======================================
| xx__-> [    9.085076][  T195] ------------[ cut here ]------------
| [    9.085284][  T195] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/195
| [    9.085529][  T195] Modules linked in:
| [    9.085980][  T195] Tainted: [W]=WARN
[    9.086081][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.086251][  T195] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.086424][  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
[    9.086899][  T195] RSP: 0018:ffa00000008f7a80 EFLAGS: 00010286
[    9.087067][  T195] RAX: 00000000ffffffa6 RBX: ff1100000ba7fe00 RCX: 1ff400000011ef16
[    9.087260][  T195] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba7febc
[    9.087453][  T195] RBP: ff11000008e24000 R08: 1fe220000174ffd9 R09: ff1100000fe8d180
[    9.087646][  T195] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.087850][  T195] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008e24000
[    9.088046][  T195] FS:  00007f4036573840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[    9.088273][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.088437][  T195] CR2: 0000000000479648 CR3: 00000000052ab003 CR4: 0000000000771ef0
[    9.088633][  T195] PKRU: 55555554
[    9.088731][  T195] Call Trace:
[    9.088839][  T195]  <TASK>
[    9.088942][  T195]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.089072][  T195]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.089204][  T195]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.089303][  T195]  register_netdevice (net/core/dev.c:11488)
[    9.089437][  T195]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.089599][  T195]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.089732][  T195]  register_netdev (net/core/dev.c:11552)
[    9.089874][  T195]  loopback_net_init (drivers/net/loopback.c:218)
[    9.090005][  T195]  ops_init (net/core/net_namespace.c:137)
[    9.090106][  T195]  setup_net (net/core/net_namespace.c:446)
[    9.090204][  T195]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.090333][  T195]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.090466][  T195]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.090601][  T195]  copy_net_ns (net/core/net_namespace.c:579)
[    9.090732][  T195]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.090876][  T195]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.091006][  T195]  ksys_unshare (kernel/fork.c:3243)
[    9.091137][  T195]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.091267][  T195]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.091397][  T195]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.091531][  T195]  ? __ia32_sys_open (fs/open.c:1374)
[    9.091663][  T195]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.091794][  T195]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.091930][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.092060][  T195]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.092189][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.092319][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.092482][  T195] RIP: 0033:0x7f4036835bcb
[    9.092621][  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
[    9.093095][  T195] RSP: 002b:00007ffed29634c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.093293][  T195] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4036835bcb
[    9.093488][  T195] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.093682][  T195] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.093881][  T195] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffed29656f0
[    9.094076][  T195] R13: 0000000000000001 R14: 00007f40365736f8 R15: 00007ffed2967875
| [    9.098548][  T195] ------------[ cut here ]------------
| [    9.098686][  T195] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/195
| [    9.098924][  T195] Modules linked in:
| [    9.099339][  T195] Tainted: [W]=WARN
[    9.099438][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.099600][  T195] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.099772][  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
[    9.100239][  T195] RSP: 0018:ffa00000008f7918 EFLAGS: 00010286
[    9.100403][  T195] RAX: 00000000ffffffa6 RBX: ff1100000c9ebc40 RCX: 1ff400000011eee9
[    9.100595][  T195] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c9ebcfc
[    9.100795][  T195] RBP: ff1100000242c000 R08: 1fe220000193d7a1 R09: ff1100000fe8d180
[    9.100993][  T195] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.101185][  T195] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000242c000
[    9.101379][  T195] FS:  00007f4036573840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[    9.101604][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.101772][  T195] CR2: 0000000000479648 CR3: 00000000052ab003 CR4: 0000000000771ef0
[    9.101974][  T195] PKRU: 55555554
[    9.102070][  T195] Call Trace:
[    9.102167][  T195]  <TASK>
[    9.102234][  T195]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.102364][  T195]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.102496][  T195]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.102596][  T195]  register_netdevice (net/core/dev.c:11488)
[    9.102728][  T195]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.102901][  T195]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.103032][  T195]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.103164][  T195]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.103295][  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))
[    9.103427][  T195]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.103560][  T195]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.103691][  T195]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[    9.103828][  T195]  ops_init (net/core/net_namespace.c:137)
[    9.103934][  T195]  setup_net (net/core/net_namespace.c:446)
[    9.104032][  T195]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.104160][  T195]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.104291][  T195]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.104422][  T195]  copy_net_ns (net/core/net_namespace.c:579)
[    9.104554][  T195]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.104685][  T195]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.104820][  T195]  ksys_unshare (kernel/fork.c:3243)
[    9.104955][  T195]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.105084][  T195]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.105214][  T195]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.105345][  T195]  ? __ia32_sys_open (fs/open.c:1374)
[    9.105475][  T195]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.105603][  T195]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.105730][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.105869][  T195]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.106000][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.106128][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.106287][  T195] RIP: 0033:0x7f4036835bcb
[    9.106423][  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
[    9.106894][  T195] RSP: 002b:00007ffed29634c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.107088][  T195] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4036835bcb
[    9.107281][  T195] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.107471][  T195] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.107663][  T195] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffed29656f0
[    9.107867][  T195] R13: 0000000000000001 R14: 00007f40365736f8 R15: 00007ffed2967875
| [    9.111709][  T195] ------------[ cut here ]------------
| [    9.112333][  T195] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/195
| [    9.112561][  T195] Modules linked in:
| [    9.112992][  T195] Tainted: [W]=WARN
[    9.113092][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.113256][  T195] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.113425][  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
[    9.113954][  T195] RSP: 0018:ffa00000008f78f8 EFLAGS: 00010286
[    9.114122][  T195] RAX: 00000000ffffffa6 RBX: ff110000094418c0 RCX: 1ff400000011eee5
[    9.114317][  T195] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000944197c
[    9.114514][  T195] RBP: ff1100000a4a4000 R08: 1fe2200001288331 R09: ff1100000fe8d180
[    9.114708][  T195] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.114963][  T195] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a4a4000
[    9.115162][  T195] FS:  00007f4036573840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[    9.115391][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.115556][  T195] CR2: 0000000000479648 CR3: 00000000052ab003 CR4: 0000000000771ef0
[    9.115753][  T195] PKRU: 55555554
[    9.115912][  T195] Call Trace:
[    9.116010][  T195]  <TASK>
[    9.116078][  T195]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.116210][  T195]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.116341][  T195]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.116442][  T195]  register_netdevice (net/core/dev.c:11488)
[    9.116576][  T195]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.116739][  T195]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.116931][  T195]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.117061][  T195]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.117192][  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))
[    9.117325][  T195]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.117458][  T195]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.117590][  T195]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[    9.117722][  T195]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.117915][  T195]  vti_init_net (net/ipv4/ip_vti.c:517)
[    9.118047][  T195]  ops_init (net/core/net_namespace.c:137)
[    9.118147][  T195]  setup_net (net/core/net_namespace.c:446)
[    9.118247][  T195]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.118378][  T195]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.118511][  T195]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.118644][  T195]  copy_net_ns (net/core/net_namespace.c:579)
[    9.118780][  T195]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.118973][  T195]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.119104][  T195]  ksys_unshare (kernel/fork.c:3243)
[    9.119233][  T195]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.119365][  T195]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.119497][  T195]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.119629][  T195]  ? __ia32_sys_open (fs/open.c:1374)
[    9.119761][  T195]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.119952][  T195]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.120083][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.120213][  T195]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.120345][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.120477][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.120640][  T195] RIP: 0033:0x7f4036835bcb
[    9.120782][  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
[    9.121305][  T195] RSP: 002b:00007ffed29634c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.121503][  T195] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4036835bcb
[    9.121696][  T195] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.121951][  T195] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.122146][  T195] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffed29656f0
[    9.122341][  T195] R13: 0000000000000001 R14: 00007f40365736f8 R15: 00007ffed2967875
| [    9.126849][  T195] ------------[ cut here ]------------
| [    9.126995][  T195] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/195
| [    9.127219][  T195] Modules linked in:
| [    9.127579][  T195] Tainted: [W]=WARN
[    9.127677][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.127854][  T195] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.128024][  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
[    9.128481][  T195] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[    9.128644][  T195] RAX: 00000000ffffffa6 RBX: ff1100000908a580 RCX: 1ff400000011ef15
[    9.128847][  T195] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000908a63c
[    9.129047][  T195] RBP: ff11000008b91000 R08: 1fe22000012114c9 R09: ff1100000fe8d180
[    9.129241][  T195] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    9.129433][  T195] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b91000
[    9.129629][  T195] FS:  00007f4036573840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[    9.129866][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.130029][  T195] CR2: 00007f8c643e2000 CR3: 00000000052ab003 CR4: 0000000000771ef0
[    9.130225][  T195] PKRU: 55555554
[    9.130322][  T195] Call Trace:
[    9.130421][  T195]  <TASK>
[    9.130490][  T195]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.130622][  T195]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.130753][  T195]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.130863][  T195]  register_netdevice (net/core/dev.c:11488)
[    9.130995][  T195]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.131156][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.131290][  T195]  register_netdev (net/core/dev.c:11552)
[    9.131419][  T195]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[    9.131550][  T195]  ops_init (net/core/net_namespace.c:137)
[    9.131649][  T195]  setup_net (net/core/net_namespace.c:446)
[    9.131748][  T195]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.131888][  T195]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.132018][  T195]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.132148][  T195]  copy_net_ns (net/core/net_namespace.c:579)
[    9.132281][  T195]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.132412][  T195]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.132540][  T195]  ksys_unshare (kernel/fork.c:3243)
[    9.132670][  T195]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.132804][  T195]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.132939][  T195]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.133070][  T195]  ? __ia32_sys_open (fs/open.c:1374)
[    9.133203][  T195]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.133333][  T195]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.133464][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.133592][  T195]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.133720][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.133859][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.134018][  T195] RIP: 0033:0x7f4036835bcb
[    9.134154][  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
[    9.134621][  T195] RSP: 002b:00007ffed29634c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.134819][  T195] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4036835bcb
[    9.135020][  T195] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.135220][  T195] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.135411][  T195] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffed29656f0
[    9.135603][  T195] R13: 0000000000000001 R14: 00007f40365736f8 R15: 00007ffed2967875
| [    9.140431][  T195] ------------[ cut here ]------------
| [    9.140565][  T195] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/195
| [    9.140790][  T195] Modules linked in:
| [    9.141214][  T195] Tainted: [W]=WARN
[    9.141311][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.141479][  T195] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.141648][  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
[    9.142125][  T195] RSP: 0018:ffa00000008f7a68 EFLAGS: 00010286
[    9.142290][  T195] RAX: 00000000ffffffa6 RBX: ff1100000908a740 RCX: 1ff400000011ef13
[    9.142485][  T195] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000908a7fc
[    9.142679][  T195] RBP: ff110000050d1000 R08: 1fe2200001211501 R09: ff1100000fe8d180
[    9.142938][  T195] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    9.143193][  T195] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000050d1000
[    9.143389][  T195] FS:  00007f4036573840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[    9.143618][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.143784][  T195] CR2: 00007f8c643e2000 CR3: 00000000052ab003 CR4: 0000000000771ef0
[    9.144044][  T195] PKRU: 55555554
[    9.144142][  T195] Call Trace:
[    9.144240][  T195]  <TASK>
[    9.144307][  T195]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.144438][  T195]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.144569][  T195]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.144671][  T195]  register_netdevice (net/core/dev.c:11488)
[    9.144808][  T195]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.145036][  T195]  register_netdev (net/core/dev.c:11552)
[    9.145167][  T195]  sit_init_net (net/ipv6/sit.c:1860)
[    9.145301][  T195]  ops_init (net/core/net_namespace.c:137)
[    9.145402][  T195]  setup_net (net/core/net_namespace.c:446)
[    9.145501][  T195]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.145632][  T195]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.145804][  T195]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.145992][  T195]  copy_net_ns (net/core/net_namespace.c:579)
[    9.146122][  T195]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.146254][  T195]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.146384][  T195]  ksys_unshare (kernel/fork.c:3243)
[    9.146514][  T195]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.146644][  T195]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.146782][  T195]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.146969][  T195]  ? __ia32_sys_open (fs/open.c:1374)
[    9.147102][  T195]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.147232][  T195]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.147361][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.147493][  T195]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.147632][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.147764][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.147983][  T195] RIP: 0033:0x7f4036835bcb
[    9.148119][  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
[    9.148588][  T195] RSP: 002b:00007ffed29634c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.148789][  T195] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4036835bcb
[    9.149037][  T195] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.149227][  T195] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.149420][  T195] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffed29656f0
[    9.149619][  T195] R13: 0000000000000001 R14: 00007f40365736f8 R15: 00007ffed2967875
| [    9.154746][  T195] ------------[ cut here ]------------
| [    9.154900][  T195] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/195
| [    9.155125][  T195] Modules linked in:
| [    9.155482][  T195] Tainted: [W]=WARN
[    9.155581][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.155749][  T195] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.156450][  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
[    9.156977][  T195] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[    9.157195][  T195] RAX: 00000000ffffffa6 RBX: ff1100000931c3c0 RCX: 1ff400000011ef15
[    9.157397][  T195] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000931c47c
[    9.157591][  T195] RBP: ff11000009d74000 R08: 1fe2200001263891 R09: ff1100000fe8d180
[    9.157791][  T195] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    9.158044][  T195] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009d74000
[    9.158246][  T195] FS:  00007f4036573840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[    9.158474][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.158638][  T195] CR2: 00007f8c643e2000 CR3: 00000000052ab003 CR4: 0000000000771ef0
[    9.158893][  T195] PKRU: 55555554
[    9.158991][  T195] Call Trace:
[    9.159097][  T195]  <TASK>
[    9.159165][  T195]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.159295][  T195]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.159426][  T195]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.159527][  T195]  register_netdevice (net/core/dev.c:11488)
[    9.159658][  T195]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.159825][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.160017][  T195]  register_netdev (net/core/dev.c:11552)
[    9.160148][  T195]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[    9.160279][  T195]  ops_init (net/core/net_namespace.c:137)
[    9.160378][  T195]  setup_net (net/core/net_namespace.c:446)
[    9.160477][  T195]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.160607][  T195]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.160737][  T195]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.160933][  T195]  copy_net_ns (net/core/net_namespace.c:579)
[    9.161066][  T195]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.161198][  T195]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.161329][  T195]  ksys_unshare (kernel/fork.c:3243)
[    9.161460][  T195]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.161589][  T195]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.161720][  T195]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.161916][  T195]  ? __ia32_sys_open (fs/open.c:1374)
[    9.162049][  T195]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.162179][  T195]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.162308][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.162440][  T195]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.162570][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.162707][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.162935][  T195] RIP: 0033:0x7f4036835bcb
[    9.163070][  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
[    9.163533][  T195] RSP: 002b:00007ffed29634c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.163736][  T195] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4036835bcb
[    9.163994][  T195] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.164188][  T195] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.164382][  T195] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffed29656f0
[    9.164585][  T195] R13: 0000000000000001 R14: 00007f40365736f8 R15: 00007ffed2967875
| [    9.201771][  T196] ------------[ cut here ]------------
| [    9.201930][  T196] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/196
| [    9.202167][  T196] Modules linked in:
| [    9.202547][  T196] Tainted: [W]=WARN
[    9.202648][  T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.202818][  T196] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.202999][  T196] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.203473][  T196] RSP: 0018:ffa0000000907a80 EFLAGS: 00010286
[    9.203643][  T196] RAX: 00000000ffffffa6 RBX: ff1100000b29fe00 RCX: 1ff4000000120f16
[    9.203847][  T196] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b29febc
[    9.204045][  T196] RBP: ff1100000feb4000 R08: 1fe2200001653fd9 R09: ff1100000f040b80
[    9.204244][  T196] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.204441][  T196] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000feb4000
[    9.204638][  T196] FS:  00007f960990b840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[    9.204878][  T196] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.205047][  T196] CR2: 00007f9609b0cc20 CR3: 0000000004d3a005 CR4: 0000000000771ef0
[    9.205246][  T196] PKRU: 55555554
[    9.205346][  T196] Call Trace:
[    9.205446][  T196]  <TASK>
[    9.205514][  T196]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.205648][  T196]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.205784][  T196]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.205892][  T196]  register_netdevice (net/core/dev.c:11488)
[    9.206025][  T196]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.206191][  T196]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.206325][  T196]  register_netdev (net/core/dev.c:11552)
[    9.206460][  T196]  loopback_net_init (drivers/net/loopback.c:218)
[    9.206594][  T196]  ops_init (net/core/net_namespace.c:137)
[    9.206696][  T196]  setup_net (net/core/net_namespace.c:446)
[    9.206801][  T196]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.206940][  T196]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.207073][  T196]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.207206][  T196]  copy_net_ns (net/core/net_namespace.c:579)
[    9.207341][  T196]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.207476][  T196]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.207610][  T196]  ksys_unshare (kernel/fork.c:3243)
[    9.207745][  T196]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.207887][  T196]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.208019][  T196]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.208152][  T196]  ? __ia32_sys_open (fs/open.c:1374)
[    9.208291][  T196]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.208422][  T196]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.208555][  T196]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.208689][  T196]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.208829][  T196]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.208968][  T196]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.209132][  T196] RIP: 0033:0x7f9609bcdbcb
[    9.209272][  T196] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.209743][  T196] RSP: 002b:00007fffcfe09948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.209954][  T196] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9609bcdbcb
[    9.210148][  T196] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.210345][  T196] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.210541][  T196] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcfe0bb70
[    9.210740][  T196] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffcfe0c875
| [    9.220422][  T196] ------------[ cut here ]------------
| [    9.220563][  T196] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/196
| [    9.220803][  T196] Modules linked in:
| [    9.221183][  T196] Tainted: [W]=WARN
[    9.221283][  T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.221448][  T196] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.221619][  T196] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.222095][  T196] RSP: 0018:ffa0000000907918 EFLAGS: 00010286
[    9.222262][  T196] RAX: 00000000ffffffa6 RBX: ff11000005361540 RCX: 1ff4000000120ee9
[    9.222460][  T196] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000053615fc
[    9.222659][  T196] RBP: ff1100000f07c000 R08: 1fe2200000a6c2c1 R09: ff1100000f040b80
[    9.222866][  T196] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.223063][  T196] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f07c000
[    9.223261][  T196] FS:  00007f960990b840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[    9.223494][  T196] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.223660][  T196] CR2: 00007f9609b0cc20 CR3: 0000000004d3a005 CR4: 0000000000771ef0
[    9.223871][  T196] PKRU: 55555554
[    9.223969][  T196] Call Trace:
[    9.224067][  T196]  <TASK>
[    9.224135][  T196]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.224266][  T196]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.224398][  T196]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.224498][  T196]  register_netdevice (net/core/dev.c:11488)
[    9.224631][  T196]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.224796][  T196]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.224935][  T196]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.225067][  T196]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.225198][  T196]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.225331][  T196]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.225464][  T196]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.225598][  T196]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[    9.225732][  T196]  ops_init (net/core/net_namespace.c:137)
[    9.225844][  T196]  setup_net (net/core/net_namespace.c:446)
[    9.225944][  T196]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.226076][  T196]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.226208][  T196]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.226342][  T196]  copy_net_ns (net/core/net_namespace.c:579)
[    9.226475][  T196]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.226610][  T196]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.226743][  T196]  ksys_unshare (kernel/fork.c:3243)
[    9.226896][  T196]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.227027][  T196]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.227164][  T196]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.227298][  T196]  ? __ia32_sys_open (fs/open.c:1374)
[    9.227431][  T196]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.227563][  T196]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.227694][  T196]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.227830][  T196]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.227968][  T196]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.228100][  T196]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.228263][  T196] RIP: 0033:0x7f9609bcdbcb
[    9.228400][  T196] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.228878][  T196] RSP: 002b:00007fffcfe09948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.229076][  T196] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9609bcdbcb
[    9.229271][  T196] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.229469][  T196] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.229665][  T196] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcfe0bb70
[    9.229870][  T196] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffcfe0c875
| [    9.234305][  T196] ------------[ cut here ]------------
| [    9.234444][  T196] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/196
| [    9.234677][  T196] Modules linked in:
| [    9.235060][  T196] Tainted: [W]=WARN
[    9.235161][  T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.235327][  T196] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.235500][  T196] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.236077][  T196] RSP: 0018:ffa00000009078f8 EFLAGS: 00010286
[    9.236246][  T196] RAX: 00000000ffffffa6 RBX: ff110000093aa040 RCX: 1ff4000000120ee5
[    9.236533][  T196] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000093aa0fc
[    9.236732][  T196] RBP: ff1100000e439000 R08: 1fe2200001275421 R09: ff1100000f040b80
[    9.237031][  T196] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.237229][  T196] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e439000
[    9.237428][  T196] FS:  00007f960990b840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[    9.237751][  T196] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.237928][  T196] CR2: 00007f9609b0cc20 CR3: 0000000004d3a005 CR4: 0000000000771ef0
[    9.238126][  T196] PKRU: 55555554
[    9.238311][  T196] Call Trace:
[    9.238409][  T196]  <TASK>
[    9.238476][  T196]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.238608][  T196]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.238740][  T196]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.238936][  T196]  register_netdevice (net/core/dev.c:11488)
[    9.239072][  T196]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.239236][  T196]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.239369][  T196]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.239587][  T196]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.239718][  T196]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.239859][  T196]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.239992][  T196]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.240215][  T196]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[    9.240347][  T196]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.240480][  T196]  vti_init_net (net/ipv4/ip_vti.c:517)
[    9.240613][  T196]  ops_init (net/core/net_namespace.c:137)
[    9.240805][  T196]  setup_net (net/core/net_namespace.c:446)
[    9.241419][  T196]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.241553][  T196]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.241686][  T196]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.241823][  T196]  copy_net_ns (net/core/net_namespace.c:579)
[    9.242014][  T196]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.242148][  T196]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.242280][  T196]  ksys_unshare (kernel/fork.c:3243)
[    9.242412][  T196]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.242543][  T196]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.242676][  T196]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.242811][  T196]  ? __ia32_sys_open (fs/open.c:1374)
[    9.243005][  T196]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.243190][  T196]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.243323][  T196]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.243454][  T196]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.243586][  T196]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.243719][  T196]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.243947][  T196] RIP: 0033:0x7f9609bcdbcb
[    9.244084][  T196] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.244552][  T196] RSP: 002b:00007fffcfe09948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.244751][  T196] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9609bcdbcb
[    9.245011][  T196] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.245206][  T196] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.245402][  T196] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcfe0bb70
[    9.245597][  T196] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffcfe0c875
| [    9.251034][  T196] ------------[ cut here ]------------
| [    9.251167][  T196] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/196
| [    9.251391][  T196] Modules linked in:
| [    9.251754][  T196] Tainted: [W]=WARN
[    9.251865][  T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.252028][  T196] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.252198][  T196] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.252661][  T196] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[    9.252829][  T196] RAX: 00000000ffffffa6 RBX: ff110000093ab380 RCX: 1ff4000000120f15
[    9.253029][  T196] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000093ab43c
[    9.253222][  T196] RBP: ff110000020bc000 R08: 1fe2200001275689 R09: ff1100000f040b80
[    9.253415][  T196] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.253608][  T196] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000020bc000
[    9.253811][  T196] FS:  00007f960990b840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[    9.254047][  T196] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.254211][  T196] CR2: 00007f9609b0cc20 CR3: 0000000004d3a005 CR4: 0000000000771ef0
[    9.254407][  T196] PKRU: 55555554
[    9.254504][  T196] Call Trace:
[    9.254622][  T196]  <TASK>
[    9.254690][  T196]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.254826][  T196]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.254963][  T196]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.255063][  T196]  register_netdevice (net/core/dev.c:11488)
[    9.255194][  T196]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.255356][  T196]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.255490][  T196]  register_netdev (net/core/dev.c:11552)
[    9.255621][  T196]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[    9.255753][  T196]  ops_init (net/core/net_namespace.c:137)
[    9.255862][  T196]  setup_net (net/core/net_namespace.c:446)
[    9.255961][  T196]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.256089][  T196]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.256219][  T196]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.256350][  T196]  copy_net_ns (net/core/net_namespace.c:579)
[    9.256481][  T196]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.256615][  T196]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.256746][  T196]  ksys_unshare (kernel/fork.c:3243)
[    9.256882][  T196]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.257014][  T196]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.257144][  T196]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.257276][  T196]  ? __ia32_sys_open (fs/open.c:1374)
[    9.257407][  T196]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.257538][  T196]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.257669][  T196]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.257803][  T196]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.257939][  T196]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.258069][  T196]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.258231][  T196] RIP: 0033:0x7f9609bcdbcb
[    9.258366][  T196] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.258842][  T196] RSP: 002b:00007fffcfe09948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.259038][  T196] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9609bcdbcb
[    9.259231][  T196] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.259425][  T196] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.259621][  T196] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcfe0bb70
[    9.259818][  T196] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffcfe0c875
| [    9.263841][  T196] ------------[ cut here ]------------
| [    9.263977][  T196] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/196
| [    9.264203][  T196] Modules linked in:
| [    9.264569][  T196] Tainted: [W]=WARN
[    9.264668][  T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.264844][  T196] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.265041][  T196] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.265505][  T196] RSP: 0018:ffa0000000907a68 EFLAGS: 00010286
[    9.265671][  T196] RAX: 00000000ffffffa6 RBX: ff1100000931cc80 RCX: 1ff4000000120f13
[    9.265876][  T196] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000931cd3c
[    9.266071][  T196] RBP: ff1100000f369000 R08: 1fe22000012639a9 R09: ff1100000f040b80
[    9.266267][  T196] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.266463][  T196] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f369000
[    9.266660][  T196] FS:  00007f960990b840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[    9.266900][  T196] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.267064][  T196] CR2: 00007f9609b0cc20 CR3: 0000000004d3a005 CR4: 0000000000771ef0
[    9.267261][  T196] PKRU: 55555554
[    9.267359][  T196] Call Trace:
[    9.267458][  T196]  <TASK>
[    9.267525][  T196]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.267657][  T196]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.267792][  T196]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.267898][  T196]  register_netdevice (net/core/dev.c:11488)
[    9.268034][  T196]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.268200][  T196]  register_netdev (net/core/dev.c:11552)
[    9.268330][  T196]  sit_init_net (net/ipv6/sit.c:1860)
[    9.268464][  T196]  ops_init (net/core/net_namespace.c:137)
[    9.268565][  T196]  setup_net (net/core/net_namespace.c:446)
[    9.268665][  T196]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.268801][  T196]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.268940][  T196]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.269074][  T196]  copy_net_ns (net/core/net_namespace.c:579)
[    9.269206][  T196]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.269338][  T196]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.269469][  T196]  ksys_unshare (kernel/fork.c:3243)
[    9.269599][  T196]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.269821][  T196]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.269963][  T196]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.270094][  T196]  ? __ia32_sys_open (fs/open.c:1374)
[    9.270227][  T196]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.270446][  T196]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.270577][  T196]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.270707][  T196]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.270846][  T196]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.271067][  T196]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.271230][  T196] RIP: 0033:0x7f9609bcdbcb
[    9.271366][  T196] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.271936][  T196] RSP: 002b:00007fffcfe09948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.272132][  T196] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9609bcdbcb
[    9.272416][  T196] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.272611][  T196] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.272903][  T196] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcfe0bb70
[    9.273096][  T196] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffcfe0c875
| [    9.279021][  T196] ------------[ cut here ]------------
| [    9.279152][  T196] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/196
| [    9.279375][  T196] Modules linked in:
| [    9.279740][  T196] Tainted: [W]=WARN
[    9.279849][  T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.280012][  T196] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.280181][  T196] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.280648][  T196] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[    9.280817][  T196] RAX: 00000000ffffffa6 RBX: ff1100000cf91000 RCX: 1ff4000000120f15
[    9.281018][  T196] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf910bc
[    9.281214][  T196] RBP: ff1100000f38c000 R08: 1fe22000019f2219 R09: ff1100000f040b80
[    9.281409][  T196] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.281604][  T196] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f38c000
[    9.281804][  T196] FS:  00007f960990b840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[    9.282040][  T196] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.282205][  T196] CR2: 00007f9609b0cc20 CR3: 0000000004d3a005 CR4: 0000000000771ef0
[    9.282401][  T196] PKRU: 55555554
[    9.282500][  T196] Call Trace:
[    9.282598][  T196]  <TASK>
[    9.282665][  T196]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.282799][  T196]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.282936][  T196]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.283036][  T196]  register_netdevice (net/core/dev.c:11488)
[    9.283168][  T196]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.283332][  T196]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.283466][  T196]  register_netdev (net/core/dev.c:11552)
[    9.283597][  T196]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[    9.283728][  T196]  ops_init (net/core/net_namespace.c:137)
[    9.283838][  T196]  setup_net (net/core/net_namespace.c:446)
[    9.283938][  T196]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.284068][  T196]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.284200][  T196]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.284331][  T196]  copy_net_ns (net/core/net_namespace.c:579)
[    9.284464][  T196]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.284597][  T196]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.284730][  T196]  ksys_unshare (kernel/fork.c:3243)
[    9.284926][  T196]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.285057][  T196]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.285189][  T196]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.285320][  T196]  ? __ia32_sys_open (fs/open.c:1374)
[    9.285452][  T196]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.285582][  T196]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.285714][  T196]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.285902][  T196]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.286089][  T196]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.286220][  T196]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.286383][  T196] RIP: 0033:0x7f9609bcdbcb
[    9.286519][  T196] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.287045][  T196] RSP: 002b:00007fffcfe09948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.287241][  T196] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9609bcdbcb
[    9.287436][  T196] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.287630][  T196] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.287888][  T196] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcfe0bb70
[    9.288082][  T196] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffcfe0c875
| [    9.399432][  T199] ------------[ cut here ]------------
| [    9.399619][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/199
| [    9.399871][  T199] Modules linked in:
| [    9.400279][  T199] Tainted: [W]=WARN
[    9.400380][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.400548][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.400724][  T199] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.401254][  T199] RSP: 0018:ffa0000000936e30 EFLAGS: 00010286
[    9.401428][  T199] RAX: 00000000ffffffa6 RBX: ff1100000cfb4c80 RCX: 1ff4000000126d8c
[    9.401629][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfb4d3c
[    9.401839][  T199] RBP: ff11000005229000 R08: 1fe22000019f69a9 R09: ff1100000fa3d180
[    9.402040][  T199] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.402238][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000556bc10
[    9.402439][  T199] FS:  00007fe1a152f840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[    9.402713][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.402891][  T199] CR2: 000000000042ebe0 CR3: 0000000004fb5006 CR4: 0000000000771ef0
[    9.403091][  T199] PKRU: 55555554
[    9.403191][  T199] Call Trace:
[    9.403291][  T199]  <TASK>
[    9.403360][  T199]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[    9.403528][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.403662][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.403762][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.403946][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.404079][  T199]  __dev_notify_flags (net/core/dev.c:9787)
[    9.404214][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.404347][  T199]  ? netif_change_name (net/core/dev.c:1495)
[    9.404479][  T199]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[    9.404615][  T199]  ? preempt_schedule_notrace_thunk (arch/x86/entry/thunk.S:13)
[    9.404790][  T199]  ? trace_irq_enable.constprop.0 (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:649 ./include/linux/cpumask.h:1231 ./include/trace/events/preemptirq.h:40)
[    9.405019][  T199]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.405155][  T199]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.405289][  T199]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[    9.405423][  T199]  veth_newlink (drivers/net/veth.c:1871)
[    9.405559][  T199]  ? veth_poll_controller (drivers/net/veth.c:1470)
[    9.405692][  T199]  ? kasan_save_stack (mm/kasan/common.c:57)
[    9.405888][  T199]  ? kasan_save_track (mm/kasan/common.c:78)
[    9.406039][  T199]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.406190][  T199]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    9.406325][  T199]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    9.406461][  T199]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.406595][  T199]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.406729][  T199]  ? rtnl_create_link (net/core/rtnetlink.c:3733)
[    9.406875][  T199]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    9.407012][  T199]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.407146][  T199]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.407280][  T199]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.407419][  T199]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.407559][  T199]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.407694][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.407837][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.407972][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.408107][  T199]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.408242][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.408379][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.408513][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.408648][  T199]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.408785][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.408924][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.409059][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.409195][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.409328][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.409463][  T199]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.409597][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.409732][  T199]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.409880][  T199]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.410016][  T199]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.410154][  T199]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.410289][  T199]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.410424][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.410559][  T199]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.410694][  T199]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.410839][  T199]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.410977][  T199]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.411112][  T199]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.411248][  T199]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.411415][  T199]  ? move_addr_to_kernel (net/socket.c:258)
[    9.411554][  T199]  ___sys_sendmsg (net/socket.c:2752)
[    9.411691][  T199]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.411877][  T199]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.412051][  T199]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[    9.412188][  T199]  __sys_sendmsg (net/socket.c:2784)
[    9.412323][  T199]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.412463][  T199]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[    9.412599][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.412735][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.412879][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.413014][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.413148][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.413316][  T199] RIP: 0033:0x7fe1a176908e
[    9.413459][  T199] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.413948][  T199] RSP: 002b:00007ffc7cd77570 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.414152][  T199] RAX: ffffffffffffffda RBX: 00007ffc7cd77d28 RCX: 00007fe1a176908e
[    9.414354][  T199] RDX: 0000000000000000 RSI: 00007ffc7cd77620 RDI: 0000000000000005
[    9.414555][  T199] RBP: 00007ffc7cd77580 R08: 0000000000000000 R09: 0000000000000000
[    9.414755][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3b8
[    9.414965][  T199] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc7cd77ce0
| [    9.422705][  T199] ------------[ cut here ]------------
| [    9.422913][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/199
| [    9.423144][  T199] Modules linked in:
| [    9.423512][  T199] Tainted: [W]=WARN
[    9.423709][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.423933][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.424109][  T199] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.424732][  T199] RSP: 0018:ffa00000009371b0 EFLAGS: 00010286
[    9.424959][  T199] RAX: 00000000ffffffa6 RBX: ff1100000e5ccac0 RCX: 1ff4000000126dfc
[    9.425159][  T199] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e5ccb7c
[    9.425357][  T199] RBP: ff1100000df8c000 R08: 1fe2200001cb9971 R09: ff1100000fa3d180
[    9.425554][  T199] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.425749][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa8c03b20
[    9.426097][  T199] FS:  00007fe1a152f840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[    9.426330][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.426495][  T199] CR2: 000000000042ebe0 CR3: 0000000004fb5006 CR4: 0000000000771ef0
[    9.426693][  T199] PKRU: 55555554
[    9.426797][  T199] Call Trace:
[    9.426951][  T199]  <TASK>
[    9.427019][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.427154][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.427255][  T199]  __dev_notify_flags (net/core/dev.c:9787)
[    9.427478][  T199]  ? netif_change_name (net/core/dev.c:1495)
[    9.427612][  T199]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.427745][  T199]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.427940][  T199]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.428074][  T199]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    9.428211][  T199]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.428343][  T199]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.428563][  T199]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.428701][  T199]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.428897][  T199]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.429032][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.429162][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.429294][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.429517][  T199]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.429649][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.429789][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.429981][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.430114][  T199]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.430246][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.430376][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.430596][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.430733][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.430923][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.431057][  T199]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.431190][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.431322][  T199]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.431548][  T199]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.431679][  T199]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.431816][  T199]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.432005][  T199]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.432139][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.432273][  T199]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.432407][  T199]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.432633][  T199]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.432772][  T199]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.432960][  T199]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.433094][  T199]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.433257][  T199]  ? move_addr_to_kernel (net/socket.c:258)
[    9.433394][  T199]  ___sys_sendmsg (net/socket.c:2752)
[    9.433619][  T199]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.433755][  T199]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.433985][  T199]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[    9.434118][  T199]  __sys_sendmsg (net/socket.c:2784)
[    9.434251][  T199]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.434387][  T199]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[    9.434617][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.434754][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.434950][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.435082][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.435215][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.435379][  T199] RIP: 0033:0x7fe1a176908e
[    9.435517][  T199] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.436137][  T199] RSP: 002b:00007ffc7cd77570 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.436335][  T199] RAX: ffffffffffffffda RBX: 00007ffc7cd77d28 RCX: 00007fe1a176908e
[    9.436534][  T199] RDX: 0000000000000000 RSI: 00007ffc7cd77620 RDI: 0000000000000005
[    9.436822][  T199] RBP: 00007ffc7cd77580 R08: 0000000000000000 R09: 0000000000000000
[    9.437075][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3b8
[    9.437272][  T199] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc7cd77ce0
| [    9.463054][  T200] ------------[ cut here ]------------
| [    9.463202][  T200] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/200
| [    9.463430][  T200] Modules linked in:
| [    9.463816][  T200] Tainted: [W]=WARN
[    9.463923][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.464086][  T200] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.464256][  T200] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.464721][  T200] RSP: 0018:ffa0000000947020 EFLAGS: 00010286
[    9.464899][  T200] RAX: 00000000ffffffa6 RBX: ff1100000c054200 RCX: 1ff4000000128dca
[    9.465091][  T200] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c0542bc
[    9.465284][  T200] RBP: ff1100000df8c000 R08: 1fe220000180a859 R09: ff1100000f95d158
[    9.465478][  T200] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[    9.465670][  T200] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.465876][  T200] FS:  00007f360ea4f840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[    9.466103][  T200] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.466266][  T200] CR2: 0000000007aa0988 CR3: 000000000a318005 CR4: 0000000000771ef0
[    9.466461][  T200] PKRU: 55555554
[    9.466558][  T200] Call Trace:
[    9.466655][  T200]  <TASK>
[    9.466723][  T200]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.466869][  T200]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.466968][  T200]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.467098][  T200]  __dev_notify_flags (net/core/dev.c:9787)
[    9.467230][  T200]  ? netif_change_name (net/core/dev.c:1495)
[    9.467361][  T200]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.467493][  T200]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.467623][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.467753][  T200]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.467897][  T200]  netif_change_flags (net/core/dev.c:9820)
[    9.468030][  T200]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.468162][  T200]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.468295][  T200]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.468427][  T200]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.468595][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.468726][  T200]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.468871][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.469003][  T200]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.469137][  T200]  ? __kernel_text_address (kernel/extable.c:79)
[    9.469268][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.469401][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.469531][  T200]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.469663][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.469801][  T200]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.470030][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.470162][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.470292][  T200]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.470424][  T200]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.470556][  T200]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.470686][  T200]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.470824][  T200]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.471036][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.471172][  T200]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.471307][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.471437][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.471569][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.471698][  T200]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.471911][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.472119][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.472249][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.472380][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.472510][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.472643][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.472778][  T200]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.473006][  T200]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.473136][  T200]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.473266][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.473400][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.473530][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.473661][  T200]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.473797][  T200]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.473983][  T200]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.474116][  T200]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.474245][  T200]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.474379][  T200]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.474510][  T200]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.474642][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.474784][  T200]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.474982][  T200]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.475114][  T200]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.475246][  T200]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.475378][  T200]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.475510][  T200]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.475674][  T200]  ? move_addr_to_kernel (net/socket.c:258)
[    9.475813][  T200]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.475999][  T200]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.476131][  T200]  ___sys_sendmsg (net/socket.c:2752)
[    9.476262][  T200]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.476424][  T200]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.476569][  T200]  __sys_sendmsg (net/socket.c:2784)
[    9.476699][  T200]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.476892][  T200]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.477059][  T200]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.477191][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.477335][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.477465][  T200]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.477594][  T200]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.477723][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.477930][  T200] RIP: 0033:0x7f360ec8908e
[    9.478066][  T200] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.478531][  T200] RSP: 002b:00007fffdb2c8f80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.478726][  T200] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f360ec8908e
[    9.478931][  T200] RDX: 0000000000000000 RSI: 00007fffdb2c9030 RDI: 0000000000000005
[    9.479131][  T200] RBP: 00007fffdb2c8f90 R08: 0000000000000000 R09: 0000000000000000
[    9.479324][  T200] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3b8
[    9.479518][  T200] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffdb2c9700
| [    9.515489][  T201] ------------[ cut here ]------------
| [    9.515635][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/201
| [    9.516438][  T201] Modules linked in:
| [    9.516805][  T201] Tainted: [W]=WARN
[    9.516908][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.517070][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.517238][  T201] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.517700][  T201] RSP: 0018:ffa0000000957020 EFLAGS: 00010286
[    9.517872][  T201] RAX: 00000000ffffffa6 RBX: ff1100000e5cc580 RCX: 1ff400000012adca
[    9.518065][  T201] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e5cc63c
[    9.518255][  T201] RBP: ff11000005229000 R08: 1fe2200001cb98c9 R09: ff1100000df08b58
[    9.518448][  T201] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    9.518639][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.518843][  T201] FS:  00007f98ab4d9840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[    9.519069][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.519230][  T201] CR2: 0000000018fce988 CR3: 0000000004c6f003 CR4: 0000000000771ef0
[    9.519425][  T201] PKRU: 55555554
[    9.519523][  T201] Call Trace:
[    9.519619][  T201]  <TASK>
[    9.519686][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.519823][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.519926][  T201]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.520055][  T201]  __dev_notify_flags (net/core/dev.c:9787)
[    9.520185][  T201]  ? netif_change_name (net/core/dev.c:1495)
[    9.520315][  T201]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.520446][  T201]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.520575][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.520704][  T201]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.520845][  T201]  netif_change_flags (net/core/dev.c:9820)
[    9.520975][  T201]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.521106][  T201]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.521237][  T201]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.521368][  T201]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.521529][  T201]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.521659][  T201]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.521794][  T201]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.521928][  T201]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.522057][  T201]  ? __kernel_text_address (kernel/extable.c:79)
[    9.522186][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.522316][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.522444][  T201]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.522575][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.522704][  T201]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.522844][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.522974][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.523104][  T201]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.523236][  T201]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.523367][  T201]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.523497][  T201]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.523629][  T201]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.523763][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.523905][  T201]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.524036][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.524164][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.524294][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.524425][  T201]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.524554][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.524685][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.524820][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.524955][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.525085][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.525217][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.525347][  T201]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.525477][  T201]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.525606][  T201]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.525735][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.525879][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.526009][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.526140][  T201]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.526269][  T201]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.526400][  T201]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.526533][  T201]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.526662][  T201]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.526798][  T201]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.526937][  T201]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.527067][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.527199][  T201]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.527331][  T201]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.527463][  T201]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.527596][  T201]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.527728][  T201]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.527870][  T201]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.528032][  T201]  ? move_addr_to_kernel (net/socket.c:258)
[    9.528163][  T201]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.528294][  T201]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.528426][  T201]  ___sys_sendmsg (net/socket.c:2752)
[    9.528556][  T201]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.528719][  T201]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.528872][  T201]  __sys_sendmsg (net/socket.c:2784)
[    9.529002][  T201]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.529131][  T201]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.529296][  T201]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.529427][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.529559][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.529689][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.529823][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.529958][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.530119][  T201] RIP: 0033:0x7f98ab71308e
[    9.530255][  T201] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.530715][  T201] RSP: 002b:00007ffc150515f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.530916][  T201] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f98ab71308e
[    9.531110][  T201] RDX: 0000000000000000 RSI: 00007ffc150516a0 RDI: 0000000000000005
[    9.531301][  T201] RBP: 00007ffc15051600 R08: 0000000000000000 R09: 0000000000000000
[    9.531494][  T201] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3b8
[    9.531686][  T201] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc15051d70
| [    9.533763][   T94] ------------[ cut here ]------------
| [    9.533931][   T94] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/94
| [    9.534216][   T94] Modules linked in:
| [    9.534610][   T94] Tainted: [W]=WARN
[    9.534700][   T94] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.535354][   T94] Workqueue: events_unbound linkwatch_event
[    9.535518][   T94] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.535677][   T94] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.536399][   T94] RSP: 0018:ffa00000004b79e0 EFLAGS: 00010286
[    9.536550][   T94] RAX: 00000000ffffffa6 RBX: ff1100000e5cda80 RCX: 1ff4000000096f02
[    9.536727][   T94] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e5cdb3c
[    9.536915][   T94] RBP: ff1100000df8c000 R08: 1fe2200001cb9b69 R09: ff1100000dda51a8
[    9.537091][   T94] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[    9.537267][   T94] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.537446][   T94] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[    9.537658][   T94] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.537810][   T94] CR2: 0000000018fce988 CR3: 000000003174d001 CR4: 0000000000771ef0
[    9.537993][   T94] PKRU: 55555554
[    9.538083][   T94] Call Trace:
[    9.538246][   T94]  <TASK>
[    9.538308][   T94]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.538430][   T94]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.538550][   T94]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.538641][   T94]  netif_state_change (net/core/dev.c:1605)
[    9.538842][   T94]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[    9.538990][   T94]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    9.539108][   T94]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    9.539300][   T94]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.539420][   T94]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    9.539539][   T94]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[    9.539658][   T94]  process_one_work (kernel/workqueue.c:3314)
[    9.539866][   T94]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.539984][   T94]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.540108][   T94]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.540227][   T94]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.540418][   T94]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    9.540541][   T94]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.540660][   T94]  kthread (kernel/kthread.c:436)
[    9.540749][   T94]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.540912][   T94]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.541030][   T94]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.541156][   T94]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.541303][   T94]  ? trace_x86_fpu_regs_deactivated (./arch/x86/include/asm/trace/fpu.h:52 (discriminator 22))
[    9.541527][   T94]  ? save_fpregs_to_fpstate (arch/x86/kernel/fpu/core.c:144)
[    9.541646][   T94]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.541765][   T94]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.541894][   T94]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.565820][  T202] ------------[ cut here ]------------
| [    9.566105][  T202] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/202
| [    9.566413][  T202] Modules linked in:
| [    9.566949][  T202] Tainted: [W]=WARN
[    9.567094][  T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.567317][  T202] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.567562][  T202] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.568086][  T202] RSP: 0018:ffa0000000967050 EFLAGS: 00010286
[    9.568301][  T202] RAX: 00000000ffffffa6 RBX: ff1100000a2b6c80 RCX: 1ff400000012cdd0
[    9.568568][  T202] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2b6d3c
[    9.568813][  T202] RBP: ff1100000df8c000 R08: 1fe2200001456da9 R09: ff1100000fa38b80
[    9.569119][  T202] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[    9.569357][  T202] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[    9.569617][  T202] FS:  00007f6418923840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[    9.569910][  T202] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.570119][  T202] CR2: 000000002f74e988 CR3: 000000000e680002 CR4: 0000000000771ef0
[    9.570360][  T202] PKRU: 55555554
[    9.570503][  T202] Call Trace:
[    9.570646][  T202]  <TASK>
[    9.570785][  T202]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.570975][  T202]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[    9.571154][  T202]  notifier_call_chain (kernel/notifier.c:85)
[    9.571334][  T202]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[    9.571512][  T202]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.571690][  T202]  ? netif_set_group (net/core/dev.c:9947)
[    9.571887][  T202]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[    9.572114][  T202]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[    9.572296][  T202]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[    9.572477][  T202]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.572656][  T202]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.572884][  T202]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.573061][  T202]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.573255][  T202]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.573431][  T202]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.573609][  T202]  ? __kernel_text_address (kernel/extable.c:79)
[    9.573792][  T202]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.573984][  T202]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.574161][  T202]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.574359][  T202]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.574537][  T202]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.574712][  T202]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.574913][  T202]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.575092][  T202]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.575270][  T202]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.575447][  T202]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.575644][  T202]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.575865][  T202]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.576045][  T202]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.576225][  T202]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.576402][  T202]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.576580][  T202]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.576779][  T202]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.576969][  T202]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.577150][  T202]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.577326][  T202]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.577503][  T202]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.577682][  T202]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.577880][  T202]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.578075][  T202]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.578252][  T202]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.578428][  T202]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.578637][  T202]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.578818][  T202]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.579007][  T202]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.579204][  T202]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.579381][  T202]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.579558][  T202]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.579738][  T202]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.579934][  T202]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.580113][  T202]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.580291][  T202]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.580487][  T202]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.580664][  T202]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.580863][  T202]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.581041][  T202]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.581219][  T202]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.581397][  T202]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.581592][  T202]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.581806][  T202]  ? move_addr_to_kernel (net/socket.c:258)
[    9.582001][  T202]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.582178][  T202]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.582357][  T202]  ___sys_sendmsg (net/socket.c:2752)
[    9.582533][  T202]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.582757][  T202]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.582965][  T202]  __sys_sendmsg (net/socket.c:2784)
[    9.583142][  T202]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.583330][  T202]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.583541][  T202]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.583718][  T202]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.583948][  T202]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.584142][  T202]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.584317][  T202]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.584495][  T202]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.584713][  T202] RIP: 0033:0x7f6418b5d08e
[    9.584916][  T202] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.585438][  T202] RSP: 002b:00007ffc25279c70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.585685][  T202] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6418b5d08e
[    9.585954][  T202] RDX: 0000000000000000 RSI: 00007ffc25279d20 RDI: 0000000000000005
[    9.586209][  T202] RBP: 00007ffc25279c80 R08: 0000000000000000 R09: 0000000000000000
[    9.586447][  T202] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3b9
[    9.586686][  T202] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc2527a3f0
| [    9.616192][  T203] ------------[ cut here ]------------
| [    9.616337][  T203] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/203
| [    9.616562][  T203] Modules linked in:
| [    9.616938][  T203] Tainted: [W]=WARN
[    9.617037][  T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.617199][  T203] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.617367][  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
[    9.617830][  T203] RSP: 0018:ffa0000000967150 EFLAGS: 00010286
[    9.617996][  T203] RAX: 00000000ffffffa6 RBX: ff1100000c054740 RCX: 1ff400000012cdf0
[    9.618188][  T203] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c0547fc
[    9.618380][  T203] RBP: ff11000005229000 R08: 1fe220000180a901 R09: ff1100000fa3ae58
[    9.618570][  T203] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[    9.618761][  T203] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c5274c0
[    9.618967][  T203] FS:  00007fe90a6f6840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[    9.619191][  T203] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.619353][  T203] CR2: 00000000004ebb20 CR3: 000000000f4ff001 CR4: 0000000000771ef0
[    9.619546][  T203] PKRU: 55555554
[    9.619642][  T203] Call Trace:
[    9.619738][  T203]  <TASK>
[    9.619809][  T203]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.619941][  T203]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.620070][  T203]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.620169][  T203]  netif_state_change (net/core/dev.c:1605)
[    9.620300][  T203]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[    9.620462][  T203]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[    9.620624][  T203]  linkwatch_sync_dev (net/core/link_watch.c:295)
[    9.620754][  T203]  rtnl_getlink (net/core/rtnetlink.c:4273)
[    9.620893][  T203]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.621021][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.621148][  T203]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[    9.621275][  T203]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.621401][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.621528][  T203]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.621672][  T203]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.621804][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.621994][  T203]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.622176][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.622303][  T203]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.622433][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.622563][  T203]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[    9.622692][  T203]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.622823][  T203]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.623028][  T203]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.623157][  T203]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.623287][  T203]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.623415][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.623544][  T203]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.623672][  T203]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.623806][  T203]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.624014][  T203]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.624142][  T203]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.624271][  T203]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.624400][  T203]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.624529][  T203]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.624659][  T203]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.624796][  T203]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.625001][  T203]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.625131][  T203]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.625259][  T203]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.625387][  T203]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.625545][  T203]  ? move_addr_to_kernel (net/socket.c:258)
[    9.625674][  T203]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.625808][  T203]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.626061][  T203]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.626189][  T203]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.626352][  T203]  ___sys_sendmsg (net/socket.c:2752)
[    9.626479][  T203]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.626607][  T203]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.626742][  T203]  ? move_addr_to_user (./include/linux/uaccess.h:236 net/socket.c:302)
[    9.626914][  T203]  ? do_getsockname (net/socket.c:2192)
[    9.627043][  T203]  __sys_sendmsg (net/socket.c:2784)
[    9.627171][  T203]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.627302][  T203]  ? __sys_getsockname (net/socket.c:2210)
[    9.627429][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.627558][  T203]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.627686][  T203]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.627818][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.627952][  T203]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.628112][  T203] RIP: 0033:0x7fe90a93008e
[    9.628246][  T203] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.628701][  T203] RSP: 002b:00007ffd4e2b7200 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.628905][  T203] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe90a93008e
[    9.629095][  T203] RDX: 0000000000000000 RSI: 00007ffd4e2b72b0 RDI: 0000000000000006
[    9.629285][  T203] RBP: 00007ffd4e2b7210 R08: 0000000000000000 R09: 0000000000000000
[    9.629475][  T203] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3b8
[    9.629668][  T203] R13: 00007ffd4e2b7360 R14: 0000000000000000 R15: 0000000000000004
| [    9.634786][  T203] ------------[ cut here ]------------
| [    9.634944][  T203] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/203
| [    9.635173][  T203] Modules linked in:
| [    9.635532][  T203] Tainted: [W]=WARN
[    9.635629][  T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.635794][  T203] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.635972][  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
[    9.636437][  T203] RSP: 0018:ffa0000000967050 EFLAGS: 00010286
[    9.636600][  T203] RAX: 00000000ffffffa6 RBX: ff1100000c11c900 RCX: 1ff400000012cdd0
[    9.636799][  T203] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c11c9bc
[    9.636998][  T203] RBP: ff11000005229000 R08: 1fe2200001823939 R09: ff1100000fa3ae80
[    9.637191][  T203] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[    9.637383][  T203] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[    9.637578][  T203] FS:  00007fe90a6f6840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[    9.637808][  T203] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.637975][  T203] CR2: 00000000248c3988 CR3: 000000000f4ff001 CR4: 0000000000771ef0
[    9.638171][  T203] PKRU: 55555554
[    9.638268][  T203] Call Trace:
[    9.638365][  T203]  <TASK>
[    9.638431][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.638562][  T203]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[    9.638691][  T203]  notifier_call_chain (kernel/notifier.c:85)
[    9.638829][  T203]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[    9.639011][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.639140][  T203]  ? netif_set_group (net/core/dev.c:9947)
[    9.639271][  T203]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[    9.639433][  T203]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[    9.639568][  T203]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[    9.639700][  T203]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.639843][  T203]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.640003][  T203]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.640133][  T203]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.640263][  T203]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.640391][  T203]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.640521][  T203]  ? __kernel_text_address (kernel/extable.c:79)
[    9.640650][  T203]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.640785][  T203]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.640920][  T203]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.641049][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.641178][  T203]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.641307][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.641435][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.641565][  T203]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.641697][  T203]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.641829][  T203]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.641964][  T203]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.642099][  T203]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.642232][  T203]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.642364][  T203]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.642497][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.642628][  T203]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.642757][  T203]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.642899][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.643031][  T203]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.643159][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.643287][  T203]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.643416][  T203]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.643549][  T203]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.643678][  T203]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.643811][  T203]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.644084][  T203]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.644213][  T203]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.644345][  T203]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.644474][  T203]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.644604][  T203]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.644734][  T203]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.644933][  T203]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.645065][  T203]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.645193][  T203]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.645324][  T203]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.645454][  T203]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.645584][  T203]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.645717][  T203]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.645908][  T203]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.646042][  T203]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.646225][  T203]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.646355][  T203]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.646483][  T203]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.646643][  T203]  ? move_addr_to_kernel (net/socket.c:258)
[    9.646781][  T203]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.646967][  T203]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.647097][  T203]  ___sys_sendmsg (net/socket.c:2752)
[    9.647225][  T203]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.647385][  T203]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.647527][  T203]  __sys_sendmsg (net/socket.c:2784)
[    9.647656][  T203]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.647790][  T203]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.648010][  T203]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.648140][  T203]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.648271][  T203]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.648400][  T203]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.648530][  T203]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.648660][  T203]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.648825][  T203] RIP: 0033:0x7fe90a93008e
[    9.649020][  T203] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.649488][  T203] RSP: 002b:00007ffd4e2b8e80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.649683][  T203] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe90a93008e
[    9.650022][  T203] RDX: 0000000000000000 RSI: 00007ffd4e2b8f30 RDI: 0000000000000005
[    9.650217][  T203] RBP: 00007ffd4e2b8e90 R08: 0000000000000000 R09: 0000000000000000
[    9.650409][  T203] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3b9
[    9.650601][  T203] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd4e2b9600
| [   12.784450][   T12] ------------[ cut here ]------------
| [   12.784687][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   12.785057][   T12] Modules linked in:
| [   12.785550][   T12] Tainted: [W]=WARN
[   12.785707][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.785962][   T12] Workqueue: netns cleanup_net
[   12.786139][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.786343][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.786822][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.787045][   T12] RAX: 00000000ffffffa6 RBX: ff11000009440580 RCX: 1ff4000000018eed
[   12.787265][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000944063c
[   12.787491][   T12] RBP: ff1100000f38c000 R08: 1fe22000012880c9 R09: ff11000001aed1d0
[   12.787714][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.788011][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.788238][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   12.788493][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.788690][   T12] CR2: 00007f2c99fd5000 CR3: 000000003174d002 CR4: 0000000000771ef0
[   12.788962][   T12] PKRU: 55555554
[   12.789102][   T12] Call Trace:
[   12.789236][   T12]  <TASK>
[   12.789347][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.789550][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.789745][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.790258][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.790426][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.790588][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.790754][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.790943][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.791112][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.791276][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.791458][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.791626][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.791801][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.792001][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.792192][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.792358][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.792527][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.792692][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.792883][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.793053][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.793217][   T12]  kthread (kernel/kthread.c:436)
[   12.793354][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.793549][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.793716][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.793907][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.794101][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.794265][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.794430][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.797445][   T12] ------------[ cut here ]------------
| [   12.797590][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   12.797825][   T12] Modules linked in:
| [   12.798196][   T12] Tainted: [W]=WARN
[   12.798286][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.798441][   T12] Workqueue: netns cleanup_net
[   12.798568][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.798723][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.799208][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.799362][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b29e740 RCX: 1ff4000000018eed
[   12.799539][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b29e7fc
[   12.799727][   T12] RBP: ff1100000f369000 R08: 1fe2200001653d01 R09: ff11000001aed1d0
[   12.799954][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.800129][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.800348][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   12.800551][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.800713][   T12] CR2: 0000558c27656d5c CR3: 0000000004f23002 CR4: 0000000000771ef0
[   12.800943][   T12] PKRU: 55555554
[   12.801030][   T12] Call Trace:
[   12.801116][   T12]  <TASK>
[   12.801178][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.801327][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.801479][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.801604][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.801724][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.801862][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.801982][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.802106][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.802225][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.802358][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.802479][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.802597][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.802715][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.802846][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.802968][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.803092][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.803217][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.803333][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.803454][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.803594][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.803713][   T12]  kthread (kernel/kthread.c:436)
[   12.803805][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.803956][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.804073][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.804196][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.804343][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.804464][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.804583][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.806888][   T12] ------------[ cut here ]------------
| [   12.807023][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   12.807263][   T12] Modules linked in:
| [   12.807634][   T12] Tainted: [W]=WARN
[   12.807724][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.807887][   T12] Workqueue: netns cleanup_net
[   12.808016][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.808171][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.808593][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.808745][   T12] RAX: 00000000ffffffa6 RBX: ff11000006040c80 RCX: 1ff4000000018eed
[   12.808981][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000006040d3c
[   12.809158][   T12] RBP: ff110000020bc000 R08: 1fe2200000c081a9 R09: ff11000001aed1d0
[   12.809334][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.809515][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.809692][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   12.810000][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.810198][   T12] CR2: 00007f31c7bd97a0 CR3: 0000000004f8e003 CR4: 0000000000771ef0
[   12.810378][   T12] PKRU: 55555554
[   12.810466][   T12] Call Trace:
[   12.810554][   T12]  <TASK>
[   12.810615][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.810998][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.811148][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.811267][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.811387][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.811508][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.811625][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.811745][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.811945][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.812066][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.812210][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.812333][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.812454][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.812574][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.812690][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.812813][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.813003][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.813121][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.813244][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.813366][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.813486][   T12]  kthread (kernel/kthread.c:436)
[   12.813579][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.813724][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.813927][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.814050][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.814199][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.814317][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.814439][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.816696][   T12] ------------[ cut here ]------------
| [   12.816884][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   12.817159][   T12] Modules linked in:
| [   12.817619][   T12] Tainted: [W]=WARN
[   12.817753][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.817984][   T12] Workqueue: netns cleanup_net
[   12.818152][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.818353][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.818820][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.819030][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ba7e900 RCX: 1ff4000000018eed
[   12.819250][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba7e9bc
[   12.819472][   T12] RBP: ff1100000e439000 R08: 1fe220000174fd39 R09: ff11000001aed1d0
[   12.819692][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.819935][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.820158][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   12.820413][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.820607][   T12] CR2: 00007f2c99fd5000 CR3: 000000003174d002 CR4: 0000000000771ef0
[   12.820849][   T12] PKRU: 55555554
[   12.820982][   T12] Call Trace:
[   12.821114][   T12]  <TASK>
[   12.821219][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.821416][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.821611][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.821785][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.821967][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.822130][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.822297][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.822462][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.822630][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.822800][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.822979][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.823144][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.823307][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.823503][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.823667][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.823882][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.824052][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.824221][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.824390][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.824580][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.824758][   T12]  kthread (kernel/kthread.c:436)
[   12.824924][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.825115][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.825280][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.825448][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.825641][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.825825][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.826056][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.828536][   T12] ------------[ cut here ]------------
| [   12.828694][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   12.828993][   T12] Modules linked in:
| [   12.829505][   T12] Tainted: [W]=WARN
[   12.829639][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.829852][   T12] Workqueue: netns cleanup_net
[   12.830025][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.830224][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.830687][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   12.830933][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ba7e580 RCX: 1ff4000000018eed
[   12.831155][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba7e63c
[   12.831377][   T12] RBP: ff1100000f07c000 R08: 1fe220000174fcc9 R09: ff11000001aed1d0
[   12.831599][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.831824][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.832058][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   12.832312][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.832505][   T12] CR2: 00007f2c99fd5000 CR3: 000000003174d002 CR4: 0000000000771ef0
[   12.832728][   T12] PKRU: 55555554
[   12.832882][   T12] Call Trace:
[   12.833016][   T12]  <TASK>
[   12.833124][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.833321][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.833518][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.833686][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.833877][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.834044][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.834212][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.834377][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.834545][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.834709][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.834898][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.835065][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.835228][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.835393][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.835556][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.835722][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.835928][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.836096][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.836295][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.836466][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.836631][   T12]  kthread (kernel/kthread.c:436)
[   12.836766][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.836980][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.837175][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.837343][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.837533][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.837697][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.837884][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.855522][   T12] ------------[ cut here ]------------
| [   12.855692][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   12.856391][   T12] Modules linked in:
| [   12.856929][   T12] Tainted: [W]=WARN
[   12.857069][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.857269][   T12] Workqueue: netns cleanup_net
[   12.857444][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.857654][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.858158][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   12.858363][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ba7e200 RCX: 1ff4000000018eaf
[   12.858592][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba7e2bc
[   12.858847][   T12] RBP: ff11000005229000 R08: 1fe220000174fc59 R09: ff11000001aed1d0
[   12.859078][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   12.859314][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000df8c000
[   12.859546][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   12.859811][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.860028][   T12] CR2: 00007f2c99fd5000 CR3: 000000003174d002 CR4: 0000000000771ef0
[   12.860260][   T12] PKRU: 55555554
[   12.860398][   T12] Call Trace:
[   12.860537][   T12]  <TASK>
[   12.860647][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.860827][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.860984][   T12]  netif_close_many (net/core/dev.c:1804)
[   12.861154][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.861323][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.861494][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.861663][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   12.861856][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   12.862058][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   12.862265][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.862435][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.862633][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.862812][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.862994][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   12.863194][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   12.863366][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.863537][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.863708][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.863899][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.864071][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.864243][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.864411][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.864585][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.864758][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.864944][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.865115][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.865285][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.865457][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.865631][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.865806][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.866009][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.866188][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.866358][   T12]  kthread (kernel/kthread.c:436)
[   12.866510][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.866710][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.866901][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.867075][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.867275][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.867611][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.867792][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.871124][   T12] ------------[ cut here ]------------
| [   12.871279][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   12.871522][   T12] Modules linked in:
| [   12.871940][   T12] Tainted: [W]=WARN
[   12.872032][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.872186][   T12] Workqueue: netns cleanup_net
[   12.872314][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.872474][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.872929][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   12.873084][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c9eb700 RCX: 1ff4000000018eaf
[   12.873268][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c9eb7bc
[   12.873453][   T12] RBP: ff1100000df8c000 R08: 1fe220000193d6f9 R09: ff11000001aed1d0
[   12.873641][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   12.873838][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   12.874032][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   12.874248][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.874404][   T12] CR2: 0000557dc5616d5c CR3: 000000000c954004 CR4: 0000000000771ef0
[   12.874590][   T12] PKRU: 55555554
[   12.874683][   T12] Call Trace:
[   12.874775][   T12]  <TASK>
[   12.874849][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.874974][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.875098][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.875195][   T12]  netif_close_many (net/core/dev.c:1804)
[   12.875318][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.875443][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.875566][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.875689][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   12.875817][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   12.875978][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   12.876132][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.876256][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.876409][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.876541][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.876664][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   12.876823][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   12.876954][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.877084][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.877209][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.877333][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.877457][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.877580][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.877704][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.877841][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.877965][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.878088][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.878212][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.878336][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.878462][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.878590][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.878713][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.878850][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.878981][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.879105][   T12]  kthread (kernel/kthread.c:436)
[   12.879198][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.879353][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.879477][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.879600][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.879755][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.879889][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.880014][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.882919][   T12] ------------[ cut here ]------------
| [   12.883043][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   12.883282][   T12] Modules linked in:
| [   12.883643][   T12] Tainted: [W]=WARN
[   12.883732][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.883898][   T12] Workqueue: netns cleanup_net
[   12.884023][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.884178][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.884604][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   12.884768][   T12] RAX: 00000000ffffffa6 RBX: ff1100000908a3c0 RCX: 1ff4000000018ed5
[   12.884957][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000908a47c
[   12.885139][   T12] RBP: ff11000005229000 R08: 1fe2200001211491 R09: ff11000001aed1d0
[   12.885316][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   12.885494][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.885674][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   12.885919][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.886069][   T12] CR2: 0000557dc5616d5c CR3: 000000000c954004 CR4: 0000000000771ef0
[   12.886251][   T12] PKRU: 55555554
[   12.886341][   T12] Call Trace:
[   12.886432][   T12]  <TASK>
[   12.886499][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.886655][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.886809][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.886936][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.887054][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   12.887211][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.887332][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.887453][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.887573][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.887694][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.887820][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.887944][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.888067][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.888190][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.888311][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.888433][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.888551][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.888677][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.888805][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.888929][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.889053][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.889180][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.889300][   T12]  kthread (kernel/kthread.c:436)
[   12.889391][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.889541][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.889663][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.889787][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.889944][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.890066][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.890185][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.908475][   T12] ------------[ cut here ]------------
| [   12.908650][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   12.908953][   T12] Modules linked in:
| [   12.909433][   T12] Tainted: [W]=WARN
[   12.909569][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.909763][   T12] Workqueue: netns cleanup_net
[   12.909957][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.910173][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.910636][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   12.910861][   T12] RAX: 00000000ffffffa6 RBX: ff1100000908a200 RCX: 1ff4000000018ed5
[   12.911087][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000908a2bc
[   12.911313][   T12] RBP: ff1100000df8c000 R08: 1fe2200001211459 R09: ff11000001aed1d0
[   12.911536][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.911759][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.912011][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   12.912263][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.912458][   T12] CR2: 00007f2c99fd5000 CR3: 000000003174d002 CR4: 0000000000771ef0
[   12.912683][   T12] PKRU: 55555554
[   12.912824][   T12] Call Trace:
[   12.912974][   T12]  <TASK>
[   12.913083][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.913281][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.913476][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.913643][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.913823][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   12.914037][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.914205][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.914372][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.914538][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.914707][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.914899][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.915064][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.915232][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.915400][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.915565][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.915732][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.915934][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.916104][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.916299][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.916464][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.916635][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.916815][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.916996][   T12]  kthread (kernel/kthread.c:436)
[   12.917133][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.917329][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.917498][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.917666][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.917884][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.918050][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.918217][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.920813][   T12] ------------[ cut here ]------------
| [   12.920980][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   12.921257][   T12] Modules linked in:
| [   12.921708][   T12] Tainted: [W]=WARN
[   12.921864][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.922059][   T12] Workqueue: netns cleanup_net
[   12.922230][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.922430][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.922921][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   12.923131][   T12] RAX: 00000000ffffffa6 RBX: ff1100000931c740 RCX: 1ff4000000018ed5
[   12.923350][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000931c7fc
[   12.923572][   T12] RBP: ff1100000feb4000 R08: 1fe2200001263901 R09: ff11000001aed1d0
[   12.923804][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.924038][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.924262][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   12.924515][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.924712][   T12] CR2: 00007f2c99fd5000 CR3: 000000003174d002 CR4: 0000000000771ef0
[   12.924955][   T12] PKRU: 55555554
[   12.925090][   T12] Call Trace:
[   12.925225][   T12]  <TASK>
[   12.925334][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.925533][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.925723][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.925912][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.926081][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   12.926282][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.926450][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.926616][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.926791][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.926974][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.927143][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   12.927312][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.927480][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   12.927647][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.927821][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.928002][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.928169][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.928335][   T12]  process_one_work (kernel/workqueue.c:3314)
[   12.928505][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.928676][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.928867][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.929038][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.929204][   T12]  kthread (kernel/kthread.c:436)
[   12.929343][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.929537][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.929706][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.929899][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.930096][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.930262][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.930429][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.939013][  T217] ------------[ cut here ]------------
| [   12.939158][  T217] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/217
| [   12.939386][  T217] Modules linked in:
| [   12.939754][  T217] Tainted: [W]=WARN
[   12.939864][  T217] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.940027][  T217] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.940199][  T217] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.940682][  T217] RSP: 0018:ffa0000000917a80 EFLAGS: 00010286
[   12.940859][  T217] RAX: 00000000ffffffa6 RBX: ff1100000a2b7700 RCX: 1ff4000000122f16
[   12.941054][  T217] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2b77bc
[   12.941250][  T217] RBP: ff11000008d49000 R08: 1fe2200001456ef9 R09: ff1100000f562e80
[   12.941443][  T217] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.941644][  T217] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008d49000
[   12.941851][  T217] FS:  00007f7f3d70b840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   12.942081][  T217] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.942246][  T217] CR2: 00007f7f3d90cc20 CR3: 0000000004aa1003 CR4: 0000000000771ef0
[   12.942446][  T217] PKRU: 55555554
[   12.942546][  T217] Call Trace:
[   12.942644][  T217]  <TASK>
[   12.942712][  T217]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.942857][  T217]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.942989][  T217]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.943089][  T217]  register_netdevice (net/core/dev.c:11488)
[   12.943224][  T217]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.943390][  T217]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.943524][  T217]  register_netdev (net/core/dev.c:11552)
[   12.943655][  T217]  loopback_net_init (drivers/net/loopback.c:218)
[   12.943789][  T217]  ops_init (net/core/net_namespace.c:137)
[   12.943896][  T217]  setup_net (net/core/net_namespace.c:446)
[   12.943996][  T217]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.944126][  T217]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.944259][  T217]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.944391][  T217]  copy_net_ns (net/core/net_namespace.c:579)
[   12.944524][  T217]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.944659][  T217]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.944794][  T217]  ksys_unshare (kernel/fork.c:3243)
[   12.944935][  T217]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.945068][  T217]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.945202][  T217]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.945335][  T217]  ? __ia32_sys_open (fs/open.c:1374)
[   12.945468][  T217]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.945600][  T217]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.945730][  T217]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.945871][  T217]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.946003][  T217]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.946135][  T217]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.946299][  T217] RIP: 0033:0x7f7f3d9cdbcb
[   12.946437][  T217] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.946915][  T217] RSP: 002b:00007ffd76f54b38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.947116][  T217] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7f3d9cdbcb
[   12.947314][  T217] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.947508][  T217] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.947702][  T217] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd76f56d60
[   12.947907][  T217] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd76f57875
| [   12.951770][  T217] ------------[ cut here ]------------
| [   12.951923][  T217] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/217
| [   12.952154][  T217] Modules linked in:
| [   12.952521][  T217] Tainted: [W]=WARN
[   12.952619][  T217] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.952786][  T217] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.952961][  T217] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.953426][  T217] RSP: 0018:ffa0000000917918 EFLAGS: 00010286
[   12.953590][  T217] RAX: 00000000ffffffa6 RBX: ff1100000c055540 RCX: 1ff4000000122ee9
[   12.953788][  T217] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c0555fc
[   12.953992][  T217] RBP: ff11000009274000 R08: 1fe220000180aac1 R09: ff1100000f562e80
[   12.954187][  T217] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.954383][  T217] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009274000
[   12.954579][  T217] FS:  00007f7f3d70b840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   12.954816][  T217] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.954985][  T217] CR2: 00007f7f3d90cc20 CR3: 0000000004aa1003 CR4: 0000000000771ef0
[   12.955182][  T217] PKRU: 55555554
[   12.955280][  T217] Call Trace:
[   12.955378][  T217]  <TASK>
[   12.955446][  T217]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.955577][  T217]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.955710][  T217]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.955816][  T217]  register_netdevice (net/core/dev.c:11488)
[   12.955953][  T217]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.956116][  T217]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.956248][  T217]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.956379][  T217]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.956510][  T217]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.956645][  T217]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.956777][  T217]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.956920][  T217]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   12.957053][  T217]  ops_init (net/core/net_namespace.c:137)
[   12.957153][  T217]  setup_net (net/core/net_namespace.c:446)
[   12.957253][  T217]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.957384][  T217]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.957516][  T217]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.957647][  T217]  copy_net_ns (net/core/net_namespace.c:579)
[   12.957783][  T217]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.957923][  T217]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.958054][  T217]  ksys_unshare (kernel/fork.c:3243)
[   12.958183][  T217]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.958313][  T217]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.958443][  T217]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.958573][  T217]  ? __ia32_sys_open (fs/open.c:1374)
[   12.958706][  T217]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.958846][  T217]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.958977][  T217]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.959107][  T217]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.959237][  T217]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.959366][  T217]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.959533][  T217] RIP: 0033:0x7f7f3d9cdbcb
[   12.959670][  T217] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.960143][  T217] RSP: 002b:00007ffd76f54b38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.960338][  T217] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7f3d9cdbcb
[   12.960535][  T217] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.960731][  T217] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.960936][  T217] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd76f56d60
[   12.961130][  T217] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd76f57875
| [   12.971390][  T217] ------------[ cut here ]------------
| [   12.971531][  T217] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/217
| [   12.971763][  T217] Modules linked in:
| [   12.972154][  T217] Tainted: [W]=WARN
[   12.972254][  T217] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.972418][  T217] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.972592][  T217] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.973072][  T217] RSP: 0018:ffa00000009178f8 EFLAGS: 00010286
[   12.973238][  T217] RAX: 00000000ffffffa6 RBX: ff1100000931c900 RCX: 1ff4000000122ee5
[   12.973433][  T217] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000931c9bc
[   12.973628][  T217] RBP: ff11000002529000 R08: 1fe2200001263939 R09: ff1100000f562e80
[   12.973831][  T217] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.974034][  T217] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002529000
[   12.974232][  T217] FS:  00007f7f3d70b840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   12.974465][  T217] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.974631][  T217] CR2: 00007f7f3d90cc20 CR3: 0000000004aa1003 CR4: 0000000000771ef0
[   12.974838][  T217] PKRU: 55555554
[   12.974936][  T217] Call Trace:
[   12.975034][  T217]  <TASK>
[   12.975103][  T217]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.975236][  T217]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.975370][  T217]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.975471][  T217]  register_netdevice (net/core/dev.c:11488)
[   12.975606][  T217]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.975772][  T217]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.975914][  T217]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.976048][  T217]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.976180][  T217]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.976313][  T217]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.976446][  T217]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.976581][  T217]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   12.976716][  T217]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.976863][  T217]  vti_init_net (net/ipv4/ip_vti.c:517)
[   12.976995][  T217]  ops_init (net/core/net_namespace.c:137)
[   12.977097][  T217]  setup_net (net/core/net_namespace.c:446)
[   12.977199][  T217]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.977330][  T217]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.977464][  T217]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.977599][  T217]  copy_net_ns (net/core/net_namespace.c:579)
[   12.977733][  T217]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.977881][  T217]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.978015][  T217]  ksys_unshare (kernel/fork.c:3243)
[   12.978148][  T217]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.978281][  T217]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.978415][  T217]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.978548][  T217]  ? __ia32_sys_open (fs/open.c:1374)
[   12.978682][  T217]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.978819][  T217]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.978957][  T217]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.979090][  T217]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.979223][  T217]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.979354][  T217]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.979519][  T217] RIP: 0033:0x7f7f3d9cdbcb
[   12.979657][  T217] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.980134][  T217] RSP: 002b:00007ffd76f54b38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.980334][  T217] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7f3d9cdbcb
[   12.980534][  T217] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.980732][  T217] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.980944][  T217] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd76f56d60
[   12.981143][  T217] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd76f57875
| [   12.985291][  T217] ------------[ cut here ]------------
| [   12.985454][  T217] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/217
| [   12.985680][  T217] Modules linked in:
| [   12.986574][  T217] Tainted: [W]=WARN
[   12.986675][  T217] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.986900][  T217] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.987134][  T217] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.987595][  T217] RSP: 0018:ffa0000000917a78 EFLAGS: 00010286
[   12.987759][  T217] RAX: 00000000ffffffa6 RBX: ff1100000931d540 RCX: 1ff4000000122f15
[   12.988013][  T217] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000931d5fc
[   12.988208][  T217] RBP: ff110000082b4000 R08: 1fe2200001263ac1 R09: ff1100000f562e80
[   12.988401][  T217] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.988594][  T217] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000082b4000
[   12.988792][  T217] FS:  00007f7f3d70b840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   12.989078][  T217] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.989242][  T217] CR2: 00007f7f3d90cc20 CR3: 0000000004aa1003 CR4: 0000000000771ef0
[   12.989437][  T217] PKRU: 55555554
[   12.989534][  T217] Call Trace:
[   12.989632][  T217]  <TASK>
[   12.989700][  T217]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.989893][  T217]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.990023][  T217]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.990122][  T217]  register_netdevice (net/core/dev.c:11488)
[   12.990253][  T217]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.990413][  T217]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.990545][  T217]  register_netdev (net/core/dev.c:11552)
[   12.990673][  T217]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   12.990812][  T217]  ops_init (net/core/net_namespace.c:137)
[   12.990966][  T217]  setup_net (net/core/net_namespace.c:446)
[   12.991066][  T217]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.991195][  T217]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.991326][  T217]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.991460][  T217]  copy_net_ns (net/core/net_namespace.c:579)
[   12.991592][  T217]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.991727][  T217]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.991920][  T217]  ksys_unshare (kernel/fork.c:3243)
[   12.992049][  T217]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.992180][  T217]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.992310][  T217]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.992441][  T217]  ? __ia32_sys_open (fs/open.c:1374)
[   12.992572][  T217]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.992701][  T217]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.992892][  T217]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.993021][  T217]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.993149][  T217]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.993277][  T217]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.993436][  T217] RIP: 0033:0x7f7f3d9cdbcb
[   12.993570][  T217] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.994096][  T217] RSP: 002b:00007ffd76f54b38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.994292][  T217] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7f3d9cdbcb
[   12.994486][  T217] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.994682][  T217] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.994939][  T217] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd76f56d60
[   12.995133][  T217] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd76f57875
| [   13.001165][  T217] ------------[ cut here ]------------
| [   13.001300][  T217] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/217
| [   13.001524][  T217] Modules linked in:
| [   13.002403][  T217] Tainted: [W]=WARN
[   13.002503][  T217] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.002667][  T217] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.002900][  T217] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.003418][  T217] RSP: 0018:ffa0000000917a68 EFLAGS: 00010286
[   13.003585][  T217] RAX: 00000000ffffffa6 RBX: ff11000009441a80 RCX: 1ff4000000122f13
[   13.003785][  T217] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009441b3c
[   13.004086][  T217] RBP: ff11000008af4000 R08: 1fe2200001288369 R09: ff1100000f562e80
[   13.004282][  T217] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.004475][  T217] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008af4000
[   13.004674][  T217] FS:  00007f7f3d70b840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   13.004961][  T217] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.005124][  T217] CR2: 00007f7f3d90cc20 CR3: 0000000004aa1003 CR4: 0000000000771ef0
[   13.005320][  T217] PKRU: 55555554
[   13.005420][  T217] Call Trace:
[   13.005519][  T217]  <TASK>
[   13.005587][  T217]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.005721][  T217]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.005911][  T217]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.006012][  T217]  register_netdevice (net/core/dev.c:11488)
[   13.006145][  T217]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.006310][  T217]  register_netdev (net/core/dev.c:11552)
[   13.006441][  T217]  sit_init_net (net/ipv6/sit.c:1860)
[   13.006575][  T217]  ops_init (net/core/net_namespace.c:137)
[   13.006679][  T217]  setup_net (net/core/net_namespace.c:446)
[   13.006781][  T217]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.006967][  T217]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.007099][  T217]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.007232][  T217]  copy_net_ns (net/core/net_namespace.c:579)
[   13.007362][  T217]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.007497][  T217]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.007628][  T217]  ksys_unshare (kernel/fork.c:3243)
[   13.007760][  T217]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.007951][  T217]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.008082][  T217]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.008214][  T217]  ? __ia32_sys_open (fs/open.c:1374)
[   13.008347][  T217]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.008476][  T217]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.008606][  T217]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.008734][  T217]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.008923][  T217]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.009054][  T217]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.009215][  T217] RIP: 0033:0x7f7f3d9cdbcb
[   13.009350][  T217] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.009815][  T217] RSP: 002b:00007ffd76f54b38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   13.010066][  T217] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7f3d9cdbcb
[   13.010259][  T217] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.010451][  T217] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.010643][  T217] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd76f56d60
[   13.010893][  T217] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd76f57875
| [   13.015851][  T217] ------------[ cut here ]------------
| [   13.015991][  T217] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/217
| [   13.016218][  T217] Modules linked in:
| [   13.016585][  T217] Tainted: [W]=WARN
[   13.016683][  T217] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.016857][  T217] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.017027][  T217] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.017495][  T217] RSP: 0018:ffa0000000917a78 EFLAGS: 00010286
[   13.017659][  T217] RAX: 00000000ffffffa6 RBX: ff11000005361000 RCX: 1ff4000000122f15
[   13.017863][  T217] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000053610bc
[   13.018057][  T217] RBP: ff1100000a551000 R08: 1fe2200000a6c219 R09: ff1100000f562e80
[   13.018250][  T217] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.018446][  T217] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a551000
[   13.018644][  T217] FS:  00007f7f3d70b840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   13.018883][  T217] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.019048][  T217] CR2: 00007f7f3d90cc20 CR3: 0000000004aa1003 CR4: 0000000000771ef0
[   13.019246][  T217] PKRU: 55555554
[   13.019344][  T217] Call Trace:
[   13.019442][  T217]  <TASK>
[   13.019510][  T217]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.019641][  T217]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.019771][  T217]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.019878][  T217]  register_netdevice (net/core/dev.c:11488)
[   13.020009][  T217]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.020174][  T217]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.020308][  T217]  register_netdev (net/core/dev.c:11552)
[   13.020439][  T217]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   13.020569][  T217]  ops_init (net/core/net_namespace.c:137)
[   13.020670][  T217]  setup_net (net/core/net_namespace.c:446)
[   13.020769][  T217]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.021406][  T217]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.021541][  T217]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.021675][  T217]  copy_net_ns (net/core/net_namespace.c:579)
[   13.021811][  T217]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.022000][  T217]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.022133][  T217]  ksys_unshare (kernel/fork.c:3243)
[   13.022263][  T217]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.022393][  T217]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.022526][  T217]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.022657][  T217]  ? __ia32_sys_open (fs/open.c:1374)
[   13.022794][  T217]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.022981][  T217]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.023165][  T217]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.023294][  T217]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.023424][  T217]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.023555][  T217]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.023717][  T217] RIP: 0033:0x7f7f3d9cdbcb
[   13.023915][  T217] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   13.024376][  T217] RSP: 002b:00007ffd76f54b38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   13.024575][  T217] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7f3d9cdbcb
[   13.024770][  T217] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.025023][  T217] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.025218][  T217] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd76f56d60
[   13.025415][  T217] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd76f57875
| [   13.044535][   T12] ------------[ cut here ]------------
| [   13.044670][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   13.044936][   T12] Modules linked in:
| [   13.045306][   T12] Tainted: [W]=WARN
[   13.045393][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.045542][   T12] Workqueue: netns cleanup_net
[   13.045664][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.045820][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.046249][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.046396][   T12] RAX: 00000000ffffffa6 RBX: ff1100000908ba80 RCX: 1ff4000000018eed
[   13.046576][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000908bb3c
[   13.046754][   T12] RBP: ff11000009d74000 R08: 1fe2200001211769 R09: ff11000001aed1d0
[   13.046956][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.047130][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.047306][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   13.047512][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.047657][   T12] CR2: 00007f29638a5f98 CR3: 000000003174d006 CR4: 0000000000771ef0
[   13.047839][   T12] PKRU: 55555554
[   13.047926][   T12] Call Trace:
[   13.048013][   T12]  <TASK>
[   13.048075][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.048222][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.048369][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.048487][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.048604][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.048721][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.048845][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   13.048962][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.049082][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.049198][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.049318][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.049435][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.049554][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.049672][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.049791][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.049915][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.050034][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.050152][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.050277][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.050397][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.050514][   T12]  kthread (kernel/kthread.c:436)
[   13.050603][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.050747][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.050872][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.050990][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.051135][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.051256][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.051372][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.054106][   T12] ------------[ cut here ]------------
| [   13.054238][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   13.054475][   T12] Modules linked in:
| [   13.054851][   T12] Tainted: [W]=WARN
[   13.054944][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.055090][   T12] Workqueue: netns cleanup_net
[   13.055212][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.055363][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.055784][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.055940][   T12] RAX: 00000000ffffffa6 RBX: ff110000093ab8c0 RCX: 1ff4000000018eed
[   13.056114][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000093ab97c
[   13.056291][   T12] RBP: ff110000050d1000 R08: 1fe2200001275731 R09: ff11000001aed1d0
[   13.056466][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.056639][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.056817][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   13.057026][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.057175][   T12] CR2: 00007f29638a5f98 CR3: 000000003174d006 CR4: 0000000000771ef0
[   13.057350][   T12] PKRU: 55555554
[   13.057437][   T12] Call Trace:
[   13.057525][   T12]  <TASK>
[   13.057588][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.057737][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.057893][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.058011][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.058130][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.058247][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.058364][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   13.058483][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.058608][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.058723][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.058851][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.058971][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.059088][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.059206][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.059322][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.059441][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.059573][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.059690][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.059814][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.059943][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.060060][   T12]  kthread (kernel/kthread.c:436)
[   13.060148][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.060292][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.060409][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.060526][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.060678][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.060798][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.060920][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.063314][   T12] ------------[ cut here ]------------
| [   13.063445][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   13.063677][   T12] Modules linked in:
| [   13.064322][   T12] Tainted: [W]=WARN
[   13.064411][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.064559][   T12] Workqueue: netns cleanup_net
[   13.064680][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.064899][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.065456][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.065622][   T12] RAX: 00000000ffffffa6 RBX: ff110000093aba80 RCX: 1ff4000000018eed
[   13.065804][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000093abb3c
[   13.066032][   T12] RBP: ff11000008b91000 R08: 1fe2200001275769 R09: ff11000001aed1d0
[   13.066206][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.066383][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.066558][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   13.066761][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.066972][   T12] CR2: 00007f29638a5f98 CR3: 000000003174d006 CR4: 0000000000771ef0
[   13.067147][   T12] PKRU: 55555554
[   13.067237][   T12] Call Trace:
[   13.067324][   T12]  <TASK>
[   13.067386][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.067535][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.067677][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.067800][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.067965][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.068087][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.068205][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   13.068324][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.068442][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.068557][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.068676][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.068795][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.068957][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.069076][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.069193][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.069311][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.069430][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.069546][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.069667][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.069791][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.069955][   T12]  kthread (kernel/kthread.c:436)
[   13.070043][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.070189][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.070306][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.070423][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.070568][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.070684][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.070804][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.074964][   T12] ------------[ cut here ]------------
| [   13.075166][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   13.075411][   T12] Modules linked in:
| [   13.075761][   T12] Tainted: [W]=WARN
[   13.075868][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.076013][   T12] Workqueue: netns cleanup_net
[   13.076134][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.076295][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.076706][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.076930][   T12] RAX: 00000000ffffffa6 RBX: ff110000093aa200 RCX: 1ff4000000018eed
[   13.077192][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000093aa2bc
[   13.077366][   T12] RBP: ff1100000a4a4000 R08: 1fe2200001275459 R09: ff11000001aed1d0
[   13.077539][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   13.077711][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.077939][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   13.078141][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.078286][   T12] CR2: 00007f29638a5f98 CR3: 000000003174d006 CR4: 0000000000771ef0
[   13.078464][   T12] PKRU: 55555554
[   13.078550][   T12] Call Trace:
[   13.078638][   T12]  <TASK>
[   13.078699][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.078898][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.079043][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.079159][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.079276][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.079392][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.079509][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   13.079626][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.079743][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.079910][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.080029][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.080145][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.080260][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.080377][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.080498][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.080616][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.080738][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.080904][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.081023][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.081144][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.081260][   T12]  kthread (kernel/kthread.c:436)
[   13.081347][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.081491][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.081615][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.081732][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.081928][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.082047][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.082164][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.084552][   T12] ------------[ cut here ]------------
| [   13.084675][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   13.084923][   T12] Modules linked in:
| [   13.085283][   T12] Tainted: [W]=WARN
[   13.085372][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.085527][   T12] Workqueue: netns cleanup_net
[   13.085648][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.085805][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.086225][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   13.086375][   T12] RAX: 00000000ffffffa6 RBX: ff11000005360900 RCX: 1ff4000000018eed
[   13.086549][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000053609bc
[   13.086724][   T12] RBP: ff1100000242c000 R08: 1fe2200000a6c139 R09: ff11000001aed1d0
[   13.086906][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.087083][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.087264][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   13.087473][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.087617][   T12] CR2: 00007f7f3d7d8574 CR3: 000000003174d004 CR4: 0000000000771ef0
[   13.087801][   T12] PKRU: 55555554
[   13.087894][   T12] Call Trace:
[   13.087983][   T12]  <TASK>
[   13.088044][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.088194][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.088338][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   13.088457][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   13.088574][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   13.088691][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   13.088812][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   13.088937][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   13.089057][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.089179][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.089299][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.089418][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.089537][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.089656][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.089773][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.089904][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.090026][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.090145][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.090268][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.090391][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.090507][   T12]  kthread (kernel/kthread.c:436)
[   13.090597][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.090744][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.090873][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.090990][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.091137][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.091255][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.091372][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.104830][   T12] ------------[ cut here ]------------
| [   13.104971][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   13.105212][   T12] Modules linked in:
| [   13.105585][   T12] Tainted: [W]=WARN
[   13.105675][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.105828][   T12] Workqueue: netns cleanup_net
[   13.106004][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.106157][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.106632][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   13.106786][   T12] RAX: 00000000ffffffa6 RBX: ff11000005360200 RCX: 1ff4000000018ed5
[   13.107019][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000053602bc
[   13.107196][   T12] RBP: ff11000008e24000 R08: 1fe2200000a6c059 R09: ff11000001aed1d0
[   13.107371][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.107547][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.107725][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   13.107986][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.108133][   T12] CR2: 00007f7f3d7d8574 CR3: 000000003174d004 CR4: 0000000000771ef0
[   13.108315][   T12] PKRU: 55555554
[   13.108405][   T12] Call Trace:
[   13.108493][   T12]  <TASK>
[   13.108555][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.108751][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.108955][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   13.109076][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   13.109195][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   13.109314][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   13.109434][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   13.109555][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   13.109676][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   13.109803][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.109975][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   13.110095][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.110212][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   13.110331][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.110449][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.110570][   T12]  process_one_work (kernel/workqueue.c:3314)
[   13.110693][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.110815][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.110987][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.111111][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.111229][   T12]  kthread (kernel/kthread.c:436)
[   13.111319][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.111467][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.111588][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.111707][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.111910][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.112029][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.112152][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.126692][  T218] ------------[ cut here ]------------
| [   13.126881][  T218] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/218
| [   13.127154][  T218] Modules linked in:
| [   13.127617][  T218] Tainted: [W]=WARN
[   13.127762][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.128046][  T218] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.128258][  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
[   13.128763][  T218] RSP: 0018:ffa00000009c7a80 EFLAGS: 00010286
[   13.128995][  T218] RAX: 00000000ffffffa6 RBX: ff1100000cf91a80 RCX: 1ff4000000138f16
[   13.129234][  T218] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf91b3c
[   13.129474][  T218] RBP: ff110000089b1000 R08: 1fe22000019f2369 R09: ff1100000f560b80
[   13.129712][  T218] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.129973][  T218] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000089b1000
[   13.130217][  T218] FS:  00007fbf9ab08840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   13.130493][  T218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.130701][  T218] CR2: 00007fbf9ad127d0 CR3: 000000000bd3a004 CR4: 0000000000771ef0
[   13.130966][  T218] PKRU: 55555554
[   13.131110][  T218] Call Trace:
[   13.131254][  T218]  <TASK>
[   13.131368][  T218]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.131547][  T218]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.131725][  T218]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.131896][  T218]  register_netdevice (net/core/dev.c:11488)
[   13.132079][  T218]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.132292][  T218]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.132473][  T218]  register_netdev (net/core/dev.c:11552)
[   13.132652][  T218]  loopback_net_init (drivers/net/loopback.c:218)
[   13.132854][  T218]  ops_init (net/core/net_namespace.c:137)
[   13.133005][  T218]  setup_net (net/core/net_namespace.c:446)
[   13.133152][  T218]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.133327][  T218]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.133509][  T218]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.133688][  T218]  copy_net_ns (net/core/net_namespace.c:579)
[   13.133886][  T218]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.134068][  T218]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.134246][  T218]  ksys_unshare (kernel/fork.c:3243)
[   13.134425][  T218]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.134603][  T218]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.134790][  T218]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.134984][  T218]  ? __ia32_sys_open (fs/open.c:1374)
[   13.135165][  T218]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.135343][  T218]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.135521][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.135699][  T218]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.135899][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.136082][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.136296][  T218] RIP: 0033:0x7fbf9adcabcb
[   13.136480][  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
[   13.137004][  T218] RSP: 002b:00007ffed9efa228 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.137251][  T218] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbf9adcabcb
[   13.137492][  T218] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.137731][  T218] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.137991][  T218] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed9efc450
[   13.138232][  T218] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed9efd875
| [   13.142837][  T218] ------------[ cut here ]------------
| [   13.143014][  T218] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/218
| [   13.143287][  T218] Modules linked in:
| [   13.143741][  T218] Tainted: [W]=WARN
[   13.143906][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.144112][  T218] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.144333][  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
[   13.144859][  T218] RSP: 0018:ffa00000009c7918 EFLAGS: 00010286
[   13.145070][  T218] RAX: 00000000ffffffa6 RBX: ff1100000c9eba80 RCX: 1ff4000000138ee9
[   13.145311][  T218] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c9ebb3c
[   13.145551][  T218] RBP: ff1100000528c000 R08: 1fe220000193d769 R09: ff1100000f560b80
[   13.145795][  T218] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.146045][  T218] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000528c000
[   13.146286][  T218] FS:  00007fbf9ab08840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   13.146565][  T218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.146777][  T218] CR2: 00007fbf9ad127d0 CR3: 000000000bd3a004 CR4: 0000000000771ef0
[   13.147040][  T218] PKRU: 55555554
[   13.147184][  T218] Call Trace:
[   13.147326][  T218]  <TASK>
[   13.147439][  T218]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.147620][  T218]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.147802][  T218]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.147961][  T218]  register_netdevice (net/core/dev.c:11488)
[   13.148139][  T218]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.148347][  T218]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.148526][  T218]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   13.148704][  T218]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   13.148905][  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))
[   13.149084][  T218]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   13.149262][  T218]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   13.149443][  T218]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   13.149622][  T218]  ops_init (net/core/net_namespace.c:137)
[   13.149770][  T218]  setup_net (net/core/net_namespace.c:446)
[   13.149941][  T218]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.150117][  T218]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.150297][  T218]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.150477][  T218]  copy_net_ns (net/core/net_namespace.c:579)
[   13.150656][  T218]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.150859][  T218]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.151037][  T218]  ksys_unshare (kernel/fork.c:3243)
[   13.151215][  T218]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.151393][  T218]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.151571][  T218]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.151749][  T218]  ? __ia32_sys_open (fs/open.c:1374)
[   13.151948][  T218]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.152124][  T218]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.152300][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.152477][  T218]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.152654][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.152857][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.153065][  T218] RIP: 0033:0x7fbf9adcabcb
[   13.153246][  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
[   13.153750][  T218] RSP: 002b:00007ffed9efa228 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.154013][  T218] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbf9adcabcb
[   13.154250][  T218] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.154488][  T218] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.154726][  T218] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed9efc450
[   13.154982][  T218] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed9efd875
| [   13.159184][  T218] ------------[ cut here ]------------
| [   13.159362][  T218] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/218
| [   13.159638][  T218] Modules linked in:
| [   13.160115][  T218] Tainted: [W]=WARN
[   13.160261][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.160471][  T218] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.160694][  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
[   13.161229][  T218] RSP: 0018:ffa00000009c78f8 EFLAGS: 00010286
[   13.161444][  T218] RAX: 00000000ffffffa6 RBX: ff1100000cfb4200 RCX: 1ff4000000138ee5
[   13.161690][  T218] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfb42bc
[   13.161951][  T218] RBP: ff1100000e42c000 R08: 1fe22000019f6859 R09: ff1100000f560b80
[   13.162193][  T218] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.162433][  T218] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e42c000
[   13.162678][  T218] FS:  00007fbf9ab08840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   13.162974][  T218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.163185][  T218] CR2: 00007fbf9ad127d0 CR3: 000000000bd3a004 CR4: 0000000000771ef0
[   13.163431][  T218] PKRU: 55555554
[   13.163577][  T218] Call Trace:
[   13.163720][  T218]  <TASK>
[   13.163859][  T218]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.164043][  T218]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.164223][  T218]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.164371][  T218]  register_netdevice (net/core/dev.c:11488)
[   13.164551][  T218]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.164759][  T218]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.164959][  T218]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   13.165137][  T218]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   13.165318][  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))
[   13.165498][  T218]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   13.165679][  T218]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   13.165879][  T218]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   13.166058][  T218]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   13.166239][  T218]  vti_init_net (net/ipv4/ip_vti.c:517)
[   13.166420][  T218]  ops_init (net/core/net_namespace.c:137)
[   13.166570][  T218]  setup_net (net/core/net_namespace.c:446)
[   13.166721][  T218]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.166916][  T218]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.167097][  T218]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.167279][  T218]  copy_net_ns (net/core/net_namespace.c:579)
[   13.167460][  T218]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.167641][  T218]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.167828][  T218]  ksys_unshare (kernel/fork.c:3243)
[   13.168024][  T218]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.168204][  T218]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.168383][  T218]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.168562][  T218]  ? __ia32_sys_open (fs/open.c:1374)
[   13.168742][  T218]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.168940][  T218]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.169118][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.169300][  T218]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.169479][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.169658][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.169885][  T218] RIP: 0033:0x7fbf9adcabcb
[   13.170069][  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
[   13.170583][  T218] RSP: 002b:00007ffed9efa228 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.170849][  T218] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbf9adcabcb
[   13.171092][  T218] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.171333][  T218] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.171578][  T218] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed9efc450
[   13.171826][  T218] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed9efd875
| [   13.176627][  T218] ------------[ cut here ]------------
| [   13.176809][  T218] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/218
| [   13.177095][  T218] Modules linked in:
| [   13.177551][  T218] Tainted: [W]=WARN
[   13.177697][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.177927][  T218] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.178143][  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
[   13.178648][  T218] RSP: 0018:ffa00000009c7a78 EFLAGS: 00010286
[   13.178884][  T218] RAX: 00000000ffffffa6 RBX: ff1100000cf918c0 RCX: 1ff4000000138f15
[   13.179125][  T218] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf9197c
[   13.179363][  T218] RBP: ff1100000f36c000 R08: 1fe22000019f2331 R09: ff1100000f560b80
[   13.179603][  T218] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.179866][  T218] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f36c000
[   13.180108][  T218] FS:  00007fbf9ab08840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   13.180383][  T218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.180593][  T218] CR2: 00007fbf9ad127d0 CR3: 000000000bd3a004 CR4: 0000000000771ef0
[   13.180857][  T218] PKRU: 55555554
[   13.181002][  T218] Call Trace:
[   13.181150][  T218]  <TASK>
[   13.181266][  T218]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.181444][  T218]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.181621][  T218]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.181770][  T218]  register_netdevice (net/core/dev.c:11488)
[   13.181974][  T218]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.182185][  T218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.182366][  T218]  register_netdev (net/core/dev.c:11552)
[   13.182545][  T218]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   13.182724][  T218]  ops_init (net/core/net_namespace.c:137)
[   13.182892][  T218]  setup_net (net/core/net_namespace.c:446)
[   13.183042][  T218]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.183218][  T218]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.183397][  T218]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.183580][  T218]  copy_net_ns (net/core/net_namespace.c:579)
[   13.183759][  T218]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.183962][  T218]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.184141][  T218]  ksys_unshare (kernel/fork.c:3243)
[   13.184319][  T218]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.184497][  T218]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.184677][  T218]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.184872][  T218]  ? __ia32_sys_open (fs/open.c:1374)
[   13.185051][  T218]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.185227][  T218]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.185402][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.185578][  T218]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.185754][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.185951][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.186165][  T218] RIP: 0033:0x7fbf9adcabcb
[   13.186349][  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
[   13.186891][  T218] RSP: 002b:00007ffed9efa228 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.187138][  T218] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbf9adcabcb
[   13.187384][  T218] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.187626][  T218] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.187885][  T218] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed9efc450
[   13.188135][  T218] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed9efd875
| [   13.195139][  T218] ------------[ cut here ]------------
| [   13.195317][  T218] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/218
| [   13.195591][  T218] Modules linked in:
| [   13.196068][  T218] Tainted: [W]=WARN
[   13.196214][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.196421][  T218] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.196637][  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
[   13.197232][  T218] RSP: 0018:ffa00000009c7a68 EFLAGS: 00010286
[   13.197497][  T218] RAX: 00000000ffffffa6 RBX: ff11000006041c40 RCX: 1ff4000000138f13
[   13.197797][  T218] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000006041cfc
[   13.198106][  T218] RBP: ff11000007f19000 R08: 1fe2200000c083a1 R09: ff1100000f560b80
[   13.198411][  T218] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.198705][  T218] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007f19000
[   13.199022][  T218] FS:  00007fbf9ab08840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   13.199355][  T218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.199616][  T218] CR2: 00007fbf9ad127d0 CR3: 000000000bd3a004 CR4: 0000000000771ef0
[   13.199928][  T218] PKRU: 55555554
[   13.200126][  T218] Call Trace:
[   13.200324][  T218]  <TASK>
[   13.200491][  T218]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.200724][  T218]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.200978][  T218]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.201179][  T218]  register_netdevice (net/core/dev.c:11488)
[   13.201426][  T218]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.201755][  T218]  register_netdev (net/core/dev.c:11552)
[   13.202061][  T218]  sit_init_net (net/ipv6/sit.c:1860)
[   13.202322][  T218]  ops_init (net/core/net_namespace.c:137)
[   13.202525][  T218]  setup_net (net/core/net_namespace.c:446)
[   13.202734][  T218]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.202988][  T218]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.203220][  T218]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.203454][  T218]  copy_net_ns (net/core/net_namespace.c:579)
[   13.203686][  T218]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.203942][  T218]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.204176][  T218]  ksys_unshare (kernel/fork.c:3243)
[   13.204408][  T218]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.204639][  T218]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.204896][  T218]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.205132][  T218]  ? __ia32_sys_open (fs/open.c:1374)
[   13.205365][  T218]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.205570][  T218]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.205747][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.205947][  T218]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.206125][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.206305][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.206515][  T218] RIP: 0033:0x7fbf9adcabcb
[   13.206699][  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
[   13.207228][  T218] RSP: 002b:00007ffed9efa228 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.207471][  T218] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbf9adcabcb
[   13.207710][  T218] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.207965][  T218] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.208208][  T218] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed9efc450
[   13.208450][  T218] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed9efd875
| [   13.221921][  T218] ------------[ cut here ]------------
| [   13.222098][  T218] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/218
| [   13.222372][  T218] Modules linked in:
| [   13.222849][  T218] Tainted: [W]=WARN
[   13.222995][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.223208][  T218] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.223425][  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
[   13.223954][  T218] RSP: 0018:ffa00000009c7a78 EFLAGS: 00010286
[   13.224168][  T218] RAX: 00000000ffffffa6 RBX: ff1100000dbf3380 RCX: 1ff4000000138f15
[   13.224408][  T218] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbf343c
[   13.224649][  T218] RBP: ff1100000feb1000 R08: 1fe2200001b7e689 R09: ff1100000f560b80
[   13.224911][  T218] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.225153][  T218] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000feb1000
[   13.225399][  T218] FS:  00007fbf9ab08840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   13.225673][  T218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.225907][  T218] CR2: 00007fbf9ad127d0 CR3: 000000000bd3a004 CR4: 0000000000771ef0
[   13.226152][  T218] PKRU: 55555554
[   13.226296][  T218] Call Trace:
[   13.226441][  T218]  <TASK>
[   13.226556][  T218]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.226736][  T218]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.226966][  T218]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.227137][  T218]  register_netdevice (net/core/dev.c:11488)
[   13.227323][  T218]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.227536][  T218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.227721][  T218]  register_netdev (net/core/dev.c:11552)
[   13.227927][  T218]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   13.228112][  T218]  ops_init (net/core/net_namespace.c:137)
[   13.228263][  T218]  setup_net (net/core/net_namespace.c:446)
[   13.228413][  T218]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   13.228593][  T218]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   13.228778][  T218]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   13.228990][  T218]  copy_net_ns (net/core/net_namespace.c:579)
[   13.229171][  T218]  create_new_namespaces (kernel/nsproxy.c:132)
[   13.229354][  T218]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   13.229536][  T218]  ksys_unshare (kernel/fork.c:3243)
[   13.229716][  T218]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.229919][  T218]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   13.230101][  T218]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   13.230299][  T218]  ? __ia32_sys_open (fs/open.c:1374)
[   13.230482][  T218]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   13.230658][  T218]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.230857][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.231037][  T218]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.231215][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.231393][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.231600][  T218] RIP: 0033:0x7fbf9adcabcb
[   13.231792][  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
[   13.232331][  T218] RSP: 002b:00007ffed9efa228 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   13.232575][  T218] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fbf9adcabcb
[   13.232826][  T218] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   13.233078][  T218] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   13.233319][  T218] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed9efc450
[   13.233558][  T218] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffed9efd875
| [   13.330577][  T221] ------------[ cut here ]------------
| [   13.330754][  T221] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/221
| [   13.331015][  T221] Modules linked in:
| [   13.331516][  T221] Tainted: [W]=WARN
[   13.331620][  T221] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.331795][  T221] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.331981][  T221] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.332464][  T221] RSP: 0018:ffa00000009f6e30 EFLAGS: 00010286
[   13.332638][  T221] RAX: 00000000ffffffa6 RBX: ff1100000c358900 RCX: 1ff400000013ed8c
[   13.332847][  T221] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3589bc
[   13.333049][  T221] RBP: ff1100000f459000 R08: 1fe220000186b139 R09: ff1100000d828b80
[   13.333253][  T221] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.333456][  T221] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000b4db890
[   13.333661][  T221] FS:  00007f9d695bd840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   13.333910][  T221] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.334084][  T221] CR2: 000000000042ebe0 CR3: 000000000a68f003 CR4: 0000000000771ef0
[   13.334295][  T221] PKRU: 55555554
[   13.334396][  T221] Call Trace:
[   13.334499][  T221]  <TASK>
[   13.334571][  T221]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.334712][  T221]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.334819][  T221]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   13.335248][  T221]  __dev_notify_flags (net/core/dev.c:9787)
[   13.335387][  T221]  ? netif_change_name (net/core/dev.c:1495)
[   13.335521][  T221]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.335659][  T221]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.335797][  T221]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.335943][  T221]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   13.336080][  T221]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.336218][  T221]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   13.336356][  T221]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   13.336491][  T221]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.336629][  T221]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   13.336767][  T221]  veth_newlink (drivers/net/veth.c:1871)
[   13.336915][  T221]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   13.337051][  T221]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.337188][  T221]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.337324][  T221]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   13.337475][  T221]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   13.337610][  T221]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   13.337748][  T221]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   13.337893][  T221]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.338031][  T221]  ? rtnl_create_link (net/core/rtnetlink.c:3733)
[   13.338168][  T221]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   13.338305][  T221]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   13.338439][  T221]  ? __dev_get_by_name (net/core/dev.c:883)
[   13.338573][  T221]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   13.338713][  T221]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   13.338863][  T221]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.339004][  T221]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.339138][  T221]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.339273][  T221]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.339407][  T221]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.339540][  T221]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.339680][  T221]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.339820][  T221]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.339963][  T221]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.340097][  T221]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.340233][  T221]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.340368][  T221]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.340505][  T221]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.340638][  T221]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.340774][  T221]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.340918][  T221]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.341057][  T221]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.341194][  T221]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.341328][  T221]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.341466][  T221]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.341603][  T221]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.341739][  T221]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.341886][  T221]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.342025][  T221]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.342161][  T221]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.342300][  T221]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.342436][  T221]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.342571][  T221]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.342738][  T221]  ? move_addr_to_kernel (net/socket.c:258)
[   13.342886][  T221]  ___sys_sendmsg (net/socket.c:2752)
[   13.343022][  T221]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.343163][  T221]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.343338][  T221]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   13.343477][  T221]  __sys_sendmsg (net/socket.c:2784)
[   13.343613][  T221]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.343753][  T221]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   13.343896][  T221]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.344033][  T221]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.344169][  T221]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.344304][  T221]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.344439][  T221]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.344608][  T221] RIP: 0033:0x7f9d697f708e
[   13.344753][  T221] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.345246][  T221] RSP: 002b:00007ffea0f32060 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.345451][  T221] RAX: ffffffffffffffda RBX: 00007ffea0f32818 RCX: 00007f9d697f708e
[   13.345652][  T221] RDX: 0000000000000000 RSI: 00007ffea0f32110 RDI: 0000000000000005
[   13.345862][  T221] RBP: 00007ffea0f32070 R08: 0000000000000000 R09: 0000000000000000
[   13.346067][  T221] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3bc
[   13.346268][  T221] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffea0f327d0
| [   13.362717][  T221] ------------[ cut here ]------------
| [   13.362880][  T221] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/221
| [   13.363113][  T221] Modules linked in:
| [   13.363484][  T221] Tainted: [W]=WARN
[   13.363587][  T221] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.363757][  T221] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.363941][  T221] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.364419][  T221] RSP: 0018:ffa00000009f71b0 EFLAGS: 00010286
[   13.364587][  T221] RAX: 00000000ffffffa6 RBX: ff1100000c054e40 RCX: 1ff400000013edfc
[   13.364793][  T221] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c054efc
[   13.364999][  T221] RBP: ff1100000dff4000 R08: 1fe220000180a9e1 R09: ff1100000d828b80
[   13.365198][  T221] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.365395][  T221] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa8c03b20
[   13.365596][  T221] FS:  00007f9d695bd840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   13.365831][  T221] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.366002][  T221] CR2: 000000000042ebe0 CR3: 000000000a68f003 CR4: 0000000000771ef0
[   13.366202][  T221] PKRU: 55555554
[   13.366302][  T221] Call Trace:
[   13.366403][  T221]  <TASK>
[   13.366473][  T221]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.366608][  T221]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.366709][  T221]  __dev_notify_flags (net/core/dev.c:9787)
[   13.367293][  T221]  ? netif_change_name (net/core/dev.c:1495)
[   13.367428][  T221]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   13.367562][  T221]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   13.367698][  T221]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   13.367846][  T221]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   13.367980][  T221]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   13.368114][  T221]  ? __dev_get_by_name (net/core/dev.c:883)
[   13.368247][  T221]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   13.368387][  T221]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   13.368526][  T221]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.368661][  T221]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.368798][  T221]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.368941][  T221]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.369074][  T221]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.369207][  T221]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.369345][  T221]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.369480][  T221]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.369614][  T221]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.369747][  T221]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.369892][  T221]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.370029][  T221]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.370164][  T221]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.370296][  T221]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.370430][  T221]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.370565][  T221]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.370699][  T221]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.370848][  T221]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.370985][  T221]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.371121][  T221]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.371257][  T221]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.371392][  T221]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.371527][  T221]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.371662][  T221]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.371804][  T221]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.371947][  T221]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.372084][  T221]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.372217][  T221]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.372384][  T221]  ? move_addr_to_kernel (net/socket.c:258)
[   13.372522][  T221]  ___sys_sendmsg (net/socket.c:2752)
[   13.372657][  T221]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.372801][  T221]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.372980][  T221]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   13.373118][  T221]  __sys_sendmsg (net/socket.c:2784)
[   13.373255][  T221]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.373394][  T221]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   13.373529][  T221]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.373666][  T221]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.373805][  T221]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.373944][  T221]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.374078][  T221]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.374245][  T221] RIP: 0033:0x7f9d697f708e
[   13.374386][  T221] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.374876][  T221] RSP: 002b:00007ffea0f32060 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.375081][  T221] RAX: ffffffffffffffda RBX: 00007ffea0f32818 RCX: 00007f9d697f708e
[   13.375280][  T221] RDX: 0000000000000000 RSI: 00007ffea0f32110 RDI: 0000000000000005
[   13.375481][  T221] RBP: 00007ffea0f32070 R08: 0000000000000000 R09: 0000000000000000
[   13.375681][  T221] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3bc
[   13.375890][  T221] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffea0f327d0
| [   13.399400][  T222] ------------[ cut here ]------------
| [   13.399587][  T222] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/222
| [   13.400287][  T222] Modules linked in:
| [   13.400753][  T222] Tainted: [W]=WARN
[   13.400922][  T222] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.401134][  T222] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.401356][  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
[   13.401896][  T222] RSP: 0018:ffa0000000a07020 EFLAGS: 00010286
[   13.402108][  T222] RAX: 00000000ffffffa6 RBX: ff1100000dbf2ac0 RCX: 1ff4000000140dca
[   13.402349][  T222] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbf2b7c
[   13.402592][  T222] RBP: ff1100000dff4000 R08: 1fe2200001b7e571 R09: ff1100000f80d158
[   13.402858][  T222] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   13.403099][  T222] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   13.403343][  T222] FS:  00007fb833b1f840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   13.403618][  T222] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.403853][  T222] CR2: 000000001c681988 CR3: 000000000f357003 CR4: 0000000000771ef0
[   13.404099][  T222] PKRU: 55555554
[   13.404246][  T222] Call Trace:
[   13.404392][  T222]  <TASK>
[   13.404507][  T222]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.404688][  T222]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.404860][  T222]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   13.405043][  T222]  __dev_notify_flags (net/core/dev.c:9787)
[   13.405232][  T222]  ? netif_change_name (net/core/dev.c:1495)
[   13.405412][  T222]  ? __dev_change_flags (net/core/dev.c:9752)
[   13.405591][  T222]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   13.405769][  T222]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.405971][  T222]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   13.406154][  T222]  netif_change_flags (net/core/dev.c:9820)
[   13.406339][  T222]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   13.406519][  T222]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   13.406702][  T222]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   13.406903][  T222]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   13.407120][  T222]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.407300][  T222]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.407480][  T222]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.407661][  T222]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.407865][  T222]  ? __kernel_text_address (kernel/extable.c:79)
[   13.408048][  T222]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.408228][  T222]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.408407][  T222]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.408587][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.408767][  T222]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.408969][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.409150][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.409331][  T222]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   13.409513][  T222]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   13.409693][  T222]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   13.409896][  T222]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.410082][  T222]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   13.410263][  T222]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   13.410451][  T222]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.410633][  T222]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.410818][  T222]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.411012][  T222]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.411193][  T222]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.411374][  T222]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.411557][  T222]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.411738][  T222]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.411941][  T222]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.412122][  T222]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.412303][  T222]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.412482][  T222]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.412661][  T222]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.412861][  T222]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.413043][  T222]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.413229][  T222]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.413406][  T222]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.413587][  T222]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.413773][  T222]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.413974][  T222]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.414159][  T222]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.414339][  T222]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.414520][  T222]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.414704][  T222]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.414907][  T222]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.415091][  T222]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.415273][  T222]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.415453][  T222]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.415636][  T222]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.415825][  T222]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.416023][  T222]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.416231][  T222]  ? move_addr_to_kernel (net/socket.c:258)
[   13.416412][  T222]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.416594][  T222]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.416786][  T222]  ___sys_sendmsg (net/socket.c:2752)
[   13.416980][  T222]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   13.417193][  T222]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.417387][  T222]  __sys_sendmsg (net/socket.c:2784)
[   13.417566][  T222]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.417744][  T222]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   13.417976][  T222]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.418155][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.418335][  T222]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.418514][  T222]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.418694][  T222]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.418899][  T222]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.419109][  T222] RIP: 0033:0x7fb833d5908e
[   13.419295][  T222] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.419810][  T222] RSP: 002b:00007ffd24e69650 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.420071][  T222] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb833d5908e
[   13.420314][  T222] RDX: 0000000000000000 RSI: 00007ffd24e69700 RDI: 0000000000000005
[   13.420555][  T222] RBP: 00007ffd24e69660 R08: 0000000000000000 R09: 0000000000000000
[   13.420802][  T222] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3bc
[   13.421060][  T222] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd24e69dd0
| [   13.451563][  T223] ------------[ cut here ]------------
| [   13.451712][  T223] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/223
| [   13.451953][  T223] Modules linked in:
| [   13.452324][  T223] Tainted: [W]=WARN
[   13.452423][  T223] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.452589][  T223] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.452793][  T223] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.453268][  T223] RSP: 0018:ffa0000000a17020 EFLAGS: 00010286
[   13.453436][  T223] RAX: 00000000ffffffa6 RBX: ff1100000c11d540 RCX: 1ff4000000142dca
[   13.453635][  T223] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c11d5fc
[   13.453841][  T223] RBP: ff1100000f459000 R08: 1fe2200001823ac1 R09: ff1100000f80ae58
[   13.454036][  T223] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   13.454232][  T223] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   13.454432][  T223] FS:  00007f74dfc13840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   13.454662][  T223] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.454829][  T223] CR2: 00000000138bc988 CR3: 00000000051af005 CR4: 0000000000771ef0
[   13.455034][  T223] PKRU: 55555554
[   13.455133][  T223] Call Trace:
[   13.455234][  T223]  <TASK>
[   13.455303][  T223]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.455441][  T223]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.455541][  T223]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   13.455674][  T223]  __dev_notify_flags (net/core/dev.c:9787)
[   13.455811][  T223]  ? netif_change_name (net/core/dev.c:1495)
[   13.455946][  T223]  ? __dev_change_flags (net/core/dev.c:9752)
[   13.456080][  T223]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   13.456214][  T223]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.456350][  T223]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   13.456484][  T223]  netif_change_flags (net/core/dev.c:9820)
[   13.456617][  T223]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   13.456749][  T223]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   13.456950][  T223]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   13.457084][  T223]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   13.457249][  T223]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.457380][  T223]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.457511][  T223]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.457641][  T223]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.457773][  T223]  ? __kernel_text_address (kernel/extable.c:79)
[   13.457965][  T223]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.458169][  T223]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.458301][  T223]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.458432][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.458563][  T223]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.458693][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.458826][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.459046][  T223]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   13.459182][  T223]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   13.459314][  T223]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   13.459446][  T223]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.459579][  T223]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   13.459713][  T223]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   13.459932][  T223]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.460065][  T223]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.460195][  T223]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.460326][  T223]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.460456][  T223]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.460587][  T223]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.460721][  T223]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.460933][  T223]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.461063][  T223]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.461192][  T223]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.461322][  T223]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.461454][  T223]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.461585][  T223]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.461714][  T223]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.461939][  T223]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.462071][  T223]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.462200][  T223]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.462332][  T223]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.462463][  T223]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.462595][  T223]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.462728][  T223]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.462951][  T223]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.463088][  T223]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.463222][  T223]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.463354][  T223]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.463485][  T223]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.463619][  T223]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.463751][  T223]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.463965][  T223]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.464096][  T223]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.464227][  T223]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.464388][  T223]  ? move_addr_to_kernel (net/socket.c:258)
[   13.464519][  T223]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.464651][  T223]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.464787][  T223]  ___sys_sendmsg (net/socket.c:2752)
[   13.464962][  T223]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   13.465124][  T223]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.465268][  T223]  __sys_sendmsg (net/socket.c:2784)
[   13.465398][  T223]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.465528][  T223]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   13.465697][  T223]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.465841][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.465973][  T223]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.466103][  T223]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.466234][  T223]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.466364][  T223]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.466526][  T223] RIP: 0033:0x7f74dfe4d08e
[   13.466664][  T223] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.467142][  T223] RSP: 002b:00007ffdabf3e3f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.467339][  T223] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f74dfe4d08e
[   13.467536][  T223] RDX: 0000000000000000 RSI: 00007ffdabf3e4a0 RDI: 0000000000000005
[   13.467734][  T223] RBP: 00007ffdabf3e400 R08: 0000000000000000 R09: 0000000000000000
[   13.467946][  T223] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3bc
[   13.468141][  T223] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdabf3eb70
| [   13.478176][   T36] ------------[ cut here ]------------
| [   13.478305][   T36] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/36
| [   13.478542][   T36] Modules linked in:
| [   13.478921][   T36] Tainted: [W]=WARN
[   13.479015][   T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.479167][   T36] Workqueue: events_unbound linkwatch_event
[   13.479322][   T36] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.479482][   T36] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.479920][   T36] RSP: 0018:ffa000000028f9e0 EFLAGS: 00010286
[   13.480071][   T36] RAX: 00000000ffffffa6 RBX: ff1100000c11cac0 RCX: 1ff4000000051f02
[   13.480250][   T36] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c11cb7c
[   13.480433][   T36] RBP: ff1100000dff4000 R08: 1fe2200001823971 R09: ff11000001d751a8
[   13.480612][   T36] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   13.480796][   T36] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.481024][   T36] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   13.481244][   T36] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.481426][   T36] CR2: 00000000138bc988 CR3: 000000003174d001 CR4: 0000000000771ef0
[   13.481606][   T36] PKRU: 55555554
[   13.481697][   T36] Call Trace:
[   13.481793][   T36]  <TASK>
[   13.481862][   T36]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.481984][   T36]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.482108][   T36]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.482204][   T36]  netif_state_change (net/core/dev.c:1605)
[   13.482324][   T36]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   13.482476][   T36]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   13.482595][   T36]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   13.482714][   T36]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.482844][   T36]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   13.482965][   T36]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   13.483084][   T36]  process_one_work (kernel/workqueue.c:3314)
[   13.483209][   T36]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   13.483328][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.483453][   T36]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   13.483575][   T36]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   13.483694][   T36]  kthread (kernel/kthread.c:436)
