======================================
| 0
| xx__-> [    2.186627] ------------[ cut here ]------------
| [    2.186669] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/146
| [    2.186756] Tainted: [W]=WARN
[    2.186770] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.186795] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.186814] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.186878] RSP: 0018:ff3212f7c038fcc8 EFLAGS: 00010286
[    2.186901] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.186928] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c184ca00
[    2.186958] RBP: 0000000000000000 R08: ff125b31c33a2950 R09: ff125b31c465e02c
[    2.186996] R10: ff125b31c4659120 R11: fefefefefefefeff R12: 0000000000000000
[    2.187020] R13: 0000000000000010 R14: ff125b31c4659000 R15: ff125b31c184ca00
[    2.187050] FS:  00007f1aa407dbc0(0000) GS:ff125b323fdc9000(0000) knlGS:0000000000000000
[    2.187078] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.187100] CR2: 00007f1aa40ef0a0 CR3: 000000000442c004 CR4: 0000000000771ef0
[    2.187127] PKRU: 55555554
[    2.187137] Call Trace:
[    2.187150]  <TASK>
[    2.187162]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.187177]  register_netdevice (net/core/dev.c:11488)
[    2.187193]  register_netdev (net/core/dev.c:11552)
[    2.187208]  loopback_net_init (drivers/net/loopback.c:218)
[    2.187227]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.187248]  ops_init (net/core/net_namespace.c:137)
[    2.187265]  setup_net (net/core/net_namespace.c:446)
[    2.187287]  copy_net_ns (net/core/net_namespace.c:579)
[    2.187304]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.187325]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.187344]  ksys_unshare (kernel/fork.c:3243)
[    2.187363]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.187376]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.187391]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.187410] RIP: 0033:0x7f1aa4177bcb
[    2.187428] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.187485] RSP: 002b:00007ffdab89bf68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    2.187512] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f1aa4177bcb
[    2.187543] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.187571] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    2.187602] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    2.187626] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000080
| [    2.187663] ---[ end trace 0000000000000000 ]---
| [    2.187774] ------------[ cut here ]------------
| [    2.187793] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/146
| [    2.187878] Tainted: [W]=WARN
[    2.187890] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.187911] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.187930] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.187998] RSP: 0018:ff3212f7c038fcb0 EFLAGS: 00010286
[    2.188015] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.188040] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c184ca00
[    2.188071] RBP: 0000000000000000 R08: ff125b31c33a29d0 R09: ff125b31c466b030
[    2.188102] R10: ff125b31c465e120 R11: fefefefefefefeff R12: 0000000000000000
[    2.188139] R13: 0000000000000010 R14: ff125b31c465e000 R15: ff125b31c184ca00
[    2.188172] FS:  00007f1aa407dbc0(0000) GS:ff125b323fdc9000(0000) knlGS:0000000000000000
[    2.188201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.188224] CR2: 00007f1aa40ef0a0 CR3: 000000000442c004 CR4: 0000000000771ef0
[    2.188255] PKRU: 55555554
[    2.188265] Call Trace:
[    2.188274]  <TASK>
[    2.188282]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.188302]  register_netdevice (net/core/dev.c:11488)
[    2.188319]  register_netdev (net/core/dev.c:11552)
[    2.188339]  sit_init_net (net/ipv6/sit.c:1860)
[    2.188356]  ops_init (net/core/net_namespace.c:137)
[    2.188370]  setup_net (net/core/net_namespace.c:446)
[    2.188388]  copy_net_ns (net/core/net_namespace.c:579)
[    2.188404]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.188424]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.188443]  ksys_unshare (kernel/fork.c:3243)
[    2.188462]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.188479]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.188493]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.188512] RIP: 0033:0x7f1aa4177bcb
[    2.188531] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.188592] RSP: 002b:00007ffdab89bf68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    2.188618] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f1aa4177bcb
[    2.188643] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.188669] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    2.188695] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    2.188729] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000080
| [    2.188765] ---[ end trace 0000000000000000 ]---
| [    2.188999] ------------[ cut here ]------------
| [    2.189020] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/146
| [    2.189091] Tainted: [W]=WARN
[    2.189103] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.189124] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.189141] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.189200] RSP: 0018:ff3212f7c038fcc8 EFLAGS: 00010286
[    2.189217] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.189247] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c184ca00
[    2.189274] RBP: 0000000000000000 R08: ff125b31c3375290 R09: ff125b31c468a02c
[    2.189299] R10: ff125b31c466d120 R11: fefefefefefefeff R12: 0000000000000000
[    2.189323] R13: 0000000000000010 R14: ff125b31c466d000 R15: ff125b31c184ca00
[    2.189359] FS:  00007f1aa407dbc0(0000) GS:ff125b323fdc9000(0000) knlGS:0000000000000000
[    2.189388] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.189411] CR2: 00007f1aa40ef0a0 CR3: 000000000442c004 CR4: 0000000000771ef0
[    2.189439] PKRU: 55555554
[    2.189448] Call Trace:
[    2.189456]  <TASK>
[    2.189467]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.189481]  register_netdevice (net/core/dev.c:11488)
[    2.189497]  register_netdev (net/core/dev.c:11552)
[    2.189514]  loopback_net_init (drivers/net/loopback.c:218)
[    2.189536]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.189558]  ops_init (net/core/net_namespace.c:137)
[    2.189575]  setup_net (net/core/net_namespace.c:446)
[    2.189588]  copy_net_ns (net/core/net_namespace.c:579)
[    2.189602]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.189622]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.189645]  ksys_unshare (kernel/fork.c:3243)
[    2.189658]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.189675]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.189691]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.189710] RIP: 0033:0x7f1aa4177bcb
[    2.189726] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.189782] RSP: 002b:00007ffdab89bf68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    2.189808] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f1aa4177bcb
[    2.189836] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.189866] RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
[    2.189896] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    2.189924] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000080
| [    2.189960] ---[ end trace 0000000000000000 ]---
| [    2.190020] ------------[ cut here ]------------
| [    2.190041] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/146
| [    2.190110] Tainted: [W]=WARN
[    2.190124] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.190154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.190178] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.190251] RSP: 0018:ff3212f7c038fcb0 EFLAGS: 00010286
[    2.190268] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.190293] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c184ca00
[    2.190326] RBP: 0000000000000000 R08: ff125b31c3375390 R09: ff125b31c468f030
[    2.190366] R10: ff125b31c468a120 R11: fefefefefefefeff R12: 0000000000000000
[    2.190389] R13: 0000000000000010 R14: ff125b31c468a000 R15: ff125b31c184ca00
[    2.190421] FS:