[   13.483793][   T36]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.483948][   T36]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.484067][   T36]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.484189][   T36]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   13.484340][   T36]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.484461][   T36]  ? kthread_affine_node (kernel/kthread.c:378)
[   13.484582][   T36]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.513348][  T224] ------------[ cut here ]------------
| [   13.513538][  T224] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/224
| [   13.514304][  T224] Modules linked in:
| [   13.514776][  T224] Tainted: [W]=WARN
[   13.514968][  T224] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.515178][  T224] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.515406][  T224] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   13.515955][  T224] RSP: 0018:ffa0000000a17050 EFLAGS: 00010286
[   13.516167][  T224] RAX: 00000000ffffffa6 RBX: ff11000006041540 RCX: 1ff4000000142dd0
[   13.516405][  T224] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000060415fc
[   13.516647][  T224] RBP: ff1100000dff4000 R08: 1fe2200000c082c1 R09: ff1100000f955180
[   13.516914][  T224] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   13.517158][  T224] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   13.517397][  T224] FS:  00007fe39a212840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   13.517676][  T224] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.517905][  T224] CR2: 00007fe39a4e21a0 CR3: 0000000004f23006 CR4: 0000000000771ef0
[   13.518147][  T224] PKRU: 55555554
[   13.518289][  T224] Call Trace:
[   13.518433][  T224]  <TASK>
[   13.518547][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.518725][  T224]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   13.518932][  T224]  notifier_call_chain (kernel/notifier.c:85)
[   13.519114][  T224]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   13.519291][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.519472][  T224]  ? netif_set_group (net/core/dev.c:9947)
[   13.519651][  T224]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   13.519881][  T224]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   13.520064][  T224]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   13.520248][  T224]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   13.520425][  T224]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   13.520638][  T224]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.520822][  T224]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.521015][  T224]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.521195][  T224]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.521373][  T224]  ? __kernel_text_address (kernel/extable.c:79)
[   13.521556][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.521736][  T224]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.522041][  T224]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.522279][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.522521][  T224]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.522797][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.523100][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.523353][  T224]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   13.523615][  T224]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   13.523797][  T224]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   13.523987][  T224]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.524180][  T224]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   13.524359][  T224]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.524538][  T224]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.524714][  T224]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.524916][  T224]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.525095][  T224]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.525269][  T224]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.525448][  T224]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.525623][  T224]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.525809][  T224]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.526000][  T224]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.526179][  T224]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.526360][  T224]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.526537][  T224]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.526715][  T224]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.526911][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.527093][  T224]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.527268][  T224]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.527447][  T224]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.527624][  T224]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.527813][  T224]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.528009][  T224]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.528185][  T224]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.528364][  T224]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.528543][  T224]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.528719][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.528922][  T224]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.529106][  T224]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.529284][  T224]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.529463][  T224]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.529641][  T224]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.529824][  T224]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.530047][  T224]  ? move_addr_to_kernel (net/socket.c:258)
[   13.530226][  T224]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.530407][  T224]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.530587][  T224]  ___sys_sendmsg (net/socket.c:2752)
[   13.530765][  T224]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   13.531008][  T224]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.531198][  T224]  __sys_sendmsg (net/socket.c:2784)
[   13.531375][  T224]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.531550][  T224]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   13.531763][  T224]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.531974][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.532152][  T224]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.532328][  T224]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.532504][  T224]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.532682][  T224]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.532910][  T224] RIP: 0033:0x7fe39a44c08e
[   13.533098][  T224] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.533605][  T224] RSP: 002b:00007fff79323f60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.533867][  T224] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe39a44c08e
[   13.534108][  T224] RDX: 0000000000000000 RSI: 00007fff79324010 RDI: 0000000000000005
[   13.534351][  T224] RBP: 00007fff79323f70 R08: 0000000000000000 R09: 0000000000000000
[   13.534589][  T224] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3bd
[   13.534850][  T224] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff793246e0
| [   13.566715][  T225] ------------[ cut here ]------------
| [   13.566907][  T225] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/225
| [   13.567177][  T225] Modules linked in:
| [   13.567734][  T225] Tainted: [W]=WARN
[   13.567908][  T225] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.568117][  T225] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.568331][  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
[   13.568853][  T225] RSP: 0018:ffa0000000a27150 EFLAGS: 00010286
[   13.569068][  T225] RAX: 00000000ffffffa6 RBX: ff1100000c11ce40 RCX: 1ff4000000144df0
[   13.569306][  T225] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c11cefc
[   13.569543][  T225] RBP: ff1100000f459000 R08: 1fe22000018239e1 R09: ff1100000f722e58
[   13.569788][  T225] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   13.570043][  T225] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000cc9fbc0
[   13.570282][  T225] FS:  00007f3e4262e840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   13.570555][  T225] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.570763][  T225] CR2: 00000000004ebb20 CR3: 0000000004d6c002 CR4: 0000000000771ef0
[   13.571028][  T225] PKRU: 55555554
[   13.571172][  T225] Call Trace:
[   13.571315][  T225]  <TASK>
[   13.571429][  T225]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.571605][  T225]  ? notifier_call_chain (kernel/notifier.c:85)
[   13.571792][  T225]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.571951][  T225]  netif_state_change (net/core/dev.c:1605)
[   13.572128][  T225]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   13.572334][  T225]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   13.572544][  T225]  linkwatch_sync_dev (net/core/link_watch.c:295)
[   13.572723][  T225]  rtnl_getlink (net/core/rtnetlink.c:4273)
[   13.572922][  T225]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.573098][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.573275][  T225]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   13.573452][  T225]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.573627][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.573814][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.574021][  T225]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.574197][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.574374][  T225]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.574548][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.574725][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.574929][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.575112][  T225]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   13.575288][  T225]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.575464][  T225]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.575638][  T225]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.575821][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.576015][  T225]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.576189][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.576365][  T225]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.576546][  T225]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.576722][  T225]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.576919][  T225]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.577095][  T225]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.577275][  T225]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.577453][  T225]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.577628][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.577815][  T225]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.578007][  T225]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.578184][  T225]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.578361][  T225]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.578536][  T225]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.578711][  T225]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.578934][  T225]  ? move_addr_to_kernel (net/socket.c:258)
[   13.579115][  T225]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.579293][  T225]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   13.579503][  T225]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.579678][  T225]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   13.579903][  T225]  ___sys_sendmsg (net/socket.c:2752)
[   13.580078][  T225]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.580252][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.580441][  T225]  ? move_addr_to_user (./include/linux/uaccess.h:236 net/socket.c:302)
[   13.580615][  T225]  ? do_getsockname (net/socket.c:2192)
[   13.580804][  T225]  __sys_sendmsg (net/socket.c:2784)
[   13.580994][  T225]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.581173][  T225]  ? __sys_getsockname (net/socket.c:2210)
[   13.581348][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.581525][  T225]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.581699][  T225]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.581900][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.582077][  T225]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.582285][  T225] RIP: 0033:0x7f3e4286808e
[   13.582465][  T225] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.582983][  T225] RSP: 002b:00007ffe188bd950 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.583226][  T225] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3e4286808e
[   13.583465][  T225] RDX: 0000000000000000 RSI: 00007ffe188bda00 RDI: 0000000000000006
[   13.583702][  T225] RBP: 00007ffe188bd960 R08: 0000000000000000 R09: 0000000000000000
[   13.583959][  T225] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3bc
[   13.584201][  T225] R13: 00007ffe188bdab0 R14: 0000000000000000 R15: 0000000000000004
| [   13.586967][  T225] ------------[ cut here ]------------
| [   13.587179][  T225] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/225
| [   13.587493][  T225] Modules linked in:
| [   13.587982][  T225] Tainted: [W]=WARN
[   13.588127][  T225] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.588348][  T225] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.588564][  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
[   13.589096][  T225] RSP: 0018:ffa0000000a27050 EFLAGS: 00010286
[   13.589311][  T225] RAX: 00000000ffffffa6 RBX: ff1100000e5cc040 RCX: 1ff4000000144dd0
[   13.589556][  T225] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e5cc0fc
[   13.589804][  T225] RBP: ff1100000f459000 R08: 1fe2200001cb9821 R09: ff1100000f722e80
[   13.590054][  T225] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   13.590291][  T225] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   13.590534][  T225] FS:  00007f3e4262e840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   13.590811][  T225] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.591033][  T225] CR2: 00007f3e429b6900 CR3: 0000000004d6c002 CR4: 0000000000771ef0
[   13.591274][  T225] PKRU: 55555554
[   13.591415][  T225] Call Trace:
[   13.591561][  T225]  <TASK>
[   13.591674][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.591870][  T225]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   13.592047][  T225]  notifier_call_chain (kernel/notifier.c:85)
[   13.592225][  T225]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   13.592402][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.592579][  T225]  ? netif_set_group (net/core/dev.c:9947)
[   13.592756][  T225]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   13.592984][  T225]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   13.593162][  T225]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   13.593339][  T225]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   13.593517][  T225]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   13.593726][  T225]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.593926][  T225]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.594102][  T225]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.594280][  T225]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.594457][  T225]  ? __kernel_text_address (kernel/extable.c:79)
[   13.594634][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.594822][  T225]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.595010][  T225]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.595187][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.595364][  T225]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   13.595544][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.595718][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.595915][  T225]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   13.596093][  T225]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   13.596268][  T225]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   13.596446][  T225]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   13.596628][  T225]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   13.596813][  T225]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.597007][  T225]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.597180][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.597357][  T225]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.597532][  T225]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.597710][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.597906][  T225]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.598083][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.598260][  T225]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.598439][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.598616][  T225]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.598802][  T225]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.598990][  T225]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.599166][  T225]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.599341][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.599519][  T225]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.599697][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.599897][  T225]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.600074][  T225]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.600252][  T225]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.600432][  T225]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.600607][  T225]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.600794][  T225]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.600984][  T225]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.601163][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.601342][  T225]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.601520][  T225]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.601698][  T225]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.601899][  T225]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   13.602077][  T225]  ? copy_msghdr_from_user (net/socket.c:2635)
[   13.602252][  T225]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   13.602463][  T225]  ? move_addr_to_kernel (net/socket.c:258)
[   13.602642][  T225]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.602825][  T225]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.603017][  T225]  ___sys_sendmsg (net/socket.c:2752)
[   13.603194][  T225]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   13.603402][  T225]  ? copy_msghdr_from_user (net/socket.c:2603)
[   13.603590][  T225]  __sys_sendmsg (net/socket.c:2784)
[   13.603769][  T225]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   13.603964][  T225]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   13.604173][  T225]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.604350][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.604527][  T225]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.604703][  T225]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.604924][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.605101][  T225]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.605309][  T225] RIP: 0033:0x7f3e4286808e
[   13.605492][  T225] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.606016][  T225] RSP: 002b:00007ffe188bf5d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.606260][  T225] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f3e4286808e
[   13.606498][  T225] RDX: 0000000000000000 RSI: 00007ffe188bf680 RDI: 0000000000000005
[   13.606739][  T225] RBP: 00007ffe188bf5e0 R08: 0000000000000000 R09: 0000000000000000
[   13.606997][  T225] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3bd
[   13.607240][  T225] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe188bfd50
| [   16.615448][   T12] ------------[ cut here ]------------
| [   16.615626][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   16.615893][   T12] Modules linked in:
| [   16.616269][   T12] Tainted: [W]=WARN
[   16.616360][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.616519][   T12] Workqueue: netns cleanup_net
[   16.616649][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.616811][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.617243][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.617393][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a1d5a80 RCX: 1ff4000000018eed
[   16.617573][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a1d5b3c
[   16.617755][   T12] RBP: ff1100000feb1000 R08: 1fe220000143ab69 R09: ff11000001aed1d0
[   16.617950][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.618130][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.618314][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   16.618521][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.618670][   T12] CR2: 0000557dc5616d5c CR3: 000000000c954004 CR4: 0000000000771ef0
[   16.618865][   T12] PKRU: 55555554
[   16.618956][   T12] Call Trace:
[   16.619046][   T12]  <TASK>
[   16.619109][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.619262][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.619418][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.619540][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.619667][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.619785][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.619940][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.620062][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.620182][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.620299][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.620420][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.620539][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.620658][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.620779][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.620911][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.621035][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.621157][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.621278][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.621401][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.621524][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.621644][   T12]  kthread (kernel/kthread.c:436)
[   16.621737][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.621894][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.622013][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.622134][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.622295][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.622416][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.622535][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.625143][   T12] ------------[ cut here ]------------
| [   16.625265][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   16.625499][   T12] Modules linked in:
| [   16.625872][   T12] Tainted: [W]=WARN
[   16.625966][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.626114][   T12] Workqueue: netns cleanup_net
[   16.626239][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.626396][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.626841][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.626997][   T12] RAX: 00000000ffffffa6 RBX: ff11000008f3ec80 RCX: 1ff4000000018eed
[   16.627174][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f3ed3c
[   16.627356][   T12] RBP: ff11000007f19000 R08: 1fe22000011e7da9 R09: ff11000001aed1d0
[   16.627535][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.627713][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.627903][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   16.628118][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.628354][   T12] CR2: 0000557dc5616d5c CR3: 000000000c954004 CR4: 0000000000771ef0
[   16.628532][   T12] PKRU: 55555554
[   16.628623][   T12] Call Trace:
[   16.628712][   T12]  <TASK>
[   16.628858][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.629012][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.629163][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.629284][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.629479][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.629598][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.629723][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.629927][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.630049][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.630167][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.630289][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.630416][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.630536][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.630658][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.630779][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.630980][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.631106][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.631225][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.631350][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.631474][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.631591][   T12]  kthread (kernel/kthread.c:436)
[   16.631687][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.631847][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.631968][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.632088][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.632237][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.632358][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.632480][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.635394][   T12] ------------[ cut here ]------------
| [   16.635519][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   16.635756][   T12] Modules linked in:
| [   16.636542][   T12] Tainted: [W]=WARN
[   16.636633][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.636784][   T12] Workqueue: netns cleanup_net
[   16.636961][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.637121][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.637569][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.637718][   T12] RAX: 00000000ffffffa6 RBX: ff11000008f3fa80 RCX: 1ff4000000018eed
[   16.637945][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f3fb3c
[   16.638181][   T12] RBP: ff1100000f36c000 R08: 1fe22000011e7f69 R09: ff11000001aed1d0
[   16.638362][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.638540][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.638722][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   16.638991][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.639146][   T12] CR2: 0000557dc5616d5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   16.639329][   T12] PKRU: 55555554
[   16.639416][   T12] Call Trace:
[   16.639504][   T12]  <TASK>
[   16.639565][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.639717][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.639927][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.640046][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.640165][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.640286][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.640407][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.640527][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.640644][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.640765][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.640937][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.641060][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.641176][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.641300][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.641417][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.641536][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.641660][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.641778][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.641952][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.642075][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.642192][   T12]  kthread (kernel/kthread.c:436)
[   16.642282][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.642430][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.642553][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.642674][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.642828][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.642993][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.643111][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.647719][   T12] ------------[ cut here ]------------
| [   16.647870][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   16.648104][   T12] Modules linked in:
| [   16.648464][   T12] Tainted: [W]=WARN
[   16.648556][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.648708][   T12] Workqueue: netns cleanup_net
[   16.648843][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.649000][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.649421][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.649570][   T12] RAX: 00000000ffffffa6 RBX: ff1100000583a040 RCX: 1ff4000000018eed
[   16.649752][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000583a0fc
[   16.649937][   T12] RBP: ff1100000e42c000 R08: 1fe2200000b07421 R09: ff11000001aed1d0
[   16.650112][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.650286][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.650463][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   16.650673][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.650827][   T12] CR2: 00007f9abe2aa430 CR3: 0000000004a44002 CR4: 0000000000771ef0
[   16.651012][   T12] PKRU: 55555554
[   16.651100][   T12] Call Trace:
[   16.651191][   T12]  <TASK>
[   16.651253][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.651406][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.651552][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.651670][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.651799][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.651924][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.652045][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.652164][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.652361][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.652480][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.652601][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.652719][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.652916][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.653039][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.653159][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.653279][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.653472][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.653591][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.653713][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.653846][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.654036][   T12]  kthread (kernel/kthread.c:436)
[   16.654128][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.654276][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.654399][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.654596][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.654746][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.654925][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.655089][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.657455][   T12] ------------[ cut here ]------------
| [   16.657588][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   16.657826][   T12] Modules linked in:
| [   16.658199][   T12] Tainted: [W]=WARN
[   16.658288][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.658436][   T12] Workqueue: netns cleanup_net
[   16.658560][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.658725][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.659166][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.659316][   T12] RAX: 00000000ffffffa6 RBX: ff1100000583ba80 RCX: 1ff4000000018eed
[   16.659491][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000583bb3c
[   16.659663][   T12] RBP: ff1100000528c000 R08: 1fe2200000b07769 R09: ff11000001aed1d0
[   16.659853][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.660033][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.660211][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   16.660414][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.660561][   T12] CR2: 00007f9eb239f000 CR3: 0000000004a44005 CR4: 0000000000771ef0
[   16.660736][   T12] PKRU: 55555554
[   16.660830][   T12] Call Trace:
[   16.660924][   T12]  <TASK>
[   16.660985][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.661136][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.661281][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.661400][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.661523][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.661644][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.661764][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.661895][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.662017][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.662134][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.662253][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.662370][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.662490][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.662613][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.662730][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.662861][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.662983][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.663104][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.663227][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.663348][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.663465][   T12]  kthread (kernel/kthread.c:436)
[   16.663556][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.663700][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.663822][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.663946][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.664091][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.664207][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.664324][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.681431][   T12] ------------[ cut here ]------------
| [   16.681565][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   16.681818][   T12] Modules linked in:
| [   16.682208][   T12] Tainted: [W]=WARN
[   16.682302][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.682459][   T12] Workqueue: netns cleanup_net
[   16.682588][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.682748][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.683406][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   16.683566][   T12] RAX: 00000000ffffffa6 RBX: ff1100000583b380 RCX: 1ff4000000018eaf
[   16.683761][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000583b43c
[   16.684003][   T12] RBP: ff1100000f459000 R08: 1fe2200000b07689 R09: ff11000001aed1d0
[   16.684185][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   16.684384][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000dff4000
[   16.684581][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   16.684800][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.684971][   T12] CR2: 00007f9abe2aa430 CR3: 000000003174d004 CR4: 0000000000771ef0
[   16.685156][   T12] PKRU: 55555554
[   16.685248][   T12] Call Trace:
[   16.685344][   T12]  <TASK>
[   16.685409][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.685535][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.685628][   T12]  netif_close_many (net/core/dev.c:1804)
[   16.685753][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.685887][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.686010][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.686133][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   16.686258][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   16.686415][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   16.686570][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.686694][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.686859][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.686985][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.687109][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   16.687264][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   16.687392][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   16.687519][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   16.687644][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   16.687770][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   16.687906][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   16.688035][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.688160][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.688287][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.688413][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.688536][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.688662][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.688785][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.688924][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.689053][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.689177][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.689308][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.689437][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.689561][   T12]  kthread (kernel/kthread.c:436)
[   16.689653][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.689815][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.689945][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.690071][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.690228][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.690354][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.690479][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.692814][   T12] ------------[ cut here ]------------
| [   16.693410][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   16.693654][   T12] Modules linked in:
| [   16.694105][   T12] Tainted: [W]=WARN
[   16.694204][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.694367][   T12] Workqueue: netns cleanup_net
[   16.694496][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.694660][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.695121][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   16.695275][   T12] RAX: 00000000ffffffa6 RBX: ff1100000908aac0 RCX: 1ff4000000018eaf
[   16.695459][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000908ab7c
[   16.695642][   T12] RBP: ff1100000dff4000 R08: 1fe2200001211571 R09: ff11000001aed1d0
[   16.695828][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   16.696019][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   16.696206][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   16.696423][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.696576][   T12] CR2: 00007f9abe2aa430 CR3: 000000003174d004 CR4: 0000000000771ef0
[   16.696763][   T12] PKRU: 55555554
[   16.696866][   T12] Call Trace:
[   16.696959][   T12]  <TASK>
[   16.697025][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.697150][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.697279][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.697374][   T12]  netif_close_many (net/core/dev.c:1804)
[   16.697498][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.697622][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.697747][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.697881][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   16.698004][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   16.698163][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   16.698318][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.698442][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.698597][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.698721][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.698854][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   16.699011][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   16.699138][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   16.699262][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   16.699386][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   16.699510][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   16.699636][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   16.699761][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.699894][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.700020][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.700145][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.700268][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.700393][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.700516][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.700642][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.700770][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.700905][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.701031][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.701158][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.701281][   T12]  kthread (kernel/kthread.c:436)
[   16.701375][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.701529][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.701652][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.701776][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.701939][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.702062][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.702184][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.705805][   T12] ------------[ cut here ]------------
| [   16.705996][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   16.706247][   T12] Modules linked in:
| [   16.706609][   T12] Tainted: [W]=WARN
[   16.706699][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.706869][   T12] Workqueue: netns cleanup_net
[   16.706991][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.707153][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.707575][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   16.707727][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b348040 RCX: 1ff4000000018ed5
[   16.707917][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b3480fc
[   16.708104][   T12] RBP: ff1100000f459000 R08: 1fe2200001669021 R09: ff11000001aed1d0
[   16.708278][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.708457][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.708634][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   16.708854][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.709001][   T12] CR2: 00007f9abe170574 CR3: 000000003174d001 CR4: 0000000000771ef0
[   16.709178][   T12] PKRU: 55555554
[   16.709265][   T12] Call Trace:
[   16.709353][   T12]  <TASK>
[   16.709415][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.709568][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.709714][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.709845][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.709962][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   16.710112][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   16.710231][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   16.710350][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   16.710469][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   16.710588][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   16.710713][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.710838][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.710959][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.711077][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.711193][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.711313][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.711432][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.711553][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.711674][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.711797][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.711925][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.712048][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.712166][   T12]  kthread (kernel/kthread.c:436)
[   16.712259][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.712406][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.712525][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.712643][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.712794][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.712919][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.713038][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.715469][   T12] ------------[ cut here ]------------
| [   16.715588][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   16.715822][   T12] Modules linked in:
| [   16.716187][   T12] Tainted: [W]=WARN
[   16.716276][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.716427][   T12] Workqueue: netns cleanup_net
[   16.716560][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.716713][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.717140][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   16.717291][   T12] RAX: 00000000ffffffa6 RBX: ff11000004c86740 RCX: 1ff4000000018ed5
[   16.717465][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004c867fc
[   16.717643][   T12] RBP: ff1100000dff4000 R08: 1fe2200000990d01 R09: ff11000001aed1d0
[   16.717822][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.718000][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.718181][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   16.718388][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.718534][   T12] CR2: 00007f9abe170574 CR3: 000000003174d001 CR4: 0000000000771ef0
[   16.718715][   T12] PKRU: 55555554
[   16.718809][   T12] Call Trace:
[   16.718901][   T12]  <TASK>
[   16.718963][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.719163][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.719327][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.719446][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.719566][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   16.719717][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   16.719856][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   16.719975][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   16.720095][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   16.720221][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   16.720341][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.720458][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.720577][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.720694][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.720817][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.720943][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.721067][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.721187][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.721308][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.721425][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.721547][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.721673][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.721799][   T12]  kthread (kernel/kthread.c:436)
[   16.721893][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.722040][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.722158][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.722276][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.722422][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.722542][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.722659][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.725160][   T12] ------------[ cut here ]------------
| [   16.725290][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   16.725530][   T12] Modules linked in:
| [   16.725905][   T12] Tainted: [W]=WARN
[   16.725995][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.726143][   T12] Workqueue: netns cleanup_net
[   16.726266][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.726423][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.726874][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   16.727024][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b26ac80 RCX: 1ff4000000018ed5
[   16.727201][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b26ad3c
[   16.727379][   T12] RBP: ff110000089b1000 R08: 1fe220000164d5a9 R09: ff11000001aed1d0
[   16.727555][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.727730][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.727923][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   16.728133][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.728280][   T12] CR2: 0000557baa7bf058 CR3: 0000000012d96001 CR4: 0000000000771ef0
[   16.728457][   T12] PKRU: 55555554
[   16.728546][   T12] Call Trace:
[   16.728635][   T12]  <TASK>
[   16.728701][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.728871][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.729021][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.729141][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.729259][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   16.729414][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   16.729535][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   16.729654][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   16.729774][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   16.729905][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   16.730026][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.730144][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.730265][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.730382][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.730498][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.730624][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.730743][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.730874][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.730996][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.731113][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.731236][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.731359][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.731486][   T12]  kthread (kernel/kthread.c:436)
[   16.731576][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.731727][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.731858][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.731976][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.732124][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.732242][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.732361][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.761293][   T12] ------------[ cut here ]------------
| [   16.761422][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   16.761656][   T12] Modules linked in:
| [   16.762036][   T12] Tainted: [W]=WARN
[   16.762127][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.762273][   T12] Workqueue: netns cleanup_net
[   16.762397][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.762550][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.762985][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.763134][   T12] RAX: 00000000ffffffa6 RBX: ff110000098191c0 RCX: 1ff4000000018eed
[   16.763306][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000981927c
[   16.763480][   T12] RBP: ff1100000a551000 R08: 1fe2200001303251 R09: ff11000001aed1d0
[   16.763660][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.763845][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.764021][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   16.764223][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.764378][   T12] CR2: 0000557baa7bf058 CR3: 000000003174d006 CR4: 0000000000771ef0
[   16.764554][   T12] PKRU: 55555554
[   16.764640][   T12] Call Trace:
[   16.764733][   T12]  <TASK>
[   16.764798][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.764954][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.765099][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.765217][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.765335][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.765458][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.765580][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.765700][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.765846][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.765963][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.766082][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.766200][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.766317][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.766434][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.766558][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.766677][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.766802][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.766926][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.767048][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.767181][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.767299][   T12]  kthread (kernel/kthread.c:436)
[   16.767388][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.767536][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.767654][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.767771][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.767927][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.768048][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.768166][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.774627][   T12] ------------[ cut here ]------------
| [   16.774749][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   16.774990][   T12] Modules linked in:
| [   16.775355][   T12] Tainted: [W]=WARN
[   16.775444][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.775590][   T12] Workqueue: netns cleanup_net
[   16.775714][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.775879][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.776302][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.776449][   T12] RAX: 00000000ffffffa6 RBX: ff11000009818040 RCX: 1ff4000000018eed
[   16.776632][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098180fc
[   16.776813][   T12] RBP: ff11000008af4000 R08: 1fe2200001303021 R09: ff11000001aed1d0
[   16.776990][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.777169][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.777344][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   16.777550][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.777699][   T12] CR2: 0000557baa7bf058 CR3: 000000003174d006 CR4: 0000000000771ef0
[   16.777887][   T12] PKRU: 55555554
[   16.777974][   T12] Call Trace:
[   16.778062][   T12]  <TASK>
[   16.778124][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.778272][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.778418][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.778541][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.778659][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.778776][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.778903][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.779024][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.779143][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.779260][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.779381][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.779504][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.779624][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.779742][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.780332][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.780453][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.780576][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.780694][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.780825][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.780994][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.781116][   T12]  kthread (kernel/kthread.c:436)
[   16.781204][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.781352][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.781470][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.781587][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.781735][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.781902][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.782066][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.784812][   T12] ------------[ cut here ]------------
| [   16.784992][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   16.785270][   T12] Modules linked in:
| [   16.785722][   T12] Tainted: [W]=WARN
[   16.785881][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.786077][   T12] Workqueue: netns cleanup_net
[   16.786247][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.786448][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.786933][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.787129][   T12] RAX: 00000000ffffffa6 RBX: ff11000009818900 RCX: 1ff4000000018eed
[   16.787351][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098189bc
[   16.787573][   T12] RBP: ff110000082b4000 R08: 1fe2200001303139 R09: ff11000001aed1d0
[   16.787801][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   16.788031][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.788254][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   16.788510][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.788704][   T12] CR2: 00005585389d6d5c CR3: 000000000f7cf004 CR4: 0000000000771ef0
[   16.788950][   T12] PKRU: 55555554
[   16.789084][   T12] Call Trace:
[   16.789219][   T12]  <TASK>
[   16.789327][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.789528][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.789720][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.789906][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.790074][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.790238][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.790403][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.790571][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.790740][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.790930][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.791097][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.791262][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.791425][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.791592][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.791759][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.791952][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.792122][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.792290][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.792460][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.792630][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.792801][   T12]  kthread (kernel/kthread.c:436)
[   16.792948][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.793142][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.793309][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.793478][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.793673][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.793859][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.794030][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.796416][   T12] ------------[ cut here ]------------
| [   16.796576][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   16.797699][   T12] Modules linked in:
| [   16.798180][   T12] Tainted: [W]=WARN
[   16.798315][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.798507][   T12] Workqueue: netns cleanup_net
[   16.798677][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.798900][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.799372][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.799565][   T12] RAX: 00000000ffffffa6 RBX: ff11000009818ac0 RCX: 1ff4000000018eed
[   16.799785][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009818b7c
[   16.800028][   T12] RBP: ff11000002529000 R08: 1fe2200001303171 R09: ff11000001aed1d0
[   16.800251][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   16.800471][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.800693][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   16.800967][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.801163][   T12] CR2: 00005585389d6d5c CR3: 000000000f7cf004 CR4: 0000000000771ef0
[   16.801384][   T12] PKRU: 55555554
[   16.801518][   T12] Call Trace:
[   16.801653][   T12]  <TASK>
[   16.801760][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.801974][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.802166][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.802334][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.802502][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.802665][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.802849][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.803018][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.803185][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.803350][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.803517][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.803686][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.803868][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.804037][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.804203][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.804370][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.804539][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.804704][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.804892][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.805066][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.805232][   T12]  kthread (kernel/kthread.c:436)
[   16.805368][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.805563][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.805728][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.805911][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.806105][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.806273][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.806436][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.808945][   T12] ------------[ cut here ]------------
| [   16.809107][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   16.809383][   T12] Modules linked in:
| [   16.810206][   T12] Tainted: [W]=WARN
[   16.810388][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.810630][   T12] Workqueue: netns cleanup_net
[   16.810870][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.811122][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.811633][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   16.811895][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b349c40 RCX: 1ff4000000018eed
[   16.812163][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b349cfc
[   16.812439][   T12] RBP: ff11000009274000 R08: 1fe22000016693a1 R09: ff11000001aed1d0
[   16.812704][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   16.812989][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.813259][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   16.813555][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.813800][   T12] CR2: 00005585389d6d5c CR3: 000000000f7cf004 CR4: 0000000000771ef0
[   16.814080][   T12] PKRU: 55555554
[   16.814260][   T12] Call Trace:
[   16.814440][   T12]  <TASK>
[   16.814594][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.814862][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.815127][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   16.815377][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   16.815593][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.815757][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   16.815945][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.816115][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   16.816285][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.816453][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.816624][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.816801][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.817002][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.817171][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.817339][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.817506][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.817676][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.817863][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.818036][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.818209][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.818375][   T12]  kthread (kernel/kthread.c:436)
[   16.818515][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.818708][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.818897][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.819064][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.819260][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.819429][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.819597][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.834053][  T239] ------------[ cut here ]------------
| [   16.834202][  T239] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/239
| [   16.834434][  T239] Modules linked in:
| [   16.834805][  T239] Tainted: [W]=WARN
[   16.834940][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.835105][  T239] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.835277][  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
[   16.835745][  T239] RSP: 0018:ffa0000000ac7a80 EFLAGS: 00010286
[   16.835921][  T239] RAX: 00000000ffffffa6 RBX: ff11000004c87c40 RCX: 1ff4000000158f16
[   16.836116][  T239] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004c87cfc
[   16.836313][  T239] RBP: ff11000008309000 R08: 1fe2200000990fa1 R09: ff1100000f7a8b80
[   16.836507][  T239] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.836701][  T239] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008309000
[   16.836909][  T239] FS:  00007f0d6055c840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   16.837141][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.837306][  T239] CR2: 00007f0d6075dc20 CR3: 000000000d829001 CR4: 0000000000771ef0
[   16.837504][  T239] PKRU: 55555554
[   16.837602][  T239] Call Trace:
[   16.837699][  T239]  <TASK>
[   16.837768][  T239]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.837909][  T239]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.838042][  T239]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.838143][  T239]  register_netdevice (net/core/dev.c:11488)
[   16.838276][  T239]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.838439][  T239]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.838571][  T239]  register_netdev (net/core/dev.c:11552)
[   16.838702][  T239]  loopback_net_init (drivers/net/loopback.c:218)
[   16.838844][  T239]  ops_init (net/core/net_namespace.c:137)
[   16.838946][  T239]  setup_net (net/core/net_namespace.c:446)
[   16.839046][  T239]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.839176][  T239]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.839306][  T239]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.839438][  T239]  copy_net_ns (net/core/net_namespace.c:579)
[   16.839570][  T239]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.839702][  T239]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.839843][  T239]  ksys_unshare (kernel/fork.c:3243)
[   16.839975][  T239]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.840106][  T239]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.840236][  T239]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.840369][  T239]  ? __ia32_sys_open (fs/open.c:1374)
[   16.840501][  T239]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.840630][  T239]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.840762][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.840901][  T239]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.841032][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.841163][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.841325][  T239] RIP: 0033:0x7f0d6081ebcb
[   16.841464][  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
[   16.841965][  T239] RSP: 002b:00007ffe1afa0868 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.842162][  T239] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0d6081ebcb
[   16.842357][  T239] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.842552][  T239] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.842747][  T239] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe1afa2a90
[   16.843085][  T239] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe1afa4875
| [   16.847358][  T239] ------------[ cut here ]------------
| [   16.847496][  T239] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/239
| [   16.847721][  T239] Modules linked in:
| [   16.848098][  T239] Tainted: [W]=WARN
[   16.848197][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.848360][  T239] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.848529][  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
[   16.849015][  T239] RSP: 0018:ffa0000000ac7918 EFLAGS: 00010286
[   16.849255][  T239] RAX: 00000000ffffffa6 RBX: ff1100000b26a580 RCX: 1ff4000000158ee9
[   16.849560][  T239] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b26a63c
[   16.850494][  T239] RBP: ff11000008d39000 R08: 1fe220000164d4c9 R09: ff1100000f7a8b80
[   16.850694][  T239] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.850969][  T239] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008d39000
[   16.851222][  T239] FS:  00007f0d6055c840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   16.851452][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.851619][  T239] CR2: 00007f0d6075dc20 CR3: 000000000d829001 CR4: 0000000000771ef0
[   16.851824][  T239] PKRU: 55555554
[   16.851977][  T239] Call Trace:
[   16.852074][  T239]  <TASK>
[   16.852143][  T239]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.852276][  T239]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.852406][  T239]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.852505][  T239]  register_netdevice (net/core/dev.c:11488)
[   16.852635][  T239]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.852802][  T239]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.852995][  T239]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   16.853125][  T239]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   16.853254][  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))
[   16.853386][  T239]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   16.853517][  T239]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   16.853658][  T239]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   16.853942][  T239]  ops_init (net/core/net_namespace.c:137)
[   16.854071][  T239]  setup_net (net/core/net_namespace.c:446)
[   16.854169][  T239]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.854299][  T239]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.854430][  T239]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.854561][  T239]  copy_net_ns (net/core/net_namespace.c:579)
[   16.854692][  T239]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.854831][  T239]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.855017][  T239]  ksys_unshare (kernel/fork.c:3243)
[   16.855148][  T239]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.855278][  T239]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.855408][  T239]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.855541][  T239]  ? __ia32_sys_open (fs/open.c:1374)
[   16.855673][  T239]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.855805][  T239]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.855991][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.856121][  T239]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.856250][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.856380][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.856542][  T239] RIP: 0033:0x7f0d6081ebcb
[   16.856680][  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
[   16.857207][  T239] RSP: 002b:00007ffe1afa0868 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.857404][  T239] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0d6081ebcb
[   16.857597][  T239] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.857801][  T239] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.858052][  T239] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe1afa2a90
[   16.858245][  T239] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe1afa4875
| [   16.860510][   T12] ------------[ cut here ]------------
| [   16.860631][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   16.860878][   T12] Modules linked in:
| [   16.861239][   T12] Tainted: [W]=WARN
[   16.861329][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.861475][   T12] Workqueue: netns cleanup_net
[   16.861600][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.861755][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.862188][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   16.862338][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b26b000 RCX: 1ff4000000018ed5
[   16.862513][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b26b0bc
[   16.862689][   T12] RBP: ff11000008d49000 R08: 1fe220000164d619 R09: ff11000001aed1d0
[   16.862876][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   16.863055][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.863231][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   16.863440][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.863590][   T12] CR2: 00007f0d6075dc20 CR3: 000000000d829001 CR4: 0000000000771ef0
[   16.863772][   T12] PKRU: 55555554
[   16.863869][   T12] Call Trace:
[   16.863958][   T12]  <TASK>
[   16.864019][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.864170][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.864324][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   16.864447][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   16.864567][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   16.864686][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   16.864805][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   16.865364][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   16.865488][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   16.865604][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.865728][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   16.865903][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   16.866021][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   16.866141][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.866259][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.866379][   T12]  process_one_work (kernel/workqueue.c:3314)
[   16.866502][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   16.866620][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.866746][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   16.866926][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   16.867046][   T12]  kthread (kernel/kthread.c:436)
[   16.867135][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.867284][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.867408][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   16.867573][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   16.867723][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.867896][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   16.868014][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   16.873134][  T239] ------------[ cut here ]------------
| [   16.873284][  T239] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/239
| [   16.873515][  T239] Modules linked in:
| [   16.873908][  T239] Tainted: [W]=WARN
[   16.874008][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.874175][  T239] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.874347][  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
[   16.874820][  T239] RSP: 0018:ffa0000000ac78f8 EFLAGS: 00010286
[   16.874995][  T239] RAX: 00000000ffffffa6 RBX: ff11000009965000 RCX: 1ff4000000158ee5
[   16.875191][  T239] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000099650bc
[   16.875388][  T239] RBP: ff11000008d41000 R08: 1fe220000132ca19 R09: ff1100000f7a8b80
[   16.875585][  T239] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.875783][  T239] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008d41000
[   16.875993][  T239] FS:  00007f0d6055c840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   16.876223][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.876388][  T239] CR2: 00007f9abe170574 CR3: 000000000d829006 CR4: 0000000000771ef0
[   16.876587][  T239] PKRU: 55555554
[   16.876687][  T239] Call Trace:
[   16.876785][  T239]  <TASK>
[   16.876866][  T239]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.877007][  T239]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.877139][  T239]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.877241][  T239]  register_netdevice (net/core/dev.c:11488)
[   16.877373][  T239]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.877538][  T239]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.877674][  T239]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   16.877810][  T239]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   16.877947][  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))
[   16.878080][  T239]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   16.878213][  T239]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   16.878348][  T239]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   16.878481][  T239]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   16.878615][  T239]  vti_init_net (net/ipv4/ip_vti.c:517)
[   16.878750][  T239]  ops_init (net/core/net_namespace.c:137)
[   16.878892][  T239]  setup_net (net/core/net_namespace.c:446)
[   16.878992][  T239]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.879122][  T239]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.879252][  T239]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.879386][  T239]  copy_net_ns (net/core/net_namespace.c:579)
[   16.879519][  T239]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.879654][  T239]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.879786][  T239]  ksys_unshare (kernel/fork.c:3243)
[   16.879927][  T239]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.880059][  T239]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.880193][  T239]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.880327][  T239]  ? __ia32_sys_open (fs/open.c:1374)
[   16.880461][  T239]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.880594][  T239]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.880727][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.880869][  T239]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.881000][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.881133][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.881299][  T239] RIP: 0033:0x7f0d6081ebcb
[   16.881437][  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
[   16.881915][  T239] RSP: 002b:00007ffe1afa0868 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.882114][  T239] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0d6081ebcb
[   16.882310][  T239] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.882511][  T239] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.882709][  T239] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe1afa2a90
[   16.882967][  T239] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe1afa4875
| [   16.887206][  T239] ------------[ cut here ]------------
| [   16.887344][  T239] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/239
| [   16.887569][  T239] Modules linked in:
| [   16.887943][  T239] Tainted: [W]=WARN
[   16.888041][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.888204][  T239] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.888373][  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
[   16.888850][  T239] RSP: 0018:ffa0000000ac7a78 EFLAGS: 00010286
[   16.889014][  T239] RAX: 00000000ffffffa6 RBX: ff11000009965380 RCX: 1ff4000000158f15
[   16.889210][  T239] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000996543c
[   16.889406][  T239] RBP: ff1100000a4ec000 R08: 1fe220000132ca89 R09: ff1100000f7a8b80
[   16.889604][  T239] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.889801][  T239] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a4ec000
[   16.890004][  T239] FS:  00007f0d6055c840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   16.890233][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.890400][  T239] CR2: 00007f9abe170574 CR3: 000000000d829006 CR4: 0000000000771ef0
[   16.890599][  T239] PKRU: 55555554
[   16.890696][  T239] Call Trace:
[   16.890799][  T239]  <TASK>
[   16.890874][  T239]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.891005][  T239]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.891138][  T239]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.891242][  T239]  register_netdevice (net/core/dev.c:11488)
[   16.891375][  T239]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.891538][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.891675][  T239]  register_netdev (net/core/dev.c:11552)
[   16.891813][  T239]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   16.891953][  T239]  ops_init (net/core/net_namespace.c:137)
[   16.892055][  T239]  setup_net (net/core/net_namespace.c:446)
[   16.892158][  T239]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.892290][  T239]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.892421][  T239]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.892555][  T239]  copy_net_ns (net/core/net_namespace.c:579)
[   16.892687][  T239]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.892829][  T239]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.892965][  T239]  ksys_unshare (kernel/fork.c:3243)
[   16.893098][  T239]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.893230][  T239]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.893362][  T239]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.893494][  T239]  ? __ia32_sys_open (fs/open.c:1374)
[   16.893627][  T239]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.893758][  T239]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.893901][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.894040][  T239]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.894172][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.894303][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.894465][  T239] RIP: 0033:0x7f0d6081ebcb
[   16.894602][  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
[   16.895079][  T239] RSP: 002b:00007ffe1afa0868 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.895278][  T239] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0d6081ebcb
[   16.895476][  T239] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.895672][  T239] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.895877][  T239] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe1afa2a90
[   16.896071][  T239] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe1afa4875
| [   16.900231][  T239] ------------[ cut here ]------------
| [   16.900370][  T239] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/239
| [   16.900600][  T239] Modules linked in:
| [   16.900972][  T239] Tainted: [W]=WARN
[   16.901070][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.901235][  T239] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.901405][  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
[   16.901876][  T239] RSP: 0018:ffa0000000ac7a68 EFLAGS: 00010286
[   16.902042][  T239] RAX: 00000000ffffffa6 RBX: ff110000118543c0 RCX: 1ff4000000158f13
[   16.902238][  T239] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001185447c
[   16.902432][  T239] RBP: ff11000002911000 R08: 1fe220000230a891 R09: ff1100000f7a8b80
[   16.902629][  T239] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.902830][  T239] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002911000
[   16.903032][  T239] FS:  00007f0d6055c840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   16.903260][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.903425][  T239] CR2: 00007f9abe170574 CR3: 000000000d829006 CR4: 0000000000771ef0
[   16.903622][  T239] PKRU: 55555554
[   16.903720][  T239] Call Trace:
[   16.903825][  T239]  <TASK>
[   16.903898][  T239]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.904029][  T239]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.904160][  T239]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.904261][  T239]  register_netdevice (net/core/dev.c:11488)
[   16.904405][  T239]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.904572][  T239]  register_netdev (net/core/dev.c:11552)
[   16.904703][  T239]  sit_init_net (net/ipv6/sit.c:1860)
[   16.904846][  T239]  ops_init (net/core/net_namespace.c:137)
[   16.904946][  T239]  setup_net (net/core/net_namespace.c:446)
[   16.905046][  T239]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.905175][  T239]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.905307][  T239]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.905440][  T239]  copy_net_ns (net/core/net_namespace.c:579)
[   16.905574][  T239]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.905710][  T239]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.905853][  T239]  ksys_unshare (kernel/fork.c:3243)
[   16.905984][  T239]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.906117][  T239]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.906248][  T239]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.906381][  T239]  ? __ia32_sys_open (fs/open.c:1374)
[   16.906514][  T239]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.906647][  T239]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.906778][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.906920][  T239]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.907050][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.907181][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.907343][  T239] RIP: 0033:0x7f0d6081ebcb
[   16.907479][  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
[   16.907958][  T239] RSP: 002b:00007ffe1afa0868 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.908154][  T239] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0d6081ebcb
[   16.908350][  T239] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.908545][  T239] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.908739][  T239] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe1afa2a90
[   16.908945][  T239] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe1afa4875
| [   16.913247][  T239] ------------[ cut here ]------------
| [   16.913380][  T239] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/239
| [   16.913602][  T239] Modules linked in:
| [   16.913978][  T239] Tainted: [W]=WARN
[   16.914077][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.914242][  T239] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.914412][  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
[   16.914889][  T239] RSP: 0018:ffa0000000ac7a78 EFLAGS: 00010286
[   16.915056][  T239] RAX: 00000000ffffffa6 RBX: ff1100000beb3540 RCX: 1ff4000000158f15
[   16.915252][  T239] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000beb35fc
[   16.915446][  T239] RBP: ff1100000a579000 R08: 1fe22000017d66c1 R09: ff1100000f7a8b80
[   16.915642][  T239] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   16.915848][  T239] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a579000
[   16.916046][  T239] FS:  00007f0d6055c840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   16.916276][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.916442][  T239] CR2: 00007f9abe170574 CR3: 000000000d829006 CR4: 0000000000771ef0
[   16.916640][  T239] PKRU: 55555554
[   16.916737][  T239] Call Trace:
[   16.916843][  T239]  <TASK>
[   16.916912][  T239]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.917044][  T239]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.917176][  T239]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.917277][  T239]  register_netdevice (net/core/dev.c:11488)
[   16.917413][  T239]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.917575][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.917708][  T239]  register_netdev (net/core/dev.c:11552)
[   16.917853][  T239]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   16.917986][  T239]  ops_init (net/core/net_namespace.c:137)
[   16.918087][  T239]  setup_net (net/core/net_namespace.c:446)
[   16.918187][  T239]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.918316][  T239]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.918449][  T239]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.918582][  T239]  copy_net_ns (net/core/net_namespace.c:579)
[   16.918715][  T239]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.918859][  T239]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.918991][  T239]  ksys_unshare (kernel/fork.c:3243)
[   16.919123][  T239]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.919257][  T239]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.919388][  T239]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.919519][  T239]  ? __ia32_sys_open (fs/open.c:1374)
[   16.919652][  T239]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.919784][  T239]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.919927][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.920058][  T239]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.920188][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.920322][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.920484][  T239] RIP: 0033:0x7f0d6081ebcb
[   16.920620][  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
[   16.921099][  T239] RSP: 002b:00007ffe1afa0868 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   16.921298][  T239] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0d6081ebcb
[   16.921493][  T239] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.921688][  T239] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.921895][  T239] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe1afa2a90
[   16.922093][  T239] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe1afa4875
| [   16.957373][  T240] ------------[ cut here ]------------
| [   16.957521][  T240] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/240
| [   16.957751][  T240] Modules linked in:
| [   16.958799][  T240] Tainted: [W]=WARN
[   16.958956][  T240] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.959119][  T240] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.959292][  T240] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.959761][  T240] RSP: 0018:ffa0000000ad7a80 EFLAGS: 00010286
[   16.959994][  T240] RAX: 00000000ffffffa6 RBX: ff110000118d0740 RCX: 1ff400000015af16
[   16.960190][  T240] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000118d07fc
[   16.960384][  T240] RBP: ff1100000a4fc000 R08: 1fe220000231a101 R09: ff1100000fe88b80
[   16.960582][  T240] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.960776][  T240] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a4fc000
[   16.961041][  T240] FS:  00007f38055c5840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   16.961272][  T240] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.961437][  T240] CR2: 00007f38057d1690 CR3: 0000000012d96003 CR4: 0000000000771ef0
[   16.961634][  T240] PKRU: 55555554
[   16.961735][  T240] Call Trace:
[   16.961874][  T240]  <TASK>
[   16.961943][  T240]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.962075][  T240]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.962208][  T240]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.962308][  T240]  register_netdevice (net/core/dev.c:11488)
[   16.962442][  T240]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.962608][  T240]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.962742][  T240]  register_netdev (net/core/dev.c:11552)
[   16.962884][  T240]  loopback_net_init (drivers/net/loopback.c:218)
[   16.963019][  T240]  ops_init (net/core/net_namespace.c:137)
[   16.963121][  T240]  setup_net (net/core/net_namespace.c:446)
[   16.963221][  T240]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.963354][  T240]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.963486][  T240]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.963619][  T240]  copy_net_ns (net/core/net_namespace.c:579)
[   16.963753][  T240]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.963899][  T240]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.964032][  T240]  ksys_unshare (kernel/fork.c:3243)
[   16.964162][  T240]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.964294][  T240]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.964427][  T240]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.964561][  T240]  ? __ia32_sys_open (fs/open.c:1374)
[   16.964696][  T240]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.964840][  T240]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.964975][  T240]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.965105][  T240]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.965234][  T240]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.965366][  T240]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.965530][  T240] RIP: 0033:0x7f3805887bcb
[   16.965668][  T240] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.966143][  T240] RSP: 002b:00007ffe052b5848 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.966342][  T240] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3805887bcb
[   16.966536][  T240] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.966731][  T240] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.966933][  T240] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe052b7a70
[   16.967126][  T240] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe052b9875
| [   16.971732][  T240] ------------[ cut here ]------------
| [   16.971881][  T240] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/240
| [   16.972108][  T240] Modules linked in:
| [   16.972476][  T240] Tainted: [W]=WARN
[   16.972575][  T240] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.972738][  T240] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.972917][  T240] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.973382][  T240] RSP: 0018:ffa0000000ad7918 EFLAGS: 00010286
[   16.973547][  T240] RAX: 00000000ffffffa6 RBX: ff1100000c372580 RCX: 1ff400000015aee9
[   16.973743][  T240] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c37263c
[   16.974453][  T240] RBP: ff110000058f1000 R08: 1fe220000186e4c9 R09: ff1100000fe88b80
[   16.974648][  T240] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   16.974900][  T240] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000058f1000
[   16.975099][  T240] FS:  00007f38055c5840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   16.975332][  T240] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.975498][  T240] CR2: 00007f38057d1690 CR3: 0000000012d96003 CR4: 0000000000771ef0
[   16.975696][  T240] PKRU: 55555554
[   16.975796][  T240] Call Trace:
[   16.975949][  T240]  <TASK>
[   16.976018][  T240]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.976148][  T240]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.976281][  T240]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.976381][  T240]  register_netdevice (net/core/dev.c:11488)
[   16.976514][  T240]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.976732][  T240]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.976925][  T240]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   16.977059][  T240]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   16.977190][  T240]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   16.977323][  T240]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   16.977453][  T240]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   16.977586][  T240]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   16.977719][  T240]  ops_init (net/core/net_namespace.c:137)
[   16.977825][  T240]  setup_net (net/core/net_namespace.c:446)
[   16.977979][  T240]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.978111][  T240]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.978242][  T240]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.978375][  T240]  copy_net_ns (net/core/net_namespace.c:579)
[   16.978506][  T240]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.978637][  T240]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.978767][  T240]  ksys_unshare (kernel/fork.c:3243)
[   16.978957][  T240]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.979088][  T240]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.979219][  T240]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.979349][  T240]  ? __ia32_sys_open (fs/open.c:1374)
[   16.979483][  T240]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.979615][  T240]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.979746][  T240]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.979938][  T240]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.980069][  T240]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.980200][  T240]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.980361][  T240] RIP: 0033:0x7f3805887bcb
[   16.980498][  T240] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.981025][  T240] RSP: 002b:00007ffe052b5848 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.981223][  T240] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3805887bcb
[   16.981417][  T240] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.981614][  T240] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.981815][  T240] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe052b7a70
[   16.982068][  T240] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe052b9875
| [   16.986457][  T240] ------------[ cut here ]------------
| [   16.986640][  T240] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/240
| [   16.986948][  T240] Modules linked in:
| [   16.987416][  T240] Tainted: [W]=WARN
[   16.987562][  T240] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.987777][  T240] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.988019][  T240] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.988537][  T240] RSP: 0018:ffa0000000ad78f8 EFLAGS: 00010286
[   16.988756][  T240] RAX: 00000000ffffffa6 RBX: ff1100000c83c900 RCX: 1ff400000015aee5
[   16.989015][  T240] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c83c9bc
[   16.989270][  T240] RBP: ff11000008e24000 R08: 1fe2200001907939 R09: ff1100000fe88b80
[   16.989514][  T240] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   16.989757][  T240] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008e24000
[   16.990019][  T240] FS:  00007f38055c5840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   16.990330][  T240] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.990541][  T240] CR2: 00005585389d6d5c CR3: 0000000012d96005 CR4: 0000000000771ef0
[   16.990786][  T240] PKRU: 55555554
[   16.990952][  T240] Call Trace:
[   16.991101][  T240]  <TASK>
[   16.991217][  T240]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.991397][  T240]  ? notifier_call_chain (kernel/notifier.c:85)
[   16.991576][  T240]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.991726][  T240]  register_netdevice (net/core/dev.c:11488)
[   16.991930][  T240]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   16.992144][  T240]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   16.992329][  T240]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   16.992508][  T240]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   16.992688][  T240]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   16.992895][  T240]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   16.993077][  T240]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   16.993259][  T240]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   16.993440][  T240]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   16.993622][  T240]  vti_init_net (net/ipv4/ip_vti.c:517)
[   16.993814][  T240]  ops_init (net/core/net_namespace.c:137)
[   16.993981][  T240]  setup_net (net/core/net_namespace.c:446)
[   16.994129][  T240]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   16.994309][  T240]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   16.994488][  T240]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   16.994670][  T240]  copy_net_ns (net/core/net_namespace.c:579)
[   16.994874][  T240]  create_new_namespaces (kernel/nsproxy.c:132)
[   16.995060][  T240]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   16.995240][  T240]  ksys_unshare (kernel/fork.c:3243)
[   16.995420][  T240]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.995599][  T240]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   16.995779][  T240]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   16.995984][  T240]  ? __ia32_sys_open (fs/open.c:1374)
[   16.996167][  T240]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   16.996350][  T240]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.996529][  T240]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.996709][  T240]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.996911][  T240]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.997092][  T240]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.997303][  T240] RIP: 0033:0x7f3805887bcb
[   16.997489][  T240] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.998029][  T240] RSP: 002b:00007ffe052b5848 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   16.998276][  T240] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3805887bcb
[   16.998520][  T240] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   16.998767][  T240] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   16.999033][  T240] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe052b7a70
[   16.999277][  T240] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe052b9875
| [   17.010297][  T240] ------------[ cut here ]------------
| [   17.010476][  T240] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/240
| [   17.010752][  T240] Modules linked in:
| [   17.011239][  T240] Tainted: [W]=WARN
[   17.011386][  T240] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.011595][  T240] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.011824][  T240] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.012351][  T240] RSP: 0018:ffa0000000ad7a78 EFLAGS: 00010286
[   17.012566][  T240] RAX: 00000000ffffffa6 RBX: ff1100000dbdfa80 RCX: 1ff400000015af15
[   17.012815][  T240] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbdfb3c
[   17.013072][  T240] RBP: ff1100000a3ec000 R08: 1fe2200001b7bf69 R09: ff1100000fe88b80
[   17.013316][  T240] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.013559][  T240] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a3ec000
[   17.013814][  T240] FS:  00007f38055c5840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   17.014103][  T240] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.014319][  T240] CR2: 00005585389d6d5c CR3: 0000000012d96005 CR4: 0000000000771ef0
[   17.014562][  T240] PKRU: 55555554
[   17.014707][  T240] Call Trace:
[   17.014873][  T240]  <TASK>
[   17.014989][  T240]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.015171][  T240]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.015352][  T240]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.015502][  T240]  register_netdevice (net/core/dev.c:11488)
[   17.015682][  T240]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.015913][  T240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.016097][  T240]  register_netdev (net/core/dev.c:11552)
[   17.016280][  T240]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   17.016462][  T240]  ops_init (net/core/net_namespace.c:137)
[   17.016610][  T240]  setup_net (net/core/net_namespace.c:446)
[   17.016757][  T240]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.016949][  T240]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.017130][  T240]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.017312][  T240]  copy_net_ns (net/core/net_namespace.c:579)
[   17.017492][  T240]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.017674][  T240]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.017873][  T240]  ksys_unshare (kernel/fork.c:3243)
[   17.018059][  T240]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.018241][  T240]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.018422][  T240]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.018605][  T240]  ? __ia32_sys_open (fs/open.c:1374)
[   17.018788][  T240]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.018989][  T240]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.019170][  T240]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.019351][  T240]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.019535][  T240]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.019716][  T240]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.019949][  T240] RIP: 0033:0x7f3805887bcb
[   17.020136][  T240] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.020658][  T240] RSP: 002b:00007ffe052b5848 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   17.020928][  T240] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3805887bcb
[   17.021177][  T240] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.021424][  T240] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.021673][  T240] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe052b7a70
[   17.021944][  T240] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe052b9875
| [   17.026718][  T240] ------------[ cut here ]------------
| [   17.026915][  T240] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/240
| [   17.027189][  T240] Modules linked in:
| [   17.027650][  T240] Tainted: [W]=WARN
[   17.027806][  T240] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.028036][  T240] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.028256][  T240] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.028768][  T240] RSP: 0018:ffa0000000ad7a68 EFLAGS: 00010286
[   17.029008][  T240] RAX: 00000000ffffffa6 RBX: ff1100000dbdec80 RCX: 1ff400000015af13
[   17.029251][  T240] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbded3c
[   17.029494][  T240] RBP: ff1100000786c000 R08: 1fe2200001b7bda9 R09: ff1100000fe88b80
[   17.029737][  T240] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.030002][  T240] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000786c000
[   17.030252][  T240] FS:  00007f38055c5840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   17.030529][  T240] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.030741][  T240] CR2: 00005585389d6d5c CR3: 0000000012d96005 CR4: 0000000000771ef0
[   17.031008][  T240] PKRU: 55555554
[   17.031154][  T240] Call Trace:
[   17.031316][  T240]  <TASK>
[   17.031433][  T240]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.031613][  T240]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.031802][  T240]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.031963][  T240]  register_netdevice (net/core/dev.c:11488)
[   17.032143][  T240]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.032357][  T240]  register_netdev (net/core/dev.c:11552)
[   17.032541][  T240]  sit_init_net (net/ipv6/sit.c:1860)
[   17.032723][  T240]  ops_init (net/core/net_namespace.c:137)
[   17.032891][  T240]  setup_net (net/core/net_namespace.c:446)
[   17.033042][  T240]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.033220][  T240]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.033416][  T240]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.033600][  T240]  copy_net_ns (net/core/net_namespace.c:579)
[   17.033781][  T240]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.033987][  T240]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.034168][  T240]  ksys_unshare (kernel/fork.c:3243)
[   17.034348][  T240]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.034528][  T240]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.034709][  T240]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.034916][  T240]  ? __ia32_sys_open (fs/open.c:1374)
[   17.035100][  T240]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.035283][  T240]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.035462][  T240]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.035642][  T240]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.035847][  T240]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.036031][  T240]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.036242][  T240] RIP: 0033:0x7f3805887bcb
[   17.036428][  T240] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.036967][  T240] RSP: 002b:00007ffe052b5848 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   17.037244][  T240] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3805887bcb
[   17.037491][  T240] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.037740][  T240] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.038007][  T240] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe052b7a70
[   17.038252][  T240] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe052b9875
| [   17.047674][  T240] ------------[ cut here ]------------
| [   17.047872][  T240] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/240
| [   17.048150][  T240] Modules linked in:
| [   17.048617][  T240] Tainted: [W]=WARN
[   17.048765][  T240] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.049000][  T240] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.049223][  T240] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.049742][  T240] RSP: 0018:ffa0000000ad7a78 EFLAGS: 00010286
[   17.049978][  T240] RAX: 00000000ffffffa6 RBX: ff1100000beb3e00 RCX: 1ff400000015af15
[   17.050221][  T240] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000beb3ebc
[   17.050466][  T240] RBP: ff1100000f224000 R08: 1fe22000017d67d9 R09: ff1100000fe88b80
[   17.050712][  T240] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.050978][  T240] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f224000
[   17.051225][  T240] FS:  00007f38055c5840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   17.051504][  T240] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.051718][  T240] CR2: 00005585389d6d5c CR3: 0000000012d96005 CR4: 0000000000771ef0
[   17.051983][  T240] PKRU: 55555554
[   17.052128][  T240] Call Trace:
[   17.052275][  T240]  <TASK>
[   17.052392][  T240]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.052573][  T240]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.052754][  T240]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.052919][  T240]  register_netdevice (net/core/dev.c:11488)
[   17.053105][  T240]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   17.053316][  T240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.053499][  T240]  register_netdev (net/core/dev.c:11552)
[   17.053681][  T240]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   17.053883][  T240]  ops_init (net/core/net_namespace.c:137)
[   17.054033][  T240]  setup_net (net/core/net_namespace.c:446)
[   17.054182][  T240]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   17.054363][  T240]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   17.054544][  T240]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   17.054726][  T240]  copy_net_ns (net/core/net_namespace.c:579)
[   17.054931][  T240]  create_new_namespaces (kernel/nsproxy.c:132)
[   17.055118][  T240]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   17.055299][  T240]  ksys_unshare (kernel/fork.c:3243)
[   17.055480][  T240]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.055663][  T240]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   17.055863][  T240]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   17.056046][  T240]  ? __ia32_sys_open (fs/open.c:1374)
[   17.056233][  T240]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   17.056411][  T240]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.056591][  T240]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.056770][  T240]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.056973][  T240]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.057157][  T240]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.057366][  T240] RIP: 0033:0x7f3805887bcb
[   17.057552][  T240] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.058083][  T240] RSP: 002b:00007ffe052b5848 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   17.058333][  T240] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3805887bcb
[   17.058577][  T240] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   17.058827][  T240] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   17.059083][  T240] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe052b7a70
[   17.059331][  T240] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe052b9875
| [   17.153377][  T243] ------------[ cut here ]------------
| [   17.153545][  T243] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/243
| [   17.153784][  T243] Modules linked in:
| [   17.154347][  T243] Tainted: [W]=WARN
[   17.154450][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.154619][  T243] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.154803][  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
[   17.155300][  T243] RSP: 0018:ffa0000000b06e30 EFLAGS: 00010286
[   17.155472][  T243] RAX: 00000000ffffffa6 RBX: ff1100000dbf5a80 RCX: 1ff4000000160d8c
[   17.155674][  T243] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbf5b3c
[   17.155883][  T243] RBP: ff1100000dce9000 R08: 1fe2200001b7eb69 R09: ff1100000f562e80
[   17.156084][  T243] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   17.156285][  T243] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000b921210
[   17.156490][  T243] FS:  00007f79efffe840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   17.156730][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.156911][  T243] CR2: 000000000042ebe0 CR3: 0000000013035003 CR4: 0000000000771ef0
[   17.157117][  T243] PKRU: 55555554
[   17.157221][  T243] Call Trace:
[   17.157323][  T243]  <TASK>
[   17.157394][  T243]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.157532][  T243]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.157634][  T243]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   17.157858][  T243]  __dev_notify_flags (net/core/dev.c:9787)
[   17.157999][  T243]  ? netif_change_name (net/core/dev.c:1495)
[   17.158137][  T243]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   17.158275][  T243]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   17.158446][  T243]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   17.158581][  T243]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.158718][  T243]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   17.158866][  T243]  veth_newlink (drivers/net/veth.c:1871)
[   17.159003][  T243]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   17.159139][  T243]  ? kasan_save_stack (mm/kasan/common.c:57)
[   17.159276][  T243]  ? kasan_save_track (mm/kasan/common.c:78)
[   17.159409][  T243]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   17.159561][  T243]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   17.159697][  T243]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   17.159844][  T243]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   17.159982][  T243]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   17.160120][  T243]  ? rtnl_create_link (net/core/rtnetlink.c:3733)
[   17.160256][  T243]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   17.160394][  T243]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   17.160530][  T243]  ? __dev_get_by_name (net/core/dev.c:883)
[   17.160666][  T243]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   17.160811][  T243]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   17.160954][  T243]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.161093][  T243]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.161230][  T243]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.161366][  T243]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.161501][  T243]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.161634][  T243]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.161774][  T243]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.161917][  T243]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.162053][  T243]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.162189][  T243]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.162323][  T243]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.162458][  T243]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.162596][  T243]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.162731][  T243]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.162878][  T243]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.163016][  T243]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.163151][  T243]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.163291][  T243]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.163426][  T243]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.163563][  T243]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.163700][  T243]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.163842][  T243]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.163979][  T243]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.164115][  T243]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.164251][  T243]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.164389][  T243]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.164526][  T243]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.164661][  T243]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.164907][  T243]  ? move_addr_to_kernel (net/socket.c:258)
[   17.165048][  T243]  ___sys_sendmsg (net/socket.c:2752)
[   17.165184][  T243]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.165323][  T243]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.165496][  T243]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   17.165634][  T243]  __sys_sendmsg (net/socket.c:2784)
[   17.165770][  T243]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.165918][  T243]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   17.166054][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.166191][  T243]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.166327][  T243]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.166462][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.166598][  T243]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.166766][  T243] RIP: 0033:0x7f79f023808e
[   17.166916][  T243] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.167397][  T243] RSP: 002b:00007ffd684fb0f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.167602][  T243] RAX: ffffffffffffffda RBX: 00007ffd684fb8a8 RCX: 00007f79f023808e
[   17.167806][  T243] RDX: 0000000000000000 RSI: 00007ffd684fb1a0 RDI: 0000000000000005
[   17.168012][  T243] RBP: 00007ffd684fb100 R08: 0000000000000000 R09: 0000000000000000
[   17.168213][  T243] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c0
[   17.168415][  T243] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd684fb860
| [   17.182606][  T243] ------------[ cut here ]------------
| [   17.182749][  T243] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/243
| [   17.182998][  T243] Modules linked in:
| [   17.183374][  T243] Tainted: [W]=WARN
[   17.183475][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.183643][  T243] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.183825][  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
[   17.184306][  T243] RSP: 0018:ffa0000000b071b0 EFLAGS: 00010286
[   17.184473][  T243] RAX: 00000000ffffffa6 RBX: ff110000118d0200 RCX: 1ff4000000160dfc
[   17.184673][  T243] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000118d02bc
[   17.184882][  T243] RBP: ff1100000a3cc000 R08: 1fe220000231a059 R09: ff1100000f562e80
[   17.185081][  T243] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   17.185278][  T243] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa8c03b20
[   17.185480][  T243] FS:  00007f79efffe840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   17.185716][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.185895][  T243] CR2: 000000000042ebe0 CR3: 0000000013035003 CR4: 0000000000771ef0
[   17.186093][  T243] PKRU: 55555554
[   17.186194][  T243] Call Trace:
[   17.186294][  T243]  <TASK>
[   17.186363][  T243]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.186499][  T243]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.186602][  T243]  __dev_notify_flags (net/core/dev.c:9787)
[   17.186737][  T243]  ? netif_change_name (net/core/dev.c:1495)
[   17.186879][  T243]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   17.187016][  T243]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   17.187152][  T243]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   17.187287][  T243]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   17.187422][  T243]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   17.187557][  T243]  ? __dev_get_by_name (net/core/dev.c:883)
[   17.187691][  T243]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   17.187840][  T243]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   17.187981][  T243]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.188117][  T243]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.188251][  T243]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.188385][  T243]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.188518][  T243]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.188653][  T243]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.188795][  T243]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.189023][  T243]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.189157][  T243]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.189289][  T243]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.189421][  T243]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.189553][  T243]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.189689][  T243]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.189826][  T243]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.189964][  T243]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.190097][  T243]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.190230][  T243]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.190366][  T243]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.190500][  T243]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.190634][  T243]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.190772][  T243]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.190911][  T243]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.191045][  T243]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.191180][  T243]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.191316][  T243]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.191453][  T243]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.191587][  T243]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.191722][  T243]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.191897][  T243]  ? move_addr_to_kernel (net/socket.c:258)
[   17.192035][  T243]  ___sys_sendmsg (net/socket.c:2752)
[   17.192167][  T243]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.192306][  T243]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.192477][  T243]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   17.192613][  T243]  __sys_sendmsg (net/socket.c:2784)
[   17.192750][  T243]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.192899][  T243]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   17.193036][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.193172][  T243]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.193306][  T243]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.193438][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.193571][  T243]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.193736][  T243] RIP: 0033:0x7f79f023808e
[   17.193884][  T243] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.194361][  T243] RSP: 002b:00007ffd684fb0f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.194562][  T243] RAX: ffffffffffffffda RBX: 00007ffd684fb8a8 RCX: 00007f79f023808e
[   17.194762][  T243] RDX: 0000000000000000 RSI: 00007ffd684fb1a0 RDI: 0000000000000005
[   17.194972][  T243] RBP: 00007ffd684fb100 R08: 0000000000000000 R09: 0000000000000000
[   17.195172][  T243] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c0
[   17.195370][  T243] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd684fb860
| [   17.233148][  T244] ------------[ cut here ]------------
| [   17.233303][  T244] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/244
| [   17.233532][  T244] Modules linked in:
| [   17.234073][  T244] Tainted: [W]=WARN
[   17.234174][  T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.234334][  T244] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.234505][  T244] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.234981][  T244] RSP: 0018:ffa0000000b17020 EFLAGS: 00010286
[   17.235147][  T244] RAX: 00000000ffffffa6 RBX: ff11000004c863c0 RCX: 1ff4000000162dca
[   17.235339][  T244] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004c8647c
[   17.235532][  T244] RBP: ff1100000a3cc000 R08: 1fe2200000990c91 R09: ff1100000fba2e58
[   17.235728][  T244] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   17.235932][  T244] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   17.236128][  T244] FS:  00007f4c8e27e840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   17.236355][  T244] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.236519][  T244] CR2: 000000002f985988 CR3: 000000000f21c006 CR4: 0000000000771ef0
[   17.236715][  T244] PKRU: 55555554
[   17.236816][  T244] Call Trace:
[   17.236919][  T244]  <TASK>
[   17.236986][  T244]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.237119][  T244]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.237218][  T244]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   17.237348][  T244]  __dev_notify_flags (net/core/dev.c:9787)
[   17.237480][  T244]  ? netif_change_name (net/core/dev.c:1495)
[   17.237610][  T244]  ? __dev_change_flags (net/core/dev.c:9752)
[   17.237741][  T244]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   17.237878][  T244]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.238008][  T244]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   17.238141][  T244]  netif_change_flags (net/core/dev.c:9820)
[   17.238273][  T244]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   17.238404][  T244]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   17.238536][  T244]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   17.238666][  T244]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   17.238839][  T244]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.238970][  T244]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.239098][  T244]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.239228][  T244]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.239361][  T244]  ? __kernel_text_address (kernel/extable.c:79)
[   17.239492][  T244]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.239623][  T244]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.239753][  T244]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   17.239924][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.240054][  T244]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.240184][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.240314][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.240443][  T244]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   17.240574][  T244]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   17.240704][  T244]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   17.240843][  T244]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   17.240974][  T244]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   17.241106][  T244]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   17.241239][  T244]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.241371][  T244]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.241499][  T244]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.241628][  T244]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.241756][  T244]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.241897][  T244]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.242030][  T244]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.242161][  T244]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.242290][  T244]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.242421][  T244]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.242554][  T244]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.242685][  T244]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.242821][  T244]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.242956][  T244]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.243084][  T244]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.243216][  T244]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.243346][  T244]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.243477][  T244]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.243604][  T244]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.243734][  T244]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.243876][  T244]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.244006][  T244]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.244138][  T244]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.244268][  T244]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.244399][  T244]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.244531][  T244]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.244661][  T244]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.244798][  T244]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.244935][  T244]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.245064][  T244]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.245192][  T244]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.245371][  T244]  ? move_addr_to_kernel (net/socket.c:258)
[   17.245502][  T244]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.245631][  T244]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.245761][  T244]  ___sys_sendmsg (net/socket.c:2752)
[   17.245901][  T244]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   17.246063][  T244]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.246205][  T244]  __sys_sendmsg (net/socket.c:2784)
[   17.246337][  T244]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.246467][  T244]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   17.246631][  T244]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   17.246764][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.246906][  T244]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.247037][  T244]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.247168][  T244]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.247298][  T244]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.247460][  T244] RIP: 0033:0x7f4c8e4b808e
[   17.247596][  T244] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.248069][  T244] RSP: 002b:00007ffc8b52f700 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.248268][  T244] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4c8e4b808e
[   17.248461][  T244] RDX: 0000000000000000 RSI: 00007ffc8b52f7b0 RDI: 0000000000000005
[   17.248655][  T244] RBP: 00007ffc8b52f710 R08: 0000000000000000 R09: 0000000000000000
[   17.248860][  T244] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c0
[   17.249054][  T244] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc8b52fe80
| [   17.284179][  T246] ------------[ cut here ]------------
| [   17.284342][  T246] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/246
| [   17.284569][  T246] Modules linked in:
| [   17.284950][  T246] Tainted: [W]=WARN
[   17.285054][  T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.285216][  T246] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.285390][  T246] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.285955][  T246] RSP: 0018:ffa0000000b27020 EFLAGS: 00010286
[   17.286119][  T246] RAX: 00000000ffffffa6 RBX: ff11000009885700 RCX: 1ff4000000164dca
[   17.286317][  T246] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098857bc
[   17.286515][  T246] RBP: ff1100000dce9000 R08: 1fe2200001310af9 R09: ff1100000f80d158
[   17.286709][  T246] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   17.286982][  T246] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   17.287267][  T246] FS:  00007fceee89c840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   17.287497][  T246] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.287662][  T246] CR2: 0000000033530988 CR3: 0000000013035005 CR4: 0000000000771ef0
[   17.287940][  T246] PKRU: 55555554
[   17.288038][  T246] Call Trace:
[   17.288135][  T246]  <TASK>
[   17.288202][  T246]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.288335][  T246]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.288434][  T246]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   17.288565][  T246]  __dev_notify_flags (net/core/dev.c:9787)
[   17.288698][  T246]  ? netif_change_name (net/core/dev.c:1495)
[   17.288831][  T246]  ? __dev_change_flags (net/core/dev.c:9752)
[   17.289010][  T246]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   17.289141][  T246]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.289271][  T246]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   17.289406][  T246]  netif_change_flags (net/core/dev.c:9820)
[   17.289536][  T246]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   17.289669][  T246]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   17.289807][  T246]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   17.289943][  T246]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   17.290108][  T246]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.290238][  T246]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.290368][  T246]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.290497][  T246]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.290629][  T246]  ? __kernel_text_address (kernel/extable.c:79)
[   17.290760][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.290904][  T246]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.291034][  T246]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   17.291164][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.291295][  T246]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.291426][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.291557][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.291686][  T246]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   17.291822][  T246]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   17.291958][  T246]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   17.292089][  T246]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   17.292220][  T246]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   17.292356][  T246]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   17.292492][  T246]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.292623][  T246]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.292753][  T246]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.292890][  T246]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.293021][  T246]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.293152][  T246]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.293282][  T246]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.293410][  T246]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.293539][  T246]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.293668][  T246]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.293803][  T246]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.293938][  T246]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.294068][  T246]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.294196][  T246]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.294325][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.294456][  T246]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.294586][  T246]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.294717][  T246]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.294862][  T246]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.294991][  T246]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.295126][  T246]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.295256][  T246]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.295389][  T246]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.295521][  T246]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.295650][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.295780][  T246]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.295924][  T246]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.296055][  T246]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.296187][  T246]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.296318][  T246]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.296447][  T246]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.296610][  T246]  ? move_addr_to_kernel (net/socket.c:258)
[   17.296742][  T246]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.296884][  T246]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.297015][  T246]  ___sys_sendmsg (net/socket.c:2752)
[   17.297144][  T246]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   17.297307][  T246]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.297455][  T246]  __sys_sendmsg (net/socket.c:2784)
[   17.297584][  T246]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.297713][  T246]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   17.297884][  T246]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   17.298014][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.298146][  T246]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.298277][  T246]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.298408][  T246]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.298540][  T246]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.298706][  T246] RIP: 0033:0x7fceeead608e
[   17.298856][  T246] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.299321][  T246] RSP: 002b:00007ffc096cafb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.299519][  T246] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fceeead608e
[   17.299712][  T246] RDX: 0000000000000000 RSI: 00007ffc096cb060 RDI: 0000000000000005
[   17.299917][  T246] RBP: 00007ffc096cafc0 R08: 0000000000000000 R09: 0000000000000000
[   17.300111][  T246] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c0
[   17.300304][  T246] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc096cb730
| [   17.302581][   T94] ------------[ cut here ]------------
| [   17.302748][   T94] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/94
| [   17.303065][   T94] Modules linked in:
| [   17.303669][   T94] Tainted: [W]=WARN
[   17.303885][   T94] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.304170][   T94] Workqueue: events_unbound linkwatch_event
[   17.304398][   T94] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.304613][   T94] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.305195][   T94] RSP: 0018:ffa00000004b79e0 EFLAGS: 00010286
[   17.305398][   T94] RAX: 00000000ffffffa6 RBX: ff11000009885000 RCX: 1ff4000000096f02
[   17.305626][   T94] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098850bc
[   17.305907][   T94] RBP: ff1100000a3cc000 R08: 1fe2200001310a19 R09: ff1100000dda51a8
[   17.306217][   T94] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   17.306450][   T94] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   17.306679][   T94] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   17.306966][   T94] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.307239][   T94] CR2: 00005585389d6d5c CR3: 000000000f7cf004 CR4: 0000000000771ef0
[   17.307555][   T94] PKRU: 55555554
[   17.307746][   T94] Call Trace:
[   17.307959][   T94]  <TASK>
[   17.308103][   T94]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.308278][   T94]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.308508][   T94]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.308697][   T94]  netif_state_change (net/core/dev.c:1605)
[   17.308956][   T94]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   17.309237][   T94]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   17.309455][   T94]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   17.309625][   T94]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.309962][   T94]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   17.310171][   T94]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   17.310341][   T94]  process_one_work (kernel/workqueue.c:3314)
[   17.310515][   T94]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   17.310681][   T94]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.310878][   T94]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   17.311048][   T94]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   17.311214][   T94]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   17.311382][   T94]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   17.311550][   T94]  kthread (kernel/kthread.c:436)
[   17.311688][   T94]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.311906][   T94]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.312073][   T94]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.312244][   T94]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   17.312439][   T94]  ? trace_x86_fpu_regs_deactivated (./arch/x86/include/asm/trace/fpu.h:52 (discriminator 22))
[   17.312638][   T94]  ? save_fpregs_to_fpstate (arch/x86/kernel/fpu/core.c:144)
[   17.312811][   T94]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.312990][   T94]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.313159][   T94]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   17.338265][  T247] ------------[ cut here ]------------
| [   17.338411][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/247
| [   17.338643][  T247] Modules linked in:
| [   17.339651][  T247] Tainted: [W]=WARN
[   17.339752][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.339926][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.340096][  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
[   17.340559][  T247] RSP: 0018:ffa0000000b37050 EFLAGS: 00010286
[   17.340723][  T247] RAX: 00000000ffffffa6 RBX: ff1100000dbf1700 RCX: 1ff4000000166dd0
[   17.340928][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbf17bc
[   17.341123][  T247] RBP: ff1100000a3cc000 R08: 1fe2200001b7e2f9 R09: ff1100000fa38b80
[   17.341319][  T247] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   17.341515][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   17.341711][  T247] FS:  00007f3015368840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   17.341947][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.342110][  T247] CR2: 00007f30156f0900 CR3: 000000000c986001 CR4: 0000000000771ef0
[   17.342306][  T247] PKRU: 55555554
[   17.342402][  T247] Call Trace:
[   17.342498][  T247]  <TASK>
[   17.342566][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.342696][  T247]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   17.342839][  T247]  notifier_call_chain (kernel/notifier.c:85)
[   17.342972][  T247]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   17.343103][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.343238][  T247]  ? netif_set_group (net/core/dev.c:9947)
[   17.343371][  T247]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   17.343535][  T247]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   17.343668][  T247]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   17.343802][  T247]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   17.343942][  T247]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   17.344104][  T247]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.344237][  T247]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.344369][  T247]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.344498][  T247]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.344637][  T247]  ? __kernel_text_address (kernel/extable.c:79)
[   17.344767][  T247]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.344907][  T247]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.345037][  T247]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   17.345169][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.345299][  T247]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.345427][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.345555][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.345685][  T247]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   17.345823][  T247]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   17.345955][  T247]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   17.346091][  T247]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   17.346226][  T247]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   17.346369][  T247]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.346506][  T247]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.346637][  T247]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.346775][  T247]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.346911][  T247]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.347039][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.347171][  T247]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.347299][  T247]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.347427][  T247]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.347555][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.347685][  T247]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.347820][  T247]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.347960][  T247]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.348088][  T247]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.348215][  T247]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.348345][  T247]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.348472][  T247]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.348607][  T247]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.348737][  T247]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.348875][  T247]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.349008][  T247]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.349137][  T247]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.349269][  T247]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.349400][  T247]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.349530][  T247]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.349661][  T247]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.349795][  T247]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.349933][  T247]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.350065][  T247]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.350195][  T247]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.350327][  T247]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.350486][  T247]  ? move_addr_to_kernel (net/socket.c:258)
[   17.350617][  T247]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.350748][  T247]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.350889][  T247]  ___sys_sendmsg (net/socket.c:2752)
[   17.351018][  T247]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   17.351179][  T247]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.351324][  T247]  __sys_sendmsg (net/socket.c:2784)
[   17.351453][  T247]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.351581][  T247]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   17.351747][  T247]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   17.351888][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.352019][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.352150][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.352282][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.352411][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.352573][  T247] RIP: 0033:0x7f30155a208e
[   17.352710][  T247] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.353191][  T247] RSP: 002b:00007ffff47e0cb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.353385][  T247] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f30155a208e
[   17.353579][  T247] RDX: 0000000000000000 RSI: 00007ffff47e0d60 RDI: 0000000000000005
[   17.353774][  T247] RBP: 00007ffff47e0cc0 R08: 0000000000000000 R09: 0000000000000000
[   17.353978][  T247] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c1
[   17.354176][  T247] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffff47e1430
| [   17.391452][  T248] ------------[ cut here ]------------
| [   17.391607][  T248] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/248
| [   17.391845][  T248] Modules linked in:
| [   17.392242][  T248] Tainted: [W]=WARN
[   17.392341][  T248] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.392502][  T248] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.392671][  T248] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.393140][  T248] RSP: 0018:ffa0000000b47150 EFLAGS: 00010286
[   17.393303][  T248] RAX: 00000000ffffffa6 RBX: ff1100000dbf03c0 RCX: 1ff4000000168df0
[   17.393495][  T248] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbf047c
[   17.393690][  T248] RBP: ff1100000dce9000 R08: 1fe2200001b7e091 R09: ff1100000a718b58
[   17.393893][  T248] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   17.394084][  T248] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001250b4c0
[   17.394278][  T248] FS:  00007fe5ba70f840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   17.394506][  T248] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.394669][  T248] CR2: 00000000004ebb20 CR3: 000000000c986004 CR4: 0000000000771ef0
[   17.394876][  T248] PKRU: 55555554
[   17.394972][  T248] Call Trace:
[   17.395068][  T248]  <TASK>
[   17.395136][  T248]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.395266][  T248]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.395398][  T248]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.395498][  T248]  netif_state_change (net/core/dev.c:1605)
[   17.395627][  T248]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   17.395786][  T248]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   17.395960][  T248]  linkwatch_sync_dev (net/core/link_watch.c:295)
[   17.396089][  T248]  rtnl_getlink (net/core/rtnetlink.c:4273)
[   17.396217][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.396349][  T248]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.396477][  T248]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   17.396604][  T248]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.396733][  T248]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.396872][  T248]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.397017][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.397145][  T248]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.397273][  T248]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.397403][  T248]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.397531][  T248]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.397663][  T248]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.397798][  T248]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   17.397932][  T248]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.398061][  T248]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.398190][  T248]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.398321][  T248]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.398453][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.398582][  T248]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.398712][  T248]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.398876][  T248]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.399011][  T248]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.399144][  T248]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.399273][  T248]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.399405][  T248]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.399533][  T248]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.399663][  T248]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.399798][  T248]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.399935][  T248]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.400067][  T248]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.400198][  T248]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.400328][  T248]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.400456][  T248]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.400617][  T248]  ? move_addr_to_kernel (net/socket.c:258)
[   17.400747][  T248]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.400887][  T248]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   17.401048][  T248]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.401175][  T248]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   17.401340][  T248]  ___sys_sendmsg (net/socket.c:2752)
[   17.401470][  T248]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.401599][  T248]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.401735][  T248]  ? move_addr_to_user (./include/linux/uaccess.h:236 net/socket.c:302)
[   17.401873][  T248]  ? do_getsockname (net/socket.c:2192)
[   17.402005][  T248]  __sys_sendmsg (net/socket.c:2784)
[   17.402136][  T248]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.402271][  T248]  ? __sys_getsockname (net/socket.c:2210)
[   17.402400][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.402529][  T248]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.402661][  T248]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.402790][  T248]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.402929][  T248]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.403088][  T248] RIP: 0033:0x7fe5ba94908e
[   17.403224][  T248] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.403685][  T248] RSP: 002b:00007ffc0dd77b90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.403890][  T248] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe5ba94908e
[   17.404083][  T248] RDX: 0000000000000000 RSI: 00007ffc0dd77c40 RDI: 0000000000000006
[   17.404277][  T248] RBP: 00007ffc0dd77ba0 R08: 0000000000000000 R09: 0000000000000000
[   17.404469][  T248] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c0
[   17.404661][  T248] R13: 00007ffc0dd77cf0 R14: 0000000000000000 R15: 0000000000000004
| [   17.407027][  T248] ------------[ cut here ]------------
| [   17.407163][  T248] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/248
| [   17.407387][  T248] Modules linked in:
| [   17.407955][  T248] Tainted: [W]=WARN
[   17.408055][  T248] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.408218][  T248] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.408391][  T248] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.408866][  T248] RSP: 0018:ffa0000000b47050 EFLAGS: 00010286
[   17.409036][  T248] RAX: 00000000ffffffa6 RBX: ff1100000dbf4e40 RCX: 1ff4000000168dd0
[   17.409229][  T248] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbf4efc
[   17.409422][  T248] RBP: ff1100000dce9000 R08: 1fe2200001b7e9e1 R09: ff1100000a718b80
[   17.409618][  T248] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   17.409816][  T248] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   17.410019][  T248] FS:  00007fe5ba70f840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   17.410245][  T248] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.410409][  T248] CR2: 00007fe5baa97900 CR3: 000000000c986004 CR4: 0000000000771ef0
[   17.410605][  T248] PKRU: 55555554
[   17.410702][  T248] Call Trace:
[   17.410802][  T248]  <TASK>
[   17.410874][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.411005][  T248]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   17.411135][  T248]  notifier_call_chain (kernel/notifier.c:85)
[   17.411277][  T248]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   17.411409][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.411547][  T248]  ? netif_set_group (net/core/dev.c:9947)
[   17.411680][  T248]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   17.411848][  T248]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   17.411981][  T248]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   17.412115][  T248]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   17.412247][  T248]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   17.412410][  T248]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.412540][  T248]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.412671][  T248]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.412804][  T248]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.412941][  T248]  ? __kernel_text_address (kernel/extable.c:79)
[   17.413075][  T248]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.413209][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.413349][  T248]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   17.413481][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.413612][  T248]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.413742][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.413877][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.414010][  T248]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   17.414142][  T248]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   17.414272][  T248]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   17.414403][  T248]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   17.414537][  T248]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   17.414671][  T248]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   17.414814][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.414949][  T248]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.415094][  T248]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.415225][  T248]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.415355][  T248]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.415487][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.415616][  T248]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.415748][  T248]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.415891][  T248]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.416023][  T248]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   17.416153][  T248]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   17.416285][  T248]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.416416][  T248]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.416547][  T248]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.416679][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.416818][  T248]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.416955][  T248]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   17.417097][  T248]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.417228][  T248]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.417361][  T248]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.417493][  T248]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.417629][  T248]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.417761][  T248]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.417913][  T248]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.418045][  T248]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   17.418175][  T248]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   17.418321][  T248]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.418460][  T248]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   17.418590][  T248]  ? copy_msghdr_from_user (net/socket.c:2635)
[   17.418721][  T248]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   17.418891][  T248]  ? move_addr_to_kernel (net/socket.c:258)
[   17.419023][  T248]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.419153][  T248]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   17.419295][  T248]  ___sys_sendmsg (net/socket.c:2752)
[   17.419427][  T248]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   17.419593][  T248]  ? copy_msghdr_from_user (net/socket.c:2603)
[   17.419736][  T248]  __sys_sendmsg (net/socket.c:2784)
[   17.419890][  T248]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   17.420028][  T248]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   17.420196][  T248]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   17.420329][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.420465][  T248]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.420596][  T248]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.420728][  T248]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.420870][  T248]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.421034][  T248] RIP: 0033:0x7fe5ba94908e
[   17.421174][  T248] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.421651][  T248] RSP: 002b:00007ffc0dd79810 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.421856][  T248] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe5ba94908e
[   17.422051][  T248] RDX: 0000000000000000 RSI: 00007ffc0dd798c0 RDI: 0000000000000005
[   17.422247][  T248] RBP: 00007ffc0dd79820 R08: 0000000000000000 R09: 0000000000000000
[   17.422445][  T248] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c1
[   17.422640][  T248] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc0dd79f90
| [   20.522705][   T12] ------------[ cut here ]------------
| [   20.522947][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   20.523242][   T12] Modules linked in:
| [   20.523704][   T12] Tainted: [W]=WARN
[   20.523865][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.524063][   T12] Workqueue: netns cleanup_net
[   20.524237][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.524449][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.524998][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.525244][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bf6d000 RCX: 1ff4000000018eed
[   20.525559][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bf6d0bc
[   20.525788][   T12] RBP: ff1100000f224000 R08: 1fe22000017eda19 R09: ff11000001aed1d0
[   20.526029][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.526250][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.526478][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   20.526743][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.526961][   T12] CR2: 00005585389d6d5c CR3: 000000000f7cf004 CR4: 0000000000771ef0
[   20.527191][   T12] PKRU: 55555554
[   20.527327][   T12] Call Trace:
[   20.527463][   T12]  <TASK>
[   20.527573][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.527780][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.528000][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.528174][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.528346][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.528512][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.528683][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.528873][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.529044][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.529214][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.529386][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.529553][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.529719][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.529910][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.530080][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.530251][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.530422][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.530588][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.530762][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.530958][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.531127][   T12]  kthread (kernel/kthread.c:436)
[   20.531265][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.531463][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.531633][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.531821][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.532029][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.532201][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.532368][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.535096][   T12] ------------[ cut here ]------------
| [   20.535265][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   20.535546][   T12] Modules linked in:
| [   20.536196][   T12] Tainted: [W]=WARN
[   20.536380][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.536621][   T12] Workqueue: netns cleanup_net
[   20.536867][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.537127][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.537645][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.537877][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bf6c900 RCX: 1ff4000000018eed
[   20.538098][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bf6c9bc
[   20.538318][   T12] RBP: ff1100000786c000 R08: 1fe22000017ed939 R09: ff11000001aed1d0
[   20.538544][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.538767][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.539016][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   20.539270][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.539465][   T12] CR2: 00005585389d6d5c CR3: 000000003174d002 CR4: 0000000000771ef0
[   20.539695][   T12] PKRU: 55555554
[   20.539851][   T12] Call Trace:
[   20.539985][   T12]  <TASK>
[   20.540096][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.540300][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.540497][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.540667][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.540856][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.541026][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.541195][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.541364][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.541534][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.541703][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.541895][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.542065][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.542230][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.542397][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.542564][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.542733][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.542921][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.543089][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.543261][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.543434][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.543600][   T12]  kthread (kernel/kthread.c:436)
[   20.543738][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.543955][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.544124][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.544294][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.544494][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.544663][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.544854][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.548919][   T12] ------------[ cut here ]------------
| [   20.549083][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   20.549367][   T12] Modules linked in:
| [   20.549826][   T12] Tainted: [W]=WARN
[   20.549981][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.550177][   T12] Workqueue: netns cleanup_net
[   20.550359][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.550560][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.551152][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.551402][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bf6c200 RCX: 1ff4000000018eed
[   20.551669][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bf6c2bc
[   20.551958][   T12] RBP: ff1100000a3ec000 R08: 1fe22000017ed859 R09: ff11000001aed1d0
[   20.552224][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.552490][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.552758][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   20.553075][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.553325][   T12] CR2: 00005585389d6d5c CR3: 000000003174d002 CR4: 0000000000771ef0
[   20.553594][   T12] PKRU: 55555554
[   20.553773][   T12] Call Trace:
[   20.553969][   T12]  <TASK>
[   20.554122][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.554362][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.554598][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.554816][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.555040][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.555253][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.555464][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.555676][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.555908][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.556121][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.556334][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.556545][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.556753][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.556993][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.557207][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.557421][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.557661][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.557960][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.558261][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.558429][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.558600][   T12]  kthread (kernel/kthread.c:436)
[   20.558741][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.558961][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.559127][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.559294][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.559491][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.559656][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.559829][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.562318][   T12] ------------[ cut here ]------------
| [   20.562479][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   20.562754][   T12] Modules linked in:
| [   20.563859][   T12] Tainted: [W]=WARN
[   20.563996][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.564193][   T12] Workqueue: netns cleanup_net
[   20.564363][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.564562][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.565046][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.565240][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bf6c040 RCX: 1ff4000000018eed
[   20.565458][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bf6c0fc
[   20.565678][   T12] RBP: ff11000008e24000 R08: 1fe22000017ed821 R09: ff11000001aed1d0
[   20.565918][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.566138][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.566361][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   20.566611][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.566810][   T12] CR2: 00005585389d6d5c CR3: 000000003174d002 CR4: 0000000000771ef0
[   20.567046][   T12] PKRU: 55555554
[   20.567180][   T12] Call Trace:
[   20.567315][   T12]  <TASK>
[   20.567422][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.567618][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.567817][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.567996][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.568161][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.568325][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.568494][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.568660][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.568848][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.569012][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.569182][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.569349][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.569513][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.569677][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.569861][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.570029][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.570198][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.570361][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.570531][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.570706][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.570892][   T12]  kthread (kernel/kthread.c:436)
[   20.571028][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.571222][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.571388][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.571554][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.571748][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.571956][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.572120][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.574737][   T12] ------------[ cut here ]------------
| [   20.575312][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   20.575638][   T12] Modules linked in:
| [   20.576244][   T12] Tainted: [W]=WARN
[   20.576503][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.576743][   T12] Workqueue: netns cleanup_net
[   20.576985][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.577238][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.577764][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.578027][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e4e0740 RCX: 1ff4000000018eed
[   20.578292][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4e07fc
[   20.578562][   T12] RBP: ff110000058f1000 R08: 1fe2200001c9c101 R09: ff11000001aed1d0
[   20.578851][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   20.579193][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.579465][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   20.579859][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.580100][   T12] CR2: 00005585389d6d5c CR3: 000000003174d002 CR4: 0000000000771ef0
[   20.580370][   T12] PKRU: 55555554
[   20.580555][   T12] Call Trace:
[   20.580736][   T12]  <TASK>
[   20.580910][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.581155][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.581395][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.581609][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.581892][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.582115][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.582337][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.582637][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.582928][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.583219][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.583415][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.583582][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.583747][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.583945][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.584113][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.584282][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.584454][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.584624][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.584795][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.584984][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.585151][   T12]  kthread (kernel/kthread.c:436)
[   20.585288][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.585484][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.585651][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.585827][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.586187][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.586357][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.586525][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.600402][   T12] ------------[ cut here ]------------
| [   20.600595][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   20.601153][   T12] Modules linked in:
| [   20.601630][   T12] Tainted: [W]=WARN
[   20.601778][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.602005][   T12] Workqueue: netns cleanup_net
[   20.602183][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.602391][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.602907][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   20.603111][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e4e1380 RCX: 1ff4000000018eaf
[   20.603343][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e4e143c
[   20.603577][   T12] RBP: ff1100000dce9000 R08: 1fe2200001c9c289 R09: ff11000001aed1d0
[   20.603815][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   20.604064][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a3cc000
[   20.604299][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   20.604568][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.604773][   T12] CR2: 00005585389d6d5c CR3: 000000003174d002 CR4: 0000000000771ef0
[   20.605028][   T12] PKRU: 55555554
[   20.605168][   T12] Call Trace:
[   20.605310][   T12]  <TASK>
[   20.605425][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.605599][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.605748][   T12]  netif_close_many (net/core/dev.c:1804)
[   20.605955][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.606127][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.606300][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.606474][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   20.606647][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   20.606873][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   20.607081][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.607257][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.607460][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.607633][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.607811][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   20.608030][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   20.608206][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   20.608385][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   20.608560][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   20.608735][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   20.608927][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   20.609106][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.609289][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.609466][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.609645][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.609847][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.610023][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.610198][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.610373][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.610552][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.610756][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.610956][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.611134][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.611307][   T12]  kthread (kernel/kthread.c:436)
[   20.611476][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.611681][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.611873][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.612051][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.612263][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.612438][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.612625][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.615712][   T12] ------------[ cut here ]------------
| [   20.616332][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   20.616685][   T12] Modules linked in:
| [   20.617279][   T12] Tainted: [W]=WARN
[   20.617469][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.617720][   T12] Workqueue: netns cleanup_net
[   20.617984][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.618245][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.618788][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   20.619060][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b348e40 RCX: 1ff4000000018eaf
[   20.619298][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b348efc
[   20.619531][   T12] RBP: ff1100000a3cc000 R08: 1fe22000016691e1 R09: ff11000001aed1d0
[   20.619796][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   20.620048][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   20.620285][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   20.620552][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.620758][   T12] CR2: 00005585389d6d5c CR3: 000000003174d002 CR4: 0000000000771ef0
[   20.621012][   T12] PKRU: 55555554
[   20.621151][   T12] Call Trace:
[   20.621290][   T12]  <TASK>
[   20.621402][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.621577][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.621748][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.621918][   T12]  netif_close_many (net/core/dev.c:1804)
[   20.622090][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.622259][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.622430][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.622602][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   20.622773][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   20.622994][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   20.623197][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.623372][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.623570][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.623742][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.623935][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   20.624136][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   20.624311][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   20.624484][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   20.624658][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   20.624849][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   20.625021][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   20.625196][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.625365][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.625538][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.625711][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.625904][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.626077][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.626249][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.626421][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.626595][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.626764][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.626960][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.627136][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.627389][   T12]  kthread (kernel/kthread.c:436)
[   20.627529][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.627729][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.627918][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.628168][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.628371][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.628542][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.628716][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.639928][   T12] ------------[ cut here ]------------
| [   20.640064][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   20.640302][   T12] Modules linked in:
| [   20.640669][   T12] Tainted: [W]=WARN
[   20.640758][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.640922][   T12] Workqueue: netns cleanup_net
[   20.641048][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.641203][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.641627][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   20.641793][   T12] RAX: 00000000ffffffa6 RBX: ff11000004c871c0 RCX: 1ff4000000018ed5
[   20.641985][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004c8727c
[   20.642163][   T12] RBP: ff1100000dce9000 R08: 1fe2200000990e51 R09: ff11000001aed1d0
[   20.642340][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.642525][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.642705][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   20.642923][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.643073][   T12] CR2: 000056117ba87d5c CR3: 000000000e46f002 CR4: 0000000000771ef0
[   20.643273][   T12] PKRU: 55555554
[   20.643363][   T12] Call Trace:
[   20.643458][   T12]  <TASK>
[   20.643521][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.643673][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.643825][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.643952][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.644075][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   20.644227][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   20.644349][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   20.644476][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   20.644597][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   20.644718][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   20.644846][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.644966][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.645087][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.645207][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.645325][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.645444][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.645563][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.645684][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.645814][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.645936][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.646060][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.646184][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.646303][   T12]  kthread (kernel/kthread.c:436)
[   20.646392][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.646544][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.646664][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.646783][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.646940][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.647060][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.647184][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.649488][   T12] ------------[ cut here ]------------
| [   20.649609][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   20.649856][   T12] Modules linked in:
| [   20.650218][   T12] Tainted: [W]=WARN
[   20.650308][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.650458][   T12] Workqueue: netns cleanup_net
[   20.650582][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.650736][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.651170][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   20.651320][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b26a3c0 RCX: 1ff4000000018ed5
[   20.651501][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b26a47c
[   20.651677][   T12] RBP: ff1100000a3cc000 R08: 1fe220000164d491 R09: ff11000001aed1d0
[   20.651869][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.652045][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.652225][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   20.652462][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.652612][   T12] CR2: 000056117ba87d5c CR3: 000000000e46f002 CR4: 0000000000771ef0
[   20.652790][   T12] PKRU: 55555554
[   20.652890][   T12] Call Trace:
[   20.652981][   T12]  <TASK>
[   20.653042][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.653194][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.653341][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.653460][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.653578][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   20.653735][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   20.653868][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   20.653988][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   20.654108][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   20.654229][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   20.654349][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.654467][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.654590][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.654710][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.654840][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.654964][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.655084][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.655209][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.655332][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.655457][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.655582][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.655707][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.655829][   T12]  kthread (kernel/kthread.c:436)
[   20.655924][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.656071][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.656190][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.656310][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.656460][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.656580][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.656704][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.658888][   T12] ------------[ cut here ]------------
| [   20.659005][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   20.659237][   T12] Modules linked in:
| [   20.659595][   T12] Tainted: [W]=WARN
[   20.659683][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.659845][   T12] Workqueue: netns cleanup_net
[   20.659968][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.660121][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.660542][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   20.660691][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b26ae40 RCX: 1ff4000000018ed5
[   20.660875][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b26aefc
[   20.661050][   T12] RBP: ff1100000a4fc000 R08: 1fe220000164d5e1 R09: ff11000001aed1d0
[   20.661231][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.661407][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.661585][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   20.661791][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.661948][   T12] CR2: 000056117ba87d5c CR3: 000000000e46f002 CR4: 0000000000771ef0
[   20.662126][   T12] PKRU: 55555554
[   20.662215][   T12] Call Trace:
[   20.662303][   T12]  <TASK>
[   20.662365][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.662517][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.662667][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.662786][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.662911][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   20.663061][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   20.663181][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   20.663299][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   20.663422][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   20.663543][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   20.663664][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.663787][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.663917][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.664037][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.664155][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.664276][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.664395][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.664517][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.664645][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.664762][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.664893][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.665018][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.665141][   T12]  kthread (kernel/kthread.c:436)
[   20.665230][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.665383][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.665503][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.665626][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.665774][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.665903][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.666023][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.674605][  T262] ------------[ cut here ]------------
| [   20.674749][  T262] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/262
| [   20.674993][  T262] Modules linked in:
| [   20.675362][  T262] Tainted: [W]=WARN
[   20.675461][  T262] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.675625][  T262] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.675796][  T262] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.676272][  T262] RSP: 0018:ffa0000000ae7a80 EFLAGS: 00010286
[   20.676437][  T262] RAX: 00000000ffffffa6 RBX: ff1100000cf9f380 RCX: 1ff400000015cf16
[   20.676635][  T262] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf9f43c
[   20.676842][  T262] RBP: ff1100000feb1000 R08: 1fe22000019f3e89 R09: ff1100000d85ae80
[   20.677036][  T262] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.677231][  T262] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000feb1000
[   20.677430][  T262] FS:  00007f41ca2e8840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   20.677665][  T262] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.677840][  T262] CR2: 00007f41ca4f27d0 CR3: 000000000dd9f004 CR4: 0000000000771ef0
[   20.678040][  T262] PKRU: 55555554
[   20.678138][  T262] Call Trace:
[   20.678237][  T262]  <TASK>
[   20.678306][  T262]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.678438][  T262]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.678570][  T262]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.678671][  T262]  register_netdevice (net/core/dev.c:11488)
[   20.678810][  T262]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.678979][  T262]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.679112][  T262]  register_netdev (net/core/dev.c:11552)
[   20.679245][  T262]  loopback_net_init (drivers/net/loopback.c:218)
[   20.679379][  T262]  ops_init (net/core/net_namespace.c:137)
[   20.679480][  T262]  setup_net (net/core/net_namespace.c:446)
[   20.679579][  T262]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.679709][  T262]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.679850][  T262]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.679982][  T262]  copy_net_ns (net/core/net_namespace.c:579)
[   20.680116][  T262]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.680250][  T262]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.680382][  T262]  ksys_unshare (kernel/fork.c:3243)
[   20.680514][  T262]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.680646][  T262]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.680778][  T262]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.680925][  T262]  ? __ia32_sys_open (fs/open.c:1374)
[   20.681061][  T262]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.681190][  T262]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.681321][  T262]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.681451][  T262]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.681582][  T262]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.681715][  T262]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.681888][  T262] RIP: 0033:0x7f41ca5aabcb
[   20.682029][  T262] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.682497][  T262] RSP: 002b:00007fff3df1a3b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.682696][  T262] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f41ca5aabcb
[   20.682903][  T262] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.683100][  T262] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.683295][  T262] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff3df1c5e0
[   20.683492][  T262] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff3df1e875
| [   20.691612][  T262] ------------[ cut here ]------------
| [   20.691751][  T262] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/262
| [   20.691991][  T262] Modules linked in:
| [   20.692356][  T262] Tainted: [W]=WARN
[   20.692455][  T262] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.692617][  T262] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.692786][  T262] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.693257][  T262] RSP: 0018:ffa0000000ae7918 EFLAGS: 00010286
[   20.693422][  T262] RAX: 00000000ffffffa6 RBX: ff1100000beb3c40 RCX: 1ff400000015cee9
[   20.693616][  T262] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000beb3cfc
[   20.693812][  T262] RBP: ff1100000a3d1000 R08: 1fe22000017d67a1 R09: ff1100000d85ae80
[   20.694015][  T262] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.694207][  T262] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a3d1000
[   20.694406][  T262] FS:  00007f41ca2e8840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   20.694633][  T262] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.694795][  T262] CR2: 00007f41ca4f27d0 CR3: 000000000dd9f004 CR4: 0000000000771ef0
[   20.695003][  T262] PKRU: 55555554
[   20.695101][  T262] Call Trace:
[   20.695198][  T262]  <TASK>
[   20.695266][  T262]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.695396][  T262]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.695528][  T262]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.695628][  T262]  register_netdevice (net/core/dev.c:11488)
[   20.695759][  T262]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.695935][  T262]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.696068][  T262]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   20.696200][  T262]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   20.696329][  T262]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   20.696462][  T262]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   20.696593][  T262]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   20.696724][  T262]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   20.696867][  T262]  ops_init (net/core/net_namespace.c:137)
[   20.696967][  T262]  setup_net (net/core/net_namespace.c:446)
[   20.697066][  T262]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.697197][  T262]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.697328][  T262]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.697461][  T262]  copy_net_ns (net/core/net_namespace.c:579)
[   20.697592][  T262]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.697724][  T262]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.697864][  T262]  ksys_unshare (kernel/fork.c:3243)
[   20.697995][  T262]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.698125][  T262]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.698255][  T262]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.698387][  T262]  ? __ia32_sys_open (fs/open.c:1374)
[   20.698520][  T262]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.698649][  T262]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.698778][  T262]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.698915][  T262]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.699046][  T262]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.699177][  T262]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.699338][  T262] RIP: 0033:0x7f41ca5aabcb
[   20.699474][  T262] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.699946][  T262] RSP: 002b:00007fff3df1a3b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.700142][  T262] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f41ca5aabcb
[   20.700335][  T262] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.700528][  T262] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.700722][  T262] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff3df1c5e0
[   20.700927][  T262] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff3df1e875
| [   20.704726][  T262] ------------[ cut here ]------------
| [   20.704990][  T262] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/262
| [   20.705221][  T262] Modules linked in:
| [   20.705589][  T262] Tainted: [W]=WARN
[   20.705689][  T262] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.705867][  T262] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.706040][  T262] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.706510][  T262] RSP: 0018:ffa0000000ae78f8 EFLAGS: 00010286
[   20.706676][  T262] RAX: 00000000ffffffa6 RBX: ff1100000beb2c80 RCX: 1ff400000015cee5
[   20.706882][  T262] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000beb2d3c
[   20.707078][  T262] RBP: ff11000008649000 R08: 1fe22000017d65a9 R09: ff1100000d85ae80
[   20.707275][  T262] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.707485][  T262] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008649000
[   20.707684][  T262] FS:  00007f41ca2e8840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   20.707923][  T262] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.708088][  T262] CR2: 00007f41ca4f27d0 CR3: 000000000dd9f004 CR4: 0000000000771ef0
[   20.708286][  T262] PKRU: 55555554
[   20.708383][  T262] Call Trace:
[   20.708481][  T262]  <TASK>
[   20.708550][  T262]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.708684][  T262]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.708820][  T262]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.708927][  T262]  register_netdevice (net/core/dev.c:11488)
[   20.709060][  T262]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.709224][  T262]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.709358][  T262]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   20.709493][  T262]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   20.709625][  T262]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   20.709761][  T262]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   20.709906][  T262]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   20.710041][  T262]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   20.710174][  T262]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   20.710309][  T262]  vti_init_net (net/ipv4/ip_vti.c:517)
[   20.710441][  T262]  ops_init (net/core/net_namespace.c:137)
[   20.710543][  T262]  setup_net (net/core/net_namespace.c:446)
[   20.710644][  T262]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.710776][  T262]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.710918][  T262]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.711054][  T262]  copy_net_ns (net/core/net_namespace.c:579)
[   20.711189][  T262]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.711323][  T262]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.711458][  T262]  ksys_unshare (kernel/fork.c:3243)
[   20.711590][  T262]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.711722][  T262]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.711866][  T262]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.712089][  T262]  ? __ia32_sys_open (fs/open.c:1374)
[   20.712223][  T262]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.712354][  T262]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.712487][  T262]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.712708][  T262]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.712850][  T262]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.712983][  T262]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.713145][  T262] RIP: 0033:0x7f41ca5aabcb
[   20.713374][  T262] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.713850][  T262] RSP: 002b:00007fff3df1a3b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.714050][  T262] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f41ca5aabcb
[   20.714246][  T262] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.714530][  T262] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.714727][  T262] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff3df1c5e0
[   20.714936][  T262] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff3df1e875
| [   20.725548][  T262] ------------[ cut here ]------------
| [   20.725697][  T262] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/262
| [   20.725943][  T262] Modules linked in:
| [   20.726311][  T262] Tainted: [W]=WARN
[   20.726410][  T262] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.726573][  T262] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.726746][  T262] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.727223][  T262] RSP: 0018:ffa0000000ae7a78 EFLAGS: 00010286
[   20.727390][  T262] RAX: 00000000ffffffa6 RBX: ff1100000c373700 RCX: 1ff400000015cf15
[   20.727585][  T262] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c3737bc
[   20.727780][  T262] RBP: ff110000089a1000 R08: 1fe220000186e6f9 R09: ff1100000d85ae80
[   20.727984][  T262] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   20.728182][  T262] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000089a1000
[   20.728378][  T262] FS:  00007f41ca2e8840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   20.728606][  T262] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.728771][  T262] CR2: 00007f5b123ae000 CR3: 000000000dd9f001 CR4: 0000000000771ef0
[   20.728978][  T262] PKRU: 55555554
[   20.729074][  T262] Call Trace:
[   20.729171][  T262]  <TASK>
[   20.729239][  T262]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.729374][  T262]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.729504][  T262]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.729604][  T262]  register_netdevice (net/core/dev.c:11488)
[   20.729735][  T262]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.729909][  T262]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.730041][  T262]  register_netdev (net/core/dev.c:11552)
[   20.730171][  T262]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   20.730302][  T262]  ops_init (net/core/net_namespace.c:137)
[   20.730402][  T262]  setup_net (net/core/net_namespace.c:446)
[   20.730501][  T262]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.730629][  T262]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.730762][  T262]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.730904][  T262]  copy_net_ns (net/core/net_namespace.c:579)
[   20.731035][  T262]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.731167][  T262]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.731297][  T262]  ksys_unshare (kernel/fork.c:3243)
[   20.731426][  T262]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.731556][  T262]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.731689][  T262]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.731827][  T262]  ? __ia32_sys_open (fs/open.c:1374)
[   20.731964][  T262]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.732095][  T262]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.732227][  T262]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.732357][  T262]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.732488][  T262]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.732618][  T262]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.732782][  T262] RIP: 0033:0x7f41ca5aabcb
[   20.732930][  T262] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.733398][  T262] RSP: 002b:00007fff3df1a3b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.733595][  T262] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f41ca5aabcb
[   20.733790][  T262] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.733993][  T262] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.734185][  T262] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff3df1c5e0
[   20.734379][  T262] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff3df1e875
| [   20.738478][  T262] ------------[ cut here ]------------
| [   20.738616][  T262] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/262
| [   20.738859][  T262] Modules linked in:
| [   20.739224][  T262] Tainted: [W]=WARN
[   20.739323][  T262] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.739488][  T262] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.739661][  T262] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.740135][  T262] RSP: 0018:ffa0000000ae7a68 EFLAGS: 00010286
[   20.740301][  T262] RAX: 00000000ffffffa6 RBX: ff1100000c83cc80 RCX: 1ff400000015cf13
[   20.740500][  T262] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c83cd3c
[   20.740695][  T262] RBP: ff11000005231000 R08: 1fe22000019079a9 R09: ff1100000d85ae80
[   20.740899][  T262] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   20.741094][  T262] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005231000
[   20.741293][  T262] FS:  00007f41ca2e8840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   20.741528][  T262] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.741694][  T262] CR2: 00007f5b123ae000 CR3: 000000000dd9f001 CR4: 0000000000771ef0
[   20.741901][  T262] PKRU: 55555554
[   20.741999][  T262] Call Trace:
[   20.742097][  T262]  <TASK>
[   20.742165][  T262]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.742297][  T262]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.742427][  T262]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.742529][  T262]  register_netdevice (net/core/dev.c:11488)
[   20.742663][  T262]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.742843][  T262]  register_netdev (net/core/dev.c:11552)
[   20.742974][  T262]  sit_init_net (net/ipv6/sit.c:1860)
[   20.743106][  T262]  ops_init (net/core/net_namespace.c:137)
[   20.743207][  T262]  setup_net (net/core/net_namespace.c:446)
[   20.743306][  T262]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.743438][  T262]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.743569][  T262]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.743704][  T262]  copy_net_ns (net/core/net_namespace.c:579)
[   20.743845][  T262]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.743979][  T262]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.744112][  T262]  ksys_unshare (kernel/fork.c:3243)
[   20.744242][  T262]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.744373][  T262]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.744504][  T262]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.744636][  T262]  ? __ia32_sys_open (fs/open.c:1374)
[   20.744768][  T262]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.744912][  T262]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.745041][  T262]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.745173][  T262]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.745303][  T262]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.745434][  T262]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.745596][  T262] RIP: 0033:0x7f41ca5aabcb
[   20.745735][  T262] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.746211][  T262] RSP: 002b:00007fff3df1a3b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.746411][  T262] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f41ca5aabcb
[   20.746607][  T262] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.746808][  T262] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.747008][  T262] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff3df1c5e0
[   20.747201][  T262] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff3df1e875
| [   20.751867][  T262] ------------[ cut here ]------------
| [   20.752005][  T262] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/262
| [   20.752263][  T262] Modules linked in:
| [   20.752680][  T262] Tainted: [W]=WARN
[   20.752782][  T262] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.752956][  T262] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.753129][  T262] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.753815][  T262] RSP: 0018:ffa0000000ae7a78 EFLAGS: 00010286
[   20.754080][  T262] RAX: 00000000ffffffa6 RBX: ff110000061cfc40 RCX: 1ff400000015cf15
[   20.754364][  T262] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000061cfcfc
[   20.754622][  T262] RBP: ff11000005f5c000 R08: 1fe2200000c39fa1 R09: ff1100000d85ae80
[   20.754827][  T262] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   20.755035][  T262] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005f5c000
[   20.755235][  T262] FS:  00007f41ca2e8840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   20.755470][  T262] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.755636][  T262] CR2: 00007f5b123ae000 CR3: 000000000dd9f001 CR4: 0000000000771ef0
[   20.755848][  T262] PKRU: 55555554
[   20.755951][  T262] Call Trace:
[   20.756050][  T262]  <TASK>
[   20.756119][  T262]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.756252][  T262]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.756384][  T262]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.756485][  T262]  register_netdevice (net/core/dev.c:11488)
[   20.756619][  T262]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.756785][  T262]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.756931][  T262]  register_netdev (net/core/dev.c:11552)
[   20.757063][  T262]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   20.757195][  T262]  ops_init (net/core/net_namespace.c:137)
[   20.757297][  T262]  setup_net (net/core/net_namespace.c:446)
[   20.757397][  T262]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.757530][  T262]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.757663][  T262]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.757796][  T262]  copy_net_ns (net/core/net_namespace.c:579)
[   20.757941][  T262]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.758077][  T262]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.758211][  T262]  ksys_unshare (kernel/fork.c:3243)
[   20.758342][  T262]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.758474][  T262]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.758608][  T262]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.758741][  T262]  ? __ia32_sys_open (fs/open.c:1374)
[   20.758884][  T262]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.759015][  T262]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.759147][  T262]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.759277][  T262]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.759408][  T262]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.759540][  T262]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.759704][  T262] RIP: 0033:0x7f41ca5aabcb
[   20.759850][  T262] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.760319][  T262] RSP: 002b:00007fff3df1a3b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   20.760516][  T262] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f41ca5aabcb
[   20.760714][  T262] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.760916][  T262] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.761111][  T262] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff3df1c5e0
[   20.761308][  T262] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff3df1e875
| [   20.776089][   T12] ------------[ cut here ]------------
| [   20.776227][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   20.776461][   T12] Modules linked in:
| [   20.776842][   T12] Tainted: [W]=WARN
[   20.776932][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.777080][   T12] Workqueue: netns cleanup_net
[   20.777205][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.777359][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.777784][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.777948][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a2b6e40 RCX: 1ff4000000018eed
[   20.778126][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2b6efc
[   20.778302][   T12] RBP: ff1100000a579000 R08: 1fe2200001456de1 R09: ff11000001aed1d0
[   20.778480][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.778661][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.778855][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   20.779062][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.779210][   T12] CR2: 000056117ba87d5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   20.779389][   T12] PKRU: 55555554
[   20.779477][   T12] Call Trace:
[   20.779570][   T12]  <TASK>
[   20.779633][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.779785][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.779944][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.780068][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.780189][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.780309][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.780430][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.780549][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.780668][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.780790][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.780926][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.781045][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.781164][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.781283][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.781402][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.781522][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.781643][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.781762][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.781900][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.782023][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.782142][   T12]  kthread (kernel/kthread.c:436)
[   20.782231][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.782384][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.782503][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.782623][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.782776][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.782904][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.783022][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.785201][   T12] ------------[ cut here ]------------
| [   20.785318][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   20.785549][   T12] Modules linked in:
| [   20.785914][   T12] Tainted: [W]=WARN
[   20.786004][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.786152][   T12] Workqueue: netns cleanup_net
[   20.786275][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.786434][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.786867][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.787017][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a2b7540 RCX: 1ff4000000018eed
[   20.787191][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2b75fc
[   20.787370][   T12] RBP: ff11000002911000 R08: 1fe2200001456ec1 R09: ff11000001aed1d0
[   20.787547][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.787724][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.787908][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   20.788114][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.788261][   T12] CR2: 000056117ba87d5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   20.788444][   T12] PKRU: 55555554
[   20.788534][   T12] Call Trace:
[   20.788622][   T12]  <TASK>
[   20.788684][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.788842][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.788989][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.789107][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.789226][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.789344][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.789465][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.789586][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.789704][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.789826][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.789953][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.790072][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.790189][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.790310][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.790428][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.790548][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.790675][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.790792][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.790927][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.791050][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.791166][   T12]  kthread (kernel/kthread.c:436)
[   20.791257][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.791404][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.791522][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.791642][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.791789][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.791917][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.792035][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.794211][   T12] ------------[ cut here ]------------
| [   20.794328][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   20.794560][   T12] Modules linked in:
| [   20.794926][   T12] Tainted: [W]=WARN
[   20.795016][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.795164][   T12] Workqueue: netns cleanup_net
[   20.795287][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.795440][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.795867][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.796016][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a2b7c40 RCX: 1ff4000000018eed
[   20.796193][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2b7cfc
[   20.796366][   T12] RBP: ff1100000a4ec000 R08: 1fe2200001456fa1 R09: ff11000001aed1d0
[   20.796541][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.796713][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.796904][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   20.797109][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.797256][   T12] CR2: 000056117ba87d5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   20.797435][   T12] PKRU: 55555554
[   20.797521][   T12] Call Trace:
[   20.797609][   T12]  <TASK>
[   20.797670][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.797823][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.797972][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.798087][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.798205][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.798322][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.798440][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.798562][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.798681][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.798797][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.798924][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.799041][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.799157][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.799282][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.799405][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.799599][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.799720][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.799848][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.799974][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.800171][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.800290][   T12]  kthread (kernel/kthread.c:436)
[   20.800378][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.800526][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.800715][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.800841][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.800988][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.801176][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.801294][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.803712][   T12] ------------[ cut here ]------------
| [   20.803840][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   20.804140][   T12] Modules linked in:
| [   20.804566][   T12] Tainted: [W]=WARN
[   20.804655][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.804801][   T12] Workqueue: netns cleanup_net
[   20.804933][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.805160][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.805600][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.805824][   T12] RAX: 00000000ffffffa6 RBX: ff1100000dbf5a80 RCX: 1ff4000000018eed
[   20.806001][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbf5b3c
[   20.806249][   T12] RBP: ff11000008d41000 R08: 1fe2200001b7eb69 R09: ff11000001aed1d0
[   20.806423][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.806597][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.806853][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   20.807058][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.807205][   T12] CR2: 000056117ba87d5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   20.807454][   T12] PKRU: 55555554
[   20.807541][   T12] Call Trace:
[   20.807629][   T12]  <TASK>
[   20.807690][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.807916][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.808063][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.808180][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.808298][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.808485][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.808638][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.808756][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.808885][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.809074][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.809196][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.809315][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.809431][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.809618][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.809735][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.809867][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.809988][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.810178][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.810298][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.810419][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.810536][   T12]  kthread (kernel/kthread.c:436)
[   20.810696][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.810849][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.810967][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.811087][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.811305][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.811421][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.811539][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.823549][   T12] ------------[ cut here ]------------
| [   20.823683][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   20.824224][   T12] Modules linked in:
| [   20.824588][   T12] Tainted: [W]=WARN
[   20.824676][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.824828][   T12] Workqueue: netns cleanup_net
[   20.824958][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.825112][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.825531][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   20.825679][   T12] RAX: 00000000ffffffa6 RBX: ff1100000beb2580 RCX: 1ff4000000018eed
[   20.825864][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000beb263c
[   20.826045][   T12] RBP: ff11000008d39000 R08: 1fe22000017d64c9 R09: ff11000001aed1d0
[   20.826220][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.826394][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.826570][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   20.826780][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.826936][   T12] CR2: 00007f8db6e827d0 CR3: 0000000012d96006 CR4: 0000000000771ef0
[   20.827116][   T12] PKRU: 55555554
[   20.827204][   T12] Call Trace:
[   20.827291][   T12]  <TASK>
[   20.827352][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.827503][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.827649][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   20.827770][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   20.827899][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.828016][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   20.828134][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   20.828253][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   20.828374][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.828493][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.828614][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.828733][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.828863][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.828983][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.829105][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.829224][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.829346][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.829465][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.829590][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.829712][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.829839][   T12]  kthread (kernel/kthread.c:436)
[   20.829930][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.830075][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.830192][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.830309][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.830458][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.830577][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.830694][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.840231][  T263] ------------[ cut here ]------------
| [   20.840375][  T263] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/263
| [   20.840603][  T263] Modules linked in:
| [   20.840978][  T263] Tainted: [W]=WARN
[   20.841078][  T263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.841245][  T263] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.841417][  T263] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.841903][  T263] RSP: 0018:ffa0000000b37a80 EFLAGS: 00010286
[   20.842072][  T263] RAX: 00000000ffffffa6 RBX: ff1100000beb38c0 RCX: 1ff4000000166f16
[   20.842268][  T263] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000beb397c
[   20.842465][  T263] RBP: ff11000007911000 R08: 1fe22000017d6731 R09: ff1100000d858b80
[   20.842662][  T263] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.842869][  T263] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007911000
[   20.843069][  T263] FS:  00007f8db6c78840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   20.843302][  T263] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.843467][  T263] CR2: 000056117ba87d5c CR3: 0000000012d96003 CR4: 0000000000771ef0
[   20.843665][  T263] PKRU: 55555554
[   20.843764][  T263] Call Trace:
[   20.843873][  T263]  <TASK>
[   20.843942][  T263]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.844075][  T263]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.844207][  T263]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.844308][  T263]  register_netdevice (net/core/dev.c:11488)
[   20.844441][  T263]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.844605][  T263]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.844740][  T263]  register_netdev (net/core/dev.c:11552)
[   20.844882][  T263]  loopback_net_init (drivers/net/loopback.c:218)
[   20.845016][  T263]  ops_init (net/core/net_namespace.c:137)
[   20.845118][  T263]  setup_net (net/core/net_namespace.c:446)
[   20.845219][  T263]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.845351][  T263]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.845483][  T263]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.845618][  T263]  copy_net_ns (net/core/net_namespace.c:579)
[   20.845750][  T263]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.845896][  T263]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.846027][  T263]  ksys_unshare (kernel/fork.c:3243)
[   20.846159][  T263]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.846292][  T263]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.846425][  T263]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.846560][  T263]  ? __ia32_sys_open (fs/open.c:1374)
[   20.846695][  T263]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.846837][  T263]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.846971][  T263]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.847104][  T263]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.847235][  T263]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.847367][  T263]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.847530][  T263] RIP: 0033:0x7f8db6f3abcb
[   20.847667][  T263] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.848145][  T263] RSP: 002b:00007ffce7587bc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   20.848343][  T263] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f8db6f3abcb
[   20.848539][  T263] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.848734][  T263] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.848943][  T263] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffce7589df0
[   20.849139][  T263] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffce758b875
| [   20.853346][  T263] ------------[ cut here ]------------
| [   20.853484][  T263] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/263
| [   20.853710][  T263] Modules linked in:
| [   20.854086][  T263] Tainted: [W]=WARN
[   20.854184][  T263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.854347][  T263] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.854516][  T263] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.854993][  T263] RSP: 0018:ffa0000000b37918 EFLAGS: 00010286
[   20.855160][  T263] RAX: 00000000ffffffa6 RBX: ff11000004c86040 RCX: 1ff4000000166ee9
[   20.855353][  T263] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004c860fc
[   20.855546][  T263] RBP: ff11000008d49000 R08: 1fe2200000990c21 R09: ff1100000d858b80
[   20.855743][  T263] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.855948][  T263] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008d49000
[   20.856145][  T263] FS:  00007f8db6c78840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   20.856373][  T263] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.856537][  T263] CR2: 000056117ba87d5c CR3: 0000000012d96003 CR4: 0000000000771ef0
[   20.856732][  T263] PKRU: 55555554
[   20.856839][  T263] Call Trace:
[   20.856938][  T263]  <TASK>
[   20.857007][  T263]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.857141][  T263]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.857273][  T263]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.857376][  T263]  register_netdevice (net/core/dev.c:11488)
[   20.857508][  T263]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.857672][  T263]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.857810][  T263]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   20.857944][  T263]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   20.858074][  T263]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   20.858205][  T263]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   20.858338][  T263]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   20.858469][  T263]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   20.858601][  T263]  ops_init (net/core/net_namespace.c:137)
[   20.858702][  T263]  setup_net (net/core/net_namespace.c:446)
[   20.858802][  T263]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.858940][  T263]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.859072][  T263]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.859206][  T263]  copy_net_ns (net/core/net_namespace.c:579)
[   20.859338][  T263]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.859471][  T263]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.859602][  T263]  ksys_unshare (kernel/fork.c:3243)
[   20.859733][  T263]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.859873][  T263]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.860004][  T263]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.860157][  T263]  ? __ia32_sys_open (fs/open.c:1374)
[   20.860289][  T263]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.860420][  T263]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.860550][  T263]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.860681][  T263]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.860812][  T263]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.860947][  T263]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.861108][  T263] RIP: 0033:0x7f8db6f3abcb
[   20.861245][  T263] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.861704][  T263] RSP: 002b:00007ffce7587bc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   20.861910][  T263] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f8db6f3abcb
[   20.862107][  T263] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.862301][  T263] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.862495][  T263] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffce7589df0
[   20.862689][  T263] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffce758b875
| [   20.864540][   T12] ------------[ cut here ]------------
| [   20.864668][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   20.864950][   T12] Modules linked in:
| [   20.865318][   T12] Tainted: [W]=WARN
[   20.865409][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.865557][   T12] Workqueue: netns cleanup_net
[   20.865680][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.865849][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.866297][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   20.866448][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b26b1c0 RCX: 1ff4000000018ed5
[   20.866625][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b26b27c
[   20.866811][   T12] RBP: ff11000008309000 R08: 1fe220000164d651 R09: ff11000001aed1d0
[   20.866991][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   20.867169][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   20.867348][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   20.867556][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.867710][   T12] CR2: 00007f8db6e827d0 CR3: 0000000012d96006 CR4: 0000000000771ef0
[   20.867901][   T12] PKRU: 55555554
[   20.867991][   T12] Call Trace:
[   20.868080][   T12]  <TASK>
[   20.868143][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   20.868297][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   20.868450][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   20.868572][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   20.868694][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   20.868815][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   20.868941][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   20.869062][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   20.869185][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   20.869308][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.869431][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   20.869553][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   20.869672][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   20.869794][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   20.869924][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   20.870045][   T12]  process_one_work (kernel/workqueue.c:3314)
[   20.870169][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   20.870289][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   20.870412][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   20.870537][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   20.870655][   T12]  kthread (kernel/kthread.c:436)
[   20.870745][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.870903][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.871022][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.871145][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   20.871292][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.871412][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   20.871532][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.888537][  T263] ------------[ cut here ]------------
| [   20.888681][  T263] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/263
| [   20.888927][  T263] Modules linked in:
| [   20.889297][  T263] Tainted: [W]=WARN
[   20.889397][  T263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.889565][  T263] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.889740][  T263] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.890221][  T263] RSP: 0018:ffa0000000b378f8 EFLAGS: 00010286
[   20.890391][  T263] RAX: 00000000ffffffa6 RBX: ff110000118d18c0 RCX: 1ff4000000166ee5
[   20.890590][  T263] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000118d197c
[   20.890787][  T263] RBP: ff110000082f1000 R08: 1fe220000231a331 R09: ff1100000d858b80
[   20.890994][  T263] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.891192][  T263] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000082f1000
[   20.891393][  T263] FS:  00007f8db6c78840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   20.891628][  T263] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.891795][  T263] CR2: 000056117ba87d5c CR3: 0000000012d96003 CR4: 0000000000771ef0
[   20.892008][  T263] PKRU: 55555554
[   20.892110][  T263] Call Trace:
[   20.892210][  T263]  <TASK>
[   20.892279][  T263]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.892412][  T263]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.892546][  T263]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.892648][  T263]  register_netdevice (net/core/dev.c:11488)
[   20.892783][  T263]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.892959][  T263]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   20.893093][  T263]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   20.893231][  T263]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   20.893365][  T263]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   20.893500][  T263]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   20.893634][  T263]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   20.893769][  T263]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   20.893910][  T263]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   20.894045][  T263]  vti_init_net (net/ipv4/ip_vti.c:517)
[   20.894177][  T263]  ops_init (net/core/net_namespace.c:137)
[   20.894280][  T263]  setup_net (net/core/net_namespace.c:446)
[   20.894384][  T263]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.894515][  T263]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.894647][  T263]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.894782][  T263]  copy_net_ns (net/core/net_namespace.c:579)
[   20.894927][  T263]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.895062][  T263]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.895199][  T263]  ksys_unshare (kernel/fork.c:3243)
[   20.895332][  T263]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.895466][  T263]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.895600][  T263]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.895733][  T263]  ? __ia32_sys_open (fs/open.c:1374)
[   20.895879][  T263]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.896012][  T263]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.896146][  T263]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.896281][  T263]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.896413][  T263]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.896546][  T263]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.896709][  T263] RIP: 0033:0x7f8db6f3abcb
[   20.896857][  T263] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.897332][  T263] RSP: 002b:00007ffce7587bc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   20.897532][  T263] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f8db6f3abcb
[   20.897730][  T263] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.897938][  T263] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.898137][  T263] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffce7589df0
[   20.898334][  T263] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffce758b875
| [   20.902430][  T263] ------------[ cut here ]------------
| [   20.902567][  T263] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/263
| [   20.902795][  T263] Modules linked in:
| [   20.903176][  T263] Tainted: [W]=WARN
[   20.903275][  T263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.903440][  T263] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.903610][  T263] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.904085][  T263] RSP: 0018:ffa0000000b37a78 EFLAGS: 00010286
[   20.904251][  T263] RAX: 00000000ffffffa6 RBX: ff110000118d0ac0 RCX: 1ff4000000166f15
[   20.904444][  T263] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000118d0b7c
[   20.904637][  T263] RBP: ff1100000df9c000 R08: 1fe220000231a171 R09: ff1100000d858b80
[   20.904843][  T263] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.905040][  T263] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000df9c000
[   20.905238][  T263] FS:  00007f8db6c78840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   20.905466][  T263] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.905630][  T263] CR2: 000056117ba87d5c CR3: 0000000012d96003 CR4: 0000000000771ef0
[   20.905839][  T263] PKRU: 55555554
[   20.905938][  T263] Call Trace:
[   20.906036][  T263]  <TASK>
[   20.906103][  T263]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.906235][  T263]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.906366][  T263]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.906466][  T263]  register_netdevice (net/core/dev.c:11488)
[   20.906598][  T263]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.906761][  T263]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.906905][  T263]  register_netdev (net/core/dev.c:11552)
[   20.907038][  T263]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   20.907171][  T263]  ops_init (net/core/net_namespace.c:137)
[   20.907272][  T263]  setup_net (net/core/net_namespace.c:446)
[   20.907373][  T263]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.907503][  T263]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.907634][  T263]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.907769][  T263]  copy_net_ns (net/core/net_namespace.c:579)
[   20.907913][  T263]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.908047][  T263]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.908179][  T263]  ksys_unshare (kernel/fork.c:3243)
[   20.908313][  T263]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.908443][  T263]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.908576][  T263]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.908708][  T263]  ? __ia32_sys_open (fs/open.c:1374)
[   20.908850][  T263]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.908983][  T263]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.909117][  T263]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.909248][  T263]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.909381][  T263]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.909512][  T263]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.909677][  T263] RIP: 0033:0x7f8db6f3abcb
[   20.909816][  T263] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.910289][  T263] RSP: 002b:00007ffce7587bc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   20.910487][  T263] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f8db6f3abcb
[   20.910681][  T263] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.910886][  T263] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.911080][  T263] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffce7589df0
[   20.911277][  T263] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffce758b875
| [   20.915346][  T263] ------------[ cut here ]------------
| [   20.915482][  T263] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/263
| [   20.915711][  T263] Modules linked in:
| [   20.916086][  T263] Tainted: [W]=WARN
[   20.916187][  T263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.916351][  T263] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.916521][  T263] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.917089][  T263] RSP: 0018:ffa0000000b37a68 EFLAGS: 00010286
[   20.917254][  T263] RAX: 00000000ffffffa6 RBX: ff110000098d8c80 RCX: 1ff4000000166f13
[   20.917447][  T263] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098d8d3c
[   20.917645][  T263] RBP: ff11000012991000 R08: 1fe220000131b1a9 R09: ff1100000d858b80
[   20.917850][  T263] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.918047][  T263] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012991000
[   20.918246][  T263] FS:  00007f8db6c78840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   20.918481][  T263] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.918646][  T263] CR2: 000056117ba87d5c CR3: 0000000012d96003 CR4: 0000000000771ef0
[   20.918853][  T263] PKRU: 55555554
[   20.918953][  T263] Call Trace:
[   20.919052][  T263]  <TASK>
[   20.919120][  T263]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.919252][  T263]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.919385][  T263]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.919488][  T263]  register_netdevice (net/core/dev.c:11488)
[   20.919622][  T263]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.919793][  T263]  register_netdev (net/core/dev.c:11552)
[   20.919938][  T263]  sit_init_net (net/ipv6/sit.c:1860)
[   20.920074][  T263]  ops_init (net/core/net_namespace.c:137)
[   20.920175][  T263]  setup_net (net/core/net_namespace.c:446)
[   20.920277][  T263]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.920409][  T263]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.920541][  T263]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.920674][  T263]  copy_net_ns (net/core/net_namespace.c:579)
[   20.920815][  T263]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.920956][  T263]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.921090][  T263]  ksys_unshare (kernel/fork.c:3243)
[   20.921224][  T263]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.921355][  T263]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.921487][  T263]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.921619][  T263]  ? __ia32_sys_open (fs/open.c:1374)
[   20.921753][  T263]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.921896][  T263]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.922027][  T263]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.922159][  T263]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.922290][  T263]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.922421][  T263]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.922587][  T263] RIP: 0033:0x7f8db6f3abcb
[   20.922725][  T263] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.923202][  T263] RSP: 002b:00007ffce7587bc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   20.923401][  T263] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f8db6f3abcb
[   20.923600][  T263] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.923793][  T263] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.924001][  T263] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffce7589df0
[   20.924196][  T263] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffce758b875
| [   20.930010][  T263] ------------[ cut here ]------------
| [   20.930149][  T263] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/263
| [   20.930373][  T263] Modules linked in:
| [   20.930738][  T263] Tainted: [W]=WARN
[   20.931355][  T263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.931522][  T263] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   20.931693][  T263] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   20.932225][  T263] RSP: 0018:ffa0000000b37a78 EFLAGS: 00010286
[   20.932393][  T263] RAX: 00000000ffffffa6 RBX: ff1100000dbf1380 RCX: 1ff4000000166f15
[   20.932588][  T263] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbf143c
[   20.932783][  T263] RBP: ff1100000528c000 R08: 1fe2200001b7e289 R09: ff1100000d858b80
[   20.933038][  T263] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   20.933235][  T263] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000528c000
[   20.933433][  T263] FS:  00007f8db6c78840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   20.933662][  T263] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.933887][  T263] CR2: 000056117ba87d5c CR3: 0000000012d96003 CR4: 0000000000771ef0
[   20.934089][  T263] PKRU: 55555554
[   20.934188][  T263] Call Trace:
[   20.934286][  T263]  <TASK>
[   20.934354][  T263]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   20.934484][  T263]  ? notifier_call_chain (kernel/notifier.c:85)
[   20.934614][  T263]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   20.934713][  T263]  register_netdevice (net/core/dev.c:11488)
[   20.934907][  T263]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   20.935073][  T263]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   20.935207][  T263]  register_netdev (net/core/dev.c:11552)
[   20.935339][  T263]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   20.935470][  T263]  ops_init (net/core/net_namespace.c:137)
[   20.935570][  T263]  setup_net (net/core/net_namespace.c:446)
[   20.935670][  T263]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   20.935800][  T263]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   20.935991][  T263]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   20.936128][  T263]  copy_net_ns (net/core/net_namespace.c:579)
[   20.936261][  T263]  create_new_namespaces (kernel/nsproxy.c:132)
[   20.936394][  T263]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   20.936528][  T263]  ksys_unshare (kernel/fork.c:3243)
[   20.936659][  T263]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.936792][  T263]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   20.936986][  T263]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   20.937122][  T263]  ? __ia32_sys_open (fs/open.c:1374)
[   20.937256][  T263]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   20.937386][  T263]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   20.937517][  T263]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.937646][  T263]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   20.937778][  T263]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.937966][  T263]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.938130][  T263] RIP: 0033:0x7f8db6f3abcb
[   20.938267][  T263] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.938730][  T263] RSP: 002b:00007ffce7587bc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   20.938988][  T263] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f8db6f3abcb
[   20.939185][  T263] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   20.939381][  T263] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   20.939575][  T263] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffce7589df0
[   20.939769][  T263] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffce758b875
| [   21.037272][  T266] ------------[ cut here ]------------
| [   21.037469][  T266] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/266
| [   21.037752][  T266] Modules linked in:
| [   21.038248][  T266] Tainted: [W]=WARN
[   21.038396][  T266] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.038613][  T266] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.038859][  T266] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.039385][  T266] RSP: 0018:ffa0000000bd6e30 EFLAGS: 00010286
[   21.039603][  T266] RAX: 00000000ffffffa6 RBX: ff1100000dbf0580 RCX: 1ff400000017ad8c
[   21.039869][  T266] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbf063c
[   21.040119][  T266] RBP: ff1100001294c000 R08: 1fe2200001b7e0c9 R09: ff1100000dda0b80
[   21.040367][  T266] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   21.040617][  T266] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000be6dc90
[   21.040889][  T266] FS:  00007f85ac64a840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   21.041174][  T266] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.041395][  T266] CR2: 000000000042ebe0 CR3: 0000000004f9c001 CR4: 0000000000771ef0
[   21.041647][  T266] PKRU: 55555554
[   21.041795][  T266] Call Trace:
[   21.041962][  T266]  <TASK>
[   21.042079][  T266]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.042262][  T266]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.042411][  T266]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   21.042630][  T266]  __dev_notify_flags (net/core/dev.c:9787)
[   21.042821][  T266]  ? netif_change_name (net/core/dev.c:1495)
[   21.043015][  T266]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   21.043197][  T266]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   21.043380][  T266]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   21.043564][  T266]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   21.043748][  T266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.043956][  T266]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   21.044143][  T266]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   21.044325][  T266]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   21.044508][  T266]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   21.044693][  T266]  veth_newlink (drivers/net/veth.c:1871)
[   21.044899][  T266]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   21.045080][  T266]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.045267][  T266]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.045449][  T266]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   21.045648][  T266]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   21.045848][  T266]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   21.046035][  T266]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   21.046220][  T266]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   21.046404][  T266]  ? rtnl_create_link (net/core/rtnetlink.c:3733)
[   21.046591][  T266]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   21.046776][  T266]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   21.046978][  T266]  ? __dev_get_by_name (net/core/dev.c:883)
[   21.047160][  T266]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   21.047347][  T266]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   21.047534][  T266]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   21.047717][  T266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.047919][  T266]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.048108][  T266]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.048288][  T266]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   21.048469][  T266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.048654][  T266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.048856][  T266]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.049040][  T266]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   21.049224][  T266]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.049408][  T266]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.049593][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.049777][  T266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.049979][  T266]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.050163][  T266]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   21.050345][  T266]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.050528][  T266]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.050714][  T266]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.050920][  T266]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.051108][  T266]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.051291][  T266]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.051474][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.051657][  T266]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   21.051861][  T266]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   21.052119][  T266]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   21.052306][  T266]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   21.052495][  T266]  ? copy_msghdr_from_user (net/socket.c:2635)
[   21.052676][  T266]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   21.052912][  T266]  ? move_addr_to_kernel (net/socket.c:258)
[   21.053102][  T266]  ___sys_sendmsg (net/socket.c:2752)
[   21.053285][  T266]  ? copy_msghdr_from_user (net/socket.c:2603)
[   21.053473][  T266]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.053693][  T266]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   21.053902][  T266]  __sys_sendmsg (net/socket.c:2784)
[   21.054087][  T266]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   21.054273][  T266]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   21.054455][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.054640][  T266]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.054827][  T266]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.055025][  T266]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.055210][  T266]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.055430][  T266] RIP: 0033:0x7f85ac88408e
[   21.055620][  T266] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.056165][  T266] RSP: 002b:00007ffcbd79cb90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.056417][  T266] RAX: ffffffffffffffda RBX: 00007ffcbd79d348 RCX: 00007f85ac88408e
[   21.056665][  T266] RDX: 0000000000000000 RSI: 00007ffcbd79cc40 RDI: 0000000000000005
[   21.056930][  T266] RBP: 00007ffcbd79cba0 R08: 0000000000000000 R09: 0000000000000000
[   21.057175][  T266] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c4
[   21.057423][  T266] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcbd79d300
| [   21.065214][  T266] ------------[ cut here ]------------
| [   21.065398][  T266] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/266
| [   21.065681][  T266] Modules linked in:
| [   21.066746][  T266] Tainted: [W]=WARN
[   21.066971][  T266] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.067245][  T266] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.067527][  T266] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.068120][  T266] RSP: 0018:ffa0000000bd71b0 EFLAGS: 00010286
[   21.068391][  T266] RAX: 00000000ffffffa6 RBX: ff1100000c42b540 RCX: 1ff400000017adfc
[   21.068690][  T266] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c42b5fc
[   21.069009][  T266] RBP: ff11000013659000 R08: 1fe22000018856c1 R09: ff1100000dda0b80
[   21.069310][  T266] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   21.069610][  T266] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa8c03b20
[   21.069933][  T266] FS:  00007f85ac64a840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   21.070274][  T266] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.070546][  T266] CR2: 000000000042ebe0 CR3: 0000000004f9c001 CR4: 0000000000771ef0
[   21.070871][  T266] PKRU: 55555554
[   21.071071][  T266] Call Trace:
[   21.071276][  T266]  <TASK>
[   21.071447][  T266]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.071689][  T266]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.071916][  T266]  __dev_notify_flags (net/core/dev.c:9787)
[   21.072155][  T266]  ? netif_change_name (net/core/dev.c:1495)
[   21.072393][  T266]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   21.072626][  T266]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   21.072886][  T266]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   21.073126][  T266]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   21.073368][  T266]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   21.073603][  T266]  ? __dev_get_by_name (net/core/dev.c:883)
[   21.073857][  T266]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   21.074102][  T266]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   21.074342][  T266]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   21.074581][  T266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.074822][  T266]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.075074][  T266]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.075315][  T266]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   21.075551][  T266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.075790][  T266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.076044][  T266]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.076280][  T266]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   21.076517][  T266]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.076752][  T266]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.077008][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.077253][  T266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.077489][  T266]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.077727][  T266]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   21.077975][  T266]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.078157][  T266]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.078343][  T266]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.078525][  T266]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.078713][  T266]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.078918][  T266]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.079102][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.079286][  T266]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   21.079472][  T266]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   21.079655][  T266]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   21.079861][  T266]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   21.080044][  T266]  ? copy_msghdr_from_user (net/socket.c:2635)
[   21.080231][  T266]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   21.080446][  T266]  ? move_addr_to_kernel (net/socket.c:258)
[   21.080632][  T266]  ___sys_sendmsg (net/socket.c:2752)
[   21.080822][  T266]  ? copy_msghdr_from_user (net/socket.c:2603)
[   21.081022][  T266]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.081242][  T266]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   21.081425][  T266]  __sys_sendmsg (net/socket.c:2784)
[   21.081611][  T266]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   21.081798][  T266]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   21.082000][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.082185][  T266]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.082366][  T266]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.082547][  T266]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.082728][  T266]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.082960][  T266] RIP: 0033:0x7f85ac88408e
[   21.083150][  T266] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.083669][  T266] RSP: 002b:00007ffcbd79cb90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.083938][  T266] RAX: ffffffffffffffda RBX: 00007ffcbd79d348 RCX: 00007f85ac88408e
[   21.084189][  T266] RDX: 0000000000000000 RSI: 00007ffcbd79cc40 RDI: 0000000000000005
[   21.084435][  T266] RBP: 00007ffcbd79cba0 R08: 0000000000000000 R09: 0000000000000000
[   21.084680][  T266] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c4
[   21.084945][  T266] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcbd79d300
| [   21.114430][  T267] ------------[ cut here ]------------
| [   21.114588][  T267] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/267
| [   21.114821][  T267] Modules linked in:
| [   21.115274][  T267] Tainted: [W]=WARN
[   21.115375][  T267] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.115542][  T267] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.115714][  T267] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.116187][  T267] RSP: 0018:ffa0000000be7020 EFLAGS: 00010286
[   21.116352][  T267] RAX: 00000000ffffffa6 RBX: ff11000009884e40 RCX: 1ff400000017cdca
[   21.116547][  T267] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009884efc
[   21.116742][  T267] RBP: ff11000013659000 R08: 1fe22000013109e1 R09: ff1100000a6f8b58
[   21.116941][  T267] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   21.117137][  T267] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   21.117332][  T267] FS:  00007f9541348840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   21.117560][  T267] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.117722][  T267] CR2: 00000000102c3988 CR3: 00000000121c0003 CR4: 0000000000771ef0
[   21.117932][  T267] PKRU: 55555554
[   21.118030][  T267] Call Trace:
[   21.118129][  T267]  <TASK>
[   21.118196][  T267]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.118327][  T267]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.118425][  T267]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   21.118556][  T267]  __dev_notify_flags (net/core/dev.c:9787)
[   21.118689][  T267]  ? netif_change_name (net/core/dev.c:1495)
[   21.118823][  T267]  ? __dev_change_flags (net/core/dev.c:9752)
[   21.118960][  T267]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   21.119090][  T267]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.119221][  T267]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   21.119354][  T267]  netif_change_flags (net/core/dev.c:9820)
[   21.119483][  T267]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   21.119614][  T267]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   21.119749][  T267]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   21.119945][  T267]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   21.120163][  T267]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.120293][  T267]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.120423][  T267]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.120552][  T267]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.120683][  T267]  ? __kernel_text_address (kernel/extable.c:79)
[   21.120817][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.121009][  T267]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.121139][  T267]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   21.121269][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.121399][  T267]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   21.121528][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.121657][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.121787][  T267]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   21.121994][  T267]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   21.122126][  T267]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   21.122255][  T267]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   21.122388][  T267]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   21.122521][  T267]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   21.122654][  T267]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   21.122785][  T267]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.122976][  T267]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.123107][  T267]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.123236][  T267]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   21.123365][  T267]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.123499][  T267]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.123628][  T267]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.123756][  T267]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.123945][  T267]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.124077][  T267]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.124208][  T267]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   21.124337][  T267]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.124467][  T267]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.124596][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.124727][  T267]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.124961][  T267]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.125092][  T267]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   21.125223][  T267]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.125352][  T267]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.125485][  T267]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.125615][  T267]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.125747][  T267]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.125958][  T267]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.126088][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.126224][  T267]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   21.126355][  T267]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   21.126486][  T267]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   21.126618][  T267]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   21.126748][  T267]  ? copy_msghdr_from_user (net/socket.c:2635)
[   21.126961][  T267]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   21.127122][  T267]  ? move_addr_to_kernel (net/socket.c:258)
[   21.127253][  T267]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.127383][  T267]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.127514][  T267]  ___sys_sendmsg (net/socket.c:2752)
[   21.127642][  T267]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   21.127802][  T267]  ? copy_msghdr_from_user (net/socket.c:2603)
[   21.128030][  T267]  __sys_sendmsg (net/socket.c:2784)
[   21.128159][  T267]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   21.128288][  T267]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   21.128452][  T267]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   21.128582][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.128712][  T267]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.128930][  T267]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.129060][  T267]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.129189][  T267]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.129349][  T267] RIP: 0033:0x7f954158208e
[   21.129487][  T267] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.130016][  T267] RSP: 002b:00007ffd1d0fc460 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.130211][  T267] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f954158208e
[   21.130404][  T267] RDX: 0000000000000000 RSI: 00007ffd1d0fc510 RDI: 0000000000000005
[   21.130597][  T267] RBP: 00007ffd1d0fc470 R08: 0000000000000000 R09: 0000000000000000
[   21.130790][  T267] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c4
[   21.131069][  T267] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd1d0fcbe0
| [   21.167264][  T268] ------------[ cut here ]------------
| [   21.167444][  T268] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/268
| [   21.167720][  T268] Modules linked in:
| [   21.168827][  T268] Tainted: [W]=WARN
[   21.168990][  T268] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.169212][  T268] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.169432][  T268] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.169965][  T268] RSP: 0018:ffa0000000bf7020 EFLAGS: 00010286
[   21.170179][  T268] RAX: 00000000ffffffa6 RBX: ff1100000c920200 RCX: 1ff400000017edca
[   21.170422][  T268] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c9202bc
[   21.170667][  T268] RBP: ff1100001294c000 R08: 1fe2200001924059 R09: ff1100000a6fae58
[   21.170929][  T268] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   21.171172][  T268] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   21.171416][  T268] FS:  00007f54b998e840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   21.171694][  T268] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.171928][  T268] CR2: 0000000029a72988 CR3: 0000000004c17003 CR4: 0000000000771ef0
[   21.172171][  T268] PKRU: 55555554
[   21.172316][  T268] Call Trace:
[   21.172461][  T268]  <TASK>
[   21.172579][  T268]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.172759][  T268]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.172933][  T268]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   21.173115][  T268]  __dev_notify_flags (net/core/dev.c:9787)
[   21.173296][  T268]  ? netif_change_name (net/core/dev.c:1495)
[   21.173474][  T268]  ? __dev_change_flags (net/core/dev.c:9752)
[   21.173655][  T268]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   21.173853][  T268]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.174036][  T268]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   21.174219][  T268]  netif_change_flags (net/core/dev.c:9820)
[   21.174402][  T268]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   21.174581][  T268]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   21.174764][  T268]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   21.174966][  T268]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   21.175177][  T268]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.175356][  T268]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.175536][  T268]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.175715][  T268]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.175915][  T268]  ? __kernel_text_address (kernel/extable.c:79)
[   21.176098][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.176280][  T268]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.176458][  T268]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   21.176639][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.176827][  T268]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   21.177020][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.177200][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.177379][  T268]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   21.177559][  T268]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   21.177739][  T268]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   21.177942][  T268]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   21.178126][  T268]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   21.178309][  T268]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   21.178492][  T268]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   21.178674][  T268]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.178871][  T268]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.179054][  T268]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.179233][  T268]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   21.179410][  T268]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.179593][  T268]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.179772][  T268]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.179969][  T268]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.180149][  T268]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.180328][  T268]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.180507][  T268]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   21.180686][  T268]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.180883][  T268]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.181064][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.181248][  T268]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.181425][  T268]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.181605][  T268]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   21.181782][  T268]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.181982][  T268]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.182166][  T268]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.182342][  T268]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.182526][  T268]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.182706][  T268]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.182906][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.183089][  T268]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   21.183268][  T268]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   21.183446][  T268]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   21.183626][  T268]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   21.183812][  T268]  ? copy_msghdr_from_user (net/socket.c:2635)
[   21.184006][  T268]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   21.184214][  T268]  ? move_addr_to_kernel (net/socket.c:258)
[   21.184394][  T268]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.184573][  T268]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.184754][  T268]  ___sys_sendmsg (net/socket.c:2752)
[   21.184950][  T268]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   21.185162][  T268]  ? copy_msghdr_from_user (net/socket.c:2603)
[   21.185355][  T268]  __sys_sendmsg (net/socket.c:2784)
[   21.185535][  T268]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   21.185710][  T268]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   21.185943][  T268]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   21.186123][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.186303][  T268]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.186482][  T268]  ? irq_exit_rcu (kernel/softirq.c:754)
[   21.186665][  T268]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.186897][  T268] RIP: 0033:0x7f54b9bc808e
[   21.187080][  T268] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.187592][  T268] RSP: 002b:00007ffe2fd8ad00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.187862][  T268] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f54b9bc808e
[   21.188104][  T268] RDX: 0000000000000000 RSI: 00007ffe2fd8adb0 RDI: 0000000000000005
[   21.188346][  T268] RBP: 00007ffe2fd8ad10 R08: 0000000000000000 R09: 0000000000000000
[   21.188587][  T268] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c4
[   21.188850][  T268] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe2fd8b480
| [   21.191270][   T71] ------------[ cut here ]------------
| [   21.191432][   T71] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/71
| [   21.191717][   T71] Modules linked in:
| [   21.192680][   T71] Tainted: [W]=WARN
[   21.192823][   T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.193037][   T71] Workqueue: events_unbound linkwatch_event
[   21.193237][   T71] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.193440][   T71] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.193923][   T71] RSP: 0018:ffa00000004c79e0 EFLAGS: 00010286
[   21.194126][   T71] RAX: 00000000ffffffa6 RBX: ff1100000c921a80 RCX: 1ff4000000098f02
[   21.194349][   T71] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c921b3c
[   21.194575][   T71] RBP: ff11000013659000 R08: 1fe2200001924369 R09: ff11000009222ea8
[   21.194800][   T71] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   21.195067][   T71] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   21.195297][   T71] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   21.195553][   T71] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.195753][   T71] CR2: 0000000029a72988 CR3: 000000003174d004 CR4: 0000000000771ef0
[   21.196002][   T71] PKRU: 55555554
[   21.196143][   T71] Call Trace:
[   21.196278][   T71]  <TASK>
[   21.196389][   T71]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.196558][   T71]  ? notifier_call_chain (kernel/notifier.c:85)
[   21.196726][   T71]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.196886][   T71]  netif_state_change (net/core/dev.c:1605)
[   21.197057][   T71]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   21.197255][   T71]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   21.197426][   T71]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   21.197595][   T71]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.197765][   T71]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   21.197957][   T71]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   21.198128][   T71]  process_one_work (kernel/workqueue.c:3314)
[   21.198302][   T71]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   21.198469][   T71]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.198643][   T71]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   21.198820][   T71]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   21.198999][   T71]  kthread (kernel/kthread.c:436)
[   21.199136][   T71]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.199330][   T71]  ? kthread_affine_node (kernel/kthread.c:378)
[   21.199497][   T71]  ret_from_fork (arch/x86/kernel/process.c:158)
[   21.199668][   T71]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   21.199887][   T71]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   21.200056][   T71]  ? kthread_affine_node (kernel/kthread.c:378)
[   21.200223][   T71]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   21.229648][  T269] ------------[ cut here ]------------
| [   21.229849][  T269] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/269
| [   21.230138][  T269] Modules linked in:
| [   21.230629][  T269] Tainted: [W]=WARN
[   21.230783][  T269] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.231027][  T269] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.231255][  T269] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.231777][  T269] RSP: 0018:ffa0000000c07050 EFLAGS: 00010286
[   21.232182][  T269] RAX: 00000000ffffffa6 RBX: ff11000004c878c0 RCX: 1ff4000000180dd0
[   21.232419][  T269] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004c8797c
[   21.232663][  T269] RBP: ff11000013659000 R08: 1fe2200000990f31 R09: ff1100000a6fd180
[   21.232923][  T269] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   21.233164][  T269] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   21.233406][  T269] FS:  00007f7022057840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   21.233684][  T269] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.233915][  T269] CR2: 0000000035f50988 CR3: 00000000135d2006 CR4: 0000000000771ef0
[   21.234157][  T269] PKRU: 55555554
[   21.234300][  T269] Call Trace:
[   21.234444][  T269]  <TASK>
[   21.234559][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.234737][  T269]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   21.234948][  T269]  notifier_call_chain (kernel/notifier.c:85)
[   21.235134][  T269]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   21.235315][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.235497][  T269]  ? netif_set_group (net/core/dev.c:9947)
[   21.235677][  T269]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   21.235908][  T269]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   21.236089][  T269]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   21.236270][  T269]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   21.236452][  T269]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   21.236663][  T269]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.236861][  T269]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.237041][  T269]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.237218][  T269]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.237397][  T269]  ? __kernel_text_address (kernel/extable.c:79)
[   21.237580][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.237762][  T269]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.237961][  T269]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   21.238142][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.238321][  T269]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   21.238498][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.238675][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.238878][  T269]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   21.239065][  T269]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   21.239241][  T269]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   21.239420][  T269]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   21.239603][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   21.239786][  T269]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   21.239984][  T269]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.240160][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.240339][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.240522][  T269]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   21.240699][  T269]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.240899][  T269]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.241077][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.241256][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.241436][  T269]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.241616][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.241798][  T269]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   21.241996][  T269]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.242174][  T269]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.242351][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.242530][  T269]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.242706][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.242904][  T269]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   21.243084][  T269]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.243265][  T269]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.243445][  T269]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.243622][  T269]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.243802][  T269]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.244001][  T269]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.244180][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.244360][  T269]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   21.244543][  T269]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   21.244722][  T269]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   21.244922][  T269]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   21.245103][  T269]  ? copy_msghdr_from_user (net/socket.c:2635)
[   21.245280][  T269]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   21.245490][  T269]  ? move_addr_to_kernel (net/socket.c:258)
[   21.245670][  T269]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.245872][  T269]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.246053][  T269]  ___sys_sendmsg (net/socket.c:2752)
[   21.246233][  T269]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   21.246444][  T269]  ? copy_msghdr_from_user (net/socket.c:2603)
[   21.246635][  T269]  __sys_sendmsg (net/socket.c:2784)
[   21.246821][  T269]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   21.247012][  T269]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   21.247226][  T269]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   21.247407][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.247588][  T269]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.247766][  T269]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.247965][  T269]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.248143][  T269]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.248351][  T269] RIP: 0033:0x7f702229108e
[   21.248535][  T269] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.249069][  T269] RSP: 002b:00007ffef7f2e100 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.249311][  T269] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f702229108e
[   21.249553][  T269] RDX: 0000000000000000 RSI: 00007ffef7f2e1b0 RDI: 0000000000000005
[   21.249796][  T269] RBP: 00007ffef7f2e110 R08: 0000000000000000 R09: 0000000000000000
[   21.250059][  T269] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c5
[   21.250300][  T269] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffef7f2e880
| [   21.274642][  T270] ------------[ cut here ]------------
| [   21.274812][  T270] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/270
| [   21.275047][  T270] Modules linked in:
| [   21.275407][  T270] Tainted: [W]=WARN
[   21.275507][  T270] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.275668][  T270] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.275851][  T270] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.276308][  T270] RSP: 0018:ffa0000000c17150 EFLAGS: 00010286
[   21.276471][  T270] RAX: 00000000ffffffa6 RBX: ff11000004c86e40 RCX: 1ff4000000182df0
[   21.276664][  T270] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004c86efc
[   21.276870][  T270] RBP: ff1100001294c000 R08: 1fe2200000990de1 R09: ff11000002780b58
[   21.277062][  T270] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   21.277256][  T270] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012e6a6c0
[   21.277466][  T270] FS:  00007f0f62753840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   21.277691][  T270] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.277861][  T270] CR2: 00000000004ebb20 CR3: 000000000b284004 CR4: 0000000000771ef0
[   21.278055][  T270] PKRU: 55555554
[   21.278154][  T270] Call Trace:
[   21.278250][  T270]  <TASK>
[   21.278317][  T270]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   21.278446][  T270]  ? notifier_call_chain (kernel/notifier.c:85)
[   21.278574][  T270]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   21.278673][  T270]  netif_state_change (net/core/dev.c:1605)
[   21.278808][  T270]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   21.278972][  T270]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   21.279136][  T270]  linkwatch_sync_dev (net/core/link_watch.c:295)
[   21.279265][  T270]  rtnl_getlink (net/core/rtnetlink.c:4273)
[   21.279395][  T270]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.279524][  T270]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.279653][  T270]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   21.279781][  T270]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   21.279919][  T270]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.280049][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.280194][  T270]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.280321][  T270]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.280451][  T270]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   21.280578][  T270]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.280708][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.280850][  T270]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.280981][  T270]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   21.281109][  T270]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   21.281238][  T270]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.281364][  T270]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.281492][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.281624][  T270]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.281751][  T270]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.281969][  T270]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   21.282099][  T270]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.282227][  T270]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.282359][  T270]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.282487][  T270]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.282616][  T270]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.282747][  T270]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.282963][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.283095][  T270]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   21.283225][  T270]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   21.283355][  T270]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   21.283487][  T270]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   21.283616][  T270]  ? copy_msghdr_from_user (net/socket.c:2635)
[   21.283745][  T270]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   21.283982][  T270]  ? move_addr_to_kernel (net/socket.c:258)
[   21.284194][  T270]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.284327][  T270]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   21.284490][  T270]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.284618][  T270]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   21.284779][  T270]  ___sys_sendmsg (net/socket.c:2752)
[   21.284983][  T270]  ? copy_msghdr_from_user (net/socket.c:2603)
[   21.285111][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.285251][  T270]  ? move_addr_to_user (./include/linux/uaccess.h:236 net/socket.c:302)
[   21.285378][  T270]  ? do_getsockname (net/socket.c:2192)
[   21.285509][  T270]  __sys_sendmsg (net/socket.c:2784)
[   21.285638][  T270]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   21.285770][  T270]  ? __sys_getsockname (net/socket.c:2210)
[   21.285955][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.286085][  T270]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.286213][  T270]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.286341][  T270]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.286473][  T270]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.286634][  T270] RIP: 0033:0x7f0f6298d08e
[   21.286768][  T270] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.287289][  T270] RSP: 002b:00007fffaf4e1ed0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.287484][  T270] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0f6298d08e
[   21.287675][  T270] RDX: 0000000000000000 RSI: 00007fffaf4e1f80 RDI: 0000000000000006
[   21.287925][  T270] RBP: 00007fffaf4e1ee0 R08: 0000000000000000 R09: 0000000000000000
[   21.288118][  T270] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c4
[   21.288311][  T270] R13: 00007fffaf4e2030 R14: 0000000000000000 R15: 0000000000000004
| [   21.299178][  T270] ------------[ cut here ]------------
| [   21.299335][  T270] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/270
| [   21.299583][  T270] Modules linked in:
| [   21.299974][  T270] Tainted: [W]=WARN
[   21.300074][  T270] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.300241][  T270] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   21.300409][  T270] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   21.300881][  T270] RSP: 0018:ffa0000000c17050 EFLAGS: 00010286
[   21.301044][  T270] RAX: 00000000ffffffa6 RBX: ff1100001184cac0 RCX: 1ff4000000182dd0
[   21.301236][  T270] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001184cb7c
[   21.301428][  T270] RBP: ff1100001294c000 R08: 1fe2200002309971 R09: ff11000002780b80
[   21.301621][  T270] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   21.301817][  T270] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   21.302017][  T270] FS:  00007f0f62753840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   21.302244][  T270] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.302406][  T270] CR2: 00007f54b9a5b574 CR3: 000000000b284006 CR4: 0000000000771ef0
[   21.302599][  T270] PKRU: 55555554
[   21.302695][  T270] Call Trace:
[   21.302792][  T270]  <TASK>
[   21.302869][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.302999][  T270]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   21.303128][  T270]  notifier_call_chain (kernel/notifier.c:85)
[   21.303258][  T270]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   21.303388][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.303518][  T270]  ? netif_set_group (net/core/dev.c:9947)
[   21.303650][  T270]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   21.303817][  T270]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   21.303956][  T270]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   21.304086][  T270]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   21.304216][  T270]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   21.304377][  T270]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.304507][  T270]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.304639][  T270]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.304768][  T270]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.304914][  T270]  ? __kernel_text_address (kernel/extable.c:79)
[   21.305044][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.305175][  T270]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.305303][  T270]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   21.305434][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.305566][  T270]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   21.305695][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.305829][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.305967][  T270]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   21.306098][  T270]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   21.306226][  T270]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   21.306355][  T270]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   21.306489][  T270]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   21.306624][  T270]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   21.306757][  T270]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.306895][  T270]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.307024][  T270]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.307153][  T270]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   21.307284][  T270]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.307414][  T270]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.307543][  T270]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.307671][  T270]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.307800][  T270]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   21.307940][  T270]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   21.308071][  T270]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   21.308199][  T270]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.308327][  T270]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.308455][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.308587][  T270]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   21.308715][  T270]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.308852][  T270]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   21.308982][  T270]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.309112][  T270]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.309244][  T270]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.309373][  T270]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.309507][  T270]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.309637][  T270]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.309767][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.309909][  T270]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   21.310040][  T270]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   21.310170][  T270]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   21.310300][  T270]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   21.310429][  T270]  ? copy_msghdr_from_user (net/socket.c:2635)
[   21.310558][  T270]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   21.310717][  T270]  ? move_addr_to_kernel (net/socket.c:258)
[   21.310856][  T270]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.310985][  T270]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   21.311115][  T270]  ___sys_sendmsg (net/socket.c:2752)
[   21.311244][  T270]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   21.311403][  T270]  ? copy_msghdr_from_user (net/socket.c:2603)
[   21.311551][  T270]  __sys_sendmsg (net/socket.c:2784)
[   21.311681][  T270]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   21.311811][  T270]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   21.311979][  T270]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   21.312108][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   21.312240][  T270]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.312370][  T270]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   21.312501][  T270]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.312632][  T270]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.312793][  T270] RIP: 0033:0x7f0f6298d08e
[   21.312939][  T270] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.313400][  T270] RSP: 002b:00007fffaf4e3b50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.313595][  T270] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f0f6298d08e
[   21.313787][  T270] RDX: 0000000000000000 RSI: 00007fffaf4e3c00 RDI: 0000000000000005
[   21.313990][  T270] RBP: 00007fffaf4e3b60 R08: 0000000000000000 R09: 0000000000000000
[   21.314182][  T270] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c5
[   21.314376][  T270] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffaf4e42d0
| [   24.325407][   T12] ------------[ cut here ]------------
| [   24.325580][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   24.325823][   T12] Modules linked in:
| [   24.326211][   T12] Tainted: [W]=WARN
[   24.326303][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.326457][   T12] Workqueue: netns cleanup_net
[   24.326585][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.326742][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.327181][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.327332][   T12] RAX: 00000000ffffffa6 RBX: ff11000013c0d540 RCX: 1ff4000000018eed
[   24.327512][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013c0d5fc
[   24.327705][   T12] RBP: ff1100000528c000 R08: 1fe2200002781ac1 R09: ff11000001aed1d0
[   24.327893][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   24.328078][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.328263][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.328470][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.328620][   T12] CR2: 000056117ba87d5c CR3: 000000000e46f002 CR4: 0000000000771ef0
[   24.328799][   T12] PKRU: 55555554
[   24.328899][   T12] Call Trace:
[   24.328989][   T12]  <TASK>
[   24.329052][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.329206][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.329356][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.329478][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.329599][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.329717][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.329851][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.329973][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.330094][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.330217][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.330342][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.330463][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.330589][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.330711][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.330845][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.330968][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.331092][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.331221][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.331346][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.331470][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.331588][   T12]  kthread (kernel/kthread.c:436)
[   24.331679][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.331846][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.331973][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.332095][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.332244][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.332366][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.332488][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.342185][   T12] ------------[ cut here ]------------
| [   24.342313][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   24.342549][   T12] Modules linked in:
| [   24.342925][   T12] Tainted: [W]=WARN
[   24.343014][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.343165][   T12] Workqueue: netns cleanup_net
[   24.343290][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.343449][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.343877][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.344028][   T12] RAX: 00000000ffffffa6 RBX: ff11000013c0dc40 RCX: 1ff4000000018eed
[   24.344204][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013c0dcfc
[   24.344385][   T12] RBP: ff11000012991000 R08: 1fe2200002781ba1 R09: ff11000001aed1d0
[   24.344566][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   24.344749][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.344942][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.345155][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.345307][   T12] CR2: 000056117ba87d5c CR3: 000000003174d001 CR4: 0000000000771ef0
[   24.345492][   T12] PKRU: 55555554
[   24.345583][   T12] Call Trace:
[   24.345671][   T12]  <TASK>
[   24.345736][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.345898][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.346045][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.346167][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.346293][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.346413][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.346534][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.346657][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.346781][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.346908][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.347028][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.347154][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.347273][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.347396][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.347516][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.347635][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.347759][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.347888][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.348014][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.348137][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.348256][   T12]  kthread (kernel/kthread.c:436)
[   24.348347][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.348494][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.348615][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.348736][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.348893][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.349013][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.349132][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.351388][   T12] ------------[ cut here ]------------
| [   24.351506][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   24.351737][   T12] Modules linked in:
| [   24.352119][   T12] Tainted: [W]=WARN
[   24.352210][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.352363][   T12] Workqueue: netns cleanup_net
[   24.352489][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.352646][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.353095][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.353247][   T12] RAX: 00000000ffffffa6 RBX: ff110000061cf8c0 RCX: 1ff4000000018eed
[   24.353428][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000061cf97c
[   24.353610][   T12] RBP: ff1100000df9c000 R08: 1fe2200000c39f31 R09: ff11000001aed1d0
[   24.353794][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   24.353984][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.354167][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.354380][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.354530][   T12] CR2: 000056117ba87d5c CR3: 000000003174d001 CR4: 0000000000771ef0
[   24.354722][   T12] PKRU: 55555554
[   24.354819][   T12] Call Trace:
[   24.354920][   T12]  <TASK>
[   24.354982][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.355139][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.355287][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.355409][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.355532][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.355650][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.355770][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.355900][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.356020][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.356140][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.356263][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.356383][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.356502][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.356624][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.356744][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.356881][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.357004][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.357122][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.357248][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.357371][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.357492][   T12]  kthread (kernel/kthread.c:436)
[   24.357584][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.357736][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.357863][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.357982][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.358131][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.358250][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.358371][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.360599][   T12] ------------[ cut here ]------------
| [   24.360715][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   24.360960][   T12] Modules linked in:
| [   24.361321][   T12] Tainted: [W]=WARN
[   24.361485][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.361634][   T12] Workqueue: netns cleanup_net
[   24.361760][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.361921][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.362418][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.362644][   T12] RAX: 00000000ffffffa6 RBX: ff110000061cf540 RCX: 1ff4000000018eed
[   24.362828][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000061cf5fc
[   24.363010][   T12] RBP: ff110000082f1000 R08: 1fe2200000c39ec1 R09: ff11000001aed1d0
[   24.363261][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   24.363437][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.363615][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.363911][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.364065][   T12] CR2: 000056117ba87d5c CR3: 000000003174d001 CR4: 0000000000771ef0
[   24.364337][   T12] PKRU: 55555554
[   24.364426][   T12] Call Trace:
[   24.364518][   T12]  <TASK>
[   24.364580][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.364732][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.364960][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.365082][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.365202][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.365320][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.365513][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.365636][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.365760][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.365958][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.366081][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.366205][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.366324][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.366471][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.366587][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.366707][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.366910][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.367030][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.367156][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.367277][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.367396][   T12]  kthread (kernel/kthread.c:436)
[   24.367492][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.367641][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.367762][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.367893][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.368042][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.368163][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.368282][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.370361][   T12] ------------[ cut here ]------------
| [   24.370549][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   24.370786][   T12] Modules linked in:
| [   24.371156][   T12] Tainted: [W]=WARN
[   24.371250][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.371399][   T12] Workqueue: netns cleanup_net
[   24.371529][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.371771][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.372210][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.372359][   T12] RAX: 00000000ffffffa6 RBX: ff110000061cf1c0 RCX: 1ff4000000018eed
[   24.372533][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000061cf27c
[   24.372783][   T12] RBP: ff11000008d49000 R08: 1fe2200000c39e51 R09: ff11000001aed1d0
[   24.372972][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   24.373222][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.373405][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.373612][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.373840][   T12] CR2: 000056117ba87d5c CR3: 000000003174d001 CR4: 0000000000771ef0
[   24.374024][   T12] PKRU: 55555554
[   24.374112][   T12] Call Trace:
[   24.374202][   T12]  <TASK>
[   24.374336][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.374492][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.374644][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.374768][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.374971][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.375094][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.375288][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.375411][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.375606][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.375728][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.375868][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.375991][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.376263][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.376390][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.376510][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.376634][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.376764][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.376900][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.377034][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.377158][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.377281][   T12]  kthread (kernel/kthread.c:436)
[   24.377372][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.377595][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.377715][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.377853][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.378076][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.378197][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.378319][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.398157][   T12] ------------[ cut here ]------------
| [   24.398297][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   24.398544][   T12] Modules linked in:
| [   24.398940][   T12] Tainted: [W]=WARN
[   24.399037][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.399195][   T12] Workqueue: netns cleanup_net
[   24.399327][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.399489][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.399943][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   24.400101][   T12] RAX: 00000000ffffffa6 RBX: ff110000061cee40 RCX: 1ff4000000018eaf
[   24.400291][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000061ceefc
[   24.400475][   T12] RBP: ff1100001294c000 R08: 1fe2200000c39de1 R09: ff11000001aed1d0
[   24.400662][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   24.400860][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013659000
[   24.401060][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.401279][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.401435][   T12] CR2: 0000563f9f960ae8 CR3: 0000000013d67004 CR4: 0000000000771ef0
[   24.401622][   T12] PKRU: 55555554
[   24.401714][   T12] Call Trace:
[   24.401807][   T12]  <TASK>
[   24.401887][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.402013][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.402108][   T12]  netif_close_many (net/core/dev.c:1804)
[   24.402236][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.402360][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.402492][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.402616][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   24.402741][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   24.402908][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   24.403065][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.403191][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.403344][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.403468][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.403593][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   24.403748][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   24.403886][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   24.404013][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   24.404139][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   24.404264][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   24.404391][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   24.404516][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.404640][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.404768][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.404906][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.405029][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.405154][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.405277][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.405403][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.405529][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.405655][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.405787][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.405927][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.406051][   T12]  kthread (kernel/kthread.c:436)
[   24.406145][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.406300][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.406424][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.406549][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.406705][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.406840][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.406965][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.409505][   T12] ------------[ cut here ]------------
| [   24.409629][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   24.409881][   T12] Modules linked in:
| [   24.410260][   T12] Tainted: [W]=WARN
[   24.410354][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.410512][   T12] Workqueue: netns cleanup_net
[   24.410641][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.410803][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.411804][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   24.412057][   T12] RAX: 00000000ffffffa6 RBX: ff1100000dbdf1c0 RCX: 1ff4000000018eaf
[   24.412243][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbdf27c
[   24.412432][   T12] RBP: ff11000013659000 R08: 1fe2200001b7be51 R09: ff11000001aed1d0
[   24.412618][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   24.412816][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   24.413113][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.413333][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.413490][   T12] CR2: 0000563f9f960ae8 CR3: 000000003174d001 CR4: 0000000000771ef0
[   24.413680][   T12] PKRU: 55555554
[   24.413773][   T12] Call Trace:
[   24.413973][   T12]  <TASK>
[   24.414038][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.414171][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.414299][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.414394][   T12]  netif_close_many (net/core/dev.c:1804)
[   24.414522][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.414647][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.414773][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.414906][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   24.415034][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   24.415191][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   24.415348][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.415472][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.415628][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.415752][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.415886][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   24.416045][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   24.416173][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   24.416304][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   24.416428][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   24.416555][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   24.416682][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   24.416809][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.416944][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.417072][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.417196][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.417326][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.417453][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.417576][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.417703][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.417993][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.418124][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.418254][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.418383][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.418510][   T12]  kthread (kernel/kthread.c:436)
[   24.418604][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.418763][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.418902][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.419028][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.419182][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.419308][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.419433][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.422356][   T12] ------------[ cut here ]------------
| [   24.422483][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   24.422719][   T12] Modules linked in:
| [   24.423103][   T12] Tainted: [W]=WARN
[   24.423197][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.423348][   T12] Workqueue: netns cleanup_net
[   24.423472][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.423633][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.424077][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   24.424231][   T12] RAX: 00000000ffffffa6 RBX: ff110000098d9c40 RCX: 1ff4000000018ed5
[   24.424410][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098d9cfc
[   24.424591][   T12] RBP: ff1100001294c000 R08: 1fe220000131b3a1 R09: ff11000001aed1d0
[   24.424772][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   24.424963][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.425145][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.425361][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.425517][   T12] CR2: 0000563f9f960ae8 CR3: 000000003174d001 CR4: 0000000000771ef0
[   24.425699][   T12] PKRU: 55555554
[   24.425791][   T12] Call Trace:
[   24.425890][   T12]  <TASK>
[   24.425953][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.426106][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.426258][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.426379][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.426500][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   24.426653][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   24.426775][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   24.426910][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   24.427030][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   24.427154][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   24.427276][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.427395][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.427519][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.427639][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.427759][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.427892][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.428011][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.428134][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.428257][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.428380][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.428506][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.428630][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.428751][   T12]  kthread (kernel/kthread.c:436)
[   24.428850][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.429002][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.429122][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.429242][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.429396][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.429518][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.429638][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.432050][   T12] ------------[ cut here ]------------
| [   24.432169][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   24.432403][   T12] Modules linked in:
| [   24.432768][   T12] Tainted: [W]=WARN
[   24.433316][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.433467][   T12] Workqueue: netns cleanup_net
[   24.433590][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.433745][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.434228][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   24.434378][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cf91700 RCX: 1ff4000000018ed5
[   24.434560][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf917bc
[   24.434740][   T12] RBP: ff11000013659000 R08: 1fe22000019f22f9 R09: ff11000001aed1d0
[   24.434976][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   24.435150][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.435326][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.435535][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.435684][   T12] CR2: 0000563f9f960ae8 CR3: 000000003174d001 CR4: 0000000000771ef0
[   24.435918][   T12] PKRU: 55555554
[   24.436006][   T12] Call Trace:
[   24.436095][   T12]  <TASK>
[   24.436157][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.436315][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.436466][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.436587][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.436706][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   24.436916][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   24.437039][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   24.437163][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   24.437283][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   24.437405][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   24.437528][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.437647][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.437771][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.437948][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.438067][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.438190][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.438310][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.438435][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.438560][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.438680][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.438804][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.438981][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.439101][   T12]  kthread (kernel/kthread.c:436)
[   24.439196][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.439348][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.439468][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.439589][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.439738][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.439910][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.440031][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.443362][   T12] ------------[ cut here ]------------
| [   24.443498][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   24.443737][   T12] Modules linked in:
| [   24.444119][   T12] Tainted: [W]=WARN
[   24.444209][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.444357][   T12] Workqueue: netns cleanup_net
[   24.444488][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.444645][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.445084][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   24.445240][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cf91000 RCX: 1ff4000000018ed5
[   24.445419][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf910bc
[   24.445598][   T12] RBP: ff11000007911000 R08: 1fe22000019f2219 R09: ff11000001aed1d0
[   24.445774][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.445960][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.446143][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   24.446352][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.446501][   T12] CR2: 00007fcabab77430 CR3: 000000000f2de006 CR4: 0000000000771ef0
[   24.446678][   T12] PKRU: 55555554
[   24.446772][   T12] Call Trace:
[   24.446871][   T12]  <TASK>
[   24.446933][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.447089][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.447236][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.447356][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.447475][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   24.447631][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   24.447753][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   24.447881][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   24.448000][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   24.448121][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   24.448242][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.448361][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.448485][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.448605][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.448726][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.448914][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.449035][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.449161][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.449285][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.449403][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.449528][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.449653][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.449774][   T12]  kthread (kernel/kthread.c:436)
[   24.449928][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.450079][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.450200][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.450321][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.450470][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.450591][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.450711][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.459219][  T284] ------------[ cut here ]------------
| [   24.459361][  T284] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/284
| [   24.459589][  T284] Modules linked in:
| [   24.459968][  T284] Tainted: [W]=WARN
[   24.460068][  T284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.460231][  T284] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.460401][  T284] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.460878][  T284] RSP: 0018:ffa00000008e7a80 EFLAGS: 00010286
[   24.461042][  T284] RAX: 00000000ffffffa6 RBX: ff11000009029700 RCX: 1ff400000011cf16
[   24.461235][  T284] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000090297bc
[   24.461430][  T284] RBP: ff110000020bc000 R08: 1fe22000012052f9 R09: ff1100000fba2e80
[   24.461624][  T284] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.461822][  T284] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000020bc000
[   24.462023][  T284] FS:  00007fcaba970840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   24.462251][  T284] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.462416][  T284] CR2: 00007fcabab77430 CR3: 000000000f2de006 CR4: 0000000000771ef0
[   24.462612][  T284] PKRU: 55555554
[   24.462709][  T284] Call Trace:
[   24.462806][  T284]  <TASK>
[   24.462880][  T284]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.463010][  T284]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.463140][  T284]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.463241][  T284]  register_netdevice (net/core/dev.c:11488)
[   24.463374][  T284]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.463537][  T284]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.463670][  T284]  register_netdev (net/core/dev.c:11552)
[   24.463801][  T284]  loopback_net_init (drivers/net/loopback.c:218)
[   24.463943][  T284]  ops_init (net/core/net_namespace.c:137)
[   24.464042][  T284]  setup_net (net/core/net_namespace.c:446)
[   24.464144][  T284]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.464273][  T284]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.464404][  T284]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.464536][  T284]  copy_net_ns (net/core/net_namespace.c:579)
[   24.464669][  T284]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.464804][  T284]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.464944][  T284]  ksys_unshare (kernel/fork.c:3243)
[   24.465075][  T284]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.465207][  T284]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.465338][  T284]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.465471][  T284]  ? __ia32_sys_open (fs/open.c:1374)
[   24.465604][  T284]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.465735][  T284]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.465877][  T284]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.466007][  T284]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.466141][  T284]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.466271][  T284]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.466433][  T284] RIP: 0033:0x7fcabac32bcb
[   24.466572][  T284] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.467050][  T284] RSP: 002b:00007ffffe15b888 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.467247][  T284] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcabac32bcb
[   24.467442][  T284] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.467639][  T284] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.467847][  T284] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffffe15dab0
[   24.468042][  T284] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffffe15f875
| [   24.486053][  T284] ------------[ cut here ]------------
| [   24.486240][  T284] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/284
| [   24.486511][  T284] Modules linked in:
| [   24.487012][  T284] Tainted: [W]=WARN
[   24.487155][  T284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.487368][  T284] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.487588][  T284] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.488112][  T284] RSP: 0018:ffa00000008e7918 EFLAGS: 00010286
[   24.488325][  T284] RAX: 00000000ffffffa6 RBX: ff1100000931c740 RCX: 1ff400000011cee9
[   24.488569][  T284] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000931c7fc
[   24.488812][  T284] RBP: ff11000009041000 R08: 1fe2200001263901 R09: ff1100000fba2e80
[   24.489072][  T284] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.489315][  T284] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009041000
[   24.489563][  T284] FS:  00007fcaba970840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   24.489859][  T284] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.490068][  T284] CR2: 00007f6b770ed000 CR3: 000000000f2de006 CR4: 0000000000771ef0
[   24.490311][  T284] PKRU: 55555554
[   24.490455][  T284] Call Trace:
[   24.490601][  T284]  <TASK>
[   24.490716][  T284]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.490916][  T284]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.491096][  T284]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.491243][  T284]  register_netdevice (net/core/dev.c:11488)
[   24.491423][  T284]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.491634][  T284]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.491824][  T284]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   24.492015][  T284]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   24.492193][  T284]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   24.492371][  T284]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   24.492551][  T284]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   24.492732][  T284]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   24.492935][  T284]  ops_init (net/core/net_namespace.c:137)
[   24.493084][  T284]  setup_net (net/core/net_namespace.c:446)
[   24.493234][  T284]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.493413][  T284]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.493597][  T284]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.493780][  T284]  copy_net_ns (net/core/net_namespace.c:579)
[   24.493975][  T284]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.494156][  T284]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.494334][  T284]  ksys_unshare (kernel/fork.c:3243)
[   24.494515][  T284]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.494696][  T284]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.494895][  T284]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.495074][  T284]  ? __ia32_sys_open (fs/open.c:1374)
[   24.495255][  T284]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.495433][  T284]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.495612][  T284]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.495790][  T284]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.495987][  T284]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.496165][  T284]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.496376][  T284] RIP: 0033:0x7fcabac32bcb
[   24.496561][  T284] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.497092][  T284] RSP: 002b:00007ffffe15b888 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.497339][  T284] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcabac32bcb
[   24.497580][  T284] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.497830][  T284] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.498087][  T284] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffffe15dab0
[   24.498329][  T284] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffffe15f875
| [   24.502610][  T284] ------------[ cut here ]------------
| [   24.502793][  T284] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/284
| [   24.503091][  T284] Modules linked in:
| [   24.503556][  T284] Tainted: [W]=WARN
[   24.503703][  T284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.503937][  T284] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.504156][  T284] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.504672][  T284] RSP: 0018:ffa00000008e78f8 EFLAGS: 00010286
[   24.504908][  T284] RAX: 00000000ffffffa6 RBX: ff1100000931d8c0 RCX: 1ff400000011cee5
[   24.505151][  T284] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000931d97c
[   24.505397][  T284] RBP: ff11000008ba1000 R08: 1fe2200001263b31 R09: ff1100000fba2e80
[   24.505641][  T284] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.505910][  T284] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008ba1000
[   24.506157][  T284] FS:  00007fcaba970840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   24.506436][  T284] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.506648][  T284] CR2: 00007f6b770ed000 CR3: 000000000f2de006 CR4: 0000000000771ef0
[   24.506914][  T284] PKRU: 55555554
[   24.507066][  T284] Call Trace:
[   24.507213][  T284]  <TASK>
[   24.507331][  T284]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.507513][  T284]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.507693][  T284]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.507860][  T284]  register_netdevice (net/core/dev.c:11488)
[   24.508046][  T284]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.508264][  T284]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.508449][  T284]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   24.508630][  T284]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   24.508809][  T284]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   24.509011][  T284]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   24.509193][  T284]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   24.509374][  T284]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   24.509557][  T284]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.509739][  T284]  vti_init_net (net/ipv4/ip_vti.c:517)
[   24.509944][  T284]  ops_init (net/core/net_namespace.c:137)
[   24.510094][  T284]  setup_net (net/core/net_namespace.c:446)
[   24.510242][  T284]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.510420][  T284]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.510602][  T284]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.510785][  T284]  copy_net_ns (net/core/net_namespace.c:579)
[   24.510985][  T284]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.511173][  T284]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.511354][  T284]  ksys_unshare (kernel/fork.c:3243)
[   24.511535][  T284]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.511715][  T284]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.511915][  T284]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.512100][  T284]  ? __ia32_sys_open (fs/open.c:1374)
[   24.512284][  T284]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.512467][  T284]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.512646][  T284]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.512845][  T284]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.513024][  T284]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.513203][  T284]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.513415][  T284] RIP: 0033:0x7fcabac32bcb
[   24.513600][  T284] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.514134][  T284] RSP: 002b:00007ffffe15b888 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.514380][  T284] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcabac32bcb
[   24.514626][  T284] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.514894][  T284] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.515141][  T284] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffffe15dab0
[   24.515384][  T284] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffffe15f875
| [   24.520073][  T284] ------------[ cut here ]------------
| [   24.520252][  T284] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/284
| [   24.520524][  T284] Modules linked in:
| [   24.521006][  T284] Tainted: [W]=WARN
[   24.521152][  T284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.521361][  T284] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.521579][  T284] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.522658][  T284] RSP: 0018:ffa00000008e7a78 EFLAGS: 00010286
[   24.522949][  T284] RAX: 00000000ffffffa6 RBX: ff1100000c83d000 RCX: 1ff400000011cf15
[   24.523251][  T284] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c83d0bc
[   24.523550][  T284] RBP: ff1100000a4cc000 R08: 1fe2200001907a19 R09: ff1100000fba2e80
[   24.523871][  T284] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   24.524168][  T284] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a4cc000
[   24.524478][  T284] FS:  00007fcaba970840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   24.524811][  T284] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.525102][  T284] CR2: 00007f6b770ed000 CR3: 000000000f2de006 CR4: 0000000000771ef0
[   24.525405][  T284] PKRU: 55555554
[   24.525603][  T284] Call Trace:
[   24.525802][  T284]  <TASK>
[   24.525992][  T284]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.526227][  T284]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.526459][  T284]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.526660][  T284]  register_netdevice (net/core/dev.c:11488)
[   24.526917][  T284]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.527184][  T284]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.527420][  T284]  register_netdev (net/core/dev.c:11552)
[   24.527655][  T284]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   24.527908][  T284]  ops_init (net/core/net_namespace.c:137)
[   24.528113][  T284]  setup_net (net/core/net_namespace.c:446)
[   24.528315][  T284]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.528552][  T284]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.528783][  T284]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.529034][  T284]  copy_net_ns (net/core/net_namespace.c:579)
[   24.529268][  T284]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.529505][  T284]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.529740][  T284]  ksys_unshare (kernel/fork.c:3243)
[   24.529995][  T284]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.530233][  T284]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.530464][  T284]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.530698][  T284]  ? __ia32_sys_open (fs/open.c:1374)
[   24.530955][  T284]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.531192][  T284]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.531425][  T284]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.531661][  T284]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.531914][  T284]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.532153][  T284]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.532419][  T284] RIP: 0033:0x7fcabac32bcb
[   24.532660][  T284] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.533246][  T284] RSP: 002b:00007ffffe15b888 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.533551][  T284] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcabac32bcb
[   24.533870][  T284] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.534166][  T284] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.534462][  T284] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffffe15dab0
[   24.534762][  T284] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffffe15f875
| [   24.542106][   T12] ------------[ cut here ]------------
| [   24.542282][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   24.542512][   T12] Modules linked in:
| [   24.542874][   T12] Tainted: [W]=WARN
[   24.542990][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.543139][   T12] Workqueue: netns cleanup_net
[   24.543262][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.543416][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.543845][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.543998][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cfb4580 RCX: 1ff4000000018eed
[   24.544172][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfb463c
[   24.544346][   T12] RBP: ff11000005f5c000 R08: 1fe22000019f68c9 R09: ff11000001aed1d0
[   24.544521][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.544699][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.544886][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   24.545089][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.545240][   T12] CR2: 00007fcabab77430 CR3: 000000000f2de006 CR4: 0000000000771ef0
[   24.545417][   T12] PKRU: 55555554
[   24.545505][   T12] Call Trace:
[   24.545591][   T12]  <TASK>
[   24.545651][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.545800][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.545955][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.546073][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.546190][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.546306][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.546424][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.546546][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.546665][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.546784][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.546913][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.547036][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.547155][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.547274][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.547389][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.547507][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.547628][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.547744][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.547876][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.547995][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.548112][   T12]  kthread (kernel/kthread.c:436)
[   24.548205][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.548349][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.548465][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.548583][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.548731][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.548856][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.548973][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.551497][   T12] ------------[ cut here ]------------
| [   24.551617][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   24.551862][   T12] Modules linked in:
| [   24.552219][   T12] Tainted: [W]=WARN
[   24.552307][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.552454][   T12] Workqueue: netns cleanup_net
[   24.552576][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.552730][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.553168][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.553316][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e537c40 RCX: 1ff4000000018eed
[   24.553497][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e537cfc
[   24.553671][   T12] RBP: ff11000005231000 R08: 1fe2200001ca6fa1 R09: ff11000001aed1d0
[   24.553856][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.554035][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.554214][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   24.554419][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.554565][   T12] CR2: 00007fcabab77430 CR3: 000000000f2de006 CR4: 0000000000771ef0
[   24.554742][   T12] PKRU: 55555554
[   24.554843][   T12] Call Trace:
[   24.554931][   T12]  <TASK>
[   24.554992][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.555143][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.555288][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.555406][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.555524][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.555641][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.555765][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.555896][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.556018][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.556134][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.556254][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.556376][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.556496][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.556614][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.556731][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.556863][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.556988][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.557106][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.557230][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.557351][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.557469][   T12]  kthread (kernel/kthread.c:436)
[   24.557559][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.557706][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.557830][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.557955][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.558103][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.558226][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.558344][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.560643][   T12] ------------[ cut here ]------------
| [   24.560763][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   24.561004][   T12] Modules linked in:
| [   24.561370][   T12] Tainted: [W]=WARN
[   24.561460][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.561612][   T12] Workqueue: netns cleanup_net
[   24.561736][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.561895][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.562316][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.562467][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e537380 RCX: 1ff4000000018eed
[   24.562640][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e53743c
[   24.562820][   T12] RBP: ff110000089a1000 R08: 1fe2200001ca6e89 R09: ff11000001aed1d0
[   24.563001][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.563176][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.563352][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   24.563556][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.563708][   T12] CR2: 00007fcabab77430 CR3: 000000000f2de006 CR4: 0000000000771ef0
[   24.563894][   T12] PKRU: 55555554
[   24.563983][   T12] Call Trace:
[   24.564071][   T12]  <TASK>
[   24.564134][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.564285][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.564433][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.564555][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.564674][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.564791][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.564918][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.565041][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.565162][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.565279][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.565401][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.565521][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.565643][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.565764][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.565889][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.566010][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.566132][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.566248][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.566373][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.566507][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.566625][   T12]  kthread (kernel/kthread.c:436)
[   24.566715][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.566874][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.566992][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.567113][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.567264][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.567389][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.567508][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.579191][   T12] ------------[ cut here ]------------
| [   24.579330][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   24.579564][   T12] Modules linked in:
| [   24.580006][   T12] Tainted: [W]=WARN
[   24.580095][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.580243][   T12] Workqueue: netns cleanup_net
[   24.580369][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.580522][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.580953][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.581104][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e537000 RCX: 1ff4000000018eed
[   24.581280][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e5370bc
[   24.581457][   T12] RBP: ff11000008649000 R08: 1fe2200001ca6e19 R09: ff11000001aed1d0
[   24.581631][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.581808][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.581990][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   24.582195][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.582343][   T12] CR2: 00007fcabab77430 CR3: 000000000f2de006 CR4: 0000000000771ef0
[   24.582521][   T12] PKRU: 55555554
[   24.582608][   T12] Call Trace:
[   24.582695][   T12]  <TASK>
[   24.582757][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.582915][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.583066][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.583185][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.583304][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.583421][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.583549][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.583668][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.583788][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.583913][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.584033][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.584153][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.584270][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.584391][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.584511][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.584632][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.584755][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.584882][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.585004][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.585128][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.585246][   T12]  kthread (kernel/kthread.c:436)
[   24.585337][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.585486][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.585605][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.585729][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.585886][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.586007][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.586129][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.588119][   T12] ------------[ cut here ]------------
| [   24.588235][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   24.588464][   T12] Modules linked in:
| [   24.588821][   T12] Tainted: [W]=WARN
[   24.588915][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.589062][   T12] Workqueue: netns cleanup_net
[   24.589183][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.589338][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.589761][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   24.589920][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e536c80 RCX: 1ff4000000018eed
[   24.590096][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e536d3c
[   24.590270][   T12] RBP: ff1100000a3d1000 R08: 1fe2200001ca6da9 R09: ff11000001aed1d0
[   24.590448][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.590622][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.590800][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   24.591023][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.591173][   T12] CR2: 00007fcabab77430 CR3: 000000000f2de006 CR4: 0000000000771ef0
[   24.591348][   T12] PKRU: 55555554
[   24.591435][   T12] Call Trace:
[   24.591523][   T12]  <TASK>
[   24.591584][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.591741][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.591896][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   24.592015][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   24.592133][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   24.592250][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   24.592367][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.592486][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   24.592606][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.592723][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.592850][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.592968][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.593085][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.593203][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.593322][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.593441][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.593569][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.593686][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.593808][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.593949][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.594067][   T12]  kthread (kernel/kthread.c:436)
[   24.594156][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.594308][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.594426][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.594547][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.594698][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.594827][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.594951][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.599654][  T284] ------------[ cut here ]------------
| [   24.599801][  T284] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/284
| [   24.600041][  T284] Modules linked in:
| [   24.600415][  T284] Tainted: [W]=WARN
[   24.600514][  T284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.600678][  T284] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.600862][  T284] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.601334][  T284] RSP: 0018:ffa00000008e7a68 EFLAGS: 00010286
[   24.601499][  T284] RAX: 00000000ffffffa6 RBX: ff11000009b71c40 RCX: 1ff400000011cf13
[   24.601694][  T284] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009b71cfc
[   24.601901][  T284] RBP: ff1100000a4d4000 R08: 1fe220000136e3a1 R09: ff1100000fba2e80
[   24.602099][  T284] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   24.602295][  T284] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a4d4000
[   24.602494][  T284] FS:  00007fcaba970840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   24.602725][  T284] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.602909][  T284] CR2: 0000563f9f964d5c CR3: 000000000f2de002 CR4: 0000000000771ef0
[   24.603107][  T284] PKRU: 55555554
[   24.603205][  T284] Call Trace:
[   24.603302][  T284]  <TASK>
[   24.603370][  T284]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.603506][  T284]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.603638][  T284]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.603739][  T284]  register_netdevice (net/core/dev.c:11488)
[   24.603882][  T284]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.604046][  T284]  register_netdev (net/core/dev.c:11552)
[   24.604176][  T284]  sit_init_net (net/ipv6/sit.c:1860)
[   24.604308][  T284]  ops_init (net/core/net_namespace.c:137)
[   24.604407][  T284]  setup_net (net/core/net_namespace.c:446)
[   24.604506][  T284]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.604636][  T284]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.604769][  T284]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.604926][  T284]  copy_net_ns (net/core/net_namespace.c:579)
[   24.605056][  T284]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.605191][  T284]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.605371][  T284]  ksys_unshare (kernel/fork.c:3243)
[   24.605559][  T284]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.605742][  T284]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.605954][  T284]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.606148][  T284]  ? __ia32_sys_open (fs/open.c:1374)
[   24.606337][  T284]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.606525][  T284]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.606698][  T284]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.606843][  T284]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.606975][  T284]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.607106][  T284]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.607269][  T284] RIP: 0033:0x7fcabac32bcb
[   24.607407][  T284] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.607951][  T284] RSP: 002b:00007ffffe15b888 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.608170][  T284] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcabac32bcb
[   24.608362][  T284] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.608556][  T284] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.608749][  T284] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffffe15dab0
[   24.608952][  T284] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffffe15f875
| [   24.612643][   T12] ------------[ cut here ]------------
| [   24.612772][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   24.613023][   T12] Modules linked in:
| [   24.613382][   T12] Tainted: [W]=WARN
[   24.613472][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.613624][   T12] Workqueue: netns cleanup_net
[   24.613750][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.613912][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.614337][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   24.614492][   T12] RAX: 00000000ffffffa6 RBX: ff11000009b71540 RCX: 1ff4000000018ed5
[   24.614670][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009b715fc
[   24.614865][   T12] RBP: ff1100000feb1000 R08: 1fe220000136e2c1 R09: ff11000001aed1d0
[   24.615053][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.615228][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.615413][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   24.615627][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.615776][   T12] CR2: 00007fcabab77430 CR3: 000000000f2de006 CR4: 0000000000771ef0
[   24.615962][   T12] PKRU: 55555554
[   24.616050][   T12] Call Trace:
[   24.616142][   T12]  <TASK>
[   24.616205][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   24.616357][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   24.616507][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   24.616628][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   24.616751][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   24.616877][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   24.616995][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   24.617118][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   24.617239][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   24.617357][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.617479][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   24.617597][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.617714][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   24.617846][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.617965][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.618086][   T12]  process_one_work (kernel/workqueue.c:3314)
[   24.618207][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.618324][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.618445][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.618568][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.618691][   T12]  kthread (kernel/kthread.c:436)
[   24.618782][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.618947][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.619064][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.619184][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   24.619331][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.619448][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.619567][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.625371][  T284] ------------[ cut here ]------------
| [   24.625517][  T284] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/284
| [   24.625748][  T284] Modules linked in:
| [   24.626138][  T284] Tainted: [W]=WARN
[   24.626239][  T284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.626403][  T284] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.626573][  T284] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.627049][  T284] RSP: 0018:ffa00000008e7a78 EFLAGS: 00010286
[   24.627216][  T284] RAX: 00000000ffffffa6 RBX: ff11000009b64ac0 RCX: 1ff400000011cf15
[   24.627413][  T284] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009b64b7c
[   24.627611][  T284] RBP: ff11000005f39000 R08: 1fe220000136c971 R09: ff1100000fba2e80
[   24.627810][  T284] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   24.628018][  T284] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005f39000
[   24.628218][  T284] FS:  00007fcaba970840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   24.628452][  T284] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.628620][  T284] CR2: 0000563f9f964d5c CR3: 000000000f2de002 CR4: 0000000000771ef0
[   24.628826][  T284] PKRU: 55555554
[   24.628963][  T284] Call Trace:
[   24.629093][  T284]  <TASK>
[   24.629184][  T284]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.629357][  T284]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.629532][  T284]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.629668][  T284]  register_netdevice (net/core/dev.c:11488)
[   24.629856][  T284]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.630073][  T284]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.630253][  T284]  register_netdev (net/core/dev.c:11552)
[   24.630430][  T284]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   24.630578][  T284]  ops_init (net/core/net_namespace.c:137)
[   24.630679][  T284]  setup_net (net/core/net_namespace.c:446)
[   24.630781][  T284]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.630925][  T284]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.631058][  T284]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.631214][  T284]  copy_net_ns (net/core/net_namespace.c:579)
[   24.631407][  T284]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.631607][  T284]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.631805][  T284]  ksys_unshare (kernel/fork.c:3243)
[   24.632025][  T284]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.632206][  T284]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.632340][  T284]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.632474][  T284]  ? __ia32_sys_open (fs/open.c:1374)
[   24.632608][  T284]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.632740][  T284]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.632884][  T284]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.633016][  T284]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.633147][  T284]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.633279][  T284]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.633444][  T284] RIP: 0033:0x7fcabac32bcb
[   24.633604][  T284] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.634164][  T284] RSP: 002b:00007ffffe15b888 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.634363][  T284] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcabac32bcb
[   24.634561][  T284] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.634758][  T284] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.634979][  T284] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffffe15dab0
[   24.635248][  T284] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffffe15f875
| [   24.669158][  T285] ------------[ cut here ]------------
| [   24.669306][  T285] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/285
| [   24.669538][  T285] Modules linked in:
| [   24.669916][  T285] Tainted: [W]=WARN
[   24.670020][  T285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.670182][  T285] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.670352][  T285] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.670823][  T285] RSP: 0018:ffa00000008e7a80 EFLAGS: 00010286
[   24.670992][  T285] RAX: 00000000ffffffa6 RBX: ff1100000da32040 RCX: 1ff400000011cf16
[   24.671185][  T285] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000da320fc
[   24.671382][  T285] RBP: ff1100000a4ec000 R08: 1fe2200001b46421 R09: ff1100000f80ae80
[   24.671575][  T285] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   24.671769][  T285] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a4ec000
[   24.671977][  T285] FS:  00007f0624c4a840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.672208][  T285] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.672371][  T285] CR2: 00007f0624e4bc20 CR3: 00000000135d5006 CR4: 0000000000771ef0
[   24.672566][  T285] PKRU: 55555554
[   24.672664][  T285] Call Trace:
[   24.672762][  T285]  <TASK>
[   24.672839][  T285]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.672971][  T285]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.673103][  T285]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.673201][  T285]  register_netdevice (net/core/dev.c:11488)
[   24.673333][  T285]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.673497][  T285]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.673629][  T285]  register_netdev (net/core/dev.c:11552)
[   24.673759][  T285]  loopback_net_init (drivers/net/loopback.c:218)
[   24.673904][  T285]  ops_init (net/core/net_namespace.c:137)
[   24.674006][  T285]  setup_net (net/core/net_namespace.c:446)
[   24.674105][  T285]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.674235][  T285]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.674365][  T285]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.674498][  T285]  copy_net_ns (net/core/net_namespace.c:579)
[   24.674630][  T285]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.674764][  T285]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.674970][  T285]  ksys_unshare (kernel/fork.c:3243)
[   24.675100][  T285]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.675231][  T285]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.675362][  T285]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.675497][  T285]  ? __ia32_sys_open (fs/open.c:1374)
[   24.675629][  T285]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.675763][  T285]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.675968][  T285]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.676175][  T285]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.676305][  T285]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.676434][  T285]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.676596][  T285] RIP: 0033:0x7f0624f0cbcb
[   24.676734][  T285] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.677267][  T285] RSP: 002b:00007ffcca4b2518 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.677464][  T285] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0624f0cbcb
[   24.677657][  T285] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.677915][  T285] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.678110][  T285] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcca4b4740
[   24.678305][  T285] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcca4b6875
| [   24.682518][  T285] ------------[ cut here ]------------
| [   24.682652][  T285] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/285
| [   24.683002][  T285] Modules linked in:
| [   24.683367][  T285] Tainted: [W]=WARN
[   24.683468][  T285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.683631][  T285] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.683800][  T285] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.684275][  T285] RSP: 0018:ffa00000008e7918 EFLAGS: 00010286
[   24.684438][  T285] RAX: 00000000ffffffa6 RBX: ff1100000bcc6c80 RCX: 1ff400000011cee9
[   24.684629][  T285] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bcc6d3c
[   24.684828][  T285] RBP: ff11000005289000 R08: 1fe2200001798da9 R09: ff1100000f80ae80
[   24.685028][  T285] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   24.685222][  T285] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005289000
[   24.685416][  T285] FS:  00007f0624c4a840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.685643][  T285] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.685805][  T285] CR2: 00007f0624e4bc20 CR3: 00000000135d5006 CR4: 0000000000771ef0
[   24.686013][  T285] PKRU: 55555554
[   24.686110][  T285] Call Trace:
[   24.686207][  T285]  <TASK>
[   24.686274][  T285]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.686404][  T285]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.686533][  T285]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.686633][  T285]  register_netdevice (net/core/dev.c:11488)
[   24.686765][  T285]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.686940][  T285]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.687070][  T285]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   24.687200][  T285]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   24.687330][  T285]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   24.687463][  T285]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   24.687596][  T285]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   24.687727][  T285]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   24.687872][  T285]  ops_init (net/core/net_namespace.c:137)
[   24.687972][  T285]  setup_net (net/core/net_namespace.c:446)
[   24.688071][  T285]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.688201][  T285]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.688331][  T285]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.688463][  T285]  copy_net_ns (net/core/net_namespace.c:579)
[   24.688594][  T285]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.688728][  T285]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.688869][  T285]  ksys_unshare (kernel/fork.c:3243)
[   24.688999][  T285]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.689127][  T285]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.689256][  T285]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.689388][  T285]  ? __ia32_sys_open (fs/open.c:1374)
[   24.689520][  T285]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.689649][  T285]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.689779][  T285]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.689924][  T285]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.690055][  T285]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.690184][  T285]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.690345][  T285] RIP: 0033:0x7f0624f0cbcb
[   24.690480][  T285] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.690955][  T285] RSP: 002b:00007ffcca4b2518 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.691152][  T285] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0624f0cbcb
[   24.691345][  T285] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.691540][  T285] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.691732][  T285] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcca4b4740
[   24.691933][  T285] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcca4b6875
| [   24.695729][  T285] ------------[ cut here ]------------
| [   24.695881][  T285] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/285
| [   24.696108][  T285] Modules linked in:
| [   24.696476][  T285] Tainted: [W]=WARN
[   24.696576][  T285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.696740][  T285] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.696922][  T285] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.697390][  T285] RSP: 0018:ffa00000008e78f8 EFLAGS: 00010286
[   24.697557][  T285] RAX: 00000000ffffffa6 RBX: ff1100000bcc7e00 RCX: 1ff400000011cee5
[   24.697753][  T285] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bcc7ebc
[   24.697961][  T285] RBP: ff11000008309000 R08: 1fe2200001798fd9 R09: ff1100000f80ae80
[   24.698161][  T285] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   24.698357][  T285] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008309000
[   24.698555][  T285] FS:  00007f0624c4a840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.698786][  T285] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.698964][  T285] CR2: 00007f0624e4bc20 CR3: 00000000135d5006 CR4: 0000000000771ef0
[   24.699163][  T285] PKRU: 55555554
[   24.699261][  T285] Call Trace:
[   24.699358][  T285]  <TASK>
[   24.699426][  T285]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.699563][  T285]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.699694][  T285]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.699794][  T285]  register_netdevice (net/core/dev.c:11488)
[   24.699943][  T285]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.700109][  T285]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.700243][  T285]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   24.700375][  T285]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   24.700507][  T285]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   24.700640][  T285]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   24.700773][  T285]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   24.700918][  T285]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   24.701052][  T285]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.701185][  T285]  vti_init_net (net/ipv4/ip_vti.c:517)
[   24.701317][  T285]  ops_init (net/core/net_namespace.c:137)
[   24.701420][  T285]  setup_net (net/core/net_namespace.c:446)
[   24.701524][  T285]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.701657][  T285]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.701791][  T285]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.701938][  T285]  copy_net_ns (net/core/net_namespace.c:579)
[   24.702071][  T285]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.702205][  T285]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.702340][  T285]  ksys_unshare (kernel/fork.c:3243)
[   24.702472][  T285]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.702606][  T285]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.702738][  T285]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.702881][  T285]  ? __ia32_sys_open (fs/open.c:1374)
[   24.703016][  T285]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.703148][  T285]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.703280][  T285]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.703414][  T285]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.703546][  T285]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.703678][  T285]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.703854][  T285] RIP: 0033:0x7f0624f0cbcb
[   24.703996][  T285] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.704466][  T285] RSP: 002b:00007ffcca4b2518 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.704663][  T285] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0624f0cbcb
[   24.704871][  T285] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.705070][  T285] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.705265][  T285] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcca4b4740
[   24.705463][  T285] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcca4b6875
| [   24.710512][  T285] ------------[ cut here ]------------
| [   24.710649][  T285] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/285
| [   24.710893][  T285] Modules linked in:
| [   24.711257][  T285] Tainted: [W]=WARN
[   24.711356][  T285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.711525][  T285] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.711697][  T285] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.712173][  T285] RSP: 0018:ffa00000008e7a78 EFLAGS: 00010286
[   24.712339][  T285] RAX: 00000000ffffffa6 RBX: ff1100000b3a2e40 RCX: 1ff400000011cf15
[   24.712532][  T285] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b3a2efc
[   24.712730][  T285] RBP: ff11000008fbc000 R08: 1fe22000016745e1 R09: ff1100000f80ae80
[   24.712937][  T285] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   24.713133][  T285] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008fbc000
[   24.713330][  T285] FS:  00007f0624c4a840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.713561][  T285] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.713725][  T285] CR2: 00007f0624e4bc20 CR3: 00000000135d5006 CR4: 0000000000771ef0
[   24.713932][  T285] PKRU: 55555554
[   24.714030][  T285] Call Trace:
[   24.714126][  T285]  <TASK>
[   24.714192][  T285]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.714323][  T285]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.714458][  T285]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.714559][  T285]  register_netdevice (net/core/dev.c:11488)
[   24.714691][  T285]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.714862][  T285]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.714997][  T285]  register_netdev (net/core/dev.c:11552)
[   24.715128][  T285]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   24.715262][  T285]  ops_init (net/core/net_namespace.c:137)
[   24.715364][  T285]  setup_net (net/core/net_namespace.c:446)
[   24.715464][  T285]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.715593][  T285]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.715724][  T285]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.715868][  T285]  copy_net_ns (net/core/net_namespace.c:579)
[   24.716000][  T285]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.716133][  T285]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.716266][  T285]  ksys_unshare (kernel/fork.c:3243)
[   24.716397][  T285]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.716526][  T285]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.716657][  T285]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.716791][  T285]  ? __ia32_sys_open (fs/open.c:1374)
[   24.716989][  T285]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.717119][  T285]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.717252][  T285]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.717382][  T285]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.717513][  T285]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.717646][  T285]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.717808][  T285] RIP: 0033:0x7f0624f0cbcb
[   24.718008][  T285] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.718475][  T285] RSP: 002b:00007ffcca4b2518 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.718670][  T285] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0624f0cbcb
[   24.718933][  T285] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.719184][  T285] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.719379][  T285] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcca4b4740
[   24.719574][  T285] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcca4b6875
| [   24.728494][  T285] ------------[ cut here ]------------
| [   24.728640][  T285] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/285
| [   24.728890][  T285] Modules linked in:
| [   24.729260][  T285] Tainted: [W]=WARN
[   24.729359][  T285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.729526][  T285] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.729696][  T285] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.730172][  T285] RSP: 0018:ffa00000008e7a68 EFLAGS: 00010286
[   24.730337][  T285] RAX: 00000000ffffffa6 RBX: ff1100000c480580 RCX: 1ff400000011cf13
[   24.730533][  T285] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c48063c
[   24.730728][  T285] RBP: ff1100000f0c1000 R08: 1fe22000018900c9 R09: ff1100000f80ae80
[   24.730934][  T285] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.731131][  T285] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f0c1000
[   24.731343][  T285] FS:  00007f0624c4a840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   24.731571][  T285] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.731733][  T285] CR2: 00007fcabab77430 CR3: 00000000135d5002 CR4: 0000000000771ef0
[   24.731944][  T285] PKRU: 55555554
[   24.732042][  T285] Call Trace:
[   24.732139][  T285]  <TASK>
[   24.732207][  T285]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.732337][  T285]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.732467][  T285]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.732566][  T285]  register_netdevice (net/core/dev.c:11488)
[   24.732699][  T285]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.732877][  T285]  register_netdev (net/core/dev.c:11552)
[   24.733009][  T285]  sit_init_net (net/ipv6/sit.c:1860)
[   24.733140][  T285]  ops_init (net/core/net_namespace.c:137)
[   24.733240][  T285]  setup_net (net/core/net_namespace.c:446)
[   24.733338][  T285]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.733468][  T285]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.733598][  T285]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.733732][  T285]  copy_net_ns (net/core/net_namespace.c:579)
[   24.733873][  T285]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.734006][  T285]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.734138][  T285]  ksys_unshare (kernel/fork.c:3243)
[   24.734266][  T285]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.734414][  T285]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.734604][  T285]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.734769][  T285]  ? __ia32_sys_open (fs/open.c:1374)
[   24.734915][  T285]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.735046][  T285]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.735175][  T285]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.735304][  T285]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.735434][  T285]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.735565][  T285]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.735726][  T285] RIP: 0033:0x7f0624f0cbcb
[   24.735877][  T285] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.736340][  T285] RSP: 002b:00007ffcca4b2518 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.736536][  T285] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0624f0cbcb
[   24.736732][  T285] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.736936][  T285] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.737130][  T285] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcca4b4740
[   24.737324][  T285] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcca4b6875
| [   24.742205][  T285] ------------[ cut here ]------------
| [   24.742343][  T285] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/285
| [   24.742569][  T285] Modules linked in:
| [   24.742949][  T285] Tainted: [W]=WARN
[   24.743047][  T285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.743210][  T285] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.743379][  T285] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.743855][  T285] RSP: 0018:ffa00000008e7a78 EFLAGS: 00010286
[   24.744019][  T285] RAX: 00000000ffffffa6 RBX: ff1100000b37fe00 RCX: 1ff400000011cf15
[   24.744212][  T285] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b37febc
[   24.744406][  T285] RBP: ff1100000f14c000 R08: 1fe220000166ffd9 R09: ff1100000f80ae80
[   24.744600][  T285] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.744794][  T285] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f14c000
[   24.744996][  T285] FS:  00007f0624c4a840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   24.745226][  T285] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.745390][  T285] CR2: 00007fcabab77430 CR3: 00000000135d5002 CR4: 0000000000771ef0
[   24.745587][  T285] PKRU: 55555554
[   24.745685][  T285] Call Trace:
[   24.745781][  T285]  <TASK>
[   24.745859][  T285]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.745989][  T285]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.746122][  T285]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.746222][  T285]  register_netdevice (net/core/dev.c:11488)
[   24.746355][  T285]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   24.746519][  T285]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.746654][  T285]  register_netdev (net/core/dev.c:11552)
[   24.746784][  T285]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   24.746927][  T285]  ops_init (net/core/net_namespace.c:137)
[   24.747027][  T285]  setup_net (net/core/net_namespace.c:446)
[   24.747128][  T285]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   24.747258][  T285]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   24.747389][  T285]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   24.747522][  T285]  copy_net_ns (net/core/net_namespace.c:579)
[   24.747656][  T285]  create_new_namespaces (kernel/nsproxy.c:132)
[   24.747789][  T285]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   24.747931][  T285]  ksys_unshare (kernel/fork.c:3243)
[   24.748065][  T285]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.748196][  T285]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   24.748325][  T285]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   24.748457][  T285]  ? __ia32_sys_open (fs/open.c:1374)
[   24.748591][  T285]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   24.748720][  T285]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   24.748861][  T285]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.748996][  T285]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.749126][  T285]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.749258][  T285]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.749421][  T285] RIP: 0033:0x7f0624f0cbcb
[   24.749559][  T285] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   24.750032][  T285] RSP: 002b:00007ffcca4b2518 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   24.750228][  T285] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0624f0cbcb
[   24.750421][  T285] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   24.750615][  T285] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   24.750810][  T285] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcca4b4740
[   24.751014][  T285] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcca4b6875
| [   24.858540][  T288] ------------[ cut here ]------------
| [   24.858708][  T288] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/288
| [   24.858958][  T288] Modules linked in:
| [   24.859342][  T288] Tainted: [W]=WARN
[   24.859445][  T288] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.859614][  T288] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.859794][  T288] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.860284][  T288] RSP: 0018:ffa0000000c96e30 EFLAGS: 00010286
[   24.860456][  T288] RAX: 00000000ffffffa6 RBX: ff1100000b87d000 RCX: 1ff4000000192d8c
[   24.860656][  T288] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b87d0bc
[   24.860865][  T288] RBP: ff1100000f111000 R08: 1fe220000170fa19 R09: ff1100000f720b80
[   24.861067][  T288] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.861268][  T288] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f144b10
[   24.861470][  T288] FS:  00007f150eff5840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   24.861706][  T288] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.861883][  T288] CR2: 000000000042ebe0 CR3: 000000000f81f004 CR4: 0000000000771ef0
[   24.862085][  T288] PKRU: 55555554
[   24.862189][  T288] Call Trace:
[   24.862290][  T288]  <TASK>
[   24.862360][  T288]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.862499][  T288]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.862601][  T288]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   24.862770][  T288]  __dev_notify_flags (net/core/dev.c:9787)
[   24.862915][  T288]  ? netif_change_name (net/core/dev.c:1495)
[   24.863049][  T288]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   24.863183][  T288]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   24.863314][  T288]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   24.863451][  T288]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   24.863587][  T288]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.863723][  T288]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   24.863868][  T288]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   24.864004][  T288]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.864139][  T288]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   24.864276][  T288]  veth_newlink (drivers/net/veth.c:1871)
[   24.864411][  T288]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   24.864543][  T288]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.864678][  T288]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.864812][  T288]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.864971][  T288]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   24.865106][  T288]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   24.865242][  T288]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   24.865378][  T288]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.865514][  T288]  ? rtnl_create_link (net/core/rtnetlink.c:3733)
[   24.865650][  T288]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   24.865785][  T288]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   24.865931][  T288]  ? __dev_get_by_name (net/core/dev.c:883)
[   24.866065][  T288]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   24.866205][  T288]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   24.866343][  T288]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   24.866481][  T288]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.866613][  T288]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.866746][  T288]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.866893][  T288]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   24.867030][  T288]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.867180][  T288]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.867317][  T288]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.867452][  T288]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   24.867621][  T288]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.867755][  T288]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.867900][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.868036][  T288]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.868171][  T288]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.868307][  T288]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   24.868440][  T288]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.868592][  T288]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.868729][  T288]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   24.868872][  T288]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   24.869008][  T288]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.869147][  T288]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.869283][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.869421][  T288]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   24.869559][  T288]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   24.869695][  T288]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   24.869841][  T288]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   24.869977][  T288]  ? copy_msghdr_from_user (net/socket.c:2635)
[   24.870115][  T288]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   24.870285][  T288]  ? move_addr_to_kernel (net/socket.c:258)
[   24.870426][  T288]  ___sys_sendmsg (net/socket.c:2752)
[   24.870562][  T288]  ? copy_msghdr_from_user (net/socket.c:2603)
[   24.870703][  T288]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.870885][  T288]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   24.871021][  T288]  __sys_sendmsg (net/socket.c:2784)
[   24.871158][  T288]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   24.871299][  T288]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   24.871435][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.871570][  T288]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.871707][  T288]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.871850][  T288]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.871985][  T288]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.872152][  T288] RIP: 0033:0x7f150f22f08e
[   24.872296][  T288] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   24.872778][  T288] RSP: 002b:00007ffce3bf8530 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.872994][  T288] RAX: ffffffffffffffda RBX: 00007ffce3bf8ce8 RCX: 00007f150f22f08e
[   24.873200][  T288] RDX: 0000000000000000 RSI: 00007ffce3bf85e0 RDI: 0000000000000005
[   24.873401][  T288] RBP: 00007ffce3bf8540 R08: 0000000000000000 R09: 0000000000000000
[   24.873602][  T288] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c8
[   24.873806][  T288] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffce3bf8ca0
| [   24.886334][  T288] ------------[ cut here ]------------
| [   24.886490][  T288] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/288
| [   24.886726][  T288] Modules linked in:
| [   24.887475][  T288] Tainted: [W]=WARN
[   24.887576][  T288] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.887760][  T288] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.887943][  T288] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.888418][  T288] RSP: 0018:ffa0000000c971b0 EFLAGS: 00010286
[   24.888587][  T288] RAX: 00000000ffffffa6 RBX: ff1100000c481700 RCX: 1ff4000000192dfc
[   24.888782][  T288] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4817bc
[   24.888988][  T288] RBP: ff1100000956c000 R08: 1fe22000018902f9 R09: ff1100000f720b80
[   24.889190][  T288] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   24.889387][  T288] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa8c03b20
[   24.889587][  T288] FS:  00007f150eff5840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   24.889822][  T288] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.890046][  T288] CR2: 000000000042ebe0 CR3: 000000000f81f004 CR4: 0000000000771ef0
[   24.890244][  T288] PKRU: 55555554
[   24.890344][  T288] Call Trace:
[   24.890446][  T288]  <TASK>
[   24.890517][  T288]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.890652][  T288]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.890753][  T288]  __dev_notify_flags (net/core/dev.c:9787)
[   24.890901][  T288]  ? netif_change_name (net/core/dev.c:1495)
[   24.891036][  T288]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   24.891170][  T288]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   24.891304][  T288]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   24.891439][  T288]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   24.891574][  T288]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   24.891708][  T288]  ? __dev_get_by_name (net/core/dev.c:883)
[   24.891849][  T288]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   24.891990][  T288]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   24.892127][  T288]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   24.892261][  T288]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.892396][  T288]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.892530][  T288]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.892661][  T288]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   24.892793][  T288]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.892941][  T288]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.893078][  T288]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.893213][  T288]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   24.893346][  T288]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.893478][  T288]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.893609][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.893742][  T288]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.893881][  T288]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.894019][  T288]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   24.894152][  T288]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.894285][  T288]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.894421][  T288]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   24.894555][  T288]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   24.894691][  T288]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.894829][  T288]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.894970][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.895103][  T288]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   24.895238][  T288]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   24.895370][  T288]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   24.895506][  T288]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   24.895639][  T288]  ? copy_msghdr_from_user (net/socket.c:2635)
[   24.895773][  T288]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   24.895950][  T288]  ? move_addr_to_kernel (net/socket.c:258)
[   24.896106][  T288]  ___sys_sendmsg (net/socket.c:2752)
[   24.896240][  T288]  ? copy_msghdr_from_user (net/socket.c:2603)
[   24.896379][  T288]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.896553][  T288]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   24.896688][  T288]  __sys_sendmsg (net/socket.c:2784)
[   24.896827][  T288]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   24.896969][  T288]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   24.897106][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.897241][  T288]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.897376][  T288]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.897508][  T288]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.897640][  T288]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.897807][  T288] RIP: 0033:0x7f150f22f08e
[   24.897960][  T288] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   24.898439][  T288] RSP: 002b:00007ffce3bf8530 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.898642][  T288] RAX: ffffffffffffffda RBX: 00007ffce3bf8ce8 RCX: 00007f150f22f08e
[   24.898848][  T288] RDX: 0000000000000000 RSI: 00007ffce3bf85e0 RDI: 0000000000000005
[   24.899053][  T288] RBP: 00007ffce3bf8540 R08: 0000000000000000 R09: 0000000000000000
[   24.899255][  T288] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c8
[   24.899455][  T288] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffce3bf8ca0
| [   24.924514][  T289] ------------[ cut here ]------------
| [   24.924670][  T289] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/289
| [   24.924917][  T289] Modules linked in:
| [   24.925293][  T289] Tainted: [W]=WARN
[   24.925393][  T289] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.925562][  T289] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.925735][  T289] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.926209][  T289] RSP: 0018:ffa0000000bd7020 EFLAGS: 00010286
[   24.926376][  T289] RAX: 00000000ffffffa6 RBX: ff1100000b3a3c40 RCX: 1ff400000017adca
[   24.926571][  T289] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b3a3cfc
[   24.926765][  T289] RBP: ff1100000956c000 R08: 1fe22000016747a1 R09: ff1100000f42d158
[   24.926978][  T289] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   24.927172][  T289] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   24.927370][  T289] FS:  00007faf8f3ff840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.927597][  T289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.927761][  T289] CR2: 000000001f758988 CR3: 0000000009b42006 CR4: 0000000000771ef0
[   24.927966][  T289] PKRU: 55555554
[   24.928065][  T289] Call Trace:
[   24.928167][  T289]  <TASK>
[   24.928236][  T289]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.928369][  T289]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.928470][  T289]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   24.928602][  T289]  __dev_notify_flags (net/core/dev.c:9787)
[   24.928734][  T289]  ? netif_change_name (net/core/dev.c:1495)
[   24.928876][  T289]  ? __dev_change_flags (net/core/dev.c:9752)
[   24.929007][  T289]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   24.929140][  T289]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.929271][  T289]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   24.929406][  T289]  netif_change_flags (net/core/dev.c:9820)
[   24.929537][  T289]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   24.929670][  T289]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   24.929804][  T289]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   24.930037][  T289]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   24.930202][  T289]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.930332][  T289]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.930463][  T289]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.930593][  T289]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.930725][  T289]  ? __kernel_text_address (kernel/extable.c:79)
[   24.930955][  T289]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.931154][  T289]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.931286][  T289]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   24.931415][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.931546][  T289]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.931677][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.931807][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.932035][  T289]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   24.932171][  T289]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   24.932306][  T289]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   24.932437][  T289]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   24.932568][  T289]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   24.932701][  T289]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   24.932913][  T289]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   24.933046][  T289]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.933175][  T289]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.933308][  T289]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.933437][  T289]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   24.933565][  T289]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.933697][  T289]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.933831][  T289]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.934025][  T289]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.934154][  T289]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.934287][  T289]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.934418][  T289]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   24.934550][  T289]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.934679][  T289]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.934902][  T289]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.935035][  T289]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.935165][  T289]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.935295][  T289]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   24.935426][  T289]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.935561][  T289]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.935697][  T289]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   24.935888][  T289]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   24.936021][  T289]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.936154][  T289]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.936285][  T289]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.936416][  T289]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   24.936550][  T289]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   24.936684][  T289]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   24.936824][  T289]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   24.937013][  T289]  ? copy_msghdr_from_user (net/socket.c:2635)
[   24.937143][  T289]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   24.937302][  T289]  ? move_addr_to_kernel (net/socket.c:258)
[   24.937432][  T289]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.937566][  T289]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.937698][  T289]  ___sys_sendmsg (net/socket.c:2752)
[   24.937851][  T289]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   24.938014][  T289]  ? copy_msghdr_from_user (net/socket.c:2603)
[   24.938157][  T289]  __sys_sendmsg (net/socket.c:2784)
[   24.938287][  T289]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   24.938415][  T289]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   24.938581][  T289]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   24.938711][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.938850][  T289]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.938981][  T289]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.939112][  T289]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.939241][  T289]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.939404][  T289] RIP: 0033:0x7faf8f63908e
[   24.939542][  T289] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   24.940047][  T289] RSP: 002b:00007ffc56829420 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.940246][  T289] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007faf8f63908e
[   24.940443][  T289] RDX: 0000000000000000 RSI: 00007ffc568294d0 RDI: 0000000000000005
[   24.940642][  T289] RBP: 00007ffc56829430 R08: 0000000000000000 R09: 0000000000000000
[   24.940848][  T289] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c8
[   24.941044][  T289] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc56829ba0
| [   24.975741][  T290] ------------[ cut here ]------------
| [   24.975914][  T290] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/290
| [   24.976148][  T290] Modules linked in:
| [   24.976528][  T290] Tainted: [W]=WARN
[   24.976630][  T290] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.976796][  T290] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.976980][  T290] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.977446][  T290] RSP: 0018:ffa0000000ca7020 EFLAGS: 00010286
[   24.977612][  T290] RAX: 00000000ffffffa6 RBX: ff1100000b87d700 RCX: 1ff4000000194dca
[   24.977807][  T290] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b87d7bc
[   24.978008][  T290] RBP: ff1100000f111000 R08: 1fe220000170faf9 R09: ff1100000f7ad158
[   24.978205][  T290] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   24.978407][  T290] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   24.978613][  T290] FS:  00007f726e9b5840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   24.978852][  T290] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.979018][  T290] CR2: 000000000f306988 CR3: 000000000f4f7006 CR4: 0000000000771ef0
[   24.979218][  T290] PKRU: 55555554
[   24.979315][  T290] Call Trace:
[   24.979412][  T290]  <TASK>
[   24.979482][  T290]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.979616][  T290]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.979715][  T290]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   24.979854][  T290]  __dev_notify_flags (net/core/dev.c:9787)
[   24.979985][  T290]  ? netif_change_name (net/core/dev.c:1495)
[   24.980114][  T290]  ? __dev_change_flags (net/core/dev.c:9752)
[   24.980246][  T290]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   24.980376][  T290]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.980506][  T290]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   24.980637][  T290]  netif_change_flags (net/core/dev.c:9820)
[   24.980768][  T290]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   24.980935][  T290]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   24.981069][  T290]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   24.981199][  T290]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   24.981361][  T290]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.981491][  T290]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.981621][  T290]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.981752][  T290]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.981893][  T290]  ? __kernel_text_address (kernel/extable.c:79)
[   24.982027][  T290]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.982157][  T290]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.982288][  T290]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   24.982418][  T290]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.982547][  T290]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   24.982675][  T290]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.982804][  T290]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.982945][  T290]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   24.983078][  T290]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   24.983210][  T290]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   24.983340][  T290]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   24.983472][  T290]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   24.983605][  T290]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   24.983738][  T290]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   24.983880][  T290]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.984011][  T290]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.984140][  T290]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.984270][  T290]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   24.984398][  T290]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.984533][  T290]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.984664][  T290]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.984793][  T290]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.984932][  T290]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   24.985063][  T290]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   24.985194][  T290]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   24.985324][  T290]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.985454][  T290]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.985583][  T290]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.985713][  T290]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.985856][  T290]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.985986][  T290]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   24.986117][  T290]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.986248][  T290]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.986382][  T290]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   24.986512][  T290]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   24.986646][  T290]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.986778][  T290]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.986921][  T290]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.987054][  T290]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   24.987186][  T290]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   24.987319][  T290]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   24.987452][  T290]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   24.987583][  T290]  ? copy_msghdr_from_user (net/socket.c:2635)
[   24.987713][  T290]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   24.987885][  T290]  ? move_addr_to_kernel (net/socket.c:258)
[   24.988018][  T290]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.988148][  T290]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   24.988282][  T290]  ___sys_sendmsg (net/socket.c:2752)
[   24.988412][  T290]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   24.988573][  T290]  ? copy_msghdr_from_user (net/socket.c:2603)
[   24.988715][  T290]  __sys_sendmsg (net/socket.c:2784)
[   24.988858][  T290]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   24.988990][  T290]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   24.989159][  T290]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   24.989292][  T290]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   24.989424][  T290]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.989559][  T290]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   24.989692][  T290]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.989827][  T290]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.989995][  T290] RIP: 0033:0x7f726ebef08e
[   24.990138][  T290] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   24.990606][  T290] RSP: 002b:00007ffebc9e7880 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.990804][  T290] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f726ebef08e
[   24.991010][  T290] RDX: 0000000000000000 RSI: 00007ffebc9e7930 RDI: 0000000000000005
[   24.991204][  T290] RBP: 00007ffebc9e7890 R08: 0000000000000000 R09: 0000000000000000
[   24.991403][  T290] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c8
[   24.991598][  T290] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffebc9e8000
| [   24.993637][   T94] ------------[ cut here ]------------
| [   24.993771][   T94] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/94
| [   24.994020][   T94] Modules linked in:
| [   24.994409][   T94] Tainted: [W]=WARN
[   24.994499][   T94] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.994651][   T94] Workqueue: events_unbound linkwatch_event
[   24.994807][   T94] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   24.994981][   T94] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   24.995410][   T94] RSP: 0018:ffa00000004b79e0 EFLAGS: 00010286
[   24.995562][   T94] RAX: 00000000ffffffa6 RBX: ff1100000b87c040 RCX: 1ff4000000096f02
[   24.995743][   T94] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b87c0fc
[   24.995935][   T94] RBP: ff1100000956c000 R08: 1fe220000170f821 R09: ff1100000dda51a8
[   24.996114][   T94] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   24.996295][   T94] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   24.996479][   T94] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   24.996698][   T94] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.996862][   T94] CR2: 00007faf8f4cc574 CR3: 000000003174d004 CR4: 0000000000771ef0
[   24.997044][   T94] PKRU: 55555554
[   24.997140][   T94] Call Trace:
[   24.997231][   T94]  <TASK>
[   24.997295][   T94]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   24.997418][   T94]  ? notifier_call_chain (kernel/notifier.c:85)
[   24.997548][   T94]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   24.997640][   T94]  netif_state_change (net/core/dev.c:1605)
[   24.997766][   T94]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   24.997930][   T94]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   24.998051][   T94]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   24.998177][   T94]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.998301][   T94]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   24.998423][   T94]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   24.998550][   T94]  process_one_work (kernel/workqueue.c:3314)
[   24.998675][   T94]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   24.998795][   T94]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   24.998931][   T94]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   24.999058][   T94]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.999178][   T94]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   24.999302][   T94]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   24.999422][   T94]  kthread (kernel/kthread.c:436)
[   24.999513][   T94]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.999668][   T94]  ? kthread_affine_node (kernel/kthread.c:378)
[   24.999789][   T94]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.999920][   T94]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   25.000071][   T94]  ? trace_x86_fpu_regs_deactivated (./arch/x86/include/asm/trace/fpu.h:52 (discriminator 22))
[   25.000222][   T94]  ? save_fpregs_to_fpstate (arch/x86/kernel/fpu/core.c:144)
[   25.000342][   T94]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   25.000466][   T94]  ? kthread_affine_node (kernel/kthread.c:378)
[   25.000587][   T94]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   25.023111][  T291] ------------[ cut here ]------------
| [   25.023310][  T291] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/291
| [   25.023615][  T291] Modules linked in:
| [   25.024132][  T291] Tainted: [W]=WARN
[   25.024279][  T291] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.024495][  T291] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.024732][  T291] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.025284][  T291] RSP: 0018:ffa0000000cb7050 EFLAGS: 00010286
[   25.025499][  T291] RAX: 00000000ffffffa6 RBX: ff1100000583f700 RCX: 1ff4000000196dd0
[   25.025755][  T291] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000583f7bc
[   25.026017][  T291] RBP: ff1100000956c000 R08: 1fe2200000b07ef9 R09: ff1100000f7a8b80
[   25.026261][  T291] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   25.026505][  T291] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   25.026756][  T291] FS:  00007f5d32588840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   25.027055][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.027267][  T291] CR2: 00007f5d32910900 CR3: 000000000f4b6001 CR4: 0000000000771ef0
[   25.027512][  T291] PKRU: 55555554
[   25.027656][  T291] Call Trace:
[   25.027801][  T291]  <TASK>
[   25.027936][  T291]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.028120][  T291]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   25.028299][  T291]  notifier_call_chain (kernel/notifier.c:85)
[   25.028479][  T291]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   25.028659][  T291]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.028860][  T291]  ? netif_set_group (net/core/dev.c:9947)
[   25.029042][  T291]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   25.029256][  T291]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   25.029442][  T291]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   25.029624][  T291]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   25.029803][  T291]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   25.030659][  T291]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.030859][  T291]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   25.031040][  T291]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   25.031218][  T291]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.031400][  T291]  ? __kernel_text_address (kernel/extable.c:79)
[   25.031579][  T291]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   25.031759][  T291]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.031978][  T291]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   25.032159][  T291]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.032339][  T291]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   25.032519][  T291]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.032702][  T291]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.032902][  T291]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   25.033081][  T291]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   25.033259][  T291]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   25.033440][  T291]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   25.033625][  T291]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   25.033806][  T291]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   25.034006][  T291]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.034186][  T291]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.034366][  T291]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   25.034545][  T291]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   25.034723][  T291]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.034929][  T291]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.035108][  T291]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.035288][  T291]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   25.035468][  T291]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.035651][  T291]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   25.035877][  T291]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   25.036057][  T291]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   25.036237][  T291]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.036416][  T291]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   25.036599][  T291]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.036779][  T291]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.036980][  T291]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   25.037162][  T291]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.037343][  T291]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.037528][  T291]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   25.037705][  T291]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   25.037907][  T291]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.038089][  T291]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.038269][  T291]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   25.038453][  T291]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   25.038633][  T291]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   25.038823][  T291]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   25.039019][  T291]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   25.039200][  T291]  ? copy_msghdr_from_user (net/socket.c:2635)
[   25.039379][  T291]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   25.039592][  T291]  ? move_addr_to_kernel (net/socket.c:258)
[   25.039775][  T291]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.039976][  T291]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   25.040156][  T291]  ___sys_sendmsg (net/socket.c:2752)
[   25.040334][  T291]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   25.040544][  T291]  ? copy_msghdr_from_user (net/socket.c:2603)
[   25.040735][  T291]  __sys_sendmsg (net/socket.c:2784)
[   25.040935][  T291]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   25.041118][  T291]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   25.041331][  T291]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   25.041509][  T291]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.041688][  T291]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   25.041889][  T291]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   25.042067][  T291]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   25.042246][  T291]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.042455][  T291] RIP: 0033:0x7f5d327c208e
[   25.042644][  T291] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   25.043174][  T291] RSP: 002b:00007ffc1a2f3810 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.043417][  T291] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f5d327c208e
[   25.043661][  T291] RDX: 0000000000000000 RSI: 00007ffc1a2f38c0 RDI: 0000000000000005
[   25.043920][  T291] RBP: 00007ffc1a2f3820 R08: 0000000000000000 R09: 0000000000000000
[   25.044164][  T291] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c9
[   25.044407][  T291] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc1a2f3f90
| [   25.081938][  T292] ------------[ cut here ]------------
| [   25.082094][  T292] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/292
| [   25.082320][  T292] Modules linked in:
| [   25.082681][  T292] Tainted: [W]=WARN
[   25.082782][  T292] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.083526][  T292] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.083697][  T292] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.084165][  T292] RSP: 0018:ffa0000000cc7150 EFLAGS: 00010286
[   25.084330][  T292] RAX: 00000000ffffffa6 RBX: ff11000009b65a80 RCX: 1ff4000000198df0
[   25.084526][  T292] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009b65b3c
[   25.084717][  T292] RBP: ff1100000f111000 R08: 1fe220000136cb69 R09: ff1100000dda0b58
[   25.084921][  T292] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   25.085114][  T292] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000b5a58c0
[   25.085308][  T292] FS:  00007f680b5ef840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   25.085535][  T292] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.085697][  T292] CR2: 00000000004ebb20 CR3: 000000000558a005 CR4: 0000000000771ef0
[   25.085909][  T292] PKRU: 55555554
[   25.086007][  T292] Call Trace:
[   25.086104][  T292]  <TASK>
[   25.086170][  T292]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   25.086305][  T292]  ? notifier_call_chain (kernel/notifier.c:85)
[   25.086435][  T292]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   25.086533][  T292]  netif_state_change (net/core/dev.c:1605)
[   25.086662][  T292]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   25.086826][  T292]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   25.086995][  T292]  linkwatch_sync_dev (net/core/link_watch.c:295)
[   25.087122][  T292]  rtnl_getlink (net/core/rtnetlink.c:4273)
[   25.087251][  T292]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.087379][  T292]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.087506][  T292]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   25.087634][  T292]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   25.087763][  T292]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.087901][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   25.088045][  T292]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.088173][  T292]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.088302][  T292]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   25.088429][  T292]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.088558][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   25.088690][  T292]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.088823][  T292]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   25.088957][  T292]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   25.089085][  T292]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   25.089212][  T292]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.089339][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   25.089470][  T292]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.089596][  T292]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.089726][  T292]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   25.089865][  T292]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.089994][  T292]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.090126][  T292]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   25.090254][  T292]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   25.090384][  T292]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.090512][  T292]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.090640][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   25.090772][  T292]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   25.090914][  T292]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   25.091041][  T292]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   25.091173][  T292]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   25.091302][  T292]  ? copy_msghdr_from_user (net/socket.c:2635)
[   25.091431][  T292]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   25.091590][  T292]  ? move_addr_to_kernel (net/socket.c:258)
[   25.091720][  T292]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.091862][  T292]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   25.092023][  T292]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.092151][  T292]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   25.092313][  T292]  ___sys_sendmsg (net/socket.c:2752)
[   25.092441][  T292]  ? copy_msghdr_from_user (net/socket.c:2603)
[   25.092572][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   25.092714][  T292]  ? move_addr_to_user (./include/linux/uaccess.h:236 net/socket.c:302)
[   25.092851][  T292]  ? do_getsockname (net/socket.c:2192)
[   25.092986][  T292]  __sys_sendmsg (net/socket.c:2784)
[   25.093114][  T292]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   25.093247][  T292]  ? __sys_getsockname (net/socket.c:2210)
[   25.093377][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.093506][  T292]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   25.093635][  T292]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   25.093764][  T292]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   25.093901][  T292]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.094061][  T292] RIP: 0033:0x7f680b82908e
[   25.094200][  T292] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   25.094659][  T292] RSP: 002b:00007ffe8d3f2d20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.094865][  T292] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f680b82908e
[   25.095059][  T292] RDX: 0000000000000000 RSI: 00007ffe8d3f2dd0 RDI: 0000000000000006
[   25.095253][  T292] RBP: 00007ffe8d3f2d30 R08: 0000000000000000 R09: 0000000000000000
[   25.095448][  T292] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c8
[   25.095642][  T292] R13: 00007ffe8d3f2e80 R14: 0000000000000000 R15: 0000000000000004
| [   25.098233][  T292] ------------[ cut here ]------------
| [   25.098372][  T292] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/292
| [   25.098598][  T292] Modules linked in:
| [   25.098976][  T292] Tainted: [W]=WARN
[   25.099075][  T292] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.099240][  T292] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   25.099410][  T292] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   25.099882][  T292] RSP: 0018:ffa0000000cc7050 EFLAGS: 00010286
[   25.100047][  T292] RAX: 00000000ffffffa6 RBX: ff11000009b70e40 RCX: 1ff4000000198dd0
[   25.100242][  T292] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009b70efc
[   25.100434][  T292] RBP: ff1100000f111000 R08: 1fe220000136e1e1 R09: ff1100000dda0b80
[   25.100628][  T292] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   25.100827][  T292] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   25.101031][  T292] FS:  00007f680b5ef840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   25.101261][  T292] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.101424][  T292] CR2: 00007f680b977900 CR3: 000000000558a005 CR4: 0000000000771ef0
[   25.101620][  T292] PKRU: 55555554
[   25.101719][  T292] Call Trace:
[   25.101825][  T292]  <TASK>
[   25.101956][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.102143][  T292]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   25.102306][  T292]  notifier_call_chain (kernel/notifier.c:85)
[   25.102441][  T292]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   25.102573][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.102703][  T292]  ? netif_set_group (net/core/dev.c:9947)
[   25.102897][  T292]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   25.103070][  T292]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   25.103202][  T292]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   25.103335][  T292]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   25.103469][  T292]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   25.103630][  T292]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.103760][  T292]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   25.103950][  T292]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   25.104082][  T292]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.104215][  T292]  ? __kernel_text_address (kernel/extable.c:79)
[   25.104347][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   25.104478][  T292]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.104606][  T292]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   25.104737][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.104928][  T292]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   25.105059][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.105187][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.105317][  T292]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   25.105449][  T292]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   25.105579][  T292]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   25.105710][  T292]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   25.105906][  T292]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   25.106040][  T292]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   25.106175][  T292]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.106305][  T292]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.106436][  T292]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   25.106567][  T292]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   25.106697][  T292]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.106890][  T292]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.107024][  T292]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.107153][  T292]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   25.107285][  T292]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   25.107418][  T292]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   25.107548][  T292]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   25.107678][  T292]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   25.107809][  T292]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.107997][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   25.108128][  T292]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   25.108258][  T292]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   25.108390][  T292]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   25.108522][  T292]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.108652][  T292]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.108785][  T292]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   25.108975][  T292]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   25.109107][  T292]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.109240][  T292]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.109372][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   25.109505][  T292]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   25.109637][  T292]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   25.109770][  T292]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   25.109965][  T292]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   25.110098][  T292]  ? copy_msghdr_from_user (net/socket.c:2635)
[   25.110234][  T292]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   25.110397][  T292]  ? move_addr_to_kernel (net/socket.c:258)
[   25.110530][  T292]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.110672][  T292]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   25.110803][  T292]  ___sys_sendmsg (net/socket.c:2752)
[   25.110992][  T292]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   25.111155][  T292]  ? copy_msghdr_from_user (net/socket.c:2603)
[   25.111299][  T292]  __sys_sendmsg (net/socket.c:2784)
[   25.111432][  T292]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   25.111562][  T292]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   25.111728][  T292]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   25.111921][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   25.112062][  T292]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   25.112195][  T292]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   25.112329][  T292]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   25.112461][  T292]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.112628][  T292] RIP: 0033:0x7f680b82908e
[   25.112768][  T292] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   25.113297][  T292] RSP: 002b:00007ffe8d3f49a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.113497][  T292] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f680b82908e
[   25.113691][  T292] RDX: 0000000000000000 RSI: 00007ffe8d3f4a50 RDI: 0000000000000005
[   25.113944][  T292] RBP: 00007ffe8d3f49b0 R08: 0000000000000000 R09: 0000000000000000
[   25.114140][  T292] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3c9
[   25.114334][  T292] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe8d3f5120
| [   28.208784][   T12] ------------[ cut here ]------------
| [   28.209004][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   28.209288][   T12] Modules linked in:
| [   28.209744][   T12] Tainted: [W]=WARN
[   28.209902][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.210110][   T12] Workqueue: netns cleanup_net
[   28.210283][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.210483][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.211043][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.211308][   T12] RAX: 00000000ffffffa6 RBX: ff110000098da3c0 RCX: 1ff4000000018eed
[   28.211605][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098da47c
[   28.211919][   T12] RBP: ff1100000f14c000 R08: 1fe220000131b491 R09: ff11000001aed1d0
[   28.212206][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   28.212490][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.212794][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   28.213153][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.213405][   T12] CR2: 00007f0f831e6574 CR3: 000000003174d002 CR4: 0000000000771ef0
[   28.213701][   T12] PKRU: 55555554
[   28.213865][   T12] Call Trace:
[   28.214000][   T12]  <TASK>
[   28.214122][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.214322][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.214516][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.214686][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.214876][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.215040][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.215207][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.215377][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.215548][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.215710][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.215901][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.216070][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.216236][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.216409][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.216589][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.216758][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.216954][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.217125][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.217297][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.217469][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.217634][   T12]  kthread (kernel/kthread.c:436)
[   28.217773][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.217988][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.218155][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.218326][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.218523][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.218692][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.218876][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.221992][   T12] ------------[ cut here ]------------
| [   28.222185][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   28.222469][   T12] Modules linked in:
| [   28.223153][   T12] Tainted: [W]=WARN
[   28.223335][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.223576][   T12] Workqueue: netns cleanup_net
[   28.223793][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.224058][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.224649][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.224942][   T12] RAX: 00000000ffffffa6 RBX: ff110000098dac80 RCX: 1ff4000000018eed
[   28.225229][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098dad3c
[   28.225580][   T12] RBP: ff1100000f0c1000 R08: 1fe220000131b5a9 R09: ff11000001aed1d0
[   28.225870][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   28.226186][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.226608][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   28.226904][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.227098][   T12] CR2: 00007f0f831e6574 CR3: 000000003174d002 CR4: 0000000000771ef0
[   28.227326][   T12] PKRU: 55555554
[   28.227460][   T12] Call Trace:
[   28.227595][   T12]  <TASK>
[   28.227703][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.227925][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.228118][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.228287][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.228459][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.228626][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.228803][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.228993][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.229235][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.229471][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.229644][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.229813][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.229996][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.230235][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.230475][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.230648][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.230818][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.231076][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.231248][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.231419][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.231584][   T12]  kthread (kernel/kthread.c:436)
[   28.231720][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.232011][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.232180][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.232348][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.232613][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.232780][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.232965][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.235992][   T12] ------------[ cut here ]------------
| [   28.236126][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   28.236362][   T12] Modules linked in:
| [   28.236727][   T12] Tainted: [W]=WARN
[   28.236817][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.236985][   T12] Workqueue: netns cleanup_net
[   28.237107][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.237342][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.237765][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.237998][   T12] RAX: 00000000ffffffa6 RBX: ff1100000dbdfe00 RCX: 1ff4000000018eed
[   28.238249][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbdfebc
[   28.238430][   T12] RBP: ff11000008fbc000 R08: 1fe2200001b7bfd9 R09: ff11000001aed1d0
[   28.238606][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.238789][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.238982][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   28.239192][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.239345][   T12] CR2: 0000563f9f965620 CR3: 0000000009524006 CR4: 0000000000771ef0
[   28.239534][   T12] PKRU: 55555554
[   28.239622][   T12] Call Trace:
[   28.239709][   T12]  <TASK>
[   28.239770][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.239931][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.240147][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.240266][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.240384][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.240574][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.240693][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.240894][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.241016][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.241134][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.241256][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.241373][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.241491][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.241612][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.241731][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.241865][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.241988][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.242105][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.242225][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.242417][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.242533][   T12]  kthread (kernel/kthread.c:436)
[   28.242626][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.242775][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.242903][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.243021][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.243167][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.243285][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.243402][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.245640][   T12] ------------[ cut here ]------------
| [   28.245806][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   28.246807][   T12] Modules linked in:
| [   28.247275][   T12] Tainted: [W]=WARN
[   28.247364][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.247521][   T12] Workqueue: netns cleanup_net
[   28.247644][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.247798][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.248323][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.248472][   T12] RAX: 00000000ffffffa6 RBX: ff1100000dbdfa80 RCX: 1ff4000000018eed
[   28.248649][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbdfb3c
[   28.248831][   T12] RBP: ff11000008309000 R08: 1fe2200001b7bf69 R09: ff11000001aed1d0
[   28.249097][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   28.249274][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.249455][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   28.249665][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.249813][   T12] CR2: 00007f346e7c8574 CR3: 000000003174d003 CR4: 0000000000771ef0
[   28.250069][   T12] PKRU: 55555554
[   28.250157][   T12] Call Trace:
[   28.250245][   T12]  <TASK>
[   28.250307][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.250461][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.250612][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.250732][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.250924][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.251042][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.251163][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.251283][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.251403][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.251519][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.251639][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.251759][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.251961][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.252083][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.252202][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.252325][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.252447][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.252565][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.252689][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.252813][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.253001][   T12]  kthread (kernel/kthread.c:436)
[   28.253090][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.253235][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.253357][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.253475][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.253620][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.253814][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.254006][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.258336][   T12] ------------[ cut here ]------------
| [   28.258471][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   28.258698][   T12] Modules linked in:
| [   28.259071][   T12] Tainted: [W]=WARN
[   28.259160][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.259305][   T12] Workqueue: netns cleanup_net
[   28.259426][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.259579][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.260010][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.260156][   T12] RAX: 00000000ffffffa6 RBX: ff11000012da3c40 RCX: 1ff4000000018eed
[   28.260337][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012da3cfc
[   28.260510][   T12] RBP: ff11000005289000 R08: 1fe22000025b47a1 R09: ff11000001aed1d0
[   28.260693][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   28.260874][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.261049][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   28.261251][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.261399][   T12] CR2: 0000557baa7bf058 CR3: 000000003174d002 CR4: 0000000000771ef0
[   28.261576][   T12] PKRU: 55555554
[   28.261666][   T12] Call Trace:
[   28.261752][   T12]  <TASK>
[   28.261814][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.262010][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.262155][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.262273][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.262391][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.262505][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.262637][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.262755][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.262883][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.262997][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.263117][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.263237][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.263351][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.263468][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.263589][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.263707][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.263841][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.263958][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.264078][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.264199][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.264314][   T12]  kthread (kernel/kthread.c:436)
[   28.264402][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.264552][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.264668][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.264789][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.264943][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.265063][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.265178][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.286702][   T12] ------------[ cut here ]------------
| [   28.286893][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   28.287181][   T12] Modules linked in:
| [   28.287653][   T12] Tainted: [W]=WARN
[   28.287794][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.288010][   T12] Workqueue: netns cleanup_net
[   28.288189][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.288396][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.288907][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   28.289110][   T12] RAX: 00000000ffffffa6 RBX: ff110000098db000 RCX: 1ff4000000018eaf
[   28.289338][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098db0bc
[   28.289566][   T12] RBP: ff1100000f111000 R08: 1fe220000131b619 R09: ff11000001aed1d0
[   28.289798][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   28.290050][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000956c000
[   28.290294][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   28.290566][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.290767][   T12] CR2: 00007f0f831e6574 CR3: 000000003174d002 CR4: 0000000000771ef0
[   28.291021][   T12] PKRU: 55555554
[   28.291160][   T12] Call Trace:
[   28.291299][   T12]  <TASK>
[   28.291409][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.291581][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.291725][   T12]  netif_close_many (net/core/dev.c:1804)
[   28.291915][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.292085][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.292254][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.292426][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   28.292597][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   28.292797][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   28.293015][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.293187][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.293388][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.293559][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.293728][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   28.293948][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   28.294122][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   28.294298][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   28.294469][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   28.294643][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   28.294819][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   28.295014][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.295185][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.295359][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.295532][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.295703][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.295893][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.296067][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.296242][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.296419][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.296588][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.296765][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.296961][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.297134][   T12]  kthread (kernel/kthread.c:436)
[   28.297276][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.297479][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.297650][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.297822][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.298045][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.298218][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.298389][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.301003][   T12] ------------[ cut here ]------------
| [   28.301171][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   28.301458][   T12] Modules linked in:
| [   28.302517][   T12] Tainted: [W]=WARN
[   28.302761][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.303104][   T12] Workqueue: netns cleanup_net
[   28.303295][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.303503][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.304005][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   28.304208][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c693000 RCX: 1ff4000000018eaf
[   28.304442][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c6930bc
[   28.304697][   T12] RBP: ff1100000956c000 R08: 1fe22000018d2619 R09: ff11000001aed1d0
[   28.304942][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   28.305173][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   28.305406][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   28.305679][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.305902][   T12] CR2: 00007f0f831e6574 CR3: 000000003174d002 CR4: 0000000000771ef0
[   28.306164][   T12] PKRU: 55555554
[   28.306304][   T12] Call Trace:
[   28.306443][   T12]  <TASK>
[   28.306554][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.306726][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.306914][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.307057][   T12]  netif_close_many (net/core/dev.c:1804)
[   28.307227][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.307396][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.307567][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.307750][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   28.307945][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   28.308147][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   28.308350][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.308523][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.308753][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.308943][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.309113][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   28.309318][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   28.309494][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   28.309666][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   28.309856][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   28.310030][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   28.310204][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   28.310378][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.310552][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.310725][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.310917][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.311102][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.311274][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.311447][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.311619][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.311797][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.311986][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.312163][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.312341][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.312511][   T12]  kthread (kernel/kthread.c:436)
[   28.312652][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.312870][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.313053][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.313224][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.313424][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.313595][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.313765][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.318261][   T12] ------------[ cut here ]------------
| [   28.318426][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   28.318707][   T12] Modules linked in:
| [   28.319186][   T12] Tainted: [W]=WARN
[   28.319322][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.319518][   T12] Workqueue: netns cleanup_net
[   28.319688][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.319907][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.320375][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   28.320571][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c83cac0 RCX: 1ff4000000018ed5
[   28.320792][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c83cb7c
[   28.321108][   T12] RBP: ff1100000f111000 R08: 1fe2200001907971 R09: ff11000001aed1d0
[   28.321379][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   28.321649][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.321933][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   28.322242][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.322486][   T12] CR2: 00007f0f831e6574 CR3: 000000003174d002 CR4: 0000000000771ef0
[   28.322758][   T12] PKRU: 55555554
[   28.322959][   T12] Call Trace:
[   28.323139][   T12]  <TASK>
[   28.323295][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.323541][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.323779][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.324017][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.324230][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   28.324473][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   28.324686][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   28.324916][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   28.325130][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   28.325346][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   28.325561][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.325772][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.326007][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.326222][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.326433][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.326647][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.326878][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.327094][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.327312][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.327524][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.327738][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.327976][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.328190][   T12]  kthread (kernel/kthread.c:436)
[   28.328371][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.328611][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.328884][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.329191][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.329474][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.329747][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.329932][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.332692][   T12] ------------[ cut here ]------------
| [   28.333037][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   28.333314][   T12] Modules linked in:
| [   28.333776][   T12] Tainted: [W]=WARN
[   28.333930][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.334126][   T12] Workqueue: netns cleanup_net
[   28.334298][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.334499][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.334982][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   28.335180][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c83d8c0 RCX: 1ff4000000018ed5
[   28.335402][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c83d97c
[   28.335623][   T12] RBP: ff1100000956c000 R08: 1fe2200001907b31 R09: ff11000001aed1d0
[   28.335864][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   28.336085][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.336311][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   28.336563][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.336760][   T12] CR2: 00007f0f831e6574 CR3: 000000003174d002 CR4: 0000000000771ef0
[   28.337004][   T12] PKRU: 55555554
[   28.337140][   T12] Call Trace:
[   28.337276][   T12]  <TASK>
[   28.337384][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.337585][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.337778][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.337971][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.338137][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   28.338335][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   28.338503][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   28.338668][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   28.338850][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   28.339018][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   28.339190][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.339355][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.339526][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.339693][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.339876][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.340045][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.340212][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.340382][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.340559][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.340725][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.340914][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.341086][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.341252][   T12]  kthread (kernel/kthread.c:436)
[   28.341388][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.341585][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.341754][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.341939][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.342134][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.342300][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.342468][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.353911][   T12] ------------[ cut here ]------------
| [   28.354077][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   28.354363][   T12] Modules linked in:
| [   28.354814][   T12] Tainted: [W]=WARN
[   28.355114][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.355307][   T12] Workqueue: netns cleanup_net
[   28.355476][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.355675][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.356167][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   28.356365][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cf9ee40 RCX: 1ff4000000018ed5
[   28.356588][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf9eefc
[   28.356808][   T12] RBP: ff1100000a4ec000 R08: 1fe22000019f3de1 R09: ff11000001aed1d0
[   28.357047][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   28.357270][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.357498][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   28.357749][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.357962][   T12] CR2: 00007f0f831e6574 CR3: 000000003174d002 CR4: 0000000000771ef0
[   28.358186][   T12] PKRU: 55555554
[   28.358321][   T12] Call Trace:
[   28.358454][   T12]  <TASK>
[   28.358562][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.358759][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.358968][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.359137][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.359302][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   28.359502][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   28.359668][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   28.359853][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   28.360020][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   28.360187][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   28.360355][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.360522][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.360692][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.360876][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.361042][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.361212][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.361379][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.361547][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.361718][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.361902][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.362073][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.362243][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.362407][   T12]  kthread (kernel/kthread.c:436)
[   28.362543][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.362737][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.362923][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.363092][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.363285][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.363450][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.363616][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.372070][  T307] ------------[ cut here ]------------
| [   28.372216][  T307] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/307
| [   28.372446][  T307] Modules linked in:
| [   28.372819][  T307] Tainted: [W]=WARN
[   28.372932][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.373096][  T307] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.373268][  T307] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.373732][  T307] RSP: 0018:ffa0000000d27a80 EFLAGS: 00010286
[   28.373906][  T307] RAX: 00000000ffffffa6 RBX: ff1100000cf9e580 RCX: 1ff40000001a4f16
[   28.374101][  T307] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf9e63c
[   28.374297][  T307] RBP: ff11000008d49000 R08: 1fe22000019f3cc9 R09: ff1100000df0d180
[   28.374495][  T307] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.374687][  T307] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008d49000
[   28.374894][  T307] FS:  00007fc41c770840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   28.375124][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.375287][  T307] CR2: 00007fc41c977430 CR3: 000000000e779004 CR4: 0000000000771ef0
[   28.375485][  T307] PKRU: 55555554
[   28.375582][  T307] Call Trace:
[   28.375680][  T307]  <TASK>
[   28.375747][  T307]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.375888][  T307]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.376019][  T307]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.376119][  T307]  register_netdevice (net/core/dev.c:11488)
[   28.376253][  T307]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.376416][  T307]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.376547][  T307]  register_netdev (net/core/dev.c:11552)
[   28.376675][  T307]  loopback_net_init (drivers/net/loopback.c:218)
[   28.376808][  T307]  ops_init (net/core/net_namespace.c:137)
[   28.376918][  T307]  setup_net (net/core/net_namespace.c:446)
[   28.377018][  T307]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.377151][  T307]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.377283][  T307]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.377416][  T307]  copy_net_ns (net/core/net_namespace.c:579)
[   28.377548][  T307]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.377682][  T307]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.377812][  T307]  ksys_unshare (kernel/fork.c:3243)
[   28.377954][  T307]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.378088][  T307]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.378220][  T307]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.378354][  T307]  ? __ia32_sys_open (fs/open.c:1374)
[   28.378487][  T307]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.378618][  T307]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.378748][  T307]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.378890][  T307]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.379020][  T307]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.379153][  T307]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.379316][  T307] RIP: 0033:0x7fc41ca32bcb
[   28.379455][  T307] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.379928][  T307] RSP: 002b:00007ffd5d1310c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   28.380127][  T307] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc41ca32bcb
[   28.380320][  T307] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.380514][  T307] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.380708][  T307] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5d1332f0
[   28.380912][  T307] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd5d134875
| [   28.385060][  T307] ------------[ cut here ]------------
| [   28.385194][  T307] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/307
| [   28.385421][  T307] Modules linked in:
| [   28.385782][  T307] Tainted: [W]=WARN
[   28.385891][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.386052][  T307] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.386221][  T307] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.386677][  T307] RSP: 0018:ffa0000000d27918 EFLAGS: 00010286
[   28.386848][  T307] RAX: 00000000ffffffa6 RBX: ff11000004c86580 RCX: 1ff40000001a4ee9
[   28.387043][  T307] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004c8663c
[   28.387236][  T307] RBP: ff1100000a17c000 R08: 1fe2200000990cc9 R09: ff1100000df0d180
[   28.387430][  T307] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.387622][  T307] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a17c000
[   28.387815][  T307] FS:  00007fc41c770840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   28.388052][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.388216][  T307] CR2: 00007fc41c977430 CR3: 000000000e779004 CR4: 0000000000771ef0
[   28.388410][  T307] PKRU: 55555554
[   28.388506][  T307] Call Trace:
[   28.388602][  T307]  <TASK>
[   28.388669][  T307]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.388802][  T307]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.388943][  T307]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.389042][  T307]  register_netdevice (net/core/dev.c:11488)
[   28.389173][  T307]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.389339][  T307]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.389472][  T307]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   28.389602][  T307]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   28.389735][  T307]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   28.389877][  T307]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   28.390009][  T307]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   28.390139][  T307]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   28.390271][  T307]  ops_init (net/core/net_namespace.c:137)
[   28.390370][  T307]  setup_net (net/core/net_namespace.c:446)
[   28.390469][  T307]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.390598][  T307]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.390727][  T307]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.390869][  T307]  copy_net_ns (net/core/net_namespace.c:579)
[   28.390998][  T307]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.391131][  T307]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.391261][  T307]  ksys_unshare (kernel/fork.c:3243)
[   28.391388][  T307]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.391520][  T307]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.391648][  T307]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.391779][  T307]  ? __ia32_sys_open (fs/open.c:1374)
[   28.391921][  T307]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.392049][  T307]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.392178][  T307]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.392308][  T307]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.392437][  T307]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.392569][  T307]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.392730][  T307] RIP: 0033:0x7fc41ca32bcb
[   28.392875][  T307] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.393334][  T307] RSP: 002b:00007ffd5d1310c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   28.393531][  T307] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc41ca32bcb
[   28.393723][  T307] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.393927][  T307] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.394119][  T307] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5d1332f0
[   28.394312][  T307] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd5d134875
| [   28.398164][  T307] ------------[ cut here ]------------
| [   28.398302][  T307] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/307
| [   28.398530][  T307] Modules linked in:
| [   28.398905][  T307] Tainted: [W]=WARN
[   28.399003][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.399167][  T307] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.399339][  T307] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.399805][  T307] RSP: 0018:ffa0000000d278f8 EFLAGS: 00010286
[   28.399977][  T307] RAX: 00000000ffffffa6 RBX: ff1100000b934040 RCX: 1ff40000001a4ee5
[   28.400175][  T307] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b9340fc
[   28.400370][  T307] RBP: ff110000093dc000 R08: 1fe2200001726821 R09: ff1100000df0d180
[   28.400565][  T307] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.400760][  T307] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000093dc000
[   28.400968][  T307] FS:  00007fc41c770840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   28.401197][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.401361][  T307] CR2: 00007fc41c977430 CR3: 000000000e779004 CR4: 0000000000771ef0
[   28.401560][  T307] PKRU: 55555554
[   28.401658][  T307] Call Trace:
[   28.401756][  T307]  <TASK>
[   28.401824][  T307]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.401968][  T307]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.402099][  T307]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.402199][  T307]  register_netdevice (net/core/dev.c:11488)
[   28.402333][  T307]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.402500][  T307]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.402634][  T307]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   28.402766][  T307]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   28.402910][  T307]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   28.403044][  T307]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   28.403176][  T307]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   28.403310][  T307]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   28.403444][  T307]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   28.403580][  T307]  vti_init_net (net/ipv4/ip_vti.c:517)
[   28.403712][  T307]  ops_init (net/core/net_namespace.c:137)
[   28.403813][  T307]  setup_net (net/core/net_namespace.c:446)
[   28.403926][  T307]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.404059][  T307]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.404191][  T307]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.404325][  T307]  copy_net_ns (net/core/net_namespace.c:579)
[   28.404462][  T307]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.404599][  T307]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.404733][  T307]  ksys_unshare (kernel/fork.c:3243)
[   28.404874][  T307]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.405006][  T307]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.405137][  T307]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.405270][  T307]  ? __ia32_sys_open (fs/open.c:1374)
[   28.405403][  T307]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.405535][  T307]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.405666][  T307]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.405798][  T307]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.405940][  T307]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.406073][  T307]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.406237][  T307] RIP: 0033:0x7fc41ca32bcb
[   28.406374][  T307] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.406848][  T307] RSP: 002b:00007ffd5d1310c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   28.407047][  T307] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc41ca32bcb
[   28.407242][  T307] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.407436][  T307] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.407634][  T307] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5d1332f0
[   28.407841][  T307] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd5d134875
| [   28.411897][  T307] ------------[ cut here ]------------
| [   28.412030][  T307] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/307
| [   28.412254][  T307] Modules linked in:
| [   28.412614][  T307] Tainted: [W]=WARN
[   28.412714][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.412888][  T307] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.413057][  T307] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.413519][  T307] RSP: 0018:ffa0000000d27a78 EFLAGS: 00010286
[   28.413683][  T307] RAX: 00000000ffffffa6 RBX: ff1100000b935540 RCX: 1ff40000001a4f15
[   28.413890][  T307] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b9355fc
[   28.414085][  T307] RBP: ff1100000a504000 R08: 1fe2200001726ac1 R09: ff1100000df0d180
[   28.414278][  T307] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.414475][  T307] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a504000
[   28.414670][  T307] FS:  00007fc41c770840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   28.414907][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.415072][  T307] CR2: 00007fc41c977430 CR3: 000000000e779004 CR4: 0000000000771ef0
[   28.415270][  T307] PKRU: 55555554
[   28.415366][  T307] Call Trace:
[   28.415464][  T307]  <TASK>
[   28.415532][  T307]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.415661][  T307]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.415793][  T307]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.415903][  T307]  register_netdevice (net/core/dev.c:11488)
[   28.416036][  T307]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.416198][  T307]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.416330][  T307]  register_netdev (net/core/dev.c:11552)
[   28.416463][  T307]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   28.416594][  T307]  ops_init (net/core/net_namespace.c:137)
[   28.416694][  T307]  setup_net (net/core/net_namespace.c:446)
[   28.416793][  T307]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.416933][  T307]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.417065][  T307]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.417198][  T307]  copy_net_ns (net/core/net_namespace.c:579)
[   28.417330][  T307]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.417465][  T307]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.417597][  T307]  ksys_unshare (kernel/fork.c:3243)
[   28.417728][  T307]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.417870][  T307]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.418003][  T307]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.418137][  T307]  ? __ia32_sys_open (fs/open.c:1374)
[   28.418271][  T307]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.418402][  T307]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.418533][  T307]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.418665][  T307]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.418797][  T307]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.418939][  T307]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.419105][  T307] RIP: 0033:0x7fc41ca32bcb
[   28.419243][  T307] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.419711][  T307] RSP: 002b:00007ffd5d1310c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   28.419915][  T307] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc41ca32bcb
[   28.420110][  T307] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.420304][  T307] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.420498][  T307] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5d1332f0
[   28.420691][  T307] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd5d134875
| [   28.424754][  T307] ------------[ cut here ]------------
| [   28.424901][  T307] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/307
| [   28.425128][  T307] Modules linked in:
| [   28.425493][  T307] Tainted: [W]=WARN
[   28.425592][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.425754][  T307] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.425934][  T307] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.426402][  T307] RSP: 0018:ffa0000000d27a68 EFLAGS: 00010286
[   28.426568][  T307] RAX: 00000000ffffffa6 RBX: ff110000061cee40 RCX: 1ff40000001a4f13
[   28.426762][  T307] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000061ceefc
[   28.426969][  T307] RBP: ff11000007c31000 R08: 1fe2200000c39de1 R09: ff1100000df0d180
[   28.427164][  T307] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.427359][  T307] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007c31000
[   28.427559][  T307] FS:  00007fc41c770840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   28.427789][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.427964][  T307] CR2: 00007fc41c977430 CR3: 000000000e779004 CR4: 0000000000771ef0
[   28.428160][  T307] PKRU: 55555554
[   28.428257][  T307] Call Trace:
[   28.428356][  T307]  <TASK>
[   28.428424][  T307]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.428555][  T307]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.428688][  T307]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.428787][  T307]  register_netdevice (net/core/dev.c:11488)
[   28.428928][  T307]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.429092][  T307]  register_netdev (net/core/dev.c:11552)
[   28.429221][  T307]  sit_init_net (net/ipv6/sit.c:1860)
[   28.429352][  T307]  ops_init (net/core/net_namespace.c:137)
[   28.429451][  T307]  setup_net (net/core/net_namespace.c:446)
[   28.429552][  T307]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.429683][  T307]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.429813][  T307]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.429955][  T307]  copy_net_ns (net/core/net_namespace.c:579)
[   28.430086][  T307]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.430218][  T307]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.430349][  T307]  ksys_unshare (kernel/fork.c:3243)
[   28.430482][  T307]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.430612][  T307]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.430744][  T307]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.430886][  T307]  ? __ia32_sys_open (fs/open.c:1374)
[   28.431018][  T307]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.431146][  T307]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.431276][  T307]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.431405][  T307]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.431625][  T307]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.431755][  T307]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.431927][  T307] RIP: 0033:0x7fc41ca32bcb
[   28.432152][  T307] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.432614][  T307] RSP: 002b:00007ffd5d1310c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   28.432909][  T307] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc41ca32bcb
[   28.433103][  T307] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.433383][  T307] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.433577][  T307] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5d1332f0
[   28.433770][  T307] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd5d134875
| [   28.438813][  T307] ------------[ cut here ]------------
| [   28.439042][  T307] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/307
| [   28.439270][  T307] Modules linked in:
| [   28.439720][  T307] Tainted: [W]=WARN
[   28.439820][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.439995][  T307] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.440255][  T307] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.440715][  T307] RSP: 0018:ffa0000000d27a78 EFLAGS: 00010286
[   28.440976][  T307] RAX: 00000000ffffffa6 RBX: ff1100000dbf5700 RCX: 1ff40000001a4f15
[   28.441171][  T307] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbf57bc
[   28.441452][  T307] RBP: ff1100000a3d1000 R08: 1fe2200001b7eaf9 R09: ff1100000df0d180
[   28.441646][  T307] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.441848][  T307] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a3d1000
[   28.442133][  T307] FS:  00007fc41c770840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   28.442362][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.442528][  T307] CR2: 00007fc41c977430 CR3: 000000000e779004 CR4: 0000000000771ef0
[   28.442809][  T307] PKRU: 55555554
[   28.442917][  T307] Call Trace:
[   28.443016][  T307]  <TASK>
[   28.443083][  T307]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.443299][  T307]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.443431][  T307]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.443530][  T307]  register_netdevice (net/core/dev.c:11488)
[   28.443660][  T307]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.443917][  T307]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.444053][  T307]  register_netdev (net/core/dev.c:11552)
[   28.444184][  T307]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   28.444315][  T307]  ops_init (net/core/net_namespace.c:137)
[   28.444414][  T307]  setup_net (net/core/net_namespace.c:446)
[   28.444598][  T307]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.444728][  T307]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.444868][  T307]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.444999][  T307]  copy_net_ns (net/core/net_namespace.c:579)
[   28.445217][  T307]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.445350][  T307]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.445479][  T307]  ksys_unshare (kernel/fork.c:3243)
[   28.445611][  T307]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.445829][  T307]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.445966][  T307]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.446097][  T307]  ? __ia32_sys_open (fs/open.c:1374)
[   28.446232][  T307]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.446445][  T307]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.446574][  T307]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.446704][  T307]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.446844][  T307]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.447058][  T307]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.447217][  T307] RIP: 0033:0x7fc41ca32bcb
[   28.447352][  T307] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.447917][  T307] RSP: 002b:00007ffd5d1310c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   28.448114][  T307] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc41ca32bcb
[   28.448394][  T307] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.448588][  T307] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.448880][  T307] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5d1332f0
[   28.449072][  T307] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd5d134875
| [   28.476989][   T12] ------------[ cut here ]------------
| [   28.477127][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   28.477363][   T12] Modules linked in:
| [   28.477719][   T12] Tainted: [W]=WARN
[   28.477807][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.477962][   T12] Workqueue: netns cleanup_net
[   28.478084][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.478236][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.478655][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.478806][   T12] RAX: 00000000ffffffa6 RBX: ff1100001184cc80 RCX: 1ff4000000018eed
[   28.478992][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001184cd3c
[   28.479165][   T12] RBP: ff11000005f39000 R08: 1fe22000023099a9 R09: ff11000001aed1d0
[   28.479339][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   28.479521][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.479706][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   28.479924][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.480070][   T12] CR2: 00007ff5bd444668 CR3: 000000003174d003 CR4: 0000000000771ef0
[   28.480244][   T12] PKRU: 55555554
[   28.480330][   T12] Call Trace:
[   28.480418][   T12]  <TASK>
[   28.480479][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.480671][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.480872][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.480993][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.481119][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.481239][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.481357][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.481475][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.481607][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.481773][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.481961][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.482096][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.482213][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.482333][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.482450][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.482568][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.482689][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.482807][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.482940][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.483061][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.483186][   T12]  kthread (kernel/kthread.c:436)
[   28.483279][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.483427][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.483550][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.483667][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.483814][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.483941][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.484062][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.486247][   T12] ------------[ cut here ]------------
| [   28.486365][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   28.486591][   T12] Modules linked in:
| [   28.486958][   T12] Tainted: [W]=WARN
[   28.487048][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.487195][   T12] Workqueue: netns cleanup_net
[   28.487317][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.487468][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.487897][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.488046][   T12] RAX: 00000000ffffffa6 RBX: ff1100001184d700 RCX: 1ff4000000018eed
[   28.488230][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001184d7bc
[   28.488401][   T12] RBP: ff1100000a4d4000 R08: 1fe2200002309af9 R09: ff11000001aed1d0
[   28.488574][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   28.488748][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.488930][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   28.489135][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.489283][   T12] CR2: 00007ff5bd444668 CR3: 000000003174d003 CR4: 0000000000771ef0
[   28.489456][   T12] PKRU: 55555554
[   28.489543][   T12] Call Trace:
[   28.489629][   T12]  <TASK>
[   28.489689][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.489846][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.489993][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.490110][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.490228][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.490344][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.490463][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.490585][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.490704][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.490820][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.490952][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.491070][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.491185][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.491303][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.491419][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.491538][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.491664][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.491780][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.491907][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.492031][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.492149][   T12]  kthread (kernel/kthread.c:436)
[   28.492237][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.492380][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.492497][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.492613][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.492759][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.492886][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.493002][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.501653][   T12] ------------[ cut here ]------------
| [   28.501777][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   28.502009][   T12] Modules linked in:
| [   28.502362][   T12] Tainted: [W]=WARN
[   28.502449][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.502598][   T12] Workqueue: netns cleanup_net
[   28.502719][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.502879][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.503291][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.503442][   T12] RAX: 00000000ffffffa6 RBX: ff110000098dae40 RCX: 1ff4000000018eed
[   28.503614][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098daefc
[   28.503789][   T12] RBP: ff1100000a4cc000 R08: 1fe220000131b5e1 R09: ff11000001aed1d0
[   28.503975][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   28.504151][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.504332][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   28.504535][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.504680][   T12] CR2: 00007ff5bd444668 CR3: 000000003174d003 CR4: 0000000000771ef0
[   28.504865][   T12] PKRU: 55555554
[   28.504952][   T12] Call Trace:
[   28.505040][   T12]  <TASK>
[   28.505101][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.505254][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.505401][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.505520][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.505637][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.505752][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.505877][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.505995][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.506114][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.506228][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.506347][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.506465][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.506580][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.506699][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.506815][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.506944][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.507065][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.507182][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.507303][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.507425][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.507542][   T12]  kthread (kernel/kthread.c:436)
[   28.507631][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.507775][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.507899][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.508016][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.508160][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.508275][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.508391][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.510318][   T12] ------------[ cut here ]------------
| [   28.510437][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   28.510661][   T12] Modules linked in:
| [   28.511510][   T12] Tainted: [W]=WARN
[   28.511600][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.511745][   T12] Workqueue: netns cleanup_net
[   28.511916][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.512066][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.512482][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.512627][   T12] RAX: 00000000ffffffa6 RBX: ff110000098da200 RCX: 1ff4000000018eed
[   28.512798][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000098da2bc
[   28.513020][   T12] RBP: ff11000008ba1000 R08: 1fe220000131b459 R09: ff11000001aed1d0
[   28.513239][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   28.513411][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.513583][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   28.513785][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.513980][   T12] CR2: 00007ff5bd444668 CR3: 000000003174d003 CR4: 0000000000771ef0
[   28.514151][   T12] PKRU: 55555554
[   28.514237][   T12] Call Trace:
[   28.514324][   T12]  <TASK>
[   28.514384][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.514535][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.514679][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.514794][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.514964][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.515079][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.515195][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.515312][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.515430][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.515547][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.515669][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.515787][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.515958][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.516076][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.516197][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.516314][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.516433][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.516553][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.516672][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.516794][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.516962][   T12]  kthread (kernel/kthread.c:436)
[   28.517048][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.517192][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.517308][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.517424][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.517570][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.517687][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.517803][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.520363][   T12] ------------[ cut here ]------------
| [   28.520493][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   28.520724][   T12] Modules linked in:
| [   28.521089][   T12] Tainted: [W]=WARN
[   28.521176][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.521324][   T12] Workqueue: netns cleanup_net
[   28.521444][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.521600][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.522021][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.522168][   T12] RAX: 00000000ffffffa6 RBX: ff11000012da38c0 RCX: 1ff4000000018eed
[   28.522341][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012da397c
[   28.522516][   T12] RBP: ff11000009041000 R08: 1fe22000025b4731 R09: ff11000001aed1d0
[   28.522688][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   28.522876][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.523049][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   28.523249][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.523396][   T12] CR2: 0000558f5a87cd5c CR3: 000000000bc7c004 CR4: 0000000000771ef0
[   28.523571][   T12] PKRU: 55555554
[   28.523661][   T12] Call Trace:
[   28.523749][   T12]  <TASK>
[   28.523810][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.523964][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.524108][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.524231][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.524349][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.524466][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.524584][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.524706][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.524824][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.524947][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.525066][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.525182][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.525297][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.525415][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.525532][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.525648][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.525767][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.525892][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.526012][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.526132][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.526248][   T12]  kthread (kernel/kthread.c:436)
[   28.526336][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.526483][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.526603][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.526719][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.526872][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.526987][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.527107][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.538525][  T308] ------------[ cut here ]------------
| [   28.538706][  T308] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/308
| [   28.538998][  T308] Modules linked in:
| [   28.539456][  T308] Tainted: [W]=WARN
[   28.539599][  T308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.539806][  T308] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.540168][  T308] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.540675][  T308] RSP: 0018:ffa0000000d17a80 EFLAGS: 00010286
[   28.540904][  T308] RAX: 00000000ffffffa6 RBX: ff110000090291c0 RCX: 1ff40000001a2f16
[   28.541145][  T308] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000902927c
[   28.541387][  T308] RBP: ff11000008d8c000 R08: 1fe2200001205251 R09: ff1100000df08b80
[   28.541624][  T308] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   28.541883][  T308] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008d8c000
[   28.542129][  T308] FS:  00007f430a646840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   28.542411][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.542622][  T308] CR2: 00007f430a9bf493 CR3: 000000000e682005 CR4: 0000000000771ef0
[   28.542885][  T308] PKRU: 55555554
[   28.543031][  T308] Call Trace:
[   28.543175][  T308]  <TASK>
[   28.543288][  T308]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.543466][  T308]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.543646][  T308]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.543793][  T308]  register_netdevice (net/core/dev.c:11488)
[   28.543988][  T308]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.544197][  T308]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.544376][  T308]  register_netdev (net/core/dev.c:11552)
[   28.544556][  T308]  loopback_net_init (drivers/net/loopback.c:218)
[   28.544736][  T308]  ops_init (net/core/net_namespace.c:137)
[   28.544907][  T308]  setup_net (net/core/net_namespace.c:446)
[   28.545052][  T308]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.545230][  T308]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.545410][  T308]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.545592][  T308]  copy_net_ns (net/core/net_namespace.c:579)
[   28.545771][  T308]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.545969][  T308]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.546152][  T308]  ksys_unshare (kernel/fork.c:3243)
[   28.546331][  T308]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.546508][  T308]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.546685][  T308]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.546880][  T308]  ? __ia32_sys_open (fs/open.c:1374)
[   28.547063][  T308]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.547239][  T308]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.547414][  T308]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.547595][  T308]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.547771][  T308]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.547967][  T308]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.548173][  T308] RIP: 0033:0x7f430a908bcb
[   28.548355][  T308] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.548917][  T308] RSP: 002b:00007ffc1bed5628 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   28.549162][  T308] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f430a908bcb
[   28.549400][  T308] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.549641][  T308] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.549902][  T308] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc1bed7850
[   28.550140][  T308] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc1bed8875
| [   28.552475][   T12] ------------[ cut here ]------------
| [   28.552596][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   28.552838][   T12] Modules linked in:
| [   28.553198][   T12] Tainted: [W]=WARN
[   28.553287][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.553438][   T12] Workqueue: netns cleanup_net
[   28.553581][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.553735][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.554625][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   28.554778][   T12] RAX: 00000000ffffffa6 RBX: ff11000012da3000 RCX: 1ff4000000018ed5
[   28.555003][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012da30bc
[   28.555182][   T12] RBP: ff110000020bc000 R08: 1fe22000025b4619 R09: ff11000001aed1d0
[   28.555361][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   28.555535][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.555711][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   28.555971][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.556120][   T12] CR2: 0000558f5a87cd5c CR3: 000000000bc7c004 CR4: 0000000000771ef0
[   28.556299][   T12] PKRU: 55555554
[   28.556391][   T12] Call Trace:
[   28.556480][   T12]  <TASK>
[   28.556541][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.556690][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.556890][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   28.557010][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   28.557135][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   28.557253][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   28.557369][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   28.557488][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   28.557608][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.557726][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.557901][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.558020][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.558140][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.558259][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.558376][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.558497][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.558620][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.558737][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.558910][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.559033][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.559150][   T12]  kthread (kernel/kthread.c:436)
[   28.559239][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.559386][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.559505][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.559623][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.559769][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.559937][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.560056][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.564972][  T308] ------------[ cut here ]------------
| [   28.565152][  T308] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/308
| [   28.565423][  T308] Modules linked in:
| [   28.565894][  T308] Tainted: [W]=WARN
[   28.566038][  T308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.566253][  T308] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.566469][  T308] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.566991][  T308] RSP: 0018:ffa0000000d17918 EFLAGS: 00010286
[   28.567200][  T308] RAX: 00000000ffffffa6 RBX: ff11000009b718c0 RCX: 1ff40000001a2ee9
[   28.567441][  T308] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009b7197c
[   28.567680][  T308] RBP: ff1100000a4a4000 R08: 1fe220000136e331 R09: ff1100000df08b80
[   28.567938][  T308] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   28.568175][  T308] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a4a4000
[   28.568419][  T308] FS:  00007f430a646840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   28.568690][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.568916][  T308] CR2: 00007f430a9bf493 CR3: 000000000e682005 CR4: 0000000000771ef0
[   28.569158][  T308] PKRU: 55555554
[   28.569302][  T308] Call Trace:
[   28.569445][  T308]  <TASK>
[   28.569562][  T308]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.569738][  T308]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.569936][  T308]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.570083][  T308]  register_netdevice (net/core/dev.c:11488)
[   28.570261][  T308]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.570467][  T308]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.570647][  T308]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   28.570846][  T308]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   28.571023][  T308]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   28.571200][  T308]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   28.571376][  T308]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   28.571556][  T308]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   28.571735][  T308]  ops_init (net/core/net_namespace.c:137)
[   28.571900][  T308]  setup_net (net/core/net_namespace.c:446)
[   28.572047][  T308]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.572226][  T308]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.572404][  T308]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.572580][  T308]  copy_net_ns (net/core/net_namespace.c:579)
[   28.572759][  T308]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.572952][  T308]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.573128][  T308]  ksys_unshare (kernel/fork.c:3243)
[   28.573307][  T308]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.573482][  T308]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.573658][  T308]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.573852][  T308]  ? __ia32_sys_open (fs/open.c:1374)
[   28.574032][  T308]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.574209][  T308]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.574385][  T308]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.574562][  T308]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.574742][  T308]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.574941][  T308]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.575146][  T308] RIP: 0033:0x7f430a908bcb
[   28.575326][  T308] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.575847][  T308] RSP: 002b:00007ffc1bed5628 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   28.576088][  T308] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f430a908bcb
[   28.576325][  T308] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.576562][  T308] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.576800][  T308] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc1bed7850
[   28.577058][  T308] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc1bed8875
| [   28.587244][  T308] ------------[ cut here ]------------
| [   28.587422][  T308] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/308
| [   28.587695][  T308] Modules linked in:
| [   28.588863][  T308] Tainted: [W]=WARN
[   28.589073][  T308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.589338][  T308] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.589615][  T308] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.590202][  T308] RSP: 0018:ffa0000000d178f8 EFLAGS: 00010286
[   28.590468][  T308] RAX: 00000000ffffffa6 RBX: ff1100000e5378c0 RCX: 1ff40000001a2ee5
[   28.590763][  T308] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e53797c
[   28.591079][  T308] RBP: ff1100000a3d9000 R08: 1fe2200001ca6f31 R09: ff1100000df08b80
[   28.591374][  T308] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   28.591670][  T308] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a3d9000
[   28.591986][  T308] FS:  00007f430a646840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   28.592317][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.592583][  T308] CR2: 00007f430a9bf493 CR3: 000000000e682005 CR4: 0000000000771ef0
[   28.592898][  T308] PKRU: 55555554
[   28.593096][  T308] Call Trace:
[   28.593294][  T308]  <TASK>
[   28.593462][  T308]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.593694][  T308]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.593940][  T308]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.594141][  T308]  register_netdevice (net/core/dev.c:11488)
[   28.594373][  T308]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.594635][  T308]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.594879][  T308]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   28.595059][  T308]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   28.595239][  T308]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   28.595420][  T308]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   28.595600][  T308]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   28.595780][  T308]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   28.595978][  T308]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   28.596162][  T308]  vti_init_net (net/ipv4/ip_vti.c:517)
[   28.596340][  T308]  ops_init (net/core/net_namespace.c:137)
[   28.596489][  T308]  setup_net (net/core/net_namespace.c:446)
[   28.596636][  T308]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.596815][  T308]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.597011][  T308]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.597190][  T308]  copy_net_ns (net/core/net_namespace.c:579)
[   28.597370][  T308]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.597552][  T308]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.597731][  T308]  ksys_unshare (kernel/fork.c:3243)
[   28.597929][  T308]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.598114][  T308]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.598291][  T308]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.598472][  T308]  ? __ia32_sys_open (fs/open.c:1374)
[   28.598653][  T308]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.598848][  T308]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.599024][  T308]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.599205][  T308]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.599382][  T308]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.599565][  T308]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.599774][  T308] RIP: 0033:0x7f430a908bcb
[   28.599978][  T308] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.600493][  T308] RSP: 002b:00007ffc1bed5628 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   28.600739][  T308] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f430a908bcb
[   28.600999][  T308] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.601239][  T308] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.601479][  T308] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc1bed7850
[   28.601722][  T308] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc1bed8875
| [   28.611863][  T308] ------------[ cut here ]------------
| [   28.612007][  T308] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/308
| [   28.612233][  T308] Modules linked in:
| [   28.612595][  T308] Tainted: [W]=WARN
[   28.612694][  T308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.612882][  T308] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.613053][  T308] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.613515][  T308] RSP: 0018:ffa0000000d17a78 EFLAGS: 00010286
[   28.613680][  T308] RAX: 00000000ffffffa6 RBX: ff110000061ce580 RCX: 1ff40000001a2f15
[   28.613879][  T308] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000061ce63c
[   28.614076][  T308] RBP: ff1100000f149000 R08: 1fe2200000c39cc9 R09: ff1100000df08b80
[   28.614267][  T308] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.614460][  T308] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f149000
[   28.614654][  T308] FS:  00007f430a646840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   28.614892][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.615054][  T308] CR2: 0000558f5a72b130 CR3: 000000000e682006 CR4: 0000000000771ef0
[   28.615249][  T308] PKRU: 55555554
[   28.615345][  T308] Call Trace:
[   28.615442][  T308]  <TASK>
[   28.615511][  T308]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.615643][  T308]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.615776][  T308]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.615884][  T308]  register_netdevice (net/core/dev.c:11488)
[   28.616016][  T308]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.616176][  T308]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.616308][  T308]  register_netdev (net/core/dev.c:11552)
[   28.616437][  T308]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   28.616569][  T308]  ops_init (net/core/net_namespace.c:137)
[   28.616667][  T308]  setup_net (net/core/net_namespace.c:446)
[   28.616767][  T308]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.616906][  T308]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.617036][  T308]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.617168][  T308]  copy_net_ns (net/core/net_namespace.c:579)
[   28.617297][  T308]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.617430][  T308]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.617562][  T308]  ksys_unshare (kernel/fork.c:3243)
[   28.617693][  T308]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.617823][  T308]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.617963][  T308]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.618093][  T308]  ? __ia32_sys_open (fs/open.c:1374)
[   28.618224][  T308]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.618354][  T308]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.618482][  T308]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.618613][  T308]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.618743][  T308]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.618886][  T308]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.619046][  T308] RIP: 0033:0x7f430a908bcb
[   28.619181][  T308] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.619645][  T308] RSP: 002b:00007ffc1bed5628 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   28.619848][  T308] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f430a908bcb
[   28.620040][  T308] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.620232][  T308] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.620426][  T308] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc1bed7850
[   28.620621][  T308] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc1bed8875
| [   28.624633][  T308] ------------[ cut here ]------------
| [   28.624771][  T308] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/308
| [   28.625022][  T308] Modules linked in:
| [   28.625383][  T308] Tainted: [W]=WARN
[   28.625484][  T308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.625647][  T308] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.625815][  T308] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.626290][  T308] RSP: 0018:ffa0000000d17a68 EFLAGS: 00010286
[   28.626456][  T308] RAX: 00000000ffffffa6 RBX: ff110000061cf8c0 RCX: 1ff40000001a2f13
[   28.626647][  T308] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000061cf97c
[   28.626848][  T308] RBP: ff11000009c7c000 R08: 1fe2200000c39f31 R09: ff1100000df08b80
[   28.627042][  T308] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.627236][  T308] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009c7c000
[   28.627431][  T308] FS:  00007f430a646840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   28.627658][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.627821][  T308] CR2: 0000558f5a72b130 CR3: 000000000e682006 CR4: 0000000000771ef0
[   28.628028][  T308] PKRU: 55555554
[   28.628127][  T308] Call Trace:
[   28.628225][  T308]  <TASK>
[   28.628293][  T308]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.628423][  T308]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.628554][  T308]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.628653][  T308]  register_netdevice (net/core/dev.c:11488)
[   28.628784][  T308]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.628962][  T308]  register_netdev (net/core/dev.c:11552)
[   28.629094][  T308]  sit_init_net (net/ipv6/sit.c:1860)
[   28.629227][  T308]  ops_init (net/core/net_namespace.c:137)
[   28.629327][  T308]  setup_net (net/core/net_namespace.c:446)
[   28.629428][  T308]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.629559][  T308]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.629691][  T308]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.629823][  T308]  copy_net_ns (net/core/net_namespace.c:579)
[   28.629965][  T308]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.630098][  T308]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.630229][  T308]  ksys_unshare (kernel/fork.c:3243)
[   28.630360][  T308]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.630494][  T308]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.630624][  T308]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.630755][  T308]  ? __ia32_sys_open (fs/open.c:1374)
[   28.630900][  T308]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.631030][  T308]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.631160][  T308]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.631290][  T308]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.631418][  T308]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.631548][  T308]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.631710][  T308] RIP: 0033:0x7f430a908bcb
[   28.631850][  T308] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.632311][  T308] RSP: 002b:00007ffc1bed5628 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   28.632505][  T308] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f430a908bcb
[   28.632698][  T308] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.632908][  T308] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.633106][  T308] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc1bed7850
[   28.633298][  T308] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc1bed8875
| [   28.637575][  T308] ------------[ cut here ]------------
| [   28.637710][  T308] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/308
| [   28.637940][  T308] Modules linked in:
| [   28.638303][  T308] Tainted: [W]=WARN
[   28.638402][  T308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.638566][  T308] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.638736][  T308] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.639204][  T308] RSP: 0018:ffa0000000d17a78 EFLAGS: 00010286
[   28.639368][  T308] RAX: 00000000ffffffa6 RBX: ff1100000b3a2e40 RCX: 1ff40000001a2f15
[   28.639562][  T308] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b3a2efc
[   28.639758][  T308] RBP: ff1100000fdd4000 R08: 1fe22000016745e1 R09: ff1100000df08b80
[   28.639964][  T308] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.640157][  T308] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fdd4000
[   28.640354][  T308] FS:  00007f430a646840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   28.640583][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.640754][  T308] CR2: 0000558f5a72b130 CR3: 000000000e682006 CR4: 0000000000771ef0
[   28.640960][  T308] PKRU: 55555554
[   28.641058][  T308] Call Trace:
[   28.641156][  T308]  <TASK>
[   28.641225][  T308]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.641356][  T308]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.641486][  T308]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.641586][  T308]  register_netdevice (net/core/dev.c:11488)
[   28.641717][  T308]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   28.641890][  T308]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.642024][  T308]  register_netdev (net/core/dev.c:11552)
[   28.642155][  T308]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   28.642288][  T308]  ops_init (net/core/net_namespace.c:137)
[   28.642388][  T308]  setup_net (net/core/net_namespace.c:446)
[   28.642488][  T308]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   28.642619][  T308]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   28.642751][  T308]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   28.642896][  T308]  copy_net_ns (net/core/net_namespace.c:579)
[   28.643028][  T308]  create_new_namespaces (kernel/nsproxy.c:132)
[   28.643163][  T308]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   28.643297][  T308]  ksys_unshare (kernel/fork.c:3243)
[   28.643431][  T308]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.643562][  T308]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   28.643691][  T308]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   28.643823][  T308]  ? __ia32_sys_open (fs/open.c:1374)
[   28.643967][  T308]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   28.644097][  T308]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.644229][  T308]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.644359][  T308]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.644491][  T308]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.644622][  T308]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.644783][  T308] RIP: 0033:0x7f430a908bcb
[   28.644926][  T308] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   28.645392][  T308] RSP: 002b:00007ffc1bed5628 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   28.645589][  T308] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f430a908bcb
[   28.645782][  T308] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   28.645990][  T308] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   28.646184][  T308] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc1bed7850
[   28.646381][  T308] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc1bed8875
| [   28.759155][  T311] ------------[ cut here ]------------
| [   28.759374][  T311] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/311
| [   28.759662][  T311] Modules linked in:
| [   28.760162][  T311] Tainted: [W]=WARN
[   28.760311][  T311] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.760529][  T311] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.760757][  T311] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.761298][  T311] RSP: 0018:ffa0000000d36e30 EFLAGS: 00010286
[   28.761514][  T311] RAX: 00000000ffffffa6 RBX: ff1100000c83ce40 RCX: 1ff40000001a6d8c
[   28.761766][  T311] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c83cefc
[   28.762036][  T311] RBP: ff1100000e461000 R08: 1fe22000019079e1 R09: ff1100000f80ae80
[   28.762286][  T311] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   28.762535][  T311] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000b925910
[   28.762788][  T311] FS:  00007f3224380840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   28.763092][  T311] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.763308][  T311] CR2: 000000000042ebe0 CR3: 000000000b9f4003 CR4: 0000000000771ef0
[   28.763559][  T311] PKRU: 55555554
[   28.763707][  T311] Call Trace:
[   28.763872][  T311]  <TASK>
[   28.763992][  T311]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.764181][  T311]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.764334][  T311]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   28.764550][  T311]  __dev_notify_flags (net/core/dev.c:9787)
[   28.764736][  T311]  ? netif_change_name (net/core/dev.c:1495)
[   28.764939][  T311]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   28.765127][  T311]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   28.765309][  T311]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   28.765494][  T311]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   28.765678][  T311]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.765881][  T311]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   28.766067][  T311]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   28.766248][  T311]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.766434][  T311]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   28.766619][  T311]  veth_newlink (drivers/net/veth.c:1871)
[   28.766804][  T311]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   28.767004][  T311]  ? kasan_save_stack (mm/kasan/common.c:57)
[   28.767190][  T311]  ? kasan_save_track (mm/kasan/common.c:78)
[   28.767373][  T311]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   28.767573][  T311]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   28.767759][  T311]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   28.767964][  T311]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   28.768152][  T311]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.768335][  T311]  ? rtnl_create_link (net/core/rtnetlink.c:3733)
[   28.768520][  T311]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   28.768705][  T311]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   28.768906][  T311]  ? __dev_get_by_name (net/core/dev.c:883)
[   28.769097][  T311]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   28.769286][  T311]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   28.769473][  T311]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   28.769658][  T311]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.769876][  T311]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.770062][  T311]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.770243][  T311]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   28.770427][  T311]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.770618][  T311]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.770801][  T311]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.771001][  T311]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   28.771185][  T311]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.771367][  T311]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.771549][  T311]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.771733][  T311]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.771934][  T311]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.772125][  T311]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   28.772308][  T311]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.772492][  T311]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.772677][  T311]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   28.772878][  T311]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   28.773064][  T311]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.773247][  T311]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.773433][  T311]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.773619][  T311]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   28.773803][  T311]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   28.774005][  T311]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   28.774190][  T311]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   28.774373][  T311]  ? copy_msghdr_from_user (net/socket.c:2635)
[   28.774553][  T311]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   28.774764][  T311]  ? move_addr_to_kernel (net/socket.c:258)
[   28.774974][  T311]  ___sys_sendmsg (net/socket.c:2752)
[   28.775159][  T311]  ? copy_msghdr_from_user (net/socket.c:2603)
[   28.775344][  T311]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.775564][  T311]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   28.775747][  T311]  __sys_sendmsg (net/socket.c:2784)
[   28.775949][  T311]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   28.776134][  T311]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   28.776319][  T311]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.776505][  T311]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.776687][  T311]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.776885][  T311]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.777069][  T311]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.777283][  T311] RIP: 0033:0x7f32245ba08e
[   28.777475][  T311] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   28.778015][  T311] RSP: 002b:00007fff36613c70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.778266][  T311] RAX: ffffffffffffffda RBX: 00007fff36614428 RCX: 00007f32245ba08e
[   28.778513][  T311] RDX: 0000000000000000 RSI: 00007fff36613d20 RDI: 0000000000000005
[   28.778763][  T311] RBP: 00007fff36613c80 R08: 0000000000000000 R09: 0000000000000000
[   28.779028][  T311] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3cb
[   28.779277][  T311] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff366143e0
| [   28.789428][  T311] ------------[ cut here ]------------
| [   28.789579][  T311] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/311
| [   28.789812][  T311] Modules linked in:
| [   28.790226][  T311] Tainted: [W]=WARN
[   28.790328][  T311] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.790496][  T311] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.790670][  T311] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.791157][  T311] RSP: 0018:ffa0000000d371b0 EFLAGS: 00010286
[   28.791327][  T311] RAX: 00000000ffffffa6 RBX: ff1100000583f8c0 RCX: 1ff40000001a6dfc
[   28.791526][  T311] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000583f97c
[   28.791723][  T311] RBP: ff1100000c529000 R08: 1fe2200000b07f31 R09: ff1100000f80ae80
[   28.791934][  T311] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   28.792133][  T311] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa8c03b20
[   28.792331][  T311] FS:  00007f3224380840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   28.792563][  T311] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.792731][  T311] CR2: 00007f827bf3e2a0 CR3: 000000000b9f4005 CR4: 0000000000771ef0
[   28.792942][  T311] PKRU: 55555554
[   28.793042][  T311] Call Trace:
[   28.793145][  T311]  <TASK>
[   28.793215][  T311]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.793351][  T311]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.793452][  T311]  __dev_notify_flags (net/core/dev.c:9787)
[   28.793586][  T311]  ? netif_change_name (net/core/dev.c:1495)
[   28.793721][  T311]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   28.793865][  T311]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   28.794000][  T311]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   28.794136][  T311]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   28.794270][  T311]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   28.794404][  T311]  ? __dev_get_by_name (net/core/dev.c:883)
[   28.794534][  T311]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   28.794672][  T311]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   28.794811][  T311]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   28.794955][  T311]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.795086][  T311]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.795217][  T311]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.795350][  T311]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   28.795482][  T311]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.795618][  T311]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.795753][  T311]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.795897][  T311]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   28.796030][  T311]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.796163][  T311]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.796295][  T311]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.796429][  T311]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.796561][  T311]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.796696][  T311]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   28.796839][  T311]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.796972][  T311]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.797108][  T311]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   28.797240][  T311]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   28.797375][  T311]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.797509][  T311]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.797642][  T311]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.797777][  T311]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   28.797922][  T311]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   28.798058][  T311]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   28.798193][  T311]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   28.798326][  T311]  ? copy_msghdr_from_user (net/socket.c:2635)
[   28.798460][  T311]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   28.798626][  T311]  ? move_addr_to_kernel (net/socket.c:258)
[   28.798764][  T311]  ___sys_sendmsg (net/socket.c:2752)
[   28.798911][  T311]  ? copy_msghdr_from_user (net/socket.c:2603)
[   28.799049][  T311]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.799221][  T311]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   28.799358][  T311]  __sys_sendmsg (net/socket.c:2784)
[   28.799492][  T311]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   28.799628][  T311]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   28.799761][  T311]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.799909][  T311]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.800045][  T311]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.800178][  T311]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.800311][  T311]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.800508][  T311] RIP: 0033:0x7f32245ba08e
[   28.800649][  T311] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   28.801134][  T311] RSP: 002b:00007fff36613c70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.801336][  T311] RAX: ffffffffffffffda RBX: 00007fff36614428 RCX: 00007f32245ba08e
[   28.801535][  T311] RDX: 0000000000000000 RSI: 00007fff36613d20 RDI: 0000000000000005
[   28.801736][  T311] RBP: 00007fff36613c80 R08: 0000000000000000 R09: 0000000000000000
[   28.801946][  T311] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3cb
[   28.802146][  T311] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff366143e0
| [   28.828817][  T312] ------------[ cut here ]------------
| [   28.828985][  T312] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/312
| [   28.829217][  T312] Modules linked in:
| [   28.829590][  T312] Tainted: [W]=WARN
[   28.829687][  T312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.829860][  T312] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.830030][  T312] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.830492][  T312] RSP: 0018:ffa0000000c37020 EFLAGS: 00010286
[   28.830655][  T312] RAX: 00000000ffffffa6 RBX: ff1100000583f380 RCX: 1ff4000000186dca
[   28.830861][  T312] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000583f43c
[   28.831057][  T312] RBP: ff1100000c529000 R08: 1fe2200000b07e89 R09: ff1100000f80d158
[   28.831250][  T312] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   28.831441][  T312] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   28.831635][  T312] FS:  00007fde0448b840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   28.831875][  T312] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.832038][  T312] CR2: 0000000031e60988 CR3: 00000000129d4001 CR4: 0000000000771ef0
[   28.832235][  T312] PKRU: 55555554
[   28.832334][  T312] Call Trace:
[   28.832431][  T312]  <TASK>
[   28.832501][  T312]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.832634][  T312]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.832733][  T312]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   28.832874][  T312]  __dev_notify_flags (net/core/dev.c:9787)
[   28.833005][  T312]  ? netif_change_name (net/core/dev.c:1495)
[   28.833135][  T312]  ? __dev_change_flags (net/core/dev.c:9752)
[   28.833266][  T312]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   28.833397][  T312]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.833528][  T312]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   28.833662][  T312]  netif_change_flags (net/core/dev.c:9820)
[   28.833793][  T312]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   28.833933][  T312]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   28.834066][  T312]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   28.834197][  T312]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   28.834360][  T312]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.834492][  T312]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.834622][  T312]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   28.834753][  T312]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.834898][  T312]  ? __kernel_text_address (kernel/extable.c:79)
[   28.835030][  T312]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.835163][  T312]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.835295][  T312]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   28.835427][  T312]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.835557][  T312]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.835685][  T312]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.835815][  T312]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.835956][  T312]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   28.836087][  T312]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   28.836220][  T312]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   28.836352][  T312]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   28.836484][  T312]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   28.836616][  T312]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   28.836751][  T312]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   28.836893][  T312]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.837022][  T312]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.837154][  T312]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.837285][  T312]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   28.837415][  T312]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.837547][  T312]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.837675][  T312]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.837803][  T312]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.837943][  T312]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.838074][  T312]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.838204][  T312]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   28.838336][  T312]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.838465][  T312]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.838594][  T312]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.838725][  T312]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.838863][  T312]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.838993][  T312]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   28.839123][  T312]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.839252][  T312]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.839387][  T312]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   28.839516][  T312]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   28.839645][  T312]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.839775][  T312]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.839912][  T312]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.840043][  T312]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   28.840174][  T312]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   28.840308][  T312]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   28.840439][  T312]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   28.840569][  T312]  ? copy_msghdr_from_user (net/socket.c:2635)
[   28.840699][  T312]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   28.840870][  T312]  ? move_addr_to_kernel (net/socket.c:258)
[   28.841000][  T312]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.841129][  T312]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.841264][  T312]  ___sys_sendmsg (net/socket.c:2752)
[   28.841392][  T312]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   28.841555][  T312]  ? copy_msghdr_from_user (net/socket.c:2603)
[   28.841696][  T312]  __sys_sendmsg (net/socket.c:2784)
[   28.841826][  T312]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   28.841967][  T312]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   28.842131][  T312]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   28.842264][  T312]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.842395][  T312]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.842525][  T312]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.842655][  T312]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.842785][  T312]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.842957][  T312] RIP: 0033:0x7fde046c508e
[   28.843093][  T312] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   28.843558][  T312] RSP: 002b:00007fff6cb5c830 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.843754][  T312] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fde046c508e
[   28.843961][  T312] RDX: 0000000000000000 RSI: 00007fff6cb5c8e0 RDI: 0000000000000005
[   28.844156][  T312] RBP: 00007fff6cb5c840 R08: 0000000000000000 R09: 0000000000000000
[   28.844350][  T312] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3cc
[   28.844545][  T312] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff6cb5cfb0
| [   28.875641][  T313] ------------[ cut here ]------------
| [   28.875849][  T313] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/313
| [   28.876136][  T313] Modules linked in:
| [   28.876595][  T313] Tainted: [W]=WARN
[   28.876741][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.876972][  T313] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.877191][  T313] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.877700][  T313] RSP: 0018:ffa0000000d47020 EFLAGS: 00010286
[   28.877927][  T313] RAX: 00000000ffffffa6 RBX: ff11000009028200 RCX: 1ff40000001a8dca
[   28.878170][  T313] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000090282bc
[   28.878412][  T313] RBP: ff1100000e461000 R08: 1fe2200001205059 R09: ff1100000f955158
[   28.878654][  T313] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   28.878978][  T313] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   28.879292][  T313] FS:  00007ff3fa452840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   28.879619][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.879936][  T313] CR2: 00007ff3fa7221a0 CR3: 000000000b2fd006 CR4: 0000000000771ef0
[   28.880269][  T313] PKRU: 55555554
[   28.880479][  T313] Call Trace:
[   28.880712][  T313]  <TASK>
[   28.880912][  T313]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.881176][  T313]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.881350][  T313]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   28.881525][  T313]  __dev_notify_flags (net/core/dev.c:9787)
[   28.881705][  T313]  ? netif_change_name (net/core/dev.c:1495)
[   28.881901][  T313]  ? __dev_change_flags (net/core/dev.c:9752)
[   28.882080][  T313]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   28.882260][  T313]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.882439][  T313]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   28.882620][  T313]  netif_change_flags (net/core/dev.c:9820)
[   28.882798][  T313]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   28.883010][  T313]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   28.883199][  T313]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   28.883381][  T313]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   28.883589][  T313]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.883767][  T313]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.883963][  T313]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   28.884144][  T313]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.884323][  T313]  ? __kernel_text_address (kernel/extable.c:79)
[   28.884500][  T313]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.884684][  T313]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.884880][  T313]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   28.885062][  T313]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.885240][  T313]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.885419][  T313]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.885598][  T313]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.885777][  T313]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   28.885974][  T313]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   28.886155][  T313]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   28.886333][  T313]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   28.886514][  T313]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   28.886694][  T313]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   28.886890][  T313]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   28.887071][  T313]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.887247][  T313]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.887425][  T313]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.887606][  T313]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   28.887785][  T313]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.887983][  T313]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.888158][  T313]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.888336][  T313]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.888513][  T313]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.888692][  T313]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.888887][  T313]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   28.889066][  T313]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.889242][  T313]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.889419][  T313]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.889599][  T313]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.889774][  T313]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.889971][  T313]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   28.890151][  T313]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.890333][  T313]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.890513][  T313]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   28.890689][  T313]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   28.890886][  T313]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.891068][  T313]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.891246][  T313]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.891424][  T313]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   28.891607][  T313]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   28.891786][  T313]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   28.891983][  T313]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   28.892161][  T313]  ? copy_msghdr_from_user (net/socket.c:2635)
[   28.892336][  T313]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   28.892545][  T313]  ? move_addr_to_kernel (net/socket.c:258)
[   28.892724][  T313]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.892919][  T313]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.893099][  T313]  ___sys_sendmsg (net/socket.c:2752)
[   28.893293][  T313]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   28.893501][  T313]  ? copy_msghdr_from_user (net/socket.c:2603)
[   28.893691][  T313]  __sys_sendmsg (net/socket.c:2784)
[   28.893887][  T313]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   28.894063][  T313]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   28.894274][  T313]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   28.894456][  T313]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.894636][  T313]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.894812][  T313]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.895006][  T313]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.895184][  T313]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.895393][  T313] RIP: 0033:0x7ff3fa68c08e
[   28.895577][  T313] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   28.896109][  T313] RSP: 002b:00007ffec5193160 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.896353][  T313] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff3fa68c08e
[   28.896592][  T313] RDX: 0000000000000000 RSI: 00007ffec5193210 RDI: 0000000000000005
[   28.896853][  T313] RBP: 00007ffec5193170 R08: 0000000000000000 R09: 0000000000000000
[   28.897095][  T313] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3cc
[   28.897336][  T313] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffec51938e0
| [   28.899785][   T71] ------------[ cut here ]------------
| [   28.899980][   T71] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/71
| [   28.900263][   T71] Modules linked in:
| [   28.900719][   T71] Tainted: [W]=WARN
[   28.900876][   T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.901071][   T71] Workqueue: events_unbound linkwatch_event
[   28.901273][   T71] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.901483][   T71] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.902058][   T71] RSP: 0018:ffa00000004c79e0 EFLAGS: 00010286
[   28.902307][   T71] RAX: 00000000ffffffa6 RBX: ff1100000b3a3c40 RCX: 1ff4000000098f02
[   28.902596][   T71] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b3a3cfc
[   28.902964][   T71] RBP: ff1100000c529000 R08: 1fe22000016747a1 R09: ff11000009222ea8
[   28.903231][   T71] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   28.903505][   T71] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.903737][   T71] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   28.904003][   T71] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.904199][   T71] CR2: 00007ff3fa7221a0 CR3: 000000003174d004 CR4: 0000000000771ef0
[   28.904422][   T71] PKRU: 55555554
[   28.904561][   T71] Call Trace:
[   28.904697][   T71]  <TASK>
[   28.904805][   T71]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.904990][   T71]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.905160][   T71]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.905300][   T71]  netif_state_change (net/core/dev.c:1605)
[   28.905468][   T71]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   28.905666][   T71]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   28.905851][   T71]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   28.906019][   T71]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.906189][   T71]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   28.906359][   T71]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   28.906527][   T71]  process_one_work (kernel/workqueue.c:3314)
[   28.906698][   T71]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.906881][   T71]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.907053][   T71]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.907228][   T71]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.907395][   T71]  kthread (kernel/kthread.c:436)
[   28.907533][   T71]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.907730][   T71]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.907914][   T71]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.908083][   T71]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.908280][   T71]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.908448][   T71]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.908615][   T71]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.936730][  T314] ------------[ cut here ]------------
| [   28.937523][  T314] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/314
| [   28.937920][  T314] Modules linked in:
| [   28.938540][  T314] Tainted: [W]=WARN
[   28.938740][  T314] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.938976][  T314] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.939203][  T314] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.939724][  T314] RSP: 0018:ffa0000000d47050 EFLAGS: 00010286
[   28.939949][  T314] RAX: 00000000ffffffa6 RBX: ff1100000b37e040 RCX: 1ff40000001a8dd0
[   28.940190][  T314] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b37e0fc
[   28.940431][  T314] RBP: ff1100000c529000 R08: 1fe220000166fc21 R09: ff1100000f720b80
[   28.940668][  T314] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   28.940931][  T314] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   28.941177][  T314] FS:  00007ff438711840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   28.941450][  T314] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.941658][  T314] CR2: 00007ff4389e11a0 CR3: 000000000558e002 CR4: 0000000000771ef0
[   28.941919][  T314] PKRU: 55555554
[   28.942064][  T314] Call Trace:
[   28.942208][  T314]  <TASK>
[   28.942322][  T314]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.942499][  T314]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   28.942680][  T314]  notifier_call_chain (kernel/notifier.c:85)
[   28.942880][  T314]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   28.943059][  T314]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.943240][  T314]  ? netif_set_group (net/core/dev.c:9947)
[   28.943421][  T314]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   28.943630][  T314]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   28.943810][  T314]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   28.944007][  T314]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   28.944187][  T314]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   28.944397][  T314]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.944577][  T314]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.944756][  T314]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   28.944951][  T314]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.945130][  T314]  ? __kernel_text_address (kernel/extable.c:79)
[   28.945308][  T314]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.945490][  T314]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.945668][  T314]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   28.945870][  T314]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.946049][  T314]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.946225][  T314]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.946403][  T314]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.946583][  T314]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   28.946763][  T314]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   28.946959][  T314]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   28.947143][  T314]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   28.947329][  T314]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   28.947510][  T314]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   28.947691][  T314]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.947885][  T314]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.948065][  T314]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.948242][  T314]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   28.948420][  T314]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.948600][  T314]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.948779][  T314]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.948976][  T314]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.949155][  T314]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.949333][  T314]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   28.949510][  T314]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   28.949690][  T314]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.949885][  T314]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.950065][  T314]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.950244][  T314]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.950420][  T314]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.950600][  T314]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   28.950778][  T314]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.950973][  T314]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.951155][  T314]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   28.951331][  T314]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   28.951515][  T314]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.951694][  T314]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.951887][  T314]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.952066][  T314]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   28.952245][  T314]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   28.952423][  T314]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   28.952602][  T314]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   28.952779][  T314]  ? copy_msghdr_from_user (net/socket.c:2635)
[   28.952977][  T314]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   28.953184][  T314]  ? move_addr_to_kernel (net/socket.c:258)
[   28.953365][  T314]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.953550][  T314]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.953730][  T314]  ___sys_sendmsg (net/socket.c:2752)
[   28.953917][  T314]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   28.954130][  T314]  ? copy_msghdr_from_user (net/socket.c:2603)
[   28.954320][  T314]  __sys_sendmsg (net/socket.c:2784)
[   28.954504][  T314]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   28.954680][  T314]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   28.954908][  T314]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   28.955086][  T314]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.955264][  T314]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.955441][  T314]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.955621][  T314]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.955800][  T314]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.956026][  T314] RIP: 0033:0x7ff43894b08e
[   28.956209][  T314] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   28.956721][  T314] RSP: 002b:00007ffcb91b3dd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.956984][  T314] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff43894b08e
[   28.957225][  T314] RDX: 0000000000000000 RSI: 00007ffcb91b3e80 RDI: 0000000000000005
[   28.957463][  T314] RBP: 00007ffcb91b3de0 R08: 0000000000000000 R09: 0000000000000000
[   28.957706][  T314] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3cd
[   28.957963][  T314] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcb91b4550
| [   28.984330][  T315] ------------[ cut here ]------------
| [   28.984474][  T315] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/315
| [   28.984700][  T315] Modules linked in:
| [   28.985740][  T315] Tainted: [W]=WARN
[   28.985900][  T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.986063][  T315] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.986290][  T315] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.986753][  T315] RSP: 0018:ffa0000000d57150 EFLAGS: 00010286
[   28.986979][  T315] RAX: 00000000ffffffa6 RBX: ff1100000b37f540 RCX: 1ff40000001aadf0
[   28.987171][  T315] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b37f5fc
[   28.987366][  T315] RBP: ff1100000e461000 R08: 1fe220000166fec1 R09: ff1100000f42d158
[   28.987558][  T315] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   28.987750][  T315] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ceef4c0
[   28.987955][  T315] FS:  00007f5660835840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   28.988184][  T315] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.988346][  T315] CR2: 00000000004ebb20 CR3: 000000000bd12003 CR4: 0000000000771ef0
[   28.988541][  T315] PKRU: 55555554
[   28.988638][  T315] Call Trace:
[   28.988735][  T315]  <TASK>
[   28.988803][  T315]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.988942][  T315]  ? notifier_call_chain (kernel/notifier.c:85)
[   28.989073][  T315]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.989172][  T315]  netif_state_change (net/core/dev.c:1605)
[   28.989304][  T315]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   28.989466][  T315]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   28.989630][  T315]  linkwatch_sync_dev (net/core/link_watch.c:295)
[   28.989759][  T315]  rtnl_getlink (net/core/rtnetlink.c:4273)
[   28.989895][  T315]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.990024][  T315]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.990152][  T315]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   28.990280][  T315]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   28.990408][  T315]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.990537][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.990682][  T315]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.990809][  T315]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.990948][  T315]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   28.991076][  T315]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.991205][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.991337][  T315]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.991467][  T315]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   28.991594][  T315]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   28.991723][  T315]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.991866][  T315]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.991995][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.992126][  T315]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.992253][  T315]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.992382][  T315]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   28.992509][  T315]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.992638][  T315]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.992772][  T315]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   28.992910][  T315]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   28.993041][  T315]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.993171][  T315]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.993299][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.993429][  T315]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   28.993561][  T315]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   28.993691][  T315]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   28.993822][  T315]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   28.993960][  T315]  ? copy_msghdr_from_user (net/socket.c:2635)
[   28.994090][  T315]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   28.994248][  T315]  ? move_addr_to_kernel (net/socket.c:258)
[   28.994378][  T315]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.994508][  T315]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   28.994667][  T315]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.994796][  T315]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   28.994965][  T315]  ___sys_sendmsg (net/socket.c:2752)
[   28.995094][  T315]  ? copy_msghdr_from_user (net/socket.c:2603)
[   28.995220][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.995356][  T315]  ? move_addr_to_user (./include/linux/uaccess.h:236 net/socket.c:302)
[   28.995485][  T315]  ? do_getsockname (net/socket.c:2192)
[   28.995614][  T315]  __sys_sendmsg (net/socket.c:2784)
[   28.995742][  T315]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   28.995881][  T315]  ? __sys_getsockname (net/socket.c:2210)
[   28.996010][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.996139][  T315]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.996267][  T315]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.996395][  T315]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.996523][  T315]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.996682][  T315] RIP: 0033:0x7f5660a6f08e
[   28.996820][  T315] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   28.997287][  T315] RSP: 002b:00007ffeb2b07220 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.997481][  T315] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5660a6f08e
[   28.997677][  T315] RDX: 0000000000000000 RSI: 00007ffeb2b072d0 RDI: 0000000000000006
[   28.997881][  T315] RBP: 00007ffeb2b07230 R08: 0000000000000000 R09: 0000000000000000
[   28.998073][  T315] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3cc
[   28.998264][  T315] R13: 00007ffeb2b07380 R14: 0000000000000000 R15: 0000000000000004
| [   29.000598][  T315] ------------[ cut here ]------------
| [   29.000736][  T315] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/315
| [   29.001431][  T315] Modules linked in:
| [   29.001849][  T315] Tainted: [W]=WARN
[   29.001951][  T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.002128][  T315] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.002299][  T315] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.002781][  T315] RSP: 0018:ffa0000000d57050 EFLAGS: 00010286
[   29.002954][  T315] RAX: 00000000ffffffa6 RBX: ff1100000c054200 RCX: 1ff40000001aadd0
[   29.003151][  T315] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c0542bc
[   29.003345][  T315] RBP: ff1100000e461000 R08: 1fe220000180a859 R09: ff1100000f42d180
[   29.003538][  T315] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   29.003733][  T315] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   29.003938][  T315] FS:  00007f5660835840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   29.004163][  T315] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.004325][  T315] CR2: 00000000284c2988 CR3: 000000000bd12003 CR4: 0000000000771ef0
[   29.004520][  T315] PKRU: 55555554
[   29.004616][  T315] Call Trace:
[   29.004711][  T315]  <TASK>
[   29.004778][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.004917][  T315]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   29.005046][  T315]  notifier_call_chain (kernel/notifier.c:85)
[   29.005180][  T315]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   29.005311][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.005442][  T315]  ? netif_set_group (net/core/dev.c:9947)
[   29.005573][  T315]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   29.005734][  T315]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   29.005875][  T315]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   29.006009][  T315]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   29.006163][  T315]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   29.006325][  T315]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.006456][  T315]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   29.006587][  T315]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   29.006716][  T315]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   29.006856][  T315]  ? __kernel_text_address (kernel/extable.c:79)
[   29.006985][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   29.007118][  T315]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.007248][  T315]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   29.007379][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.007509][  T315]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.007637][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.007765][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.007902][  T315]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   29.008034][  T315]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   29.008165][  T315]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   29.008295][  T315]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   29.008429][  T315]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   29.008562][  T315]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   29.008694][  T315]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.008822][  T315]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   29.008960][  T315]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   29.009091][  T315]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   29.009221][  T315]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.009354][  T315]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.009483][  T315]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   29.009612][  T315]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   29.009742][  T315]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.009879][  T315]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   29.010010][  T315]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   29.010143][  T315]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   29.010271][  T315]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.010399][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   29.010531][  T315]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.010659][  T315]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   29.010790][  T315]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   29.010928][  T315]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.011059][  T315]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.011195][  T315]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   29.011324][  T315]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   29.011456][  T315]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.011585][  T315]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.011716][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   29.011854][  T315]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   29.011986][  T315]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   29.012120][  T315]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   29.012251][  T315]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   29.012380][  T315]  ? copy_msghdr_from_user (net/socket.c:2635)
[   29.012509][  T315]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   29.012669][  T315]  ? move_addr_to_kernel (net/socket.c:258)
[   29.012800][  T315]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   29.012943][  T315]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   29.013076][  T315]  ___sys_sendmsg (net/socket.c:2752)
[   29.013205][  T315]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   29.013366][  T315]  ? copy_msghdr_from_user (net/socket.c:2603)
[   29.013509][  T315]  __sys_sendmsg (net/socket.c:2784)
[   29.013639][  T315]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   29.013768][  T315]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   29.013939][  T315]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   29.014072][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.014202][  T315]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   29.014331][  T315]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   29.014464][  T315]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   29.014594][  T315]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.014755][  T315] RIP: 0033:0x7f5660a6f08e
[   29.014899][  T315] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   29.015364][  T315] RSP: 002b:00007ffeb2b08ea0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.015559][  T315] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f5660a6f08e
[   29.015752][  T315] RDX: 0000000000000000 RSI: 00007ffeb2b08f50 RDI: 0000000000000005
[   29.015955][  T315] RBP: 00007ffeb2b08eb0 R08: 0000000000000000 R09: 0000000000000000
[   29.016147][  T315] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3cd
[   29.016341][  T315] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffeb2b09620
| [   32.015276][   T12] ------------[ cut here ]------------
| [   32.015465][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   32.015707][   T12] Modules linked in:
| [   32.016098][   T12] Tainted: [W]=WARN
[   32.016190][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.016346][   T12] Workqueue: netns cleanup_net
[   32.016471][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.016639][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.017083][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.017262][   T12] RAX: 00000000ffffffa6 RBX: ff11000011b73000 RCX: 1ff4000000018eed
[   32.017444][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000011b730bc
[   32.017626][   T12] RBP: ff1100000fdd4000 R08: 1fe220000236e619 R09: ff11000001aed1d0
[   32.017803][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   32.017990][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.018172][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   32.018381][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.018533][   T12] CR2: 0000558f5a87cd5c CR3: 000000000bc7c001 CR4: 0000000000771ef0
[   32.018710][   T12] PKRU: 55555554
[   32.018803][   T12] Call Trace:
[   32.018902][   T12]  <TASK>
[   32.018964][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.019119][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.019271][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.019390][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.019513][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.019634][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.019756][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.019965][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.020087][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.020203][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.020327][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.020446][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.020563][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.020687][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.020806][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.020938][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.021063][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.021182][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.021309][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.021432][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.021549][   T12]  kthread (kernel/kthread.c:436)
[   32.021640][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.021789][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.021917][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.022036][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.022185][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.022304][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.022422][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.024701][   T12] ------------[ cut here ]------------
| [   32.024826][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   32.025071][   T12] Modules linked in:
| [   32.025434][   T12] Tainted: [W]=WARN
[   32.025523][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.025674][   T12] Workqueue: netns cleanup_net
[   32.025799][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.025964][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.026387][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.026537][   T12] RAX: 00000000ffffffa6 RBX: ff11000011b72c80 RCX: 1ff4000000018eed
[   32.026714][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000011b72d3c
[   32.026899][   T12] RBP: ff11000009c7c000 R08: 1fe220000236e5a9 R09: ff11000001aed1d0
[   32.027074][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   32.027253][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.027431][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   32.027642][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.027790][   T12] CR2: 0000558f5a87cd5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   32.027976][   T12] PKRU: 55555554
[   32.028063][   T12] Call Trace:
[   32.028151][   T12]  <TASK>
[   32.028212][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.028362][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.028506][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.028625][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.028744][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.028869][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.028986][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.029104][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.029224][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.029344][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.029466][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.029588][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.029704][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.029828][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.029954][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.030073][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.030195][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.030315][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.030440][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.030562][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.030679][   T12]  kthread (kernel/kthread.c:436)
[   32.030769][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.030957][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.031075][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.031196][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.031345][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.031466][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.031585][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.034569][   T12] ------------[ cut here ]------------
| [   32.034761][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   32.035005][   T12] Modules linked in:
| [   32.035437][   T12] Tainted: [W]=WARN
[   32.035527][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.035673][   T12] Workqueue: netns cleanup_net
[   32.035882][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.036035][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.036539][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.036688][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c544580 RCX: 1ff4000000018eed
[   32.036948][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c54463c
[   32.037127][   T12] RBP: ff1100000f149000 R08: 1fe22000018a88c9 R09: ff11000001aed1d0
[   32.037310][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   32.037569][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.037745][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   32.037964][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.038184][   T12] CR2: 0000558f5a87cd5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   32.038359][   T12] PKRU: 55555554
[   32.038447][   T12] Call Trace:
[   32.038536][   T12]  <TASK>
[   32.038667][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.038818][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.038969][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.039088][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.039276][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.039398][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.039516][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.039640][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.039837][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.039959][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.040083][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.040203][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.040393][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.040517][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.040634][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.040756][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.040972][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.041089][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.041212][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.041335][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.041524][   T12]  kthread (kernel/kthread.c:436)
[   32.041612][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.041758][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.041955][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.042074][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.042223][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.042341][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.042533][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.045013][   T12] ------------[ cut here ]------------
| [   32.045129][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   32.045429][   T12] Modules linked in:
| [   32.045789][   T12] Tainted: [W]=WARN
[   32.045959][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.046110][   T12] Workqueue: netns cleanup_net
[   32.046233][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.046387][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.046912][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.047134][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c544900 RCX: 1ff4000000018eed
[   32.047320][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c5449bc
[   32.047498][   T12] RBP: ff1100000a3d9000 R08: 1fe22000018a8939 R09: ff11000001aed1d0
[   32.047743][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   32.047927][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.048103][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   32.048382][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.048532][   T12] CR2: 0000558f5a87cd5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   32.048788][   T12] PKRU: 55555554
[   32.048885][   T12] Call Trace:
[   32.048971][   T12]  <TASK>
[   32.049036][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.049186][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.049404][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.049524][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.049643][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.049764][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.049963][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.050082][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.050214][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.050331][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.050522][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.050642][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.050762][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.050892][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.051078][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.051200][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.051323][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.051441][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.051638][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.051760][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.051894][   T12]  kthread (kernel/kthread.c:436)
[   32.051983][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.052199][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.052315][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.052439][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.052584][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.052770][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.052895][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.055386][   T12] ------------[ cut here ]------------
| [   32.055507][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   32.055737][   T12] Modules linked in:
| [   32.056102][   T12] Tainted: [W]=WARN
[   32.056191][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.056337][   T12] Workqueue: netns cleanup_net
[   32.056463][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.056616][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.057045][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.057199][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c544c80 RCX: 1ff4000000018eed
[   32.057379][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c544d3c
[   32.057560][   T12] RBP: ff1100000a4a4000 R08: 1fe22000018a89a9 R09: ff11000001aed1d0
[   32.057734][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   32.057917][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.058094][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   32.058299][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.058446][   T12] CR2: 0000558f5a87cd5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   32.058630][   T12] PKRU: 55555554
[   32.058723][   T12] Call Trace:
[   32.058812][   T12]  <TASK>
[   32.058883][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.059045][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.059197][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.059317][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.059437][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.059555][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.059673][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.059794][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.059929][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.060050][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.060173][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.060290][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.060405][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.060527][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.060644][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.060763][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.061040][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.061156][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.061280][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.061402][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.061519][   T12]  kthread (kernel/kthread.c:436)
[   32.061612][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.061771][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.061897][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.062015][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.062163][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.062284][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.062402][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.086866][   T12] ------------[ cut here ]------------
| [   32.087003][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   32.087249][   T12] Modules linked in:
| [   32.087632][   T12] Tainted: [W]=WARN
[   32.087725][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.087892][   T12] Workqueue: netns cleanup_net
[   32.088021][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.088185][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.088620][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   32.088776][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c544e40 RCX: 1ff4000000018eaf
[   32.088969][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c544efc
[   32.089152][   T12] RBP: ff1100000e461000 R08: 1fe22000018a89e1 R09: ff11000001aed1d0
[   32.089335][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   32.089523][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c529000
[   32.089708][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   32.089934][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.090088][   T12] CR2: 0000558f5a87cd5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   32.090274][   T12] PKRU: 55555554
[   32.090368][   T12] Call Trace:
[   32.090462][   T12]  <TASK>
[   32.090527][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.090652][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.090746][   T12]  netif_close_many (net/core/dev.c:1804)
[   32.090880][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.091003][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.091125][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.091251][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   32.091386][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   32.091540][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   32.091693][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.091818][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.091983][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.092105][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.092228][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   32.092381][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   32.092506][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   32.092636][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   32.092760][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   32.092899][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   32.093023][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   32.093149][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.093271][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.093398][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.093522][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.093644][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.093769][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.093899][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.094022][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.094147][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.094273][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.094401][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.094529][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.094652][   T12]  kthread (kernel/kthread.c:436)
[   32.094745][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.094909][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.095033][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.095161][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.095315][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.095437][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.095560][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.098091][   T12] ------------[ cut here ]------------
| [   32.098220][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   32.098462][   T12] Modules linked in:
| [   32.098856][   T12] Tainted: [W]=WARN
[   32.098949][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.099102][   T12] Workqueue: netns cleanup_net
[   32.099230][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.099389][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.099827][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   32.099991][   T12] RAX: 00000000ffffffa6 RBX: ff11000011b72900 RCX: 1ff4000000018eaf
[   32.100173][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000011b729bc
[   32.100355][   T12] RBP: ff1100000c529000 R08: 1fe220000236e539 R09: ff11000001aed1d0
[   32.100541][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   32.100724][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   32.100917][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   32.101132][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.101285][   T12] CR2: 0000558f5a87cd5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   32.101470][   T12] PKRU: 55555554
[   32.101561][   T12] Call Trace:
[   32.101652][   T12]  <TASK>
[   32.101716][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.101848][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.101975][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.102067][   T12]  netif_close_many (net/core/dev.c:1804)
[   32.102191][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.102313][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.102436][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.102558][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   32.102680][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   32.102840][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   32.102995][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.103119][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.103276][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.103399][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.103522][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   32.103676][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   32.103800][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   32.103931][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   32.104058][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   32.104182][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   32.104306][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   32.104431][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.104554][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.104678][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.104800][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.104929][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.105054][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.105176][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.105299][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.105424][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.105547][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.105676][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.105802][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.105937][   T12]  kthread (kernel/kthread.c:436)
[   32.106029][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.106183][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.106306][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.106433][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.106597][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.106719][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.106851][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.109684][   T12] ------------[ cut here ]------------
| [   32.109812][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   32.110118][   T12] Modules linked in:
| [   32.110481][   T12] Tainted: [W]=WARN
[   32.110570][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.110722][   T12] Workqueue: netns cleanup_net
[   32.110904][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.111058][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.111529][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   32.111712][   T12] RAX: 00000000ffffffa6 RBX: ff1100000dbf4200 RCX: 1ff4000000018ed5
[   32.111943][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbf42bc
[   32.112120][   T12] RBP: ff1100000e461000 R08: 1fe2200001b7e859 R09: ff11000001aed1d0
[   32.112296][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   32.112483][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.112663][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   32.112923][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.113074][   T12] CR2: 0000558f5a87cd5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   32.113253][   T12] PKRU: 55555554
[   32.113343][   T12] Call Trace:
[   32.113432][   T12]  <TASK>
[   32.113497][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.113648][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.113795][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.113969][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.114087][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   32.114236][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   32.114361][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   32.114492][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   32.114611][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   32.114732][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   32.114914][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.115035][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.115157][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.115276][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.115394][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.115519][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.115637][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.115759][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.115959][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.116076][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.116200][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.116326][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.116446][   T12]  kthread (kernel/kthread.c:436)
[   32.116536][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.116685][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.116806][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.116986][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.117135][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.117257][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.117378][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.122141][   T12] ------------[ cut here ]------------
| [   32.122270][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   32.122510][   T12] Modules linked in:
| [   32.122889][   T12] Tainted: [W]=WARN
[   32.122979][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.123131][   T12] Workqueue: netns cleanup_net
[   32.123263][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.123425][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.123869][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   32.124030][   T12] RAX: 00000000ffffffa6 RBX: ff11000009735a80 RCX: 1ff4000000018ed5
[   32.124215][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009735b3c
[   32.124393][   T12] RBP: ff1100000c529000 R08: 1fe22000012e6b69 R09: ff11000001aed1d0
[   32.124574][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   32.124757][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.124946][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   32.125158][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.125312][   T12] CR2: 0000558f5a87cd5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   32.125495][   T12] PKRU: 55555554
[   32.125585][   T12] Call Trace:
[   32.125677][   T12]  <TASK>
[   32.125742][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.125906][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.126065][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.126186][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.126313][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   32.126469][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   32.126594][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   32.126720][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   32.126851][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   32.126974][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   32.127096][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.127216][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.127342][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.127463][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.127582][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.127707][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.127836][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.127966][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.128090][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.128210][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.128335][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.128465][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.128583][   T12]  kthread (kernel/kthread.c:436)
[   32.128674][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.128826][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.129048][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.129170][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.129320][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.129443][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.129563][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.133975][   T12] ------------[ cut here ]------------
| [   32.134116][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   32.134349][   T12] Modules linked in:
| [   32.134714][   T12] Tainted: [W]=WARN
[   32.134804][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.134967][   T12] Workqueue: netns cleanup_net
[   32.135091][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.135246][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.135695][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   32.135854][   T12] RAX: 00000000ffffffa6 RBX: ff110000097351c0 RCX: 1ff4000000018ed5
[   32.136031][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000973527c
[   32.136213][   T12] RBP: ff11000008d8c000 R08: 1fe22000012e6a51 R09: ff11000001aed1d0
[   32.136391][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.136569][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.136753][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   32.136975][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.137130][   T12] CR2: 0000557baa7bf058 CR3: 000000000f40d006 CR4: 0000000000771ef0
[   32.137314][   T12] PKRU: 55555554
[   32.137404][   T12] Call Trace:
[   32.137500][   T12]  <TASK>
[   32.137563][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.137717][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.137877][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.137998][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.138126][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   32.138282][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   32.138402][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   32.138524][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   32.138645][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   32.138769][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   32.138903][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.139023][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.139147][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.139268][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.139390][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.139512][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.139631][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.139753][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.139885][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.140002][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.140129][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.140253][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.140373][   T12]  kthread (kernel/kthread.c:436)
[   32.140464][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.140613][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.140734][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.140870][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.141027][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.141146][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.141265][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.173036][   T12] ------------[ cut here ]------------
| [   32.173234][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   32.173677][   T12] Modules linked in:
| [   32.174284][   T12] Tainted: [W]=WARN
[   32.174420][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.174645][   T12] Workqueue: netns cleanup_net
[   32.174848][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.175090][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.175738][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.176018][   T12] RAX: 00000000ffffffa6 RBX: ff11000009734200 RCX: 1ff4000000018eed
[   32.176289][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000097342bc
[   32.176557][   T12] RBP: ff1100000a3d1000 R08: 1fe22000012e6859 R09: ff11000001aed1d0
[   32.176818][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   32.177096][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.177367][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   32.177684][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.177926][   T12] CR2: 0000557b8eec9ae8 CR3: 000000003174d003 CR4: 0000000000771ef0
[   32.178198][   T12] PKRU: 55555554
[   32.178330][   T12] Call Trace:
[   32.178464][   T12]  <TASK>
[   32.178560][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.178790][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.179026][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.179206][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.179388][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.179568][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.179749][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.179948][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.180131][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.180309][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.180495][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.180676][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.180870][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.181053][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.181232][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.181415][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.181603][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.181785][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.181985][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.182175][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.182353][   T12]  kthread (kernel/kthread.c:436)
[   32.182489][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.182709][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.182903][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.183085][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.183310][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.183487][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.183668][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.188405][   T12] ------------[ cut here ]------------
| [   32.188598][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   32.189055][   T12] Modules linked in:
| [   32.189621][   T12] Tainted: [W]=WARN
[   32.189756][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.190084][   T12] Workqueue: netns cleanup_net
[   32.190274][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.190596][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.191424][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.191653][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ff11a80 RCX: 1ff4000000018eed
[   32.192041][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff11b3c
[   32.192309][   T12] RBP: ff11000007c31000 R08: 1fe2200001fe2369 R09: ff11000001aed1d0
[   32.192577][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   32.192933][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.193204][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   32.193518][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.193743][   T12] CR2: 0000557b8eec9ae8 CR3: 000000003174d003 CR4: 0000000000771ef0
[   32.194159][   T12] PKRU: 55555554
[   32.194296][   T12] Call Trace:
[   32.194431][   T12]  <TASK>
[   32.194527][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.194757][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.195060][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.195240][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.195426][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.195607][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.195787][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.196052][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.196237][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.196416][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.196602][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.196789][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.197058][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.197238][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.197415][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.197596][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.197780][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.198046][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.198236][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.198431][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.198611][   T12]  kthread (kernel/kthread.c:436)
[   32.198748][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.199062][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.199245][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.199424][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.199652][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.199817][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.200080][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.203333][   T12] ------------[ cut here ]------------
| [   32.203476][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   32.203708][   T12] Modules linked in:
| [   32.204089][   T12] Tainted: [W]=WARN
[   32.204179][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.204329][   T12] Workqueue: netns cleanup_net
[   32.204453][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.204606][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.205056][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.205209][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ff11380 RCX: 1ff4000000018eed
[   32.205385][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff1143c
[   32.205561][   T12] RBP: ff1100000a504000 R08: 1fe2200001fe2289 R09: ff11000001aed1d0
[   32.205736][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.205925][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.206102][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   32.206313][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.206463][   T12] CR2: 0000557baa7bf058 CR3: 000000003174d004 CR4: 0000000000771ef0
[   32.206640][   T12] PKRU: 55555554
[   32.206729][   T12] Call Trace:
[   32.206817][   T12]  <TASK>
[   32.206895][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.207044][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.207190][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.207308][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.207430][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.207549][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.207669][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.207787][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.207918][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.208038][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.208159][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.208276][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.208393][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.208515][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.208631][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.208751][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.208883][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.209001][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.209125][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.209248][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.209375][   T12]  kthread (kernel/kthread.c:436)
[   32.209467][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.209619][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.209741][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.209876][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.210022][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.210146][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.210268][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.212314][   T12] ------------[ cut here ]------------
| [   32.212432][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   32.212664][   T12] Modules linked in:
| [   32.213044][   T12] Tainted: [W]=WARN
[   32.213138][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.213287][   T12] Workqueue: netns cleanup_net
[   32.213415][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.213569][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.214004][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.214157][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ff11000 RCX: 1ff4000000018eed
[   32.214345][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff110bc
[   32.214524][   T12] RBP: ff110000093dc000 R08: 1fe2200001fe2219 R09: ff11000001aed1d0
[   32.214705][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.214891][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.215073][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   32.215282][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.215429][   T12] CR2: 0000557baa7bf058 CR3: 000000003174d004 CR4: 0000000000771ef0
[   32.215612][   T12] PKRU: 55555554
[   32.215699][   T12] Call Trace:
[   32.215793][   T12]  <TASK>
[   32.215866][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.216016][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.216167][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.216285][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.216405][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.216523][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.216642][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.216765][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.216900][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.217017][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.217137][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.217256][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.217373][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.217497][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.217613][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.217735][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.217867][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.217985][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.218107][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.218229][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.218347][   T12]  kthread (kernel/kthread.c:436)
[   32.218437][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.218585][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.218704][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.218825][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.218982][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.219102][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.219224][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.221223][   T12] ------------[ cut here ]------------
| [   32.221339][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   32.221572][   T12] Modules linked in:
| [   32.222813][   T12] Tainted: [W]=WARN
[   32.222959][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.223107][   T12] Workqueue: netns cleanup_net
[   32.223229][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.223381][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.223820][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   32.224021][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ff10c80 RCX: 1ff4000000018eed
[   32.224196][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff10d3c
[   32.224371][   T12] RBP: ff1100000a17c000 R08: 1fe2200001fe21a9 R09: ff11000001aed1d0
[   32.224547][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.224726][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.224952][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   32.225159][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.225305][   T12] CR2: 0000557baa7bf058 CR3: 000000003174d004 CR4: 0000000000771ef0
[   32.225496][   T12] PKRU: 55555554
[   32.225583][   T12] Call Trace:
[   32.225670][   T12]  <TASK>
[   32.225732][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.225930][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.226078][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   32.226196][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   32.226316][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   32.226432][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   32.226550][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   32.226668][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   32.226791][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.226961][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.227084][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.227202][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.227318][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.227437][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.227558][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.227679][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.227801][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.227973][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.228095][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.228217][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.228335][   T12]  kthread (kernel/kthread.c:436)
[   32.228425][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.228575][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.228694][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.228815][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.229013][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.229130][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.229254][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.238374][  T330] ------------[ cut here ]------------
| [   32.238523][  T330] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/330
| [   32.238752][  T330] Modules linked in:
| [   32.239137][  T330] Tainted: [W]=WARN
[   32.239236][  T330] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.239399][  T330] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.239569][  T330] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.240050][  T330] RSP: 0018:ffa0000000df7a80 EFLAGS: 00010286
[   32.240216][  T330] RAX: 00000000ffffffa6 RBX: ff1100000b749700 RCX: 1ff40000001bef16
[   32.240412][  T330] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b7497bc
[   32.240606][  T330] RBP: ff11000008bc1000 R08: 1fe22000016e92f9 R09: ff11000002785180
[   32.240804][  T330] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   32.241033][  T330] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008bc1000
[   32.241230][  T330] FS:  00007f6835a27840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   32.241462][  T330] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.241624][  T330] CR2: 00007f6835c317d0 CR3: 0000000017737002 CR4: 0000000000771ef0
[   32.241823][  T330] PKRU: 55555554
[   32.241932][  T330] Call Trace:
[   32.242030][  T330]  <TASK>
[   32.242098][  T330]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.242230][  T330]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.242362][  T330]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.242463][  T330]  register_netdevice (net/core/dev.c:11488)
[   32.242597][  T330]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.242762][  T330]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   32.242904][  T330]  register_netdev (net/core/dev.c:11552)
[   32.243036][  T330]  loopback_net_init (drivers/net/loopback.c:218)
[   32.243170][  T330]  ops_init (net/core/net_namespace.c:137)
[   32.243270][  T330]  setup_net (net/core/net_namespace.c:446)
[   32.243369][  T330]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.243500][  T330]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.243634][  T330]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.243768][  T330]  copy_net_ns (net/core/net_namespace.c:579)
[   32.243911][  T330]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.244045][  T330]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.244176][  T330]  ksys_unshare (kernel/fork.c:3243)
[   32.244307][  T330]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.244440][  T330]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.244573][  T330]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   32.244707][  T330]  ? __ia32_sys_open (fs/open.c:1374)
[   32.244880][  T330]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.245012][  T330]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.245141][  T330]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.245270][  T330]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.245400][  T330]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.245531][  T330]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.245696][  T330] RIP: 0033:0x7f6835ce9bcb
[   32.245847][  T330] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.246319][  T330] RSP: 002b:00007ffc38201288 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.246519][  T330] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6835ce9bcb
[   32.246714][  T330] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   32.246917][  T330] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   32.247112][  T330] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc382034b0
[   32.247306][  T330] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc38203875
| [   32.251700][  T330] ------------[ cut here ]------------
| [   32.251847][  T330] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/330
| [   32.252075][  T330] Modules linked in:
| [   32.252440][  T330] Tainted: [W]=WARN
[   32.252539][  T330] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.252700][  T330] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.252880][  T330] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.253341][  T330] RSP: 0018:ffa0000000df7918 EFLAGS: 00010286
[   32.253506][  T330] RAX: 00000000ffffffa6 RBX: ff1100000b550c80 RCX: 1ff40000001beee9
[   32.253699][  T330] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b550d3c
[   32.253903][  T330] RBP: ff1100000a4c4000 R08: 1fe22000016aa1a9 R09: ff11000002785180
[   32.254096][  T330] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   32.254288][  T330] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a4c4000
[   32.254483][  T330] FS:  00007f6835a27840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   32.254708][  T330] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.254880][  T330] CR2: 00007f6835c317d0 CR3: 0000000017737002 CR4: 0000000000771ef0
[   32.255073][  T330] PKRU: 55555554
[   32.255171][  T330] Call Trace:
[   32.255268][  T330]  <TASK>
[   32.255334][  T330]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.255466][  T330]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.255595][  T330]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.255694][  T330]  register_netdevice (net/core/dev.c:11488)
[   32.255828][  T330]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.255998][  T330]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   32.256140][  T330]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   32.256272][  T330]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   32.256403][  T330]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   32.256534][  T330]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   32.256665][  T330]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   32.256797][  T330]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   32.256943][  T330]  ops_init (net/core/net_namespace.c:137)
[   32.257042][  T330]  setup_net (net/core/net_namespace.c:446)
[   32.257139][  T330]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.257269][  T330]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.257401][  T330]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.257533][  T330]  copy_net_ns (net/core/net_namespace.c:579)
[   32.257664][  T330]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.257799][  T330]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.257938][  T330]  ksys_unshare (kernel/fork.c:3243)
[   32.258067][  T330]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.258199][  T330]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.258328][  T330]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   32.258460][  T330]  ? __ia32_sys_open (fs/open.c:1374)
[   32.258591][  T330]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.258718][  T330]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.258857][  T330]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.258986][  T330]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.259114][  T330]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.259244][  T330]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.259405][  T330] RIP: 0033:0x7f6835ce9bcb
[   32.259539][  T330] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.260019][  T330] RSP: 002b:00007ffc38201288 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.260214][  T330] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6835ce9bcb
[   32.260406][  T330] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   32.260599][  T330] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   32.260792][  T330] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc382034b0
[   32.260991][  T330] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc38203875
| [   32.265007][  T330] ------------[ cut here ]------------
| [   32.265143][  T330] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/330
| [   32.265372][  T330] Modules linked in:
| [   32.265738][  T330] Tainted: [W]=WARN
[   32.265876][  T330] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.266041][  T330] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.266217][  T330] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.266682][  T330] RSP: 0018:ffa0000000df78f8 EFLAGS: 00010286
[   32.266858][  T330] RAX: 00000000ffffffa6 RBX: ff1100000b551c40 RCX: 1ff40000001beee5
[   32.267055][  T330] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b551cfc
[   32.267250][  T330] RBP: ff1100000a45c000 R08: 1fe22000016aa3a1 R09: ff11000002785180
[   32.267446][  T330] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   32.267640][  T330] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a45c000
[   32.267847][  T330] FS:  00007f6835a27840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   32.268078][  T330] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.268240][  T330] CR2: 00007f6835c317d0 CR3: 0000000017737002 CR4: 0000000000771ef0
[   32.268438][  T330] PKRU: 55555554
[   32.268536][  T330] Call Trace:
[   32.268634][  T330]  <TASK>
[   32.268702][  T330]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.268844][  T330]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.268978][  T330]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.269078][  T330]  register_netdevice (net/core/dev.c:11488)
[   32.269211][  T330]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.269373][  T330]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   32.269506][  T330]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   32.269638][  T330]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   32.269772][  T330]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   32.269915][  T330]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   32.270047][  T330]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   32.270181][  T330]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   32.270315][  T330]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   32.270449][  T330]  vti_init_net (net/ipv4/ip_vti.c:517)
[   32.270582][  T330]  ops_init (net/core/net_namespace.c:137)
[   32.270683][  T330]  setup_net (net/core/net_namespace.c:446)
[   32.270785][  T330]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.270924][  T330]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.271055][  T330]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.271189][  T330]  copy_net_ns (net/core/net_namespace.c:579)
[   32.271324][  T330]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.271457][  T330]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.271589][  T330]  ksys_unshare (kernel/fork.c:3243)
[   32.271723][  T330]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.271867][  T330]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.271997][  T330]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   32.272129][  T330]  ? __ia32_sys_open (fs/open.c:1374)
[   32.272263][  T330]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.272420][  T330]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.272552][  T330]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.272684][  T330]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.272818][  T330]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.272959][  T330]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.273122][  T330] RIP: 0033:0x7f6835ce9bcb
[   32.273259][  T330] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.273726][  T330] RSP: 002b:00007ffc38201288 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.273936][  T330] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6835ce9bcb
[   32.274132][  T330] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   32.274329][  T330] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   32.274531][  T330] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc382034b0
[   32.274727][  T330] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc38203875
| [   32.284270][  T330] ------------[ cut here ]------------
| [   32.284413][  T330] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/330
| [   32.284638][  T330] Modules linked in:
| [   32.285023][  T330] Tainted: [W]=WARN
[   32.285121][  T330] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.285283][  T330] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.285454][  T330] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.285931][  T330] RSP: 0018:ffa0000000df7a78 EFLAGS: 00010286
[   32.286095][  T330] RAX: 00000000ffffffa6 RBX: ff1100000bd19380 RCX: 1ff40000001bef15
[   32.286291][  T330] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bd1943c
[   32.286484][  T330] RBP: ff11000009381000 R08: 1fe22000017a3289 R09: ff11000002785180
[   32.286678][  T330] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.286888][  T330] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009381000
[   32.287085][  T330] FS:  00007f6835a27840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   32.287313][  T330] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.287476][  T330] CR2: 0000557baa7bf058 CR3: 0000000017737001 CR4: 0000000000771ef0
[   32.287673][  T330] PKRU: 55555554
[   32.287772][  T330] Call Trace:
[   32.287880][  T330]  <TASK>
[   32.287948][  T330]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.288079][  T330]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.288211][  T330]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.288312][  T330]  register_netdevice (net/core/dev.c:11488)
[   32.288444][  T330]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.288609][  T330]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.288744][  T330]  register_netdev (net/core/dev.c:11552)
[   32.288891][  T330]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   32.289024][  T330]  ops_init (net/core/net_namespace.c:137)
[   32.289124][  T330]  setup_net (net/core/net_namespace.c:446)
[   32.289223][  T330]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.289353][  T330]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.289485][  T330]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.289617][  T330]  copy_net_ns (net/core/net_namespace.c:579)
[   32.289750][  T330]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.289895][  T330]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.290026][  T330]  ksys_unshare (kernel/fork.c:3243)
[   32.290158][  T330]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.290288][  T330]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.290420][  T330]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   32.290555][  T330]  ? __ia32_sys_open (fs/open.c:1374)
[   32.290689][  T330]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.290821][  T330]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.290963][  T330]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.291093][  T330]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.291225][  T330]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.291357][  T330]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.291522][  T330] RIP: 0033:0x7f6835ce9bcb
[   32.291661][  T330] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.292137][  T330] RSP: 002b:00007ffc38201288 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.292338][  T330] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6835ce9bcb
[   32.292533][  T330] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   32.292727][  T330] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   32.292932][  T330] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc382034b0
[   32.293128][  T330] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc38203875
| [   32.295417][   T12] ------------[ cut here ]------------
| [   32.295610][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   32.296000][   T12] Modules linked in:
| [   32.296559][   T12] Tainted: [W]=WARN
[   32.296698][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.296948][   T12] Workqueue: netns cleanup_net
[   32.297141][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.297383][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.298052][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   32.298286][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bd19000 RCX: 1ff4000000018ed5
[   32.298559][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bd190bc
[   32.298829][   T12] RBP: ff11000008d49000 R08: 1fe22000017a3219 R09: ff11000001aed1d0
[   32.299114][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   32.299388][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.299669][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   32.300005][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.300237][   T12] CR2: 0000557b8eec9ae8 CR3: 000000003174d003 CR4: 0000000000771ef0
[   32.300513][   T12] PKRU: 55555554
[   32.300650][   T12] Call Trace:
[   32.300785][   T12]  <TASK>
[   32.300896][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   32.301136][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   32.301370][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   32.301561][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   32.301750][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   32.301943][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   32.302123][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   32.302306][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   32.302486][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   32.302663][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.302865][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   32.303050][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   32.303235][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   32.303422][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.303606][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.303798][   T12]  process_one_work (kernel/workqueue.c:3314)
[   32.303999][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.304182][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.304375][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.304567][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.304748][   T12]  kthread (kernel/kthread.c:436)
[   32.304897][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.305127][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.305312][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.305497][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.305724][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.305924][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.306107][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.311730][  T330] ------------[ cut here ]------------
| [   32.311877][  T330] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/330
| [   32.312104][  T330] Modules linked in:
| [   32.312470][  T330] Tainted: [W]=WARN
[   32.312567][  T330] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.312728][  T330] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.312909][  T330] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.313368][  T330] RSP: 0018:ffa0000000df7a68 EFLAGS: 00010286
[   32.313534][  T330] RAX: 00000000ffffffa6 RBX: ff11000004e9aac0 RCX: 1ff40000001bef13
[   32.313729][  T330] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004e9ab7c
[   32.313935][  T330] RBP: ff11000002911000 R08: 1fe22000009d3571 R09: ff11000002785180
[   32.314130][  T330] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.314323][  T330] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002911000
[   32.314519][  T330] FS:  00007f6835a27840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   32.314745][  T330] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.314921][  T330] CR2: 0000557baa7bf058 CR3: 0000000017737001 CR4: 0000000000771ef0
[   32.315120][  T330] PKRU: 55555554
[   32.315219][  T330] Call Trace:
[   32.315317][  T330]  <TASK>
[   32.315385][  T330]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.315519][  T330]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.315648][  T330]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.315749][  T330]  register_netdevice (net/core/dev.c:11488)
[   32.315891][  T330]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.316055][  T330]  register_netdev (net/core/dev.c:11552)
[   32.316184][  T330]  sit_init_net (net/ipv6/sit.c:1860)
[   32.316315][  T330]  ops_init (net/core/net_namespace.c:137)
[   32.316416][  T330]  setup_net (net/core/net_namespace.c:446)
[   32.316516][  T330]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.316646][  T330]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.316779][  T330]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.316919][  T330]  copy_net_ns (net/core/net_namespace.c:579)
[   32.317052][  T330]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.317184][  T330]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.317315][  T330]  ksys_unshare (kernel/fork.c:3243)
[   32.317446][  T330]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.317578][  T330]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.317707][  T330]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   32.317846][  T330]  ? __ia32_sys_open (fs/open.c:1374)
[   32.317979][  T330]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.318108][  T330]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.318238][  T330]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.318368][  T330]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.318497][  T330]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.318628][  T330]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.318789][  T330] RIP: 0033:0x7f6835ce9bcb
[   32.318934][  T330] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.319393][  T330] RSP: 002b:00007ffc38201288 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.319593][  T330] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6835ce9bcb
[   32.319787][  T330] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   32.319993][  T330] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   32.320188][  T330] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc382034b0
[   32.320385][  T330] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc38203875
| [   32.326238][  T330] ------------[ cut here ]------------
| [   32.326375][  T330] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/330
| [   32.326604][  T330] Modules linked in:
| [   32.326985][  T330] Tainted: [W]=WARN
[   32.327084][  T330] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.327249][  T330] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.327421][  T330] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.327896][  T330] RSP: 0018:ffa0000000df7a78 EFLAGS: 00010286
[   32.328060][  T330] RAX: 00000000ffffffa6 RBX: ff1100000f98b1c0 RCX: 1ff40000001bef15
[   32.328259][  T330] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f98b27c
[   32.328452][  T330] RBP: ff110000090cc000 R08: 1fe2200001f31651 R09: ff11000002785180
[   32.328644][  T330] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.328904][  T330] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000090cc000
[   32.329105][  T330] FS:  00007f6835a27840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   32.329335][  T330] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.329499][  T330] CR2: 0000557baa7bf058 CR3: 0000000017737001 CR4: 0000000000771ef0
[   32.329696][  T330] PKRU: 55555554
[   32.329795][  T330] Call Trace:
[   32.329955][  T330]  <TASK>
[   32.330022][  T330]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.330154][  T330]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.330284][  T330]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.330383][  T330]  register_netdevice (net/core/dev.c:11488)
[   32.330516][  T330]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.330677][  T330]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.330810][  T330]  register_netdev (net/core/dev.c:11552)
[   32.331002][  T330]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   32.331134][  T330]  ops_init (net/core/net_namespace.c:137)
[   32.331234][  T330]  setup_net (net/core/net_namespace.c:446)
[   32.331333][  T330]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.331464][  T330]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.331595][  T330]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.331726][  T330]  copy_net_ns (net/core/net_namespace.c:579)
[   32.331922][  T330]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.332057][  T330]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.332188][  T330]  ksys_unshare (kernel/fork.c:3243)
[   32.332319][  T330]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.332451][  T330]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.332581][  T330]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   32.332713][  T330]  ? __ia32_sys_open (fs/open.c:1374)
[   32.332906][  T330]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.333043][  T330]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.333178][  T330]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.333307][  T330]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.333437][  T330]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.333568][  T330]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.333729][  T330] RIP: 0033:0x7f6835ce9bcb
[   32.333932][  T330] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.334401][  T330] RSP: 002b:00007ffc38201288 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.334597][  T330] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6835ce9bcb
[   32.334792][  T330] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   32.335050][  T330] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   32.335245][  T330] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc382034b0
[   32.335438][  T330] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc38203875
| [   32.374035][  T331] ------------[ cut here ]------------
| [   32.374192][  T331] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/331
| [   32.374422][  T331] Modules linked in:
| [   32.374792][  T331] Tainted: [W]=WARN
[   32.374902][  T331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.375069][  T331] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.375242][  T331] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.375718][  T331] RSP: 0018:ffa0000000e07a80 EFLAGS: 00010286
[   32.375898][  T331] RAX: 00000000ffffffa6 RBX: ff11000004e9ac80 RCX: 1ff40000001c0f16
[   32.376094][  T331] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004e9ad3c
[   32.376291][  T331] RBP: ff110000020bc000 R08: 1fe22000009d35a9 R09: ff110000051c8b80
[   32.376486][  T331] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.376681][  T331] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000020bc000
[   32.376893][  T331] FS:  00007fc4b19ed840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   32.377124][  T331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.377291][  T331] CR2: 00007fc4b1beec20 CR3: 000000000cff3003 CR4: 0000000000771ef0
[   32.377493][  T331] PKRU: 55555554
[   32.377591][  T331] Call Trace:
[   32.377690][  T331]  <TASK>
[   32.377760][  T331]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.377901][  T331]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.378035][  T331]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.378135][  T331]  register_netdevice (net/core/dev.c:11488)
[   32.378271][  T331]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.378436][  T331]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   32.378570][  T331]  register_netdev (net/core/dev.c:11552)
[   32.378702][  T331]  loopback_net_init (drivers/net/loopback.c:218)
[   32.379483][  T331]  ops_init (net/core/net_namespace.c:137)
[   32.379586][  T331]  setup_net (net/core/net_namespace.c:446)
[   32.379686][  T331]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.379817][  T331]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.380043][  T331]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.380177][  T331]  copy_net_ns (net/core/net_namespace.c:579)
[   32.380310][  T331]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.380444][  T331]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.380575][  T331]  ksys_unshare (kernel/fork.c:3243)
[   32.380707][  T331]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.380915][  T331]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.381046][  T331]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   32.381179][  T331]  ? __ia32_sys_open (fs/open.c:1374)
[   32.381311][  T331]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.381441][  T331]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.381571][  T331]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.381767][  T331]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.381910][  T331]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.382041][  T331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.382202][  T331] RIP: 0033:0x7fc4b1cafbcb
[   32.382341][  T331] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.382810][  T331] RSP: 002b:00007ffc5689d188 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.383018][  T331] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc4b1cafbcb
[   32.383215][  T331] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   32.383410][  T331] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   32.383606][  T331] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc5689f3b0
[   32.383802][  T331] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc5689f875
| [   32.387829][  T331] ------------[ cut here ]------------
| [   32.387981][  T331] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/331
| [   32.388206][  T331] Modules linked in:
| [   32.388573][  T331] Tainted: [W]=WARN
[   32.388671][  T331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.388845][  T331] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.389014][  T331] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.389474][  T331] RSP: 0018:ffa0000000e07918 EFLAGS: 00010286
[   32.389637][  T331] RAX: 00000000ffffffa6 RBX: ff1100000b5f7540 RCX: 1ff40000001c0ee9
[   32.389838][  T331] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b5f75fc
[   32.390036][  T331] RBP: ff11000008af4000 R08: 1fe22000016beec1 R09: ff110000051c8b80
[   32.390229][  T331] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.390423][  T331] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008af4000
[   32.390619][  T331] FS:  00007fc4b19ed840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   32.391371][  T331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.391537][  T331] CR2: 00007fc4b1beec20 CR3: 000000000cff3003 CR4: 0000000000771ef0
[   32.391734][  T331] PKRU: 55555554
[   32.391886][  T331] Call Trace:
[   32.392037][  T331]  <TASK>
[   32.392105][  T331]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.392235][  T331]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.392368][  T331]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.392468][  T331]  register_netdevice (net/core/dev.c:11488)
[   32.392599][  T331]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.392761][  T331]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   32.392953][  T331]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   32.393085][  T331]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   32.393214][  T331]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   32.393346][  T331]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   32.393476][  T331]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   32.393608][  T331]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   32.393741][  T331]  ops_init (net/core/net_namespace.c:137)
[   32.393899][  T331]  setup_net (net/core/net_namespace.c:446)
[   32.393999][  T331]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.394129][  T331]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.394258][  T331]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.394391][  T331]  copy_net_ns (net/core/net_namespace.c:579)
[   32.394525][  T331]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.394656][  T331]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.394787][  T331]  ksys_unshare (kernel/fork.c:3243)
[   32.394977][  T331]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.395109][  T331]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.395237][  T331]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   32.395369][  T331]  ? __ia32_sys_open (fs/open.c:1374)
[   32.395502][  T331]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.395630][  T331]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.395761][  T331]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.395951][  T331]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.396082][  T331]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.396212][  T331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.396373][  T331] RIP: 0033:0x7fc4b1cafbcb
[   32.396510][  T331] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.397030][  T331] RSP: 002b:00007ffc5689d188 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.397226][  T331] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc4b1cafbcb
[   32.397421][  T331] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   32.397616][  T331] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   32.397809][  T331] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc5689f3b0
[   32.398059][  T331] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc5689f875
| [   32.402481][  T331] ------------[ cut here ]------------
| [   32.402662][  T331] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/331
| [   32.402970][  T331] Modules linked in:
| [   32.403433][  T331] Tainted: [W]=WARN
[   32.403581][  T331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.403793][  T331] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.404031][  T331] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.404547][  T331] RSP: 0018:ffa0000000e078f8 EFLAGS: 00010286
[   32.404761][  T331] RAX: 00000000ffffffa6 RBX: ff1100000b85e740 RCX: 1ff40000001c0ee5
[   32.405022][  T331] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b85e7fc
[   32.405277][  T331] RBP: ff11000009aa9000 R08: 1fe220000170bd01 R09: ff110000051c8b80
[   32.405519][  T331] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   32.405764][  T331] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009aa9000
[   32.406028][  T331] FS:  00007fc4b19ed840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   32.406310][  T331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.406523][  T331] CR2: 00007f6835ddddb0 CR3: 000000000cff3003 CR4: 0000000000771ef0
[   32.406766][  T331] PKRU: 55555554
[   32.406929][  T331] Call Trace:
[   32.407075][  T331]  <TASK>
[   32.407191][  T331]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.407372][  T331]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.407555][  T331]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.407703][  T331]  register_netdevice (net/core/dev.c:11488)
[   32.407907][  T331]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.408123][  T331]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   32.408304][  T331]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   32.408485][  T331]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   32.408665][  T331]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   32.408874][  T331]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   32.409055][  T331]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   32.409236][  T331]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   32.409420][  T331]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   32.409603][  T331]  vti_init_net (net/ipv4/ip_vti.c:517)
[   32.409786][  T331]  ops_init (net/core/net_namespace.c:137)
[   32.409957][  T331]  setup_net (net/core/net_namespace.c:446)
[   32.410108][  T331]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.410293][  T331]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.410473][  T331]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.410654][  T331]  copy_net_ns (net/core/net_namespace.c:579)
[   32.410859][  T331]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.411041][  T331]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.411222][  T331]  ksys_unshare (kernel/fork.c:3243)
[   32.411404][  T331]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.411590][  T331]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.411770][  T331]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   32.411971][  T331]  ? __ia32_sys_open (fs/open.c:1374)
[   32.412156][  T331]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.412334][  T331]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.412514][  T331]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.412694][  T331]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.412897][  T331]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.413079][  T331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.413292][  T331] RIP: 0033:0x7fc4b1cafbcb
[   32.413477][  T331] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.414011][  T331] RSP: 002b:00007ffc5689d188 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.414263][  T331] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc4b1cafbcb
[   32.414505][  T331] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   32.414747][  T331] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   32.415008][  T331] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc5689f3b0
[   32.415255][  T331] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc5689f875
| [   32.419869][  T331] ------------[ cut here ]------------
| [   32.420048][  T331] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/331
| [   32.420318][  T331] Modules linked in:
| [   32.420777][  T331] Tainted: [W]=WARN
[   32.420948][  T331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.421157][  T331] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.421376][  T331] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.421904][  T331] RSP: 0018:ffa0000000e07a78 EFLAGS: 00010286
[   32.422120][  T331] RAX: 00000000ffffffa6 RBX: ff1100000b85f8c0 RCX: 1ff40000001c0f15
[   32.422364][  T331] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b85f97c
[   32.422605][  T331] RBP: ff1100000a3cc000 R08: 1fe220000170bf31 R09: ff110000051c8b80
[   32.422865][  T331] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   32.423109][  T331] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a3cc000
[   32.423355][  T331] FS:  00007fc4b19ed840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   32.423630][  T331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.423860][  T331] CR2: 00007f6835ddddb0 CR3: 000000000cff3003 CR4: 0000000000771ef0
[   32.424104][  T331] PKRU: 55555554
[   32.424251][  T331] Call Trace:
[   32.424398][  T331]  <TASK>
[   32.424514][  T331]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.424692][  T331]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.424891][  T331]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.425041][  T331]  register_netdevice (net/core/dev.c:11488)
[   32.425223][  T331]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.425431][  T331]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.425617][  T331]  register_netdev (net/core/dev.c:11552)
[   32.425797][  T331]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   32.425995][  T331]  ops_init (net/core/net_namespace.c:137)
[   32.426144][  T331]  setup_net (net/core/net_namespace.c:446)
[   32.426291][  T331]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.426468][  T331]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.426646][  T331]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.426829][  T331]  copy_net_ns (net/core/net_namespace.c:579)
[   32.427028][  T331]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.427209][  T331]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.427388][  T331]  ksys_unshare (kernel/fork.c:3243)
[   32.427565][  T331]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.427744][  T331]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.427940][  T331]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   32.428124][  T331]  ? __ia32_sys_open (fs/open.c:1374)
[   32.428304][  T331]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.428482][  T331]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.428660][  T331]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.428858][  T331]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.429035][  T331]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.429213][  T331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.429423][  T331] RIP: 0033:0x7fc4b1cafbcb
[   32.429609][  T331] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.430143][  T331] RSP: 002b:00007ffc5689d188 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.430386][  T331] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc4b1cafbcb
[   32.430629][  T331] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   32.430891][  T331] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   32.431131][  T331] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc5689f3b0
[   32.431370][  T331] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc5689f875
| [   32.440980][  T331] ------------[ cut here ]------------
| [   32.441168][  T331] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/331
| [   32.441439][  T331] Modules linked in:
| [   32.442456][  T331] Tainted: [W]=WARN
[   32.442659][  T331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.442953][  T331] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.443228][  T331] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.443792][  T331] RSP: 0018:ffa0000000e07a68 EFLAGS: 00010286
[   32.444076][  T331] RAX: 00000000ffffffa6 RBX: ff1100000b5f6580 RCX: 1ff40000001c0f13
[   32.444370][  T331] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b5f663c
[   32.444669][  T331] RBP: ff1100000fda1000 R08: 1fe22000016becc9 R09: ff110000051c8b80
[   32.444978][  T331] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   32.445272][  T331] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fda1000
[   32.445570][  T331] FS:  00007fc4b19ed840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   32.445921][  T331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.446187][  T331] CR2: 00007f6835ddddb0 CR3: 000000000cff3003 CR4: 0000000000771ef0
[   32.446484][  T331] PKRU: 55555554
[   32.446681][  T331] Call Trace:
[   32.446901][  T331]  <TASK>
[   32.447072][  T331]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.447307][  T331]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.447542][  T331]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.447744][  T331]  register_netdevice (net/core/dev.c:11488)
[   32.447998][  T331]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.448270][  T331]  register_netdev (net/core/dev.c:11552)
[   32.448503][  T331]  sit_init_net (net/ipv6/sit.c:1860)
[   32.448737][  T331]  ops_init (net/core/net_namespace.c:137)
[   32.448909][  T331]  setup_net (net/core/net_namespace.c:446)
[   32.449054][  T331]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.449232][  T331]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.449410][  T331]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.449592][  T331]  copy_net_ns (net/core/net_namespace.c:579)
[   32.449772][  T331]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.449976][  T331]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.450158][  T331]  ksys_unshare (kernel/fork.c:3243)
[   32.450337][  T331]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.450519][  T331]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.450697][  T331]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   32.450894][  T331]  ? __ia32_sys_open (fs/open.c:1374)
[   32.451077][  T331]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.451256][  T331]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.451436][  T331]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.451615][  T331]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.451797][  T331]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.451994][  T331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.452203][  T331] RIP: 0033:0x7fc4b1cafbcb
[   32.452386][  T331] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.452912][  T331] RSP: 002b:00007ffc5689d188 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.453158][  T331] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc4b1cafbcb
[   32.453398][  T331] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   32.453639][  T331] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   32.453896][  T331] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc5689f3b0
[   32.454140][  T331] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc5689f875
| [   32.459164][  T331] ------------[ cut here ]------------
| [   32.459346][  T331] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/331
| [   32.459617][  T331] Modules linked in:
| [   32.460091][  T331] Tainted: [W]=WARN
[   32.460237][  T331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.460449][  T331] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.460665][  T331] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.461200][  T331] RSP: 0018:ffa0000000e07a78 EFLAGS: 00010286
[   32.461413][  T331] RAX: 00000000ffffffa6 RBX: ff1100000a640ac0 RCX: 1ff40000001c0f15
[   32.461659][  T331] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a640b7c
[   32.461921][  T331] RBP: ff1100000feb4000 R08: 1fe22000014c8171 R09: ff110000051c8b80
[   32.462163][  T331] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   32.462403][  T331] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000feb4000
[   32.462651][  T331] FS:  00007fc4b19ed840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   32.462943][  T331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.463154][  T331] CR2: 00007f6835ddddb0 CR3: 000000000cff3003 CR4: 0000000000771ef0
[   32.463397][  T331] PKRU: 55555554
[   32.463544][  T331] Call Trace:
[   32.463690][  T331]  <TASK>
[   32.463805][  T331]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.464003][  T331]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.464183][  T331]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.464330][  T331]  register_netdevice (net/core/dev.c:11488)
[   32.464512][  T331]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   32.464720][  T331]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.465439][  T331]  register_netdev (net/core/dev.c:11552)
[   32.465673][  T331]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   32.465929][  T331]  ops_init (net/core/net_namespace.c:137)
[   32.466134][  T331]  setup_net (net/core/net_namespace.c:446)
[   32.466335][  T331]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   32.466567][  T331]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   32.466797][  T331]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   32.467052][  T331]  copy_net_ns (net/core/net_namespace.c:579)
[   32.467291][  T331]  create_new_namespaces (kernel/nsproxy.c:132)
[   32.467528][  T331]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   32.467819][  T331]  ksys_unshare (kernel/fork.c:3243)
[   32.468072][  T331]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.468303][  T331]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   32.468533][  T331]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   32.468768][  T331]  ? __ia32_sys_open (fs/open.c:1374)
[   32.469031][  T331]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   32.469266][  T331]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   32.469498][  T331]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.469730][  T331]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.469947][  T331]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.470127][  T331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.470337][  T331] RIP: 0033:0x7fc4b1cafbcb
[   32.470523][  T331] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   32.471060][  T331] RSP: 002b:00007ffc5689d188 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   32.471305][  T331] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc4b1cafbcb
[   32.471547][  T331] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   32.471788][  T331] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   32.472048][  T331] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc5689f3b0
[   32.472289][  T331] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc5689f875
| [   32.580736][  T334] ------------[ cut here ]------------
| [   32.580952][  T334] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/334
| [   32.581247][  T334] Modules linked in:
| [   32.581728][  T334] Tainted: [W]=WARN
[   32.581896][  T334] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.582113][  T334] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.582344][  T334] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.582890][  T334] RSP: 0018:ffa0000000e26e30 EFLAGS: 00010286
[   32.583112][  T334] RAX: 00000000ffffffa6 RBX: ff1100000d9583c0 RCX: 1ff40000001c4d8c
[   32.583362][  T334] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d95847c
[   32.583615][  T334] RBP: ff11000017681000 R08: 1fe2200001b2b091 R09: ff1100000f9d0b80
[   32.584590][  T334] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   32.584897][  T334] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000135b8b10
[   32.585148][  T334] FS:  00007fe6f8276840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   32.585437][  T334] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.585654][  T334] CR2: 000000000042ebe0 CR3: 0000000017741001 CR4: 0000000000771ef0
[   32.585926][  T334] PKRU: 55555554
[   32.586076][  T334] Call Trace:
[   32.586226][  T334]  <TASK>
[   32.586344][  T334]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.586535][  T334]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.586697][  T334]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   32.586927][  T334]  __dev_notify_flags (net/core/dev.c:9787)
[   32.587114][  T334]  ? netif_change_name (net/core/dev.c:1495)
[   32.587297][  T334]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   32.587482][  T334]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   32.587663][  T334]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   32.587867][  T334]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   32.588055][  T334]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.588240][  T334]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   32.588424][  T334]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   32.588607][  T334]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.588790][  T334]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   32.588996][  T334]  veth_newlink (drivers/net/veth.c:1871)
[   32.589181][  T334]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   32.589365][  T334]  ? kasan_save_stack (mm/kasan/common.c:57)
[   32.589550][  T334]  ? kasan_save_track (mm/kasan/common.c:78)
[   32.589735][  T334]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   32.589952][  T334]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   32.590137][  T334]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   32.590324][  T334]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   32.590508][  T334]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   32.590696][  T334]  ? rtnl_create_link (net/core/rtnetlink.c:3733)
[   32.590899][  T334]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   32.591084][  T334]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   32.591267][  T334]  ? __dev_get_by_name (net/core/dev.c:883)
[   32.591450][  T334]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   32.591638][  T334]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   32.591826][  T334]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   32.592030][  T334]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.592216][  T334]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.592400][  T334]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.592583][  T334]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   32.592765][  T334]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.592970][  T334]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.593156][  T334]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.593341][  T334]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   32.593529][  T334]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.593711][  T334]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.593915][  T334]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.594098][  T334]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.594280][  T334]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.594465][  T334]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   32.594649][  T334]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.594854][  T334]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   32.595047][  T334]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   32.595228][  T334]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   32.595414][  T334]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   32.595601][  T334]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   32.595785][  T334]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.595992][  T334]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   32.596179][  T334]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   32.596367][  T334]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   32.596551][  T334]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   32.596735][  T334]  ? copy_msghdr_from_user (net/socket.c:2635)
[   32.596941][  T334]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   32.597159][  T334]  ? move_addr_to_kernel (net/socket.c:258)
[   32.597346][  T334]  ___sys_sendmsg (net/socket.c:2752)
[   32.597530][  T334]  ? copy_msghdr_from_user (net/socket.c:2603)
[   32.597720][  T334]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.597962][  T334]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   32.598148][  T334]  __sys_sendmsg (net/socket.c:2784)
[   32.598332][  T334]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   32.598518][  T334]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   32.598701][  T334]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.598909][  T334]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.599095][  T334]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.599281][  T334]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.599465][  T334]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.599681][  T334] RIP: 0033:0x7fe6f84b008e
[   32.599891][  T334] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   32.600423][  T334] RSP: 002b:00007fff32177cb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   32.600673][  T334] RAX: ffffffffffffffda RBX: 00007fff32178468 RCX: 00007fe6f84b008e
[   32.600942][  T334] RDX: 0000000000000000 RSI: 00007fff32177d60 RDI: 0000000000000005
[   32.601193][  T334] RBP: 00007fff32177cc0 R08: 0000000000000000 R09: 0000000000000000
[   32.601443][  T334] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3cf
[   32.601694][  T334] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff32178420
| [   32.609636][  T334] ------------[ cut here ]------------
| [   32.609793][  T334] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/334
| [   32.610043][  T334] Modules linked in:
| [   32.610418][  T334] Tainted: [W]=WARN
[   32.610522][  T334] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.610693][  T334] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.610878][  T334] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.611353][  T334] RSP: 0018:ffa0000000e271b0 EFLAGS: 00010286
[   32.611525][  T334] RAX: 00000000ffffffa6 RBX: ff110000050983c0 RCX: 1ff40000001c4dfc
[   32.611724][  T334] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000509847c
[   32.611936][  T334] RBP: ff110000176ac000 R08: 1fe2200000a13091 R09: ff1100000f9d0b80
[   32.612133][  T334] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   32.612332][  T334] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa8c03b20
[   32.612533][  T334] FS:  00007fe6f8276840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   32.612768][  T334] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.612947][  T334] CR2: 00007faa01bae000 CR3: 0000000017741002 CR4: 0000000000771ef0
[   32.613147][  T334] PKRU: 55555554
[   32.613247][  T334] Call Trace:
[   32.613348][  T334]  <TASK>
[   32.613418][  T334]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.613555][  T334]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.613657][  T334]  __dev_notify_flags (net/core/dev.c:9787)
[   32.613792][  T334]  ? netif_change_name (net/core/dev.c:1495)
[   32.613936][  T334]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   32.614067][  T334]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   32.614201][  T334]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   32.614336][  T334]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   32.614469][  T334]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   32.614603][  T334]  ? __dev_get_by_name (net/core/dev.c:883)
[   32.614736][  T334]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   32.614882][  T334]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   32.615018][  T334]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   32.615152][  T334]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.615284][  T334]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.615416][  T334]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.615548][  T334]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   32.615679][  T334]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.615814][  T334]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.615957][  T334]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.616089][  T334]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   32.616221][  T334]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.616355][  T334]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.616486][  T334]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.616618][  T334]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.616750][  T334]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.616895][  T334]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   32.617027][  T334]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.617160][  T334]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   32.617295][  T334]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   32.617429][  T334]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   32.617565][  T334]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   32.617699][  T334]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   32.617843][  T334]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.617976][  T334]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   32.618111][  T334]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   32.618245][  T334]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   32.618381][  T334]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   32.618516][  T334]  ? copy_msghdr_from_user (net/socket.c:2635)
[   32.618649][  T334]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   32.618814][  T334]  ? move_addr_to_kernel (net/socket.c:258)
[   32.618957][  T334]  ___sys_sendmsg (net/socket.c:2752)
[   32.619090][  T334]  ? copy_msghdr_from_user (net/socket.c:2603)
[   32.619228][  T334]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.619398][  T334]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   32.619533][  T334]  __sys_sendmsg (net/socket.c:2784)
[   32.619667][  T334]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   32.619806][  T334]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   32.619947][  T334]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.620082][  T334]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.620215][  T334]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.620346][  T334]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.620481][  T334]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.620647][  T334] RIP: 0033:0x7fe6f84b008e
[   32.620787][  T334] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   32.621266][  T334] RSP: 002b:00007fff32177cb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   32.621468][  T334] RAX: ffffffffffffffda RBX: 00007fff32178468 RCX: 00007fe6f84b008e
[   32.621667][  T334] RDX: 0000000000000000 RSI: 00007fff32177d60 RDI: 0000000000000005
[   32.621876][  T334] RBP: 00007fff32177cc0 R08: 0000000000000000 R09: 0000000000000000
[   32.622075][  T334] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3cf
[   32.622276][  T334] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff32178420
| [   32.658510][  T335] ------------[ cut here ]------------
| [   32.658699][  T335] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/335
| [   32.658996][  T335] Modules linked in:
| [   32.659460][  T335] Tainted: [W]=WARN
[   32.659607][  T335] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.659816][  T335] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.660056][  T335] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.660564][  T335] RSP: 0018:ffa0000000e37020 EFLAGS: 00010286
[   32.660777][  T335] RAX: 00000000ffffffa6 RBX: ff11000005098040 RCX: 1ff40000001c6dca
[   32.661040][  T335] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000050980fc
[   32.661284][  T335] RBP: ff110000176ac000 R08: 1fe2200000a13021 R09: ff1100000f720b58
[   32.661524][  T335] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   32.661763][  T335] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   32.662021][  T335] FS:  00007fdf23b33840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   32.662298][  T335] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.662508][  T335] CR2: 00000000154aa988 CR3: 000000000e747003 CR4: 0000000000771ef0
[   32.662748][  T335] PKRU: 55555554
[   32.662913][  T335] Call Trace:
[   32.663062][  T335]  <TASK>
[   32.663177][  T335]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.663356][  T335]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.663503][  T335]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   32.663681][  T335]  __dev_notify_flags (net/core/dev.c:9787)
[   32.663879][  T335]  ? netif_change_name (net/core/dev.c:1495)
[   32.664059][  T335]  ? __dev_change_flags (net/core/dev.c:9752)
[   32.664239][  T335]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   32.664415][  T335]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.664595][  T335]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   32.664778][  T335]  netif_change_flags (net/core/dev.c:9820)
[   32.664981][  T335]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   32.665162][  T335]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   32.665342][  T335]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   32.665523][  T335]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   32.665733][  T335]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   32.665929][  T335]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.666107][  T335]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   32.666284][  T335]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   32.666463][  T335]  ? __kernel_text_address (kernel/extable.c:79)
[   32.666643][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.666824][  T335]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.667023][  T335]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   32.667203][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.667383][  T335]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.667559][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.667735][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.667928][  T335]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   32.668106][  T335]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   32.668284][  T335]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   32.668462][  T335]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   32.668639][  T335]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   32.668825][  T335]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   32.669024][  T335]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   32.669205][  T335]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.669382][  T335]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.669560][  T335]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.669737][  T335]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   32.669933][  T335]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.670117][  T335]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.670297][  T335]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.670476][  T335]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.670656][  T335]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.670854][  T335]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.671035][  T335]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   32.671213][  T335]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.671390][  T335]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.671571][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.671750][  T335]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.671956][  T335]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.672141][  T335]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   32.672320][  T335]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.672500][  T335]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   32.672682][  T335]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   32.672880][  T335]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   32.673064][  T335]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   32.673245][  T335]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   32.673424][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.673604][  T335]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   32.673786][  T335]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   32.673984][  T335]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   32.674167][  T335]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   32.674347][  T335]  ? copy_msghdr_from_user (net/socket.c:2635)
[   32.674529][  T335]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   32.674737][  T335]  ? move_addr_to_kernel (net/socket.c:258)
[   32.674938][  T335]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   32.675120][  T335]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.675299][  T335]  ___sys_sendmsg (net/socket.c:2752)
[   32.675475][  T335]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   32.675690][  T335]  ? copy_msghdr_from_user (net/socket.c:2603)
[   32.675900][  T335]  __sys_sendmsg (net/socket.c:2784)
[   32.676080][  T335]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   32.676257][  T335]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   32.676472][  T335]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   32.676653][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.676851][  T335]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.677033][  T335]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.677216][  T335]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.677397][  T335]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.677608][  T335] RIP: 0033:0x7fdf23d6d08e
[   32.677792][  T335] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   32.678323][  T335] RSP: 002b:00007ffe0e5b9720 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   32.678569][  T335] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fdf23d6d08e
[   32.678813][  T335] RDX: 0000000000000000 RSI: 00007ffe0e5b97d0 RDI: 0000000000000005
[   32.679075][  T335] RBP: 00007ffe0e5b9730 R08: 0000000000000000 R09: 0000000000000000
[   32.679321][  T335] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3cf
[   32.679566][  T335] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe0e5b9ea0
| [   32.712108][  T336] ------------[ cut here ]------------
| [   32.712259][  T336] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/336
| [   32.712494][  T336] Modules linked in:
| [   32.712877][  T336] Tainted: [W]=WARN
[   32.712983][  T336] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.713146][  T336] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.713315][  T336] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.713778][  T336] RSP: 0018:ffa0000000e47020 EFLAGS: 00010286
[   32.713955][  T336] RAX: 00000000ffffffa6 RBX: ff11000009a99700 RCX: 1ff40000001c8dca
[   32.714149][  T336] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a997bc
[   32.714344][  T336] RBP: ff11000017681000 R08: 1fe22000013532f9 R09: ff1100000f722e58
[   32.714539][  T336] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   32.714733][  T336] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   32.714940][  T336] FS:  00007fcd06058840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   32.715172][  T336] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.715336][  T336] CR2: 0000000036f5b988 CR3: 000000000fd6e005 CR4: 0000000000771ef0
[   32.715532][  T336] PKRU: 55555554
[   32.715631][  T336] Call Trace:
[   32.715729][  T336]  <TASK>
[   32.715798][  T336]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.715946][  T336]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.716047][  T336]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   32.716177][  T336]  __dev_notify_flags (net/core/dev.c:9787)
[   32.716309][  T336]  ? netif_change_name (net/core/dev.c:1495)
[   32.716438][  T336]  ? __dev_change_flags (net/core/dev.c:9752)
[   32.716568][  T336]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   32.716695][  T336]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.716826][  T336]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   32.716967][  T336]  netif_change_flags (net/core/dev.c:9820)
[   32.717098][  T336]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   32.717228][  T336]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   32.717360][  T336]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   32.717493][  T336]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   32.717656][  T336]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   32.717788][  T336]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.717928][  T336]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   32.718058][  T336]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   32.718190][  T336]  ? __kernel_text_address (kernel/extable.c:79)
[   32.718320][  T336]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.718451][  T336]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.718581][  T336]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   32.718713][  T336]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.718850][  T336]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.718980][  T336]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.719108][  T336]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.719238][  T336]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   32.719371][  T336]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   32.719501][  T336]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   32.719630][  T336]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   32.719763][  T336]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   32.719985][  T336]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   32.720118][  T336]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   32.720247][  T336]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.720375][  T336]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.720502][  T336]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.720630][  T336]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   32.720760][  T336]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.720990][  T336]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.721118][  T336]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.721246][  T336]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.721375][  T336]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.721505][  T336]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.721634][  T336]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   32.721764][  T336]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.721988][  T336]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.722117][  T336]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.722248][  T336]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.722378][  T336]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.722509][  T336]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   32.722637][  T336]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.722767][  T336]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   32.722981][  T336]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   32.723112][  T336]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   32.723245][  T336]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   32.723377][  T336]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   32.723507][  T336]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.723638][  T336]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   32.723770][  T336]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   32.723982][  T336]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   32.724116][  T336]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   32.724306][  T336]  ? copy_msghdr_from_user (net/socket.c:2635)
[   32.724436][  T336]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   32.724594][  T336]  ? move_addr_to_kernel (net/socket.c:258)
[   32.724726][  T336]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   32.724943][  T336]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.725073][  T336]  ___sys_sendmsg (net/socket.c:2752)
[   32.725200][  T336]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   32.725362][  T336]  ? copy_msghdr_from_user (net/socket.c:2603)
[   32.725506][  T336]  __sys_sendmsg (net/socket.c:2784)
[   32.725636][  T336]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   32.725765][  T336]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   32.725937][  T336]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   32.726069][  T336]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.726200][  T336]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.726335][  T336]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.726466][  T336]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.726596][  T336]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.726758][  T336] RIP: 0033:0x7fcd0629208e
[   32.726910][  T336] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   32.727373][  T336] RSP: 002b:00007ffefbcceb80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   32.727570][  T336] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fcd0629208e
[   32.727769][  T336] RDX: 0000000000000000 RSI: 00007ffefbccec30 RDI: 0000000000000005
[   32.727973][  T336] RBP: 00007ffefbcceb90 R08: 0000000000000000 R09: 0000000000000000
[   32.728169][  T336] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3cf
[   32.728363][  T336] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffefbccf300
| [   32.731106][   T46] ------------[ cut here ]------------
| [   32.731307][   T46] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/46
| [   32.731667][   T46] Modules linked in:
| [   32.732254][   T46] Tainted: [W]=WARN
[   32.732396][   T46] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.732630][   T46] Workqueue: events_unbound linkwatch_event
[   32.732891][   T46] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.733131][   T46] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.733786][   T46] RSP: 0018:ffa000000032f9e0 EFLAGS: 00010286
[   32.734029][   T46] RAX: 00000000ffffffa6 RBX: ff11000009a98740 RCX: 1ff4000000065f02
[   32.734306][   T46] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a987fc
[   32.734587][   T46] RBP: ff110000176ac000 R08: 1fe2200001353101 R09: ff110000024a0ba8
[   32.734880][   T46] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   32.735156][   T46] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   32.735432][   T46] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   32.735749][   T46] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.735997][   T46] CR2: 0000557b8eec9ae8 CR3: 000000003174d003 CR4: 0000000000771ef0
[   32.736274][   T46] PKRU: 55555554
[   32.736411][   T46] Call Trace:
[   32.736549][   T46]  <TASK>
[   32.736647][   T46]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.736846][   T46]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.737031][   T46]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.737170][   T46]  netif_state_change (net/core/dev.c:1605)
[   32.737353][   T46]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   32.737585][   T46]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   32.737769][   T46]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   32.737967][   T46]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   32.738154][   T46]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   32.738337][   T46]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   32.738524][   T46]  process_one_work (kernel/workqueue.c:3314)
[   32.738716][   T46]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   32.738911][   T46]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.739098][   T46]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   32.739287][   T46]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   32.739469][   T46]  kthread (kernel/kthread.c:436)
[   32.739608][   T46]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.739849][   T46]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.740037][   T46]  ret_from_fork (arch/x86/kernel/process.c:158)
[   32.740222][   T46]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   32.740438][   T46]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   32.740606][   T46]  ? kthread_affine_node (kernel/kthread.c:378)
[   32.740788][   T46]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.773361][  T337] ------------[ cut here ]------------
| [   32.773512][  T337] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/337
| [   32.773746][  T337] Modules linked in:
| [   32.774223][  T337] Tainted: [W]=WARN
[   32.774322][  T337] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.774484][  T337] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.774660][  T337] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.775213][  T337] RSP: 0018:ffa0000000e57050 EFLAGS: 00010286
[   32.775377][  T337] RAX: 00000000ffffffa6 RBX: ff11000009a9ba80 RCX: 1ff40000001cadd0
[   32.775576][  T337] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a9bb3c
[   32.775768][  T337] RBP: ff110000176ac000 R08: 1fe2200001353769 R09: ff1100000f560b80
[   32.776051][  T337] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   32.776243][  T337] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   32.776438][  T337] FS:  00007f9a7b102840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   32.776664][  T337] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.776824][  T337] CR2: 00007f9a7b3d21a0 CR3: 0000000008c11001 CR4: 0000000000771ef0
[   32.779056][  T337] PKRU: 55555554
[   32.780173][  T337] Call Trace:
[   32.780288][  T337]  <TASK>
[   32.780359][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.780494][  T337]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   32.780625][  T337]  notifier_call_chain (kernel/notifier.c:85)
[   32.780756][  T337]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   32.780982][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.781113][  T337]  ? netif_set_group (net/core/dev.c:9947)
[   32.781243][  T337]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   32.781407][  T337]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   32.781542][  T337]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   32.781675][  T337]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   32.781807][  T337]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   32.782050][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   32.782179][  T337]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.782309][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   32.782437][  T337]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   32.782569][  T337]  ? __kernel_text_address (kernel/extable.c:79)
[   32.782698][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.782829][  T337]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.783018][  T337]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   32.783147][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.783276][  T337]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.783403][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.783532][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.783660][  T337]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   32.783791][  T337]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   32.783983][  T337]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   32.784113][  T337]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   32.784245][  T337]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   32.784378][  T337]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   32.784509][  T337]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.784637][  T337]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.784766][  T337]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.784935][  T337]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   32.785062][  T337]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.785191][  T337]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.785321][  T337]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.785449][  T337]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.785578][  T337]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.785708][  T337]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.785848][  T337]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   32.785977][  T337]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.786105][  T337]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.786233][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.786363][  T337]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.786491][  T337]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.786622][  T337]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   32.786754][  T337]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.786893][  T337]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   32.787029][  T337]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   32.787158][  T337]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   32.787290][  T337]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   32.787421][  T337]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   32.787556][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.787687][  T337]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   32.787817][  T337]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   32.787961][  T337]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   32.788093][  T337]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   32.788221][  T337]  ? copy_msghdr_from_user (net/socket.c:2635)
[   32.788349][  T337]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   32.788510][  T337]  ? move_addr_to_kernel (net/socket.c:258)
[   32.788644][  T337]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   32.788772][  T337]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.788910][  T337]  ___sys_sendmsg (net/socket.c:2752)
[   32.789037][  T337]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   32.789198][  T337]  ? copy_msghdr_from_user (net/socket.c:2603)
[   32.789338][  T337]  __sys_sendmsg (net/socket.c:2784)
[   32.789467][  T337]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   32.789597][  T337]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   32.789760][  T337]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   32.789902][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.790033][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.790163][  T337]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.790291][  T337]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.790419][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.790580][  T337] RIP: 0033:0x7f9a7b33c08e
[   32.790719][  T337] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   32.791193][  T337] RSP: 002b:00007ffdc1b6e7d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   32.791388][  T337] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f9a7b33c08e
[   32.791584][  T337] RDX: 0000000000000000 RSI: 00007ffdc1b6e880 RDI: 0000000000000005
[   32.791776][  T337] RBP: 00007ffdc1b6e7e0 R08: 0000000000000000 R09: 0000000000000000
[   32.791978][  T337] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d1
[   32.792171][  T337] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdc1b6ef50
| [   32.822434][  T338] ------------[ cut here ]------------
| [   32.822622][  T338] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/338
| [   32.822982][  T338] Modules linked in:
| [   32.823454][  T338] Tainted: [W]=WARN
[   32.823598][  T338] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.823807][  T338] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.824047][  T338] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.824553][  T338] RSP: 0018:ffa0000000e67150 EFLAGS: 00010286
[   32.824763][  T338] RAX: 00000000ffffffa6 RBX: ff11000009a9b000 RCX: 1ff40000001ccdf0
[   32.825019][  T338] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a9b0bc
[   32.825256][  T338] RBP: ff11000017681000 R08: 1fe2200001353619 R09: ff1100000f562e58
[   32.825496][  T338] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   32.825732][  T338] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000203c3c0
[   32.825994][  T338] FS:  00007fdfd2385840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   32.826269][  T338] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.826478][  T338] CR2: 00000000004ebb20 CR3: 000000000f537006 CR4: 0000000000771ef0
[   32.826720][  T338] PKRU: 55555554
[   32.826883][  T338] Call Trace:
[   32.827029][  T338]  <TASK>
[   32.827145][  T338]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   32.827326][  T338]  ? notifier_call_chain (kernel/notifier.c:85)
[   32.827505][  T338]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   32.827650][  T338]  netif_state_change (net/core/dev.c:1605)
[   32.827828][  T338]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   32.828059][  T338]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   32.828270][  T338]  linkwatch_sync_dev (net/core/link_watch.c:295)
[   32.828445][  T338]  rtnl_getlink (net/core/rtnetlink.c:4273)
[   32.828620][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.828798][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.828991][  T338]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   32.829166][  T338]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   32.829341][  T338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.829519][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.829712][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.829909][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.830088][  T338]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   32.830264][  T338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.830439][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.830620][  T338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.830797][  T338]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   32.830990][  T338]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   32.831166][  T338]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.831342][  T338]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.831517][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.831696][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.831889][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.832066][  T338]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   32.832242][  T338]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.832420][  T338]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   32.832599][  T338]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   32.832773][  T338]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   32.832972][  T338]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   32.833154][  T338]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   32.833334][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.833512][  T338]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   32.833690][  T338]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   32.833888][  T338]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   32.834069][  T338]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   32.834248][  T338]  ? copy_msghdr_from_user (net/socket.c:2635)
[   32.834424][  T338]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   32.834631][  T338]  ? move_addr_to_kernel (net/socket.c:258)
[   32.834805][  T338]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   32.835008][  T338]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   32.835219][  T338]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   32.835394][  T338]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   32.835604][  T338]  ___sys_sendmsg (net/socket.c:2752)
[   32.835780][  T338]  ? copy_msghdr_from_user (net/socket.c:2603)
[   32.835980][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.836167][  T338]  ? move_addr_to_user (./include/linux/uaccess.h:236 net/socket.c:302)
[   32.836343][  T338]  ? do_getsockname (net/socket.c:2192)
[   32.836523][  T338]  __sys_sendmsg (net/socket.c:2784)
[   32.836699][  T338]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   32.836894][  T338]  ? __sys_getsockname (net/socket.c:2210)
[   32.837072][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.837248][  T338]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.837428][  T338]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.837605][  T338]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.837784][  T338]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.838012][  T338] RIP: 0033:0x7fdfd25bf08e
[   32.838198][  T338] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   32.838703][  T338] RSP: 002b:00007ffe34eecc80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   32.838961][  T338] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdfd25bf08e
[   32.839199][  T338] RDX: 0000000000000000 RSI: 00007ffe34eecd30 RDI: 0000000000000006
[   32.839438][  T338] RBP: 00007ffe34eecc90 R08: 0000000000000000 R09: 0000000000000000
[   32.839679][  T338] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d0
[   32.839940][  T338] R13: 00007ffe34eecde0 R14: 0000000000000000 R15: 0000000000000004
| [   32.842748][  T338] ------------[ cut here ]------------
| [   32.843501][  T338] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/338
| [   32.843795][  T338] Modules linked in:
| [   32.844565][  T338] Tainted: [W]=WARN
[   32.844714][  T338] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.844948][  T338] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   32.845177][  T338] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   32.845715][  T338] RSP: 0018:ffa0000000e67050 EFLAGS: 00010286
[   32.845948][  T338] RAX: 00000000ffffffa6 RBX: ff1100000e5b1c40 RCX: 1ff40000001ccdd0
[   32.846187][  T338] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e5b1cfc
[   32.846422][  T338] RBP: ff11000017681000 R08: 1fe2200001cb63a1 R09: ff1100000f562e80
[   32.846660][  T338] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   32.846921][  T338] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   32.847161][  T338] FS:  00007fdfd2385840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   32.847431][  T338] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.847639][  T338] CR2: 0000000026797988 CR3: 000000000f537006 CR4: 0000000000771ef0
[   32.847898][  T338] PKRU: 55555554
[   32.848039][  T338] Call Trace:
[   32.848181][  T338]  <TASK>
[   32.848294][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.848470][  T338]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   32.848649][  T338]  notifier_call_chain (kernel/notifier.c:85)
[   32.848828][  T338]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   32.849025][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.849202][  T338]  ? netif_set_group (net/core/dev.c:9947)
[   32.849384][  T338]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   32.849590][  T338]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   32.849768][  T338]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   32.849964][  T338]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   32.850140][  T338]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   32.850348][  T338]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   32.850525][  T338]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.850705][  T338]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   32.850898][  T338]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   32.851076][  T338]  ? __kernel_text_address (kernel/extable.c:79)
[   32.851252][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.851429][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.851605][  T338]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   32.851780][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.851978][  T338]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   32.852153][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.852328][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.852504][  T338]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   32.852681][  T338]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   32.852875][  T338]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   32.853053][  T338]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   32.853234][  T338]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   32.853416][  T338]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   32.853595][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.853769][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.853963][  T338]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.854139][  T338]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   32.854315][  T338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.854495][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.854672][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.854871][  T338]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.855048][  T338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   32.855226][  T338]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   32.855403][  T338]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   32.855579][  T338]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.855756][  T338]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.855954][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.856140][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   32.856314][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.856494][  T338]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   32.856669][  T338]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.856865][  T338]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   32.857046][  T338]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   32.857221][  T338]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   32.857401][  T338]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   32.857582][  T338]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   32.857759][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.857957][  T338]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   32.858139][  T338]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   32.858318][  T338]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   32.858500][  T338]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   32.858679][  T338]  ? copy_msghdr_from_user (net/socket.c:2635)
[   32.858881][  T338]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   32.859088][  T338]  ? move_addr_to_kernel (net/socket.c:258)
[   32.859268][  T338]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   32.859446][  T338]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   32.859625][  T338]  ___sys_sendmsg (net/socket.c:2752)
[   32.859799][  T338]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   32.860026][  T338]  ? copy_msghdr_from_user (net/socket.c:2603)
[   32.860220][  T338]  __sys_sendmsg (net/socket.c:2784)
[   32.860400][  T338]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   32.860575][  T338]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   32.860788][  T338]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   32.860985][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   32.861165][  T338]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.861342][  T338]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   32.861521][  T338]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   32.861729][  T338]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.861953][  T338] RIP: 0033:0x7fdfd25bf08e
[   32.862135][  T338] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   32.862642][  T338] RSP: 002b:00007ffe34eee900 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   32.862918][  T338] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fdfd25bf08e
[   32.863155][  T338] RDX: 0000000000000000 RSI: 00007ffe34eee9b0 RDI: 0000000000000005
[   32.863394][  T338] RBP: 00007ffe34eee910 R08: 0000000000000000 R09: 0000000000000000
[   32.863635][  T338] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d1
[   32.863908][  T338] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe34eef080
| [   35.992156][   T12] ------------[ cut here ]------------
| [   35.992330][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   35.992574][   T12] Modules linked in:
| [   35.992965][   T12] Tainted: [W]=WARN
[   35.993054][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.993249][   T12] Workqueue: netns cleanup_net
[   35.993386][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.993540][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.993978][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   35.994154][   T12] RAX: 00000000ffffffa6 RBX: ff110000135e0900 RCX: 1ff4000000018eed
[   35.994343][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000135e09bc
[   35.994524][   T12] RBP: ff1100000feb4000 R08: 1fe22000026bc139 R09: ff11000001aed1d0
[   35.994700][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.994887][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.995062][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   35.995270][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.995419][   T12] CR2: 000055b165b71d5c CR3: 000000000558e001 CR4: 0000000000771ef0
[   35.995601][   T12] PKRU: 55555554
[   35.995690][   T12] Call Trace:
[   35.995778][   T12]  <TASK>
[   35.995854][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.996005][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.996161][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.996284][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.996407][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.996525][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.996645][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.996765][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.996896][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   35.997011][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.997134][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   35.997255][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.997375][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.997493][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.997607][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.997727][   T12]  process_one_work (kernel/workqueue.c:3314)
[   35.997855][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.997974][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.998095][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.998216][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.998333][   T12]  kthread (kernel/kthread.c:436)
[   35.998422][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.998569][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.998687][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.998807][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.998968][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.999088][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.999204][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.001476][   T12] ------------[ cut here ]------------
| [   36.001600][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   36.001830][   T12] Modules linked in:
| [   36.002200][   T12] Tainted: [W]=WARN
[   36.002287][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.002432][   T12] Workqueue: netns cleanup_net
[   36.002634][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.002789][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.003218][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   36.003364][   T12] RAX: 00000000ffffffa6 RBX: ff110000135e0200 RCX: 1ff4000000018eed
[   36.003542][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000135e02bc
[   36.003729][   T12] RBP: ff1100000fda1000 R08: 1fe22000026bc059 R09: ff11000001aed1d0
[   36.003917][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   36.004090][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.004268][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.004478][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.004697][   T12] CR2: 000055b165b71d5c CR3: 000000003174d003 CR4: 0000000000771ef0
[   36.004880][   T12] PKRU: 55555554
[   36.004966][   T12] Call Trace:
[   36.005054][   T12]  <TASK>
[   36.005134][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   36.005293][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.005436][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   36.005555][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   36.005673][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   36.005789][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   36.005916][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.006035][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   36.006155][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.006271][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.006392][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.006512][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.006629][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.006752][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.006877][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.006997][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.007117][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.007234][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.007361][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.007484][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.007602][   T12]  kthread (kernel/kthread.c:436)
[   36.007690][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.007846][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.007969][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.008086][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.008235][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.008354][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.008472][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.010647][   T12] ------------[ cut here ]------------
| [   36.010767][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   36.011461][   T12] Modules linked in:
| [   36.011816][   T12] Tainted: [W]=WARN
[   36.011955][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.012104][   T12] Workqueue: netns cleanup_net
[   36.012223][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.012374][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.012791][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   36.012987][   T12] RAX: 00000000ffffffa6 RBX: ff11000012da3a80 RCX: 1ff4000000018eed
[   36.013208][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012da3b3c
[   36.013382][   T12] RBP: ff1100000a3cc000 R08: 1fe22000025b4769 R09: ff11000001aed1d0
[   36.013557][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   36.013735][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.013961][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.014165][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.014314][   T12] CR2: 000055b165b71d5c CR3: 000000003174d003 CR4: 0000000000771ef0
[   36.014492][   T12] PKRU: 55555554
[   36.014580][   T12] Call Trace:
[   36.014667][   T12]  <TASK>
[   36.014728][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   36.014931][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.015076][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   36.015193][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   36.015314][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   36.015432][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   36.015555][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.015673][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   36.015797][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.015964][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.016084][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.016202][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.016321][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.016441][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.016558][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.016679][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.016801][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.016969][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.017093][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.017216][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.017339][   T12]  kthread (kernel/kthread.c:436)
[   36.017431][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.017582][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.017701][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.017820][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.018018][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.018137][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.018257][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.020353][   T12] ------------[ cut here ]------------
| [   36.020484][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   36.020734][   T12] Modules linked in:
| [   36.021116][   T12] Tainted: [W]=WARN
[   36.021210][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.021361][   T12] Workqueue: netns cleanup_net
[   36.021485][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.021639][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.022108][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   36.022259][   T12] RAX: 00000000ffffffa6 RBX: ff11000012da38c0 RCX: 1ff4000000018eed
[   36.022437][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012da397c
[   36.022610][   T12] RBP: ff11000009aa9000 R08: 1fe22000025b4731 R09: ff11000001aed1d0
[   36.022791][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   36.022987][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.023167][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   36.023371][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.023522][   T12] CR2: 000055b165b71d5c CR3: 000000000558e001 CR4: 0000000000771ef0
[   36.023703][   T12] PKRU: 55555554
[   36.023792][   T12] Call Trace:
[   36.023891][   T12]  <TASK>
[   36.023954][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   36.024104][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.024258][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   36.024375][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   36.024493][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   36.024613][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   36.024730][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.024863][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   36.024983][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.025100][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.025220][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.025338][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.025462][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.025583][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.025701][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.025820][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.025952][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.026073][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.026196][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.026318][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.026436][   T12]  kthread (kernel/kthread.c:436)
[   36.026527][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.026673][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.026790][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.026922][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.027069][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.027187][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.027304][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.029272][   T12] ------------[ cut here ]------------
| [   36.029391][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   36.029618][   T12] Modules linked in:
| [   36.029984][   T12] Tainted: [W]=WARN
[   36.030073][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.030220][   T12] Workqueue: netns cleanup_net
[   36.030341][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.030494][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.030924][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   36.031072][   T12] RAX: 00000000ffffffa6 RBX: ff11000012da3380 RCX: 1ff4000000018eed
[   36.031250][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012da343c
[   36.031425][   T12] RBP: ff11000008af4000 R08: 1fe22000025b4689 R09: ff11000001aed1d0
[   36.031599][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   36.031775][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.031964][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   36.032172][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.032317][   T12] CR2: 000055b165b71d5c CR3: 000000000558e001 CR4: 0000000000771ef0
[   36.032492][   T12] PKRU: 55555554
[   36.032582][   T12] Call Trace:
[   36.032671][   T12]  <TASK>
[   36.032733][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   36.032892][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.033038][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   36.033156][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   36.033274][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   36.033394][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   36.033514][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.033633][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   36.033753][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.033878][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.034003][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.034119][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.034234][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.034352][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.034470][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.034596][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.034716][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.034837][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.034965][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.035087][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.035206][   T12]  kthread (kernel/kthread.c:436)
[   36.035295][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.035446][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.035563][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.035680][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.035827][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.035953][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.036071][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.049542][   T12] ------------[ cut here ]------------
| [   36.049685][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   36.049948][   T12] Modules linked in:
| [   36.050343][   T12] Tainted: [W]=WARN
[   36.050436][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.050589][   T12] Workqueue: netns cleanup_net
[   36.050717][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.050949][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.051410][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   36.051564][   T12] RAX: 00000000ffffffa6 RBX: ff11000012da31c0 RCX: 1ff4000000018eaf
[   36.051761][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012da327c
[   36.052004][   T12] RBP: ff11000017681000 R08: 1fe22000025b4651 R09: ff11000001aed1d0
[   36.052189][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   36.052368][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000176ac000
[   36.052551][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   36.052761][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.052971][   T12] CR2: 000055b165b71d5c CR3: 000000000558e001 CR4: 0000000000771ef0
[   36.053178][   T12] PKRU: 55555554
[   36.053269][   T12] Call Trace:
[   36.053359][   T12]  <TASK>
[   36.053423][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.053546][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.053640][   T12]  netif_close_many (net/core/dev.c:1804)
[   36.053763][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.053892][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.054012][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.054137][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   36.054259][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   36.054412][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   36.054564][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.054683][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.054841][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.054967][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   36.055088][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   36.055239][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   36.055361][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   36.055508][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   36.055631][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   36.055754][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   36.055885][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   36.056007][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.056129][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.056253][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.056374][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.056495][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.056618][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.056739][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.056872][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.056997][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.057119][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.057245][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.057369][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.057490][   T12]  kthread (kernel/kthread.c:436)
[   36.057584][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.057734][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.057865][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.057987][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.058137][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.058257][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.058378][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.060755][   T12] ------------[ cut here ]------------
| [   36.060899][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   36.061146][   T12] Modules linked in:
| [   36.061519][   T12] Tainted: [W]=WARN
[   36.061612][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.061765][   T12] Workqueue: netns cleanup_net
[   36.061902][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.062063][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.062500][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   36.062654][   T12] RAX: 00000000ffffffa6 RBX: ff1100001184d380 RCX: 1ff4000000018eaf
[   36.062843][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001184d43c
[   36.063034][   T12] RBP: ff110000176ac000 R08: 1fe2200002309a89 R09: ff11000001aed1d0
[   36.063215][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   36.063397][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   36.063582][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.063799][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.063964][   T12] CR2: 000055b165b71d5c CR3: 000000003174d003 CR4: 0000000000771ef0
[   36.064149][   T12] PKRU: 55555554
[   36.064241][   T12] Call Trace:
[   36.064333][   T12]  <TASK>
[   36.064396][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.064521][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.064645][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.064740][   T12]  netif_close_many (net/core/dev.c:1804)
[   36.064874][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.065000][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.065122][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.065253][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   36.065377][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   36.065535][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   36.065691][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.065815][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.065975][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.066096][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   36.066217][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   36.066370][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   36.066498][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   36.066622][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   36.066747][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   36.066881][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   36.067005][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   36.067130][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.067250][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.067375][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.067497][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.067620][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.067743][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.067873][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.067995][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.068124][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.068246][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.068372][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.068498][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.068621][   T12]  kthread (kernel/kthread.c:436)
[   36.068712][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.068891][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.069014][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.069144][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.069300][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.069423][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.069548][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.072324][   T12] ------------[ cut here ]------------
| [   36.072447][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   36.072753][   T12] Modules linked in:
| [   36.073278][   T12] Tainted: [W]=WARN
[   36.073368][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.073519][   T12] Workqueue: netns cleanup_net
[   36.073646][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.073801][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.074233][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   36.074382][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ff10740 RCX: 1ff4000000018ed5
[   36.074557][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff107fc
[   36.074733][   T12] RBP: ff11000017681000 R08: 1fe2200001fe2101 R09: ff11000001aed1d0
[   36.074916][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   36.075091][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.075267][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.075474][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.075622][   T12] CR2: 000055b165b71d5c CR3: 000000003174d003 CR4: 0000000000771ef0
[   36.075798][   T12] PKRU: 55555554
[   36.075896][   T12] Call Trace:
[   36.075984][   T12]  <TASK>
[   36.076046][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   36.076198][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.076349][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.076470][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   36.076596][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   36.076753][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   36.076879][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   36.076999][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   36.077118][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   36.077245][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   36.077367][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.077489][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.077611][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.077732][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.077859][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.077981][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.078098][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.078220][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.078345][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.078463][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.078587][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.078710][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.078827][   T12]  kthread (kernel/kthread.c:436)
[   36.078926][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.079075][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.079192][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.079313][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.079463][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.079581][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.079701][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.082337][   T12] ------------[ cut here ]------------
| [   36.082457][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   36.082687][   T12] Modules linked in:
| [   36.083137][   T12] Tainted: [W]=WARN
[   36.083227][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.083448][   T12] Workqueue: netns cleanup_net
[   36.083572][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.083725][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.084232][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   36.084390][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ff11380 RCX: 1ff4000000018ed5
[   36.084575][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff1143c
[   36.084752][   T12] RBP: ff110000176ac000 R08: 1fe2200001fe2289 R09: ff11000001aed1d0
[   36.084935][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   36.085110][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.085289][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.085565][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.085712][   T12] CR2: 000055b165b71d5c CR3: 000000003174d003 CR4: 0000000000771ef0
[   36.085975][   T12] PKRU: 55555554
[   36.086134][   T12] Call Trace:
[   36.086293][   T12]  <TASK>
[   36.086354][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   36.086505][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.086651][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.086844][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   36.086963][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   36.087115][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   36.087236][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   36.087426][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   36.087546][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   36.087665][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   36.087785][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.087909][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.088031][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.088150][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.088267][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.088461][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.088575][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.088698][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.088823][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.088950][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.089072][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.089266][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.089386][   T12]  kthread (kernel/kthread.c:436)
[   36.089479][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.089626][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.089746][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.089879][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.090027][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.090216][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.090410][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.093505][   T12] ------------[ cut here ]------------
| [   36.093626][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   36.093869][   T12] Modules linked in:
| [   36.094229][   T12] Tainted: [W]=WARN
[   36.094318][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.094470][   T12] Workqueue: netns cleanup_net
[   36.094594][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.094747][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.095182][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   36.095337][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ff11a80 RCX: 1ff4000000018ed5
[   36.095523][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ff11b3c
[   36.095701][   T12] RBP: ff110000020bc000 R08: 1fe2200001fe2369 R09: ff11000001aed1d0
[   36.095887][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   36.096066][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.096291][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.096498][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.096645][   T12] CR2: 000055b165b71d5c CR3: 000000003174d003 CR4: 0000000000771ef0
[   36.096908][   T12] PKRU: 55555554
[   36.097067][   T12] Call Trace:
[   36.097160][   T12]  <TASK>
[   36.097222][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   36.097376][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.097666][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.097787][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   36.097917][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   36.098074][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   36.098268][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   36.098388][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   36.098508][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   36.098632][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   36.098827][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.098954][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.099077][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.099196][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.099387][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.099507][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.099623][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.099751][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.099956][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.100077][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.100201][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.100328][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.100519][   T12]  kthread (kernel/kthread.c:436)
[   36.100679][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.100837][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.100959][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.101151][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.101300][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.101421][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.101541][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.144325][  T352] ------------[ cut here ]------------
| [   36.144510][  T352] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/352
| [   36.144786][  T352] Modules linked in:
| [   36.145273][  T352] Tainted: [W]=WARN
[   36.145420][  T352] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.145630][  T352] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.145871][  T352] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.146377][  T352] RSP: 0018:ffa0000000d27a80 EFLAGS: 00010286
[   36.146591][  T352] RAX: 00000000ffffffa6 RBX: ff1100000b550c80 RCX: 1ff40000001a4f16
[   36.146830][  T352] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b550d3c
[   36.147090][  T352] RBP: ff1100000fdd4000 R08: 1fe22000016aa1a9 R09: ff11000002782e80
[   36.147331][  T352] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   36.147571][  T352] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fdd4000
[   36.147815][  T352] FS:  00007fe688a8c840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   36.148108][  T352] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.148320][  T352] CR2: 00007fe688c8dc20 CR3: 000000000fa7c003 CR4: 0000000000771ef0
[   36.148566][  T352] PKRU: 55555554
[   36.148711][  T352] Call Trace:
[   36.148874][  T352]  <TASK>
[   36.148989][  T352]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.149167][  T352]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.149345][  T352]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.149494][  T352]  register_netdevice (net/core/dev.c:11488)
[   36.149672][  T352]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   36.149901][  T352]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   36.150080][  T352]  register_netdev (net/core/dev.c:11552)
[   36.150259][  T352]  loopback_net_init (drivers/net/loopback.c:218)
[   36.150438][  T352]  ops_init (net/core/net_namespace.c:137)
[   36.150586][  T352]  setup_net (net/core/net_namespace.c:446)
[   36.150733][  T352]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   36.150927][  T352]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   36.151105][  T352]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   36.151287][  T352]  copy_net_ns (net/core/net_namespace.c:579)
[   36.151466][  T352]  create_new_namespaces (kernel/nsproxy.c:132)
[   36.151647][  T352]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   36.151826][  T352]  ksys_unshare (kernel/fork.c:3243)
[   36.152027][  T352]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   36.152205][  T352]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   36.152385][  T352]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   36.152565][  T352]  ? __ia32_sys_open (fs/open.c:1374)
[   36.152746][  T352]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   36.152941][  T352]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   36.153119][  T352]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.153298][  T352]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.153475][  T352]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.153653][  T352]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.153882][  T352] RIP: 0033:0x7fe688d4ebcb
[   36.154065][  T352] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   36.154570][  T352] RSP: 002b:00007ffdd0268728 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   36.154814][  T352] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe688d4ebcb
[   36.155074][  T352] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   36.155314][  T352] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   36.155556][  T352] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdd026a950
[   36.155795][  T352] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdd026b875
| [   36.158084][   T12] ------------[ cut here ]------------
| [   36.158215][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   36.158448][   T12] Modules linked in:
| [   36.158810][   T12] Tainted: [W]=WARN
[   36.159150][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.159298][   T12] Workqueue: netns cleanup_net
[   36.159420][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.159579][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.160012][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   36.160160][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b550580 RCX: 1ff4000000018eed
[   36.160346][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b55063c
[   36.160521][   T12] RBP: ff110000090cc000 R08: 1fe22000016aa0c9 R09: ff11000001aed1d0
[   36.160699][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   36.160882][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.161057][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.161265][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.161412][   T12] CR2: 000055b165b71d5c CR3: 000000003174d003 CR4: 0000000000771ef0
[   36.161591][   T12] PKRU: 55555554
[   36.161678][   T12] Call Trace:
[   36.161766][   T12]  <TASK>
[   36.161828][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   36.161990][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.162137][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   36.162255][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   36.162373][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   36.162491][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   36.162611][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.162731][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   36.162859][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.162979][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.163099][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.163223][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.163344][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.163464][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.163583][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.163701][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.163824][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.163950][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.164073][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.164196][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.164313][   T12]  kthread (kernel/kthread.c:436)
[   36.164403][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.164548][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.164667][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.164786][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.164948][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.165071][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.165194][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.167343][   T12] ------------[ cut here ]------------
| [   36.167462][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   36.167691][   T12] Modules linked in:
| [   36.168106][   T12] Tainted: [W]=WARN
[   36.168194][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.168343][   T12] Workqueue: netns cleanup_net
[   36.168465][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.168619][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.169049][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   36.169204][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bd18040 RCX: 1ff4000000018eed
[   36.169382][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bd180fc
[   36.169560][   T12] RBP: ff11000002911000 R08: 1fe22000017a3021 R09: ff11000001aed1d0
[   36.169736][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   36.169920][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.170095][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.170302][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.170450][   T12] CR2: 000055b165b71d5c CR3: 000000003174d003 CR4: 0000000000771ef0
[   36.170630][   T12] PKRU: 55555554
[   36.170718][   T12] Call Trace:
[   36.170805][   T12]  <TASK>
[   36.170876][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   36.171026][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.171172][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   36.171293][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   36.171411][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   36.171527][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   36.171643][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.171763][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   36.171891][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.172008][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.172129][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.172248][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.172366][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.172491][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.172608][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.172728][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.172857][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.172974][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.173098][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.173218][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.173335][   T12]  kthread (kernel/kthread.c:436)
[   36.173424][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.173573][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.173691][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.173808][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.173965][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.174082][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.174199][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.176334][   T12] ------------[ cut here ]------------
| [   36.176452][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   36.176684][   T12] Modules linked in:
| [   36.177052][   T12] Tainted: [W]=WARN
[   36.177142][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.177291][   T12] Workqueue: netns cleanup_net
[   36.177416][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.177566][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.178471][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   36.178620][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bd18900 RCX: 1ff4000000018eed
[   36.178800][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bd189bc
[   36.179027][   T12] RBP: ff11000009381000 R08: 1fe22000017a3139 R09: ff11000001aed1d0
[   36.179201][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   36.179381][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.179561][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.179767][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.179969][   T12] CR2: 000055b165b71d5c CR3: 000000003174d003 CR4: 0000000000771ef0
[   36.180198][   T12] PKRU: 55555554
[   36.180284][   T12] Call Trace:
[   36.180371][   T12]  <TASK>
[   36.180432][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   36.180586][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.180731][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   36.180898][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   36.181017][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   36.181134][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   36.181251][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.181370][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   36.181490][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.181606][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.181727][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.181895][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.182012][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.182134][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.182253][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.182377][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.182499][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.182617][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.182737][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.182907][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.183025][   T12]  kthread (kernel/kthread.c:436)
[   36.183114][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.183262][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.183380][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.183496][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.183642][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.183764][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.183932][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.186399][   T12] ------------[ cut here ]------------
| [   36.186518][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   36.186747][   T12] Modules linked in:
| [   36.187619][   T12] Tainted: [W]=WARN
[   36.187709][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.187908][   T12] Workqueue: netns cleanup_net
[   36.188075][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.188230][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.188654][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   36.188799][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bd18e40 RCX: 1ff4000000018eed
[   36.189025][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bd18efc
[   36.189200][   T12] RBP: ff1100000a45c000 R08: 1fe22000017a31e1 R09: ff11000001aed1d0
[   36.189372][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   36.189548][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.189723][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.189974][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.190120][   T12] CR2: 000055b165b71d5c CR3: 000000003174d003 CR4: 0000000000771ef0
[   36.190298][   T12] PKRU: 55555554
[   36.190385][   T12] Call Trace:
[   36.190471][   T12]  <TASK>
[   36.190533][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   36.190685][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.190882][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   36.191002][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   36.191120][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   36.191238][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   36.191357][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.191476][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   36.191597][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.191712][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.191831][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.191999][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.192121][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.192240][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.192363][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.192485][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.192610][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.192728][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.192899][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.193019][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.193137][   T12]  kthread (kernel/kthread.c:436)
[   36.193257][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.193405][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.193525][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.193649][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.193797][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.193962][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.194080][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.201841][   T12] ------------[ cut here ]------------
| [   36.201977][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   36.202214][   T12] Modules linked in:
| [   36.202569][   T12] Tainted: [W]=WARN
[   36.202658][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.202806][   T12] Workqueue: netns cleanup_net
[   36.202957][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.203111][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.203553][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   36.203701][   T12] RAX: 00000000ffffffa6 RBX: ff1100000bd19540 RCX: 1ff4000000018eed
[   36.203886][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bd195fc
[   36.204068][   T12] RBP: ff1100000a4c4000 R08: 1fe22000017a32c1 R09: ff11000001aed1d0
[   36.204243][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   36.204417][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.204596][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   36.204803][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.204962][   T12] CR2: 000055fe8e962d5c CR3: 0000000004a94004 CR4: 0000000000771ef0
[   36.205140][   T12] PKRU: 55555554
[   36.205228][   T12] Call Trace:
[   36.205317][   T12]  <TASK>
[   36.205378][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   36.205527][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.205671][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   36.205786][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   36.205913][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   36.206028][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   36.206150][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   36.206270][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   36.206389][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.206503][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.206621][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.206739][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.206864][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.206982][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.207100][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.207220][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.207342][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.207460][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.207583][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.207705][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.207822][   T12]  kthread (kernel/kthread.c:436)
[   36.207920][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.208066][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.208182][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.208304][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.208451][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.208568][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.208686][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.213955][  T352] ------------[ cut here ]------------
| [   36.214134][  T352] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/352
| [   36.214404][  T352] Modules linked in:
| [   36.214884][  T352] Tainted: [W]=WARN
[   36.215028][  T352] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.215236][  T352] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.215453][  T352] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.215984][  T352] RSP: 0018:ffa0000000d27918 EFLAGS: 00010286
[   36.216196][  T352] RAX: 00000000ffffffa6 RBX: ff1100000b85fa80 RCX: 1ff40000001a4ee9
[   36.216436][  T352] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b85fb3c
[   36.216679][  T352] RBP: ff11000008d39000 R08: 1fe220000170bf69 R09: ff11000002782e80
[   36.216938][  T352] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   36.217178][  T352] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008d39000
[   36.217421][  T352] FS:  00007fe688a8c840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   36.217695][  T352] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.217925][  T352] CR2: 00007fe688c8dc20 CR3: 000000000fa7c003 CR4: 0000000000771ef0
[   36.218169][  T352] PKRU: 55555554
[   36.218312][  T352] Call Trace:
[   36.218456][  T352]  <TASK>
[   36.218569][  T352]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.218748][  T352]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.218948][  T352]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.219099][  T352]  register_netdevice (net/core/dev.c:11488)
[   36.219277][  T352]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   36.219484][  T352]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   36.219662][  T352]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   36.219860][  T352]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   36.220038][  T352]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   36.220218][  T352]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   36.220399][  T352]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   36.220578][  T352]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   36.220758][  T352]  ops_init (net/core/net_namespace.c:137)
[   36.220926][  T352]  setup_net (net/core/net_namespace.c:446)
[   36.221073][  T352]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   36.221251][  T352]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   36.221429][  T352]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   36.221611][  T352]  copy_net_ns (net/core/net_namespace.c:579)
[   36.221790][  T352]  create_new_namespaces (kernel/nsproxy.c:132)
[   36.221993][  T352]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   36.222175][  T352]  ksys_unshare (kernel/fork.c:3243)
[   36.222353][  T352]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   36.222530][  T352]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   36.222706][  T352]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   36.222908][  T352]  ? __ia32_sys_open (fs/open.c:1374)
[   36.223086][  T352]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   36.223262][  T352]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   36.223438][  T352]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.223615][  T352]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.223793][  T352]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.223993][  T352]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.224202][  T352] RIP: 0033:0x7fe688d4ebcb
[   36.224388][  T352] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   36.224917][  T352] RSP: 002b:00007ffdd0268728 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   36.225162][  T352] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe688d4ebcb
[   36.225406][  T352] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   36.225645][  T352] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   36.225904][  T352] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdd026a950
[   36.226146][  T352] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdd026b875
| [   36.230401][  T352] ------------[ cut here ]------------
| [   36.230580][  T352] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/352
| [   36.230875][  T352] Modules linked in:
| [   36.231336][  T352] Tainted: [W]=WARN
[   36.231481][  T352] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.231694][  T352] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.231936][  T352] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.232451][  T352] RSP: 0018:ffa0000000d278f8 EFLAGS: 00010286
[   36.232665][  T352] RAX: 00000000ffffffa6 RBX: ff1100000b5f6200 RCX: 1ff40000001a4ee5
[   36.232924][  T352] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b5f62bc
[   36.233169][  T352] RBP: ff110000134f9000 R08: 1fe22000016bec59 R09: ff11000002782e80
[   36.233411][  T352] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   36.233654][  T352] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000134f9000
[   36.233924][  T352] FS:  00007fe688a8c840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   36.234201][  T352] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.234414][  T352] CR2: 00007fe688c8dc20 CR3: 000000000fa7c003 CR4: 0000000000771ef0
[   36.234659][  T352] PKRU: 55555554
[   36.234807][  T352] Call Trace:
[   36.234985][  T352]  <TASK>
[   36.235102][  T352]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.235285][  T352]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.235465][  T352]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.235617][  T352]  register_netdevice (net/core/dev.c:11488)
[   36.235800][  T352]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   36.236036][  T352]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   36.236220][  T352]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   36.236401][  T352]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   36.236581][  T352]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   36.236763][  T352]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   36.236966][  T352]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   36.237148][  T352]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   36.237327][  T352]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   36.237508][  T352]  vti_init_net (net/ipv4/ip_vti.c:517)
[   36.237690][  T352]  ops_init (net/core/net_namespace.c:137)
[   36.237860][  T352]  setup_net (net/core/net_namespace.c:446)
[   36.238008][  T352]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   36.238185][  T352]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   36.238366][  T352]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   36.238549][  T352]  copy_net_ns (net/core/net_namespace.c:579)
[   36.238730][  T352]  create_new_namespaces (kernel/nsproxy.c:132)
[   36.238932][  T352]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   36.239114][  T352]  ksys_unshare (kernel/fork.c:3243)
[   36.239294][  T352]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   36.239475][  T352]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   36.239655][  T352]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   36.239849][  T352]  ? __ia32_sys_open (fs/open.c:1374)
[   36.240038][  T352]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   36.240216][  T352]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   36.240395][  T352]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.240575][  T352]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.240754][  T352]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.240962][  T352]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.241176][  T352] RIP: 0033:0x7fe688d4ebcb
[   36.241361][  T352] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   36.241891][  T352] RSP: 002b:00007ffdd0268728 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   36.242139][  T352] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe688d4ebcb
[   36.242383][  T352] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   36.242625][  T352] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   36.242888][  T352] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdd026a950
[   36.243136][  T352] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdd026b875
| [   36.247752][  T352] ------------[ cut here ]------------
| [   36.247954][  T352] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/352
| [   36.248227][  T352] Modules linked in:
| [   36.248684][  T352] Tainted: [W]=WARN
[   36.248844][  T352] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.249065][  T352] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.249283][  T352] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.249788][  T352] RSP: 0018:ffa0000000d27a78 EFLAGS: 00010286
[   36.250024][  T352] RAX: 00000000ffffffa6 RBX: ff1100000b5f71c0 RCX: 1ff40000001a4f15
[   36.250271][  T352] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b5f727c
[   36.250512][  T352] RBP: ff11000009274000 R08: 1fe22000016bee51 R09: ff11000002782e80
[   36.250753][  T352] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   36.251529][  T352] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009274000
[   36.251904][  T352] FS:  00007fe688a8c840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   36.252234][  T352] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.252501][  T352] CR2: 00007fe688c8dc20 CR3: 000000000fa7c003 CR4: 0000000000771ef0
[   36.252797][  T352] PKRU: 55555554
[   36.253015][  T352] Call Trace:
[   36.253224][  T352]  <TASK>
[   36.253393][  T352]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.253623][  T352]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.253872][  T352]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.254073][  T352]  register_netdevice (net/core/dev.c:11488)
[   36.254303][  T352]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   36.254563][  T352]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.254798][  T352]  register_netdev (net/core/dev.c:11552)
[   36.255064][  T352]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   36.255298][  T352]  ops_init (net/core/net_namespace.c:137)
[   36.255498][  T352]  setup_net (net/core/net_namespace.c:446)
[   36.255695][  T352]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   36.255943][  T352]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   36.256174][  T352]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   36.256405][  T352]  copy_net_ns (net/core/net_namespace.c:579)
[   36.256638][  T352]  create_new_namespaces (kernel/nsproxy.c:132)
[   36.256891][  T352]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   36.257123][  T352]  ksys_unshare (kernel/fork.c:3243)
[   36.257353][  T352]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   36.257583][  T352]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   36.257811][  T352]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   36.258061][  T352]  ? __ia32_sys_open (fs/open.c:1374)
[   36.258294][  T352]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   36.258522][  T352]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   36.258750][  T352]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.258998][  T352]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.259229][  T352]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.259460][  T352]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.259720][  T352] RIP: 0033:0x7fe688d4ebcb
[   36.259982][  T352] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   36.260546][  T352] RSP: 002b:00007ffdd0268728 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   36.260860][  T352] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe688d4ebcb
[   36.261155][  T352] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   36.261446][  T352] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   36.261738][  T352] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdd026a950
[   36.262050][  T352] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdd026b875
| [   36.264772][   T12] ------------[ cut here ]------------
| [   36.264910][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   36.265145][   T12] Modules linked in:
| [   36.265507][   T12] Tainted: [W]=WARN
[   36.265602][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.265753][   T12] Workqueue: netns cleanup_net
[   36.265887][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.266040][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.266464][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   36.266618][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b85e040 RCX: 1ff4000000018ed5
[   36.266794][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b85e0fc
[   36.266985][   T12] RBP: ff11000008bc1000 R08: 1fe220000170bc21 R09: ff11000001aed1d0
[   36.267160][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   36.267339][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.267515][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   36.267720][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.267878][   T12] CR2: 000055fe8e962d5c CR3: 0000000004a94004 CR4: 0000000000771ef0
[   36.268056][   T12] PKRU: 55555554
[   36.268144][   T12] Call Trace:
[   36.268233][   T12]  <TASK>
[   36.268295][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   36.268445][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   36.268594][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   36.268716][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   36.268842][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   36.268965][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   36.269084][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   36.269204][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   36.269325][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   36.269442][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.269562][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   36.269680][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.269796][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   36.269924][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.270045][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.270164][   T12]  process_one_work (kernel/workqueue.c:3314)
[   36.270289][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.270408][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.270531][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.270655][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.270774][   T12]  kthread (kernel/kthread.c:436)
[   36.270873][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.271019][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.271140][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.271258][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.271405][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.271521][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.271641][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.275989][  T352] ------------[ cut here ]------------
| [   36.276131][  T352] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/352
| [   36.276362][  T352] Modules linked in:
| [   36.276728][  T352] Tainted: [W]=WARN
[   36.276828][  T352] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.277005][  T352] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.277173][  T352] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.277632][  T352] RSP: 0018:ffa0000000d27a68 EFLAGS: 00010286
[   36.277796][  T352] RAX: 00000000ffffffa6 RBX: ff1100000f89a3c0 RCX: 1ff40000001a4f13
[   36.278002][  T352] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f89a47c
[   36.278196][  T352] RBP: ff11000005f5c000 R08: 1fe2200001f13491 R09: ff11000002782e80
[   36.278391][  T352] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   36.278586][  T352] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005f5c000
[   36.278781][  T352] FS:  00007fe688a8c840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.279020][  T352] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.279183][  T352] CR2: 000055b165b71d5c CR3: 000000000fa7c001 CR4: 0000000000771ef0
[   36.279380][  T352] PKRU: 55555554
[   36.279477][  T352] Call Trace:
[   36.279573][  T352]  <TASK>
[   36.279639][  T352]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.279770][  T352]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.279910][  T352]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.280010][  T352]  register_netdevice (net/core/dev.c:11488)
[   36.280142][  T352]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   36.280307][  T352]  register_netdev (net/core/dev.c:11552)
[   36.280437][  T352]  sit_init_net (net/ipv6/sit.c:1860)
[   36.280568][  T352]  ops_init (net/core/net_namespace.c:137)
[   36.280667][  T352]  setup_net (net/core/net_namespace.c:446)
[   36.280766][  T352]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   36.280908][  T352]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   36.281041][  T352]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   36.281175][  T352]  copy_net_ns (net/core/net_namespace.c:579)
[   36.281306][  T352]  create_new_namespaces (kernel/nsproxy.c:132)
[   36.281440][  T352]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   36.281572][  T352]  ksys_unshare (kernel/fork.c:3243)
[   36.281702][  T352]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   36.281836][  T352]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   36.281973][  T352]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   36.282106][  T352]  ? __ia32_sys_open (fs/open.c:1374)
[   36.282238][  T352]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   36.282366][  T352]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   36.282496][  T352]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.282625][  T352]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.282754][  T352]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.282892][  T352]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.283055][  T352] RIP: 0033:0x7fe688d4ebcb
[   36.283191][  T352] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   36.283650][  T352] RSP: 002b:00007ffdd0268728 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   36.283849][  T352] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe688d4ebcb
[   36.284049][  T352] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   36.284242][  T352] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   36.284436][  T352] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdd026a950
[   36.284628][  T352] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdd026b875
| [   36.289198][  T352] ------------[ cut here ]------------
| [   36.289334][  T352] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/352
| [   36.289562][  T352] Modules linked in:
| [   36.289935][  T352] Tainted: [W]=WARN
[   36.290033][  T352] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.290195][  T352] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.290365][  T352] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.290828][  T352] RSP: 0018:ffa0000000d27a78 EFLAGS: 00010286
[   36.291003][  T352] RAX: 00000000ffffffa6 RBX: ff11000009b46900 RCX: 1ff40000001a4f15
[   36.291196][  T352] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009b469bc
[   36.291391][  T352] RBP: ff11000008c8c000 R08: 1fe2200001368d39 R09: ff11000002782e80
[   36.291587][  T352] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   36.291781][  T352] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c8c000
[   36.291988][  T352] FS:  00007fe688a8c840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.292218][  T352] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.292378][  T352] CR2: 000055b165b71d5c CR3: 000000000fa7c001 CR4: 0000000000771ef0
[   36.292574][  T352] PKRU: 55555554
[   36.292670][  T352] Call Trace:
[   36.292767][  T352]  <TASK>
[   36.292839][  T352]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.292973][  T352]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.293120][  T352]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.293241][  T352]  register_netdevice (net/core/dev.c:11488)
[   36.293376][  T352]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   36.293537][  T352]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.293667][  T352]  register_netdev (net/core/dev.c:11552)
[   36.293798][  T352]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   36.293938][  T352]  ops_init (net/core/net_namespace.c:137)
[   36.294040][  T352]  setup_net (net/core/net_namespace.c:446)
[   36.294138][  T352]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   36.294268][  T352]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   36.294397][  T352]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   36.294530][  T352]  copy_net_ns (net/core/net_namespace.c:579)
[   36.294661][  T352]  create_new_namespaces (kernel/nsproxy.c:132)
[   36.294793][  T352]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   36.294935][  T352]  ksys_unshare (kernel/fork.c:3243)
[   36.295064][  T352]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   36.295193][  T352]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   36.295324][  T352]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   36.295455][  T352]  ? __ia32_sys_open (fs/open.c:1374)
[   36.295588][  T352]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   36.295716][  T352]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   36.295854][  T352]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.295983][  T352]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.296111][  T352]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.296239][  T352]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.296397][  T352] RIP: 0033:0x7fe688d4ebcb
[   36.296531][  T352] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   36.297006][  T352] RSP: 002b:00007ffdd0268728 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   36.297201][  T352] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe688d4ebcb
[   36.297395][  T352] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   36.297588][  T352] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   36.297784][  T352] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdd026a950
[   36.297993][  T352] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdd026b875
| [   36.354413][  T353] ------------[ cut here ]------------
| [   36.354566][  T353] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/353
| [   36.354800][  T353] Modules linked in:
| [   36.355186][  T353] Tainted: [W]=WARN
[   36.355285][  T353] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.355446][  T353] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.355617][  T353] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.356090][  T353] RSP: 0018:ffa0000000d27a80 EFLAGS: 00010286
[   36.356255][  T353] RAX: 00000000ffffffa6 RBX: ff1100000b5f78c0 RCX: 1ff40000001a4f16
[   36.356448][  T353] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b5f797c
[   36.356680][  T353] RBP: ff1100000928c000 R08: 1fe22000016bef31 R09: ff1100000dda0b80
[   36.356886][  T353] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   36.357077][  T353] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000928c000
[   36.357282][  T353] FS:  00007fd6c4b21840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   36.357512][  T353] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.357675][  T353] CR2: 00007fd6c4d28430 CR3: 0000000004a72006 CR4: 0000000000771ef0
[   36.357886][  T353] PKRU: 55555554
[   36.357983][  T353] Call Trace:
[   36.358080][  T353]  <TASK>
[   36.358148][  T353]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.358281][  T353]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.358413][  T353]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.358510][  T353]  register_netdevice (net/core/dev.c:11488)
[   36.358642][  T353]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   36.358803][  T353]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   36.358952][  T353]  register_netdev (net/core/dev.c:11552)
[   36.359081][  T353]  loopback_net_init (drivers/net/loopback.c:218)
[   36.359213][  T353]  ops_init (net/core/net_namespace.c:137)
[   36.359313][  T353]  setup_net (net/core/net_namespace.c:446)
[   36.359411][  T353]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   36.359538][  T353]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   36.359669][  T353]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   36.359801][  T353]  copy_net_ns (net/core/net_namespace.c:579)
[   36.359944][  T353]  create_new_namespaces (kernel/nsproxy.c:132)
[   36.360078][  T353]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   36.360207][  T353]  ksys_unshare (kernel/fork.c:3243)
[   36.360338][  T353]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   36.360468][  T353]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   36.360598][  T353]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   36.360728][  T353]  ? __ia32_sys_open (fs/open.c:1374)
[   36.360870][  T353]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   36.360999][  T353]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   36.361146][  T353]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.361274][  T353]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.361402][  T353]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.361531][  T353]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.361693][  T353] RIP: 0033:0x7fd6c4de3bcb
[   36.361837][  T353] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   36.362303][  T353] RSP: 002b:00007fff0497e088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   36.362499][  T353] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd6c4de3bcb
[   36.362692][  T353] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   36.362897][  T353] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   36.363091][  T353] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff049802b0
[   36.363283][  T353] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff04980875
| [   36.367468][  T353] ------------[ cut here ]------------
| [   36.367605][  T353] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/353
| [   36.367830][  T353] Modules linked in:
| [   36.368205][  T353] Tainted: [W]=WARN
[   36.368303][  T353] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.368466][  T353] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.368634][  T353] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.369101][  T353] RSP: 0018:ffa0000000d27918 EFLAGS: 00010286
[   36.369264][  T353] RAX: 00000000ffffffa6 RBX: ff1100000a640c80 RCX: 1ff40000001a4ee9
[   36.369455][  T353] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a640d3c
[   36.369648][  T353] RBP: ff110000176cc000 R08: 1fe22000014c81a9 R09: ff1100000dda0b80
[   36.369844][  T353] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   36.370043][  T353] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000176cc000
[   36.370237][  T353] FS:  00007fd6c4b21840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   36.370466][  T353] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.370627][  T353] CR2: 00007fd6c4d28430 CR3: 0000000004a72006 CR4: 0000000000771ef0
[   36.370823][  T353] PKRU: 55555554
[   36.370930][  T353] Call Trace:
[   36.371026][  T353]  <TASK>
[   36.371092][  T353]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.371221][  T353]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.371352][  T353]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.371452][  T353]  register_netdevice (net/core/dev.c:11488)
[   36.371583][  T353]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   36.371745][  T353]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   36.371886][  T353]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   36.372016][  T353]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   36.372145][  T353]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   36.372274][  T353]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   36.372404][  T353]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   36.372534][  T353]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   36.372667][  T353]  ops_init (net/core/net_namespace.c:137)
[   36.372767][  T353]  setup_net (net/core/net_namespace.c:446)
[   36.372873][  T353]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   36.373002][  T353]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   36.373135][  T353]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   36.373266][  T353]  copy_net_ns (net/core/net_namespace.c:579)
[   36.373400][  T353]  create_new_namespaces (kernel/nsproxy.c:132)
[   36.373534][  T353]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   36.373665][  T353]  ksys_unshare (kernel/fork.c:3243)
[   36.373797][  T353]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   36.373941][  T353]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   36.374070][  T353]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   36.374200][  T353]  ? __ia32_sys_open (fs/open.c:1374)
[   36.374332][  T353]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   36.374463][  T353]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   36.374596][  T353]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.374724][  T353]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.374865][  T353]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.374995][  T353]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.375155][  T353] RIP: 0033:0x7fd6c4de3bcb
[   36.375290][  T353] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   36.375751][  T353] RSP: 002b:00007fff0497e088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   36.375963][  T353] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd6c4de3bcb
[   36.376158][  T353] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   36.376352][  T353] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   36.376544][  T353] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff049802b0
[   36.376738][  T353] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff04980875
| [   36.380517][  T353] ------------[ cut here ]------------
| [   36.380655][  T353] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/353
| [   36.380893][  T353] Modules linked in:
| [   36.381258][  T353] Tainted: [W]=WARN
[   36.381359][  T353] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.381527][  T353] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.381698][  T353] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.382184][  T353] RSP: 0018:ffa0000000d278f8 EFLAGS: 00010286
[   36.382348][  T353] RAX: 00000000ffffffa6 RBX: ff1100000d959a80 RCX: 1ff40000001a4ee5
[   36.382542][  T353] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d959b3c
[   36.382737][  T353] RBP: ff11000008b99000 R08: 1fe2200001b2b369 R09: ff1100000dda0b80
[   36.382943][  T353] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   36.383140][  T353] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b99000
[   36.383336][  T353] FS:  00007fd6c4b21840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   36.383567][  T353] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.383731][  T353] CR2: 00007fd6c4d28430 CR3: 0000000004a72006 CR4: 0000000000771ef0
[   36.383941][  T353] PKRU: 55555554
[   36.384040][  T353] Call Trace:
[   36.384138][  T353]  <TASK>
[   36.384206][  T353]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.384336][  T353]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.384468][  T353]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.384568][  T353]  register_netdevice (net/core/dev.c:11488)
[   36.384700][  T353]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   36.384879][  T353]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   36.385013][  T353]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   36.385145][  T353]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   36.385278][  T353]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   36.385411][  T353]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   36.385544][  T353]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   36.385677][  T353]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   36.385811][  T353]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   36.385957][  T353]  vti_init_net (net/ipv4/ip_vti.c:517)
[   36.386089][  T353]  ops_init (net/core/net_namespace.c:137)
[   36.386191][  T353]  setup_net (net/core/net_namespace.c:446)
[   36.386291][  T353]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   36.386421][  T353]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   36.386555][  T353]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   36.386689][  T353]  copy_net_ns (net/core/net_namespace.c:579)
[   36.386822][  T353]  create_new_namespaces (kernel/nsproxy.c:132)
[   36.386966][  T353]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   36.387098][  T353]  ksys_unshare (kernel/fork.c:3243)
[   36.387228][  T353]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   36.387359][  T353]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   36.387490][  T353]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   36.387623][  T353]  ? __ia32_sys_open (fs/open.c:1374)
[   36.387759][  T353]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   36.387900][  T353]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   36.388030][  T353]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.388162][  T353]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.388292][  T353]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.388425][  T353]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.388591][  T353] RIP: 0033:0x7fd6c4de3bcb
[   36.388730][  T353] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   36.389208][  T353] RSP: 002b:00007fff0497e088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   36.389405][  T353] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd6c4de3bcb
[   36.389602][  T353] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   36.389798][  T353] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   36.390006][  T353] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff049802b0
[   36.390203][  T353] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff04980875
| [   36.394370][  T353] ------------[ cut here ]------------
| [   36.394505][  T353] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/353
| [   36.394732][  T353] Modules linked in:
| [   36.395107][  T353] Tainted: [W]=WARN
[   36.395208][  T353] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.395368][  T353] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.395538][  T353] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.396009][  T353] RSP: 0018:ffa0000000d27a78 EFLAGS: 00010286
[   36.396172][  T353] RAX: 00000000ffffffa6 RBX: ff1100000d958ac0 RCX: 1ff40000001a4f15
[   36.396365][  T353] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d958b7c
[   36.396561][  T353] RBP: ff11000007c29000 R08: 1fe2200001b2b171 R09: ff1100000dda0b80
[   36.396756][  T353] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   36.396962][  T353] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007c29000
[   36.397157][  T353] FS:  00007fd6c4b21840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   36.397383][  T353] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.397545][  T353] CR2: 00007fd6c4d28430 CR3: 0000000004a72006 CR4: 0000000000771ef0
[   36.397740][  T353] PKRU: 55555554
[   36.397843][  T353] Call Trace:
[   36.397945][  T353]  <TASK>
[   36.398012][  T353]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.398142][  T353]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.398273][  T353]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.398373][  T353]  register_netdevice (net/core/dev.c:11488)
[   36.398506][  T353]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   36.398668][  T353]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.398802][  T353]  register_netdev (net/core/dev.c:11552)
[   36.398942][  T353]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   36.399075][  T353]  ops_init (net/core/net_namespace.c:137)
[   36.399174][  T353]  setup_net (net/core/net_namespace.c:446)
[   36.399275][  T353]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   36.399404][  T353]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   36.399534][  T353]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   36.399667][  T353]  copy_net_ns (net/core/net_namespace.c:579)
[   36.399800][  T353]  create_new_namespaces (kernel/nsproxy.c:132)
[   36.399944][  T353]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   36.400078][  T353]  ksys_unshare (kernel/fork.c:3243)
[   36.400210][  T353]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   36.400339][  T353]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   36.400468][  T353]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   36.400597][  T353]  ? __ia32_sys_open (fs/open.c:1374)
[   36.400730][  T353]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   36.400870][  T353]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   36.400999][  T353]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.401131][  T353]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.401262][  T353]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.401391][  T353]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.401554][  T353] RIP: 0033:0x7fd6c4de3bcb
[   36.401690][  T353] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   36.402165][  T353] RSP: 002b:00007fff0497e088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   36.402361][  T353] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd6c4de3bcb
[   36.402555][  T353] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   36.402747][  T353] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   36.402948][  T353] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff049802b0
[   36.403141][  T353] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff04980875
| [   36.410381][  T353] ------------[ cut here ]------------
| [   36.410599][  T353] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/353
| [   36.410971][  T353] Modules linked in:
| [   36.411534][  T353] Tainted: [W]=WARN
[   36.411686][  T353] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.411955][  T353] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.412219][  T353] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.412943][  T353] RSP: 0018:ffa0000000d27a68 EFLAGS: 00010286
[   36.413198][  T353] RAX: 00000000ffffffa6 RBX: ff11000005099380 RCX: 1ff40000001a4f13
[   36.413500][  T353] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000509943c
[   36.413799][  T353] RBP: ff11000007911000 R08: 1fe2200000a13289 R09: ff1100000dda0b80
[   36.414110][  T353] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   36.414412][  T353] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007911000
[   36.414714][  T353] FS:  00007fd6c4b21840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   36.415079][  T353] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.415333][  T353] CR2: 000055fe8e962d5c CR3: 0000000004a72005 CR4: 0000000000771ef0
[   36.415634][  T353] PKRU: 55555554
[   36.415787][  T353] Call Trace:
[   36.415947][  T353]  <TASK>
[   36.416054][  T353]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.416257][  T353]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.416460][  T353]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.416614][  T353]  register_netdevice (net/core/dev.c:11488)
[   36.416818][  T353]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   36.417087][  T353]  register_netdev (net/core/dev.c:11552)
[   36.417291][  T353]  sit_init_net (net/ipv6/sit.c:1860)
[   36.417495][  T353]  ops_init (net/core/net_namespace.c:137)
[   36.417650][  T353]  setup_net (net/core/net_namespace.c:446)
[   36.417802][  T353]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   36.418019][  T353]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   36.418221][  T353]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   36.418428][  T353]  copy_net_ns (net/core/net_namespace.c:579)
[   36.418635][  T353]  create_new_namespaces (kernel/nsproxy.c:132)
[   36.418866][  T353]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   36.419075][  T353]  ksys_unshare (kernel/fork.c:3243)
[   36.419276][  T353]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   36.419478][  T353]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   36.419678][  T353]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   36.419896][  T353]  ? __ia32_sys_open (fs/open.c:1374)
[   36.420104][  T353]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   36.420306][  T353]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   36.420506][  T353]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.420708][  T353]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.420926][  T353]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.421130][  T353]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.421379][  T353] RIP: 0033:0x7fd6c4de3bcb
[   36.421587][  T353] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   36.422320][  T353] RSP: 002b:00007fff0497e088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   36.422621][  T353] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd6c4de3bcb
[   36.422934][  T353] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   36.423237][  T353] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   36.423536][  T353] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff049802b0
[   36.423843][  T353] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff04980875
| [   36.434349][  T353] ------------[ cut here ]------------
| [   36.434557][  T353] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/353
| [   36.434914][  T353] Modules linked in:
| [   36.435485][  T353] Tainted: [W]=WARN
[   36.435639][  T353] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.435905][  T353] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.436169][  T353] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.436906][  T353] RSP: 0018:ffa0000000d27a78 EFLAGS: 00010286
[   36.437160][  T353] RAX: 00000000ffffffa6 RBX: ff1100000f98be00 RCX: 1ff40000001a4f15
[   36.437458][  T353] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f98bebc
[   36.437756][  T353] RBP: ff110000176a9000 R08: 1fe2200001f317d9 R09: ff1100000dda0b80
[   36.438074][  T353] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   36.438374][  T353] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000176a9000
[   36.438677][  T353] FS:  00007fd6c4b21840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   36.439043][  T353] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.439298][  T353] CR2: 000055fe8e962d5c CR3: 0000000004a72005 CR4: 0000000000771ef0
[   36.439599][  T353] PKRU: 55555554
[   36.439748][  T353] Call Trace:
[   36.439909][  T353]  <TASK>
[   36.440014][  T353]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.440216][  T353]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.440418][  T353]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.440575][  T353]  register_netdevice (net/core/dev.c:11488)
[   36.440779][  T353]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   36.441096][  T353]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.441305][  T353]  register_netdev (net/core/dev.c:11552)
[   36.441508][  T353]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   36.441713][  T353]  ops_init (net/core/net_namespace.c:137)
[   36.441880][  T353]  setup_net (net/core/net_namespace.c:446)
[   36.442035][  T353]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   36.442238][  T353]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   36.442439][  T353]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   36.442645][  T353]  copy_net_ns (net/core/net_namespace.c:579)
[   36.442859][  T353]  create_new_namespaces (kernel/nsproxy.c:132)
[   36.443065][  T353]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   36.443265][  T353]  ksys_unshare (kernel/fork.c:3243)
[   36.443468][  T353]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   36.443669][  T353]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   36.443884][  T353]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   36.444086][  T353]  ? __ia32_sys_open (fs/open.c:1374)
[   36.444292][  T353]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   36.444492][  T353]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   36.444693][  T353]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.444904][  T353]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.445109][  T353]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.445311][  T353]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.445561][  T353] RIP: 0033:0x7fd6c4de3bcb
[   36.445771][  T353] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   36.446506][  T353] RSP: 002b:00007fff0497e088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   36.446810][  T353] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd6c4de3bcb
[   36.447120][  T353] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   36.447423][  T353] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   36.447725][  T353] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff049802b0
[   36.448042][  T353] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff04980875
| [   36.562586][  T356] ------------[ cut here ]------------
| [   36.562751][  T356] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/356
| [   36.563003][  T356] Modules linked in:
| [   36.563388][  T356] Tainted: [W]=WARN
[   36.563493][  T356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.563662][  T356] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.563848][  T356] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.564335][  T356] RSP: 0018:ffa0000000ef6e30 EFLAGS: 00010286
[   36.564505][  T356] RAX: 00000000ffffffa6 RBX: ff1100000f89b000 RCX: 1ff40000001ded8c
[   36.564705][  T356] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f89b0bc
[   36.564922][  T356] RBP: ff1100000cbcc000 R08: 1fe2200001f13619 R09: ff110000051cd180
[   36.565121][  T356] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   36.565320][  T356] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001295ee10
[   36.565524][  T356] FS:  00007f3dcbf8e840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.565762][  T356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.565939][  T356] CR2: 00007f5fdd709498 CR3: 000000000f40b005 CR4: 0000000000771ef0
[   36.566143][  T356] PKRU: 55555554
[   36.566244][  T356] Call Trace:
[   36.566346][  T356]  <TASK>
[   36.566415][  T356]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.566552][  T356]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.566656][  T356]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   36.566826][  T356]  __dev_notify_flags (net/core/dev.c:9787)
[   36.566973][  T356]  ? netif_change_name (net/core/dev.c:1495)
[   36.567111][  T356]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   36.567247][  T356]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   36.567379][  T356]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   36.567513][  T356]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   36.567651][  T356]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.567800][  T356]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   36.567946][  T356]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   36.568080][  T356]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   36.568214][  T356]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   36.568350][  T356]  veth_newlink (drivers/net/veth.c:1871)
[   36.568485][  T356]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   36.568618][  T356]  ? kasan_save_stack (mm/kasan/common.c:57)
[   36.568755][  T356]  ? kasan_save_track (mm/kasan/common.c:78)
[   36.568900][  T356]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   36.569052][  T356]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   36.569185][  T356]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   36.569320][  T356]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   36.569457][  T356]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   36.569595][  T356]  ? rtnl_create_link (net/core/rtnetlink.c:3733)
[   36.569731][  T356]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   36.569876][  T356]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   36.570012][  T356]  ? __dev_get_by_name (net/core/dev.c:883)
[   36.570146][  T356]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   36.570286][  T356]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   36.570424][  T356]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   36.570561][  T356]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.570695][  T356]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.570831][  T356]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.570974][  T356]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   36.571108][  T356]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.571249][  T356]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.571391][  T356]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.571529][  T356]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   36.571666][  T356]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.571801][  T356]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.571946][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.572082][  T356]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.572216][  T356]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.572351][  T356]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   36.572485][  T356]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.572618][  T356]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.572757][  T356]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   36.572901][  T356]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   36.573037][  T356]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.573175][  T356]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.573310][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.573448][  T356]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   36.573583][  T356]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   36.573718][  T356]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   36.573870][  T356]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   36.574005][  T356]  ? copy_msghdr_from_user (net/socket.c:2635)
[   36.574154][  T356]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   36.574324][  T356]  ? move_addr_to_kernel (net/socket.c:258)
[   36.574465][  T356]  ___sys_sendmsg (net/socket.c:2752)
[   36.574599][  T356]  ? copy_msghdr_from_user (net/socket.c:2603)
[   36.574737][  T356]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.574920][  T356]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   36.575058][  T356]  __sys_sendmsg (net/socket.c:2784)
[   36.575193][  T356]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   36.575331][  T356]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   36.575468][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.575603][  T356]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.575737][  T356]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.575883][  T356]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.576015][  T356]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.576182][  T356] RIP: 0033:0x7f3dcc1c808e
[   36.576327][  T356] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   36.576807][  T356] RSP: 002b:00007ffe3b714e20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.577020][  T356] RAX: ffffffffffffffda RBX: 00007ffe3b7155d8 RCX: 00007f3dcc1c808e
[   36.577232][  T356] RDX: 0000000000000000 RSI: 00007ffe3b714ed0 RDI: 0000000000000005
[   36.577433][  T356] RBP: 00007ffe3b714e30 R08: 0000000000000000 R09: 0000000000000000
[   36.577641][  T356] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d3
[   36.577846][  T356] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe3b715590
| [   36.585431][  T356] ------------[ cut here ]------------
| [   36.585579][  T356] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/356
| [   36.585814][  T356] Modules linked in:
| [   36.586693][  T356] Tainted: [W]=WARN
[   36.586801][  T356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.587086][  T356] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.587262][  T356] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.587740][  T356] RSP: 0018:ffa0000000ef71b0 EFLAGS: 00010286
[   36.587969][  T356] RAX: 00000000ffffffa6 RBX: ff11000005098040 RCX: 1ff40000001dedfc
[   36.588170][  T356] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000050980fc
[   36.588372][  T356] RBP: ff1100000cbc9000 R08: 1fe2200000a13021 R09: ff110000051cd180
[   36.588569][  T356] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   36.588767][  T356] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa8c03b20
[   36.589031][  T356] FS:  00007f3dcbf8e840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.589260][  T356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.589428][  T356] CR2: 00007f5fdd709498 CR3: 000000000f40b005 CR4: 0000000000771ef0
[   36.589630][  T356] PKRU: 55555554
[   36.589731][  T356] Call Trace:
[   36.589892][  T356]  <TASK>
[   36.589964][  T356]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.590103][  T356]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.590204][  T356]  __dev_notify_flags (net/core/dev.c:9787)
[   36.590337][  T356]  ? netif_change_name (net/core/dev.c:1495)
[   36.590472][  T356]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   36.590605][  T356]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   36.590745][  T356]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   36.590942][  T356]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   36.591076][  T356]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   36.591209][  T356]  ? __dev_get_by_name (net/core/dev.c:883)
[   36.591344][  T356]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   36.591488][  T356]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   36.591629][  T356]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   36.591765][  T356]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.591958][  T356]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.592091][  T356]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.592223][  T356]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   36.592355][  T356]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.592491][  T356]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.592624][  T356]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.592758][  T356]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   36.592950][  T356]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.593084][  T356]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.593217][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.593354][  T356]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.593487][  T356]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.593620][  T356]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   36.593755][  T356]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.593951][  T356]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.594086][  T356]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   36.594221][  T356]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   36.594357][  T356]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.594495][  T356]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.594629][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.594763][  T356]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   36.594959][  T356]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   36.595094][  T356]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   36.595236][  T356]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   36.595371][  T356]  ? copy_msghdr_from_user (net/socket.c:2635)
[   36.595504][  T356]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   36.595668][  T356]  ? move_addr_to_kernel (net/socket.c:258)
[   36.595805][  T356]  ___sys_sendmsg (net/socket.c:2752)
[   36.596001][  T356]  ? copy_msghdr_from_user (net/socket.c:2603)
[   36.596138][  T356]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.596308][  T356]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   36.596447][  T356]  __sys_sendmsg (net/socket.c:2784)
[   36.596581][  T356]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   36.596718][  T356]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   36.596913][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.597047][  T356]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.597180][  T356]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.597312][  T356]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.597443][  T356]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.597609][  T356] RIP: 0033:0x7f3dcc1c808e
[   36.597749][  T356] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   36.598284][  T356] RSP: 002b:00007ffe3b714e20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.598488][  T356] RAX: ffffffffffffffda RBX: 00007ffe3b7155d8 RCX: 00007f3dcc1c808e
[   36.598684][  T356] RDX: 0000000000000000 RSI: 00007ffe3b714ed0 RDI: 0000000000000005
[   36.598943][  T356] RBP: 00007ffe3b714e30 R08: 0000000000000000 R09: 0000000000000000
[   36.599142][  T356] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d3
[   36.599343][  T356] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe3b715590
| [   36.631776][  T357] ------------[ cut here ]------------
| [   36.631939][  T357] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/357
| [   36.632170][  T357] Modules linked in:
| [   36.632537][  T357] Tainted: [W]=WARN
[   36.632636][  T357] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.632798][  T357] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.632980][  T357] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.633441][  T357] RSP: 0018:ffa0000000ef7020 EFLAGS: 00010286
[   36.633604][  T357] RAX: 00000000ffffffa6 RBX: ff1100000b5f7a80 RCX: 1ff40000001dedca
[   36.633799][  T357] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b5f7b3c
[   36.634004][  T357] RBP: ff1100000cbc9000 R08: 1fe22000016bef69 R09: ff11000002785158
[   36.634202][  T357] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   36.634394][  T357] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   36.634590][  T357] FS:  00007ff27ad75840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   36.634820][  T357] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.635080][  T357] CR2: 000000002f062988 CR3: 000000000e7c9004 CR4: 0000000000771ef0
[   36.635275][  T357] PKRU: 55555554
[   36.635372][  T357] Call Trace:
[   36.635469][  T357]  <TASK>
[   36.635537][  T357]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.635669][  T357]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.635768][  T357]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   36.635974][  T357]  __dev_notify_flags (net/core/dev.c:9787)
[   36.636210][  T357]  ? netif_change_name (net/core/dev.c:1495)
[   36.636342][  T357]  ? __dev_change_flags (net/core/dev.c:9752)
[   36.636474][  T357]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   36.636604][  T357]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.636735][  T357]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   36.636950][  T357]  netif_change_flags (net/core/dev.c:9820)
[   36.637082][  T357]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   36.637215][  T357]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   36.637348][  T357]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   36.637479][  T357]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   36.637642][  T357]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.637773][  T357]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.637995][  T357]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   36.638127][  T357]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.638259][  T357]  ? __kernel_text_address (kernel/extable.c:79)
[   36.638390][  T357]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.638523][  T357]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.638653][  T357]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   36.638784][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.638997][  T357]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.639128][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.639259][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.639390][  T357]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   36.639524][  T357]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   36.639654][  T357]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   36.639786][  T357]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   36.640011][  T357]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   36.640145][  T357]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   36.640279][  T357]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   36.640410][  T357]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.640538][  T357]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.640668][  T357]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.640797][  T357]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   36.640985][  T357]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.641116][  T357]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.641245][  T357]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.641376][  T357]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.641505][  T357]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.641635][  T357]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.641764][  T357]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   36.641964][  T357]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.642092][  T357]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.642220][  T357]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.642351][  T357]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.642481][  T357]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.642611][  T357]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   36.642742][  T357]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.642909][  T357]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.643043][  T357]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   36.643171][  T357]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   36.643300][  T357]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.643432][  T357]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.643562][  T357]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.643692][  T357]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   36.643822][  T357]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   36.643965][  T357]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   36.644098][  T357]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   36.644228][  T357]  ? copy_msghdr_from_user (net/socket.c:2635)
[   36.644357][  T357]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   36.644523][  T357]  ? move_addr_to_kernel (net/socket.c:258)
[   36.644654][  T357]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.644783][  T357]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.644924][  T357]  ___sys_sendmsg (net/socket.c:2752)
[   36.645054][  T357]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   36.645214][  T357]  ? copy_msghdr_from_user (net/socket.c:2603)
[   36.645355][  T357]  __sys_sendmsg (net/socket.c:2784)
[   36.645484][  T357]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   36.645611][  T357]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   36.645774][  T357]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   36.645915][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.646046][  T357]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.646174][  T357]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.646303][  T357]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.646433][  T357]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.646596][  T357] RIP: 0033:0x7ff27afaf08e
[   36.646733][  T357] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   36.647204][  T357] RSP: 002b:00007ffede905410 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.647402][  T357] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff27afaf08e
[   36.647595][  T357] RDX: 0000000000000000 RSI: 00007ffede9054c0 RDI: 0000000000000005
[   36.647790][  T357] RBP: 00007ffede905420 R08: 0000000000000000 R09: 0000000000000000
[   36.647998][  T357] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d3
[   36.648194][  T357] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffede905b90
| [   36.686022][  T358] ------------[ cut here ]------------
| [   36.686171][  T358] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/358
| [   36.686455][  T358] Modules linked in:
| [   36.687361][  T358] Tainted: [W]=WARN
[   36.687463][  T358] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.687635][  T358] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.687901][  T358] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.688566][  T358] RSP: 0018:ffa0000000f07020 EFLAGS: 00010286
[   36.688753][  T358] RAX: 00000000ffffffa6 RBX: ff11000009a98740 RCX: 1ff40000001e0dca
[   36.689056][  T358] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a987fc
[   36.689356][  T358] RBP: ff1100000cbcc000 R08: 1fe2200001353101 R09: ff1100000f9d0b58
[   36.689608][  T358] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   36.689803][  T358] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   36.690093][  T358] FS:  00007f3edd4b6840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   36.690344][  T358] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.690512][  T358] CR2: 0000000027ed5988 CR3: 000000000b282001 CR4: 0000000000771ef0
[   36.690704][  T358] PKRU: 55555554
[   36.690801][  T358] Call Trace:
[   36.690910][  T358]  <TASK>
[   36.690976][  T358]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.691109][  T358]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.691208][  T358]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   36.691358][  T358]  __dev_notify_flags (net/core/dev.c:9787)
[   36.691553][  T358]  ? netif_change_name (net/core/dev.c:1495)
[   36.691746][  T358]  ? __dev_change_flags (net/core/dev.c:9752)
[   36.691966][  T358]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   36.692147][  T358]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.692284][  T358]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   36.692477][  T358]  netif_change_flags (net/core/dev.c:9820)
[   36.692697][  T358]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   36.692918][  T358]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   36.693109][  T358]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   36.693244][  T358]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   36.693483][  T358]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.693679][  T358]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.693901][  T358]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   36.694068][  T358]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.694201][  T358]  ? __kernel_text_address (kernel/extable.c:79)
[   36.694333][  T358]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.694522][  T358]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.694685][  T358]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   36.694816][  T358]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.694960][  T358]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.695091][  T358]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.695221][  T358]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.695349][  T358]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   36.695479][  T358]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   36.695615][  T358]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   36.695803][  T358]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   36.695971][  T358]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   36.696104][  T358]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   36.696236][  T358]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   36.696369][  T358]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.696498][  T358]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.696628][  T358]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.696758][  T358]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   36.696900][  T358]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.697032][  T358]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.697160][  T358]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.697292][  T358]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.697422][  T358]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.697554][  T358]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.697684][  T358]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   36.697815][  T358]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.697957][  T358]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.698112][  T358]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.698245][  T358]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.698378][  T358]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.698569][  T358]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   36.698759][  T358]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.698972][  T358]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.699168][  T358]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   36.699364][  T358]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   36.699540][  T358]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.699676][  T358]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.699807][  T358]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.699991][  T358]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   36.700127][  T358]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   36.700257][  T358]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   36.700389][  T358]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   36.700521][  T358]  ? copy_msghdr_from_user (net/socket.c:2635)
[   36.700650][  T358]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   36.700813][  T358]  ? move_addr_to_kernel (net/socket.c:258)
[   36.700960][  T358]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.701091][  T358]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.701224][  T358]  ___sys_sendmsg (net/socket.c:2752)
[   36.701353][  T358]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   36.701514][  T358]  ? copy_msghdr_from_user (net/socket.c:2603)
[   36.701656][  T358]  __sys_sendmsg (net/socket.c:2784)
[   36.701787][  T358]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   36.701928][  T358]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   36.702090][  T358]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   36.702219][  T358]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.702349][  T358]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.702478][  T358]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.702608][  T358]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.702739][  T358]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.702909][  T358] RIP: 0033:0x7f3edd6f008e
[   36.703045][  T358] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   36.703507][  T358] RSP: 002b:00007ffddee62a00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.703704][  T358] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f3edd6f008e
[   36.703911][  T358] RDX: 0000000000000000 RSI: 00007ffddee62ab0 RDI: 0000000000000005
[   36.704105][  T358] RBP: 00007ffddee62a10 R08: 0000000000000000 R09: 0000000000000000
[   36.704299][  T358] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d3
[   36.704496][  T358] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffddee63180
| [   36.706494][   T94] ------------[ cut here ]------------
| [   36.706627][   T94] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/94
| [   36.706884][   T94] Modules linked in:
| [   36.707441][   T94] Tainted: [W]=WARN
[   36.707532][   T94] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.707685][   T94] Workqueue: events_unbound linkwatch_event
[   36.707898][   T94] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.708104][   T94] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.708529][   T94] RSP: 0018:ffa00000004b79e0 EFLAGS: 00010286
[   36.708685][   T94] RAX: 00000000ffffffa6 RBX: ff1100000f98b1c0 RCX: 1ff4000000096f02
[   36.708917][   T94] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f98b27c
[   36.709124][   T94] RBP: ff1100000cbc9000 R08: 1fe2200001f31651 R09: ff1100000dda51a8
[   36.709328][   T94] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   36.709536][   T94] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   36.709743][   T94] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   36.709995][   T94] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.710168][   T94] CR2: 000055fe8e962d5c CR3: 0000000004a94004 CR4: 0000000000771ef0
[   36.710377][   T94] PKRU: 55555554
[   36.710480][   T94] Call Trace:
[   36.710583][   T94]  <TASK>
[   36.710656][   T94]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.710796][   T94]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.710945][   T94]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.711047][   T94]  netif_state_change (net/core/dev.c:1605)
[   36.711175][   T94]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   36.711333][   T94]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   36.711462][   T94]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   36.711591][   T94]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.711724][   T94]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   36.711859][   T94]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   36.711990][   T94]  process_one_work (kernel/workqueue.c:3314)
[   36.712123][   T94]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   36.712251][   T94]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.712387][   T94]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   36.712515][   T94]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.712641][   T94]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   36.712771][   T94]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   36.712906][   T94]  kthread (kernel/kthread.c:436)
[   36.713001][   T94]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.713158][   T94]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.713286][   T94]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.713416][   T94]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   36.713571][   T94]  ? trace_x86_fpu_regs_deactivated (./arch/x86/include/asm/trace/fpu.h:52 (discriminator 22))
[   36.713727][   T94]  ? save_fpregs_to_fpstate (arch/x86/kernel/fpu/core.c:144)
[   36.713864][   T94]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.713992][   T94]  ? kthread_affine_node (kernel/kthread.c:378)
[   36.714119][   T94]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.740758][  T359] ------------[ cut here ]------------
| [   36.740928][  T359] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/359
| [   36.741151][  T359] Modules linked in:
| [   36.741516][  T359] Tainted: [W]=WARN
[   36.741618][  T359] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.741781][  T359] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.742047][  T359] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.742511][  T359] RSP: 0018:ffa0000000f07050 EFLAGS: 00010286
[   36.742675][  T359] RAX: 00000000ffffffa6 RBX: ff11000009a9a900 RCX: 1ff40000001e0dd0
[   36.742964][  T359] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a9a9bc
[   36.743157][  T359] RBP: ff1100000cbc9000 R08: 1fe2200001353539 R09: ff1100000f9d5180
[   36.743351][  T359] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   36.743546][  T359] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   36.743742][  T359] FS:  00007f587cd70840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   36.744040][  T359] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.744203][  T359] CR2: 00007f587d0401a0 CR3: 00000000119dc001 CR4: 0000000000771ef0
[   36.744399][  T359] PKRU: 55555554
[   36.744496][  T359] Call Trace:
[   36.744593][  T359]  <TASK>
[   36.744660][  T359]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.744791][  T359]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   36.744934][  T359]  notifier_call_chain (kernel/notifier.c:85)
[   36.745067][  T359]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   36.745198][  T359]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.745328][  T359]  ? netif_set_group (net/core/dev.c:9947)
[   36.745463][  T359]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   36.745625][  T359]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   36.745757][  T359]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   36.745899][  T359]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   36.746030][  T359]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   36.746192][  T359]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.746322][  T359]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.746454][  T359]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   36.746584][  T359]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.746716][  T359]  ? __kernel_text_address (kernel/extable.c:79)
[   36.746860][  T359]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.746995][  T359]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.747125][  T359]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   36.747255][  T359]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.747385][  T359]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.747514][  T359]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.747643][  T359]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.747772][  T359]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   36.747911][  T359]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   36.748041][  T359]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   36.748171][  T359]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   36.748306][  T359]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   36.748440][  T359]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   36.748573][  T359]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.748703][  T359]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.748840][  T359]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.748974][  T359]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   36.749104][  T359]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.749235][  T359]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.749365][  T359]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.749495][  T359]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.749625][  T359]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.749755][  T359]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.749896][  T359]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   36.750026][  T359]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.750156][  T359]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.750285][  T359]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.750417][  T359]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.750547][  T359]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.750676][  T359]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   36.750806][  T359]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.750948][  T359]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.751083][  T359]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   36.751213][  T359]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   36.751348][  T359]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.751479][  T359]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.751609][  T359]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.751741][  T359]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   36.751885][  T359]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   36.752017][  T359]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   36.752149][  T359]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   36.752279][  T359]  ? copy_msghdr_from_user (net/socket.c:2635)
[   36.752409][  T359]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   36.752570][  T359]  ? move_addr_to_kernel (net/socket.c:258)
[   36.752701][  T359]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.752838][  T359]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.752978][  T359]  ___sys_sendmsg (net/socket.c:2752)
[   36.753107][  T359]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   36.753269][  T359]  ? copy_msghdr_from_user (net/socket.c:2603)
[   36.753414][  T359]  __sys_sendmsg (net/socket.c:2784)
[   36.753544][  T359]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   36.753674][  T359]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   36.753843][  T359]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   36.753975][  T359]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.754107][  T359]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.754236][  T359]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.754366][  T359]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.754496][  T359]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.754658][  T359] RIP: 0033:0x7f587cfaa08e
[   36.754796][  T359] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   36.755270][  T359] RSP: 002b:00007ffce8b57860 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.755469][  T359] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f587cfaa08e
[   36.755668][  T359] RDX: 0000000000000000 RSI: 00007ffce8b57910 RDI: 0000000000000005
[   36.755873][  T359] RBP: 00007ffce8b57870 R08: 0000000000000000 R09: 0000000000000000
[   36.756071][  T359] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d4
[   36.756268][  T359] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffce8b57fe0
| [   36.781388][  T360] ------------[ cut here ]------------
| [   36.781536][  T360] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/360
| [   36.781761][  T360] Modules linked in:
| [   36.782140][  T360] Tainted: [W]=WARN
[   36.782237][  T360] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.782398][  T360] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.782565][  T360] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.783032][  T360] RSP: 0018:ffa0000000f17150 EFLAGS: 00010286
[   36.783195][  T360] RAX: 00000000ffffffa6 RBX: ff11000009a9b1c0 RCX: 1ff40000001e2df0
[   36.783386][  T360] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a9b27c
[   36.783584][  T360] RBP: ff1100000cbcc000 R08: 1fe2200001353651 R09: ff1100000f722e58
[   36.783775][  T360] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   36.783977][  T360] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000db64040
[   36.784173][  T360] FS:  00007f610e182840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   36.784404][  T360] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.784566][  T360] CR2: 00000000004ebb20 CR3: 000000000f91d003 CR4: 0000000000771ef0
[   36.784759][  T360] PKRU: 55555554
[   36.784867][  T360] Call Trace:
[   36.784963][  T360]  <TASK>
[   36.785030][  T360]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   36.785160][  T360]  ? notifier_call_chain (kernel/notifier.c:85)
[   36.785291][  T360]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   36.785389][  T360]  netif_state_change (net/core/dev.c:1605)
[   36.785519][  T360]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   36.785679][  T360]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   36.785846][  T360]  linkwatch_sync_dev (net/core/link_watch.c:295)
[   36.785979][  T360]  rtnl_getlink (net/core/rtnetlink.c:4273)
[   36.786108][  T360]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.786239][  T360]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.786369][  T360]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   36.786498][  T360]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   36.786623][  T360]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.786750][  T360]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.786901][  T360]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.787029][  T360]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.787157][  T360]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   36.787287][  T360]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.787415][  T360]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.787545][  T360]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.787674][  T360]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   36.787802][  T360]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   36.787941][  T360]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.788067][  T360]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.788195][  T360]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.788324][  T360]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.788452][  T360]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.788579][  T360]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   36.788707][  T360]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.788840][  T360]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.788977][  T360]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   36.789103][  T360]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   36.789236][  T360]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.789363][  T360]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.789492][  T360]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.789620][  T360]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   36.789750][  T360]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   36.789886][  T360]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   36.790018][  T360]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   36.790149][  T360]  ? copy_msghdr_from_user (net/socket.c:2635)
[   36.790276][  T360]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   36.790436][  T360]  ? move_addr_to_kernel (net/socket.c:258)
[   36.790593][  T360]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.790722][  T360]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   36.790894][  T360]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.791022][  T360]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   36.791187][  T360]  ___sys_sendmsg (net/socket.c:2752)
[   36.791315][  T360]  ? copy_msghdr_from_user (net/socket.c:2603)
[   36.791443][  T360]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.791581][  T360]  ? move_addr_to_user (./include/linux/uaccess.h:236 net/socket.c:302)
[   36.791710][  T360]  ? do_getsockname (net/socket.c:2192)
[   36.791845][  T360]  __sys_sendmsg (net/socket.c:2784)
[   36.791979][  T360]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   36.792118][  T360]  ? __sys_getsockname (net/socket.c:2210)
[   36.792247][  T360]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.792377][  T360]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.792508][  T360]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.792637][  T360]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.792765][  T360]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.792940][  T360] RIP: 0033:0x7f610e3bc08e
[   36.793076][  T360] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   36.793533][  T360] RSP: 002b:00007ffdefeaa210 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.793727][  T360] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f610e3bc08e
[   36.793934][  T360] RDX: 0000000000000000 RSI: 00007ffdefeaa2c0 RDI: 0000000000000006
[   36.794128][  T360] RBP: 00007ffdefeaa220 R08: 0000000000000000 R09: 0000000000000000
[   36.794319][  T360] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d4
[   36.794514][  T360] R13: 00007ffdefeaa370 R14: 0000000000000000 R15: 0000000000000004
| [   36.799694][  T360] ------------[ cut here ]------------
| [   36.799863][  T360] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/360
| [   36.800095][  T360] Modules linked in:
| [   36.800466][  T360] Tainted: [W]=WARN
[   36.800565][  T360] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.800728][  T360] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   36.800909][  T360] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   36.801371][  T360] RSP: 0018:ffa0000000f17050 EFLAGS: 00010286
[   36.801534][  T360] RAX: 00000000ffffffa6 RBX: ff1100000e5b11c0 RCX: 1ff40000001e2dd0
[   36.801726][  T360] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e5b127c
[   36.801935][  T360] RBP: ff1100000cbcc000 R08: 1fe2200001cb6251 R09: ff1100000f722e80
[   36.802130][  T360] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   36.802322][  T360] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   36.802516][  T360] FS:  00007f610e182840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   36.802742][  T360] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.802916][  T360] CR2: 00007f610e4521a0 CR3: 000000000f91d003 CR4: 0000000000771ef0
[   36.803111][  T360] PKRU: 55555554
[   36.803208][  T360] Call Trace:
[   36.803304][  T360]  <TASK>
[   36.803371][  T360]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.803500][  T360]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   36.803628][  T360]  notifier_call_chain (kernel/notifier.c:85)
[   36.803762][  T360]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   36.803905][  T360]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.804035][  T360]  ? netif_set_group (net/core/dev.c:9947)
[   36.804167][  T360]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   36.804328][  T360]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   36.804462][  T360]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   36.804595][  T360]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   36.804726][  T360]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   36.804900][  T360]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.805030][  T360]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.805161][  T360]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   36.805290][  T360]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.805420][  T360]  ? __kernel_text_address (kernel/extable.c:79)
[   36.805553][  T360]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.805684][  T360]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.805815][  T360]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   36.805955][  T360]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.806083][  T360]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   36.806210][  T360]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.806339][  T360]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.806472][  T360]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   36.806603][  T360]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   36.806733][  T360]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   36.806872][  T360]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   36.807006][  T360]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   36.807139][  T360]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   36.807271][  T360]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.807402][  T360]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.807531][  T360]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.807660][  T360]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   36.807792][  T360]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.807936][  T360]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.808066][  T360]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.808196][  T360]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.808326][  T360]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   36.808457][  T360]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   36.808588][  T360]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   36.808717][  T360]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.808850][  T360]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.808983][  T360]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.809114][  T360]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   36.809244][  T360]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   36.809375][  T360]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   36.809505][  T360]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.809636][  T360]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.809769][  T360]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   36.809910][  T360]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   36.810042][  T360]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.810175][  T360]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.810307][  T360]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   36.810439][  T360]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   36.810570][  T360]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   36.810701][  T360]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   36.810859][  T360]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   36.810992][  T360]  ? copy_msghdr_from_user (net/socket.c:2635)
[   36.811122][  T360]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   36.811284][  T360]  ? move_addr_to_kernel (net/socket.c:258)
[   36.811414][  T360]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.811546][  T360]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   36.811677][  T360]  ___sys_sendmsg (net/socket.c:2752)
[   36.811811][  T360]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   36.811981][  T360]  ? copy_msghdr_from_user (net/socket.c:2603)
[   36.812128][  T360]  __sys_sendmsg (net/socket.c:2784)
[   36.812260][  T360]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   36.812390][  T360]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   36.812556][  T360]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   36.812688][  T360]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   36.812822][  T360]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   36.812964][  T360]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   36.813097][  T360]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   36.813228][  T360]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.813392][  T360] RIP: 0033:0x7f610e3bc08e
[   36.813532][  T360] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   36.814013][  T360] RSP: 002b:00007ffdefeabe90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.814213][  T360] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f610e3bc08e
[   36.814408][  T360] RDX: 0000000000000000 RSI: 00007ffdefeabf40 RDI: 0000000000000005
[   36.814603][  T360] RBP: 00007ffdefeabea0 R08: 0000000000000000 R09: 0000000000000000
[   36.814800][  T360] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d5
[   36.815007][  T360] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdefeac610
| [   39.826891][   T12] ------------[ cut here ]------------
| [   39.827062][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   39.827307][   T12] Modules linked in:
| [   39.827676][   T12] Tainted: [W]=WARN
[   39.827768][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.828007][   T12] Workqueue: netns cleanup_net
[   39.828140][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.828297][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.828731][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   39.828895][   T12] RAX: 00000000ffffffa6 RBX: ff11000009a55700 RCX: 1ff4000000018eed
[   39.829072][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a557bc
[   39.829254][   T12] RBP: ff110000176a9000 R08: 1fe220000134aaf9 R09: ff11000001aed1d0
[   39.829433][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   39.829614][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.829795][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   39.830018][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.830174][   T12] CR2: 000055fe8e962d5c CR3: 0000000004a94001 CR4: 0000000000771ef0
[   39.830357][   T12] PKRU: 55555554
[   39.830470][   T12] Call Trace:
[   39.830562][   T12]  <TASK>
[   39.830625][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.830783][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.830941][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.831066][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.831196][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.831313][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.831436][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.831557][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.831678][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.831797][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.831929][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.832048][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.832172][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.832298][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.832418][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.832541][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.832666][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.832783][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.832911][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.833033][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.833153][   T12]  kthread (kernel/kthread.c:436)
[   39.833241][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.833395][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.833513][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.833630][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.833774][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.833902][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.834021][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.836265][   T12] ------------[ cut here ]------------
| [   39.836388][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   39.836611][   T12] Modules linked in:
| [   39.837055][   T12] Tainted: [W]=WARN
[   39.837143][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.837287][   T12] Workqueue: netns cleanup_net
[   39.837407][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.837560][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.838058][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   39.838205][   T12] RAX: 00000000ffffffa6 RBX: ff11000009a55e00 RCX: 1ff4000000018eed
[   39.838381][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a55ebc
[   39.838555][   T12] RBP: ff11000007911000 R08: 1fe220000134abd9 R09: ff11000001aed1d0
[   39.838735][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   39.838925][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.839103][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   39.839309][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.839457][   T12] CR2: 000055fe8e962d5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   39.839631][   T12] PKRU: 55555554
[   39.839715][   T12] Call Trace:
[   39.839802][   T12]  <TASK>
[   39.839876][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.840025][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.840169][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.840285][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.840403][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.840520][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.840639][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.840759][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.840963][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.841081][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.841199][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.841316][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.841500][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.841617][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.841735][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.841859][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.842054][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.842169][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.842289][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.842408][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.842596][   T12]  kthread (kernel/kthread.c:436)
[   39.842684][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.842827][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.842955][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.843143][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.843285][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.843399][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.843518][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.846069][   T12] ------------[ cut here ]------------
| [   39.846187][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   39.846412][   T12] Modules linked in:
| [   39.847081][   T12] Tainted: [W]=WARN
[   39.847169][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.847315][   T12] Workqueue: netns cleanup_net
[   39.847436][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.847584][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.848073][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   39.848222][   T12] RAX: 00000000ffffffa6 RBX: ff1100000e5b2900 RCX: 1ff4000000018eed
[   39.848398][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e5b29bc
[   39.848575][   T12] RBP: ff11000007c29000 R08: 1fe2200001cb6539 R09: ff11000001aed1d0
[   39.848746][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   39.848972][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.849152][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   39.849398][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.849562][   T12] CR2: 000055fe8e962d5c CR3: 000000003174d006 CR4: 0000000000771ef0
[   39.849739][   T12] PKRU: 55555554
[   39.849826][   T12] Call Trace:
[   39.849963][   T12]  <TASK>
[   39.850024][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.850171][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.850320][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.850441][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.850561][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.850677][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.850809][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.850976][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.851096][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.851211][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.851328][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.851443][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.851557][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.851678][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.851793][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.851966][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.852086][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.852201][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.852322][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.852443][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.852560][   T12]  kthread (kernel/kthread.c:436)
[   39.852646][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.852793][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.852964][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.853081][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.853224][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.853344][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.853464][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.855590][   T12] ------------[ cut here ]------------
| [   39.855727][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   39.855982][   T12] Modules linked in:
| [   39.856342][   T12] Tainted: [W]=WARN
[   39.856430][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.856575][   T12] Workqueue: netns cleanup_net
[   39.856696][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.856891][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.857337][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   39.857491][   T12] RAX: 00000000ffffffa6 RBX: ff1100000f98aac0 RCX: 1ff4000000018eed
[   39.857673][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f98ab7c
[   39.857870][   T12] RBP: ff11000008b99000 R08: 1fe2200001f31571 R09: ff11000001aed1d0
[   39.858048][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   39.858226][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.858411][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   39.858621][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.858771][   T12] CR2: 000055fe8e962d5c CR3: 0000000009524003 CR4: 0000000000771ef0
[   39.858968][   T12] PKRU: 55555554
[   39.859058][   T12] Call Trace:
[   39.859147][   T12]  <TASK>
[   39.859213][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.859368][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.859522][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.859643][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.859764][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.859896][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.860017][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.860139][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.860261][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.860381][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.860508][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.860629][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.860749][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.860884][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.861002][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.861124][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.861247][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.861369][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.861499][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.861635][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.861754][   T12]  kthread (kernel/kthread.c:436)
[   39.861849][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.862005][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.862125][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.862246][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.862399][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.862523][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.862644][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.864757][   T12] ------------[ cut here ]------------
| [   39.864910][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   39.865221][   T12] Modules linked in:
| [   39.865601][   T12] Tainted: [W]=WARN
[   39.865691][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.865859][   T12] Workqueue: netns cleanup_net
[   39.865991][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.866147][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.866581][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   39.866732][   T12] RAX: 00000000ffffffa6 RBX: ff1100000f98a740 RCX: 1ff4000000018eed
[   39.866921][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f98a7fc
[   39.867105][   T12] RBP: ff110000176cc000 R08: 1fe2200001f31501 R09: ff11000001aed1d0
[   39.867281][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   39.867460][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.867634][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   39.867843][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.867997][   T12] CR2: 000055fe8e962d5c CR3: 0000000009524003 CR4: 0000000000771ef0
[   39.868173][   T12] PKRU: 55555554
[   39.868258][   T12] Call Trace:
[   39.868344][   T12]  <TASK>
[   39.868404][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.868554][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.868698][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.868813][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.868940][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.869057][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.869172][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.869293][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.869410][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.869525][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.869644][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.869760][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.869886][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.870002][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.870117][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.870236][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.870356][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.870471][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.870591][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.870709][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.870825][   T12]  kthread (kernel/kthread.c:436)
[   39.870924][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.871069][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.871184][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.871299][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.871443][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.871558][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.871673][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.885003][   T12] ------------[ cut here ]------------
| [   39.885142][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   39.885383][   T12] Modules linked in:
| [   39.885754][   T12] Tainted: [W]=WARN
[   39.885855][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.886017][   T12] Workqueue: netns cleanup_net
[   39.886153][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.886313][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.886750][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   39.886911][   T12] RAX: 00000000ffffffa6 RBX: ff1100000f98a580 RCX: 1ff4000000018eaf
[   39.887094][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f98a63c
[   39.887278][   T12] RBP: ff1100000cbcc000 R08: 1fe2200001f314c9 R09: ff11000001aed1d0
[   39.887463][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   39.887643][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000cbc9000
[   39.887828][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   39.888055][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.888209][   T12] CR2: 000055fe8e962d5c CR3: 0000000009524003 CR4: 0000000000771ef0
[   39.888389][   T12] PKRU: 55555554
[   39.888480][   T12] Call Trace:
[   39.888573][   T12]  <TASK>
[   39.888637][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   39.888770][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   39.888875][   T12]  netif_close_many (net/core/dev.c:1804)
[   39.889001][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.889124][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.889245][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.889368][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   39.889495][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   39.889654][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   39.889809][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.889941][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.890097][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.890220][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.890343][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   39.890497][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   39.890622][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   39.890759][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   39.890895][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.891020][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   39.891144][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   39.891269][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.891390][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.891518][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.891640][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.891763][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.891908][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.892029][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.892152][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.892278][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.892399][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.892527][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.892654][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.892775][   T12]  kthread (kernel/kthread.c:436)
[   39.892927][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.893090][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.893213][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.893335][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.893486][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.893610][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.893735][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.896482][   T12] ------------[ cut here ]------------
| [   39.896608][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   39.896856][   T12] Modules linked in:
| [   39.897234][   T12] Tainted: [W]=WARN
[   39.897330][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.897484][   T12] Workqueue: netns cleanup_net
[   39.897615][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.897776][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.898225][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   39.898380][   T12] RAX: 00000000ffffffa6 RBX: ff11000005099a80 RCX: 1ff4000000018eaf
[   39.898562][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005099b3c
[   39.898747][   T12] RBP: ff1100000cbc9000 R08: 1fe2200000a13369 R09: ff11000001aed1d0
[   39.898950][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   39.899137][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   39.899323][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   39.899537][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.899690][   T12] CR2: 000055fe8e962d5c CR3: 0000000009524003 CR4: 0000000000771ef0
[   39.899886][   T12] PKRU: 55555554
[   39.899980][   T12] Call Trace:
[   39.900071][   T12]  <TASK>
[   39.900134][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   39.900257][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   39.900382][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   39.900475][   T12]  netif_close_many (net/core/dev.c:1804)
[   39.900600][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.900727][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.900910][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.901036][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   39.901260][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   39.901430][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   39.901585][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.901708][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.901897][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.902026][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.902147][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   39.902305][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   39.902429][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   39.902552][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   39.902676][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.902799][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   39.902936][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   39.903061][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.903182][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.903310][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.903443][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.903569][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.903692][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.903813][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.903944][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.904070][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.904194][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.904320][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.904446][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.904568][   T12]  kthread (kernel/kthread.c:436)
[   39.904660][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.904811][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.904943][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.905070][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.905221][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.905346][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.905468][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.909005][   T12] ------------[ cut here ]------------
| [   39.909140][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   39.909455][   T12] Modules linked in:
| [   39.909925][   T12] Tainted: [W]=WARN
[   39.910017][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.910163][   T12] Workqueue: netns cleanup_net
[   39.910286][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.910440][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.910945][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   39.911144][   T12] RAX: 00000000ffffffa6 RBX: ff110000139ea040 RCX: 1ff4000000018ed5
[   39.911319][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000139ea0fc
[   39.911494][   T12] RBP: ff1100000cbcc000 R08: 1fe220000273d421 R09: ff11000001aed1d0
[   39.911671][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   39.911907][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.912087][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   39.912294][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.912445][   T12] CR2: 000055fe8e962d5c CR3: 0000000009524003 CR4: 0000000000771ef0
[   39.912622][   T12] PKRU: 55555554
[   39.912712][   T12] Call Trace:
[   39.912800][   T12]  <TASK>
[   39.912917][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.913073][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.913220][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.913342][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.913465][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   39.913616][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   39.913739][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   39.913912][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.914032][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   39.914151][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   39.914271][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.914391][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.914514][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.914637][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.914755][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.914943][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.915061][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.915181][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.915305][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.915422][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.915544][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.915671][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.915928][   T12]  kthread (kernel/kthread.c:436)
[   39.916020][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.916168][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.916290][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.916408][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.916556][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.916748][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.916922][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.919594][   T12] ------------[ cut here ]------------
| [   39.919721][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   39.919965][   T12] Modules linked in:
| [   39.920330][   T12] Tainted: [W]=WARN
[   39.920419][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.920567][   T12] Workqueue: netns cleanup_net
[   39.920693][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.920856][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.921286][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   39.921446][   T12] RAX: 00000000ffffffa6 RBX: ff110000139eaac0 RCX: 1ff4000000018ed5
[   39.921623][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000139eab7c
[   39.921805][   T12] RBP: ff1100000cbc9000 R08: 1fe220000273d571 R09: ff11000001aed1d0
[   39.921998][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   39.922179][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.922358][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   39.922567][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.922722][   T12] CR2: 00007fb37afc5318 CR3: 0000000012b9f003 CR4: 0000000000771ef0
[   39.922911][   T12] PKRU: 55555554
[   39.923000][   T12] Call Trace:
[   39.923090][   T12]  <TASK>
[   39.923152][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.923306][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.923461][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.923583][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.923703][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   39.923943][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   39.924065][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   39.924185][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.924309][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   39.924436][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   39.924559][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.924679][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.924803][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.924935][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.925054][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.925175][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.925294][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.925415][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.925544][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.925666][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.925790][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.925983][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.926103][   T12]  kthread (kernel/kthread.c:436)
[   39.926192][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.926339][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.926463][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.926582][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.926729][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.926853][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.926977][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.929409][   T12] ------------[ cut here ]------------
| [   39.929533][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   39.929770][   T12] Modules linked in:
| [   39.930143][   T12] Tainted: [W]=WARN
[   39.930233][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.930383][   T12] Workqueue: netns cleanup_net
[   39.930507][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.930671][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.931121][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   39.931271][   T12] RAX: 00000000ffffffa6 RBX: ff110000139eb540 RCX: 1ff4000000018ed5
[   39.931448][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000139eb5fc
[   39.931625][   T12] RBP: ff1100000928c000 R08: 1fe220000273d6c1 R09: ff11000001aed1d0
[   39.931803][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   39.931988][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.932169][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   39.932377][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.932528][   T12] CR2: 00007fb37afc5318 CR3: 000000003174d006 CR4: 0000000000771ef0
[   39.932707][   T12] PKRU: 55555554
[   39.932797][   T12] Call Trace:
[   39.932972][   T12]  <TASK>
[   39.933034][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.933186][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.933333][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.933455][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.933578][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   39.933729][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   39.933855][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   39.933979][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   39.934099][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   39.934220][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   39.934342][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.934463][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.934583][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.934707][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.934825][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.934955][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.935079][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.935200][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.935400][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.935521][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.935644][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.935769][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.935899][   T12]  kthread (kernel/kthread.c:436)
[   39.935988][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.936210][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.936331][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.936452][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.936676][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.936795][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.936924][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.968234][   T12] ------------[ cut here ]------------
| [   39.968363][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   39.968601][   T12] Modules linked in:
| [   39.968966][   T12] Tainted: [W]=WARN
[   39.969055][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.969203][   T12] Workqueue: netns cleanup_net
[   39.969327][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.969481][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.969918][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   39.970065][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b2e7a80 RCX: 1ff4000000018eed
[   39.970240][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b2e7b3c
[   39.970415][   T12] RBP: ff11000008c8c000 R08: 1fe220000165cf69 R09: ff11000001aed1d0
[   39.970589][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   39.970764][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.970956][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   39.971164][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.971308][   T12] CR2: 00007fb37afc5318 CR3: 000000003174d006 CR4: 0000000000771ef0
[   39.971484][   T12] PKRU: 55555554
[   39.971571][   T12] Call Trace:
[   39.971660][   T12]  <TASK>
[   39.971722][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.971880][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.972026][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.972144][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.972263][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.972379][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.972498][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.972615][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.972734][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.972857][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.972983][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.973101][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.973223][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.973343][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.973465][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.973589][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.973710][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.973825][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.973963][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.974085][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.974201][   T12]  kthread (kernel/kthread.c:436)
[   39.974289][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.974440][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.974557][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.974679][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.974837][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.974957][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.975077][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.977213][   T12] ------------[ cut here ]------------
| [   39.977327][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   39.977555][   T12] Modules linked in:
| [   39.977914][   T12] Tainted: [W]=WARN
[   39.978002][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.978146][   T12] Workqueue: netns cleanup_net
[   39.978266][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.978418][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.978848][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   39.978996][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b2e7380 RCX: 1ff4000000018eed
[   39.979172][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b2e743c
[   39.979346][   T12] RBP: ff11000005f5c000 R08: 1fe220000165ce89 R09: ff11000001aed1d0
[   39.979519][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   39.979689][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.979876][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   39.980079][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.980222][   T12] CR2: 00007fb37afc5318 CR3: 000000003174d006 CR4: 0000000000771ef0
[   39.980394][   T12] PKRU: 55555554
[   39.980482][   T12] Call Trace:
[   39.980568][   T12]  <TASK>
[   39.980628][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.980777][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.980929][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.981045][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.981161][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.981276][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.981392][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.981509][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.981625][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.981741][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.981870][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.981993][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.982108][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.982226][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.982340][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.982460][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.982581][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.982697][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.982815][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.982944][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.983060][   T12]  kthread (kernel/kthread.c:436)
[   39.983147][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.983291][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.983409][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.983525][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.983669][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.983785][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.983908][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.986005][   T12] ------------[ cut here ]------------
| [   39.986118][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   39.986341][   T12] Modules linked in:
| [   39.986691][   T12] Tainted: [W]=WARN
[   39.986778][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.986929][   T12] Workqueue: netns cleanup_net
[   39.987049][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.987198][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.987610][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   39.987759][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b2e6c80 RCX: 1ff4000000018eed
[   39.987941][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b2e6d3c
[   39.988112][   T12] RBP: ff11000009274000 R08: 1fe220000165cda9 R09: ff11000001aed1d0
[   39.988286][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   39.988461][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.988635][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   39.988845][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.988996][   T12] CR2: 00007fb37afc5318 CR3: 000000003174d006 CR4: 0000000000771ef0
[   39.989170][   T12] PKRU: 55555554
[   39.989256][   T12] Call Trace:
[   39.989342][   T12]  <TASK>
[   39.989402][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.989549][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.989691][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.989809][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.989934][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.990049][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.990165][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.990283][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.990401][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.990517][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.990635][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.990754][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.990878][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.990996][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.991112][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.991229][   T12]  process_one_work (kernel/workqueue.c:3314)
[   39.991348][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   39.991469][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   39.991590][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   39.991712][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   39.991839][   T12]  kthread (kernel/kthread.c:436)
[   39.991931][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.992075][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.992191][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   39.992312][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   39.992460][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   39.992577][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   39.992693][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   39.994618][   T12] ------------[ cut here ]------------
| [   39.994733][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   39.994967][   T12] Modules linked in:
| [   39.995318][   T12] Tainted: [W]=WARN
[   39.995405][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.995552][   T12] Workqueue: netns cleanup_net
[   39.995672][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   39.995822][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   39.996254][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   39.996399][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b2e6900 RCX: 1ff4000000018eed
[   39.996573][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b2e69bc
[   39.996751][   T12] RBP: ff110000134f9000 R08: 1fe220000165cd39 R09: ff11000001aed1d0
[   39.996932][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   39.997107][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   39.997281][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   39.997482][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.997626][   T12] CR2: 00007fb37afc5318 CR3: 000000003174d006 CR4: 0000000000771ef0
[   39.997802][   T12] PKRU: 55555554
[   39.997899][   T12] Call Trace:
[   39.997987][   T12]  <TASK>
[   39.998047][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   39.998197][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   39.998343][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   39.998461][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   39.998579][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   39.998699][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   39.998821][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   39.998949][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   39.999067][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   39.999183][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   39.999302][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   39.999419][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   39.999533][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   39.999650][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   39.999765][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   39.999893][   T12]  process_one_work (kernel/workqueue.c:3314)
[   40.000012][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   40.000127][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.000248][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   40.000368][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.000487][   T12]  kthread (kernel/kthread.c:436)
[   40.000577][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.000720][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.000841][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   40.000961][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   40.001105][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   40.001222][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.001411][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   40.003773][   T12] ------------[ cut here ]------------
| [   40.003902][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   40.004199][   T12] Modules linked in:
| [   40.004548][   T12] Tainted: [W]=WARN
[   40.004707][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.004858][   T12] Workqueue: netns cleanup_net
[   40.004983][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.005135][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.005619][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   40.005842][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b2e6580 RCX: 1ff4000000018eed
[   40.006018][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b2e663c
[   40.006189][   T12] RBP: ff11000008d39000 R08: 1fe220000165ccc9 R09: ff11000001aed1d0
[   40.006431][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   40.006609][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   40.006783][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   40.007066][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.007210][   T12] CR2: 00007fb37afc5318 CR3: 000000003174d006 CR4: 0000000000771ef0
[   40.007457][   T12] PKRU: 55555554
[   40.007542][   T12] Call Trace:
[   40.007628][   T12]  <TASK>
[   40.007689][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   40.007842][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   40.008058][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   40.008172][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   40.008289][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   40.008404][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   40.008593][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   40.008716][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   40.008839][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   40.008961][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.009149][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   40.009265][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   40.009380][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   40.009500][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.009683][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.009801][   T12]  process_one_work (kernel/workqueue.c:3314)
[   40.009934][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   40.010049][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.010241][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   40.010361][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.010481][   T12]  kthread (kernel/kthread.c:436)
[   40.010568][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.010781][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.010910][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   40.011027][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   40.011247][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   40.011369][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.011488][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   40.024977][   T12] ------------[ cut here ]------------
| [   40.025104][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   40.025341][   T12] Modules linked in:
| [   40.025701][   T12] Tainted: [W]=WARN
[   40.025791][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.025996][   T12] Workqueue: netns cleanup_net
[   40.026121][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.026276][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.026706][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   40.026879][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c66b700 RCX: 1ff4000000018ed5
[   40.027061][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c66b7bc
[   40.027238][   T12] RBP: ff1100000fdd4000 R08: 1fe22000018cd6f9 R09: ff11000001aed1d0
[   40.027413][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   40.027588][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   40.027772][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   40.027994][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.028143][   T12] CR2: 00007fb37afc5318 CR3: 000000003174d006 CR4: 0000000000771ef0
[   40.028322][   T12] PKRU: 55555554
[   40.028411][   T12] Call Trace:
[   40.028499][   T12]  <TASK>
[   40.028562][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   40.028715][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   40.028872][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   40.028992][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   40.029113][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   40.029236][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   40.029354][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   40.029475][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   40.029593][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   40.029710][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.029837][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   40.029961][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   40.030079][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   40.030202][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.030319][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.030442][   T12]  process_one_work (kernel/workqueue.c:3314)
[   40.030564][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   40.030682][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.030805][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   40.030935][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.031052][   T12]  kthread (kernel/kthread.c:436)
[   40.031146][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.031295][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.031418][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   40.031535][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   40.031682][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   40.031801][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.031928][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   40.051041][  T374] ------------[ cut here ]------------
| [   40.051250][  T374] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/374
| [   40.051528][  T374] Modules linked in:
| [   40.052022][  T374] Tainted: [W]=WARN
[   40.052167][  T374] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.052379][  T374] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.052604][  T374] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.053136][  T374] RSP: 0018:ffa0000000eb7a80 EFLAGS: 00010286
[   40.053347][  T374] RAX: 00000000ffffffa6 RBX: ff1100000c66a3c0 RCX: 1ff40000001d6f16
[   40.053588][  T374] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c66a47c
[   40.053845][  T374] RBP: ff1100000a50c000 R08: 1fe22000018cd491 R09: ff1100000f80d180
[   40.054093][  T374] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   40.054333][  T374] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a50c000
[   40.054577][  T374] FS:  00007f04d4b36840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   40.054873][  T374] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.055083][  T374] CR2: 00007f04d4eaf493 CR3: 0000000012b9d006 CR4: 0000000000771ef0
[   40.055325][  T374] PKRU: 55555554
[   40.055470][  T374] Call Trace:
[   40.055614][  T374]  <TASK>
[   40.055729][  T374]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.055922][  T374]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.056104][  T374]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.056252][  T374]  register_netdevice (net/core/dev.c:11488)
[   40.056432][  T374]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.056645][  T374]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   40.056825][  T374]  register_netdev (net/core/dev.c:11552)
[   40.057026][  T374]  loopback_net_init (drivers/net/loopback.c:218)
[   40.057208][  T374]  ops_init (net/core/net_namespace.c:137)
[   40.057358][  T374]  setup_net (net/core/net_namespace.c:446)
[   40.057505][  T374]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.057679][  T374]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.057877][  T374]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.058057][  T374]  copy_net_ns (net/core/net_namespace.c:579)
[   40.058238][  T374]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.058418][  T374]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.058600][  T374]  ksys_unshare (kernel/fork.c:3243)
[   40.058779][  T374]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.058982][  T374]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.059161][  T374]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.059343][  T374]  ? __ia32_sys_open (fs/open.c:1374)
[   40.059526][  T374]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.059703][  T374]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.059903][  T374]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.060084][  T374]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.060262][  T374]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.060440][  T374]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.060649][  T374] RIP: 0033:0x7f04d4df8bcb
[   40.060847][  T374] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.061365][  T374] RSP: 002b:00007ffebbdd7ce8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   40.061609][  T374] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f04d4df8bcb
[   40.061871][  T374] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.062114][  T374] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.062358][  T374] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffebbdd9f10
[   40.062600][  T374] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffebbdda875
| [   40.073318][  T374] ------------[ cut here ]------------
| [   40.073501][  T374] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/374
| [   40.073776][  T374] Modules linked in:
| [   40.074333][  T374] Tainted: [W]=WARN
[   40.074479][  T374] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.074687][  T374] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.074922][  T374] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.075428][  T374] RSP: 0018:ffa0000000eb7918 EFLAGS: 00010286
[   40.075642][  T374] RAX: 00000000ffffffa6 RBX: ff1100000f911380 RCX: 1ff40000001d6ee9
[   40.075904][  T374] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f91143c
[   40.076153][  T374] RBP: ff110000050d1000 R08: 1fe2200001f22289 R09: ff1100000f80d180
[   40.076392][  T374] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   40.076639][  T374] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000050d1000
[   40.076905][  T374] FS:  00007f04d4b36840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   40.077181][  T374] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.077391][  T374] CR2: 00007f04d4eaf493 CR3: 0000000012b9d006 CR4: 0000000000771ef0
[   40.077634][  T374] PKRU: 55555554
[   40.077782][  T374] Call Trace:
[   40.077949][  T374]  <TASK>
[   40.078066][  T374]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.078250][  T374]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.078429][  T374]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.078576][  T374]  register_netdevice (net/core/dev.c:11488)
[   40.078756][  T374]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.078985][  T374]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   40.079170][  T374]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   40.079349][  T374]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   40.079527][  T374]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   40.079707][  T374]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   40.079908][  T374]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   40.080089][  T374]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   40.080271][  T374]  ops_init (net/core/net_namespace.c:137)
[   40.080423][  T374]  setup_net (net/core/net_namespace.c:446)
[   40.080570][  T374]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.080748][  T374]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.080952][  T374]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.081133][  T374]  copy_net_ns (net/core/net_namespace.c:579)
[   40.081315][  T374]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.081497][  T374]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.081679][  T374]  ksys_unshare (kernel/fork.c:3243)
[   40.081879][  T374]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.082056][  T374]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.082236][  T374]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.082416][  T374]  ? __ia32_sys_open (fs/open.c:1374)
[   40.082597][  T374]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.082773][  T374]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.082975][  T374]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.083160][  T374]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.083338][  T374]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.083517][  T374]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.083725][  T374] RIP: 0033:0x7f04d4df8bcb
[   40.083923][  T374] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.084435][  T374] RSP: 002b:00007ffebbdd7ce8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   40.084678][  T374] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f04d4df8bcb
[   40.084941][  T374] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.085182][  T374] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.085425][  T374] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffebbdd9f10
[   40.085664][  T374] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffebbdda875
| [   40.090039][  T374] ------------[ cut here ]------------
| [   40.090217][  T374] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/374
| [   40.090493][  T374] Modules linked in:
| [   40.090977][  T374] Tainted: [W]=WARN
[   40.091126][  T374] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.091336][  T374] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.091557][  T374] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.092089][  T374] RSP: 0018:ffa0000000eb78f8 EFLAGS: 00010286
[   40.092302][  T374] RAX: 00000000ffffffa6 RBX: ff1100000cf9e040 RCX: 1ff40000001d6ee5
[   40.092546][  T374] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf9e0fc
[   40.092786][  T374] RBP: ff11000009381000 R08: 1fe22000019f3c21 R09: ff1100000f80d180
[   40.093048][  T374] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   40.093295][  T374] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009381000
[   40.093541][  T374] FS:  00007f04d4b36840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   40.093817][  T374] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.094050][  T374] CR2: 00007f04d4eaf493 CR3: 0000000012b9d006 CR4: 0000000000771ef0
[   40.094302][  T374] PKRU: 55555554
[   40.094449][  T374] Call Trace:
[   40.094594][  T374]  <TASK>
[   40.094710][  T374]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.094910][  T374]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.095092][  T374]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.095242][  T374]  register_netdevice (net/core/dev.c:11488)
[   40.095421][  T374]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.095638][  T374]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   40.095821][  T374]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   40.096023][  T374]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   40.096203][  T374]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   40.096384][  T374]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   40.096564][  T374]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   40.096745][  T374]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   40.096946][  T374]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   40.097133][  T374]  vti_init_net (net/ipv4/ip_vti.c:517)
[   40.097313][  T374]  ops_init (net/core/net_namespace.c:137)
[   40.097462][  T374]  setup_net (net/core/net_namespace.c:446)
[   40.097609][  T374]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.097786][  T374]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.097986][  T374]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.098167][  T374]  copy_net_ns (net/core/net_namespace.c:579)
[   40.098352][  T374]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.098533][  T374]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.098712][  T374]  ksys_unshare (kernel/fork.c:3243)
[   40.098913][  T374]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.099093][  T374]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.099272][  T374]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.099453][  T374]  ? __ia32_sys_open (fs/open.c:1374)
[   40.099639][  T374]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.099819][  T374]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.100021][  T374]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.100202][  T374]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.100381][  T374]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.100563][  T374]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.100774][  T374] RIP: 0033:0x7f04d4df8bcb
[   40.100982][  T374] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.101499][  T374] RSP: 002b:00007ffebbdd7ce8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   40.101746][  T374] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f04d4df8bcb
[   40.102011][  T374] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.102257][  T374] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.102500][  T374] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffebbdd9f10
[   40.102741][  T374] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffebbdda875
| [   40.108233][  T374] ------------[ cut here ]------------
| [   40.108411][  T374] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/374
| [   40.108686][  T374] Modules linked in:
| [   40.109163][  T374] Tainted: [W]=WARN
[   40.109307][  T374] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.109527][  T374] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.109744][  T374] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.110338][  T374] RSP: 0018:ffa0000000eb7a78 EFLAGS: 00010286
[   40.110603][  T374] RAX: 00000000ffffffa6 RBX: ff1100000cf9f380 RCX: 1ff40000001d6f15
[   40.110855][  T374] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf9f43c
[   40.111107][  T374] RBP: ff11000008631000 R08: 1fe22000019f3e89 R09: ff1100000f80d180
[   40.111348][  T374] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   40.111601][  T374] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008631000
[   40.111857][  T374] FS:  00007f04d4b36840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   40.112141][  T374] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.112355][  T374] CR2: 00007f04d4eaf493 CR3: 0000000012b9d006 CR4: 0000000000771ef0
[   40.112597][  T374] PKRU: 55555554
[   40.112740][  T374] Call Trace:
[   40.112907][  T374]  <TASK>
[   40.113024][  T374]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.113205][  T374]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.113384][  T374]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.113534][  T374]  register_netdevice (net/core/dev.c:11488)
[   40.113713][  T374]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.113973][  T374]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.114156][  T374]  register_netdev (net/core/dev.c:11552)
[   40.114335][  T374]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   40.114516][  T374]  ops_init (net/core/net_namespace.c:137)
[   40.114663][  T374]  setup_net (net/core/net_namespace.c:446)
[   40.114814][  T374]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.115014][  T374]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.115194][  T374]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.115374][  T374]  copy_net_ns (net/core/net_namespace.c:579)
[   40.115554][  T374]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.115734][  T374]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.115937][  T374]  ksys_unshare (kernel/fork.c:3243)
[   40.116120][  T374]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.116297][  T374]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.116475][  T374]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.116653][  T374]  ? __ia32_sys_open (fs/open.c:1374)
[   40.116846][  T374]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.117030][  T374]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.117206][  T374]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.117387][  T374]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.117566][  T374]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.117745][  T374]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.117975][  T374] RIP: 0033:0x7f04d4df8bcb
[   40.118161][  T374] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.118671][  T374] RSP: 002b:00007ffebbdd7ce8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   40.118935][  T374] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f04d4df8bcb
[   40.119175][  T374] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.119416][  T374] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.119660][  T374] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffebbdd9f10
[   40.119919][  T374] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffebbdda875
| [   40.125557][  T374] ------------[ cut here ]------------
| [   40.125704][  T374] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/374
| [   40.125946][  T374] Modules linked in:
| [   40.126309][  T374] Tainted: [W]=WARN
[   40.126412][  T374] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.126575][  T374] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.126745][  T374] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.127215][  T374] RSP: 0018:ffa0000000eb7a68 EFLAGS: 00010286
[   40.127384][  T374] RAX: 00000000ffffffa6 RBX: ff110000060443c0 RCX: 1ff40000001d6f13
[   40.127578][  T374] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000604447c
[   40.127772][  T374] RBP: ff1100000a4f4000 R08: 1fe2200000c08891 R09: ff1100000f80d180
[   40.127978][  T374] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   40.128190][  T374] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a4f4000
[   40.128385][  T374] FS:  00007f04d4b36840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   40.128613][  T374] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.128777][  T374] CR2: 000056489222fd5c CR3: 0000000012b9d005 CR4: 0000000000771ef0
[   40.128987][  T374] PKRU: 55555554
[   40.129085][  T374] Call Trace:
[   40.129182][  T374]  <TASK>
[   40.129250][  T374]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.129381][  T374]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.129511][  T374]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.129611][  T374]  register_netdevice (net/core/dev.c:11488)
[   40.129743][  T374]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.129918][  T374]  register_netdev (net/core/dev.c:11552)
[   40.130049][  T374]  sit_init_net (net/ipv6/sit.c:1860)
[   40.130180][  T374]  ops_init (net/core/net_namespace.c:137)
[   40.130279][  T374]  setup_net (net/core/net_namespace.c:446)
[   40.130378][  T374]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.130508][  T374]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.130638][  T374]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.130770][  T374]  copy_net_ns (net/core/net_namespace.c:579)
[   40.130914][  T374]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.131048][  T374]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.131178][  T374]  ksys_unshare (kernel/fork.c:3243)
[   40.131307][  T374]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.131437][  T374]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.131568][  T374]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.131699][  T374]  ? __ia32_sys_open (fs/open.c:1374)
[   40.131840][  T374]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.131974][  T374]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.132102][  T374]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.132231][  T374]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.132361][  T374]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.132491][  T374]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.132653][  T374] RIP: 0033:0x7f04d4df8bcb
[   40.132789][  T374] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.133264][  T374] RSP: 002b:00007ffebbdd7ce8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   40.133462][  T374] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f04d4df8bcb
[   40.133655][  T374] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.133856][  T374] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.134055][  T374] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffebbdd9f10
[   40.134249][  T374] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffebbdda875
| [   40.143064][  T374] ------------[ cut here ]------------
| [   40.143205][  T374] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/374
| [   40.143431][  T374] Modules linked in:
| [   40.143800][  T374] Tainted: [W]=WARN
[   40.143910][  T374] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.144076][  T374] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.144247][  T374] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.144716][  T374] RSP: 0018:ffa0000000eb7a78 EFLAGS: 00010286
[   40.144894][  T374] RAX: 00000000ffffffa6 RBX: ff11000009a57380 RCX: 1ff40000001d6f15
[   40.145088][  T374] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a5743c
[   40.145287][  T374] RBP: ff11000009661000 R08: 1fe220000134ae89 R09: ff1100000f80d180
[   40.145484][  T374] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   40.145678][  T374] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009661000
[   40.145882][  T374] FS:  00007f04d4b36840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   40.146111][  T374] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.146280][  T374] CR2: 000056489222fd5c CR3: 0000000012b9d005 CR4: 0000000000771ef0
[   40.146477][  T374] PKRU: 55555554
[   40.146575][  T374] Call Trace:
[   40.146673][  T374]  <TASK>
[   40.146740][  T374]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.146880][  T374]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.147012][  T374]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.147115][  T374]  register_netdevice (net/core/dev.c:11488)
[   40.147247][  T374]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.147412][  T374]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.147548][  T374]  register_netdev (net/core/dev.c:11552)
[   40.147680][  T374]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   40.147814][  T374]  ops_init (net/core/net_namespace.c:137)
[   40.147926][  T374]  setup_net (net/core/net_namespace.c:446)
[   40.148026][  T374]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.148156][  T374]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.148287][  T374]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.148420][  T374]  copy_net_ns (net/core/net_namespace.c:579)
[   40.148555][  T374]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.148691][  T374]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.148824][  T374]  ksys_unshare (kernel/fork.c:3243)
[   40.148970][  T374]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.149102][  T374]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.149234][  T374]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.149367][  T374]  ? __ia32_sys_open (fs/open.c:1374)
[   40.149502][  T374]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.149634][  T374]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.149764][  T374]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.149904][  T374]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.150039][  T374]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.150170][  T374]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.150334][  T374] RIP: 0033:0x7f04d4df8bcb
[   40.150470][  T374] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.150952][  T374] RSP: 002b:00007ffebbdd7ce8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   40.151149][  T374] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f04d4df8bcb
[   40.151345][  T374] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.151540][  T374] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.151736][  T374] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffebbdd9f10
[   40.151940][  T374] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffebbdda875
| [   40.181869][  T375] ------------[ cut here ]------------
| [   40.182048][  T375] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/375
| [   40.182321][  T375] Modules linked in:
| [   40.182781][  T375] Tainted: [W]=WARN
[   40.182949][  T375] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.183163][  T375] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.183380][  T375] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.183912][  T375] RSP: 0018:ffa0000000ed7a80 EFLAGS: 00010286
[   40.184126][  T375] RAX: 00000000ffffffa6 RBX: ff1100000c14ec80 RCX: 1ff40000001daf16
[   40.184369][  T375] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c14ed3c
[   40.184615][  T375] RBP: ff11000005301000 R08: 1fe2200001829da9 R09: ff1100000f955180
[   40.184877][  T375] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   40.185121][  T375] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005301000
[   40.185365][  T375] FS:  00007fcfae6f0840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   40.185644][  T375] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.185874][  T375] CR2: 00007fcfae8f7430 CR3: 0000000017699003 CR4: 0000000000771ef0
[   40.186117][  T375] PKRU: 55555554
[   40.186263][  T375] Call Trace:
[   40.186409][  T375]  <TASK>
[   40.186525][  T375]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.186703][  T375]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.186906][  T375]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.187057][  T375]  register_netdevice (net/core/dev.c:11488)
[   40.187239][  T375]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.187450][  T375]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   40.187630][  T375]  register_netdev (net/core/dev.c:11552)
[   40.187809][  T375]  loopback_net_init (drivers/net/loopback.c:218)
[   40.188014][  T375]  ops_init (net/core/net_namespace.c:137)
[   40.188165][  T375]  setup_net (net/core/net_namespace.c:446)
[   40.188314][  T375]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.188494][  T375]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.188676][  T375]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.188877][  T375]  copy_net_ns (net/core/net_namespace.c:579)
[   40.189057][  T375]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.189239][  T375]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.189421][  T375]  ksys_unshare (kernel/fork.c:3243)
[   40.189600][  T375]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.189778][  T375]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.189978][  T375]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.190159][  T375]  ? __ia32_sys_open (fs/open.c:1374)
[   40.190341][  T375]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.190522][  T375]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.190700][  T375]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.190901][  T375]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.191080][  T375]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.191259][  T375]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.191466][  T375] RIP: 0033:0x7fcfae9b2bcb
[   40.191650][  T375] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.192181][  T375] RSP: 002b:00007ffde8f02dc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   40.192425][  T375] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcfae9b2bcb
[   40.192664][  T375] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.192919][  T375] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.193164][  T375] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffde8f04ff0
[   40.193404][  T375] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde8f06875
| [   40.198061][  T375] ------------[ cut here ]------------
| [   40.198236][  T375] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/375
| [   40.198538][  T375] Modules linked in:
| [   40.199016][  T375] Tainted: [W]=WARN
[   40.199165][  T375] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.199372][  T375] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.199592][  T375] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.200115][  T375] RSP: 0018:ffa0000000ed7918 EFLAGS: 00010286
[   40.200328][  T375] RAX: 00000000ffffffa6 RBX: ff1100000f4fe200 RCX: 1ff40000001daee9
[   40.200569][  T375] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f4fe2bc
[   40.200811][  T375] RBP: ff11000005f39000 R08: 1fe2200001e9fc59 R09: ff1100000f955180
[   40.201072][  T375] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   40.201315][  T375] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005f39000
[   40.201560][  T375] FS:  00007fcfae6f0840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   40.201848][  T375] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.202065][  T375] CR2: 00007fcfae8f7430 CR3: 0000000017699003 CR4: 0000000000771ef0
[   40.202310][  T375] PKRU: 55555554
[   40.202454][  T375] Call Trace:
[   40.202598][  T375]  <TASK>
[   40.202713][  T375]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.202925][  T375]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.203106][  T375]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.203256][  T375]  register_netdevice (net/core/dev.c:11488)
[   40.203436][  T375]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.203648][  T375]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   40.203829][  T375]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   40.204038][  T375]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   40.204217][  T375]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   40.204402][  T375]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   40.204584][  T375]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   40.204763][  T375]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   40.204966][  T375]  ops_init (net/core/net_namespace.c:137)
[   40.205120][  T375]  setup_net (net/core/net_namespace.c:446)
[   40.205268][  T375]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.205446][  T375]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.205625][  T375]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.205805][  T375]  copy_net_ns (net/core/net_namespace.c:579)
[   40.206011][  T375]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.206193][  T375]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.206375][  T375]  ksys_unshare (kernel/fork.c:3243)
[   40.206555][  T375]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.206732][  T375]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.206932][  T375]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.207116][  T375]  ? __ia32_sys_open (fs/open.c:1374)
[   40.207298][  T375]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.207475][  T375]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.207657][  T375]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.207848][  T375]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.208034][  T375]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.208214][  T375]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.208422][  T375] RIP: 0033:0x7fcfae9b2bcb
[   40.208606][  T375] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.209139][  T375] RSP: 002b:00007ffde8f02dc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   40.209384][  T375] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcfae9b2bcb
[   40.209625][  T375] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.209890][  T375] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.210135][  T375] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffde8f04ff0
[   40.210377][  T375] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde8f06875
| [   40.215155][  T375] ------------[ cut here ]------------
| [   40.215335][  T375] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/375
| [   40.215614][  T375] Modules linked in:
| [   40.216102][  T375] Tainted: [W]=WARN
[   40.216248][  T375] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.216459][  T375] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.216679][  T375] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.217219][  T375] RSP: 0018:ffa0000000ed78f8 EFLAGS: 00010286
[   40.217434][  T375] RAX: 00000000ffffffa6 RBX: ff11000009518ac0 RCX: 1ff40000001daee5
[   40.217677][  T375] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009518b7c
[   40.218505][  T375] RBP: ff11000002529000 R08: 1fe22000012a3171 R09: ff1100000f955180
[   40.218879][  T375] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   40.219183][  T375] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002529000
[   40.219493][  T375] FS:  00007fcfae6f0840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   40.219826][  T375] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.220173][  T375] CR2: 00007fcfae8f7430 CR3: 0000000017699003 CR4: 0000000000771ef0
[   40.220476][  T375] PKRU: 55555554
[   40.220677][  T375] Call Trace:
[   40.220899][  T375]  <TASK>
[   40.221074][  T375]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.221309][  T375]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.221547][  T375]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.221750][  T375]  register_netdevice (net/core/dev.c:11488)
[   40.222008][  T375]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.222281][  T375]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   40.222516][  T375]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   40.222750][  T375]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   40.223004][  T375]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   40.223242][  T375]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   40.223477][  T375]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   40.223712][  T375]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   40.223970][  T375]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   40.224207][  T375]  vti_init_net (net/ipv4/ip_vti.c:517)
[   40.224442][  T375]  ops_init (net/core/net_namespace.c:137)
[   40.224643][  T375]  setup_net (net/core/net_namespace.c:446)
[   40.224860][  T375]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.225100][  T375]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.225333][  T375]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.225566][  T375]  copy_net_ns (net/core/net_namespace.c:579)
[   40.225803][  T375]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.226063][  T375]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.226300][  T375]  ksys_unshare (kernel/fork.c:3243)
[   40.226534][  T375]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.226768][  T375]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.227027][  T375]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.227265][  T375]  ? __ia32_sys_open (fs/open.c:1374)
[   40.227504][  T375]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.227735][  T375]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.227991][  T375]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.228228][  T375]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.228460][  T375]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.228693][  T375]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.228976][  T375] RIP: 0033:0x7fcfae9b2bcb
[   40.229218][  T375] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.229783][  T375] RSP: 002b:00007ffde8f02dc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   40.230105][  T375] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcfae9b2bcb
[   40.230405][  T375] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.230702][  T375] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.231023][  T375] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffde8f04ff0
[   40.231319][  T375] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde8f06875
| [   40.236449][  T375] ------------[ cut here ]------------
| [   40.236597][  T375] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/375
| [   40.236830][  T375] Modules linked in:
| [   40.237212][  T375] Tainted: [W]=WARN
[   40.237310][  T375] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.237475][  T375] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.237645][  T375] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.238125][  T375] RSP: 0018:ffa0000000ed7a78 EFLAGS: 00010286
[   40.238290][  T375] RAX: 00000000ffffffa6 RBX: ff1100000cbb9c40 RCX: 1ff40000001daf15
[   40.238484][  T375] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cbb9cfc
[   40.238680][  T375] RBP: ff1100000a504000 R08: 1fe22000019773a1 R09: ff1100000f955180
[   40.238882][  T375] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   40.239076][  T375] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a504000
[   40.239271][  T375] FS:  00007fcfae6f0840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   40.239503][  T375] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.239666][  T375] CR2: 00005648920de130 CR3: 0000000017699005 CR4: 0000000000771ef0
[   40.239873][  T375] PKRU: 55555554
[   40.239971][  T375] Call Trace:
[   40.240067][  T375]  <TASK>
[   40.240134][  T375]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.240264][  T375]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.240394][  T375]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.240497][  T375]  register_netdevice (net/core/dev.c:11488)
[   40.240629][  T375]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.240790][  T375]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.240933][  T375]  register_netdev (net/core/dev.c:11552)
[   40.241063][  T375]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   40.241194][  T375]  ops_init (net/core/net_namespace.c:137)
[   40.241295][  T375]  setup_net (net/core/net_namespace.c:446)
[   40.241394][  T375]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.241524][  T375]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.241654][  T375]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.241786][  T375]  copy_net_ns (net/core/net_namespace.c:579)
[   40.241927][  T375]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.242060][  T375]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.242194][  T375]  ksys_unshare (kernel/fork.c:3243)
[   40.242323][  T375]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.242453][  T375]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.242583][  T375]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.242714][  T375]  ? __ia32_sys_open (fs/open.c:1374)
[   40.242850][  T375]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.242982][  T375]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.243112][  T375]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.243241][  T375]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.243373][  T375]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.243504][  T375]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.243666][  T375] RIP: 0033:0x7fcfae9b2bcb
[   40.243802][  T375] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.244280][  T375] RSP: 002b:00007ffde8f02dc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   40.244476][  T375] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcfae9b2bcb
[   40.244668][  T375] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.244872][  T375] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.245065][  T375] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffde8f04ff0
[   40.245258][  T375] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde8f06875
| [   40.250216][  T375] ------------[ cut here ]------------
| [   40.250352][  T375] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/375
| [   40.250577][  T375] Modules linked in:
| [   40.250952][  T375] Tainted: [W]=WARN
[   40.251050][  T375] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.251212][  T375] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.251384][  T375] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.251851][  T375] RSP: 0018:ffa0000000ed7a68 EFLAGS: 00010286
[   40.252019][  T375] RAX: 00000000ffffffa6 RBX: ff1100000b93ae40 RCX: 1ff40000001daf13
[   40.252214][  T375] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b93aefc
[   40.252408][  T375] RBP: ff110000118b9000 R08: 1fe22000017275e1 R09: ff1100000f955180
[   40.252600][  T375] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   40.252795][  T375] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000118b9000
[   40.253001][  T375] FS:  00007fcfae6f0840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   40.253226][  T375] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.253389][  T375] CR2: 00005648920de130 CR3: 0000000017699005 CR4: 0000000000771ef0
[   40.253587][  T375] PKRU: 55555554
[   40.253684][  T375] Call Trace:
[   40.253781][  T375]  <TASK>
[   40.253852][  T375]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.253986][  T375]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.254117][  T375]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.254216][  T375]  register_netdevice (net/core/dev.c:11488)
[   40.254346][  T375]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.254513][  T375]  register_netdev (net/core/dev.c:11552)
[   40.254645][  T375]  sit_init_net (net/ipv6/sit.c:1860)
[   40.254778][  T375]  ops_init (net/core/net_namespace.c:137)
[   40.254892][  T375]  setup_net (net/core/net_namespace.c:446)
[   40.254991][  T375]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.255121][  T375]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.255252][  T375]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.255396][  T375]  copy_net_ns (net/core/net_namespace.c:579)
[   40.255530][  T375]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.255663][  T375]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.255793][  T375]  ksys_unshare (kernel/fork.c:3243)
[   40.255993][  T375]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.256124][  T375]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.256254][  T375]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.256387][  T375]  ? __ia32_sys_open (fs/open.c:1374)
[   40.256521][  T375]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.256650][  T375]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.256779][  T375]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.256966][  T375]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.257096][  T375]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.257226][  T375]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.257386][  T375] RIP: 0033:0x7fcfae9b2bcb
[   40.257526][  T375] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.258047][  T375] RSP: 002b:00007ffde8f02dc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   40.258243][  T375] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcfae9b2bcb
[   40.258439][  T375] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.258632][  T375] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.258825][  T375] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffde8f04ff0
[   40.259082][  T375] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde8f06875
| [   40.263793][  T375] ------------[ cut here ]------------
| [   40.263999][  T375] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/375
| [   40.264225][  T375] Modules linked in:
| [   40.264591][  T375] Tainted: [W]=WARN
[   40.264688][  T375] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.264856][  T375] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.265030][  T375] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.265495][  T375] RSP: 0018:ffa0000000ed7a78 EFLAGS: 00010286
[   40.265674][  T375] RAX: 00000000ffffffa6 RBX: ff11000006117380 RCX: 1ff40000001daf15
[   40.265876][  T375] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000611743c
[   40.266072][  T375] RBP: ff1100001420c000 R08: 1fe2200000c22e89 R09: ff1100000f955180
[   40.266265][  T375] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   40.266461][  T375] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001420c000
[   40.266654][  T375] FS:  00007fcfae6f0840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   40.266894][  T375] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.267055][  T375] CR2: 00005648920de130 CR3: 0000000017699005 CR4: 0000000000771ef0
[   40.267250][  T375] PKRU: 55555554
[   40.267347][  T375] Call Trace:
[   40.267446][  T375]  <TASK>
[   40.267513][  T375]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.267643][  T375]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.267775][  T375]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.267880][  T375]  register_netdevice (net/core/dev.c:11488)
[   40.268013][  T375]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.268173][  T375]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.268306][  T375]  register_netdev (net/core/dev.c:11552)
[   40.268436][  T375]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   40.268567][  T375]  ops_init (net/core/net_namespace.c:137)
[   40.268667][  T375]  setup_net (net/core/net_namespace.c:446)
[   40.268765][  T375]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.268907][  T375]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.269037][  T375]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.269168][  T375]  copy_net_ns (net/core/net_namespace.c:579)
[   40.269299][  T375]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.269430][  T375]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.269562][  T375]  ksys_unshare (kernel/fork.c:3243)
[   40.269691][  T375]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.269820][  T375]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.269959][  T375]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.270089][  T375]  ? __ia32_sys_open (fs/open.c:1374)
[   40.270220][  T375]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.270349][  T375]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.270476][  T375]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.270607][  T375]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.270737][  T375]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.270876][  T375]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.271035][  T375] RIP: 0033:0x7fcfae9b2bcb
[   40.271168][  T375] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.271629][  T375] RSP: 002b:00007ffde8f02dc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   40.271825][  T375] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcfae9b2bcb
[   40.272028][  T375] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.272219][  T375] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.272411][  T375] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffde8f04ff0
[   40.272602][  T375] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffde8f06875
| [   40.367488][  T378] ------------[ cut here ]------------
| [   40.367676][  T378] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/378
| [   40.367982][  T378] Modules linked in:
| [   40.368457][  T378] Tainted: [W]=WARN
[   40.368606][  T378] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.368821][  T378] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.369065][  T378] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.369584][  T378] RSP: 0018:ffa0000000f96e30 EFLAGS: 00010286
[   40.369799][  T378] RAX: 00000000ffffffa6 RBX: ff1100000ce1e900 RCX: 1ff40000001f2d8c
[   40.370062][  T378] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce1e9bc
[   40.370308][  T378] RBP: ff110000156e1000 R08: 1fe22000019c3d39 R09: ff1100000a442e80
[   40.370555][  T378] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   40.370801][  T378] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012d55210
[   40.371574][  T378] FS:  00007f651e65e840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   40.371873][  T378] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.372092][  T378] CR2: 000000000042ebe0 CR3: 000000000e487002 CR4: 0000000000771ef0
[   40.372340][  T378] PKRU: 55555554
[   40.372488][  T378] Call Trace:
[   40.372635][  T378]  <TASK>
[   40.372752][  T378]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.372957][  T378]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.373106][  T378]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   40.373320][  T378]  __dev_notify_flags (net/core/dev.c:9787)
[   40.373509][  T378]  ? netif_change_name (net/core/dev.c:1495)
[   40.373689][  T378]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   40.373889][  T378]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   40.374069][  T378]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   40.374253][  T378]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   40.374438][  T378]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.374620][  T378]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   40.374805][  T378]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   40.375004][  T378]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.375189][  T378]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   40.375373][  T378]  veth_newlink (drivers/net/veth.c:1871)
[   40.375560][  T378]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   40.375739][  T378]  ? kasan_save_stack (mm/kasan/common.c:57)
[   40.375940][  T378]  ? kasan_save_track (mm/kasan/common.c:78)
[   40.376128][  T378]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   40.376325][  T378]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   40.376504][  T378]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   40.376687][  T378]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   40.376885][  T378]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   40.377067][  T378]  ? rtnl_create_link (net/core/rtnetlink.c:3733)
[   40.377251][  T378]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   40.377437][  T378]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   40.377617][  T378]  ? __dev_get_by_name (net/core/dev.c:883)
[   40.377796][  T378]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   40.377994][  T378]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   40.378180][  T378]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   40.378363][  T378]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.378541][  T378]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.378721][  T378]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.378920][  T378]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   40.379101][  T378]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.379286][  T378]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.379467][  T378]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.379648][  T378]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   40.379830][  T378]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.380031][  T378]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.380213][  T378]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.380400][  T378]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.380579][  T378]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.380762][  T378]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   40.380956][  T378]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.381137][  T378]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   40.381322][  T378]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   40.381503][  T378]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   40.381690][  T378]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   40.381893][  T378]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   40.382074][  T378]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.382255][  T378]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   40.382435][  T378]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   40.382616][  T378]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   40.382801][  T378]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   40.383005][  T378]  ? copy_msghdr_from_user (net/socket.c:2635)
[   40.383190][  T378]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   40.383401][  T378]  ? move_addr_to_kernel (net/socket.c:258)
[   40.383586][  T378]  ___sys_sendmsg (net/socket.c:2752)
[   40.383767][  T378]  ? copy_msghdr_from_user (net/socket.c:2603)
[   40.383972][  T378]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.384193][  T378]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   40.384376][  T378]  __sys_sendmsg (net/socket.c:2784)
[   40.384566][  T378]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   40.384752][  T378]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   40.384951][  T378]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.385136][  T378]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.385319][  T378]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.385498][  T378]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.385679][  T378]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.385910][  T378] RIP: 0033:0x7f651e89808e
[   40.386104][  T378] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   40.386619][  T378] RSP: 002b:00007ffc93292040 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   40.386885][  T378] RAX: ffffffffffffffda RBX: 00007ffc932927f8 RCX: 00007f651e89808e
[   40.387134][  T378] RDX: 0000000000000000 RSI: 00007ffc932920f0 RDI: 0000000000000005
[   40.387378][  T378] RBP: 00007ffc93292050 R08: 0000000000000000 R09: 0000000000000000
[   40.387624][  T378] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d7
[   40.387889][  T378] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc932927b0
| [   40.401765][  T378] ------------[ cut here ]------------
| [   40.401967][  T378] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/378
| [   40.402246][  T378] Modules linked in:
| [   40.402704][  T378] Tainted: [W]=WARN
[   40.402863][  T378] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.403082][  T378] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.403300][  T378] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.403812][  T378] RSP: 0018:ffa0000000f971b0 EFLAGS: 00010286
[   40.404157][  T378] RAX: 00000000ffffffa6 RBX: ff1100000cab0740 RCX: 1ff40000001f2dfc
[   40.404398][  T378] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cab07fc
[   40.404643][  T378] RBP: ff1100000a5bc000 R08: 1fe2200001956101 R09: ff1100000a442e80
[   40.404907][  T378] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   40.405149][  T378] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa8c03b20
[   40.405394][  T378] FS:  00007f651e65e840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   40.405674][  T378] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.405903][  T378] CR2: 000000000042ebe0 CR3: 000000000e487002 CR4: 0000000000771ef0
[   40.406149][  T378] PKRU: 55555554
[   40.406293][  T378] Call Trace:
[   40.406439][  T378]  <TASK>
[   40.406554][  T378]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.406735][  T378]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.406907][  T378]  __dev_notify_flags (net/core/dev.c:9787)
[   40.407087][  T378]  ? netif_change_name (net/core/dev.c:1495)
[   40.407267][  T378]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   40.407446][  T378]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   40.407627][  T378]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   40.407807][  T378]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   40.408009][  T378]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   40.408192][  T378]  ? __dev_get_by_name (net/core/dev.c:883)
[   40.408372][  T378]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   40.408560][  T378]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   40.408743][  T378]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   40.408944][  T378]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.409125][  T378]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.409305][  T378]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.409482][  T378]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   40.409663][  T378]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.409859][  T378]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.410047][  T378]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.410227][  T378]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   40.410407][  T378]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.410585][  T378]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.410762][  T378]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.410960][  T378]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.411156][  T378]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.411336][  T378]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   40.411515][  T378]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.411696][  T378]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   40.411897][  T378]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   40.412076][  T378]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   40.412257][  T378]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   40.412441][  T378]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   40.412621][  T378]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.412801][  T378]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   40.413003][  T378]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   40.413203][  T378]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   40.413384][  T378]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   40.413564][  T378]  ? copy_msghdr_from_user (net/socket.c:2635)
[   40.413742][  T378]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   40.413978][  T378]  ? move_addr_to_kernel (net/socket.c:258)
[   40.414163][  T378]  ___sys_sendmsg (net/socket.c:2752)
[   40.414343][  T378]  ? copy_msghdr_from_user (net/socket.c:2603)
[   40.414529][  T378]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.414747][  T378]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   40.414949][  T378]  __sys_sendmsg (net/socket.c:2784)
[   40.415131][  T378]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   40.415320][  T378]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   40.415499][  T378]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.415683][  T378]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.415885][  T378]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.416067][  T378]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.416248][  T378]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.416460][  T378] RIP: 0033:0x7f651e89808e
[   40.416649][  T378] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   40.417181][  T378] RSP: 002b:00007ffc93292040 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   40.417427][  T378] RAX: ffffffffffffffda RBX: 00007ffc932927f8 RCX: 00007f651e89808e
[   40.417673][  T378] RDX: 0000000000000000 RSI: 00007ffc932920f0 RDI: 0000000000000005
[   40.417939][  T378] RBP: 00007ffc93292050 R08: 0000000000000000 R09: 0000000000000000
[   40.418182][  T378] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d7
[   40.418424][  T378] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc932927b0
| [   40.442404][  T379] ------------[ cut here ]------------
| [   40.442575][  T379] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/379
| [   40.442801][  T379] Modules linked in:
| [   40.443652][  T379] Tainted: [W]=WARN
[   40.443772][  T379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.444017][  T379] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.444187][  T379] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.444645][  T379] RSP: 0018:ffa0000000fa7020 EFLAGS: 00010286
[   40.444806][  T379] RAX: 00000000ffffffa6 RBX: ff1100000fc1da80 RCX: 1ff40000001f4dca
[   40.445009][  T379] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fc1db3c
[   40.445200][  T379] RBP: ff1100000a5bc000 R08: 1fe2200001f83b69 R09: ff1100000a445158
[   40.445389][  T379] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   40.445586][  T379] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   40.445781][  T379] FS:  00007f497dac4840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   40.446012][  T379] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.446174][  T379] CR2: 0000000028a19988 CR3: 00000000159ad003 CR4: 0000000000771ef0
[   40.446369][  T379] PKRU: 55555554
[   40.446465][  T379] Call Trace:
[   40.446562][  T379]  <TASK>
[   40.446629][  T379]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.446759][  T379]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.446868][  T379]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   40.446997][  T379]  __dev_notify_flags (net/core/dev.c:9787)
[   40.447126][  T379]  ? netif_change_name (net/core/dev.c:1495)
[   40.447259][  T379]  ? __dev_change_flags (net/core/dev.c:9752)
[   40.447388][  T379]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   40.447518][  T379]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.447646][  T379]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   40.447778][  T379]  netif_change_flags (net/core/dev.c:9820)
[   40.447923][  T379]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   40.448052][  T379]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   40.448186][  T379]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   40.448317][  T379]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   40.448479][  T379]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   40.448608][  T379]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.448735][  T379]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   40.448873][  T379]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   40.449005][  T379]  ? __kernel_text_address (kernel/extable.c:79)
[   40.449135][  T379]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.449266][  T379]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.449395][  T379]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   40.449526][  T379]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.449656][  T379]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.449783][  T379]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.449925][  T379]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.450056][  T379]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   40.450186][  T379]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   40.450314][  T379]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   40.450441][  T379]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   40.450571][  T379]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   40.450701][  T379]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   40.450837][  T379]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   40.450975][  T379]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.451105][  T379]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.451233][  T379]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.451360][  T379]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   40.451490][  T379]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.451621][  T379]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.451749][  T379]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.451883][  T379]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.452015][  T379]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.452145][  T379]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.452273][  T379]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   40.452401][  T379]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.452529][  T379]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.452655][  T379]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.452785][  T379]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.452923][  T379]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.453055][  T379]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   40.453182][  T379]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.453311][  T379]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   40.453441][  T379]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   40.453570][  T379]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   40.453701][  T379]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   40.453831][  T379]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   40.453972][  T379]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.454101][  T379]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   40.454231][  T379]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   40.454361][  T379]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   40.454493][  T379]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   40.454621][  T379]  ? copy_msghdr_from_user (net/socket.c:2635)
[   40.454748][  T379]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   40.454911][  T379]  ? move_addr_to_kernel (net/socket.c:258)
[   40.455043][  T379]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   40.455171][  T379]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.455301][  T379]  ___sys_sendmsg (net/socket.c:2752)
[   40.455430][  T379]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   40.455591][  T379]  ? copy_msghdr_from_user (net/socket.c:2603)
[   40.455732][  T379]  __sys_sendmsg (net/socket.c:2784)
[   40.455871][  T379]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   40.456003][  T379]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   40.456164][  T379]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   40.456293][  T379]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.456425][  T379]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.456556][  T379]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.456683][  T379]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.456812][  T379]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.456980][  T379] RIP: 0033:0x7f497dcfe08e
[   40.457114][  T379] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   40.457572][  T379] RSP: 002b:00007ffd9ea96a00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   40.457765][  T379] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f497dcfe08e
[   40.457974][  T379] RDX: 0000000000000000 RSI: 00007ffd9ea96ab0 RDI: 0000000000000005
[   40.458165][  T379] RBP: 00007ffd9ea96a10 R08: 0000000000000000 R09: 0000000000000000
[   40.458356][  T379] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d7
[   40.458549][  T379] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd9ea97180
| [   40.500410][  T380] ------------[ cut here ]------------
| [   40.500623][  T380] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/380
| [   40.500917][  T380] Modules linked in:
| [   40.501388][  T380] Tainted: [W]=WARN
[   40.501533][  T380] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.501739][  T380] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.502080][  T380] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.502664][  T380] RSP: 0018:ffa0000000fb7020 EFLAGS: 00010286
[   40.502993][  T380] RAX: 00000000ffffffa6 RBX: ff1100000fc1ce40 RCX: 1ff40000001f6dca
[   40.503309][  T380] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fc1cefc
[   40.503642][  T380] RBP: ff110000156e1000 R08: 1fe2200001f839e1 R09: ff1100000dda0b58
[   40.503979][  T380] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   40.504304][  T380] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   40.504599][  T380] FS:  00007fc0120b4840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   40.504945][  T380] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.505208][  T380] CR2: 0000000033df0988 CR3: 0000000004ef0006 CR4: 0000000000771ef0
[   40.505506][  T380] PKRU: 55555554
[   40.505656][  T380] Call Trace:
[   40.505796][  T380]  <TASK>
[   40.505928][  T380]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.506106][  T380]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.506252][  T380]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   40.506428][  T380]  __dev_notify_flags (net/core/dev.c:9787)
[   40.506608][  T380]  ? netif_change_name (net/core/dev.c:1495)
[   40.506788][  T380]  ? __dev_change_flags (net/core/dev.c:9752)
[   40.506985][  T380]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   40.507162][  T380]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.507340][  T380]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   40.507519][  T380]  netif_change_flags (net/core/dev.c:9820)
[   40.507696][  T380]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   40.507899][  T380]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   40.508081][  T380]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   40.508259][  T380]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   40.508468][  T380]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   40.508648][  T380]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.508824][  T380]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   40.509022][  T380]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   40.509205][  T380]  ? __kernel_text_address (kernel/extable.c:79)
[   40.509383][  T380]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.509562][  T380]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.509738][  T380]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   40.509937][  T380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.510115][  T380]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.510291][  T380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.510470][  T380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.510648][  T380]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   40.510827][  T380]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   40.511026][  T380]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   40.511203][  T380]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   40.511383][  T380]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   40.511566][  T380]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   40.511749][  T380]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   40.511956][  T380]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.512133][  T380]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.512310][  T380]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.512488][  T380]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   40.512664][  T380]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.512860][  T380]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.513045][  T380]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.513227][  T380]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.513403][  T380]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.513580][  T380]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.513757][  T380]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   40.513955][  T380]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.514131][  T380]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.514310][  T380]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.514489][  T380]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.514668][  T380]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.514860][  T380]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   40.515047][  T380]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.515225][  T380]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   40.515407][  T380]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   40.515584][  T380]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   40.515763][  T380]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   40.515958][  T380]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   40.516138][  T380]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.516317][  T380]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   40.516497][  T380]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   40.516674][  T380]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   40.516876][  T380]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   40.517057][  T380]  ? copy_msghdr_from_user (net/socket.c:2635)
[   40.517233][  T380]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   40.517445][  T380]  ? move_addr_to_kernel (net/socket.c:258)
[   40.517623][  T380]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   40.517800][  T380]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.518000][  T380]  ___sys_sendmsg (net/socket.c:2752)
[   40.518177][  T380]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   40.518385][  T380]  ? copy_msghdr_from_user (net/socket.c:2603)
[   40.518574][  T380]  __sys_sendmsg (net/socket.c:2784)
[   40.518754][  T380]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   40.518955][  T380]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   40.519170][  T380]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   40.519349][  T380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.519540][  T380]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.519717][  T380]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.519917][  T380]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.520097][  T380]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.520308][  T380] RIP: 0033:0x7fc0122ee08e
[   40.520495][  T380] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   40.521020][  T380] RSP: 002b:00007ffc9de93f30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   40.521264][  T380] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fc0122ee08e
[   40.521501][  T380] RDX: 0000000000000000 RSI: 00007ffc9de93fe0 RDI: 0000000000000005
[   40.521740][  T380] RBP: 00007ffc9de93f40 R08: 0000000000000000 R09: 0000000000000000
[   40.522003][  T380] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d7
[   40.522246][  T380] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc9de946b0
| [   40.524703][   T71] ------------[ cut here ]------------
| [   40.524844][   T71] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/71
| [   40.525093][   T71] Modules linked in:
| [   40.525463][   T71] Tainted: [W]=WARN
[   40.525553][   T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.525702][   T71] Workqueue: events_unbound linkwatch_event
[   40.525871][   T71] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.526027][   T71] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.526466][   T71] RSP: 0018:ffa00000004c79e0 EFLAGS: 00010286
[   40.526615][   T71] RAX: 00000000ffffffa6 RBX: ff1100000fc1c580 RCX: 1ff4000000098f02
[   40.526796][   T71] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fc1c63c
[   40.526985][   T71] RBP: ff1100000a5bc000 R08: 1fe2200001f838c9 R09: ff11000009222ea8
[   40.527162][   T71] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   40.527338][   T71] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   40.527519][   T71] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   40.527726][   T71] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.527893][   T71] CR2: 0000000028a19988 CR3: 000000003174d001 CR4: 0000000000771ef0
[   40.528072][   T71] PKRU: 55555554
[   40.528163][   T71] Call Trace:
[   40.528254][   T71]  <TASK>
[   40.528317][   T71]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.528436][   T71]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.528555][   T71]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.528647][   T71]  netif_state_change (net/core/dev.c:1605)
[   40.528769][   T71]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   40.528932][   T71]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   40.529051][   T71]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   40.529175][   T71]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   40.529297][   T71]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   40.529415][   T71]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   40.529535][   T71]  process_one_work (kernel/workqueue.c:3314)
[   40.529663][   T71]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   40.529783][   T71]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.529919][   T71]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   40.530043][   T71]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.530166][   T71]  kthread (kernel/kthread.c:436)
[   40.530260][   T71]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.530408][   T71]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.530528][   T71]  ret_from_fork (arch/x86/kernel/process.c:158)
[   40.530648][   T71]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   40.530801][   T71]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   40.530937][   T71]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.531056][   T71]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   40.554811][  T381] ------------[ cut here ]------------
| [   40.555017][  T381] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/381
| [   40.555293][  T381] Modules linked in:
| [   40.555795][  T381] Tainted: [W]=WARN
[   40.555977][  T381] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.556198][  T381] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.556424][  T381] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.556961][  T381] RSP: 0018:ffa0000000fc7050 EFLAGS: 00010286
[   40.557201][  T381] RAX: 00000000ffffffa6 RBX: ff11000009518e40 RCX: 1ff40000001f8dd0
[   40.557442][  T381] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009518efc
[   40.557684][  T381] RBP: ff1100000a5bc000 R08: 1fe22000012a31e1 R09: ff1100000f720b80
[   40.558546][  T381] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   40.558782][  T381] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   40.559045][  T381] FS:  00007f1b831c5840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   40.559321][  T381] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.559531][  T381] CR2: 000000003abb2988 CR3: 000000000b055002 CR4: 0000000000771ef0
[   40.559771][  T381] PKRU: 55555554
[   40.559932][  T381] Call Trace:
[   40.560077][  T381]  <TASK>
[   40.560193][  T381]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.560371][  T381]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   40.560551][  T381]  notifier_call_chain (kernel/notifier.c:85)
[   40.560735][  T381]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   40.560935][  T381]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.561116][  T381]  ? netif_set_group (net/core/dev.c:9947)
[   40.561297][  T381]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   40.561504][  T381]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   40.561683][  T381]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   40.561885][  T381]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   40.562067][  T381]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   40.562275][  T381]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   40.562452][  T381]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.562631][  T381]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   40.562808][  T381]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   40.563012][  T381]  ? __kernel_text_address (kernel/extable.c:79)
[   40.563192][  T381]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.563375][  T381]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.563554][  T381]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   40.563732][  T381]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.563929][  T381]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.564109][  T381]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.564286][  T381]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.564464][  T381]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   40.564648][  T381]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   40.564826][  T381]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   40.565026][  T381]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   40.565210][  T381]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   40.565392][  T381]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   40.565572][  T381]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.565748][  T381]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.565948][  T381]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.566130][  T381]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   40.566310][  T381]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.566490][  T381]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.566664][  T381]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.566855][  T381]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.567041][  T381]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.567218][  T381]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.567396][  T381]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   40.567576][  T381]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.567750][  T381]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.567947][  T381]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.568127][  T381]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.568303][  T381]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.568480][  T381]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   40.568657][  T381]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.568848][  T381]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   40.569042][  T381]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   40.569218][  T381]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   40.569398][  T381]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   40.569575][  T381]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   40.569753][  T381]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.569953][  T381]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   40.570132][  T381]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   40.570313][  T381]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   40.570498][  T381]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   40.570674][  T381]  ? copy_msghdr_from_user (net/socket.c:2635)
[   40.570861][  T381]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   40.571077][  T381]  ? move_addr_to_kernel (net/socket.c:258)
[   40.571254][  T381]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   40.571431][  T381]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.571613][  T381]  ___sys_sendmsg (net/socket.c:2752)
[   40.571789][  T381]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   40.572018][  T381]  ? copy_msghdr_from_user (net/socket.c:2603)
[   40.572207][  T381]  __sys_sendmsg (net/socket.c:2784)
[   40.572384][  T381]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   40.572560][  T381]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   40.572772][  T381]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   40.572974][  T381]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.573156][  T381]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.573333][  T381]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.573509][  T381]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.573691][  T381]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.573921][  T381] RIP: 0033:0x7f1b833ff08e
[   40.574105][  T381] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   40.574617][  T381] RSP: 002b:00007fff57994ba0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   40.574881][  T381] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1b833ff08e
[   40.575123][  T381] RDX: 0000000000000000 RSI: 00007fff57994c50 RDI: 0000000000000005
[   40.575365][  T381] RBP: 00007fff57994bb0 R08: 0000000000000000 R09: 0000000000000000
[   40.575605][  T381] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d8
[   40.575860][  T381] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff57995320
| [   40.604932][  T382] ------------[ cut here ]------------
| [   40.605078][  T382] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/382
| [   40.605302][  T382] Modules linked in:
| [   40.605663][  T382] Tainted: [W]=WARN
[   40.605762][  T382] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.605941][  T382] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.606107][  T382] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.606565][  T382] RSP: 0018:ffa0000000fb7150 EFLAGS: 00010286
[   40.606734][  T382] RAX: 00000000ffffffa6 RBX: ff1100000cf8da80 RCX: 1ff40000001f6df0
[   40.606943][  T382] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf8db3c
[   40.607136][  T382] RBP: ff110000156e1000 R08: 1fe22000019f1b69 R09: ff1100000f722e58
[   40.607330][  T382] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   40.607526][  T382] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000004f451c0
[   40.607723][  T382] FS:  00007fa4b1350840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   40.607955][  T382] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.608115][  T382] CR2: 00000000004ebb20 CR3: 000000000f0fc005 CR4: 0000000000771ef0
[   40.608306][  T382] PKRU: 55555554
[   40.608402][  T382] Call Trace:
[   40.608498][  T382]  <TASK>
[   40.608565][  T382]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.608693][  T382]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.608823][  T382]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.608929][  T382]  netif_state_change (net/core/dev.c:1605)
[   40.609058][  T382]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   40.609219][  T382]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   40.609380][  T382]  linkwatch_sync_dev (net/core/link_watch.c:295)
[   40.609509][  T382]  rtnl_getlink (net/core/rtnetlink.c:4273)
[   40.609639][  T382]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.609766][  T382]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.609911][  T382]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   40.610041][  T382]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   40.610171][  T382]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.610299][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.610447][  T382]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.610574][  T382]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.610703][  T382]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   40.610830][  T382]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.610971][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.611102][  T382]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.611232][  T382]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   40.611361][  T382]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   40.611492][  T382]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.611621][  T382]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.611749][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.611886][  T382]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.612018][  T382]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.612147][  T382]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   40.612274][  T382]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.612403][  T382]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   40.612535][  T382]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   40.612663][  T382]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   40.612792][  T382]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   40.612933][  T382]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   40.613062][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.613190][  T382]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   40.613320][  T382]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   40.613448][  T382]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   40.613579][  T382]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   40.613706][  T382]  ? copy_msghdr_from_user (net/socket.c:2635)
[   40.613839][  T382]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   40.614002][  T382]  ? move_addr_to_kernel (net/socket.c:258)
[   40.614130][  T382]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   40.614261][  T382]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   40.614421][  T382]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   40.614550][  T382]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   40.614711][  T382]  ___sys_sendmsg (net/socket.c:2752)
[   40.614844][  T382]  ? copy_msghdr_from_user (net/socket.c:2603)
[   40.614976][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.615113][  T382]  ? move_addr_to_user (./include/linux/uaccess.h:236 net/socket.c:302)
[   40.615242][  T382]  ? do_getsockname (net/socket.c:2192)
[   40.615373][  T382]  __sys_sendmsg (net/socket.c:2784)
[   40.615503][  T382]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   40.615637][  T382]  ? __sys_getsockname (net/socket.c:2210)
[   40.615765][  T382]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.615903][  T382]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.616032][  T382]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.616160][  T382]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.616290][  T382]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.616450][  T382] RIP: 0033:0x7fa4b158a08e
[   40.616586][  T382] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   40.617059][  T382] RSP: 002b:00007ffda7e66510 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   40.617254][  T382] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa4b158a08e
[   40.617448][  T382] RDX: 0000000000000000 RSI: 00007ffda7e665c0 RDI: 0000000000000006
[   40.617640][  T382] RBP: 00007ffda7e66520 R08: 0000000000000000 R09: 0000000000000000
[   40.617838][  T382] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d7
[   40.618039][  T382] R13: 00007ffda7e66670 R14: 0000000000000000 R15: 0000000000000004
| [   40.620407][  T382] ------------[ cut here ]------------
| [   40.620539][  T382] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/382
| [   40.620771][  T382] Modules linked in:
| [   40.621782][  T382] Tainted: [W]=WARN
[   40.621894][  T382] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.622067][  T382] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.622246][  T382] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.622733][  T382] RSP: 0018:ffa0000000fb7050 EFLAGS: 00010286
[   40.622908][  T382] RAX: 00000000ffffffa6 RBX: ff1100000cf8c740 RCX: 1ff40000001f6dd0
[   40.623103][  T382] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf8c7fc
[   40.623297][  T382] RBP: ff110000156e1000 R08: 1fe22000019f1901 R09: ff1100000f722e80
[   40.623494][  T382] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   40.623688][  T382] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   40.623895][  T382] FS:  00007fa4b1350840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   40.624123][  T382] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.624287][  T382] CR2: 00007fa4b16201a0 CR3: 000000000f0fc005 CR4: 0000000000771ef0
[   40.624483][  T382] PKRU: 55555554
[   40.624582][  T382] Call Trace:
[   40.624681][  T382]  <TASK>
[   40.624749][  T382]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.624890][  T382]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   40.625021][  T382]  notifier_call_chain (kernel/notifier.c:85)
[   40.625154][  T382]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   40.625285][  T382]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.625415][  T382]  ? netif_set_group (net/core/dev.c:9947)
[   40.625548][  T382]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   40.625711][  T382]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   40.625850][  T382]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   40.625986][  T382]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   40.626116][  T382]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   40.626279][  T382]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   40.626410][  T382]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.626541][  T382]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   40.626671][  T382]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   40.626803][  T382]  ? __kernel_text_address (kernel/extable.c:79)
[   40.626948][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.627079][  T382]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.627209][  T382]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   40.627340][  T382]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.627470][  T382]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.627599][  T382]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.627729][  T382]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.627868][  T382]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   40.628000][  T382]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   40.628130][  T382]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   40.628260][  T382]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   40.628395][  T382]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   40.628529][  T382]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   40.628660][  T382]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.628791][  T382]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.628934][  T382]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.629064][  T382]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   40.629192][  T382]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.629324][  T382]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.629455][  T382]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.629584][  T382]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.629714][  T382]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.629849][  T382]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.629983][  T382]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   40.630112][  T382]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.630242][  T382]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.630370][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.630502][  T382]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.630632][  T382]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.630765][  T382]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   40.630905][  T382]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.631036][  T382]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   40.631168][  T382]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   40.631296][  T382]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   40.631428][  T382]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   40.631560][  T382]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   40.631689][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.631822][  T382]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   40.631963][  T382]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   40.632093][  T382]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   40.632223][  T382]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   40.632353][  T382]  ? copy_msghdr_from_user (net/socket.c:2635)
[   40.632481][  T382]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   40.632640][  T382]  ? move_addr_to_kernel (net/socket.c:258)
[   40.632771][  T382]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   40.632910][  T382]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.633043][  T382]  ___sys_sendmsg (net/socket.c:2752)
[   40.633171][  T382]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   40.633333][  T382]  ? copy_msghdr_from_user (net/socket.c:2603)
[   40.633477][  T382]  __sys_sendmsg (net/socket.c:2784)
[   40.633607][  T382]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   40.633738][  T382]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   40.633912][  T382]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   40.634043][  T382]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.634174][  T382]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.634304][  T382]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.634432][  T382]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.634562][  T382]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.634722][  T382] RIP: 0033:0x7fa4b158a08e
[   40.634867][  T382] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   40.635332][  T382] RSP: 002b:00007ffda7e68190 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   40.635529][  T382] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa4b158a08e
[   40.635722][  T382] RDX: 0000000000000000 RSI: 00007ffda7e68240 RDI: 0000000000000005
[   40.635923][  T382] RBP: 00007ffda7e681a0 R08: 0000000000000000 R09: 0000000000000000
[   40.636115][  T382] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3d8
[   40.636309][  T382] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffda7e68910
| [   43.741649][   T12] ------------[ cut here ]------------
| [   43.742221][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   43.742601][   T12] Modules linked in:
| [   43.743177][   T12] Tainted: [W]=WARN
[   43.743318][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.743546][   T12] Workqueue: netns cleanup_net
[   43.743739][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.743990][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.744742][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   43.745011][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c40f540 RCX: 1ff4000000018eed
[   43.745288][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c40f5fc
[   43.745563][   T12] RBP: ff1100001420c000 R08: 1fe2200001881ec1 R09: ff11000001aed1d0
[   43.745842][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   43.746114][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   43.746384][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   43.746701][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.746941][   T12] CR2: 00007f9a7e89b000 CR3: 0000000009524006 CR4: 0000000000771ef0
[   43.747224][   T12] PKRU: 55555554
[   43.747358][   T12] Call Trace:
[   43.747491][   T12]  <TASK>
[   43.747586][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   43.747814][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.748061][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   43.748249][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   43.748433][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.748614][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   43.748794][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.748989][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   43.749171][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.749350][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.749540][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.749720][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.749909][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.750091][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.750266][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.750446][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.750634][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.750814][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.751020][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.751206][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.751388][   T12]  kthread (kernel/kthread.c:436)
[   43.751525][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.751748][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.751940][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.752122][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.752331][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.752513][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.752689][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.756021][   T12] ------------[ cut here ]------------
| [   43.756153][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   43.756387][   T12] Modules linked in:
| [   43.756747][   T12] Tainted: [W]=WARN
[   43.756846][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.757002][   T12] Workqueue: netns cleanup_net
[   43.757127][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.757280][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.757719][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   43.757955][   T12] RAX: 00000000ffffffa6 RBX: ff11000009a57540 RCX: 1ff4000000018eed
[   43.758127][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a575fc
[   43.758300][   T12] RBP: ff110000118b9000 R08: 1fe220000134aec1 R09: ff11000001aed1d0
[   43.758550][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   43.758727][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   43.758914][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   43.759125][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.759278][   T12] CR2: 000056489222fd5c CR3: 0000000012b9e004 CR4: 0000000000771ef0
[   43.759528][   T12] PKRU: 55555554
[   43.759617][   T12] Call Trace:
[   43.759703][   T12]  <TASK>
[   43.759766][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   43.759997][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.760143][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   43.760261][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   43.760379][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.760567][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   43.760682][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.760805][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   43.760939][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.761123][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.761245][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.761364][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.761479][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.761668][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.761785][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.761915][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.762035][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.762221][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.762344][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.762473][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.762588][   T12]  kthread (kernel/kthread.c:436)
[   43.762749][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.762907][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.763023][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.763141][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.763360][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.763477][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.763595][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.765900][   T12] ------------[ cut here ]------------
| [   43.766017][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   43.766250][   T12] Modules linked in:
| [   43.766611][   T12] Tainted: [W]=WARN
[   43.766698][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.766848][   T12] Workqueue: netns cleanup_net
[   43.766975][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.767125][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.767551][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   43.767702][   T12] RAX: 00000000ffffffa6 RBX: ff11000006044c80 RCX: 1ff4000000018eed
[   43.767893][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000006044d3c
[   43.768067][   T12] RBP: ff1100000a504000 R08: 1fe2200000c089a9 R09: ff11000001aed1d0
[   43.768241][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   43.768425][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   43.768608][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   43.768817][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.768976][   T12] CR2: 000056489222fd5c CR3: 0000000012b9e004 CR4: 0000000000771ef0
[   43.769150][   T12] PKRU: 55555554
[   43.769236][   T12] Call Trace:
[   43.769328][   T12]  <TASK>
[   43.769390][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   43.769546][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.769695][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   43.769814][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   43.769947][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.770066][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   43.770183][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.770302][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   43.770428][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.770553][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.770672][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.770790][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.770984][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.771103][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.771219][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.771338][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.771461][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.771578][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.771701][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.771822][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.771947][   T12]  kthread (kernel/kthread.c:436)
[   43.772035][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.772181][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.772299][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.772490][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.772638][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.772756][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.772883][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.775402][   T12] ------------[ cut here ]------------
| [   43.775524][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   43.775821][   T12] Modules linked in:
| [   43.776194][   T12] Tainted: [W]=WARN
[   43.776283][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.776508][   T12] Workqueue: netns cleanup_net
[   43.776628][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.776780][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.777210][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   43.777431][   T12] RAX: 00000000ffffffa6 RBX: ff110000060451c0 RCX: 1ff4000000018eed
[   43.777610][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000604527c
[   43.777785][   T12] RBP: ff11000002529000 R08: 1fe2200000c08a51 R09: ff11000001aed1d0
[   43.778039][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   43.778212][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   43.778386][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   43.778734][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.778893][   T12] CR2: 000056489222fd5c CR3: 0000000012b9e004 CR4: 0000000000771ef0
[   43.779139][   T12] PKRU: 55555554
[   43.779228][   T12] Call Trace:
[   43.779316][   T12]  <TASK>
[   43.779378][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   43.779527][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.779742][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   43.779865][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   43.779987][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.780109][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   43.780296][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.780413][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   43.780531][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.780653][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.780848][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.780970][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.781086][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.781204][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.781460][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.781578][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.781697][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.781814][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.781943][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.782064][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.782181][   T12]  kthread (kernel/kthread.c:436)
[   43.782269][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.782492][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.782613][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.782731][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.782956][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.783075][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.783194][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.785694][   T12] ------------[ cut here ]------------
| [   43.785810][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   43.786048][   T12] Modules linked in:
| [   43.786473][   T12] Tainted: [W]=WARN
[   43.786561][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.786711][   T12] Workqueue: netns cleanup_net
[   43.786843][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.787075][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.787560][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   43.787704][   T12] RAX: 00000000ffffffa6 RBX: ff11000006045700 RCX: 1ff4000000018eed
[   43.787886][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000060457bc
[   43.788131][   T12] RBP: ff11000005f39000 R08: 1fe2200000c08af9 R09: ff11000001aed1d0
[   43.788303][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   43.788474][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   43.788719][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   43.788933][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.789157][   T12] CR2: 000056489222fd5c CR3: 0000000012b9e004 CR4: 0000000000771ef0
[   43.789330][   T12] PKRU: 55555554
[   43.789415][   T12] Call Trace:
[   43.789501][   T12]  <TASK>
[   43.789561][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   43.789784][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.789939][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   43.790058][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   43.790244][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.790364][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   43.790480][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.790597][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   43.790787][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.790950][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.791070][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.791188][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.791371][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.791490][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.791605][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.791723][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.791923][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.792039][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.792165][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.792285][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.792400][   T12]  kthread (kernel/kthread.c:436)
[   43.792491][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.792635][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.792753][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.792877][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.793023][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.793140][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.793256][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.812843][   T12] ------------[ cut here ]------------
| [   43.812981][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   43.813219][   T12] Modules linked in:
| [   43.813592][   T12] Tainted: [W]=WARN
[   43.813686][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.813847][   T12] Workqueue: netns cleanup_net
[   43.813984][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.814141][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.814577][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   43.814731][   T12] RAX: 00000000ffffffa6 RBX: ff110000060458c0 RCX: 1ff4000000018eaf
[   43.814929][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000604597c
[   43.815111][   T12] RBP: ff110000156e1000 R08: 1fe2200000c08b31 R09: ff11000001aed1d0
[   43.815295][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   43.815476][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a5bc000
[   43.815659][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   43.815884][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.816038][   T12] CR2: 000056489222fd5c CR3: 0000000012b9e004 CR4: 0000000000771ef0
[   43.816227][   T12] PKRU: 55555554
[   43.816319][   T12] Call Trace:
[   43.816410][   T12]  <TASK>
[   43.816475][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   43.816597][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   43.816698][   T12]  netif_close_many (net/core/dev.c:1804)
[   43.816822][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.816956][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.817078][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.817199][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   43.817323][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   43.817478][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   43.817637][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.817761][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.817925][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.818047][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.818170][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   43.818323][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   43.818448][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   43.818574][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   43.818698][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   43.818823][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   43.818957][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   43.819085][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.819207][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.819332][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.819457][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.819580][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.819704][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.819827][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.819962][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.820087][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.820211][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.820339][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.820468][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.820590][   T12]  kthread (kernel/kthread.c:436)
[   43.820687][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.820850][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.820976][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.821099][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.821254][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.821376][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.821504][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.824902][   T12] ------------[ cut here ]------------
| [   43.825047][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   43.825288][   T12] Modules linked in:
| [   43.825670][   T12] Tainted: [W]=WARN
[   43.825764][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.825936][   T12] Workqueue: netns cleanup_net
[   43.826066][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.826226][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.826664][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   43.826819][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c40e580 RCX: 1ff4000000018eaf
[   43.827014][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c40e63c
[   43.827197][   T12] RBP: ff1100000a5bc000 R08: 1fe2200001881cc9 R09: ff11000001aed1d0
[   43.827381][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   43.827564][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   43.827749][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   43.827976][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.828130][   T12] CR2: 00007fe9cfa817d0 CR3: 000000003174d003 CR4: 0000000000771ef0
[   43.828313][   T12] PKRU: 55555554
[   43.828405][   T12] Call Trace:
[   43.828497][   T12]  <TASK>
[   43.828562][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   43.828689][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   43.828815][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   43.828922][   T12]  netif_close_many (net/core/dev.c:1804)
[   43.829047][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.829168][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.829292][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.829417][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   43.829540][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   43.829696][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   43.829861][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.829989][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.830148][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.830276][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.830398][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   43.830554][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   43.830682][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   43.830806][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   43.830944][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   43.831069][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   43.831194][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   43.831321][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.831443][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.831569][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.831691][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.831814][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.831952][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.832079][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.832203][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.832331][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.832452][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.832582][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.832710][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.832837][   T12]  kthread (kernel/kthread.c:436)
[   43.832935][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.833091][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.833215][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.833339][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.833496][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.833620][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.833744][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.836695][   T12] ------------[ cut here ]------------
| [   43.836823][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   43.837079][   T12] Modules linked in:
| [   43.837443][   T12] Tainted: [W]=WARN
[   43.837533][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.837683][   T12] Workqueue: netns cleanup_net
[   43.837809][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.837976][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.838403][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   43.838554][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ba8d000 RCX: 1ff4000000018ed5
[   43.838733][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba8d0bc
[   43.838919][   T12] RBP: ff110000156e1000 R08: 1fe2200001751a19 R09: ff11000001aed1d0
[   43.839100][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   43.839277][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   43.839460][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   43.839669][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.839821][   T12] CR2: 00007fe9cfa817d0 CR3: 000000003174d003 CR4: 0000000000771ef0
[   43.840011][   T12] PKRU: 55555554
[   43.840101][   T12] Call Trace:
[   43.840192][   T12]  <TASK>
[   43.840256][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   43.840413][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.840558][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.840681][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.840800][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   43.840965][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   43.841084][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   43.841201][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   43.841324][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   43.841445][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   43.841566][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.841687][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.841811][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.841937][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.842059][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.842179][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.842298][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.842424][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.842553][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.842672][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.842804][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.842936][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.843057][   T12]  kthread (kernel/kthread.c:436)
[   43.843153][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.843302][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.843424][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.843550][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.843697][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.843820][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.843948][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.846456][   T12] ------------[ cut here ]------------
| [   43.846580][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   43.846815][   T12] Modules linked in:
| [   43.847995][   T12] Tainted: [W]=WARN
[   43.848086][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.848238][   T12] Workqueue: netns cleanup_net
[   43.848366][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.848525][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.849012][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   43.849209][   T12] RAX: 00000000ffffffa6 RBX: ff110000135e1540 RCX: 1ff4000000018ed5
[   43.849389][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000135e15fc
[   43.849566][   T12] RBP: ff1100000a5bc000 R08: 1fe22000026bc2c1 R09: ff11000001aed1d0
[   43.849748][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   43.849982][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   43.850160][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   43.850370][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.850524][   T12] CR2: 00007fe9cfa817d0 CR3: 000000003174d003 CR4: 0000000000771ef0
[   43.850705][   T12] PKRU: 55555554
[   43.850796][   T12] Call Trace:
[   43.850938][   T12]  <TASK>
[   43.851002][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   43.851153][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.851303][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.851426][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.851553][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   43.851710][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   43.851830][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   43.852001][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   43.852126][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   43.852248][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   43.852369][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.852491][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.852611][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.852730][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.852904][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.853027][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.853147][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.853269][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.853391][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.853510][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.853632][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.853755][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.853925][   T12]  kthread (kernel/kthread.c:436)
[   43.854015][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.854167][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.854289][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.854410][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.854561][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.854686][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.854809][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.862985][   T12] ------------[ cut here ]------------
| [   43.863167][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   43.863456][   T12] Modules linked in:
| [   43.863937][   T12] Tainted: [W]=WARN
[   43.864076][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.864290][   T12] Workqueue: netns cleanup_net
[   43.864463][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.864665][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.865160][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   43.865360][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b115e00 RCX: 1ff4000000018ed5
[   43.865586][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b115ebc
[   43.865806][   T12] RBP: ff11000005301000 R08: 1fe2200001622bd9 R09: ff11000001aed1d0
[   43.866047][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   43.866270][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   43.866499][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   43.866751][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.866967][   T12] CR2: 0000563127ae1688 CR3: 0000000015bee003 CR4: 0000000000771ef0
[   43.867193][   T12] PKRU: 55555554
[   43.867327][   T12] Call Trace:
[   43.867461][   T12]  <TASK>
[   43.867570][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   43.867776][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.868098][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.868377][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.868658][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   43.868968][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   43.869232][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   43.869495][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   43.869756][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   43.870043][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   43.870304][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.870548][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.870718][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.870904][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.871069][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.871243][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.871408][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.871608][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.871779][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.871961][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.872138][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.872309][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.872479][   T12]  kthread (kernel/kthread.c:436)
[   43.872618][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.872815][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.873002][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.873174][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.873368][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.873534][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.873706][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.908583][  T396] ------------[ cut here ]------------
| [   43.908747][  T396] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/396
| [   43.908991][  T396] Modules linked in:
| [   43.909363][  T396] Tainted: [W]=WARN
[   43.909463][  T396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.909623][  T396] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.909791][  T396] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.910260][  T396] RSP: 0018:ffa0000001077a80 EFLAGS: 00010286
[   43.910424][  T396] RAX: 00000000ffffffa6 RBX: ff110000135e0200 RCX: 1ff400000020ef16
[   43.910618][  T396] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000135e02bc
[   43.910809][  T396] RBP: ff110000176a9000 R08: 1fe22000026bc059 R09: ff11000016f40b80
[   43.911010][  T396] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   43.911200][  T396] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000176a9000
[   43.911393][  T396] FS:  00007f00f5ad4840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   43.911621][  T396] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.911783][  T396] CR2: 00007f00f5ce0690 CR3: 000000000daec001 CR4: 0000000000771ef0
[   43.911992][  T396] PKRU: 55555554
[   43.912089][  T396] Call Trace:
[   43.912186][  T396]  <TASK>
[   43.912254][  T396]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   43.912385][  T396]  ? notifier_call_chain (kernel/notifier.c:85)
[   43.912515][  T396]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   43.912616][  T396]  register_netdevice (net/core/dev.c:11488)
[   43.912748][  T396]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   43.912921][  T396]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   43.913049][  T396]  register_netdev (net/core/dev.c:11552)
[   43.913178][  T396]  loopback_net_init (drivers/net/loopback.c:218)
[   43.913309][  T396]  ops_init (net/core/net_namespace.c:137)
[   43.913408][  T396]  setup_net (net/core/net_namespace.c:446)
[   43.913505][  T396]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   43.913635][  T396]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   43.913766][  T396]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   43.913907][  T396]  copy_net_ns (net/core/net_namespace.c:579)
[   43.914036][  T396]  create_new_namespaces (kernel/nsproxy.c:132)
[   43.914167][  T396]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   43.914295][  T396]  ksys_unshare (kernel/fork.c:3243)
[   43.914427][  T396]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   43.914560][  T396]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   43.914688][  T396]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   43.914820][  T396]  ? __ia32_sys_open (fs/open.c:1374)
[   43.914967][  T396]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   43.915094][  T396]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   43.915221][  T396]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   43.915349][  T396]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   43.915479][  T396]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   43.915607][  T396]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   43.915768][  T396] RIP: 0033:0x7f00f5d96bcb
[   43.915914][  T396] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   43.916377][  T396] RSP: 002b:00007ffe9b9b7198 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   43.916570][  T396] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f00f5d96bcb
[   43.916763][  T396] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   43.916967][  T396] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   43.917162][  T396] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe9b9b93c0
[   43.917356][  T396] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9b9b9875
| [   43.926479][   T12] ------------[ cut here ]------------
| [   43.926677][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   43.927017][   T12] Modules linked in:
| [   43.927468][   T12] Tainted: [W]=WARN
[   43.927602][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.927794][   T12] Workqueue: netns cleanup_net
[   43.927988][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.928192][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.928647][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   43.928853][   T12] RAX: 00000000ffffffa6 RBX: ff11000001f63c40 RCX: 1ff4000000018eed
[   43.929088][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000001f63cfc
[   43.929306][   T12] RBP: ff11000009661000 R08: 1fe22000003ec7a1 R09: ff11000001aed1d0
[   43.929524][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   43.929740][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   43.929982][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   43.930232][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.930424][   T12] CR2: 0000563127ae1688 CR3: 000000003174d006 CR4: 0000000000771ef0
[   43.930643][   T12] PKRU: 55555554
[   43.930778][   T12] Call Trace:
[   43.930946][   T12]  <TASK>
[   43.931055][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   43.931267][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.931460][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   43.931626][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   43.931793][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.931977][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   43.932144][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.932313][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   43.932480][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.932643][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.932811][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.932996][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.933161][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.933326][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.933495][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.933661][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.933845][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.934019][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.934187][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.934353][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.934519][   T12]  kthread (kernel/kthread.c:436)
[   43.934655][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.934860][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.935033][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.935202][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.935392][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.935558][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.935720][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.938438][   T12] ------------[ cut here ]------------
| [   43.938605][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   43.938950][   T12] Modules linked in:
| [   43.939403][   T12] Tainted: [W]=WARN
[   43.939537][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.939727][   T12] Workqueue: netns cleanup_net
[   43.939918][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.940117][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.940582][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   43.940776][   T12] RAX: 00000000ffffffa6 RBX: ff11000001f63540 RCX: 1ff4000000018eed
[   43.941015][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000001f635fc
[   43.941233][   T12] RBP: ff1100000a4f4000 R08: 1fe22000003ec6c1 R09: ff11000001aed1d0
[   43.941453][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   43.941669][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   43.941907][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   43.942158][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.942354][   T12] CR2: 0000563127ae1688 CR3: 000000003174d006 CR4: 0000000000771ef0
[   43.942577][   T12] PKRU: 55555554
[   43.942709][   T12] Call Trace:
[   43.942854][   T12]  <TASK>
[   43.942968][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   43.943168][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.943359][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   43.943525][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   43.943698][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.943881][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   43.944047][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.944214][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   43.944381][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.944546][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.944712][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.944896][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.945064][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.945231][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.945394][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.945564][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.945733][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.945917][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.946086][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.946260][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.946423][   T12]  kthread (kernel/kthread.c:436)
[   43.946557][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.946748][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.946931][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.947097][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.947291][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.947460][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.947624][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.950309][   T12] ------------[ cut here ]------------
| [   43.950472][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   43.950751][   T12] Modules linked in:
| [   43.951221][   T12] Tainted: [W]=WARN
[   43.951354][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.951557][   T12] Workqueue: netns cleanup_net
[   43.951726][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.951947][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.952404][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   43.952603][   T12] RAX: 00000000ffffffa6 RBX: ff11000011bf9540 RCX: 1ff4000000018eed
[   43.952820][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000011bf95fc
[   43.953057][   T12] RBP: ff11000008631000 R08: 1fe220000237f2c1 R09: ff11000001aed1d0
[   43.953275][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   43.953498][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   43.953719][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   43.953987][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.954177][   T12] CR2: 0000563127ae1688 CR3: 000000003174d006 CR4: 0000000000771ef0
[   43.954396][   T12] PKRU: 55555554
[   43.954534][   T12] Call Trace:
[   43.954667][   T12]  <TASK>
[   43.954774][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   43.954990][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.955180][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   43.955345][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   43.955510][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.955671][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   43.955852][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.956088][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   43.956257][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.956422][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.956589][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.956754][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.956936][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.957101][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.957271][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.957437][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.957604][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.957766][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.957953][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.958120][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.958283][   T12]  kthread (kernel/kthread.c:436)
[   43.958418][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.958615][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.958781][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.958968][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.959161][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.959327][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.959494][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.961963][   T12] ------------[ cut here ]------------
| [   43.962126][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   43.962398][   T12] Modules linked in:
| [   43.962867][   T12] Tainted: [W]=WARN
[   43.963009][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.963200][   T12] Workqueue: netns cleanup_net
[   43.963370][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.963571][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.964046][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   43.964239][   T12] RAX: 00000000ffffffa6 RBX: ff1100000f4fe740 RCX: 1ff4000000018eed
[   43.964460][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f4fe7fc
[   43.964681][   T12] RBP: ff11000009381000 R08: 1fe2200001e9fd01 R09: ff11000001aed1d0
[   43.964918][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   43.965138][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   43.965357][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   43.965608][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.965798][   T12] CR2: 0000563127ae1688 CR3: 000000003174d006 CR4: 0000000000771ef0
[   43.966038][   T12] PKRU: 55555554
[   43.966171][   T12] Call Trace:
[   43.966306][   T12]  <TASK>
[   43.966413][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   43.966618][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.966806][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   43.966991][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   43.967155][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.967318][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   43.967481][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.967645][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   43.967809][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.967993][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.968164][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.968325][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.968488][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.968652][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.968814][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.969001][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.969171][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.969340][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.969507][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.969673][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.969848][   T12]  kthread (kernel/kthread.c:436)
[   43.969989][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.970180][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.970344][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.970513][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.970702][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.970887][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.971052][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.973453][   T12] ------------[ cut here ]------------
| [   43.973611][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   43.973906][   T12] Modules linked in:
| [   43.974357][   T12] Tainted: [W]=WARN
[   43.974494][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.974684][   T12] Workqueue: netns cleanup_net
[   43.974866][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.975070][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.975532][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   43.975725][   T12] RAX: 00000000ffffffa6 RBX: ff11000011bf8580 RCX: 1ff4000000018eed
[   43.975963][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000011bf863c
[   43.976182][   T12] RBP: ff110000050d1000 R08: 1fe220000237f0c9 R09: ff11000001aed1d0
[   43.976403][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   43.976623][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   43.976857][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   43.977116][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.977310][   T12] CR2: 0000563127ae1688 CR3: 000000003174d006 CR4: 0000000000771ef0
[   43.977532][   T12] PKRU: 55555554
[   43.977664][   T12] Call Trace:
[   43.977798][   T12]  <TASK>
[   43.977923][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   43.978123][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   43.978315][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   43.978483][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   43.978652][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   43.978816][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   43.979005][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   43.979171][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   43.979336][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   43.979499][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   43.979666][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   43.979849][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   43.980015][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   43.980179][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   43.980342][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   43.980509][   T12]  process_one_work (kernel/workqueue.c:3314)
[   43.980677][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   43.980854][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   43.981032][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   43.981203][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   43.981366][   T12]  kthread (kernel/kthread.c:436)
[   43.981501][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   43.981704][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.981889][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   43.982055][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   43.982245][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   43.982411][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   43.982576][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   43.987763][  T396] ------------[ cut here ]------------
| [   43.987922][  T396] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/396
| [   43.988149][  T396] Modules linked in:
| [   43.988513][  T396] Tainted: [W]=WARN
[   43.988613][  T396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.988780][  T396] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   43.988959][  T396] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   43.989417][  T396] RSP: 0018:ffa0000001077918 EFLAGS: 00010286
[   43.989583][  T396] RAX: 00000000ffffffa6 RBX: ff11000009a54040 RCX: 1ff400000020eee9
[   43.989777][  T396] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a540fc
[   43.989978][  T396] RBP: ff110000058f1000 R08: 1fe220000134a821 R09: ff11000016f40b80
[   43.990173][  T396] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   43.990365][  T396] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000058f1000
[   43.990566][  T396] FS:  00007f00f5ad4840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   43.990793][  T396] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.990968][  T396] CR2: 00007f00f5ce0690 CR3: 000000000daec001 CR4: 0000000000771ef0
[   43.991165][  T396] PKRU: 55555554
[   43.991264][  T396] Call Trace:
[   43.991363][  T396]  <TASK>
[   43.991432][  T396]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   43.991563][  T396]  ? notifier_call_chain (kernel/notifier.c:85)
[   43.991692][  T396]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   43.991792][  T396]  register_netdevice (net/core/dev.c:11488)
[   43.991937][  T396]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   43.992098][  T396]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   43.992230][  T396]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   43.992362][  T396]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   43.992495][  T396]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   43.992627][  T396]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   43.992758][  T396]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   43.992903][  T396]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   43.993034][  T396]  ops_init (net/core/net_namespace.c:137)
[   43.993133][  T396]  setup_net (net/core/net_namespace.c:446)
[   43.993232][  T396]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   43.993365][  T396]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   43.993499][  T396]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   43.993632][  T396]  copy_net_ns (net/core/net_namespace.c:579)
[   43.993763][  T396]  create_new_namespaces (kernel/nsproxy.c:132)
[   43.993908][  T396]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   43.994039][  T396]  ksys_unshare (kernel/fork.c:3243)
[   43.994173][  T396]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   43.994303][  T396]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   43.994433][  T396]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   43.994565][  T396]  ? __ia32_sys_open (fs/open.c:1374)
[   43.994698][  T396]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   43.994829][  T396]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   43.994988][  T396]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   43.995120][  T396]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   43.995252][  T396]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   43.995383][  T396]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   43.995546][  T396] RIP: 0033:0x7f00f5d96bcb
[   43.995683][  T396] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   43.996160][  T396] RSP: 002b:00007ffe9b9b7198 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   43.996357][  T396] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f00f5d96bcb
[   43.996552][  T396] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   43.996745][  T396] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   43.996947][  T396] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe9b9b93c0
[   43.997144][  T396] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9b9b9875
| [   44.001045][  T396] ------------[ cut here ]------------
| [   44.001187][  T396] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/396
| [   44.001416][  T396] Modules linked in:
| [   44.001786][  T396] Tainted: [W]=WARN
[   44.001897][  T396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.002066][  T396] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.002239][  T396] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.002707][  T396] RSP: 0018:ffa00000010778f8 EFLAGS: 00010286
[   44.002884][  T396] RAX: 00000000ffffffa6 RBX: ff11000009a55380 RCX: 1ff400000020eee5
[   44.003081][  T396] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a5543c
[   44.003278][  T396] RBP: ff11000007909000 R08: 1fe220000134aa89 R09: ff11000016f40b80
[   44.003473][  T396] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   44.003669][  T396] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007909000
[   44.003878][  T396] FS:  00007f00f5ad4840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   44.004110][  T396] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.004273][  T396] CR2: 00007f00f5ce0690 CR3: 000000000daec001 CR4: 0000000000771ef0
[   44.004471][  T396] PKRU: 55555554
[   44.004570][  T396] Call Trace:
[   44.004670][  T396]  <TASK>
[   44.004738][  T396]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.004881][  T396]  ? notifier_call_chain (kernel/notifier.c:85)
[   44.005014][  T396]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.005115][  T396]  register_netdevice (net/core/dev.c:11488)
[   44.005248][  T396]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   44.005410][  T396]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   44.005548][  T396]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   44.005679][  T396]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   44.005811][  T396]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   44.005952][  T396]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   44.006083][  T396]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   44.006215][  T396]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   44.006348][  T396]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   44.006482][  T396]  vti_init_net (net/ipv4/ip_vti.c:517)
[   44.006616][  T396]  ops_init (net/core/net_namespace.c:137)
[   44.006717][  T396]  setup_net (net/core/net_namespace.c:446)
[   44.006816][  T396]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   44.006956][  T396]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   44.007086][  T396]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   44.007219][  T396]  copy_net_ns (net/core/net_namespace.c:579)
[   44.007352][  T396]  create_new_namespaces (kernel/nsproxy.c:132)
[   44.007488][  T396]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   44.007621][  T396]  ksys_unshare (kernel/fork.c:3243)
[   44.007753][  T396]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   44.007896][  T396]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   44.008028][  T396]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   44.008163][  T396]  ? __ia32_sys_open (fs/open.c:1374)
[   44.008296][  T396]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   44.008427][  T396]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   44.008561][  T396]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.008693][  T396]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.008825][  T396]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.008968][  T396]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.009131][  T396] RIP: 0033:0x7f00f5d96bcb
[   44.009269][  T396] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   44.009736][  T396] RSP: 002b:00007ffe9b9b7198 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   44.009944][  T396] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f00f5d96bcb
[   44.010142][  T396] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   44.010341][  T396] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   44.010535][  T396] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe9b9b93c0
[   44.010731][  T396] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9b9b9875
| [   44.014902][  T396] ------------[ cut here ]------------
| [   44.015040][  T396] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/396
| [   44.015264][  T396] Modules linked in:
| [   44.015632][  T396] Tainted: [W]=WARN
[   44.015731][  T396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.015905][  T396] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.016075][  T396] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.016542][  T396] RSP: 0018:ffa0000001077a78 EFLAGS: 00010286
[   44.016706][  T396] RAX: 00000000ffffffa6 RBX: ff11000009a55000 RCX: 1ff400000020ef15
[   44.016912][  T396] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a550bc
[   44.017105][  T396] RBP: ff11000008629000 R08: 1fe220000134aa19 R09: ff11000016f40b80
[   44.017300][  T396] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   44.017498][  T396] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008629000
[   44.017692][  T396] FS:  00007f00f5ad4840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   44.017930][  T396] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.018096][  T396] CR2: 00007f00f5ce0690 CR3: 000000000daec001 CR4: 0000000000771ef0
[   44.018292][  T396] PKRU: 55555554
[   44.018388][  T396] Call Trace:
[   44.018488][  T396]  <TASK>
[   44.018555][  T396]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.018687][  T396]  ? notifier_call_chain (kernel/notifier.c:85)
[   44.018820][  T396]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.018934][  T396]  register_netdevice (net/core/dev.c:11488)
[   44.019067][  T396]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   44.019226][  T396]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.019361][  T396]  register_netdev (net/core/dev.c:11552)
[   44.019496][  T396]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   44.019630][  T396]  ops_init (net/core/net_namespace.c:137)
[   44.019730][  T396]  setup_net (net/core/net_namespace.c:446)
[   44.019829][  T396]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   44.019971][  T396]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   44.020102][  T396]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   44.020235][  T396]  copy_net_ns (net/core/net_namespace.c:579)
[   44.020367][  T396]  create_new_namespaces (kernel/nsproxy.c:132)
[   44.020502][  T396]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   44.020634][  T396]  ksys_unshare (kernel/fork.c:3243)
[   44.020770][  T396]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   44.020912][  T396]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   44.021042][  T396]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   44.021175][  T396]  ? __ia32_sys_open (fs/open.c:1374)
[   44.021307][  T396]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   44.021436][  T396]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   44.021566][  T396]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.021695][  T396]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.021829][  T396]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.021968][  T396]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.022130][  T396] RIP: 0033:0x7f00f5d96bcb
[   44.022264][  T396] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   44.022732][  T396] RSP: 002b:00007ffe9b9b7198 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   44.022939][  T396] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f00f5d96bcb
[   44.023134][  T396] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   44.023329][  T396] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   44.023527][  T396] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe9b9b93c0
[   44.023721][  T396] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9b9b9875
| [   44.031714][  T396] ------------[ cut here ]------------
| [   44.032361][  T396] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/396
| [   44.032591][  T396] Modules linked in:
| [   44.033024][  T396] Tainted: [W]=WARN
[   44.033126][  T396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.033291][  T396] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.033465][  T396] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.033990][  T396] RSP: 0018:ffa0000001077a68 EFLAGS: 00010286
[   44.034154][  T396] RAX: 00000000ffffffa6 RBX: ff1100000b2e7540 RCX: 1ff400000020ef13
[   44.034348][  T396] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b2e75fc
[   44.034541][  T396] RBP: ff11000008d31000 R08: 1fe220000165cec1 R09: ff11000016f40b80
[   44.034737][  T396] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   44.034996][  T396] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008d31000
[   44.035193][  T396] FS:  00007f00f5ad4840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   44.035419][  T396] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.035583][  T396] CR2: 00007f00f5ce0690 CR3: 000000000daec001 CR4: 0000000000771ef0
[   44.035780][  T396] PKRU: 55555554
[   44.035933][  T396] Call Trace:
[   44.036029][  T396]  <TASK>
[   44.036097][  T396]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.036228][  T396]  ? notifier_call_chain (kernel/notifier.c:85)
[   44.036359][  T396]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.036460][  T396]  register_netdevice (net/core/dev.c:11488)
[   44.036591][  T396]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   44.036758][  T396]  register_netdev (net/core/dev.c:11552)
[   44.036955][  T396]  sit_init_net (net/ipv6/sit.c:1860)
[   44.037089][  T396]  ops_init (net/core/net_namespace.c:137)
[   44.037188][  T396]  setup_net (net/core/net_namespace.c:446)
[   44.037287][  T396]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   44.037417][  T396]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   44.037548][  T396]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   44.037684][  T396]  copy_net_ns (net/core/net_namespace.c:579)
[   44.037814][  T396]  create_new_namespaces (kernel/nsproxy.c:132)
[   44.038008][  T396]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   44.038138][  T396]  ksys_unshare (kernel/fork.c:3243)
[   44.038267][  T396]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   44.038396][  T396]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   44.038530][  T396]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   44.038663][  T396]  ? __ia32_sys_open (fs/open.c:1374)
[   44.038797][  T396]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   44.038988][  T396]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   44.039119][  T396]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.039252][  T396]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.039385][  T396]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.039517][  T396]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.039679][  T396] RIP: 0033:0x7f00f5d96bcb
[   44.039817][  T396] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   44.040344][  T396] RSP: 002b:00007ffe9b9b7198 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   44.040541][  T396] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f00f5d96bcb
[   44.040735][  T396] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   44.040993][  T396] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   44.041185][  T396] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe9b9b93c0
[   44.041381][  T396] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9b9b9875
| [   44.047394][  T396] ------------[ cut here ]------------
| [   44.047530][  T396] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/396
| [   44.047756][  T396] Modules linked in:
| [   44.048640][  T396] Tainted: [W]=WARN
[   44.048738][  T396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.048966][  T396] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.049135][  T396] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.049599][  T396] RSP: 0018:ffa0000001077a78 EFLAGS: 00010286
[   44.049764][  T396] RAX: 00000000ffffffa6 RBX: ff110000139ea900 RCX: 1ff400000020ef15
[   44.050022][  T396] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000139ea9bc
[   44.050216][  T396] RBP: ff110000134f9000 R08: 1fe220000273d539 R09: ff11000016f40b80
[   44.050410][  T396] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   44.050658][  T396] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000134f9000
[   44.050917][  T396] FS:  00007f00f5ad4840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   44.051145][  T396] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.051307][  T396] CR2: 00007f00f5ce0690 CR3: 000000000daec001 CR4: 0000000000771ef0
[   44.051504][  T396] PKRU: 55555554
[   44.051600][  T396] Call Trace:
[   44.051696][  T396]  <TASK>
[   44.051763][  T396]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.051960][  T396]  ? notifier_call_chain (kernel/notifier.c:85)
[   44.052091][  T396]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.052190][  T396]  register_netdevice (net/core/dev.c:11488)
[   44.052320][  T396]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   44.052480][  T396]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.052611][  T396]  register_netdev (net/core/dev.c:11552)
[   44.052742][  T396]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   44.052935][  T396]  ops_init (net/core/net_namespace.c:137)
[   44.053035][  T396]  setup_net (net/core/net_namespace.c:446)
[   44.053134][  T396]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   44.053263][  T396]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   44.053393][  T396]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   44.053529][  T396]  copy_net_ns (net/core/net_namespace.c:579)
[   44.053660][  T396]  create_new_namespaces (kernel/nsproxy.c:132)
[   44.053795][  T396]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   44.053992][  T396]  ksys_unshare (kernel/fork.c:3243)
[   44.054125][  T396]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   44.054256][  T396]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   44.054384][  T396]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   44.054516][  T396]  ? __ia32_sys_open (fs/open.c:1374)
[   44.054647][  T396]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   44.054775][  T396]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   44.054968][  T396]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.055096][  T396]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.055224][  T396]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.055353][  T396]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.055512][  T396] RIP: 0033:0x7f00f5d96bcb
[   44.055647][  T396] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   44.056170][  T396] RSP: 002b:00007ffe9b9b7198 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   44.056366][  T396] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f00f5d96bcb
[   44.056561][  T396] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   44.056755][  T396] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   44.057008][  T396] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe9b9b93c0
[   44.057201][  T396] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9b9b9875
| [   44.059279][   T12] ------------[ cut here ]------------
| [   44.059440][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   44.059717][   T12] Modules linked in:
| [   44.060209][   T12] Tainted: [W]=WARN
[   44.060344][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.060537][   T12] Workqueue: netns cleanup_net
[   44.060708][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.061061][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.061593][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   44.061893][   T12] RAX: 00000000ffffffa6 RBX: ff11000001f62ac0 RCX: 1ff4000000018ed5
[   44.062159][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000001f62b7c
[   44.062448][   T12] RBP: ff1100000a50c000 R08: 1fe22000003ec571 R09: ff11000001aed1d0
[   44.062670][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   44.062918][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   44.063150][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   44.063401][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.063598][   T12] CR2: 0000563127ae1688 CR3: 000000003174d006 CR4: 0000000000771ef0
[   44.063821][   T12] PKRU: 55555554
[   44.063979][   T12] Call Trace:
[   44.064119][   T12]  <TASK>
[   44.064229][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   44.064429][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   44.064625][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   44.064798][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   44.064986][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   44.065154][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   44.065320][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   44.065489][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   44.065659][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   44.065823][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.066018][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   44.066187][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   44.066349][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   44.066521][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   44.066686][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.066869][   T12]  process_one_work (kernel/workqueue.c:3314)
[   44.067046][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   44.067217][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.067388][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   44.067559][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   44.067722][   T12]  kthread (kernel/kthread.c:436)
[   44.067871][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   44.068073][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   44.068241][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   44.068413][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   44.068607][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   44.068776][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   44.068961][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   44.114480][  T397] ------------[ cut here ]------------
| [   44.114694][  T397] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/397
| [   44.115052][  T397] Modules linked in:
| [   44.115660][  T397] Tainted: [W]=WARN
[   44.115817][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.116089][  T397] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.116355][  T397] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.117092][  T397] RSP: 0018:ffa0000001087a80 EFLAGS: 00010286
[   44.117351][  T397] RAX: 00000000ffffffa6 RBX: ff1100000c66be00 RCX: 1ff4000000210f16
[   44.117653][  T397] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c66bebc
[   44.117974][  T397] RBP: ff110000090cc000 R08: 1fe22000018cd7d9 R09: ff110000135aae80
[   44.118279][  T397] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   44.118582][  T397] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000090cc000
[   44.118900][  T397] FS:  00007fe03b2b8840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   44.119259][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.119521][  T397] CR2: 00007fe03b4c27d0 CR3: 000000000cbcf004 CR4: 0000000000771ef0
[   44.119827][  T397] PKRU: 55555554
[   44.119990][  T397] Call Trace:
[   44.120144][  T397]  <TASK>
[   44.120250][  T397]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.120456][  T397]  ? notifier_call_chain (kernel/notifier.c:85)
[   44.120660][  T397]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.120820][  T397]  register_netdevice (net/core/dev.c:11488)
[   44.121037][  T397]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   44.121290][  T397]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   44.121498][  T397]  register_netdev (net/core/dev.c:11552)
[   44.121699][  T397]  loopback_net_init (drivers/net/loopback.c:218)
[   44.121913][  T397]  ops_init (net/core/net_namespace.c:137)
[   44.122070][  T397]  setup_net (net/core/net_namespace.c:446)
[   44.122225][  T397]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   44.122431][  T397]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   44.122635][  T397]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   44.122851][  T397]  copy_net_ns (net/core/net_namespace.c:579)
[   44.123062][  T397]  create_new_namespaces (kernel/nsproxy.c:132)
[   44.123272][  T397]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   44.123477][  T397]  ksys_unshare (kernel/fork.c:3243)
[   44.123685][  T397]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   44.123902][  T397]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   44.124105][  T397]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   44.124310][  T397]  ? __ia32_sys_open (fs/open.c:1374)
[   44.124518][  T397]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   44.124721][  T397]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   44.124937][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.125144][  T397]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.125352][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.125558][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.125812][  T397] RIP: 0033:0x7fe03b57abcb
[   44.126037][  T397] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   44.126765][  T397] RSP: 002b:00007ffd52c99aa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   44.127084][  T397] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe03b57abcb
[   44.127386][  T397] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   44.127689][  T397] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   44.128005][  T397] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd52c9bcd0
[   44.128314][  T397] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd52c9c875
| [   44.135263][  T397] ------------[ cut here ]------------
| [   44.135480][  T397] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/397
| [   44.135828][  T397] Modules linked in:
| [   44.137069][  T397] Tainted: [W]=WARN
[   44.137221][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.137477][  T397] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.137742][  T397] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.138478][  T397] RSP: 0018:ffa0000001087918 EFLAGS: 00010286
[   44.138735][  T397] RAX: 00000000ffffffa6 RBX: ff1100000cbb8ac0 RCX: 1ff4000000210ee9
[   44.139053][  T397] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cbb8b7c
[   44.139355][  T397] RBP: ff11000008649000 R08: 1fe2200001977171 R09: ff110000135aae80
[   44.139659][  T397] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   44.139975][  T397] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008649000
[   44.140283][  T397] FS:  00007fe03b2b8840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   44.140640][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.140905][  T397] CR2: 00007fe03b4c27d0 CR3: 000000000cbcf004 CR4: 0000000000771ef0
[   44.141210][  T397] PKRU: 55555554
[   44.141359][  T397] Call Trace:
[   44.141512][  T397]  <TASK>
[   44.141619][  T397]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.141825][  T397]  ? notifier_call_chain (kernel/notifier.c:85)
[   44.142041][  T397]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.142195][  T397]  register_netdevice (net/core/dev.c:11488)
[   44.142402][  T397]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   44.142653][  T397]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   44.142865][  T397]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   44.143075][  T397]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   44.143280][  T397]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   44.143485][  T397]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   44.143687][  T397]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   44.143907][  T397]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   44.144112][  T397]  ops_init (net/core/net_namespace.c:137)
[   44.144266][  T397]  setup_net (net/core/net_namespace.c:446)
[   44.144419][  T397]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   44.144624][  T397]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   44.144827][  T397]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   44.145049][  T397]  copy_net_ns (net/core/net_namespace.c:579)
[   44.145253][  T397]  create_new_namespaces (kernel/nsproxy.c:132)
[   44.145459][  T397]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   44.145664][  T397]  ksys_unshare (kernel/fork.c:3243)
[   44.145874][  T397]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   44.146086][  T397]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   44.146288][  T397]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   44.146491][  T397]  ? __ia32_sys_open (fs/open.c:1374)
[   44.146697][  T397]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   44.146906][  T397]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   44.147107][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.147307][  T397]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.147514][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.147719][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.147982][  T397] RIP: 0033:0x7fe03b57abcb
[   44.148194][  T397] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   44.148929][  T397] RSP: 002b:00007ffd52c99aa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   44.149236][  T397] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe03b57abcb
[   44.149537][  T397] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   44.149845][  T397] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   44.150150][  T397] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd52c9bcd0
[   44.150456][  T397] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd52c9c875
| [   44.158380][  T397] ------------[ cut here ]------------
| [   44.158599][  T397] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/397
| [   44.158966][  T397] Modules linked in:
| [   44.159533][  T397] Tainted: [W]=WARN
[   44.159698][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.159970][  T397] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.160239][  T397] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.160980][  T397] RSP: 0018:ffa00000010878f8 EFLAGS: 00010286
[   44.161241][  T397] RAX: 00000000ffffffa6 RBX: ff11000009518900 RCX: 1ff4000000210ee5
[   44.161547][  T397] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000095189bc
[   44.161860][  T397] RBP: ff1100000e42c000 R08: 1fe22000012a3139 R09: ff110000135aae80
[   44.162170][  T397] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   44.162478][  T397] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e42c000
[   44.162789][  T397] FS:  00007fe03b2b8840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   44.163160][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.163417][  T397] CR2: 00007fe03b4c27d0 CR3: 000000000cbcf004 CR4: 0000000000771ef0
[   44.163725][  T397] PKRU: 55555554
[   44.163895][  T397] Call Trace:
[   44.164051][  T397]  <TASK>
[   44.164159][  T397]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.164363][  T397]  ? notifier_call_chain (kernel/notifier.c:85)
[   44.164570][  T397]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.164726][  T397]  register_netdevice (net/core/dev.c:11488)
[   44.165038][  T397]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   44.165294][  T397]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   44.165506][  T397]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   44.165711][  T397]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   44.166017][  T397]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   44.166225][  T397]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   44.166432][  T397]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   44.166639][  T397]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   44.166940][  T397]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   44.167150][  T397]  vti_init_net (net/ipv4/ip_vti.c:517)
[   44.167358][  T397]  ops_init (net/core/net_namespace.c:137)
[   44.167518][  T397]  setup_net (net/core/net_namespace.c:446)
[   44.167674][  T397]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   44.167974][  T397]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   44.168180][  T397]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   44.168390][  T397]  copy_net_ns (net/core/net_namespace.c:579)
[   44.168597][  T397]  create_new_namespaces (kernel/nsproxy.c:132)
[   44.168814][  T397]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   44.169120][  T397]  ksys_unshare (kernel/fork.c:3243)
[   44.169325][  T397]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   44.169531][  T397]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   44.169737][  T397]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   44.170044][  T397]  ? __ia32_sys_open (fs/open.c:1374)
[   44.170255][  T397]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   44.170463][  T397]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   44.170667][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.170967][  T397]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.171174][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.171381][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.171636][  T397] RIP: 0033:0x7fe03b57abcb
[   44.171953][  T397] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   44.172685][  T397] RSP: 002b:00007ffd52c99aa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   44.173094][  T397] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe03b57abcb
[   44.173399][  T397] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   44.173708][  T397] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   44.174112][  T397] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd52c9bcd0
[   44.174422][  T397] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd52c9c875
| [   44.179737][  T397] ------------[ cut here ]------------
| [   44.179902][  T397] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/397
| [   44.180136][  T397] Modules linked in:
| [   44.180513][  T397] Tainted: [W]=WARN
[   44.180614][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.180780][  T397] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.180975][  T397] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.181447][  T397] RSP: 0018:ffa0000001087a78 EFLAGS: 00010286
[   44.181616][  T397] RAX: 00000000ffffffa6 RBX: ff11000006117700 RCX: 1ff4000000210f15
[   44.181818][  T397] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000061177bc
[   44.182029][  T397] RBP: ff11000013f39000 R08: 1fe2200000c22ef9 R09: ff110000135aae80
[   44.182230][  T397] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   44.182428][  T397] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013f39000
[   44.182631][  T397] FS:  00007fe03b2b8840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   44.182874][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.183048][  T397] CR2: 00007f00f5ba1574 CR3: 000000000cbcf005 CR4: 0000000000771ef0
[   44.183254][  T397] PKRU: 55555554
[   44.183354][  T397] Call Trace:
[   44.183455][  T397]  <TASK>
[   44.183524][  T397]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.183658][  T397]  ? notifier_call_chain (kernel/notifier.c:85)
[   44.183790][  T397]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.183903][  T397]  register_netdevice (net/core/dev.c:11488)
[   44.184035][  T397]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   44.184199][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.184334][  T397]  register_netdev (net/core/dev.c:11552)
[   44.184467][  T397]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   44.184602][  T397]  ops_init (net/core/net_namespace.c:137)
[   44.184704][  T397]  setup_net (net/core/net_namespace.c:446)
[   44.184805][  T397]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   44.184947][  T397]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   44.185079][  T397]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   44.185213][  T397]  copy_net_ns (net/core/net_namespace.c:579)
[   44.185346][  T397]  create_new_namespaces (kernel/nsproxy.c:132)
[   44.185482][  T397]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   44.185615][  T397]  ksys_unshare (kernel/fork.c:3243)
[   44.185747][  T397]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   44.185893][  T397]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   44.186026][  T397]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   44.186160][  T397]  ? __ia32_sys_open (fs/open.c:1374)
[   44.186293][  T397]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   44.186424][  T397]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   44.186557][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.186690][  T397]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.186824][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.186966][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.187131][  T397] RIP: 0033:0x7fe03b57abcb
[   44.187272][  T397] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   44.187749][  T397] RSP: 002b:00007ffd52c99aa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   44.187958][  T397] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe03b57abcb
[   44.188155][  T397] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   44.188352][  T397] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   44.188549][  T397] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd52c9bcd0
[   44.188748][  T397] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd52c9c875
| [   44.192920][  T397] ------------[ cut here ]------------
| [   44.193066][  T397] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/397
| [   44.193295][  T397] Modules linked in:
| [   44.193666][  T397] Tainted: [W]=WARN
[   44.193768][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.193949][  T397] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.194122][  T397] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.194593][  T397] RSP: 0018:ffa0000001087a68 EFLAGS: 00010286
[   44.194765][  T397] RAX: 00000000ffffffa6 RBX: ff1100000c14f1c0 RCX: 1ff4000000210f13
[   44.194975][  T397] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c14f27c
[   44.195177][  T397] RBP: ff1100000a4d4000 R08: 1fe2200001829e51 R09: ff110000135aae80
[   44.195375][  T397] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   44.195573][  T397] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a4d4000
[   44.195776][  T397] FS:  00007fe03b2b8840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   44.196021][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.196190][  T397] CR2: 00007f00f5ba1574 CR3: 000000000cbcf005 CR4: 0000000000771ef0
[   44.196390][  T397] PKRU: 55555554
[   44.196491][  T397] Call Trace:
[   44.196591][  T397]  <TASK>
[   44.196660][  T397]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.196794][  T397]  ? notifier_call_chain (kernel/notifier.c:85)
[   44.196939][  T397]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.197041][  T397]  register_netdevice (net/core/dev.c:11488)
[   44.197176][  T397]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   44.197343][  T397]  register_netdev (net/core/dev.c:11552)
[   44.197479][  T397]  sit_init_net (net/ipv6/sit.c:1860)
[   44.197614][  T397]  ops_init (net/core/net_namespace.c:137)
[   44.197715][  T397]  setup_net (net/core/net_namespace.c:446)
[   44.197817][  T397]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   44.197959][  T397]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   44.198091][  T397]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   44.198225][  T397]  copy_net_ns (net/core/net_namespace.c:579)
[   44.198359][  T397]  create_new_namespaces (kernel/nsproxy.c:132)
[   44.198500][  T397]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   44.198634][  T397]  ksys_unshare (kernel/fork.c:3243)
[   44.198768][  T397]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   44.198913][  T397]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   44.199047][  T397]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   44.199180][  T397]  ? __ia32_sys_open (fs/open.c:1374)
[   44.199315][  T397]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   44.199449][  T397]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   44.199582][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.199713][  T397]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.199850][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.199985][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.200149][  T397] RIP: 0033:0x7fe03b57abcb
[   44.200287][  T397] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   44.200761][  T397] RSP: 002b:00007ffd52c99aa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   44.200973][  T397] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe03b57abcb
[   44.201170][  T397] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   44.201369][  T397] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   44.201565][  T397] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd52c9bcd0
[   44.201760][  T397] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd52c9c875
| [   44.206416][  T397] ------------[ cut here ]------------
| [   44.206559][  T397] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/397
| [   44.206791][  T397] Modules linked in:
| [   44.207176][  T397] Tainted: [W]=WARN
[   44.207277][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.207443][  T397] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.207619][  T397] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.208103][  T397] RSP: 0018:ffa0000001087a78 EFLAGS: 00010286
[   44.208271][  T397] RAX: 00000000ffffffa6 RBX: ff1100000dbbe3c0 RCX: 1ff4000000210f15
[   44.208472][  T397] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbbe47c
[   44.208672][  T397] RBP: ff110000120f9000 R08: 1fe2200001b77c91 R09: ff110000135aae80
[   44.208882][  T397] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   44.209081][  T397] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000120f9000
[   44.209283][  T397] FS:  00007fe03b2b8840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   44.209518][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.209686][  T397] CR2: 00007f00f5ba1574 CR3: 000000000cbcf005 CR4: 0000000000771ef0
[   44.209902][  T397] PKRU: 55555554
[   44.210005][  T397] Call Trace:
[   44.210105][  T397]  <TASK>
[   44.210174][  T397]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.210306][  T397]  ? notifier_call_chain (kernel/notifier.c:85)
[   44.210439][  T397]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.210540][  T397]  register_netdevice (net/core/dev.c:11488)
[   44.210675][  T397]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   44.210844][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.210983][  T397]  register_netdev (net/core/dev.c:11552)
[   44.211116][  T397]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   44.211262][  T397]  ops_init (net/core/net_namespace.c:137)
[   44.211364][  T397]  setup_net (net/core/net_namespace.c:446)
[   44.211467][  T397]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   44.211601][  T397]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   44.211733][  T397]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   44.211872][  T397]  copy_net_ns (net/core/net_namespace.c:579)
[   44.212013][  T397]  create_new_namespaces (kernel/nsproxy.c:132)
[   44.212150][  T397]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   44.212283][  T397]  ksys_unshare (kernel/fork.c:3243)
[   44.212415][  T397]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   44.212561][  T397]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   44.212693][  T397]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   44.212828][  T397]  ? __ia32_sys_open (fs/open.c:1374)
[   44.212978][  T397]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   44.213109][  T397]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   44.213240][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.213373][  T397]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.213506][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.213640][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.213804][  T397] RIP: 0033:0x7fe03b57abcb
[   44.213965][  T397] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   44.214435][  T397] RSP: 002b:00007ffd52c99aa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   44.214638][  T397] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe03b57abcb
[   44.214842][  T397] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   44.215047][  T397] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   44.215244][  T397] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd52c9bcd0
[   44.215442][  T397] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd52c9c875
| [   44.353555][  T400] ------------[ cut here ]------------
| [   44.353806][  T400] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/400
| [   44.354186][  T400] Modules linked in:
| [   44.354773][  T400] Tainted: [W]=WARN
[   44.354943][  T400] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.355204][  T400] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.355474][  T400] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.356212][  T400] RSP: 0018:ffa00000010b6e30 EFLAGS: 00010286
[   44.356469][  T400] RAX: 00000000ffffffa6 RBX: ff1100000dbbf8c0 RCX: 1ff4000000216d8c
[   44.356775][  T400] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbbf97c
[   44.357097][  T400] RBP: ff11000005229000 R08: 1fe2200001b77f31 R09: ff110000141c8b80
[   44.357395][  T400] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   44.357692][  T400] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c0a3190
[   44.358007][  T400] FS:  00007fe4f1003840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   44.358369][  T400] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.358622][  T400] CR2: 000000000042ebe0 CR3: 0000000004e92006 CR4: 0000000000771ef0
[   44.358935][  T400] PKRU: 55555554
[   44.359088][  T400] Call Trace:
[   44.359241][  T400]  <TASK>
[   44.359348][  T400]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.359555][  T400]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.359709][  T400]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   44.359967][  T400]  __dev_notify_flags (net/core/dev.c:9787)
[   44.360170][  T400]  ? netif_change_name (net/core/dev.c:1495)
[   44.360372][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   44.360574][  T400]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   44.360772][  T400]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   44.360993][  T400]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   44.361201][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.361403][  T400]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   44.361606][  T400]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   44.361806][  T400]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   44.362020][  T400]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   44.362224][  T400]  veth_newlink (drivers/net/veth.c:1871)
[   44.362425][  T400]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   44.362628][  T400]  ? kasan_save_stack (mm/kasan/common.c:57)
[   44.362839][  T400]  ? kasan_save_track (mm/kasan/common.c:78)
[   44.363044][  T400]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   44.363277][  T400]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   44.363482][  T400]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   44.363688][  T400]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   44.363902][  T400]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   44.364110][  T400]  ? rtnl_create_link (net/core/rtnetlink.c:3733)
[   44.364314][  T400]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   44.364519][  T400]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   44.364723][  T400]  ? __dev_get_by_name (net/core/dev.c:883)
[   44.364937][  T400]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   44.365154][  T400]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   44.365365][  T400]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   44.365574][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.365782][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.366000][  T400]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.366205][  T400]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   44.366415][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.366631][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.366839][  T400]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.367039][  T400]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   44.367248][  T400]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.367454][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.367661][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.367875][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.368075][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.368281][  T400]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   44.368484][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.368686][  T400]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   44.368908][  T400]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   44.369117][  T400]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   44.369325][  T400]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   44.369531][  T400]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   44.369735][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.369950][  T400]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   44.370167][  T400]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   44.370382][  T400]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   44.370597][  T400]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   44.370805][  T400]  ? copy_msghdr_from_user (net/socket.c:2635)
[   44.371022][  T400]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   44.371280][  T400]  ? move_addr_to_kernel (net/socket.c:258)
[   44.371495][  T400]  ___sys_sendmsg (net/socket.c:2752)
[   44.371702][  T400]  ? copy_msghdr_from_user (net/socket.c:2603)
[   44.371931][  T400]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   44.372205][  T400]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   44.372419][  T400]  __sys_sendmsg (net/socket.c:2784)
[   44.372628][  T400]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   44.372850][  T400]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   44.373065][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.373278][  T400]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.373485][  T400]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.373691][  T400]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.373915][  T400]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.374171][  T400] RIP: 0033:0x7fe4f123d08e
[   44.374390][  T400] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   44.375144][  T400] RSP: 002b:00007fff63300a50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   44.375466][  T400] RAX: ffffffffffffffda RBX: 00007fff63301208 RCX: 00007fe4f123d08e
[   44.375777][  T400] RDX: 0000000000000000 RSI: 00007fff63300b00 RDI: 0000000000000005
[   44.376102][  T400] RBP: 00007fff63300a60 R08: 0000000000000000 R09: 0000000000000000
[   44.376418][  T400] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3db
[   44.376736][  T400] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff633011c0
| [   44.399322][  T400] ------------[ cut here ]------------
| [   44.399481][  T400] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/400
| [   44.399717][  T400] Modules linked in:
| [   44.400115][  T400] Tainted: [W]=WARN
[   44.400216][  T400] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.400385][  T400] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.400562][  T400] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.401063][  T400] RSP: 0018:ffa00000010b71b0 EFLAGS: 00010286
[   44.401234][  T400] RAX: 00000000ffffffa6 RBX: ff1100000c14fa80 RCX: 1ff4000000216dfc
[   44.401435][  T400] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c14fb3c
[   44.401636][  T400] RBP: ff1100000522c000 R08: 1fe2200001829f69 R09: ff110000141c8b80
[   44.401844][  T400] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   44.402052][  T400] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa8c03b20
[   44.402258][  T400] FS:  00007fe4f1003840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   44.402500][  T400] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.402670][  T400] CR2: 000000000042ebe0 CR3: 0000000004e92006 CR4: 0000000000771ef0
[   44.402881][  T400] PKRU: 55555554
[   44.402983][  T400] Call Trace:
[   44.403085][  T400]  <TASK>
[   44.403157][  T400]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.403295][  T400]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.403398][  T400]  __dev_notify_flags (net/core/dev.c:9787)
[   44.403536][  T400]  ? netif_change_name (net/core/dev.c:1495)
[   44.403672][  T400]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   44.403808][  T400]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   44.403955][  T400]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   44.404093][  T400]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   44.404231][  T400]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   44.404366][  T400]  ? __dev_get_by_name (net/core/dev.c:883)
[   44.404501][  T400]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   44.404643][  T400]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   44.404782][  T400]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   44.404928][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.405062][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.405198][  T400]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.405333][  T400]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   44.405468][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.405606][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.405744][  T400]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.405890][  T400]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   44.406027][  T400]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.406161][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.406299][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.406436][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.406569][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.406703][  T400]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   44.406843][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.406984][  T400]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   44.407122][  T400]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   44.407256][  T400]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   44.407394][  T400]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   44.407533][  T400]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   44.407669][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.407806][  T400]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   44.407952][  T400]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   44.408090][  T400]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   44.408227][  T400]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   44.408364][  T400]  ? copy_msghdr_from_user (net/socket.c:2635)
[   44.408499][  T400]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   44.408667][  T400]  ? move_addr_to_kernel (net/socket.c:258)
[   44.408804][  T400]  ___sys_sendmsg (net/socket.c:2752)
[   44.408948][  T400]  ? copy_msghdr_from_user (net/socket.c:2603)
[   44.409088][  T400]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   44.409265][  T400]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   44.409405][  T400]  __sys_sendmsg (net/socket.c:2784)
[   44.409541][  T400]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   44.409681][  T400]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   44.409818][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.409965][  T400]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.410102][  T400]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.410238][  T400]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.410374][  T400]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.410543][  T400] RIP: 0033:0x7fe4f123d08e
[   44.410684][  T400] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   44.411175][  T400] RSP: 002b:00007fff63300a50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   44.411381][  T400] RAX: ffffffffffffffda RBX: 00007fff63301208 RCX: 00007fe4f123d08e
[   44.411584][  T400] RDX: 0000000000000000 RSI: 00007fff63300b00 RDI: 0000000000000005
[   44.411789][  T400] RBP: 00007fff63300a60 R08: 0000000000000000 R09: 0000000000000000
[   44.412002][  T400] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3db
[   44.412204][  T400] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff633011c0
| [   44.442278][  T401] ------------[ cut here ]------------
| [   44.442477][  T401] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/401
| [   44.442754][  T401] Modules linked in:
| [   44.443247][  T401] Tainted: [W]=WARN
[   44.443395][  T401] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.443609][  T401] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.443923][  T401] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.444502][  T401] RSP: 0018:ffa00000010c7020 EFLAGS: 00010286
[   44.444808][  T401] RAX: 00000000ffffffa6 RBX: ff11000009516900 RCX: 1ff4000000218dca
[   44.445158][  T401] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000095169bc
[   44.445468][  T401] RBP: ff1100000522c000 R08: 1fe22000012a2d39 R09: ff110000141cae58
[   44.445799][  T401] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   44.446152][  T401] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   44.446453][  T401] FS:  00007f5500fba840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   44.446821][  T401] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.447051][  T401] CR2: 000000000abc4988 CR3: 00000000052a7001 CR4: 0000000000771ef0
[   44.447301][  T401] PKRU: 55555554
[   44.447447][  T401] Call Trace:
[   44.447594][  T401]  <TASK>
[   44.447710][  T401]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.447910][  T401]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.448062][  T401]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   44.448241][  T401]  __dev_notify_flags (net/core/dev.c:9787)
[   44.448425][  T401]  ? netif_change_name (net/core/dev.c:1495)
[   44.448609][  T401]  ? __dev_change_flags (net/core/dev.c:9752)
[   44.448789][  T401]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   44.448991][  T401]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.449176][  T401]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   44.449360][  T401]  netif_change_flags (net/core/dev.c:9820)
[   44.449543][  T401]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   44.449725][  T401]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   44.449931][  T401]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   44.450118][  T401]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   44.450336][  T401]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   44.450517][  T401]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.450697][  T401]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   44.450894][  T401]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   44.451084][  T401]  ? __kernel_text_address (kernel/extable.c:79)
[   44.451266][  T401]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.451450][  T401]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.451630][  T401]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   44.451812][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.452017][  T401]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   44.452198][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.452380][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.452565][  T401]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   44.452747][  T401]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   44.452953][  T401]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   44.453137][  T401]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   44.453321][  T401]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   44.453505][  T401]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   44.453690][  T401]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   44.453892][  T401]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.454077][  T401]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.454260][  T401]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.454439][  T401]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   44.454619][  T401]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.454803][  T401]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.455000][  T401]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.455182][  T401]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.455368][  T401]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.455552][  T401]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.455733][  T401]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   44.455935][  T401]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.456115][  T401]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.456296][  T401]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.456478][  T401]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.456657][  T401]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.456853][  T401]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   44.457040][  T401]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.457222][  T401]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   44.457406][  T401]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   44.457586][  T401]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   44.457770][  T401]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   44.457972][  T401]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   44.458160][  T401]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.458341][  T401]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   44.458523][  T401]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   44.458707][  T401]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   44.458909][  T401]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   44.459093][  T401]  ? copy_msghdr_from_user (net/socket.c:2635)
[   44.459274][  T401]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   44.459483][  T401]  ? move_addr_to_kernel (net/socket.c:258)
[   44.459667][  T401]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   44.459861][  T401]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.460052][  T401]  ___sys_sendmsg (net/socket.c:2752)
[   44.460234][  T401]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   44.460445][  T401]  ? copy_msghdr_from_user (net/socket.c:2603)
[   44.460638][  T401]  __sys_sendmsg (net/socket.c:2784)
[   44.460821][  T401]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   44.461027][  T401]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   44.461246][  T401]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   44.461428][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.461611][  T401]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.461791][  T401]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.461993][  T401]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.462177][  T401]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.462397][  T401] RIP: 0033:0x7f55011f408e
[   44.462583][  T401] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   44.463124][  T401] RSP: 002b:00007ffce7c19a40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   44.463371][  T401] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f55011f408e
[   44.463618][  T401] RDX: 0000000000000000 RSI: 00007ffce7c19af0 RDI: 0000000000000005
[   44.463888][  T401] RBP: 00007ffce7c19a50 R08: 0000000000000000 R09: 0000000000000000
[   44.464135][  T401] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3db
[   44.464380][  T401] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffce7c1a1c0
| [   44.490022][  T402] ------------[ cut here ]------------
| [   44.490215][  T402] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/402
| [   44.490492][  T402] Modules linked in:
| [   44.491583][  T402] Tainted: [W]=WARN
[   44.491730][  T402] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.491963][  T402] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.492184][  T402] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.492699][  T402] RSP: 0018:ffa00000010c7020 EFLAGS: 00010286
[   44.492934][  T402] RAX: 00000000ffffffa6 RBX: ff11000009517380 RCX: 1ff4000000218dca
[   44.493177][  T402] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000951743c
[   44.493419][  T402] RBP: ff11000005229000 R08: 1fe22000012a2e89 R09: ff110000141cd158
[   44.493666][  T402] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   44.493923][  T402] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   44.494169][  T402] FS:  00007f5c90712840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   44.494447][  T402] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.494664][  T402] CR2: 00007f5c909e21a0 CR3: 0000000012db5004 CR4: 0000000000771ef0
[   44.494931][  T402] PKRU: 55555554
[   44.495078][  T402] Call Trace:
[   44.495223][  T402]  <TASK>
[   44.495340][  T402]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.495523][  T402]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.495672][  T402]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   44.495861][  T402]  __dev_notify_flags (net/core/dev.c:9787)
[   44.496055][  T402]  ? netif_change_name (net/core/dev.c:1495)
[   44.496234][  T402]  ? __dev_change_flags (net/core/dev.c:9752)
[   44.496416][  T402]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   44.496598][  T402]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.496781][  T402]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   44.496984][  T402]  netif_change_flags (net/core/dev.c:9820)
[   44.497171][  T402]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   44.497360][  T402]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   44.497543][  T402]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   44.497722][  T402]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   44.497955][  T402]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   44.498139][  T402]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.498321][  T402]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   44.498503][  T402]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   44.498683][  T402]  ? __kernel_text_address (kernel/extable.c:79)
[   44.498883][  T402]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.499067][  T402]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.499247][  T402]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   44.499429][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.499608][  T402]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   44.499787][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.499992][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.500180][  T402]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   44.500363][  T402]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   44.500542][  T402]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   44.500723][  T402]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   44.500924][  T402]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   44.501111][  T402]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   44.501297][  T402]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   44.501484][  T402]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.501663][  T402]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.501858][  T402]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.502044][  T402]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   44.502225][  T402]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.502409][  T402]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.502591][  T402]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.502777][  T402]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.502983][  T402]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.503168][  T402]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.503350][  T402]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   44.503533][  T402]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.503713][  T402]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.503912][  T402]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.504094][  T402]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.504276][  T402]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.504459][  T402]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   44.504639][  T402]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.504820][  T402]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   44.505028][  T402]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   44.505212][  T402]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   44.505396][  T402]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   44.505584][  T402]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   44.505765][  T402]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.505965][  T402]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   44.506147][  T402]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   44.506329][  T402]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   44.506511][  T402]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   44.506691][  T402]  ? copy_msghdr_from_user (net/socket.c:2635)
[   44.506890][  T402]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   44.507105][  T402]  ? move_addr_to_kernel (net/socket.c:258)
[   44.507287][  T402]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   44.507466][  T402]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.507649][  T402]  ___sys_sendmsg (net/socket.c:2752)
[   44.507844][  T402]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   44.508057][  T402]  ? copy_msghdr_from_user (net/socket.c:2603)
[   44.508248][  T402]  __sys_sendmsg (net/socket.c:2784)
[   44.508431][  T402]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   44.508609][  T402]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   44.508821][  T402]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   44.509023][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.509208][  T402]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.509385][  T402]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.509563][  T402]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.509747][  T402]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.509978][  T402] RIP: 0033:0x7f5c9094c08e
[   44.510165][  T402] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   44.510673][  T402] RSP: 002b:00007fff815d7390 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   44.510942][  T402] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5c9094c08e
[   44.511185][  T402] RDX: 0000000000000000 RSI: 00007fff815d7440 RDI: 0000000000000005
[   44.511433][  T402] RBP: 00007fff815d73a0 R08: 0000000000000000 R09: 0000000000000000
[   44.511677][  T402] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3db
[   44.511947][  T402] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff815d7b10
| [   44.514366][   T71] ------------[ cut here ]------------
| [   44.514505][   T71] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/71
| [   44.514754][   T71] Modules linked in:
| [   44.515154][   T71] Tainted: [W]=WARN
[   44.515247][   T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.515403][   T71] Workqueue: events_unbound linkwatch_event
[   44.515562][   T71] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.515721][   T71] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.516169][   T71] RSP: 0018:ffa00000004c79e0 EFLAGS: 00010286
[   44.516326][   T71] RAX: 00000000ffffffa6 RBX: ff1100000cf8dc40 RCX: 1ff4000000098f02
[   44.516505][   T71] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf8dcfc
[   44.516686][   T71] RBP: ff1100000522c000 R08: 1fe22000019f1ba1 R09: ff11000009222ea8
[   44.516875][   T71] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   44.517063][   T71] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   44.517245][   T71] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   44.517457][   T71] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.517610][   T71] CR2: 0000563127ae6f28 CR3: 000000003174d003 CR4: 0000000000771ef0
[   44.517800][   T71] PKRU: 55555554
[   44.517905][   T71] Call Trace:
[   44.517997][   T71]  <TASK>
[   44.518061][   T71]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.518183][   T71]  ? notifier_call_chain (kernel/notifier.c:85)
[   44.518305][   T71]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.518399][   T71]  netif_state_change (net/core/dev.c:1605)
[   44.518522][   T71]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   44.518676][   T71]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   44.518798][   T71]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   44.518931][   T71]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   44.519055][   T71]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   44.519176][   T71]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   44.519298][   T71]  process_one_work (kernel/workqueue.c:3314)
[   44.519425][   T71]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   44.519552][   T71]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.519678][   T71]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   44.519802][   T71]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   44.519935][   T71]  kthread (kernel/kthread.c:436)
[   44.520026][   T71]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   44.520177][   T71]  ? kthread_affine_node (kernel/kthread.c:378)
[   44.520371][   T71]  ret_from_fork (arch/x86/kernel/process.c:158)
[   44.520495][   T71]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   44.520644][   T71]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   44.520766][   T71]  ? kthread_affine_node (kernel/kthread.c:378)
[   44.520898][   T71]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   44.561051][  T403] ------------[ cut here ]------------
| [   44.561264][  T403] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/403
| [   44.561600][  T403] Modules linked in:
| [   44.562095][  T403] Tainted: [W]=WARN
[   44.562203][  T403] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.562371][  T403] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.562548][  T403] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.563050][  T403] RSP: 0018:ffa00000010d7050 EFLAGS: 00010286
[   44.563228][  T403] RAX: 00000000ffffffa6 RBX: ff1100000ce1fc40 RCX: 1ff400000021add0
[   44.563426][  T403] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce1fcfc
[   44.563639][  T403] RBP: ff1100000522c000 R08: 1fe22000019c3fa1 R09: ff1100000f80d180
[   44.563850][  T403] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   44.564053][  T403] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   44.564252][  T403] FS:  00007f91b4ab0840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   44.564485][  T403] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.564653][  T403] CR2: 00007f91b4d801a0 CR3: 00000000118c2003 CR4: 0000000000771ef0
[   44.564857][  T403] PKRU: 55555554
[   44.564962][  T403] Call Trace:
[   44.565064][  T403]  <TASK>
[   44.565133][  T403]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.565267][  T403]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   44.565400][  T403]  notifier_call_chain (kernel/notifier.c:85)
[   44.565537][  T403]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   44.565673][  T403]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.565807][  T403]  ? netif_set_group (net/core/dev.c:9947)
[   44.565955][  T403]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   44.566122][  T403]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   44.566259][  T403]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   44.566395][  T403]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   44.566531][  T403]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   44.566697][  T403]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   44.566830][  T403]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.566976][  T403]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   44.567109][  T403]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   44.567242][  T403]  ? __kernel_text_address (kernel/extable.c:79)
[   44.567377][  T403]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.567513][  T403]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.567647][  T403]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   44.567781][  T403]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.568444][  T403]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   44.568582][  T403]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.568714][  T403]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.568852][  T403]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   44.568989][  T403]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   44.569121][  T403]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   44.569253][  T403]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   44.569393][  T403]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   44.569529][  T403]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   44.569665][  T403]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.569796][  T403]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.569941][  T403]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.570073][  T403]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   44.570205][  T403]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.570342][  T403]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.570473][  T403]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.570606][  T403]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.570740][  T403]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.570884][  T403]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.571017][  T403]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   44.571149][  T403]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.571282][  T403]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.571416][  T403]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.571551][  T403]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.571685][  T403]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.571820][  T403]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   44.571962][  T403]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.572095][  T403]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   44.572232][  T403]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   44.572364][  T403]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   44.572498][  T403]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   44.572631][  T403]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   44.572767][  T403]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.572913][  T403]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   44.573048][  T403]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   44.573183][  T403]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   44.573320][  T403]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   44.573454][  T403]  ? copy_msghdr_from_user (net/socket.c:2635)
[   44.573586][  T403]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   44.573752][  T403]  ? move_addr_to_kernel (net/socket.c:258)
[   44.573895][  T403]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   44.574029][  T403]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.574165][  T403]  ___sys_sendmsg (net/socket.c:2752)
[   44.574299][  T403]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   44.574466][  T403]  ? copy_msghdr_from_user (net/socket.c:2603)
[   44.574612][  T403]  __sys_sendmsg (net/socket.c:2784)
[   44.574745][  T403]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   44.574888][  T403]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   44.575057][  T403]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   44.575190][  T403]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.575323][  T403]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.575458][  T403]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.575591][  T403]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.575724][  T403]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.575900][  T403] RIP: 0033:0x7f91b4cea08e
[   44.576039][  T403] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   44.576516][  T403] RSP: 002b:00007ffe53177dc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   44.576719][  T403] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f91b4cea08e
[   44.576926][  T403] RDX: 0000000000000000 RSI: 00007ffe53177e70 RDI: 0000000000000005
[   44.577127][  T403] RBP: 00007ffe53177dd0 R08: 0000000000000000 R09: 0000000000000000
[   44.577323][  T403] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3dc
[   44.577522][  T403] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe53178540
| [   44.601740][  T404] ------------[ cut here ]------------
| [   44.601919][  T404] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/404
| [   44.602148][  T404] Modules linked in:
| [   44.602520][  T404] Tainted: [W]=WARN
[   44.602621][  T404] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.602788][  T404] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.602973][  T404] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.603446][  T404] RSP: 0018:ffa00000010e7150 EFLAGS: 00010286
[   44.603610][  T404] RAX: 00000000ffffffa6 RBX: ff110000139eb540 RCX: 1ff400000021cdf0
[   44.603812][  T404] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000139eb5fc
[   44.604018][  T404] RBP: ff11000005229000 R08: 1fe220000273d6c1 R09: ff1100000f80ae58
[   44.604218][  T404] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   44.604413][  T404] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001316a340
[   44.604612][  T404] FS:  00007f2a0bb9f840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   44.604848][  T404] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.605016][  T404] CR2: 00000000004ebb20 CR3: 0000000015a9d005 CR4: 0000000000771ef0
[   44.605213][  T404] PKRU: 55555554
[   44.605311][  T404] Call Trace:
[   44.605408][  T404]  <TASK>
[   44.605477][  T404]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   44.605608][  T404]  ? notifier_call_chain (kernel/notifier.c:85)
[   44.605742][  T404]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   44.605930][  T404]  netif_state_change (net/core/dev.c:1605)
[   44.606066][  T404]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   44.606230][  T404]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   44.606396][  T404]  linkwatch_sync_dev (net/core/link_watch.c:295)
[   44.606531][  T404]  rtnl_getlink (net/core/rtnetlink.c:4273)
[   44.606665][  T404]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.606795][  T404]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.607019][  T404]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   44.607152][  T404]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   44.607282][  T404]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.607415][  T404]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.607562][  T404]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.607692][  T404]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.607824][  T404]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   44.608039][  T404]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.608174][  T404]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.608308][  T404]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.608440][  T404]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   44.608571][  T404]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   44.608703][  T404]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.608928][  T404]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.609060][  T404]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.609192][  T404]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.609324][  T404]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.609457][  T404]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   44.609588][  T404]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.609721][  T404]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   44.609935][  T404]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   44.610068][  T404]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   44.610200][  T404]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   44.610334][  T404]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   44.610467][  T404]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.610600][  T404]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   44.610732][  T404]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   44.610943][  T404]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   44.611077][  T404]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   44.611211][  T404]  ? copy_msghdr_from_user (net/socket.c:2635)
[   44.611341][  T404]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   44.611510][  T404]  ? move_addr_to_kernel (net/socket.c:258)
[   44.611640][  T404]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   44.611772][  T404]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   44.612024][  T404]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   44.612153][  T404]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   44.612316][  T404]  ___sys_sendmsg (net/socket.c:2752)
[   44.612447][  T404]  ? copy_msghdr_from_user (net/socket.c:2603)
[   44.612577][  T404]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.612716][  T404]  ? move_addr_to_user (./include/linux/uaccess.h:236 net/socket.c:302)
[   44.612852][  T404]  ? do_getsockname (net/socket.c:2192)
[   44.612988][  T404]  __sys_sendmsg (net/socket.c:2784)
[   44.613120][  T404]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   44.613257][  T404]  ? __sys_getsockname (net/socket.c:2210)
[   44.613387][  T404]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.613525][  T404]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.613655][  T404]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.613785][  T404]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.613927][  T404]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.614088][  T404] RIP: 0033:0x7f2a0bdd908e
[   44.614225][  T404] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   44.614699][  T404] RSP: 002b:00007ffd07de7f80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   44.614906][  T404] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2a0bdd908e
[   44.615102][  T404] RDX: 0000000000000000 RSI: 00007ffd07de8030 RDI: 0000000000000006
[   44.615296][  T404] RBP: 00007ffd07de7f90 R08: 0000000000000000 R09: 0000000000000000
[   44.615495][  T404] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3db
[   44.615692][  T404] R13: 00007ffd07de80e0 R14: 0000000000000000 R15: 0000000000000004
| [   44.620753][  T404] ------------[ cut here ]------------
| [   44.621215][  T404] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/404
| [   44.621452][  T404] Modules linked in:
| [   44.621826][  T404] Tainted: [W]=WARN
[   44.621938][  T404] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.622104][  T404] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   44.622277][  T404] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   44.622743][  T404] RSP: 0018:ffa00000010e7050 EFLAGS: 00010286
[   44.622923][  T404] RAX: 00000000ffffffa6 RBX: ff1100000ce1f000 RCX: 1ff400000021cdd0
[   44.623119][  T404] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce1f0bc
[   44.623317][  T404] RBP: ff11000005229000 R08: 1fe22000019c3e19 R09: ff1100000f80ae80
[   44.623513][  T404] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   44.623711][  T404] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   44.623924][  T404] FS:  00007f2a0bb9f840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   44.624162][  T404] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.624327][  T404] CR2: 00007f2a0c038668 CR3: 0000000015a9d005 CR4: 0000000000771ef0
[   44.624528][  T404] PKRU: 55555554
[   44.624628][  T404] Call Trace:
[   44.624729][  T404]  <TASK>
[   44.624797][  T404]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.624940][  T404]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   44.625075][  T404]  notifier_call_chain (kernel/notifier.c:85)
[   44.625210][  T404]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   44.625343][  T404]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.625477][  T404]  ? netif_set_group (net/core/dev.c:9947)
[   44.625612][  T404]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   44.625777][  T404]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   44.625923][  T404]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   44.626058][  T404]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   44.626191][  T404]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   44.626356][  T404]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   44.626489][  T404]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.626622][  T404]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   44.626753][  T404]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   44.626896][  T404]  ? __kernel_text_address (kernel/extable.c:79)
[   44.627030][  T404]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.627163][  T404]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.627294][  T404]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   44.627428][  T404]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.627562][  T404]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   44.627693][  T404]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.627824][  T404]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.627970][  T404]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   44.628104][  T404]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   44.628237][  T404]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   44.628370][  T404]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   44.628508][  T404]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   44.628644][  T404]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   44.628779][  T404]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.628920][  T404]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.629053][  T404]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.629185][  T404]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   44.629317][  T404]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.629453][  T404]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.629586][  T404]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.629719][  T404]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.629858][  T404]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   44.629996][  T404]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   44.630130][  T404]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   44.630264][  T404]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.630397][  T404]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.630533][  T404]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.630667][  T404]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   44.630799][  T404]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   44.630944][  T404]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   44.631076][  T404]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.631209][  T404]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   44.631347][  T404]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   44.631496][  T404]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   44.631633][  T404]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   44.631767][  T404]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   44.631910][  T404]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   44.632044][  T404]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   44.632176][  T404]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   44.632309][  T404]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   44.632442][  T404]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   44.632575][  T404]  ? copy_msghdr_from_user (net/socket.c:2635)
[   44.632709][  T404]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   44.632883][  T404]  ? move_addr_to_kernel (net/socket.c:258)
[   44.633022][  T404]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   44.633155][  T404]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   44.633288][  T404]  ___sys_sendmsg (net/socket.c:2752)
[   44.633420][  T404]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   44.633587][  T404]  ? copy_msghdr_from_user (net/socket.c:2603)
[   44.633733][  T404]  __sys_sendmsg (net/socket.c:2784)
[   44.633872][  T404]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   44.634010][  T404]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   44.634177][  T404]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   44.634309][  T404]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   44.634443][  T404]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   44.634574][  T404]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   44.634709][  T404]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   44.634845][  T404]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.635012][  T404] RIP: 0033:0x7f2a0bdd908e
[   44.635151][  T404] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   44.635625][  T404] RSP: 002b:00007ffd07de9c00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   44.635826][  T404] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2a0bdd908e
[   44.636034][  T404] RDX: 0000000000000000 RSI: 00007ffd07de9cb0 RDI: 0000000000000005
[   44.636232][  T404] RBP: 00007ffd07de9c10 R08: 0000000000000000 R09: 0000000000000000
[   44.636430][  T404] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3dc
[   44.636629][  T404] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd07dea380
| [   47.643871][   T12] ------------[ cut here ]------------
| [   47.644048][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   47.644294][   T12] Modules linked in:
| [   47.644666][   T12] Tainted: [W]=WARN
[   47.644757][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.644917][   T12] Workqueue: netns cleanup_net
[   47.645042][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.645202][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.645633][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   47.645783][   T12] RAX: 00000000ffffffa6 RBX: ff11000012ddcac0 RCX: 1ff4000000018eed
[   47.645971][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012ddcb7c
[   47.646147][   T12] RBP: ff110000120f9000 R08: 1fe22000025bb971 R09: ff11000001aed1d0
[   47.646325][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   47.646504][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   47.646682][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   47.646901][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.647053][   T12] CR2: 00007f50c705d000 CR3: 000000003174d001 CR4: 0000000000771ef0
[   47.647230][   T12] PKRU: 55555554
[   47.647321][   T12] Call Trace:
[   47.647411][   T12]  <TASK>
[   47.647474][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.647626][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.647774][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   47.647907][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   47.648026][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.648144][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   47.648262][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.648385][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   47.648506][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.648621][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.648742][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.648866][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.649003][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.649124][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.649241][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.649363][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.649484][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.649602][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.649720][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.649846][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.649966][   T12]  kthread (kernel/kthread.c:436)
[   47.650054][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.650202][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.650319][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.650438][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.650583][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.650698][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.650816][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.653086][   T12] ------------[ cut here ]------------
| [   47.653207][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   47.653430][   T12] Modules linked in:
| [   47.653794][   T12] Tainted: [W]=WARN
[   47.653893][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.654041][   T12] Workqueue: netns cleanup_net
[   47.654165][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.654315][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.654732][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   47.654890][   T12] RAX: 00000000ffffffa6 RBX: ff11000012ddd1c0 RCX: 1ff4000000018eed
[   47.655063][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012ddd27c
[   47.655238][   T12] RBP: ff1100000a4d4000 R08: 1fe22000025bba51 R09: ff11000001aed1d0
[   47.655420][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   47.655592][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   47.655767][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   47.655983][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.656127][   T12] CR2: 00007f50c705d000 CR3: 000000003174d001 CR4: 0000000000771ef0
[   47.656381][   T12] PKRU: 55555554
[   47.656469][   T12] Call Trace:
[   47.656554][   T12]  <TASK>
[   47.656615][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.656839][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.656985][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   47.657103][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   47.657223][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.657413][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   47.657530][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.657647][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   47.657764][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.657957][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.658075][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.658194][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.658310][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.658500][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.658620][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.658744][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.658871][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.659064][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.659189][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.659311][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.659425][   T12]  kthread (kernel/kthread.c:436)
[   47.659586][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.659739][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.659861][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.659981][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.660197][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.660311][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.660428][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.663398][   T12] ------------[ cut here ]------------
| [   47.663584][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   47.663807][   T12] Modules linked in:
| [   47.664243][   T12] Tainted: [W]=WARN
[   47.664332][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.664478][   T12] Workqueue: netns cleanup_net
[   47.664673][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.664824][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.665328][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   47.665478][   T12] RAX: 00000000ffffffa6 RBX: ff11000012ddd8c0 RCX: 1ff4000000018eed
[   47.665729][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012ddd97c
[   47.665910][   T12] RBP: ff11000013f39000 R08: 1fe22000025bbb31 R09: ff11000001aed1d0
[   47.666083][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   47.666328][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   47.666500][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   47.666776][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.666930][   T12] CR2: 00007f50c705d000 CR3: 000000003174d001 CR4: 0000000000771ef0
[   47.667103][   T12] PKRU: 55555554
[   47.667191][   T12] Call Trace:
[   47.667348][   T12]  <TASK>
[   47.667410][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.667561][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.667705][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   47.667973][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   47.668091][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.668208][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   47.668326][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.668450][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   47.668570][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.668687][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.668808][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.669008][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.669125][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.669242][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.669358][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.669549][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.669672][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.669792][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.669922][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.670117][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.670234][   T12]  kthread (kernel/kthread.c:436)
[   47.670325][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.670469][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.670659][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.670776][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.670931][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.671045][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.671234][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.673599][   T12] ------------[ cut here ]------------
| [   47.673715][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   47.674092][   T12] Modules linked in:
| [   47.674446][   T12] Tainted: [W]=WARN
[   47.674608][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.674754][   T12] Workqueue: netns cleanup_net
[   47.674878][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.675033][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.675525][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   47.675746][   T12] RAX: 00000000ffffffa6 RBX: ff11000012dddc40 RCX: 1ff4000000018eed
[   47.675930][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012dddcfc
[   47.676108][   T12] RBP: ff1100000e42c000 R08: 1fe22000025bbba1 R09: ff11000001aed1d0
[   47.676357][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   47.676532][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   47.676785][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   47.677032][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.677180][   T12] CR2: 00007f50c705d000 CR3: 000000003174d001 CR4: 0000000000771ef0
[   47.677430][   T12] PKRU: 55555554
[   47.677518][   T12] Call Trace:
[   47.677608][   T12]  <TASK>
[   47.677671][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.677823][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.677983][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   47.678101][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   47.678220][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.678408][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   47.678599][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.678720][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   47.678845][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.679034][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.679153][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.679271][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.679386][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.679576][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.679698][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.679821][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.679953][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.680143][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.680264][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.680389][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.680504][   T12]  kthread (kernel/kthread.c:436)
[   47.680592][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.680810][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.680941][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.681061][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.681284][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.681408][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.681527][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.683882][   T12] ------------[ cut here ]------------
| [   47.684006][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   47.684233][   T12] Modules linked in:
| [   47.684662][   T12] Tainted: [W]=WARN
[   47.684749][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.684913][   T12] Workqueue: netns cleanup_net
[   47.685110][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.685260][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.685756][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   47.685915][   T12] RAX: 00000000ffffffa6 RBX: ff11000011bf83c0 RCX: 1ff4000000018eed
[   47.686090][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000011bf847c
[   47.686341][   T12] RBP: ff11000008649000 R08: 1fe220000237f091 R09: ff11000001aed1d0
[   47.686516][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   47.686765][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   47.686951][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   47.687154][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.687373][   T12] CR2: 00007f50c705d000 CR3: 000000003174d001 CR4: 0000000000771ef0
[   47.687549][   T12] PKRU: 55555554
[   47.687636][   T12] Call Trace:
[   47.687723][   T12]  <TASK>
[   47.687862][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.688017][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.688159][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   47.688277][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   47.688470][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.688587][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   47.688705][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.688973][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   47.689093][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.689208][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.689328][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.689449][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.689640][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.689760][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.689882][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.690003][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.690197][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.690314][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.690437][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.690560][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.690750][   T12]  kthread (kernel/kthread.c:436)
[   47.690847][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.690998][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.691116][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.691304][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.691451][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.691568][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.691757][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.710813][   T12] ------------[ cut here ]------------
| [   47.710961][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   47.711207][   T12] Modules linked in:
| [   47.711590][   T12] Tainted: [W]=WARN
[   47.711683][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.711845][   T12] Workqueue: netns cleanup_net
[   47.711978][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.712139][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.712587][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   47.712742][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cbb9700 RCX: 1ff4000000018eaf
[   47.712940][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cbb97bc
[   47.713124][   T12] RBP: ff11000005229000 R08: 1fe22000019772f9 R09: ff11000001aed1d0
[   47.713307][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   47.713491][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000522c000
[   47.713683][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   47.713910][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.714064][   T12] CR2: 00007f50c705d000 CR3: 000000003174d001 CR4: 0000000000771ef0
[   47.714250][   T12] PKRU: 55555554
[   47.714343][   T12] Call Trace:
[   47.714435][   T12]  <TASK>
[   47.714500][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   47.714625][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   47.714719][   T12]  netif_close_many (net/core/dev.c:1804)
[   47.714848][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.714977][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.715100][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.715222][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   47.715345][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   47.715499][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   47.715654][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.715779][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.715989][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.716113][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.716234][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   47.716389][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   47.716517][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   47.716642][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   47.716766][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   47.716951][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   47.717076][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   47.717200][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.717321][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.717448][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.717570][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.717693][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.717818][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.717998][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.718125][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.718250][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.718371][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.718501][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.718628][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.718749][   T12]  kthread (kernel/kthread.c:436)
[   47.718895][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.719046][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.719169][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.719293][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.719448][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.719571][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.719694][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.723690][   T12] ------------[ cut here ]------------
| [   47.724008][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   47.724400][   T12] Modules linked in:
| [   47.725012][   T12] Tainted: [W]=WARN
[   47.725158][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.725395][   T12] Workqueue: netns cleanup_net
[   47.725595][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.725854][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.726539][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   47.726773][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cab0ac0 RCX: 1ff4000000018eaf
[   47.727073][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cab0b7c
[   47.727355][   T12] RBP: ff1100000522c000 R08: 1fe2200001956171 R09: ff11000001aed1d0
[   47.727641][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   47.727936][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   47.728215][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   47.728538][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.728764][   T12] CR2: 0000557b8eecdd5c CR3: 000000000fab7002 CR4: 0000000000771ef0
[   47.729062][   T12] PKRU: 55555554
[   47.729200][   T12] Call Trace:
[   47.729337][   T12]  <TASK>
[   47.729436][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   47.729622][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   47.729809][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   47.729966][   T12]  netif_close_many (net/core/dev.c:1804)
[   47.730153][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.730336][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.730520][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.730708][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   47.730910][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   47.731148][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   47.731387][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.731576][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.731812][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.732012][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.732199][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   47.732434][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   47.732628][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   47.732823][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   47.733027][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   47.733219][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   47.733413][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   47.733608][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.733796][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.734003][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.734193][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.734381][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.734577][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.734764][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.734969][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.735166][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.735354][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.735551][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.735747][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.735949][   T12]  kthread (kernel/kthread.c:436)
[   47.736094][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.736325][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.736515][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.736704][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.736949][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.737112][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.737270][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.741804][   T12] ------------[ cut here ]------------
| [   47.741999][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   47.742284][   T12] Modules linked in:
| [   47.742740][   T12] Tainted: [W]=WARN
[   47.742897][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.743092][   T12] Workqueue: netns cleanup_net
[   47.743268][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.743481][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.744005][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   47.744232][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c420740 RCX: 1ff4000000018ed5
[   47.744458][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4207fc
[   47.744678][   T12] RBP: ff11000005229000 R08: 1fe2200001884101 R09: ff11000001aed1d0
[   47.744918][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   47.745138][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   47.745365][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   47.745617][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.745810][   T12] CR2: 00007f8076ecf0a0 CR3: 000000003174d005 CR4: 0000000000771ef0
[   47.746053][   T12] PKRU: 55555554
[   47.746188][   T12] Call Trace:
[   47.746325][   T12]  <TASK>
[   47.746439][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.746642][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.746848][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.747023][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.747189][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   47.747388][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   47.747561][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   47.747728][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   47.747915][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   47.748082][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   47.748250][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.748413][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.748582][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.748748][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.748936][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.749106][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.749272][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.749442][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.749613][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.749779][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.749971][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.750145][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.750310][   T12]  kthread (kernel/kthread.c:436)
[   47.750448][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.750645][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.750813][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.751001][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.751226][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.751395][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.751563][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.754555][   T12] ------------[ cut here ]------------
| [   47.754724][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   47.755666][   T12] Modules linked in:
| [   47.756181][   T12] Tainted: [W]=WARN
[   47.756348][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.756547][   T12] Workqueue: netns cleanup_net
[   47.756720][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.756944][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.757410][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   47.757609][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c4211c0 RCX: 1ff4000000018ed5
[   47.757852][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c42127c
[   47.758082][   T12] RBP: ff1100000522c000 R08: 1fe2200001884251 R09: ff11000001aed1d0
[   47.758304][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   47.758528][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   47.758755][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   47.759137][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.759389][   T12] CR2: 00007f8076ecf0a0 CR3: 000000003174d005 CR4: 0000000000771ef0
[   47.759662][   T12] PKRU: 55555554
[   47.759859][   T12] Call Trace:
[   47.760050][   T12]  <TASK>
[   47.760207][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.760457][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.760694][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.760930][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.761142][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   47.761393][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   47.761605][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   47.761821][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   47.762057][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   47.762281][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   47.762503][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.762717][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.762961][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.763177][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.763392][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.763608][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.763822][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.764123][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.764343][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.764563][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.764781][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.765021][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.765238][   T12]  kthread (kernel/kthread.c:436)
[   47.765442][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.765747][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.766035][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.766302][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.766589][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.766864][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.767132][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.769965][   T12] ------------[ cut here ]------------
| [   47.770136][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   47.770415][   T12] Modules linked in:
| [   47.770884][   T12] Tainted: [W]=WARN
[   47.771038][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.771233][   T12] Workqueue: netns cleanup_net
[   47.771407][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.771610][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.772093][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   47.772289][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c4218c0 RCX: 1ff4000000018ed5
[   47.772511][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c42197c
[   47.772735][   T12] RBP: ff110000090cc000 R08: 1fe2200001884331 R09: ff11000001aed1d0
[   47.772985][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   47.773208][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   47.773440][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   47.773693][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.773909][   T12] CR2: 00007f8076ecf0a0 CR3: 000000003174d005 CR4: 0000000000771ef0
[   47.774132][   T12] PKRU: 55555554
[   47.774276][   T12] Call Trace:
[   47.774414][   T12]  <TASK>
[   47.774525][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.774734][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.774942][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.775111][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.775277][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   47.775475][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   47.775642][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   47.775806][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   47.775999][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   47.776172][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   47.776342][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.776505][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.776675][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.776861][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.777033][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.777201][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.777370][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.777544][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.777715][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.778011][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.778300][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.778572][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.778803][   T12]  kthread (kernel/kthread.c:436)
[   47.779024][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.779286][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.779537][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.779816][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.780080][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.780295][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.780512][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.804395][  T418] ------------[ cut here ]------------
| [   47.804563][  T418] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/418
| [   47.804799][  T418] Modules linked in:
| [   47.805182][  T418] Tainted: [W]=WARN
[   47.805282][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.805449][  T418] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.805617][  T418] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.806089][  T418] RSP: 0018:ffa0000000ed7a80 EFLAGS: 00010286
[   47.806252][  T418] RAX: 00000000ffffffa6 RBX: ff1100000ce1f700 RCX: 1ff40000001daf16
[   47.806449][  T418] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce1f7bc
[   47.806642][  T418] RBP: ff1100000a551000 R08: 1fe22000019c3ef9 R09: ff1100000f722e80
[   47.806840][  T418] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   47.807036][  T418] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a551000
[   47.807234][  T418] FS:  00007fc39e9f4840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   47.807464][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.807627][  T418] CR2: 00007fc39ec00690 CR3: 000000000b8ba004 CR4: 0000000000771ef0
[   47.807821][  T418] PKRU: 55555554
[   47.807934][  T418] Call Trace:
[   47.808035][  T418]  <TASK>
[   47.808103][  T418]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   47.808234][  T418]  ? notifier_call_chain (kernel/notifier.c:85)
[   47.808365][  T418]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   47.808465][  T418]  register_netdevice (net/core/dev.c:11488)
[   47.808596][  T418]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   47.808758][  T418]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   47.808899][  T418]  register_netdev (net/core/dev.c:11552)
[   47.809029][  T418]  loopback_net_init (drivers/net/loopback.c:218)
[   47.809159][  T418]  ops_init (net/core/net_namespace.c:137)
[   47.809258][  T418]  setup_net (net/core/net_namespace.c:446)
[   47.809356][  T418]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   47.809486][  T418]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   47.809616][  T418]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   47.809749][  T418]  copy_net_ns (net/core/net_namespace.c:579)
[   47.809893][  T418]  create_new_namespaces (kernel/nsproxy.c:132)
[   47.810024][  T418]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   47.810154][  T418]  ksys_unshare (kernel/fork.c:3243)
[   47.810286][  T418]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   47.810416][  T418]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   47.810546][  T418]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   47.810679][  T418]  ? __ia32_sys_open (fs/open.c:1374)
[   47.810815][  T418]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   47.810957][  T418]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   47.811087][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.811216][  T418]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   47.811349][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   47.811477][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.811641][  T418] RIP: 0033:0x7fc39ecb6bcb
[   47.811779][  T418] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   47.812253][  T418] RSP: 002b:00007ffe844a5ae8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   47.812449][  T418] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc39ecb6bcb
[   47.812646][  T418] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   47.812846][  T418] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   47.813048][  T418] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe844a7d10
[   47.813240][  T418] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe844a8875
| [   47.817934][  T418] ------------[ cut here ]------------
| [   47.818085][  T418] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/418
| [   47.818314][  T418] Modules linked in:
| [   47.818684][  T418] Tainted: [W]=WARN
[   47.818782][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.818958][  T418] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.819127][  T418] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.819586][  T418] RSP: 0018:ffa0000000ed7918 EFLAGS: 00010286
[   47.819750][  T418] RAX: 00000000ffffffa6 RBX: ff11000011b8fc40 RCX: 1ff40000001daee9
[   47.819954][  T418] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000011b8fcfc
[   47.820148][  T418] RBP: ff11000007911000 R08: 1fe2200002371fa1 R09: ff1100000f722e80
[   47.820343][  T418] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   47.820537][  T418] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007911000
[   47.820731][  T418] FS:  00007fc39e9f4840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   47.820966][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.821133][  T418] CR2: 00007fc39ec00690 CR3: 000000000b8ba004 CR4: 0000000000771ef0
[   47.821328][  T418] PKRU: 55555554
[   47.821426][  T418] Call Trace:
[   47.821525][  T418]  <TASK>
[   47.821592][  T418]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   47.821721][  T418]  ? notifier_call_chain (kernel/notifier.c:85)
[   47.821857][  T418]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   47.821962][  T418]  register_netdevice (net/core/dev.c:11488)
[   47.822095][  T418]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   47.822255][  T418]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   47.822387][  T418]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   47.822517][  T418]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   47.822645][  T418]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   47.822774][  T418]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   47.822923][  T418]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   47.823055][  T418]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   47.823187][  T418]  ops_init (net/core/net_namespace.c:137)
[   47.823286][  T418]  setup_net (net/core/net_namespace.c:446)
[   47.823383][  T418]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   47.823510][  T418]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   47.823642][  T418]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   47.823775][  T418]  copy_net_ns (net/core/net_namespace.c:579)
[   47.823921][  T418]  create_new_namespaces (kernel/nsproxy.c:132)
[   47.824053][  T418]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   47.824183][  T418]  ksys_unshare (kernel/fork.c:3243)
[   47.824313][  T418]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   47.824443][  T418]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   47.824573][  T418]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   47.824703][  T418]  ? __ia32_sys_open (fs/open.c:1374)
[   47.824842][  T418]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   47.824974][  T418]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   47.825106][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.825234][  T418]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   47.825364][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   47.825494][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.825656][  T418] RIP: 0033:0x7fc39ecb6bcb
[   47.825792][  T418] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   47.826256][  T418] RSP: 002b:00007ffe844a5ae8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   47.826453][  T418] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc39ecb6bcb
[   47.826646][  T418] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   47.826842][  T418] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   47.827039][  T418] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe844a7d10
[   47.827229][  T418] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe844a8875
| [   47.838853][  T418] ------------[ cut here ]------------
| [   47.839084][  T418] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/418
| [   47.839367][  T418] Modules linked in:
| [   47.840316][  T418] Tainted: [W]=WARN
[   47.840466][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.840679][  T418] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.840925][  T418] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.841438][  T418] RSP: 0018:ffa0000000ed78f8 EFLAGS: 00010286
[   47.841657][  T418] RAX: 00000000ffffffa6 RBX: ff1100000a7571c0 RCX: 1ff40000001daee5
[   47.841920][  T418] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a75727c
[   47.842182][  T418] RBP: ff1100000928c000 R08: 1fe22000014eae51 R09: ff1100000f722e80
[   47.842422][  T418] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   47.842662][  T418] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000928c000
[   47.842926][  T418] FS:  00007fc39e9f4840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   47.843211][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.843425][  T418] CR2: 00007f8076ecf0a0 CR3: 000000000b8ba003 CR4: 0000000000771ef0
[   47.843667][  T418] PKRU: 55555554
[   47.843811][  T418] Call Trace:
[   47.843978][  T418]  <TASK>
[   47.844094][  T418]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   47.844285][  T418]  ? notifier_call_chain (kernel/notifier.c:85)
[   47.844465][  T418]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   47.844616][  T418]  register_netdevice (net/core/dev.c:11488)
[   47.844796][  T418]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   47.845024][  T418]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   47.845207][  T418]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   47.845387][  T418]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   47.845565][  T418]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   47.845746][  T418]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   47.845953][  T418]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   47.846135][  T418]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   47.846316][  T418]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   47.846497][  T418]  vti_init_net (net/ipv4/ip_vti.c:517)
[   47.846676][  T418]  ops_init (net/core/net_namespace.c:137)
[   47.846826][  T418]  setup_net (net/core/net_namespace.c:446)
[   47.846997][  T418]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   47.847175][  T418]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   47.847360][  T418]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   47.847540][  T418]  copy_net_ns (net/core/net_namespace.c:579)
[   47.847720][  T418]  create_new_namespaces (kernel/nsproxy.c:132)
[   47.847921][  T418]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   47.848100][  T418]  ksys_unshare (kernel/fork.c:3243)
[   47.848279][  T418]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   47.848463][  T418]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   47.848640][  T418]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   47.848820][  T418]  ? __ia32_sys_open (fs/open.c:1374)
[   47.849026][  T418]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   47.849207][  T418]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   47.849385][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.849564][  T418]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   47.849742][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   47.849946][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.850156][  T418] RIP: 0033:0x7fc39ecb6bcb
[   47.850342][  T418] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   47.850863][  T418] RSP: 002b:00007ffe844a5ae8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   47.851118][  T418] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc39ecb6bcb
[   47.851361][  T418] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   47.851602][  T418] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   47.851855][  T418] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe844a7d10
[   47.852107][  T418] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe844a8875
| [   47.854891][   T12] ------------[ cut here ]------------
| [   47.855085][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   47.855443][   T12] Modules linked in:
| [   47.856015][   T12] Tainted: [W]=WARN
[   47.856155][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.856391][   T12] Workqueue: netns cleanup_net
[   47.856569][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.856786][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.857376][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   47.857593][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a7578c0 RCX: 1ff4000000018eed
[   47.857850][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a75797c
[   47.858093][   T12] RBP: ff110000134f9000 R08: 1fe22000014eaf31 R09: ff11000001aed1d0
[   47.858345][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   47.858590][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   47.858850][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   47.859141][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.859343][   T12] CR2: 0000557b8eecdd5c CR3: 000000000fab7002 CR4: 0000000000771ef0
[   47.859588][   T12] PKRU: 55555554
[   47.859713][   T12] Call Trace:
[   47.859852][   T12]  <TASK>
[   47.859946][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.860160][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.860362][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   47.860527][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   47.860691][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.860862][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   47.861034][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.861198][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   47.861360][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.861518][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.861685][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.861855][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.862021][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.862186][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.862353][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.862520][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.862690][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.862862][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.863039][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.863210][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.863373][   T12]  kthread (kernel/kthread.c:436)
[   47.863497][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.863705][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.863876][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.864047][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.864254][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.864420][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.864586][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.867989][   T12] ------------[ cut here ]------------
| [   47.868160][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   47.868490][   T12] Modules linked in:
| [   47.869051][   T12] Tainted: [W]=WARN
[   47.869189][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.869418][   T12] Workqueue: netns cleanup_net
[   47.869610][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.869854][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.870455][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   47.870670][   T12] RAX: 00000000ffffffa6 RBX: ff11000009516740 RCX: 1ff4000000018eed
[   47.870938][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000095167fc
[   47.871190][   T12] RBP: ff11000008d31000 R08: 1fe22000012a2d01 R09: ff11000001aed1d0
[   47.871438][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   47.871702][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   47.871989][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   47.872302][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.872527][   T12] CR2: 0000557b8eecdd5c CR3: 000000000fab7002 CR4: 0000000000771ef0
[   47.872797][   T12] PKRU: 55555554
[   47.872945][   T12] Call Trace:
[   47.873072][   T12]  <TASK>
[   47.873157][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.873357][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.873569][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   47.873742][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   47.873922][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.874096][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   47.874261][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.874434][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   47.874587][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.874742][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.874938][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.875119][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.875296][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.875478][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.875657][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.875850][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.876042][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.876223][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.876404][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.876567][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.876739][   T12]  kthread (kernel/kthread.c:436)
[   47.876870][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.877079][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.877247][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.877409][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.877620][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.877781][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.877970][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.881330][   T12] ------------[ cut here ]------------
| [   47.881490][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   47.881841][   T12] Modules linked in:
| [   47.882400][   T12] Tainted: [W]=WARN
[   47.882538][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.882752][   T12] Workqueue: netns cleanup_net
[   47.882933][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.883151][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.883716][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   47.883914][   T12] RAX: 00000000ffffffa6 RBX: ff110000139ebc40 RCX: 1ff4000000018eed
[   47.884147][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000139ebcfc
[   47.884398][   T12] RBP: ff11000008629000 R08: 1fe220000273d7a1 R09: ff11000001aed1d0
[   47.884630][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   47.884867][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   47.885123][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   47.885416][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.885645][   T12] CR2: 0000557b8eecdd5c CR3: 000000000fab7002 CR4: 0000000000771ef0
[   47.885928][   T12] PKRU: 55555554
[   47.886061][   T12] Call Trace:
[   47.886197][   T12]  <TASK>
[   47.886291][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.886500][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.886710][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   47.886879][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   47.887052][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.887216][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   47.887374][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.887551][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   47.887712][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.887886][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.888057][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.888226][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.888408][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.888590][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.888768][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.888964][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.889150][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.889327][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.889502][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.889687][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.889855][   T12]  kthread (kernel/kthread.c:436)
[   47.889991][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.890191][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.890361][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.890520][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.890734][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.890907][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.891059][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.902895][   T12] ------------[ cut here ]------------
| [   47.903081][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   47.903414][   T12] Modules linked in:
| [   47.903895][   T12] Tainted: [W]=WARN
[   47.904021][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.904206][   T12] Workqueue: netns cleanup_net
[   47.904366][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.904582][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.905167][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   47.905371][   T12] RAX: 00000000ffffffa6 RBX: ff110000139eae40 RCX: 1ff4000000018eed
[   47.905611][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000139eaefc
[   47.905864][   T12] RBP: ff11000007909000 R08: 1fe220000273d5e1 R09: ff11000001aed1d0
[   47.906135][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   47.906407][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   47.906678][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   47.907003][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.907217][   T12] CR2: 0000557b8eecdd5c CR3: 000000000fab7002 CR4: 0000000000771ef0
[   47.907471][   T12] PKRU: 55555554
[   47.907586][   T12] Call Trace:
[   47.907700][   T12]  <TASK>
[   47.907778][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.908003][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.908204][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   47.908383][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   47.908546][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.908718][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   47.908885][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.909069][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   47.909254][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.909432][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.909617][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.909803][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.909993][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.910150][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.910296][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.910455][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.910632][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.910795][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.910988][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.911164][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.911330][   T12]  kthread (kernel/kthread.c:436)
[   47.911455][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.911665][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.911840][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.912026][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.912251][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.912430][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.912607][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.915851][   T12] ------------[ cut here ]------------
| [   47.916016][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   47.916333][   T12] Modules linked in:
| [   47.916809][   T12] Tainted: [W]=WARN
[   47.916936][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.917128][   T12] Workqueue: netns cleanup_net
[   47.917297][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.917508][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.918088][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   47.918319][   T12] RAX: 00000000ffffffa6 RBX: ff110000139eb540 RCX: 1ff4000000018eed
[   47.918586][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000139eb5fc
[   47.918845][   T12] RBP: ff110000058f1000 R08: 1fe220000273d6c1 R09: ff11000001aed1d0
[   47.919105][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   47.919357][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   47.919596][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   47.919867][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.920080][   T12] CR2: 0000557b8eecdd5c CR3: 000000000fab7002 CR4: 0000000000771ef0
[   47.920332][   T12] PKRU: 55555554
[   47.920455][   T12] Call Trace:
[   47.920573][   T12]  <TASK>
[   47.920662][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.920904][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.921136][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   47.921317][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   47.921491][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   47.921648][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   47.921824][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.921994][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   47.922158][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.922332][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.922498][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.922783][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.922953][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.923130][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.923290][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.923577][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.923762][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.923953][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.924141][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.924442][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.924589][   T12]  kthread (kernel/kthread.c:436)
[   47.924712][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.924974][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.925242][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.925409][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.925606][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.925779][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.926038][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.933168][  T418] ------------[ cut here ]------------
| [   47.933316][  T418] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/418
| [   47.933547][  T418] Modules linked in:
| [   47.933932][  T418] Tainted: [W]=WARN
[   47.934031][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.934193][  T418] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.934364][  T418] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.934822][  T418] RSP: 0018:ffa0000000ed7a78 EFLAGS: 00010286
[   47.935001][  T418] RAX: 00000000ffffffa6 RBX: ff1100000b2e78c0 RCX: 1ff40000001daf15
[   47.935196][  T418] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b2e797c
[   47.935390][  T418] RBP: ff110000082b4000 R08: 1fe220000165cf31 R09: ff1100000f722e80
[   47.935583][  T418] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   47.935774][  T418] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000082b4000
[   47.935985][  T418] FS:  00007fc39e9f4840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   47.936216][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.936379][  T418] CR2: 00005588a5830d5c CR3: 000000000b8ba004 CR4: 0000000000771ef0
[   47.936573][  T418] PKRU: 55555554
[   47.936673][  T418] Call Trace:
[   47.936769][  T418]  <TASK>
[   47.936844][  T418]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   47.936981][  T418]  ? notifier_call_chain (kernel/notifier.c:85)
[   47.937110][  T418]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   47.937208][  T418]  register_netdevice (net/core/dev.c:11488)
[   47.937338][  T418]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   47.937497][  T418]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.937627][  T418]  register_netdev (net/core/dev.c:11552)
[   47.937755][  T418]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   47.937900][  T418]  ops_init (net/core/net_namespace.c:137)
[   47.938000][  T418]  setup_net (net/core/net_namespace.c:446)
[   47.938097][  T418]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   47.938225][  T418]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   47.938353][  T418]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   47.938483][  T418]  copy_net_ns (net/core/net_namespace.c:579)
[   47.938615][  T418]  create_new_namespaces (kernel/nsproxy.c:132)
[   47.938749][  T418]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   47.938882][  T418]  ksys_unshare (kernel/fork.c:3243)
[   47.939018][  T418]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   47.939148][  T418]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   47.939276][  T418]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   47.939406][  T418]  ? __ia32_sys_open (fs/open.c:1374)
[   47.939535][  T418]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   47.939666][  T418]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   47.939793][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.939931][  T418]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   47.940059][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   47.940188][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.940348][  T418] RIP: 0033:0x7fc39ecb6bcb
[   47.940483][  T418] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   47.940953][  T418] RSP: 002b:00007ffe844a5ae8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   47.941147][  T418] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc39ecb6bcb
[   47.941340][  T418] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   47.941535][  T418] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   47.941726][  T418] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe844a7d10
[   47.941931][  T418] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe844a8875
| [   47.946146][  T418] ------------[ cut here ]------------
| [   47.946279][  T418] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/418
| [   47.946501][  T418] Modules linked in:
| [   47.946869][  T418] Tainted: [W]=WARN
[   47.946973][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.947136][  T418] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.947305][  T418] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.947766][  T418] RSP: 0018:ffa0000000ed7a68 EFLAGS: 00010286
[   47.947940][  T418] RAX: 00000000ffffffa6 RBX: ff1100000ce1ee40 RCX: 1ff40000001daf13
[   47.948132][  T418] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce1eefc
[   47.948324][  T418] RBP: ff1100000a574000 R08: 1fe22000019c3de1 R09: ff1100000f722e80
[   47.948519][  T418] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   47.948712][  T418] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a574000
[   47.948917][  T418] FS:  00007fc39e9f4840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   47.949145][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.949309][  T418] CR2: 00005588a5830d5c CR3: 000000000b8ba004 CR4: 0000000000771ef0
[   47.949505][  T418] PKRU: 55555554
[   47.949603][  T418] Call Trace:
[   47.949700][  T418]  <TASK>
[   47.949768][  T418]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   47.949906][  T418]  ? notifier_call_chain (kernel/notifier.c:85)
[   47.950037][  T418]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   47.950136][  T418]  register_netdevice (net/core/dev.c:11488)
[   47.950271][  T418]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   47.950436][  T418]  register_netdev (net/core/dev.c:11552)
[   47.950566][  T418]  sit_init_net (net/ipv6/sit.c:1860)
[   47.950696][  T418]  ops_init (net/core/net_namespace.c:137)
[   47.950796][  T418]  setup_net (net/core/net_namespace.c:446)
[   47.950907][  T418]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   47.951038][  T418]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   47.951171][  T418]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   47.951303][  T418]  copy_net_ns (net/core/net_namespace.c:579)
[   47.951435][  T418]  create_new_namespaces (kernel/nsproxy.c:132)
[   47.951567][  T418]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   47.951696][  T418]  ksys_unshare (kernel/fork.c:3243)
[   47.951827][  T418]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   47.951968][  T418]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   47.952098][  T418]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   47.952228][  T418]  ? __ia32_sys_open (fs/open.c:1374)
[   47.952359][  T418]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   47.952489][  T418]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   47.952618][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.952746][  T418]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   47.952878][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   47.953011][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.953175][  T418] RIP: 0033:0x7fc39ecb6bcb
[   47.953309][  T418] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   47.953765][  T418] RSP: 002b:00007ffe844a5ae8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   47.953967][  T418] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc39ecb6bcb
[   47.954159][  T418] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   47.954350][  T418] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   47.954542][  T418] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe844a7d10
[   47.954732][  T418] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe844a8875
| [   47.959383][  T418] ------------[ cut here ]------------
| [   47.959523][  T418] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/418
| [   47.959748][  T418] Modules linked in:
| [   47.960121][  T418] Tainted: [W]=WARN
[   47.960220][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.960383][  T418] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.960552][  T418] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.961025][  T418] RSP: 0018:ffa0000000ed7a78 EFLAGS: 00010286
[   47.961189][  T418] RAX: 00000000ffffffa6 RBX: ff1100000b605540 RCX: 1ff40000001daf15
[   47.961381][  T418] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b6055fc
[   47.961575][  T418] RBP: ff11000009394000 R08: 1fe22000016c0ac1 R09: ff1100000f722e80
[   47.961768][  T418] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   47.961973][  T418] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009394000
[   47.962168][  T418] FS:  00007fc39e9f4840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   47.962397][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.962559][  T418] CR2: 00005588a5830d5c CR3: 000000000b8ba004 CR4: 0000000000771ef0
[   47.962753][  T418] PKRU: 55555554
[   47.962865][  T418] Call Trace:
[   47.962968][  T418]  <TASK>
[   47.963034][  T418]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   47.963169][  T418]  ? notifier_call_chain (kernel/notifier.c:85)
[   47.963301][  T418]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   47.963400][  T418]  register_netdevice (net/core/dev.c:11488)
[   47.963531][  T418]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   47.963694][  T418]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.963826][  T418]  register_netdev (net/core/dev.c:11552)
[   47.963967][  T418]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   47.964097][  T418]  ops_init (net/core/net_namespace.c:137)
[   47.964197][  T418]  setup_net (net/core/net_namespace.c:446)
[   47.964295][  T418]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   47.964425][  T418]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   47.964555][  T418]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   47.964687][  T418]  copy_net_ns (net/core/net_namespace.c:579)
[   47.964819][  T418]  create_new_namespaces (kernel/nsproxy.c:132)
[   47.964963][  T418]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   47.965095][  T418]  ksys_unshare (kernel/fork.c:3243)
[   47.965225][  T418]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   47.965355][  T418]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   47.965485][  T418]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   47.965616][  T418]  ? __ia32_sys_open (fs/open.c:1374)
[   47.965747][  T418]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   47.965882][  T418]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   47.966019][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.966147][  T418]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   47.966277][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   47.966408][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.966568][  T418] RIP: 0033:0x7fc39ecb6bcb
[   47.966704][  T418] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   47.967180][  T418] RSP: 002b:00007ffe844a5ae8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   47.967376][  T418] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc39ecb6bcb
[   47.967569][  T418] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   47.967763][  T418] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   47.967969][  T418] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe844a7d10
[   47.968164][  T418] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe844a8875
| [   47.970303][   T12] ------------[ cut here ]------------
| [   47.970487][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   47.970822][   T12] Modules linked in:
| [   47.971468][   T12] Tainted: [W]=WARN
[   47.971609][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.971849][   T12] Workqueue: netns cleanup_net
[   47.972042][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.972284][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.972917][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   47.973134][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b607000 RCX: 1ff4000000018ed5
[   47.973385][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b6070bc
[   47.973616][   T12] RBP: ff110000176a9000 R08: 1fe22000016c0e19 R09: ff11000001aed1d0
[   47.973850][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   47.974080][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   47.974336][   T12] FS:  0000000000000000(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   47.974621][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.974856][   T12] CR2: 0000557b8eecdd5c CR3: 000000000fab7002 CR4: 0000000000771ef0
[   47.975136][   T12] PKRU: 55555554
[   47.975273][   T12] Call Trace:
[   47.975411][   T12]  <TASK>
[   47.975609][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.975859][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   47.976086][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   47.976254][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   47.976423][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   47.976595][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   47.976744][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   47.976913][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   47.977090][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   47.977264][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   47.977429][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   47.977582][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.977736][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   47.977924][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   47.978085][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   47.978266][   T12]  process_one_work (kernel/workqueue.c:3314)
[   47.978458][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   47.978644][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   47.978846][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.979042][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   47.979223][   T12]  kthread (kernel/kthread.c:436)
[   47.979344][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.979555][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.979722][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.979903][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   47.980117][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.980280][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   47.980457][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   48.026154][  T419] ------------[ cut here ]------------
| [   48.026306][  T419] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/419
| [   48.026535][  T419] Modules linked in:
| [   48.026909][  T419] Tainted: [W]=WARN
[   48.027009][  T419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.027172][  T419] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.027340][  T419] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.027802][  T419] RSP: 0018:ffa0000001127a80 EFLAGS: 00010286
[   48.027977][  T419] RAX: 00000000ffffffa6 RBX: ff1100000b114040 RCX: 1ff4000000224f16
[   48.028171][  T419] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b1140fc
[   48.028364][  T419] RBP: ff110000120fc000 R08: 1fe2200001622821 R09: ff1100000f720b80
[   48.028558][  T419] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   48.028751][  T419] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000120fc000
[   48.028957][  T419] FS:  00007fa8cd03f840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   48.029184][  T419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.029346][  T419] CR2: 0000557b8eecdd5c CR3: 000000000c4a5003 CR4: 0000000000771ef0
[   48.029543][  T419] PKRU: 55555554
[   48.029640][  T419] Call Trace:
[   48.029735][  T419]  <TASK>
[   48.029803][  T419]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.029947][  T419]  ? notifier_call_chain (kernel/notifier.c:85)
[   48.030078][  T419]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.030177][  T419]  register_netdevice (net/core/dev.c:11488)
[   48.030308][  T419]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   48.030471][  T419]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   48.030601][  T419]  register_netdev (net/core/dev.c:11552)
[   48.030730][  T419]  loopback_net_init (drivers/net/loopback.c:218)
[   48.030868][  T419]  ops_init (net/core/net_namespace.c:137)
[   48.030973][  T419]  setup_net (net/core/net_namespace.c:446)
[   48.031072][  T419]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   48.031201][  T419]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   48.031331][  T419]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   48.031463][  T419]  copy_net_ns (net/core/net_namespace.c:579)
[   48.031593][  T419]  create_new_namespaces (kernel/nsproxy.c:132)
[   48.031724][  T419]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   48.031859][  T419]  ksys_unshare (kernel/fork.c:3243)
[   48.032007][  T419]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   48.032141][  T419]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   48.032272][  T419]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   48.032403][  T419]  ? __ia32_sys_open (fs/open.c:1374)
[   48.032532][  T419]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   48.032660][  T419]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   48.032789][  T419]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   48.032962][  T419]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   48.033091][  T419]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   48.033220][  T419]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.033424][  T419] RIP: 0033:0x7fa8cd301bcb
[   48.033622][  T419] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   48.034317][  T419] RSP: 002b:00007ffccf305f28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   48.034607][  T419] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa8cd301bcb
[   48.034802][  T419] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   48.035011][  T419] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   48.035202][  T419] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffccf308150
[   48.035395][  T419] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffccf309875
| [   48.039756][  T419] ------------[ cut here ]------------
| [   48.039903][  T419] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/419
| [   48.040131][  T419] Modules linked in:
| [   48.040498][  T419] Tainted: [W]=WARN
[   48.040596][  T419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.040757][  T419] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.040937][  T419] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.041392][  T419] RSP: 0018:ffa0000001127918 EFLAGS: 00010286
[   48.041554][  T419] RAX: 00000000ffffffa6 RBX: ff1100000cb56c80 RCX: 1ff4000000224ee9
[   48.041746][  T419] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cb56d3c
[   48.041952][  T419] RBP: ff110000058e1000 R08: 1fe220000196ada9 R09: ff1100000f720b80
[   48.042142][  T419] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   48.042334][  T419] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000058e1000
[   48.042530][  T419] FS:  00007fa8cd03f840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   48.042758][  T419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.042931][  T419] CR2: 0000557b8eecdd5c CR3: 000000000c4a5003 CR4: 0000000000771ef0
[   48.043125][  T419] PKRU: 55555554
[   48.043222][  T419] Call Trace:
[   48.043318][  T419]  <TASK>
[   48.043384][  T419]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.043514][  T419]  ? notifier_call_chain (kernel/notifier.c:85)
[   48.043642][  T419]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.043740][  T419]  register_netdevice (net/core/dev.c:11488)
[   48.043876][  T419]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   48.044041][  T419]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   48.044171][  T419]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   48.044300][  T419]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   48.044428][  T419]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   48.044558][  T419]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   48.044686][  T419]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   48.044817][  T419]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   48.044957][  T419]  ops_init (net/core/net_namespace.c:137)
[   48.045056][  T419]  setup_net (net/core/net_namespace.c:446)
[   48.045153][  T419]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   48.045280][  T419]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   48.045410][  T419]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   48.045541][  T419]  copy_net_ns (net/core/net_namespace.c:579)
[   48.045671][  T419]  create_new_namespaces (kernel/nsproxy.c:132)
[   48.045804][  T419]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   48.045945][  T419]  ksys_unshare (kernel/fork.c:3243)
[   48.046073][  T419]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   48.046203][  T419]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   48.046333][  T419]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   48.046465][  T419]  ? __ia32_sys_open (fs/open.c:1374)
[   48.046595][  T419]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   48.046724][  T419]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   48.046859][  T419]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   48.046992][  T419]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   48.047122][  T419]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   48.047250][  T419]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.047411][  T419] RIP: 0033:0x7fa8cd301bcb
[   48.047546][  T419] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   48.048013][  T419] RSP: 002b:00007ffccf305f28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   48.048211][  T419] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa8cd301bcb
[   48.048402][  T419] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   48.048593][  T419] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   48.048785][  T419] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffccf308150
[   48.048989][  T419] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffccf309875
| [   48.057155][  T419] ------------[ cut here ]------------
| [   48.057293][  T419] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/419
| [   48.057525][  T419] Modules linked in:
| [   48.057899][  T419] Tainted: [W]=WARN
[   48.058000][  T419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.058164][  T419] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.058337][  T419] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.058806][  T419] RSP: 0018:ffa00000011278f8 EFLAGS: 00010286
[   48.058993][  T419] RAX: 00000000ffffffa6 RBX: ff11000009518040 RCX: 1ff4000000224ee5
[   48.059189][  T419] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000095180fc
[   48.059385][  T419] RBP: ff110000025e4000 R08: 1fe22000012a3021 R09: ff1100000f720b80
[   48.059581][  T419] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   48.059775][  T419] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000025e4000
[   48.059986][  T419] FS:  00007fa8cd03f840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   48.060221][  T419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.060386][  T419] CR2: 0000557b8eecdd5c CR3: 000000000c4a5003 CR4: 0000000000771ef0
[   48.060582][  T419] PKRU: 55555554
[   48.060681][  T419] Call Trace:
[   48.060779][  T419]  <TASK>
[   48.060850][  T419]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.060989][  T419]  ? notifier_call_chain (kernel/notifier.c:85)
[   48.061123][  T419]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.061222][  T419]  register_netdevice (net/core/dev.c:11488)
[   48.061354][  T419]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   48.061517][  T419]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   48.061651][  T419]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   48.061782][  T419]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   48.061927][  T419]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   48.062059][  T419]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   48.062190][  T419]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   48.062323][  T419]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   48.062454][  T419]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   48.062589][  T419]  vti_init_net (net/ipv4/ip_vti.c:517)
[   48.062720][  T419]  ops_init (net/core/net_namespace.c:137)
[   48.062821][  T419]  setup_net (net/core/net_namespace.c:446)
[   48.062932][  T419]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   48.063065][  T419]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   48.063196][  T419]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   48.063330][  T419]  copy_net_ns (net/core/net_namespace.c:579)
[   48.063463][  T419]  create_new_namespaces (kernel/nsproxy.c:132)
[   48.063597][  T419]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   48.063728][  T419]  ksys_unshare (kernel/fork.c:3243)
[   48.063868][  T419]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   48.064011][  T419]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   48.064142][  T419]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   48.064276][  T419]  ? __ia32_sys_open (fs/open.c:1374)
[   48.064408][  T419]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   48.064538][  T419]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   48.064669][  T419]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   48.064801][  T419]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   48.064946][  T419]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   48.065078][  T419]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.065240][  T419] RIP: 0033:0x7fa8cd301bcb
[   48.065378][  T419] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   48.065848][  T419] RSP: 002b:00007ffccf305f28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   48.066051][  T419] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa8cd301bcb
[   48.066245][  T419] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   48.066440][  T419] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   48.066634][  T419] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffccf308150
[   48.066831][  T419] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffccf309875
| [   48.072112][  T419] ------------[ cut here ]------------
| [   48.072293][  T419] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/419
| [   48.072565][  T419] Modules linked in:
| [   48.073044][  T419] Tainted: [W]=WARN
[   48.073194][  T419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.073403][  T419] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.073619][  T419] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.074144][  T419] RSP: 0018:ffa0000001127a78 EFLAGS: 00010286
[   48.074359][  T419] RAX: 00000000ffffffa6 RBX: ff11000009519700 RCX: 1ff4000000224f15
[   48.074597][  T419] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000095197bc
[   48.074849][  T419] RBP: ff110000020bc000 R08: 1fe22000012a32f9 R09: ff1100000f720b80
[   48.075096][  T419] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   48.075341][  T419] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000020bc000
[   48.075584][  T419] FS:  00007fa8cd03f840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   48.075870][  T419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.076089][  T419] CR2: 00007f8076ecf0a0 CR3: 000000000c4a5004 CR4: 0000000000771ef0
[   48.076335][  T419] PKRU: 55555554
[   48.076480][  T419] Call Trace:
[   48.076623][  T419]  <TASK>
[   48.076737][  T419]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.076938][  T419]  ? notifier_call_chain (kernel/notifier.c:85)
[   48.077117][  T419]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.077265][  T419]  register_netdevice (net/core/dev.c:11488)
[   48.077445][  T419]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   48.077655][  T419]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.077848][  T419]  register_netdev (net/core/dev.c:11552)
[   48.078033][  T419]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   48.078215][  T419]  ops_init (net/core/net_namespace.c:137)
[   48.078363][  T419]  setup_net (net/core/net_namespace.c:446)
[   48.078509][  T419]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   48.078685][  T419]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   48.078876][  T419]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   48.079071][  T419]  copy_net_ns (net/core/net_namespace.c:579)
[   48.079252][  T419]  create_new_namespaces (kernel/nsproxy.c:132)
[   48.079434][  T419]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   48.079614][  T419]  ksys_unshare (kernel/fork.c:3243)
[   48.079791][  T419]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   48.079988][  T419]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   48.080172][  T419]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   48.080353][  T419]  ? __ia32_sys_open (fs/open.c:1374)
[   48.080534][  T419]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   48.080711][  T419]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   48.080909][  T419]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   48.081088][  T419]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   48.081264][  T419]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   48.081442][  T419]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.081655][  T419] RIP: 0033:0x7fa8cd301bcb
[   48.081850][  T419] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   48.082385][  T419] RSP: 002b:00007ffccf305f28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   48.082630][  T419] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa8cd301bcb
[   48.082884][  T419] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   48.083134][  T419] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   48.083373][  T419] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffccf308150
[   48.083617][  T419] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffccf309875
| [   48.088512][  T419] ------------[ cut here ]------------
| [   48.088690][  T419] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/419
| [   48.088988][  T419] Modules linked in:
| [   48.089445][  T419] Tainted: [W]=WARN
[   48.089591][  T419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.089800][  T419] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.090039][  T419] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.090556][  T419] RSP: 0018:ffa0000001127a68 EFLAGS: 00010286
[   48.090767][  T419] RAX: 00000000ffffffa6 RBX: ff11000009a56c80 RCX: 1ff4000000224f13
[   48.091030][  T419] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a56d3c
[   48.091275][  T419] RBP: ff1100000a3ec000 R08: 1fe220000134ada9 R09: ff1100000f720b80
[   48.091516][  T419] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   48.091757][  T419] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a3ec000
[   48.092023][  T419] FS:  00007fa8cd03f840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   48.092301][  T419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.092514][  T419] CR2: 00007f8076ecf0a0 CR3: 000000000c4a5004 CR4: 0000000000771ef0
[   48.092758][  T419] PKRU: 55555554
[   48.092922][  T419] Call Trace:
[   48.093069][  T419]  <TASK>
[   48.093185][  T419]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.093363][  T419]  ? notifier_call_chain (kernel/notifier.c:85)
[   48.093545][  T419]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.093693][  T419]  register_netdevice (net/core/dev.c:11488)
[   48.093896][  T419]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   48.094111][  T419]  register_netdev (net/core/dev.c:11552)
[   48.094290][  T419]  sit_init_net (net/ipv6/sit.c:1860)
[   48.094472][  T419]  ops_init (net/core/net_namespace.c:137)
[   48.094622][  T419]  setup_net (net/core/net_namespace.c:446)
[   48.094775][  T419]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   48.094975][  T419]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   48.095156][  T419]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   48.095339][  T419]  copy_net_ns (net/core/net_namespace.c:579)
[   48.095523][  T419]  create_new_namespaces (kernel/nsproxy.c:132)
[   48.095705][  T419]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   48.095904][  T419]  ksys_unshare (kernel/fork.c:3243)
[   48.096088][  T419]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   48.096265][  T419]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   48.096445][  T419]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   48.096626][  T419]  ? __ia32_sys_open (fs/open.c:1374)
[   48.096808][  T419]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   48.097007][  T419]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   48.097190][  T419]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   48.097376][  T419]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   48.097556][  T419]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   48.097736][  T419]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.097967][  T419] RIP: 0033:0x7fa8cd301bcb
[   48.098154][  T419] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   48.098671][  T419] RSP: 002b:00007ffccf305f28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   48.098934][  T419] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa8cd301bcb
[   48.099178][  T419] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   48.099421][  T419] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   48.099666][  T419] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffccf308150
[   48.099926][  T419] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffccf309875
| [   48.105053][  T419] ------------[ cut here ]------------
| [   48.105234][  T419] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/419
| [   48.105508][  T419] Modules linked in:
| [   48.105989][  T419] Tainted: [W]=WARN
[   48.106136][  T419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.106348][  T419] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.106566][  T419] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.107100][  T419] RSP: 0018:ffa0000001127a78 EFLAGS: 00010286
[   48.107317][  T419] RAX: 00000000ffffffa6 RBX: ff11000006044e40 RCX: 1ff4000000224f15
[   48.107559][  T419] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000006044efc
[   48.107801][  T419] RBP: ff11000004b79000 R08: 1fe2200000c089e1 R09: ff1100000f720b80
[   48.108062][  T419] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   48.108322][  T419] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000004b79000
[   48.108568][  T419] FS:  00007fa8cd03f840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   48.108858][  T419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.109077][  T419] CR2: 00007f8076ecf0a0 CR3: 000000000c4a5004 CR4: 0000000000771ef0
[   48.109322][  T419] PKRU: 55555554
[   48.109468][  T419] Call Trace:
[   48.109616][  T419]  <TASK>
[   48.109731][  T419]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.109934][  T419]  ? notifier_call_chain (kernel/notifier.c:85)
[   48.110114][  T419]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.110263][  T419]  register_netdevice (net/core/dev.c:11488)
[   48.110444][  T419]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   48.110653][  T419]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.110852][  T419]  register_netdev (net/core/dev.c:11552)
[   48.111036][  T419]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   48.111219][  T419]  ops_init (net/core/net_namespace.c:137)
[   48.111369][  T419]  setup_net (net/core/net_namespace.c:446)
[   48.111516][  T419]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   48.111694][  T419]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   48.111886][  T419]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   48.112081][  T419]  copy_net_ns (net/core/net_namespace.c:579)
[   48.112262][  T419]  create_new_namespaces (kernel/nsproxy.c:132)
[   48.112443][  T419]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   48.112622][  T419]  ksys_unshare (kernel/fork.c:3243)
[   48.112802][  T419]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   48.113001][  T419]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   48.113182][  T419]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   48.113365][  T419]  ? __ia32_sys_open (fs/open.c:1374)
[   48.113546][  T419]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   48.113724][  T419]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   48.113922][  T419]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   48.114102][  T419]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   48.114282][  T419]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   48.114464][  T419]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.114675][  T419] RIP: 0033:0x7fa8cd301bcb
[   48.114876][  T419] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   48.115392][  T419] RSP: 002b:00007ffccf305f28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   48.115635][  T419] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa8cd301bcb
[   48.115897][  T419] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   48.116139][  T419] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   48.116379][  T419] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffccf308150
[   48.116619][  T419] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffccf309875
| [   48.211516][  T422] ------------[ cut here ]------------
| [   48.211662][  T422] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/422
| [   48.211912][  T422] Modules linked in:
| [   48.212291][  T422] Tainted: [W]=WARN
[   48.212391][  T422] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.212555][  T422] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.212728][  T422] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.213208][  T422] RSP: 0018:ffa0000001146e30 EFLAGS: 00010286
[   48.213374][  T422] RAX: 00000000ffffffa6 RBX: ff1100000dbbe040 RCX: 1ff4000000228d8c
[   48.213569][  T422] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbbe0fc
[   48.213766][  T422] RBP: ff1100000a349000 R08: 1fe2200001b77c21 R09: ff1100000fba2e80
[   48.213973][  T422] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   48.214169][  T422] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000b924e90
[   48.214368][  T422] FS:  00007f8f2126b840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   48.214600][  T422] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.214765][  T422] CR2: 000000000042ebe0 CR3: 00000000159ac003 CR4: 0000000000771ef0
[   48.214975][  T422] PKRU: 55555554
[   48.215074][  T422] Call Trace:
[   48.215172][  T422]  <TASK>
[   48.215241][  T422]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.215375][  T422]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.215477][  T422]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   48.215640][  T422]  __dev_notify_flags (net/core/dev.c:9787)
[   48.215775][  T422]  ? netif_change_name (net/core/dev.c:1495)
[   48.215915][  T422]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   48.216047][  T422]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   48.216179][  T422]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   48.216311][  T422]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   48.216446][  T422]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.216579][  T422]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   48.216712][  T422]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   48.216846][  T422]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   48.216982][  T422]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   48.217116][  T422]  veth_newlink (drivers/net/veth.c:1871)
[   48.217250][  T422]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   48.217381][  T422]  ? kasan_save_stack (mm/kasan/common.c:57)
[   48.217513][  T422]  ? kasan_save_track (mm/kasan/common.c:78)
[   48.217644][  T422]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   48.217792][  T422]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   48.217935][  T422]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   48.218069][  T422]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   48.218201][  T422]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   48.218336][  T422]  ? rtnl_create_link (net/core/rtnetlink.c:3733)
[   48.218470][  T422]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   48.218604][  T422]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   48.218735][  T422]  ? __dev_get_by_name (net/core/dev.c:883)
[   48.218905][  T422]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   48.219044][  T422]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   48.219181][  T422]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   48.219315][  T422]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.219449][  T422]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.219582][  T422]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.219714][  T422]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   48.219848][  T422]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.219989][  T422]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.220122][  T422]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.220255][  T422]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   48.220389][  T422]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.220521][  T422]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.220653][  T422]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.220787][  T422]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.220928][  T422]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.221061][  T422]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   48.221192][  T422]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.221325][  T422]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   48.221463][  T422]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   48.221594][  T422]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   48.221730][  T422]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   48.221868][  T422]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   48.222004][  T422]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.222136][  T422]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   48.222271][  T422]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   48.222405][  T422]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   48.222541][  T422]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   48.222674][  T422]  ? copy_msghdr_from_user (net/socket.c:2635)
[   48.222807][  T422]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   48.222980][  T422]  ? move_addr_to_kernel (net/socket.c:258)
[   48.223117][  T422]  ___sys_sendmsg (net/socket.c:2752)
[   48.223250][  T422]  ? copy_msghdr_from_user (net/socket.c:2603)
[   48.223389][  T422]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   48.223560][  T422]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   48.223693][  T422]  __sys_sendmsg (net/socket.c:2784)
[   48.223825][  T422]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   48.223969][  T422]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   48.224103][  T422]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.224237][  T422]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   48.224372][  T422]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   48.224503][  T422]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   48.224635][  T422]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.224798][  T422] RIP: 0033:0x7f8f214a508e
[   48.224945][  T422] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   48.225413][  T422] RSP: 002b:00007ffe80fe93a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   48.225614][  T422] RAX: ffffffffffffffda RBX: 00007ffe80fe9b58 RCX: 00007f8f214a508e
[   48.225812][  T422] RDX: 0000000000000000 RSI: 00007ffe80fe9450 RDI: 0000000000000005
[   48.226018][  T422] RBP: 00007ffe80fe93b0 R08: 0000000000000000 R09: 0000000000000000
[   48.226214][  T422] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3df
[   48.226411][  T422] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe80fe9b10
| [   48.233499][  T422] ------------[ cut here ]------------
| [   48.233639][  T422] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/422
| [   48.234194][  T422] Modules linked in:
| [   48.234556][  T422] Tainted: [W]=WARN
[   48.234655][  T422] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.234820][  T422] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.235003][  T422] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.235467][  T422] RSP: 0018:ffa00000011471b0 EFLAGS: 00010286
[   48.235632][  T422] RAX: 00000000ffffffa6 RBX: ff1100000cf8d1c0 RCX: 1ff4000000228dfc
[   48.235828][  T422] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf8d27c
[   48.236032][  T422] RBP: ff110000137c4000 R08: 1fe22000019f1a51 R09: ff1100000fba2e80
[   48.236227][  T422] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   48.236421][  T422] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa8c03b20
[   48.236618][  T422] FS:  00007f8f2126b840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   48.236849][  T422] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.237018][  T422] CR2: 000000000042ebe0 CR3: 00000000159ac003 CR4: 0000000000771ef0
[   48.237213][  T422] PKRU: 55555554
[   48.237312][  T422] Call Trace:
[   48.237410][  T422]  <TASK>
[   48.237477][  T422]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.237610][  T422]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.237711][  T422]  __dev_notify_flags (net/core/dev.c:9787)
[   48.237849][  T422]  ? netif_change_name (net/core/dev.c:1495)
[   48.237986][  T422]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   48.238118][  T422]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   48.238252][  T422]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   48.238385][  T422]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   48.238518][  T422]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   48.238650][  T422]  ? __dev_get_by_name (net/core/dev.c:883)
[   48.238781][  T422]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   48.238925][  T422]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   48.239063][  T422]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   48.239195][  T422]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.239328][  T422]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.239469][  T422]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.239602][  T422]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   48.239733][  T422]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.239874][  T422]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.240012][  T422]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.240143][  T422]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   48.240310][  T422]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.240501][  T422]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.240672][  T422]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.240807][  T422]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.240952][  T422]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.241086][  T422]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   48.241218][  T422]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.241351][  T422]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   48.241486][  T422]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   48.241617][  T422]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   48.241751][  T422]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   48.241893][  T422]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   48.242025][  T422]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.242157][  T422]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   48.242290][  T422]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   48.242422][  T422]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   48.242558][  T422]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   48.242688][  T422]  ? copy_msghdr_from_user (net/socket.c:2635)
[   48.242820][  T422]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   48.242994][  T422]  ? move_addr_to_kernel (net/socket.c:258)
[   48.243131][  T422]  ___sys_sendmsg (net/socket.c:2752)
[   48.243263][  T422]  ? copy_msghdr_from_user (net/socket.c:2603)
[   48.243399][  T422]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   48.243568][  T422]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   48.243701][  T422]  __sys_sendmsg (net/socket.c:2784)
[   48.243837][  T422]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   48.243982][  T422]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   48.244114][  T422]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.244246][  T422]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   48.244377][  T422]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   48.244506][  T422]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   48.244639][  T422]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.244803][  T422] RIP: 0033:0x7f8f214a508e
[   48.244951][  T422] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   48.245418][  T422] RSP: 002b:00007ffe80fe93a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   48.245618][  T422] RAX: ffffffffffffffda RBX: 00007ffe80fe9b58 RCX: 00007f8f214a508e
[   48.245813][  T422] RDX: 0000000000000000 RSI: 00007ffe80fe9450 RDI: 0000000000000005
[   48.246021][  T422] RBP: 00007ffe80fe93b0 R08: 0000000000000000 R09: 0000000000000000
[   48.246216][  T422] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3df
[   48.246414][  T422] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe80fe9b10
| [   48.276263][  T423] ------------[ cut here ]------------
| [   48.276436][  T423] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/423
| [   48.276703][  T423] Modules linked in:
| [   48.277180][  T423] Tainted: [W]=WARN
[   48.277324][  T423] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.277530][  T423] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.277743][  T423] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.278267][  T423] RSP: 0018:ffa0000001157020 EFLAGS: 00010286
[   48.278475][  T423] RAX: 00000000ffffffa6 RBX: ff1100000fc1cc80 RCX: 1ff400000022adca
[   48.278714][  T423] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fc1cd3c
[   48.278975][  T423] RBP: ff110000137c4000 R08: 1fe2200001f839a9 R09: ff1100000f560b58
[   48.279212][  T423] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   48.279451][  T423] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   48.279689][  T423] FS:  00007fd029952840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   48.279979][  T423] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.280190][  T423] CR2: 00007fd029c221a0 CR3: 0000000012e27004 CR4: 0000000000771ef0
[   48.280429][  T423] PKRU: 55555554
[   48.280573][  T423] Call Trace:
[   48.280717][  T423]  <TASK>
[   48.280844][  T423]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.281030][  T423]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.281178][  T423]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   48.281355][  T423]  __dev_notify_flags (net/core/dev.c:9787)
[   48.281532][  T423]  ? netif_change_name (net/core/dev.c:1495)
[   48.281709][  T423]  ? __dev_change_flags (net/core/dev.c:9752)
[   48.281903][  T423]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   48.282078][  T423]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.282254][  T423]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   48.282433][  T423]  netif_change_flags (net/core/dev.c:9820)
[   48.282612][  T423]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   48.282788][  T423]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   48.282988][  T423]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   48.283167][  T423]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   48.283375][  T423]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.283550][  T423]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.283730][  T423]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   48.283922][  T423]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   48.284102][  T423]  ? __kernel_text_address (kernel/extable.c:79)
[   48.284277][  T423]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.284456][  T423]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.284632][  T423]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   48.284808][  T423]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.285007][  T423]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.285182][  T423]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.285356][  T423]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.285532][  T423]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   48.285707][  T423]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   48.285901][  T423]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   48.286078][  T423]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   48.286255][  T423]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   48.286436][  T423]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   48.286615][  T423]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   48.286792][  T423]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.286987][  T423]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.287165][  T423]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.287339][  T423]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   48.287514][  T423]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.287692][  T423]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.287880][  T423]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.288067][  T423]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.288242][  T423]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.288421][  T423]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.288596][  T423]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   48.288770][  T423]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.288963][  T423]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.289140][  T423]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.289320][  T423]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.289495][  T423]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.289674][  T423]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   48.289863][  T423]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.290048][  T423]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   48.290229][  T423]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   48.290403][  T423]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   48.290585][  T423]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   48.290763][  T423]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   48.290957][  T423]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.291138][  T423]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   48.291318][  T423]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   48.291495][  T423]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   48.291672][  T423]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   48.291863][  T423]  ? copy_msghdr_from_user (net/socket.c:2635)
[   48.292049][  T423]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   48.292255][  T423]  ? move_addr_to_kernel (net/socket.c:258)
[   48.292433][  T423]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   48.292609][  T423]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.292788][  T423]  ___sys_sendmsg (net/socket.c:2752)
[   48.292986][  T423]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   48.293196][  T423]  ? copy_msghdr_from_user (net/socket.c:2603)
[   48.293385][  T423]  __sys_sendmsg (net/socket.c:2784)
[   48.293562][  T423]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   48.293735][  T423]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   48.293965][  T423]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   48.294145][  T423]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.294322][  T423]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   48.294498][  T423]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   48.294677][  T423]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   48.294867][  T423]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.295082][  T423] RIP: 0033:0x7fd029b8c08e
[   48.295262][  T423] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   48.295767][  T423] RSP: 002b:00007ffdda7f2540 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   48.296026][  T423] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd029b8c08e
[   48.296265][  T423] RDX: 0000000000000000 RSI: 00007ffdda7f25f0 RDI: 0000000000000005
[   48.296501][  T423] RBP: 00007ffdda7f2550 R08: 0000000000000000 R09: 0000000000000000
[   48.296739][  T423] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3df
[   48.297002][  T423] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdda7f2cc0
| [   48.330692][  T424] ------------[ cut here ]------------
| [   48.330874][  T424] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/424
| [   48.331149][  T424] Modules linked in:
| [   48.331617][  T424] Tainted: [W]=WARN
[   48.331762][  T424] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.331988][  T424] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.332204][  T424] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.332707][  T424] RSP: 0018:ffa0000001167020 EFLAGS: 00010286
[   48.332941][  T424] RAX: 00000000ffffffa6 RBX: ff1100000fc1d700 RCX: 1ff400000022cdca
[   48.333180][  T424] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fc1d7bc
[   48.333422][  T424] RBP: ff1100000a349000 R08: 1fe2200001f83af9 R09: ff1100000f562e58
[   48.333661][  T424] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   48.333922][  T424] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   48.334164][  T424] FS:  00007ff5c5b6c840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   48.334439][  T424] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.334647][  T424] CR2: 000000001464f988 CR3: 00000000026a8006 CR4: 0000000000771ef0
[   48.334905][  T424] PKRU: 55555554
[   48.335050][  T424] Call Trace:
[   48.335193][  T424]  <TASK>
[   48.335307][  T424]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.335487][  T424]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.335634][  T424]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   48.335812][  T424]  __dev_notify_flags (net/core/dev.c:9787)
[   48.336010][  T424]  ? netif_change_name (net/core/dev.c:1495)
[   48.336188][  T424]  ? __dev_change_flags (net/core/dev.c:9752)
[   48.336365][  T424]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   48.336541][  T424]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.336720][  T424]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   48.336924][  T424]  netif_change_flags (net/core/dev.c:9820)
[   48.337103][  T424]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   48.337280][  T424]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   48.337461][  T424]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   48.337639][  T424]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   48.337863][  T424]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.338047][  T424]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.338229][  T424]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   48.338405][  T424]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   48.338582][  T424]  ? __kernel_text_address (kernel/extable.c:79)
[   48.338759][  T424]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.338958][  T424]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.339140][  T424]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   48.339320][  T424]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.339499][  T424]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.339676][  T424]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.339866][  T424]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.340052][  T424]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   48.340231][  T424]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   48.340407][  T424]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   48.340586][  T424]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   48.340763][  T424]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   48.340964][  T424]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   48.341148][  T424]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   48.341326][  T424]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.341502][  T424]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.341677][  T424]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.341865][  T424]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   48.342049][  T424]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.342229][  T424]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.342408][  T424]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.342586][  T424]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.342764][  T424]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.342959][  T424]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.343140][  T424]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   48.343317][  T424]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.343494][  T424]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.343673][  T424]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.343864][  T424]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.344048][  T424]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.344226][  T424]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   48.344402][  T424]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.344579][  T424]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   48.344761][  T424]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   48.344955][  T424]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   48.345139][  T424]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   48.345319][  T424]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   48.345498][  T424]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.345680][  T424]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   48.345872][  T424]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   48.346059][  T424]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   48.346239][  T424]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   48.346418][  T424]  ? copy_msghdr_from_user (net/socket.c:2635)
[   48.346597][  T424]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   48.346805][  T424]  ? move_addr_to_kernel (net/socket.c:258)
[   48.347005][  T424]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   48.347186][  T424]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.347366][  T424]  ___sys_sendmsg (net/socket.c:2752)
[   48.347542][  T424]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   48.347753][  T424]  ? copy_msghdr_from_user (net/socket.c:2603)
[   48.347959][  T424]  __sys_sendmsg (net/socket.c:2784)
[   48.348136][  T424]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   48.348341][  T424]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   48.348554][  T424]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   48.348733][  T424]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.348932][  T424]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   48.349110][  T424]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   48.349290][  T424]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   48.349470][  T424]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.349678][  T424] RIP: 0033:0x7ff5c5da608e
[   48.349874][  T424] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   48.350391][  T424] RSP: 002b:00007ffcd04ca8f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   48.350633][  T424] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff5c5da608e
[   48.350884][  T424] RDX: 0000000000000000 RSI: 00007ffcd04ca9a0 RDI: 0000000000000005
[   48.351131][  T424] RBP: 00007ffcd04ca900 R08: 0000000000000000 R09: 0000000000000000
[   48.351375][  T424] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3df
[   48.351614][  T424] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcd04cb070
| [   48.354001][   T71] ------------[ cut here ]------------
| [   48.354136][   T71] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/71
| [   48.354368][   T71] Modules linked in:
| [   48.354732][   T71] Tainted: [W]=WARN
[   48.354823][   T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.354981][   T71] Workqueue: events_unbound linkwatch_event
[   48.355135][   T71] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.355289][   T71] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.355711][   T71] RSP: 0018:ffa00000004c79e0 EFLAGS: 00010286
[   48.355864][   T71] RAX: 00000000ffffffa6 RBX: ff1100000cf8c580 RCX: 1ff4000000098f02
[   48.356044][   T71] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf8c63c
[   48.356225][   T71] RBP: ff110000137c4000 R08: 1fe22000019f18c9 R09: ff11000009222ea8
[   48.356402][   T71] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   48.356581][   T71] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   48.356760][   T71] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   48.356976][   T71] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.357125][   T71] CR2: 00007f8f21338574 CR3: 000000003174d001 CR4: 0000000000771ef0
[   48.357302][   T71] PKRU: 55555554
[   48.357391][   T71] Call Trace:
[   48.357480][   T71]  <TASK>
[   48.357542][   T71]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.357661][   T71]  ? notifier_call_chain (kernel/notifier.c:85)
[   48.357782][   T71]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.357876][   T71]  netif_state_change (net/core/dev.c:1605)
[   48.358000][   T71]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   48.358152][   T71]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   48.358270][   T71]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   48.358388][   T71]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   48.358507][   T71]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   48.358624][   T71]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   48.358742][   T71]  process_one_work (kernel/workqueue.c:3314)
[   48.358870][   T71]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   48.358992][   T71]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.359115][   T71]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   48.359237][   T71]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   48.359358][   T71]  kthread (kernel/kthread.c:436)
[   48.359448][   T71]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   48.359594][   T71]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.359714][   T71]  ret_from_fork (arch/x86/kernel/process.c:158)
[   48.359840][   T71]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   48.359988][   T71]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   48.360106][   T71]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.360225][   T71]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   48.395526][  T425] ------------[ cut here ]------------
| [   48.395704][  T425] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/425
| [   48.396337][  T425] Modules linked in:
| [   48.396809][  T425] Tainted: [W]=WARN
[   48.396976][  T425] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.397193][  T425] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.397436][  T425] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.397972][  T425] RSP: 0018:ffa0000001167050 EFLAGS: 00010286
[   48.398188][  T425] RAX: 00000000ffffffa6 RBX: ff1100000c445540 RCX: 1ff400000022cdd0
[   48.398430][  T425] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4455fc
[   48.398666][  T425] RBP: ff110000137c4000 R08: 1fe2200001888ac1 R09: ff110000141cd180
[   48.398922][  T425] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   48.399161][  T425] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   48.399403][  T425] FS:  00007fcc87cb6840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   48.399676][  T425] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.399904][  T425] CR2: 00000000169ea988 CR3: 0000000016ed0003 CR4: 0000000000771ef0
[   48.400145][  T425] PKRU: 55555554
[   48.400288][  T425] Call Trace:
[   48.400431][  T425]  <TASK>
[   48.400544][  T425]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.400723][  T425]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   48.400920][  T425]  notifier_call_chain (kernel/notifier.c:85)
[   48.401099][  T425]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   48.401276][  T425]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.401453][  T425]  ? netif_set_group (net/core/dev.c:9947)
[   48.401631][  T425]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   48.401852][  T425]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   48.402040][  T425]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   48.402219][  T425]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   48.402396][  T425]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   48.402602][  T425]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.402778][  T425]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.402974][  T425]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   48.403149][  T425]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   48.403329][  T425]  ? __kernel_text_address (kernel/extable.c:79)
[   48.403506][  T425]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.403685][  T425]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.403872][  T425]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   48.404059][  T425]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.404237][  T425]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.404413][  T425]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.404588][  T425]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.404766][  T425]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   48.404963][  T425]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   48.405138][  T425]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   48.405315][  T425]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   48.405495][  T425]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   48.405674][  T425]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   48.405865][  T425]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.406052][  T425]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.406228][  T425]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.406403][  T425]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   48.406577][  T425]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.406755][  T425]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.406951][  T425]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.407131][  T425]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.407307][  T425]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.407489][  T425]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.407665][  T425]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   48.407853][  T425]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.408037][  T425]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.408212][  T425]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.408388][  T425]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.408562][  T425]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.408739][  T425]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   48.408937][  T425]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.409114][  T425]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   48.409294][  T425]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   48.409469][  T425]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   48.409648][  T425]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   48.409826][  T425]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   48.410022][  T425]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.410201][  T425]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   48.410380][  T425]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   48.410558][  T425]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   48.410737][  T425]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   48.410937][  T425]  ? copy_msghdr_from_user (net/socket.c:2635)
[   48.411112][  T425]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   48.411317][  T425]  ? move_addr_to_kernel (net/socket.c:258)
[   48.411498][  T425]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   48.411675][  T425]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.411866][  T425]  ___sys_sendmsg (net/socket.c:2752)
[   48.412049][  T425]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   48.412256][  T425]  ? copy_msghdr_from_user (net/socket.c:2603)
[   48.412446][  T425]  __sys_sendmsg (net/socket.c:2784)
[   48.412624][  T425]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   48.412800][  T425]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   48.413034][  T425]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   48.413211][  T425]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.413390][  T425]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   48.413582][  T425]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   48.413758][  T425]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   48.413955][  T425]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.414165][  T425] RIP: 0033:0x7fcc87ef008e
[   48.414353][  T425] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   48.414868][  T425] RSP: 002b:00007ffc5c5b0250 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   48.415118][  T425] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fcc87ef008e
[   48.415357][  T425] RDX: 0000000000000000 RSI: 00007ffc5c5b0300 RDI: 0000000000000005
[   48.415596][  T425] RBP: 00007ffc5c5b0260 R08: 0000000000000000 R09: 0000000000000000
[   48.415847][  T425] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3e0
[   48.416095][  T425] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc5c5b09d0
| [   48.445096][  T426] ------------[ cut here ]------------
| [   48.445236][  T426] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/426
| [   48.445457][  T426] Modules linked in:
| [   48.445816][  T426] Tainted: [W]=WARN
[   48.445926][  T426] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.446082][  T426] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.446245][  T426] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.446695][  T426] RSP: 0018:ffa0000001177150 EFLAGS: 00010286
[   48.446862][  T426] RAX: 00000000ffffffa6 RBX: ff1100000c444900 RCX: 1ff400000022edf0
[   48.447055][  T426] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4449bc
[   48.447244][  T426] RBP: ff1100000a349000 R08: 1fe2200001888939 R09: ff110000141cae58
[   48.447434][  T426] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   48.447621][  T426] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012c9a6c0
[   48.447819][  T426] FS:  00007f3a6a701840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   48.448053][  T426] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.448212][  T426] CR2: 00000000004ebb20 CR3: 000000000de96005 CR4: 0000000000771ef0
[   48.448404][  T426] PKRU: 55555554
[   48.448499][  T426] Call Trace:
[   48.448594][  T426]  <TASK>
[   48.448660][  T426]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.448788][  T426]  ? notifier_call_chain (kernel/notifier.c:85)
[   48.448924][  T426]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.449022][  T426]  netif_state_change (net/core/dev.c:1605)
[   48.449151][  T426]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   48.449311][  T426]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   48.449472][  T426]  linkwatch_sync_dev (net/core/link_watch.c:295)
[   48.449599][  T426]  rtnl_getlink (net/core/rtnetlink.c:4273)
[   48.449725][  T426]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.449857][  T426]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.449990][  T426]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   48.450119][  T426]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   48.450245][  T426]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.450372][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.450516][  T426]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.450640][  T426]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.450768][  T426]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   48.451349][  T426]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.451477][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.451607][  T426]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.451735][  T426]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   48.451865][  T426]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   48.451995][  T426]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.452121][  T426]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.452247][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.452376][  T426]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.452501][  T426]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.452628][  T426]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   48.452756][  T426]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.452887][  T426]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   48.453023][  T426]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   48.453148][  T426]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   48.453276][  T426]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   48.453404][  T426]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   48.453533][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.453660][  T426]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   48.453789][  T426]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   48.453929][  T426]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   48.454059][  T426]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   48.454186][  T426]  ? copy_msghdr_from_user (net/socket.c:2635)
[   48.454311][  T426]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   48.454469][  T426]  ? move_addr_to_kernel (net/socket.c:258)
[   48.454595][  T426]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.454724][  T426]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   48.454887][  T426]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.455021][  T426]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   48.455183][  T426]  ___sys_sendmsg (net/socket.c:2752)
[   48.455309][  T426]  ? copy_msghdr_from_user (net/socket.c:2603)
[   48.455437][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.455572][  T426]  ? move_addr_to_user (./include/linux/uaccess.h:236 net/socket.c:302)
[   48.455697][  T426]  ? do_getsockname (net/socket.c:2192)
[   48.455825][  T426]  __sys_sendmsg (net/socket.c:2784)
[   48.455963][  T426]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   48.456094][  T426]  ? __sys_getsockname (net/socket.c:2210)
[   48.456221][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.456351][  T426]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   48.456480][  T426]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   48.456605][  T426]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   48.456731][  T426]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.456900][  T426] RIP: 0033:0x7f3a6a93b08e
[   48.457038][  T426] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   48.457491][  T426] RSP: 002b:00007ffc91ceed40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   48.457683][  T426] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3a6a93b08e
[   48.457877][  T426] RDX: 0000000000000000 RSI: 00007ffc91ceedf0 RDI: 0000000000000006
[   48.458075][  T426] RBP: 00007ffc91ceed50 R08: 0000000000000000 R09: 0000000000000000
[   48.458267][  T426] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3df
[   48.458456][  T426] R13: 00007ffc91ceeea0 R14: 0000000000000000 R15: 0000000000000004
| [   48.466300][  T426] ------------[ cut here ]------------
| [   48.466445][  T426] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/426
| [   48.466682][  T426] Modules linked in:
| [   48.467520][  T426] Tainted: [W]=WARN
[   48.467628][  T426] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.467798][  T426] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.468008][  T426] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.468470][  T426] RSP: 0018:ffa0000001177050 EFLAGS: 00010286
[   48.468653][  T426] RAX: 00000000ffffffa6 RBX: ff1100000f4ff540 RCX: 1ff400000022edd0
[   48.468849][  T426] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f4ff5fc
[   48.469052][  T426] RBP: ff1100000a349000 R08: 1fe2200001e9fec1 R09: ff110000141cae80
[   48.469244][  T426] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[   48.469437][  T426] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[   48.469629][  T426] FS:  00007f3a6a701840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   48.469861][  T426] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.470028][  T426] CR2: 00007f3a6a9d11a0 CR3: 000000000de96005 CR4: 0000000000771ef0
[   48.470222][  T426] PKRU: 55555554
[   48.470318][  T426] Call Trace:
[   48.470413][  T426]  <TASK>
[   48.470479][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.470608][  T426]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   48.470738][  T426]  notifier_call_chain (kernel/notifier.c:85)
[   48.470874][  T426]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   48.471008][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.471137][  T426]  ? netif_set_group (net/core/dev.c:9947)
[   48.471267][  T426]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   48.471429][  T426]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   48.471558][  T426]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   48.471689][  T426]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   48.471818][  T426]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   48.471987][  T426]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.472115][  T426]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.472246][  T426]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   48.472373][  T426]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   48.472501][  T426]  ? __kernel_text_address (kernel/extable.c:79)
[   48.472628][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.472757][  T426]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.472897][  T426]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   48.473026][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.473156][  T426]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.473283][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.473411][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.473538][  T426]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   48.473667][  T426]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   48.473796][  T426]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   48.473940][  T426]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   48.474073][  T426]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   48.474208][  T426]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   48.474338][  T426]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.474466][  T426]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.474593][  T426]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.474720][  T426]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   48.474851][  T426]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.474987][  T426]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.475115][  T426]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.475244][  T426]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.475372][  T426]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.475501][  T426]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   48.475628][  T426]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   48.475755][  T426]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.475892][  T426]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.476020][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.476150][  T426]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.476280][  T426]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   48.476409][  T426]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   48.476537][  T426]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.476665][  T426]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   48.476796][  T426]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   48.476939][  T426]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   48.477070][  T426]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   48.477203][  T426]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   48.477331][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   48.477460][  T426]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   48.477589][  T426]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   48.477718][  T426]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   48.477850][  T426]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   48.477984][  T426]  ? copy_msghdr_from_user (net/socket.c:2635)
[   48.478113][  T426]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   48.478275][  T426]  ? move_addr_to_kernel (net/socket.c:258)
[   48.478405][  T426]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   48.478533][  T426]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   48.478663][  T426]  ___sys_sendmsg (net/socket.c:2752)
[   48.478790][  T426]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   48.478962][  T426]  ? copy_msghdr_from_user (net/socket.c:2603)
[   48.479106][  T426]  __sys_sendmsg (net/socket.c:2784)
[   48.479238][  T426]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   48.479366][  T426]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   48.479528][  T426]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   48.479656][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.479784][  T426]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   48.479923][  T426]  ? irq_exit_rcu (kernel/softirq.c:754)
[   48.480051][  T426]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.480211][  T426] RIP: 0033:0x7f3a6a93b08e
[   48.480345][  T426] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   48.480800][  T426] RSP: 002b:00007ffc91cf09c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   48.481001][  T426] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f3a6a93b08e
[   48.481192][  T426] RDX: 0000000000000000 RSI: 00007ffc91cf0a70 RDI: 0000000000000005
[   48.481383][  T426] RBP: 00007ffc91cf09d0 R08: 0000000000000000 R09: 0000000000000000
[   48.481574][  T426] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3e0
[   48.481766][  T426] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc91cf1140
| [   51.578585][   T12] ------------[ cut here ]------------
| [   51.578798][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   51.579115][   T12] Modules linked in:
| [   51.579571][   T12] Tainted: [W]=WARN
[   51.579709][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.579923][   T12] Workqueue: netns cleanup_net
[   51.580099][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.580306][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.580794][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   51.581021][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cc4e900 RCX: 1ff4000000018eed
[   51.581250][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cc4e9bc
[   51.581472][   T12] RBP: ff11000004b79000 R08: 1fe2200001989d39 R09: ff11000001aed1d0
[   51.581691][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   51.581933][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.582158][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   51.582415][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.582613][   T12] CR2: 00007fdf9b580000 CR3: 0000000009524006 CR4: 0000000000771ef0
[   51.582855][   T12] PKRU: 55555554
[   51.582997][   T12] Call Trace:
[   51.583131][   T12]  <TASK>
[   51.583239][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.583437][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.583658][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.583826][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.584019][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.584183][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.584349][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.584516][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.584682][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.584858][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.585034][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.585201][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.585362][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.585527][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.585690][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.585872][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.586048][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.586211][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.586393][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.586565][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.586730][   T12]  kthread (kernel/kthread.c:436)
[   51.586882][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.587088][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.587252][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.587417][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.587610][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.587775][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.587958][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.606178][   T12] ------------[ cut here ]------------
| [   51.606362][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   51.606640][   T12] Modules linked in:
| [   51.607130][   T12] Tainted: [W]=WARN
[   51.607266][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.607459][   T12] Workqueue: netns cleanup_net
[   51.607631][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.607909][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.608419][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   51.608659][   T12] RAX: 00000000ffffffa6 RBX: ff110000061163c0 RCX: 1ff4000000018eed
[   51.608942][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000611647c
[   51.609221][   T12] RBP: ff1100000a3ec000 R08: 1fe2200000c22c91 R09: ff11000001aed1d0
[   51.609484][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   51.609751][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.610041][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   51.610306][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.610500][   T12] CR2: 00007fdf9b580000 CR3: 0000000009524006 CR4: 0000000000771ef0
[   51.610725][   T12] PKRU: 55555554
[   51.610872][   T12] Call Trace:
[   51.611014][   T12]  <TASK>
[   51.611125][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.611322][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.611519][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.611684][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.611865][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.612034][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.612202][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.612376][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.612544][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.612710][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.612893][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.613069][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.613233][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.613401][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.613567][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.613738][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.613926][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.614092][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.614263][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.614434][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.614599][   T12]  kthread (kernel/kthread.c:436)
[   51.614736][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.614979][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.615146][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.615316][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.615512][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.615677][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.615856][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.619143][   T12] ------------[ cut here ]------------
| [   51.619308][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   51.619584][   T12] Modules linked in:
| [   51.620054][   T12] Tainted: [W]=WARN
[   51.620192][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.620398][   T12] Workqueue: netns cleanup_net
[   51.620571][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.620770][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.621352][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   51.621596][   T12] RAX: 00000000ffffffa6 RBX: ff11000009a57a80 RCX: 1ff4000000018eed
[   51.621878][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a57b3c
[   51.622166][   T12] RBP: ff110000020bc000 R08: 1fe220000134af69 R09: ff11000001aed1d0
[   51.622432][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   51.622699][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.622989][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   51.623286][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.623526][   T12] CR2: 00007fdf9b580000 CR3: 0000000009524006 CR4: 0000000000771ef0
[   51.623793][   T12] PKRU: 55555554
[   51.623991][   T12] Call Trace:
[   51.624241][   T12]  <TASK>
[   51.624394][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.624634][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.624886][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.625104][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.625315][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.625521][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.625802][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.626031][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.626244][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.626453][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.626738][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.627040][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.627249][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.627491][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.627700][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.627960][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.628227][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.628443][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.628611][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.628782][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.628968][   T12]  kthread (kernel/kthread.c:436)
[   51.629110][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.629306][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.629472][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.629639][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.629850][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.630026][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.630194][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.633302][   T12] ------------[ cut here ]------------
| [   51.633466][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   51.633811][   T12] Modules linked in:
| [   51.634285][   T12] Tainted: [W]=WARN
[   51.634432][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.634624][   T12] Workqueue: netns cleanup_net
[   51.634793][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.635012][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.635474][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   51.635667][   T12] RAX: 00000000ffffffa6 RBX: ff11000009a563c0 RCX: 1ff4000000018eed
[   51.635911][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a5647c
[   51.636131][   T12] RBP: ff110000025e4000 R08: 1fe220000134ac91 R09: ff11000001aed1d0
[   51.636353][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   51.636575][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.636796][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   51.637074][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.637273][   T12] CR2: 00007fdf9b580000 CR3: 0000000009524006 CR4: 0000000000771ef0
[   51.637497][   T12] PKRU: 55555554
[   51.637632][   T12] Call Trace:
[   51.637767][   T12]  <TASK>
[   51.637885][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.638092][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.638285][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.638452][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.638618][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.638783][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.638969][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.639138][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.639309][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.639473][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.639640][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.639807][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.639995][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.640166][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.640331][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.640499][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.640668][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.640848][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.641028][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.641202][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.641367][   T12]  kthread (kernel/kthread.c:436)
[   51.641503][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.641697][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.641879][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.642056][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.642255][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.642421][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.642587][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.644998][   T12] ------------[ cut here ]------------
| [   51.645187][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   51.645461][   T12] Modules linked in:
| [   51.646708][   T12] Tainted: [W]=WARN
[   51.646914][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.647157][   T12] Workqueue: netns cleanup_net
[   51.647373][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.647619][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.648150][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   51.648392][   T12] RAX: 00000000ffffffa6 RBX: ff11000009a57540 RCX: 1ff4000000018eed
[   51.648656][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a575fc
[   51.648941][   T12] RBP: ff110000058e1000 R08: 1fe220000134aec1 R09: ff11000001aed1d0
[   51.649207][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   51.649473][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.649740][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   51.650051][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.650288][   T12] CR2: 00007fdf9b580000 CR3: 0000000009524006 CR4: 0000000000771ef0
[   51.650556][   T12] PKRU: 55555554
[   51.650734][   T12] Call Trace:
[   51.650935][   T12]  <TASK>
[   51.651089][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.651331][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.651599][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.651811][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.652039][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.652247][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.652457][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.652668][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.652893][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.653107][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.653326][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.653591][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.653865][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.654130][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.654381][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.654621][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.654788][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.654975][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.655146][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.655318][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.655481][   T12]  kthread (kernel/kthread.c:436)
[   51.655617][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.655808][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.655996][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.656165][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.656358][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.656525][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.656690][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.667233][  T440] ------------[ cut here ]------------
| [   51.667381][  T440] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/440
| [   51.667615][  T440] Modules linked in:
| [   51.667993][  T440] Tainted: [W]=WARN
[   51.668093][  T440] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.668256][  T440] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.668425][  T440] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.668895][  T440] RSP: 0018:ffa0000001117a80 EFLAGS: 00010286
[   51.669065][  T440] RAX: 00000000ffffffa6 RBX: ff1100000ba8d8c0 RCX: 1ff4000000222f16
[   51.669259][  T440] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba8d97c
[   51.669454][  T440] RBP: ff110000137d1000 R08: 1fe2200001751b31 R09: ff1100000f7a8b80
[   51.669645][  T440] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   51.669843][  T440] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000137d1000
[   51.670043][  T440] FS:  00007f6d22bd1840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   51.670273][  T440] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.670435][  T440] CR2: 00007f6d22dd8430 CR3: 000000000ba23003 CR4: 0000000000771ef0
[   51.670631][  T440] PKRU: 55555554
[   51.670728][  T440] Call Trace:
[   51.670824][  T440]  <TASK>
[   51.670898][  T440]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.671034][  T440]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.671166][  T440]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.671266][  T440]  register_netdevice (net/core/dev.c:11488)
[   51.671398][  T440]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.671561][  T440]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   51.671692][  T440]  register_netdev (net/core/dev.c:11552)
[   51.671821][  T440]  loopback_net_init (drivers/net/loopback.c:218)
[   51.671964][  T440]  ops_init (net/core/net_namespace.c:137)
[   51.672063][  T440]  setup_net (net/core/net_namespace.c:446)
[   51.672163][  T440]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.672303][  T440]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.672434][  T440]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.672566][  T440]  copy_net_ns (net/core/net_namespace.c:579)
[   51.672698][  T440]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.672836][  T440]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.672974][  T440]  ksys_unshare (kernel/fork.c:3243)
[   51.673104][  T440]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.673235][  T440]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.673364][  T440]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.673500][  T440]  ? __ia32_sys_open (fs/open.c:1374)
[   51.673631][  T440]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.673760][  T440]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.673958][  T440]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.674175][  T440]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.674308][  T440]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.674437][  T440]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.674598][  T440] RIP: 0033:0x7f6d22e93bcb
[   51.674735][  T440] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.675261][  T440] RSP: 002b:00007ffc9594b1b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.675459][  T440] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6d22e93bcb
[   51.675651][  T440] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.675936][  T440] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.676131][  T440] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc9594d3e0
[   51.676325][  T440] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc9594e875
| [   51.680970][  T440] ------------[ cut here ]------------
| [   51.681101][  T440] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/440
| [   51.681321][  T440] Modules linked in:
| [   51.681681][  T440] Tainted: [W]=WARN
[   51.681779][  T440] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.681957][  T440] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.682126][  T440] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.682579][  T440] RSP: 0018:ffa0000001117918 EFLAGS: 00010286
[   51.682742][  T440] RAX: 00000000ffffffa6 RBX: ff1100000cbb8c80 RCX: 1ff4000000222ee9
[   51.682943][  T440] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cbb8d3c
[   51.683134][  T440] RBP: ff1100000a4cc000 R08: 1fe22000019771a9 R09: ff1100000f7a8b80
[   51.683326][  T440] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   51.683519][  T440] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a4cc000
[   51.683713][  T440] FS:  00007f6d22bd1840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   51.684001][  T440] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.684162][  T440] CR2: 00007f6d22dd8430 CR3: 000000000ba23003 CR4: 0000000000771ef0
[   51.684355][  T440] PKRU: 55555554
[   51.684452][  T440] Call Trace:
[   51.684548][  T440]  <TASK>
[   51.684614][  T440]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.684743][  T440]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.684930][  T440]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.685029][  T440]  register_netdevice (net/core/dev.c:11488)
[   51.685212][  T440]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.685372][  T440]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   51.685503][  T440]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   51.685632][  T440]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   51.685761][  T440]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   51.685950][  T440]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   51.686080][  T440]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   51.686210][  T440]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   51.686341][  T440]  ops_init (net/core/net_namespace.c:137)
[   51.686441][  T440]  setup_net (net/core/net_namespace.c:446)
[   51.686538][  T440]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.686665][  T440]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.686793][  T440]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.686987][  T440]  copy_net_ns (net/core/net_namespace.c:579)
[   51.687118][  T440]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.687249][  T440]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.687380][  T440]  ksys_unshare (kernel/fork.c:3243)
[   51.687507][  T440]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.687636][  T440]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.687764][  T440]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.687954][  T440]  ? __ia32_sys_open (fs/open.c:1374)
[   51.688086][  T440]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.688214][  T440]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.688342][  T440]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.688472][  T440]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.688599][  T440]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.688728][  T440]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.688946][  T440] RIP: 0033:0x7f6d22e93bcb
[   51.689081][  T440] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.689536][  T440] RSP: 002b:00007ffc9594b1b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.689730][  T440] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6d22e93bcb
[   51.689987][  T440] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.690180][  T440] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.690371][  T440] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc9594d3e0
[   51.690561][  T440] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc9594e875
| [   51.695015][  T440] ------------[ cut here ]------------
| [   51.695161][  T440] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/440
| [   51.695388][  T440] Modules linked in:
| [   51.695753][  T440] Tainted: [W]=WARN
[   51.695857][  T440] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.696026][  T440] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.696195][  T440] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.696662][  T440] RSP: 0018:ffa00000011178f8 EFLAGS: 00010286
[   51.696826][  T440] RAX: 00000000ffffffa6 RBX: ff1100000cbb9380 RCX: 1ff4000000222ee5
[   51.697536][  T440] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cbb943c
[   51.697731][  T440] RBP: ff11000012189000 R08: 1fe2200001977289 R09: ff1100000f7a8b80
[   51.697987][  T440] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   51.698180][  T440] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012189000
[   51.698377][  T440] FS:  00007f6d22bd1840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   51.698606][  T440] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.698769][  T440] CR2: 00007f6d22dd8430 CR3: 000000000ba23003 CR4: 0000000000771ef0
[   51.699028][  T440] PKRU: 55555554
[   51.699126][  T440] Call Trace:
[   51.699283][  T440]  <TASK>
[   51.699350][  T440]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.699481][  T440]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.699611][  T440]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.699720][  T440]  register_netdevice (net/core/dev.c:11488)
[   51.699911][  T440]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.700074][  T440]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   51.700205][  T440]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   51.700336][  T440]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   51.700468][  T440]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   51.700600][  T440]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   51.700730][  T440]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   51.700921][  T440]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   51.701055][  T440]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   51.701189][  T440]  vti_init_net (net/ipv4/ip_vti.c:517)
[   51.701320][  T440]  ops_init (net/core/net_namespace.c:137)
[   51.701420][  T440]  setup_net (net/core/net_namespace.c:446)
[   51.701522][  T440]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.701652][  T440]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.701783][  T440]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.701974][  T440]  copy_net_ns (net/core/net_namespace.c:579)
[   51.702107][  T440]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.702239][  T440]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.702372][  T440]  ksys_unshare (kernel/fork.c:3243)
[   51.702503][  T440]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.702634][  T440]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.702765][  T440]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.702955][  T440]  ? __ia32_sys_open (fs/open.c:1374)
[   51.703088][  T440]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.703217][  T440]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.703347][  T440]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.703478][  T440]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.703607][  T440]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.703736][  T440]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.703960][  T440] RIP: 0033:0x7f6d22e93bcb
[   51.704096][  T440] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.704562][  T440] RSP: 002b:00007ffc9594b1b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.704757][  T440] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6d22e93bcb
[   51.705011][  T440] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.705203][  T440] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.705398][  T440] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc9594d3e0
[   51.705592][  T440] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc9594e875
| [   51.707339][   T12] ------------[ cut here ]------------
| [   51.707505][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   51.707787][   T12] Modules linked in:
| [   51.708400][   T12] Tainted: [W]=WARN
[   51.708543][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.708743][   T12] Workqueue: netns cleanup_net
[   51.708939][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.709148][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.709636][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   51.709853][   T12] RAX: 00000000ffffffa6 RBX: ff110000060451c0 RCX: 1ff4000000018eaf
[   51.710093][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000604527c
[   51.710319][   T12] RBP: ff1100000a349000 R08: 1fe2200000c08a51 R09: ff11000001aed1d0
[   51.710549][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   51.710780][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000137c4000
[   51.711033][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   51.711295][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.711496][   T12] CR2: 00007fdf9b580000 CR3: 0000000009524006 CR4: 0000000000771ef0
[   51.711730][   T12] PKRU: 55555554
[   51.711882][   T12] Call Trace:
[   51.712028][   T12]  <TASK>
[   51.712139][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.712312][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.712453][   T12]  netif_close_many (net/core/dev.c:1804)
[   51.712622][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   51.712792][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   51.712986][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   51.713186][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   51.713386][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.713556][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.713754][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.713945][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.714114][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   51.714317][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   51.714488][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   51.714658][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   51.714843][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.715026][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   51.715199][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   51.715371][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.715539][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.715716][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.715909][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.716078][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.716249][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.716419][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.716590][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.716762][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.716955][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.717131][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.717308][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.717481][   T12]  kthread (kernel/kthread.c:436)
[   51.717621][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.717820][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.718013][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.718188][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.718387][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.718557][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.718727][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.727616][   T12] ------------[ cut here ]------------
| [   51.727784][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   51.728091][   T12] Modules linked in:
| [   51.728556][   T12] Tainted: [W]=WARN
[   51.728694][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.728912][   T12] Workqueue: netns cleanup_net
[   51.729088][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.729296][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.729776][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   51.729999][   T12] RAX: 00000000ffffffa6 RBX: ff110000135e18c0 RCX: 1ff4000000018eaf
[   51.730226][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000135e197c
[   51.730454][   T12] RBP: ff110000137c4000 R08: 1fe22000026bc331 R09: ff11000001aed1d0
[   51.730682][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   51.730929][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   51.731161][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   51.731421][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.731621][   T12] CR2: 00007fdf9b580000 CR3: 0000000009524006 CR4: 0000000000771ef0
[   51.731862][   T12] PKRU: 55555554
[   51.732007][   T12] Call Trace:
[   51.732144][   T12]  <TASK>
[   51.732255][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.732426][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.732597][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.732739][   T12]  netif_close_many (net/core/dev.c:1804)
[   51.732929][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   51.733101][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   51.733271][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   51.733473][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   51.733676][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.733860][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.734068][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.734239][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.734409][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   51.734610][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   51.734782][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   51.734975][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   51.735145][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.735319][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   51.735493][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   51.735666][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.735848][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.736029][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.736199][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.736368][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.736539][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.736711][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.736896][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.737078][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.737248][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.737422][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.737597][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.737766][   T12]  kthread (kernel/kthread.c:436)
[   51.737925][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.738124][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.738294][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.738466][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.738665][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.738848][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.739025][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.742329][   T12] ------------[ cut here ]------------
| [   51.742496][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   51.742778][   T12] Modules linked in:
| [   51.743371][   T12] Tainted: [W]=WARN
[   51.743580][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.743818][   T12] Workqueue: netns cleanup_net
[   51.744084][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.744359][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.744890][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   51.745179][   T12] RAX: 00000000ffffffa6 RBX: ff11000011bf8740 RCX: 1ff4000000018ed5
[   51.745460][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000011bf87fc
[   51.745755][   T12] RBP: ff1100000a349000 R08: 1fe220000237f101 R09: ff11000001aed1d0
[   51.746014][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   51.746234][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.746458][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   51.746714][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.746932][   T12] CR2: 00007fdf9b580000 CR3: 0000000009524006 CR4: 0000000000771ef0
[   51.747156][   T12] PKRU: 55555554
[   51.747290][   T12] Call Trace:
[   51.747425][   T12]  <TASK>
[   51.747534][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.747734][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.747947][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.748114][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.748279][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   51.748479][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   51.748648][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   51.748817][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.749010][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   51.749181][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   51.749350][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.749517][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.749685][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.749866][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.750035][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.750202][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.750370][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.750537][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.750707][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.750883][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.751062][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.751232][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.751397][   T12]  kthread (kernel/kthread.c:436)
[   51.751537][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.751729][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.751914][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.752081][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.752274][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.752439][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.752604][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.764250][   T12] ------------[ cut here ]------------
| [   51.764418][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   51.764699][   T12] Modules linked in:
| [   51.765227][   T12] Tainted: [W]=WARN
[   51.765367][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.765566][   T12] Workqueue: netns cleanup_net
[   51.765739][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.765968][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.766446][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   51.766652][   T12] RAX: 00000000ffffffa6 RBX: ff11000011bf8e40 RCX: 1ff4000000018ed5
[   51.766897][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000011bf8efc
[   51.767135][   T12] RBP: ff110000137c4000 R08: 1fe220000237f1e1 R09: ff11000001aed1d0
[   51.767362][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   51.767588][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.767816][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   51.768096][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.768295][   T12] CR2: 00007fdf9b580000 CR3: 0000000009524006 CR4: 0000000000771ef0
[   51.768524][   T12] PKRU: 55555554
[   51.768663][   T12] Call Trace:
[   51.768801][   T12]  <TASK>
[   51.768927][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.769131][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.769331][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.769500][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.769669][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   51.769884][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   51.770064][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   51.770233][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.770402][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   51.770575][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   51.770747][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.770945][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.771120][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.771291][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.771461][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.771631][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.771802][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.771988][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.772162][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.772329][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.772503][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.772677][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.772858][   T12]  kthread (kernel/kthread.c:436)
[   51.773022][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.773221][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.773391][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.773560][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.773756][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.773947][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.774116][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.776799][   T12] ------------[ cut here ]------------
| [   51.777182][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   51.777468][   T12] Modules linked in:
| [   51.777948][   T12] Tainted: [W]=WARN
[   51.778088][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.778288][   T12] Workqueue: netns cleanup_net
[   51.778461][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.778663][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.779161][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   51.779361][   T12] RAX: 00000000ffffffa6 RBX: ff1100000cf8c040 RCX: 1ff4000000018ed5
[   51.779586][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf8c0fc
[   51.779815][   T12] RBP: ff110000120fc000 R08: 1fe22000019f1821 R09: ff11000001aed1d0
[   51.780061][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   51.780285][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.780512][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   51.780770][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.780987][   T12] CR2: 00007fdf9b580000 CR3: 0000000009524006 CR4: 0000000000771ef0
[   51.781215][   T12] PKRU: 55555554
[   51.781351][   T12] Call Trace:
[   51.781491][   T12]  <TASK>
[   51.781601][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.781804][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.782024][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.782195][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.782363][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   51.782563][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   51.782733][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   51.782921][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.783090][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   51.783262][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   51.783434][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.783600][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.783769][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.783957][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.784124][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.784292][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.784465][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.784635][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.784808][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.784997][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.785173][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.785348][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.785523][   T12]  kthread (kernel/kthread.c:436)
[   51.785661][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.785876][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.786055][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.786222][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.786420][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.786588][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.786757][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.791511][  T440] ------------[ cut here ]------------
| [   51.791673][  T440] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/440
| [   51.791917][  T440] Modules linked in:
| [   51.792287][  T440] Tainted: [W]=WARN
[   51.792387][  T440] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.792553][  T440] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.792726][  T440] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.793210][  T440] RSP: 0018:ffa0000001117a78 EFLAGS: 00010286
[   51.793378][  T440] RAX: 00000000ffffffa6 RBX: ff1100000b6043c0 RCX: 1ff4000000222f15
[   51.793576][  T440] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b60447c
[   51.793776][  T440] RBP: ff1100000a4b4000 R08: 1fe22000016c0891 R09: ff1100000f7a8b80
[   51.793982][  T440] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   51.794181][  T440] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a4b4000
[   51.794380][  T440] FS:  00007f6d22bd1840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   51.794614][  T440] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.794780][  T440] CR2: 000055707edb3d5c CR3: 000000000ba23004 CR4: 0000000000771ef0
[   51.794993][  T440] PKRU: 55555554
[   51.795093][  T440] Call Trace:
[   51.795197][  T440]  <TASK>
[   51.795266][  T440]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.795400][  T440]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.795535][  T440]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.795637][  T440]  register_netdevice (net/core/dev.c:11488)
[   51.795771][  T440]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.795949][  T440]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.796085][  T440]  register_netdev (net/core/dev.c:11552)
[   51.796218][  T440]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   51.796352][  T440]  ops_init (net/core/net_namespace.c:137)
[   51.796453][  T440]  setup_net (net/core/net_namespace.c:446)
[   51.796553][  T440]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.796686][  T440]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.796818][  T440]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.796965][  T440]  copy_net_ns (net/core/net_namespace.c:579)
[   51.797099][  T440]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.797234][  T440]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.797369][  T440]  ksys_unshare (kernel/fork.c:3243)
[   51.797504][  T440]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.797638][  T440]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.797770][  T440]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.797913][  T440]  ? __ia32_sys_open (fs/open.c:1374)
[   51.798049][  T440]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.798182][  T440]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.798316][  T440]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.798447][  T440]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.798581][  T440]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.798714][  T440]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.798883][  T440] RIP: 0033:0x7f6d22e93bcb
[   51.799027][  T440] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.799501][  T440] RSP: 002b:00007ffc9594b1b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.799699][  T440] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6d22e93bcb
[   51.799906][  T440] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.800105][  T440] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.800302][  T440] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc9594d3e0
[   51.800500][  T440] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc9594e875
| [   51.817148][  T440] ------------[ cut here ]------------
| [   51.817298][  T440] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/440
| [   51.817528][  T440] Modules linked in:
| [   51.817914][  T440] Tainted: [W]=WARN
[   51.818015][  T440] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.818182][  T440] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.818355][  T440] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.818829][  T440] RSP: 0018:ffa0000001117a68 EFLAGS: 00010286
[   51.819008][  T440] RAX: 00000000ffffffa6 RBX: ff11000009519540 RCX: 1ff4000000222f13
[   51.819205][  T440] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000095195fc
[   51.819402][  T440] RBP: ff1100000986c000 R08: 1fe22000012a32c1 R09: ff1100000f7a8b80
[   51.819598][  T440] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   51.819798][  T440] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000986c000
[   51.820010][  T440] FS:  00007f6d22bd1840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   51.820242][  T440] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.820410][  T440] CR2: 000055707edb3d5c CR3: 000000000ba23004 CR4: 0000000000771ef0
[   51.820611][  T440] PKRU: 55555554
[   51.820709][  T440] Call Trace:
[   51.820808][  T440]  <TASK>
[   51.820881][  T440]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.821021][  T440]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.821156][  T440]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.821258][  T440]  register_netdevice (net/core/dev.c:11488)
[   51.821393][  T440]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.821564][  T440]  register_netdev (net/core/dev.c:11552)
[   51.821696][  T440]  sit_init_net (net/ipv6/sit.c:1860)
[   51.821830][  T440]  ops_init (net/core/net_namespace.c:137)
[   51.821944][  T440]  setup_net (net/core/net_namespace.c:446)
[   51.822046][  T440]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.822182][  T440]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.822316][  T440]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.822459][  T440]  copy_net_ns (net/core/net_namespace.c:579)
[   51.822653][  T440]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.822871][  T440]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.823088][  T440]  ksys_unshare (kernel/fork.c:3243)
[   51.823283][  T440]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.823442][  T440]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.823577][  T440]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.823713][  T440]  ? __ia32_sys_open (fs/open.c:1374)
[   51.823858][  T440]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.823998][  T440]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.824132][  T440]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.824263][  T440]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.824394][  T440]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.824532][  T440]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.824776][  T440] RIP: 0033:0x7f6d22e93bcb
[   51.825015][  T440] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.825501][  T440] RSP: 002b:00007ffc9594b1b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.825704][  T440] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6d22e93bcb
[   51.825919][  T440] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.826120][  T440] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.826354][  T440] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc9594d3e0
[   51.826638][  T440] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc9594e875
| [   51.831562][  T440] ------------[ cut here ]------------
| [   51.831708][  T440] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/440
| [   51.831951][  T440] Modules linked in:
| [   51.832332][  T440] Tainted: [W]=WARN
[   51.832433][  T440] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.832601][  T440] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.832776][  T440] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.833262][  T440] RSP: 0018:ffa0000001117a78 EFLAGS: 00010286
[   51.833433][  T440] RAX: 00000000ffffffa6 RBX: ff11000001f63e00 RCX: 1ff4000000222f15
[   51.833633][  T440] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000001f63ebc
[   51.833842][  T440] RBP: ff11000008c8c000 R08: 1fe22000003ec7d9 R09: ff1100000f7a8b80
[   51.834045][  T440] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   51.834244][  T440] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c8c000
[   51.834444][  T440] FS:  00007f6d22bd1840(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   51.834680][  T440] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.834853][  T440] CR2: 000055707edb3d5c CR3: 000000000ba23004 CR4: 0000000000771ef0
[   51.835062][  T440] PKRU: 55555554
[   51.835163][  T440] Call Trace:
[   51.835262][  T440]  <TASK>
[   51.835332][  T440]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.835468][  T440]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.835603][  T440]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.835705][  T440]  register_netdevice (net/core/dev.c:11488)
[   51.835847][  T440]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.836019][  T440]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.836156][  T440]  register_netdev (net/core/dev.c:11552)
[   51.836289][  T440]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   51.836423][  T440]  ops_init (net/core/net_namespace.c:137)
[   51.836531][  T440]  setup_net (net/core/net_namespace.c:446)
[   51.836632][  T440]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.836766][  T440]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.836911][  T440]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.837047][  T440]  copy_net_ns (net/core/net_namespace.c:579)
[   51.837182][  T440]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.837319][  T440]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.837457][  T440]  ksys_unshare (kernel/fork.c:3243)
[   51.837590][  T440]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.837726][  T440]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.837866][  T440]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.838008][  T440]  ? __ia32_sys_open (fs/open.c:1374)
[   51.838144][  T440]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.838277][  T440]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.838411][  T440]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.838544][  T440]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.838678][  T440]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.838811][  T440]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.838983][  T440] RIP: 0033:0x7f6d22e93bcb
[   51.839122][  T440] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.839600][  T440] RSP: 002b:00007ffc9594b1b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.839799][  T440] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6d22e93bcb
[   51.840008][  T440] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.840207][  T440] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.840409][  T440] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc9594d3e0
[   51.840607][  T440] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc9594e875
| [   51.859229][   T12] ------------[ cut here ]------------
| [   51.859401][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   51.859685][   T12] Modules linked in:
| [   51.860168][   T12] Tainted: [W]=WARN
[   51.860305][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.860500][   T12] Workqueue: netns cleanup_net
[   51.860674][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.860939][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.861407][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   51.861607][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ce1fe00 RCX: 1ff4000000018eed
[   51.861847][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce1febc
[   51.862081][   T12] RBP: ff11000009394000 R08: 1fe22000019c3fd9 R09: ff11000001aed1d0
[   51.862305][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   51.862530][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.862759][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   51.863036][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.863234][   T12] CR2: 00007fdf9b580000 CR3: 0000000009524006 CR4: 0000000000771ef0
[   51.863459][   T12] PKRU: 55555554
[   51.863594][   T12] Call Trace:
[   51.863729][   T12]  <TASK>
[   51.863850][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.864067][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.864264][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.864433][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.864602][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.864768][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.864958][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.865126][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.865298][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.865464][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.865633][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.865800][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.865982][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.866150][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.866318][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.866488][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.866663][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.866844][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.867025][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.867200][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.867366][   T12]  kthread (kernel/kthread.c:436)
[   51.867505][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.867698][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.867882][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.868056][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.868251][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.868418][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.868586][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.871179][   T12] ------------[ cut here ]------------
| [   51.871344][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   51.871626][   T12] Modules linked in:
| [   51.872097][   T12] Tainted: [W]=WARN
[   51.872233][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.872426][   T12] Workqueue: netns cleanup_net
[   51.872598][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.872798][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.873285][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   51.873484][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ce1f380 RCX: 1ff4000000018eed
[   51.873707][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce1f43c
[   51.873950][   T12] RBP: ff1100000a574000 R08: 1fe22000019c3e89 R09: ff11000001aed1d0
[   51.874173][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   51.874392][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.874615][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   51.874879][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.875087][   T12] CR2: 00007fdf9b580000 CR3: 0000000009524006 CR4: 0000000000771ef0
[   51.875310][   T12] PKRU: 55555554
[   51.875444][   T12] Call Trace:
[   51.875579][   T12]  <TASK>
[   51.875686][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.875907][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.876102][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.876271][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.876437][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.876602][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.876770][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.876956][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.877126][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.877290][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.877463][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.877629][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.877793][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.877980][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.878146][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.878316][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.878484][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.878649][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.878824][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.879016][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.879184][   T12]  kthread (kernel/kthread.c:436)
[   51.879322][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.879516][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.879682][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.879862][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.880069][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.880235][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.880403][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.883108][   T12] ------------[ cut here ]------------
| [   51.883276][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   51.883556][   T12] Modules linked in:
| [   51.884298][   T12] Tainted: [W]=WARN
[   51.884436][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.884631][   T12] Workqueue: netns cleanup_net
[   51.884801][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.885018][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.885490][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   51.885688][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ce1f8c0 RCX: 1ff4000000018eed
[   51.885931][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce1f97c
[   51.886152][   T12] RBP: ff110000082b4000 R08: 1fe22000019c3f31 R09: ff11000001aed1d0
[   51.886376][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   51.886604][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.886827][   T12] FS:  0000000000000000(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   51.887103][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.887299][   T12] CR2: 00007fdf9b580000 CR3: 0000000009524006 CR4: 0000000000771ef0
[   51.887528][   T12] PKRU: 55555554
[   51.887664][   T12] Call Trace:
[   51.887800][   T12]  <TASK>
[   51.887926][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.888126][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.888322][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.888494][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.888661][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.888846][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.889022][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.889191][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.889359][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.889525][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.889695][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.889873][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.890045][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.890216][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.890382][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.890554][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.890726][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.890913][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.891086][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.891256][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.891425][   T12]  kthread (kernel/kthread.c:436)
[   51.891561][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.891755][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.891943][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.892111][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.892304][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.892469][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.892638][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.902795][   T12] ------------[ cut here ]------------
| [   51.902945][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   51.903188][   T12] Modules linked in:
| [   51.903555][   T12] Tainted: [W]=WARN
[   51.903646][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.903795][   T12] Workqueue: netns cleanup_net
[   51.903935][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.904091][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.904522][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   51.904675][   T12] RAX: 00000000ffffffa6 RBX: ff11000001f62740 RCX: 1ff4000000018eed
[   51.904860][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000001f627fc
[   51.905045][   T12] RBP: ff1100000928c000 R08: 1fe22000003ec501 R09: ff11000001aed1d0
[   51.905225][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   51.905403][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.905586][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   51.905798][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.905964][   T12] CR2: 00007f6d22e5c2a0 CR3: 000000003174d002 CR4: 0000000000771ef0
[   51.906146][   T12] PKRU: 55555554
[   51.906236][   T12] Call Trace:
[   51.906326][   T12]  <TASK>
[   51.906388][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.906539][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.906692][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.906813][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.906943][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.907065][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.907186][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.907307][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.907428][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.907548][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.907670][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.907791][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.907923][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.908045][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.908165][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.908287][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.908411][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.908532][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.908656][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.908779][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.908910][   T12]  kthread (kernel/kthread.c:436)
[   51.909001][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.909151][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.909271][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.909402][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.909553][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.909673][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.909798][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.911796][   T12] ------------[ cut here ]------------
| [   51.911931][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   51.912167][   T12] Modules linked in:
| [   51.912528][   T12] Tainted: [W]=WARN
[   51.912618][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.912768][   T12] Workqueue: netns cleanup_net
[   51.912903][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.913059][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.913482][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   51.913631][   T12] RAX: 00000000ffffffa6 RBX: ff11000001f62ac0 RCX: 1ff4000000018eed
[   51.913808][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000001f62b7c
[   51.913999][   T12] RBP: ff11000007911000 R08: 1fe22000003ec571 R09: ff11000001aed1d0
[   51.914177][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   51.914363][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.914549][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   51.914757][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.914915][   T12] CR2: 00007f6d22e5c2a0 CR3: 000000003174d002 CR4: 0000000000771ef0
[   51.915095][   T12] PKRU: 55555554
[   51.915185][   T12] Call Trace:
[   51.915276][   T12]  <TASK>
[   51.915338][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.915494][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.915645][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.915765][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.915892][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.916018][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.916138][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.916259][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.916379][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.916497][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.916621][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.916742][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.916865][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.916992][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.917111][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.917233][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.917355][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.917475][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.917601][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.917724][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.917847][   T12]  kthread (kernel/kthread.c:436)
[   51.917941][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.918091][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.918211][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.918331][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.918479][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.918598][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.918732][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.926611][  T441] ------------[ cut here ]------------
| [   51.926764][  T441] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/441
| [   51.927008][  T441] Modules linked in:
| [   51.927382][  T441] Tainted: [W]=WARN
[   51.927484][  T441] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.927681][  T441] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.927862][  T441] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.928338][  T441] RSP: 0018:ffa0000001247a80 EFLAGS: 00010286
[   51.928506][  T441] RAX: 00000000ffffffa6 RBX: ff1100000ce1e900 RCX: 1ff4000000248f16
[   51.928705][  T441] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce1e9bc
[   51.928914][  T441] RBP: ff11000009371000 R08: 1fe22000019c3d39 R09: ff11000012e28b80
[   51.929115][  T441] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   51.929314][  T441] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009371000
[   51.929514][  T441] FS:  00007f28c220f840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   51.929747][  T441] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.929927][  T441] CR2: 00007f28c2416430 CR3: 000000000a253006 CR4: 0000000000771ef0
[   51.930128][  T441] PKRU: 55555554
[   51.930227][  T441] Call Trace:
[   51.930329][  T441]  <TASK>
[   51.930397][  T441]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.930532][  T441]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.930665][  T441]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.930768][  T441]  register_netdevice (net/core/dev.c:11488)
[   51.930911][  T441]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.931079][  T441]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   51.931213][  T441]  register_netdev (net/core/dev.c:11552)
[   51.931346][  T441]  loopback_net_init (drivers/net/loopback.c:218)
[   51.931481][  T441]  ops_init (net/core/net_namespace.c:137)
[   51.931582][  T441]  setup_net (net/core/net_namespace.c:446)
[   51.931685][  T441]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.931818][  T441]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.931963][  T441]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.932099][  T441]  copy_net_ns (net/core/net_namespace.c:579)
[   51.932232][  T441]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.932368][  T441]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.932503][  T441]  ksys_unshare (kernel/fork.c:3243)
[   51.932639][  T441]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.932773][  T441]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.932917][  T441]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.933052][  T441]  ? __ia32_sys_open (fs/open.c:1374)
[   51.933188][  T441]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.933320][  T441]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.933454][  T441]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.933588][  T441]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.933723][  T441]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.933863][  T441]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.934032][  T441] RIP: 0033:0x7f28c24d1bcb
[   51.934169][  T441] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.934644][  T441] RSP: 002b:00007fffb4f8b0b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.934847][  T441] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f28c24d1bcb
[   51.935048][  T441] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.935245][  T441] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.935445][  T441] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffb4f8d2e0
[   51.935643][  T441] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffb4f8e875
| [   51.939821][  T441] ------------[ cut here ]------------
| [   51.940020][  T441] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/441
| [   51.940250][  T441] Modules linked in:
| [   51.940615][  T441] Tainted: [W]=WARN
[   51.940715][  T441] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.940890][  T441] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.941066][  T441] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.941535][  T441] RSP: 0018:ffa0000001247918 EFLAGS: 00010286
[   51.941704][  T441] RAX: 00000000ffffffa6 RBX: ff1100000f911a80 RCX: 1ff4000000248ee9
[   51.941912][  T441] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f911b3c
[   51.942109][  T441] RBP: ff11000006241000 R08: 1fe2200001f22369 R09: ff11000012e28b80
[   51.942305][  T441] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   51.942503][  T441] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000006241000
[   51.942703][  T441] FS:  00007f28c220f840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   51.942948][  T441] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.943115][  T441] CR2: 00007f28c2416430 CR3: 000000000a253006 CR4: 0000000000771ef0
[   51.943317][  T441] PKRU: 55555554
[   51.943416][  T441] Call Trace:
[   51.943520][  T441]  <TASK>
[   51.943589][  T441]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.943721][  T441]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.943859][  T441]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.943965][  T441]  register_netdevice (net/core/dev.c:11488)
[   51.944098][  T441]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.944263][  T441]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   51.944399][  T441]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   51.944534][  T441]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   51.944666][  T441]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   51.944800][  T441]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   51.944945][  T441]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   51.945080][  T441]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   51.945217][  T441]  ops_init (net/core/net_namespace.c:137)
[   51.945320][  T441]  setup_net (net/core/net_namespace.c:446)
[   51.945422][  T441]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.945557][  T441]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.945690][  T441]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.945824][  T441]  copy_net_ns (net/core/net_namespace.c:579)
[   51.945968][  T441]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.946102][  T441]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.946235][  T441]  ksys_unshare (kernel/fork.c:3243)
[   51.946368][  T441]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.946501][  T441]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.946633][  T441]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.946766][  T441]  ? __ia32_sys_open (fs/open.c:1374)
[   51.946920][  T441]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.947052][  T441]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.947183][  T441]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.947316][  T441]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.947448][  T441]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.947582][  T441]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.947745][  T441] RIP: 0033:0x7f28c24d1bcb
[   51.947889][  T441] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.948368][  T441] RSP: 002b:00007fffb4f8b0b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.948569][  T441] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f28c24d1bcb
[   51.948767][  T441] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.948973][  T441] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.949171][  T441] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffb4f8d2e0
[   51.949369][  T441] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffb4f8e875
| [   51.959888][  T441] ------------[ cut here ]------------
| [   51.960038][  T441] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/441
| [   51.960271][  T441] Modules linked in:
| [   51.960642][  T441] Tainted: [W]=WARN
[   51.960744][  T441] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.960923][  T441] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.961096][  T441] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.961571][  T441] RSP: 0018:ffa00000012478f8 EFLAGS: 00010286
[   51.961742][  T441] RAX: 00000000ffffffa6 RBX: ff1100000f9103c0 RCX: 1ff4000000248ee5
[   51.961951][  T441] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f91047c
[   51.962150][  T441] RBP: ff11000009274000 R08: 1fe2200001f22091 R09: ff11000012e28b80
[   51.962348][  T441] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   51.962547][  T441] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009274000
[   51.962748][  T441] FS:  00007f28c220f840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   51.962992][  T441] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.963159][  T441] CR2: 00007f28c2416430 CR3: 000000000a253006 CR4: 0000000000771ef0
[   51.963622][  T441] PKRU: 55555554
[   51.963723][  T441] Call Trace:
[   51.963823][  T441]  <TASK>
[   51.963905][  T441]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.964042][  T441]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.964177][  T441]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.964281][  T441]  register_netdevice (net/core/dev.c:11488)
[   51.964416][  T441]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.964583][  T441]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   51.964720][  T441]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   51.964859][  T441]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   51.965001][  T441]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   51.965135][  T441]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   51.965269][  T441]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   51.965405][  T441]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   51.965541][  T441]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   51.965678][  T441]  vti_init_net (net/ipv4/ip_vti.c:517)
[   51.965813][  T441]  ops_init (net/core/net_namespace.c:137)
[   51.966428][  T441]  setup_net (net/core/net_namespace.c:446)
[   51.966535][  T441]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.966668][  T441]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.966804][  T441]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.967001][  T441]  copy_net_ns (net/core/net_namespace.c:579)
[   51.967139][  T441]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.967276][  T441]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.967415][  T441]  ksys_unshare (kernel/fork.c:3243)
[   51.967551][  T441]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.967686][  T441]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.967821][  T441]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.968018][  T441]  ? __ia32_sys_open (fs/open.c:1374)
[   51.968155][  T441]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.968289][  T441]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.968423][  T441]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.968615][  T441]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.968749][  T441]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.968941][  T441]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.969110][  T441] RIP: 0033:0x7f28c24d1bcb
[   51.969250][  T441] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.969729][  T441] RSP: 002b:00007fffb4f8b0b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.969994][  T441] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f28c24d1bcb
[   51.970194][  T441] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.970396][  T441] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.970600][  T441] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffb4f8d2e0
[   51.970801][  T441] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffb4f8e875
| [   51.973165][   T12] ------------[ cut here ]------------
| [   51.973296][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   51.973539][   T12] Modules linked in:
| [   51.973924][   T12] Tainted: [W]=WARN
[   51.974019][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.974169][   T12] Workqueue: netns cleanup_net
[   51.974296][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.974454][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.974894][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   51.975055][   T12] RAX: 00000000ffffffa6 RBX: ff11000001f631c0 RCX: 1ff4000000018ed5
[   51.975239][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000001f6327c
[   51.975420][   T12] RBP: ff1100000a551000 R08: 1fe22000003ec651 R09: ff11000001aed1d0
[   51.975603][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   51.975782][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.976021][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   51.976234][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.976389][   T12] CR2: 00007f6d22e5c2a0 CR3: 000000003174d002 CR4: 0000000000771ef0
[   51.976579][   T12] PKRU: 55555554
[   51.976669][   T12] Call Trace:
[   51.976759][   T12]  <TASK>
[   51.976821][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.977031][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.977242][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.977367][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   51.977493][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   51.977615][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.977736][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   51.977913][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   51.978037][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   51.978157][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.978291][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   51.978413][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.978535][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.978666][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.978788][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.978972][   T12]  process_one_work (kernel/workqueue.c:3314)
[   51.979099][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.979220][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.979345][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.979471][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.979591][   T12]  kthread (kernel/kthread.c:436)
[   51.979691][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.979909][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.980035][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.980157][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.980308][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.980430][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.980553][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.985463][  T441] ------------[ cut here ]------------
| [   51.985616][  T441] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/441
| [   51.986355][  T441] Modules linked in:
| [   51.986739][  T441] Tainted: [W]=WARN
[   51.986898][  T441] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.987073][  T441] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.987246][  T441] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.987719][  T441] RSP: 0018:ffa0000001247a78 EFLAGS: 00010286
[   51.987951][  T441] RAX: 00000000ffffffa6 RBX: ff11000006117540 RCX: 1ff4000000248f15
[   51.988206][  T441] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000061175fc
[   51.988405][  T441] RBP: ff11000008b91000 R08: 1fe2200000c22ec1 R09: ff11000012e28b80
[   51.988602][  T441] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   51.988799][  T441] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b91000
[   51.989065][  T441] FS:  00007f28c220f840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   51.989299][  T441] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.989465][  T441] CR2: 00007f28c2416430 CR3: 000000000a253006 CR4: 0000000000771ef0
[   51.989666][  T441] PKRU: 55555554
[   51.989765][  T441] Call Trace:
[   51.989926][  T441]  <TASK>
[   51.989998][  T441]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.990132][  T441]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.990266][  T441]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.990368][  T441]  register_netdevice (net/core/dev.c:11488)
[   51.990503][  T441]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.990670][  T441]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.990807][  T441]  register_netdev (net/core/dev.c:11552)
[   51.991002][  T441]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   51.991139][  T441]  ops_init (net/core/net_namespace.c:137)
[   51.991241][  T441]  setup_net (net/core/net_namespace.c:446)
[   51.991342][  T441]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.991474][  T441]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.991607][  T441]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.991742][  T441]  copy_net_ns (net/core/net_namespace.c:579)
[   51.991936][  T441]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.992073][  T441]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.992206][  T441]  ksys_unshare (kernel/fork.c:3243)
[   51.992340][  T441]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.992473][  T441]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.992607][  T441]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.992743][  T441]  ? __ia32_sys_open (fs/open.c:1374)
[   51.992938][  T441]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.993073][  T441]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.993206][  T441]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.993338][  T441]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.993473][  T441]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.993607][  T441]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.993773][  T441] RIP: 0033:0x7f28c24d1bcb
[   51.993974][  T441] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.994449][  T441] RSP: 002b:00007fffb4f8b0b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.994649][  T441] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f28c24d1bcb
[   51.994913][  T441] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.995111][  T441] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.995309][  T441] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffb4f8d2e0
[   51.995508][  T441] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffb4f8e875
| [   52.005464][  T441] ------------[ cut here ]------------
| [   52.005618][  T441] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/441
| [   52.005865][  T441] Modules linked in:
| [   52.006243][  T441] Tainted: [W]=WARN
[   52.006344][  T441] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.006510][  T441] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   52.006684][  T441] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   52.007167][  T441] RSP: 0018:ffa0000001247a68 EFLAGS: 00010286
[   52.007335][  T441] RAX: 00000000ffffffa6 RBX: ff1100000ba8c580 RCX: 1ff4000000248f13
[   52.007536][  T441] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ba8c63c
[   52.007737][  T441] RBP: ff1100000fc84000 R08: 1fe22000017518c9 R09: ff11000012e28b80
[   52.007947][  T441] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   52.008148][  T441] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000fc84000
[   52.008351][  T441] FS:  00007f28c220f840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   52.008584][  T441] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.008751][  T441] CR2: 000055707edb3d5c CR3: 000000000a253004 CR4: 0000000000771ef0
[   52.008966][  T441] PKRU: 55555554
[   52.009066][  T441] Call Trace:
[   52.009165][  T441]  <TASK>
[   52.009234][  T441]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   52.009367][  T441]  ? notifier_call_chain (kernel/notifier.c:85)
[   52.009501][  T441]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   52.009602][  T441]  register_netdevice (net/core/dev.c:11488)
[   52.009738][  T441]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   52.009932][  T441]  register_netdev (net/core/dev.c:11552)
[   52.010067][  T441]  sit_init_net (net/ipv6/sit.c:1860)
[   52.010202][  T441]  ops_init (net/core/net_namespace.c:137)
[   52.010306][  T441]  setup_net (net/core/net_namespace.c:446)
[   52.010407][  T441]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   52.010538][  T441]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   52.010672][  T441]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   52.010806][  T441]  copy_net_ns (net/core/net_namespace.c:579)
[   52.010951][  T441]  create_new_namespaces (kernel/nsproxy.c:132)
[   52.011088][  T441]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   52.011221][  T441]  ksys_unshare (kernel/fork.c:3243)
[   52.011356][  T441]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   52.011492][  T441]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   52.011628][  T441]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   52.011763][  T441]  ? __ia32_sys_open (fs/open.c:1374)
[   52.011909][  T441]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   52.012043][  T441]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   52.012176][  T441]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   52.012307][  T441]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   52.012438][  T441]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   52.012570][  T441]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   52.012737][  T441] RIP: 0033:0x7f28c24d1bcb
[   52.012881][  T441] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   52.013357][  T441] RSP: 002b:00007fffb4f8b0b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   52.013560][  T441] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f28c24d1bcb
[   52.013762][  T441] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   52.014000][  T441] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   52.014214][  T441] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffb4f8d2e0
[   52.014445][  T441] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffb4f8e875
| [   52.018811][  T441] ------------[ cut here ]------------
| [   52.018969][  T441] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/441
| [   52.019202][  T441] Modules linked in:
| [   52.019575][  T441] Tainted: [W]=WARN
[   52.019677][  T441] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.019848][  T441] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   52.020032][  T441] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   52.020504][  T441] RSP: 0018:ffa0000001247a78 EFLAGS: 00010286
[   52.020672][  T441] RAX: 00000000ffffffa6 RBX: ff11000011b8eac0 RCX: 1ff4000000248f15
[   52.020877][  T441] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000011b8eb7c
[   52.021083][  T441] RBP: ff11000013bac000 R08: 1fe2200002371d71 R09: ff11000012e28b80
[   52.021283][  T441] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   52.021481][  T441] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013bac000
[   52.021681][  T441] FS:  00007f28c220f840(0000) GS:ff110000c1347000(0000) knlGS:0000000000000000
[   52.021929][  T441] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.022097][  T441] CR2: 000055707edb3d5c CR3: 000000000a253004 CR4: 0000000000771ef0
[   52.022297][  T441] PKRU: 55555554
[   52.022397][  T441] Call Trace:
[   52.022499][  T441]  <TASK>
[   52.022569][  T441]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   52.022706][  T441]  ? notifier_call_chain (kernel/notifier.c:85)
[   52.022845][  T441]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   52.022955][  T441]  register_netdevice (net/core/dev.c:11488)
[   52.023089][  T441]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   52.023257][  T441]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.023394][  T441]  register_netdev (net/core/dev.c:11552)
[   52.023529][  T441]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   52.023666][  T441]  ops_init (net/core/net_namespace.c:137)
[   52.023769][  T441]  setup_net (net/core/net_namespace.c:446)
[   52.023875][  T441]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   52.024013][  T441]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   52.024146][  T441]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   52.024282][  T441]  copy_net_ns (net/core/net_namespace.c:579)
[   52.024416][  T441]  create_new_namespaces (kernel/nsproxy.c:132)
[   52.024553][  T441]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   52.024689][  T441]  ksys_unshare (kernel/fork.c:3243)
[   52.024823][  T441]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   52.024967][  T441]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   52.025100][  T441]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   52.025234][  T441]  ? __ia32_sys_open (fs/open.c:1374)
[   52.025368][  T441]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   52.025501][  T441]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   52.025636][  T441]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   52.025770][  T441]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   52.025916][  T441]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   52.026050][  T441]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   52.026214][  T441] RIP: 0033:0x7f28c24d1bcb
[   52.026353][  T441] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   52.026830][  T441] RSP: 002b:00007fffb4f8b0b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   52.027042][  T441] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f28c24d1bcb
[   52.027239][  T441] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   52.027437][  T441] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   52.027634][  T441] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffb4f8d2e0
[   52.027838][  T441] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffb4f8e875
| [   52.130324][  T444] ------------[ cut here ]------------
| [   52.130493][  T444] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/444
| [   52.130736][  T444] Modules linked in:
| [   52.131129][  T444] Tainted: [W]=WARN
[   52.131233][  T444] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.131404][  T444] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   52.131584][  T444] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   52.132080][  T444] RSP: 0018:ffa0000001266e30 EFLAGS: 00010286
[   52.132253][  T444] RAX: 00000000ffffffa6 RBX: ff11000011b8fa80 RCX: 1ff400000024cd8c
[   52.132460][  T444] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000011b8fb3c
[   52.132665][  T444] RBP: ff11000004c41000 R08: 1fe2200002371f69 R09: ff1100000c3e5180
[   52.132875][  T444] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   52.133079][  T444] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000be57510
[   52.133286][  T444] FS:  00007f5c9619f840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   52.133528][  T444] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.133700][  T444] CR2: 000000000042ebe0 CR3: 000000000cef5005 CR4: 0000000000771ef0
[   52.133915][  T444] PKRU: 55555554
[   52.134019][  T444] Call Trace:
[   52.134122][  T444]  <TASK>
[   52.134193][  T444]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   52.134334][  T444]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   52.134438][  T444]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   52.134610][  T444]  __dev_notify_flags (net/core/dev.c:9787)
[   52.134749][  T444]  ? netif_change_name (net/core/dev.c:1495)
[   52.134892][  T444]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   52.135034][  T444]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   52.135170][  T444]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   52.135311][  T444]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   52.135450][  T444]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.135587][  T444]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   52.135724][  T444]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   52.135865][  T444]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   52.136006][  T444]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   52.136146][  T444]  veth_newlink (drivers/net/veth.c:1871)
[   52.136285][  T444]  ? veth_poll_controller (drivers/net/veth.c:1470)
[   52.136420][  T444]  ? kasan_save_stack (mm/kasan/common.c:57)
[   52.136561][  T444]  ? kasan_save_track (mm/kasan/common.c:78)
[   52.136697][  T444]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   52.136855][  T444]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   52.136998][  T444]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   52.137136][  T444]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   52.137273][  T444]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   52.137410][  T444]  ? rtnl_create_link (net/core/rtnetlink.c:3733)
[   52.137548][  T444]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   52.137685][  T444]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   52.137822][  T444]  ? __dev_get_by_name (net/core/dev.c:883)
[   52.137970][  T444]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   52.138113][  T444]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   52.138254][  T444]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   52.138392][  T444]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.138529][  T444]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.138666][  T444]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.138803][  T444]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   52.138950][  T444]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.139098][  T444]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.139242][  T444]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.139379][  T444]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   52.139513][  T444]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.139649][  T444]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.139785][  T444]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.139934][  T444]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.140072][  T444]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.140208][  T444]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   52.140344][  T444]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.140482][  T444]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   52.140620][  T444]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   52.140757][  T444]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   52.140905][  T444]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   52.141047][  T444]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   52.141184][  T444]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.141323][  T444]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   52.141462][  T444]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   52.141600][  T444]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   52.141738][  T444]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   52.141880][  T444]  ? copy_msghdr_from_user (net/socket.c:2635)
[   52.142019][  T444]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   52.142189][  T444]  ? move_addr_to_kernel (net/socket.c:258)
[   52.142329][  T444]  ___sys_sendmsg (net/socket.c:2752)
[   52.142468][  T444]  ? copy_msghdr_from_user (net/socket.c:2603)
[   52.142609][  T444]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   52.142785][  T444]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   52.142932][  T444]  __sys_sendmsg (net/socket.c:2784)
[   52.143072][  T444]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   52.143218][  T444]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   52.143355][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.143499][  T444]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   52.143637][  T444]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   52.143775][  T444]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   52.143921][  T444]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   52.144093][  T444] RIP: 0033:0x7f5c963d908e
[   52.144239][  T444] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   52.144727][  T444] RSP: 002b:00007ffc1b6f2c80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   52.144944][  T444] RAX: ffffffffffffffda RBX: 00007ffc1b6f3438 RCX: 00007f5c963d908e
[   52.145150][  T444] RDX: 0000000000000000 RSI: 00007ffc1b6f2d30 RDI: 0000000000000005
[   52.145354][  T444] RBP: 00007ffc1b6f2c90 R08: 0000000000000000 R09: 0000000000000000
[   52.145561][  T444] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3e3
[   52.145765][  T444] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc1b6f33f0
| [   52.153375][  T444] ------------[ cut here ]------------
| [   52.153530][  T444] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/444
| [   52.153764][  T444] Modules linked in:
| [   52.154659][  T444] Tainted: [W]=WARN
[   52.154761][  T444] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.154995][  T444] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   52.155234][  T444] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   52.155715][  T444] RSP: 0018:ffa00000012671b0 EFLAGS: 00010286
[   52.155945][  T444] RAX: 00000000ffffffa6 RBX: ff1100000f98b380 RCX: 1ff400000024cdfc
[   52.156148][  T444] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f98b43c
[   52.156349][  T444] RBP: ff11000004c44000 R08: 1fe2200001f31689 R09: ff1100000c3e5180
[   52.156550][  T444] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   52.156750][  T444] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa8c03b20
[   52.157016][  T444] FS:  00007f5c9619f840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   52.157250][  T444] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.157420][  T444] CR2: 000000000042ebe0 CR3: 000000000cef5005 CR4: 0000000000771ef0
[   52.157624][  T444] PKRU: 55555554
[   52.157724][  T444] Call Trace:
[   52.157826][  T444]  <TASK>
[   52.157953][  T444]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   52.158090][  T444]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   52.158194][  T444]  __dev_notify_flags (net/core/dev.c:9787)
[   52.158332][  T444]  ? netif_change_name (net/core/dev.c:1495)
[   52.158469][  T444]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   52.158605][  T444]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   52.158741][  T444]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   52.158937][  T444]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   52.159073][  T444]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   52.159208][  T444]  ? __dev_get_by_name (net/core/dev.c:883)
[   52.159343][  T444]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   52.159482][  T444]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   52.159620][  T444]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   52.159756][  T444]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.159949][  T444]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.160086][  T444]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.160219][  T444]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   52.160352][  T444]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.160496][  T444]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.160631][  T444]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.160767][  T444]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   52.160967][  T444]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.161106][  T444]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.161240][  T444]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.161376][  T444]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.161510][  T444]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.161647][  T444]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   52.161785][  T444]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.161979][  T444]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   52.162117][  T444]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   52.162251][  T444]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   52.162388][  T444]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   52.162528][  T444]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   52.162665][  T444]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.162801][  T444]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   52.162996][  T444]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   52.163135][  T444]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   52.163272][  T444]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   52.163407][  T444]  ? copy_msghdr_from_user (net/socket.c:2635)
[   52.163541][  T444]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   52.163709][  T444]  ? move_addr_to_kernel (net/socket.c:258)
[   52.163911][  T444]  ___sys_sendmsg (net/socket.c:2752)
[   52.164047][  T444]  ? copy_msghdr_from_user (net/socket.c:2603)
[   52.164185][  T444]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   52.164357][  T444]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   52.164496][  T444]  __sys_sendmsg (net/socket.c:2784)
[   52.164631][  T444]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   52.164771][  T444]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   52.164966][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.165101][  T444]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   52.165234][  T444]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   52.165368][  T444]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   52.165504][  T444]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   52.165671][  T444] RIP: 0033:0x7f5c963d908e
[   52.165812][  T444] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   52.166357][  T444] RSP: 002b:00007ffc1b6f2c80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   52.166570][  T444] RAX: ffffffffffffffda RBX: 00007ffc1b6f3438 RCX: 00007f5c963d908e
[   52.166771][  T444] RDX: 0000000000000000 RSI: 00007ffc1b6f2d30 RDI: 0000000000000005
[   52.167038][  T444] RBP: 00007ffc1b6f2c90 R08: 0000000000000000 R09: 0000000000000000
[   52.167240][  T444] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3e3
[   52.167441][  T444] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc1b6f33f0
| [   52.196334][  T445] ------------[ cut here ]------------
| [   52.196530][  T445] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/445
| [   52.196806][  T445] Modules linked in:
| [   52.197703][  T445] Tainted: [W]=WARN
[   52.197865][  T445] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.198081][  T445] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   52.198304][  T445] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   52.198817][  T445] RSP: 0018:ffa0000001117020 EFLAGS: 00010286
[   52.199053][  T445] RAX: 00000000ffffffa6 RBX: ff1100000f98ba80 RCX: 1ff4000000222dca
[   52.199299][  T445] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f98bb3c
[   52.199539][  T445] RBP: ff11000004c44000 R08: 1fe2200001f31769 R09: ff1100000dda0b58
[   52.199780][  T445] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   52.200046][  T445] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   52.200292][  T445] FS:  00007efc7823a840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   52.200568][  T445] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.200780][  T445] CR2: 000000003dfd5988 CR3: 00000000119db006 CR4: 0000000000771ef0
[   52.201049][  T445] PKRU: 55555554
[   52.201194][  T445] Call Trace:
[   52.201339][  T445]  <TASK>
[   52.201456][  T445]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   52.201638][  T445]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   52.201785][  T445]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   52.201983][  T445]  __dev_notify_flags (net/core/dev.c:9787)
[   52.202165][  T445]  ? netif_change_name (net/core/dev.c:1495)
[   52.202344][  T445]  ? __dev_change_flags (net/core/dev.c:9752)
[   52.202528][  T445]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   52.202706][  T445]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.202908][  T445]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   52.203091][  T445]  netif_change_flags (net/core/dev.c:9820)
[   52.203272][  T445]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   52.203452][  T445]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   52.203638][  T445]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   52.203820][  T445]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   52.204052][  T445]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   52.204230][  T445]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.204408][  T445]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   52.204588][  T445]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   52.204768][  T445]  ? __kernel_text_address (kernel/extable.c:79)
[   52.204974][  T445]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.205159][  T445]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.205340][  T445]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   52.205525][  T445]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.205706][  T445]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   52.205897][  T445]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.206086][  T445]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.206271][  T445]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   52.206450][  T445]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   52.206629][  T445]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   52.206810][  T445]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   52.207015][  T445]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   52.207203][  T445]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   52.207386][  T445]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   52.207567][  T445]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.207749][  T445]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.207953][  T445]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.208135][  T445]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   52.208325][  T445]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.208510][  T445]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.208687][  T445]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.208878][  T445]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.209067][  T445]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.209247][  T445]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.209425][  T445]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   52.209602][  T445]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.209778][  T445]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.209975][  T445]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.210155][  T445]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.210331][  T445]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.210512][  T445]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   52.210687][  T445]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.210877][  T445]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   52.211064][  T445]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   52.211239][  T445]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   52.211416][  T445]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   52.211597][  T445]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   52.211773][  T445]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.211976][  T445]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   52.212156][  T445]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   52.212334][  T445]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   52.212513][  T445]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   52.212690][  T445]  ? copy_msghdr_from_user (net/socket.c:2635)
[   52.212879][  T445]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   52.213094][  T445]  ? move_addr_to_kernel (net/socket.c:258)
[   52.213276][  T445]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   52.213454][  T445]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.213632][  T445]  ___sys_sendmsg (net/socket.c:2752)
[   52.213808][  T445]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   52.214038][  T445]  ? copy_msghdr_from_user (net/socket.c:2603)
[   52.214228][  T445]  __sys_sendmsg (net/socket.c:2784)
[   52.214406][  T445]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   52.214584][  T445]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   52.214796][  T445]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   52.214990][  T445]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.215170][  T445]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   52.215346][  T445]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   52.215528][  T445]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   52.215704][  T445]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   52.215930][  T445] RIP: 0033:0x7efc7847408e
[   52.216116][  T445] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   52.216621][  T445] RSP: 002b:00007ffd942f1e50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   52.216875][  T445] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007efc7847408e
[   52.217122][  T445] RDX: 0000000000000000 RSI: 00007ffd942f1f00 RDI: 0000000000000005
[   52.217361][  T445] RBP: 00007ffd942f1e60 R08: 0000000000000000 R09: 0000000000000000
[   52.217600][  T445] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3e3
[   52.217851][  T445] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd942f25d0
| [   52.246235][  T446] ------------[ cut here ]------------
| [   52.246380][  T446] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/446
| [   52.246604][  T446] Modules linked in:
| [   52.246980][  T446] Tainted: [W]=WARN
[   52.247076][  T446] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.247235][  T446] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   52.247403][  T446] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   52.247863][  T446] RSP: 0018:ffa0000001267020 EFLAGS: 00010286
[   52.248030][  T446] RAX: 00000000ffffffa6 RBX: ff1100000fc1d380 RCX: 1ff400000024cdca
[   52.248220][  T446] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fc1d43c
[   52.248410][  T446] RBP: ff11000004c41000 R08: 1fe2200001f83a89 R09: ff11000012daae58
[   52.248602][  T446] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   52.248791][  T446] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   52.249004][  T446] FS:  00007f92b6b62840(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   52.249227][  T446] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.249386][  T446] CR2: 00007f92b6e321a0 CR3: 000000000cef5002 CR4: 0000000000771ef0
[   52.249579][  T446] PKRU: 55555554
[   52.249674][  T446] Call Trace:
[   52.249772][  T446]  <TASK>
[   52.249843][  T446]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   52.249980][  T446]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   52.250077][  T446]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   52.250205][  T446]  __dev_notify_flags (net/core/dev.c:9787)
[   52.250334][  T446]  ? netif_change_name (net/core/dev.c:1495)
[   52.250466][  T446]  ? __dev_change_flags (net/core/dev.c:9752)
[   52.250595][  T446]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   52.250723][  T446]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.250858][  T446]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   52.250993][  T446]  netif_change_flags (net/core/dev.c:9820)
[   52.251122][  T446]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   52.251250][  T446]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   52.251380][  T446]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   52.251510][  T446]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   52.251669][  T446]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   52.251797][  T446]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.251938][  T446]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   52.252066][  T446]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   52.252196][  T446]  ? __kernel_text_address (kernel/extable.c:79)
[   52.252324][  T446]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.252454][  T446]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.252581][  T446]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   52.252710][  T446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.252843][  T446]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   52.252978][  T446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.253106][  T446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.253235][  T446]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   52.253365][  T446]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   52.253499][  T446]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   52.253627][  T446]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   52.253758][  T446]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   52.253896][  T446]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   52.254034][  T446]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   52.254165][  T446]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.254293][  T446]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.254419][  T446]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.254548][  T446]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   52.254675][  T446]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.254804][  T446]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.254939][  T446]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.255066][  T446]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.255195][  T446]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.255325][  T446]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.255454][  T446]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   52.255580][  T446]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.255708][  T446]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.255840][  T446]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.255976][  T446]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.256104][  T446]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.256233][  T446]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   52.256363][  T446]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.256497][  T446]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   52.256630][  T446]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   52.256758][  T446]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   52.256893][  T446]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   52.257027][  T446]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   52.257157][  T446]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.257285][  T446]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   52.257413][  T446]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   52.257542][  T446]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   52.257673][  T446]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   52.257802][  T446]  ? copy_msghdr_from_user (net/socket.c:2635)
[   52.257940][  T446]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   52.258100][  T446]  ? move_addr_to_kernel (net/socket.c:258)
[   52.258230][  T446]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   52.258358][  T446]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.258492][  T446]  ___sys_sendmsg (net/socket.c:2752)
[   52.258620][  T446]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   52.258778][  T446]  ? copy_msghdr_from_user (net/socket.c:2603)
[   52.258927][  T446]  __sys_sendmsg (net/socket.c:2784)
[   52.259057][  T446]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   52.259184][  T446]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   52.259344][  T446]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   52.259471][  T446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.259599][  T446]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   52.259728][  T446]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   52.259860][  T446]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   52.259993][  T446]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   52.260152][  T446] RIP: 0033:0x7f92b6d9c08e
[   52.260285][  T446] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   52.260741][  T446] RSP: 002b:00007ffcb76daf50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   52.260943][  T446] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f92b6d9c08e
[   52.261134][  T446] RDX: 0000000000000000 RSI: 00007ffcb76db000 RDI: 0000000000000005
[   52.261323][  T446] RBP: 00007ffcb76daf60 R08: 0000000000000000 R09: 0000000000000000
[   52.261513][  T446] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3e3
[   52.261704][  T446] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcb76db6d0
| [   52.263699][   T94] ------------[ cut here ]------------
| [   52.263828][   T94] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/94
| [   52.264075][   T94] Modules linked in:
| [   52.264444][   T94] Tainted: [W]=WARN
[   52.264533][   T94] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.264680][   T94] Workqueue: events_unbound linkwatch_event
[   52.264843][   T94] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   52.265001][   T94] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   52.265422][   T94] RSP: 0018:ffa00000004b79e0 EFLAGS: 00010286
[   52.265574][   T94] RAX: 00000000ffffffa6 RBX: ff1100000cf8de00 RCX: 1ff4000000096f02
[   52.265757][   T94] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf8debc
[   52.265962][   T94] RBP: ff11000004c44000 R08: 1fe22000019f1bd9 R09: ff1100000dda51a8
[   52.266139][   T94] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[   52.266315][   T94] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   52.266495][   T94] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   52.266699][   T94] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.266852][   T94] CR2: 000055707edb3d5c CR3: 00000000175db003 CR4: 0000000000771ef0
[   52.267034][   T94] PKRU: 55555554
[   52.267123][   T94] Call Trace:
[   52.267212][   T94]  <TASK>
[   52.267275][   T94]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   52.267393][   T94]  ? notifier_call_chain (kernel/notifier.c:85)
[   52.267514][   T94]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   52.267604][   T94]  netif_state_change (net/core/dev.c:1605)
[   52.267724][   T94]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   52.267878][   T94]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   52.267997][   T94]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   52.268117][   T94]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   52.268238][   T94]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   52.268354][   T94]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   52.268471][   T94]  process_one_work (kernel/workqueue.c:3314)
[   52.268593][   T94]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   52.268710][   T94]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.268838][   T94]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   52.268963][   T94]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   52.269084][   T94]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   52.269203][   T94]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   52.269321][   T94]  kthread (kernel/kthread.c:436)
[   52.269410][   T94]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   52.269554][   T94]  ? kthread_affine_node (kernel/kthread.c:378)
[   52.269673][   T94]  ret_from_fork (arch/x86/kernel/process.c:158)
[   52.269791][   T94]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   52.269949][   T94]  ? trace_x86_fpu_regs_deactivated (./arch/x86/include/asm/trace/fpu.h:52 (discriminator 22))
[   52.270094][   T94]  ? save_fpregs_to_fpstate (arch/x86/kernel/fpu/core.c:144)
[   52.270212][   T94]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   52.270328][   T94]  ? kthread_affine_node (kernel/kthread.c:378)
[   52.270446][   T94]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   52.302997][  T447] ------------[ cut here ]------------
| [   52.303178][  T447] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/447
| [   52.303448][  T447] Modules linked in:
| [   52.303926][  T447] Tainted: [W]=WARN
[   52.304072][  T447] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.304281][  T447] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   52.304508][  T447] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   52.305031][  T447] RSP: 0018:ffa0000001237050 EFLAGS: 00010286
[   52.305241][  T447] RAX: 00000000ffffffa6 RBX: ff1100000c444c80 RCX: 1ff4000000246dd0
[   52.305478][  T447] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c444d3c
[   52.305721][  T447] RBP: ff11000004c44000 R08: 1fe22000018889a9 R09: ff1100000a680b80
[   52.306077][  T447] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   52.306418][  T447] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   52.306737][  T447] FS:  00007fe5c65c5840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   52.307103][  T447] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.307403][  T447] CR2: 0000000018820988 CR3: 000000000fed7004 CR4: 0000000000771ef0
[   52.307715][  T447] PKRU: 55555554
[   52.307870][  T447] Call Trace:
[   52.308018][  T447]  <TASK>
[   52.308132][  T447]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.308333][  T447]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   52.308519][  T447]  notifier_call_chain (kernel/notifier.c:85)
[   52.308709][  T447]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   52.308912][  T447]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.309091][  T447]  ? netif_set_group (net/core/dev.c:9947)
[   52.309271][  T447]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   52.309480][  T447]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   52.309658][  T447]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   52.309849][  T447]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   52.310063][  T447]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   52.310272][  T447]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   52.310449][  T447]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.310631][  T447]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   52.310807][  T447]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   52.311005][  T447]  ? __kernel_text_address (kernel/extable.c:79)
[   52.311186][  T447]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.311366][  T447]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.311542][  T447]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   52.311720][  T447]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.311917][  T447]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   52.312123][  T447]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.312299][  T447]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.312475][  T447]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   52.312656][  T447]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   52.312845][  T447]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   52.313033][  T447]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   52.313215][  T447]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   52.313395][  T447]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   52.313574][  T447]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.313748][  T447]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.313947][  T447]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.314126][  T447]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   52.314301][  T447]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.314480][  T447]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.314654][  T447]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.314844][  T447]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.315030][  T447]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.315208][  T447]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.315387][  T447]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   52.315563][  T447]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.315738][  T447]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.315931][  T447]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.316110][  T447]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.316286][  T447]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.316464][  T447]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   52.316638][  T447]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.316817][  T447]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   52.317019][  T447]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   52.317199][  T447]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   52.317380][  T447]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   52.317562][  T447]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   52.317739][  T447]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.317937][  T447]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   52.318121][  T447]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   52.318299][  T447]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   52.318477][  T447]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   52.318654][  T447]  ? copy_msghdr_from_user (net/socket.c:2635)
[   52.318843][  T447]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   52.319058][  T447]  ? move_addr_to_kernel (net/socket.c:258)
[   52.319238][  T447]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   52.319418][  T447]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.319599][  T447]  ___sys_sendmsg (net/socket.c:2752)
[   52.319776][  T447]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   52.320005][  T447]  ? copy_msghdr_from_user (net/socket.c:2603)
[   52.320195][  T447]  __sys_sendmsg (net/socket.c:2784)
[   52.320372][  T447]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   52.320547][  T447]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   52.320757][  T447]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   52.320956][  T447]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.321134][  T447]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   52.321309][  T447]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   52.321486][  T447]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   52.321662][  T447]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   52.321881][  T447] RIP: 0033:0x7fe5c67ff08e
[   52.322072][  T447] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   52.322577][  T447] RSP: 002b:00007ffed1157540 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   52.322818][  T447] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe5c67ff08e
[   52.323079][  T447] RDX: 0000000000000000 RSI: 00007ffed11575f0 RDI: 0000000000000005
[   52.323318][  T447] RBP: 00007ffed1157550 R08: 0000000000000000 R09: 0000000000000000
[   52.323559][  T447] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3e4
[   52.323796][  T447] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffed1157cc0
| [   52.349244][  T448] ------------[ cut here ]------------
| [   52.349418][  T448] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/448
| [   52.349685][  T448] Modules linked in:
| [   52.350154][  T448] Tainted: [W]=WARN
[   52.350300][  T448] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.350504][  T448] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   52.350716][  T448] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   52.351232][  T448] RSP: 0018:ffa0000001277150 EFLAGS: 00010286
[   52.351445][  T448] RAX: 00000000ffffffa6 RBX: ff1100000c444900 RCX: 1ff400000024edf0
[   52.351677][  T448] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4449bc
[   52.351935][  T448] RBP: ff11000004c41000 R08: 1fe2200001888939 R09: ff1100000a682e58
[   52.352170][  T448] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   52.352411][  T448] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000004c84ac0
[   52.352650][  T448] FS:  00007fcda5ecc840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   52.352939][  T448] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.353146][  T448] CR2: 00000000004ebb20 CR3: 000000000f3a9006 CR4: 0000000000771ef0
[   52.353385][  T448] PKRU: 55555554
[   52.353530][  T448] Call Trace:
[   52.353671][  T448]  <TASK>
[   52.353784][  T448]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   52.353980][  T448]  ? notifier_call_chain (kernel/notifier.c:85)
[   52.354157][  T448]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   52.354304][  T448]  netif_state_change (net/core/dev.c:1605)
[   52.354480][  T448]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   52.354686][  T448]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   52.354917][  T448]  linkwatch_sync_dev (net/core/link_watch.c:295)
[   52.355094][  T448]  rtnl_getlink (net/core/rtnetlink.c:4273)
[   52.355273][  T448]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.355446][  T448]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.355620][  T448]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   52.355794][  T448]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   52.355987][  T448]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.356167][  T448]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.356358][  T448]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.356531][  T448]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.356707][  T448]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   52.356893][  T448]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.357077][  T448]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.357255][  T448]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.357434][  T448]  ? rtnl_dump_ifinfo (./include/net/netlink.h:1236)
[   52.357610][  T448]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   52.357784][  T448]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.357980][  T448]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.358156][  T448]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.358333][  T448]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.358507][  T448]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.358683][  T448]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   52.358871][  T448]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.359054][  T448]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   52.359233][  T448]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   52.359407][  T448]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   52.359586][  T448]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   52.359762][  T448]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   52.359954][  T448]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.360133][  T448]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   52.360309][  T448]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   52.360484][  T448]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   52.360662][  T448]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   52.360849][  T448]  ? copy_msghdr_from_user (net/socket.c:2635)
[   52.361032][  T448]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   52.361237][  T448]  ? move_addr_to_kernel (net/socket.c:258)
[   52.361410][  T448]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   52.361593][  T448]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   52.361798][  T448]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   52.361989][  T448]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   52.362195][  T448]  ___sys_sendmsg (net/socket.c:2752)
[   52.362371][  T448]  ? copy_msghdr_from_user (net/socket.c:2603)
[   52.362544][  T448]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.362730][  T448]  ? move_addr_to_user (./include/linux/uaccess.h:236 net/socket.c:302)
[   52.362921][  T448]  ? do_getsockname (net/socket.c:2192)
[   52.363098][  T448]  __sys_sendmsg (net/socket.c:2784)
[   52.363275][  T448]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   52.363454][  T448]  ? __sys_getsockname (net/socket.c:2210)
[   52.363628][  T448]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.363804][  T448]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   52.364001][  T448]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   52.364177][  T448]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   52.364354][  T448]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   52.364559][  T448] RIP: 0033:0x7fcda610608e
[   52.364739][  T448] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   52.365258][  T448] RSP: 002b:00007ffd51b78190 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   52.365498][  T448] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcda610608e
[   52.365734][  T448] RDX: 0000000000000000 RSI: 00007ffd51b78240 RDI: 0000000000000006
[   52.365989][  T448] RBP: 00007ffd51b781a0 R08: 0000000000000000 R09: 0000000000000000
[   52.366225][  T448] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3e3
[   52.366463][  T448] R13: 00007ffd51b782f0 R14: 0000000000000000 R15: 0000000000000004
| [   52.373815][  T448] ------------[ cut here ]------------
| [   52.374026][  T448] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/448
| [   52.374321][  T448] Modules linked in:
| [   52.374775][  T448] Tainted: [W]=WARN
[   52.374960][  T448] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.375188][  T448] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   52.375412][  T448] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   52.375956][  T448] RSP: 0018:ffa0000001277050 EFLAGS: 00010286
[   52.376174][  T448] RAX: 00000000ffffffa6 RBX: ff1100000cf8c740 RCX: 1ff400000024edd0
[   52.376416][  T448] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf8c7fc
[   52.376658][  T448] RBP: ff11000004c41000 R08: 1fe22000019f1901 R09: ff1100000a682e80
[   52.376917][  T448] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[   52.377157][  T448] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   52.377401][  T448] FS:  00007fcda5ecc840(0000) GS:ff110000c13c7000(0000) knlGS:0000000000000000
[   52.377673][  T448] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.377923][  T448] CR2: 00007fcda6254900 CR3: 000000000f3a9006 CR4: 0000000000771ef0
[   52.378165][  T448] PKRU: 55555554
[   52.378307][  T448] Call Trace:
[   52.378451][  T448]  <TASK>
[   52.378565][  T448]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.378744][  T448]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   52.378943][  T448]  notifier_call_chain (kernel/notifier.c:85)
[   52.379123][  T448]  netif_set_mac_address (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9993)
[   52.379300][  T448]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.379476][  T448]  ? netif_set_group (net/core/dev.c:9947)
[   52.379655][  T448]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   52.379900][  T448]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[   52.380090][  T448]  do_setlink.isra.0 (net/core/rtnetlink.c:3158)
[   52.380272][  T448]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   52.380449][  T448]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   52.380658][  T448]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   52.380848][  T448]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.381032][  T448]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   52.381209][  T448]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   52.381389][  T448]  ? __kernel_text_address (kernel/extable.c:79)
[   52.381569][  T448]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.381847][  T448]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.382030][  T448]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   52.382207][  T448]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.382386][  T448]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   52.382646][  T448]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.382822][  T448]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.383022][  T448]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   52.383198][  T448]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   52.383456][  T448]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   52.383635][  T448]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   52.383817][  T448]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   52.384017][  T448]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   52.384285][  T448]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.384463][  T448]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.384641][  T448]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.384816][  T448]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   52.385097][  T448]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.385279][  T448]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.385455][  T448]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.385632][  T448]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.385913][  T448]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   52.386093][  T448]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   52.386270][  T448]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   52.386446][  T448]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.386706][  T448]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.386896][  T448]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.387084][  T448]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   52.387257][  T448]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.387517][  T448]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   52.387697][  T448]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.387885][  T448]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   52.388074][  T448]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   52.388332][  T448]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   52.388510][  T448]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   52.388687][  T448]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   52.388877][  T448]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.389152][  T448]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   52.389331][  T448]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   52.389509][  T448]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   52.389686][  T448]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   52.389968][  T448]  ? copy_msghdr_from_user (net/socket.c:2635)
[   52.390149][  T448]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   52.390356][  T448]  ? move_addr_to_kernel (net/socket.c:258)
[   52.390540][  T448]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   52.390801][  T448]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   52.391000][  T448]  ___sys_sendmsg (net/socket.c:2752)
[   52.391181][  T448]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   52.391388][  T448]  ? copy_msghdr_from_user (net/socket.c:2603)
[   52.391660][  T448]  __sys_sendmsg (net/socket.c:2784)
[   52.391849][  T448]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   52.392036][  T448]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   52.392253][  T448]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   52.392517][  T448]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   52.392694][  T448]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   52.392884][  T448]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   52.393070][  T448]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   52.393333][  T448]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   52.393539][  T448] RIP: 0033:0x7fcda610608e
[   52.393723][  T448] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   52.394246][  T448] RSP: 002b:00007ffd51b79e10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   52.394571][  T448] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fcda610608e
[   52.394812][  T448] RDX: 0000000000000000 RSI: 00007ffd51b79ec0 RDI: 0000000000000005
[   52.395072][  T448] RBP: 00007ffd51b79e20 R08: 0000000000000000 R09: 0000000000000000
[   52.395392][  T448] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e3e4
[   52.395630][  T448] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd51b7a590
| [   55.412654][   T12] ------------[ cut here ]------------
| [   55.412823][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   55.413082][   T12] Modules linked in:
| [   55.413446][   T12] Tainted: [W]=WARN
[   55.413535][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.413681][   T12] Workqueue: netns cleanup_net
[   55.413803][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.413969][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.414383][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   55.414529][   T12] RAX: 00000000ffffffa6 RBX: ff110000133d1000 RCX: 1ff4000000018eed
[   55.414713][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000133d10bc
[   55.414895][   T12] RBP: ff11000013bac000 R08: 1fe220000267a219 R09: ff11000001aed1d0
[   55.415074][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   55.415244][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.415423][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   55.415628][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.415774][   T12] CR2: 000055707edb3d5c CR3: 00000000175db006 CR4: 0000000000771ef0
[   55.415962][   T12] PKRU: 55555554
[   55.416051][   T12] Call Trace:
[   55.416137][   T12]  <TASK>
[   55.416201][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.416358][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.416504][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.416623][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.416742][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.416865][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.416988][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.417112][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.417228][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.417348][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.417468][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.417586][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.417700][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.417822][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.417952][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.418073][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.418195][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.418311][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.418433][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.418555][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.418671][   T12]  kthread (kernel/kthread.c:436)
[   55.418763][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.418920][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.419037][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.419156][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.419307][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.419425][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.419544][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.422095][   T12] ------------[ cut here ]------------
| [   55.422222][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   55.422459][   T12] Modules linked in:
| [   55.422819][   T12] Tainted: [W]=WARN
[   55.422919][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.423069][   T12] Workqueue: netns cleanup_net
[   55.423192][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.423344][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.423767][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   55.423923][   T12] RAX: 00000000ffffffa6 RBX: ff110000133d1700 RCX: 1ff4000000018eed
[   55.424097][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000133d17bc
[   55.424273][   T12] RBP: ff1100000fc84000 R08: 1fe220000267a2f9 R09: ff11000001aed1d0
[   55.424444][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   55.424621][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.424798][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   55.425012][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.425159][   T12] CR2: 000055707edb3d5c CR3: 00000000175db006 CR4: 0000000000771ef0
[   55.425333][   T12] PKRU: 55555554
[   55.425422][   T12] Call Trace:
[   55.425510][   T12]  <TASK>
[   55.425572][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.425722][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.425872][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.425992][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.426109][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.426230][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.426347][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.426466][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.426583][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.426701][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.426819][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.426947][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.427061][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.427179][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.427295][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.427415][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.427536][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.427653][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.427775][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.427902][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.428025][   T12]  kthread (kernel/kthread.c:436)
[   55.428113][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.428260][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.428377][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.428493][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.428638][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.428755][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.428876][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.431051][   T12] ------------[ cut here ]------------
| [   55.431168][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   55.431397][   T12] Modules linked in:
| [   55.431753][   T12] Tainted: [W]=WARN
[   55.431845][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.431999][   T12] Workqueue: netns cleanup_net
[   55.432123][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.432276][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.432696][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   55.432846][   T12] RAX: 00000000ffffffa6 RBX: ff110000133d1e00 RCX: 1ff4000000018eed
[   55.433024][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000133d1ebc
[   55.433197][   T12] RBP: ff11000008b91000 R08: 1fe220000267a3d9 R09: ff11000001aed1d0
[   55.433370][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   55.433546][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.433726][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   55.433939][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.434086][   T12] CR2: 000055707edb3d5c CR3: 00000000175db006 CR4: 0000000000771ef0
[   55.434264][   T12] PKRU: 55555554
[   55.434350][   T12] Call Trace:
[   55.434437][   T12]  <TASK>
[   55.434498][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.434654][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.434801][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.434928][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.435046][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.435161][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.435278][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.435396][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.435517][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.435632][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.435751][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.435874][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.435993][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.436111][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.436226][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.436348][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.436470][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.436587][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.436710][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.436831][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.436957][   T12]  kthread (kernel/kthread.c:436)
[   55.437045][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.437190][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.437306][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.437422][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.437569][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.437691][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.437808][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.439767][   T12] ------------[ cut here ]------------
| [   55.439888][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   55.440121][   T12] Modules linked in:
| [   55.440469][   T12] Tainted: [W]=WARN
[   55.440556][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.440702][   T12] Workqueue: netns cleanup_net
[   55.440822][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.440986][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.441400][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   55.441548][   T12] RAX: 00000000ffffffa6 RBX: ff11000011bf9c40 RCX: 1ff4000000018eed
[   55.441720][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000011bf9cfc
[   55.441899][   T12] RBP: ff11000009274000 R08: 1fe220000237f3a1 R09: ff11000001aed1d0
[   55.442095][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   55.442271][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.442450][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   55.442653][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.442800][   T12] CR2: 000055707edb3d5c CR3: 00000000175db006 CR4: 0000000000771ef0
[   55.442983][   T12] PKRU: 55555554
[   55.443070][   T12] Call Trace:
[   55.443157][   T12]  <TASK>
[   55.443217][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.443368][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.443515][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.443636][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.443753][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.443874][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.443995][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.444113][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.444231][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.444349][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.444470][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.444586][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.444700][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.444820][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.444944][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.445064][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.445186][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.445303][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.445425][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.445547][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.445664][   T12]  kthread (kernel/kthread.c:436)
[   55.445753][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.445903][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.446025][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.446147][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.446296][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.446413][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.446529][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.448476][   T12] ------------[ cut here ]------------
| [   55.448590][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   55.448818][   T12] Modules linked in:
| [   55.449179][   T12] Tainted: [W]=WARN
[   55.449267][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.449412][   T12] Workqueue: netns cleanup_net
[   55.449535][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.449685][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.450124][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   55.450267][   T12] RAX: 00000000ffffffa6 RBX: ff11000006116e40 RCX: 1ff4000000018eed
[   55.450441][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000006116efc
[   55.450615][   T12] RBP: ff11000006241000 R08: 1fe2200000c22de1 R09: ff11000001aed1d0
[   55.450789][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   55.450972][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.451145][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   55.451349][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.451496][   T12] CR2: 000055707edb3d5c CR3: 00000000175db006 CR4: 0000000000771ef0
[   55.451671][   T12] PKRU: 55555554
[   55.451758][   T12] Call Trace:
[   55.451846][   T12]  <TASK>
[   55.451984][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.452134][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.452282][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.452400][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.452590][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.452704][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.452820][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.452950][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.453139][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.453255][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.453373][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.453491][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.453677][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.453794][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.453917][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.454041][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.454233][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.454348][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.454469][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.454590][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.454776][   T12]  kthread (kernel/kthread.c:436)
[   55.454869][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.455044][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.455161][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.455347][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.455492][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.455606][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.455722][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.470021][   T12] ------------[ cut here ]------------
| [   55.470161][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   55.470404][   T12] Modules linked in:
| [   55.470779][   T12] Tainted: [W]=WARN
[   55.470876][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.471039][   T12] Workqueue: netns cleanup_net
[   55.471166][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.471326][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.471761][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   55.471926][   T12] RAX: 00000000ffffffa6 RBX: ff11000006116900 RCX: 1ff4000000018eaf
[   55.472108][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000061169bc
[   55.472289][   T12] RBP: ff11000004c41000 R08: 1fe2200000c22d39 R09: ff11000001aed1d0
[   55.472471][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   55.472653][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000004c44000
[   55.472842][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   55.473074][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.473226][   T12] CR2: 000055709de7be5c CR3: 00000000175db006 CR4: 0000000000771ef0
[   55.473419][   T12] PKRU: 55555554
[   55.473510][   T12] Call Trace:
[   55.473601][   T12]  <TASK>
[   55.473665][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   55.473790][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   55.473922][   T12]  netif_close_many (net/core/dev.c:1804)
[   55.474095][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.474219][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.474341][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.474467][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   55.474590][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   55.474747][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   55.474906][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.475035][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.475188][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.475315][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.475438][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   55.475595][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   55.475719][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   55.475846][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   55.475973][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   55.476112][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   55.476289][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   55.476449][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.476570][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.476694][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.476820][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.476952][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.477078][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.477199][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.477325][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.477451][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.477573][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.477699][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.477826][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.477957][   T12]  kthread (kernel/kthread.c:436)
[   55.478048][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.478201][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.478324][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.478445][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.478599][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.478720][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.478846][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.481309][   T12] ------------[ cut here ]------------
| [   55.481434][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   55.481675][   T12] Modules linked in:
| [   55.482061][   T12] Tainted: [W]=WARN
[   55.482153][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.482308][   T12] Workqueue: netns cleanup_net
[   55.482436][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.482600][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.483048][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   55.483201][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b376c80 RCX: 1ff4000000018eaf
[   55.483384][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b376d3c
[   55.483582][   T12] RBP: ff11000004c44000 R08: 1fe220000166eda9 R09: ff11000001aed1d0
[   55.483786][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   55.483989][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   55.484170][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   55.484385][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.484540][   T12] CR2: 000055709de7be5c CR3: 00000000175db006 CR4: 0000000000771ef0
[   55.484725][   T12] PKRU: 55555554
[   55.484817][   T12] Call Trace:
[   55.484927][   T12]  <TASK>
[   55.484991][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   55.485114][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   55.485241][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   55.485334][   T12]  netif_close_many (net/core/dev.c:1804)
[   55.485461][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.485584][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.485707][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.485830][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   55.485965][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   55.486118][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   55.486272][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.486394][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.486550][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.486678][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.486805][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   55.486968][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   55.487096][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   55.487220][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   55.487344][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   55.487469][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   55.487595][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   55.487720][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.487847][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.487980][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.488103][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.488224][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.488346][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.488468][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.488592][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.488718][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.488848][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.488980][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.489107][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.489228][   T12]  kthread (kernel/kthread.c:436)
[   55.489320][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.489473][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.489607][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.489731][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.489891][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.490018][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.490163][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.494877][   T12] ------------[ cut here ]------------
| [   55.495017][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   55.495256][   T12] Modules linked in:
| [   55.495616][   T12] Tainted: [W]=WARN
[   55.495706][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.495861][   T12] Workqueue: netns cleanup_net
[   55.495986][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.496140][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.496561][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   55.496711][   T12] RAX: 00000000ffffffa6 RBX: ff1100000dbc71c0 RCX: 1ff4000000018ed5
[   55.496892][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbc727c
[   55.497073][   T12] RBP: ff11000004c41000 R08: 1fe2200001b78e51 R09: ff11000001aed1d0
[   55.497250][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   55.497430][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.497610][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   55.497816][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.497983][   T12] CR2: 000055709de7be5c CR3: 00000000175db006 CR4: 0000000000771ef0
[   55.498164][   T12] PKRU: 55555554
[   55.498282][   T12] Call Trace:
[   55.498408][   T12]  <TASK>
[   55.498473][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.498623][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.498770][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.498894][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.499041][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   55.499255][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   55.499421][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   55.499547][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   55.499667][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   55.499789][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   55.500069][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.500196][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.500352][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.500505][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.500631][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.500764][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.500944][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.501065][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.501188][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.501308][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.501430][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.501554][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.501679][   T12]  kthread (kernel/kthread.c:436)
[   55.501768][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.501968][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.502146][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.502271][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.502424][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.502547][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.502672][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.506207][   T12] ------------[ cut here ]------------
| [   55.506340][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   55.506575][   T12] Modules linked in:
| [   55.507451][   T12] Tainted: [W]=WARN
[   55.507542][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.507690][   T12] Workqueue: netns cleanup_net
[   55.507867][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.508077][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.508506][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   55.508658][   T12] RAX: 00000000ffffffa6 RBX: ff1100000dbc7c40 RCX: 1ff4000000018ed5
[   55.508883][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000dbc7cfc
[   55.509064][   T12] RBP: ff11000004c44000 R08: 1fe2200001b78fa1 R09: ff11000001aed1d0
[   55.509241][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   55.509417][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.509638][   T12] FS:  0000000000000000(0000) GS:ff110000c1447000(0000) knlGS:0000000000000000
[   55.509893][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.510048][   T12] CR2: 000055709de7be5c CR3: 000000003174d004 CR4: 0000000000771ef0
[   55.510230][   T12] PKRU: 55555554
[   55.510319][   T12] Call Trace:
[   55.510407][   T12]  <TASK>
[   55.510469][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.510620][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.510767][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.510939][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.511058][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   55.511209][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   55.511329][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   55.511447][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   55.511566][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   55.511684][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   55.511805][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.511971][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.512094][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.512211][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.512327][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.512446][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.512564][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.512684][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.512806][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.512977][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.513099][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.513223][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.513343][   T12]  kthread (kernel/kthread.c:436)
[   55.513432][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.513582][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.513701][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.513822][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.514025][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.514144][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.514263][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.516801][   T12] ------------[ cut here ]------------
| [   55.516950][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   55.517185][   T12] Modules linked in:
| [   55.517550][   T12] Tainted: [W]=WARN
[   55.517639][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.517787][   T12] Workqueue: netns cleanup_net
[   55.518437][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.518594][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.519104][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   55.519251][   T12] RAX: 00000000ffffffa6 RBX: ff1100000f911000 RCX: 1ff4000000018ed5
[   55.519490][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f9110bc
[   55.519719][   T12] RBP: ff11000009371000 R08: 1fe2200001f22219 R09: ff11000001aed1d0
[   55.519970][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   55.520145][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.520326][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   55.520534][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.520682][   T12] CR2: 00007fe120fe2f98 CR3: 000000003174d004 CR4: 0000000000771ef0
[   55.520929][   T12] PKRU: 55555554
[   55.521018][   T12] Call Trace:
[   55.521106][   T12]  <TASK>
[   55.521224][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.521376][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.521526][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.521643][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.521766][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   55.522112][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   55.522235][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   55.522354][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   55.522473][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   55.522596][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   55.522716][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.522927][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.523051][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.523175][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.523297][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.523416][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.523533][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.523654][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.523775][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.523990][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.524114][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.524236][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.524354][   T12]  kthread (kernel/kthread.c:436)
[   55.524443][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.524592][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.524715][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.524936][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.525084][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.525202][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.525321][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.559985][   T12] ------------[ cut here ]------------
| [   55.560127][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   55.560358][   T12] Modules linked in:
| [   55.560720][   T12] Tainted: [W]=WARN
[   55.560813][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.560970][   T12] Workqueue: netns cleanup_net
[   55.561094][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.561245][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.561669][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   55.561816][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c6898c0 RCX: 1ff4000000018eed
[   55.562010][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c68997c
[   55.562184][   T12] RBP: ff11000008c8c000 R08: 1fe22000018d1331 R09: ff11000001aed1d0
[   55.562361][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   55.562533][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.562707][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   55.562926][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.563072][   T12] CR2: 00007fe120fe2f98 CR3: 000000003174d004 CR4: 0000000000771ef0
[   55.563250][   T12] PKRU: 55555554
[   55.563338][   T12] Call Trace:
[   55.563430][   T12]  <TASK>
[   55.563494][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.563648][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.563798][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.563925][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.564044][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.564166][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.564288][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.564406][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.564525][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.564640][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.564761][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.564884][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.565005][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.565122][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.565239][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.565356][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.565477][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.565595][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.565721][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.565848][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.565969][   T12]  kthread (kernel/kthread.c:436)
[   55.566057][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.566199][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.566316][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.566433][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.566580][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.566696][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.566813][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.568978][   T12] ------------[ cut here ]------------
| [   55.569095][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   55.569318][   T12] Modules linked in:
| [   55.569671][   T12] Tainted: [W]=WARN
[   55.569761][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.569915][   T12] Workqueue: netns cleanup_net
[   55.570035][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.570185][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.570596][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   55.570740][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c6891c0 RCX: 1ff4000000018eed
[   55.570920][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c68927c
[   55.571096][   T12] RBP: ff1100000986c000 R08: 1fe22000018d1251 R09: ff11000001aed1d0
[   55.571268][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   55.571439][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.571611][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   55.571817][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.571972][   T12] CR2: 00007fe120fe2f98 CR3: 000000003174d004 CR4: 0000000000771ef0
[   55.572148][   T12] PKRU: 55555554
[   55.572235][   T12] Call Trace:
[   55.572321][   T12]  <TASK>
[   55.572380][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.572528][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.572671][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.572792][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.572923][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.573041][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.573157][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.573277][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.573395][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.573513][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.573632][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.573750][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.573874][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.573995][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.574110][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.574227][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.574347][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.574465][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.574586][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.574707][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.574823][   T12]  kthread (kernel/kthread.c:436)
[   55.574920][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.575067][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.575183][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.575299][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.575444][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.575559][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.575676][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.582052][   T12] ------------[ cut here ]------------
| [   55.582173][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   55.582404][   T12] Modules linked in:
| [   55.582761][   T12] Tainted: [W]=WARN
[   55.582855][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.583006][   T12] Workqueue: netns cleanup_net
[   55.583127][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.583280][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.583698][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   55.583848][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c688c80 RCX: 1ff4000000018eed
[   55.584026][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c688d3c
[   55.584198][   T12] RBP: ff1100000a4b4000 R08: 1fe22000018d11a9 R09: ff11000001aed1d0
[   55.584370][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   55.584545][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.584720][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   55.584932][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.585077][   T12] CR2: 00007fe120fe2f98 CR3: 000000003174d004 CR4: 0000000000771ef0
[   55.585254][   T12] PKRU: 55555554
[   55.585339][   T12] Call Trace:
[   55.585425][   T12]  <TASK>
[   55.585487][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.585637][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.585786][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.585907][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.586030][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.586146][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.586263][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.586385][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.586504][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.586618][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.586736][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.586865][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.586983][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.587101][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.587215][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.587333][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.587454][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.587570][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.587691][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.587813][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.587938][   T12]  kthread (kernel/kthread.c:436)
[   55.588026][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.588171][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.588292][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.588411][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.588555][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.588676][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.588792][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.590723][   T12] ------------[ cut here ]------------
| [   55.590844][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   55.591079][   T12] Modules linked in:
| [   55.591430][   T12] Tainted: [W]=WARN
[   55.591521][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.591665][   T12] Workqueue: netns cleanup_net
[   55.591786][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.591948][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.592362][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   55.592508][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c688900 RCX: 1ff4000000018eed
[   55.592681][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c6889bc
[   55.592862][   T12] RBP: ff11000012189000 R08: 1fe22000018d1139 R09: ff11000001aed1d0
[   55.593038][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   55.593211][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.593386][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   55.593588][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.593740][   T12] CR2: 00007fe120fe2f98 CR3: 000000003174d004 CR4: 0000000000771ef0
[   55.593926][   T12] PKRU: 55555554
[   55.594012][   T12] Call Trace:
[   55.594098][   T12]  <TASK>
[   55.594158][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.594304][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.594449][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.594568][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.594685][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.594806][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.594932][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.595050][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.595166][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.595281][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.595400][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.595519][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.595635][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.595754][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.595874][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.595997][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.596115][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.596230][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.596352][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.596475][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.596596][   T12]  kthread (kernel/kthread.c:436)
[   55.596684][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.596830][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.596958][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.597074][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.597222][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.597340][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.597465][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.599403][   T12] ------------[ cut here ]------------
| [   55.599523][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   55.599750][   T12] Modules linked in:
| [   55.600115][   T12] Tainted: [W]=WARN
[   55.600204][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.600351][   T12] Workqueue: netns cleanup_net
[   55.600472][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.600627][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.601051][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   55.601198][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c688580 RCX: 1ff4000000018eed
[   55.601373][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c68863c
[   55.601549][   T12] RBP: ff1100000a4cc000 R08: 1fe22000018d10c9 R09: ff11000001aed1d0
[   55.601723][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   55.601902][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.602081][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   55.602288][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.602435][   T12] CR2: 00007fe120fe2f98 CR3: 000000003174d004 CR4: 0000000000771ef0
[   55.602610][   T12] PKRU: 55555554
[   55.602696][   T12] Call Trace:
[   55.602782][   T12]  <TASK>
[   55.602847][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.603000][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.603144][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.603259][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.603377][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.603500][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.603617][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.603736][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.603859][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.603978][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.604097][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.604214][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.604329][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.604447][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.604564][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.604681][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.604800][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.604925][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.605051][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.605171][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.605287][   T12]  kthread (kernel/kthread.c:436)
[   55.605376][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.605523][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.605639][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.605755][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.605904][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.606025][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.606143][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.629946][   T12] ------------[ cut here ]------------
| [   55.630075][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   55.630309][   T12] Modules linked in:
| [   55.630673][   T12] Tainted: [W]=WARN
[   55.630762][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.630921][   T12] Workqueue: netns cleanup_net
[   55.631044][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.631199][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.631624][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   55.631773][   T12] RAX: 00000000ffffffa6 RBX: ff11000004f7fa80 RCX: 1ff4000000018ed5
[   55.631960][   T12] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004f7fb3c
[   55.632133][   T12] RBP: ff110000137d1000 R08: 1fe22000009eff69 R09: ff11000001aed1d0
[   55.632309][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   55.632485][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.632666][   T12] FS:  0000000000000000(0000) GS:ff110000c12c7000(0000) knlGS:0000000000000000
[   55.632876][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.633028][   T12] CR2: 00007fe120fe2f98 CR3: 000000003174d004 CR4: 0000000000771ef0
[   55.633204][   T12] PKRU: 55555554
[   55.633291][   T12] Call Trace:
[   55.633378][   T12]  <TASK>
[   55.633438][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.633590][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.633739][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   55.633866][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   55.633988][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   55.634105][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   55.634226][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   55.634345][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   55.634467][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   55.634583][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.634703][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   55.634821][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.634949][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.635067][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.635184][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.635303][   T12]  process_one_work (kernel/workqueue.c:3314)
[   55.635423][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.635548][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.635670][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.635791][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.635918][   T12]  kthread (kernel/kthread.c:436)
[   55.636007][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.636152][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.636271][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.636392][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.636543][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.636660][   T12]  ? kthread_affine_node (kernel/kthread.c:378)


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:rtnl_newlink_create
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:sit_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init
rtmsg_ifinfo_build_skb:rtnetlink_event:notifier_call_chain:netif_set_mac_address:rtnl_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:veth_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:default_device_exit_batch
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:ops_undo_list:cleanup_net:process_one_work
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_state_change:__linkwatch_run_queue:linkwatch_event
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:netif_change_flags:rtnl_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:ip6_tnl_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:vti6_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_state_change:linkwatch_sync_dev:rtnl_getlink
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:default_device_exit_batch:ops_undo_list:cleanup_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:__ip_tunnel_create:ip_tunnel_init_net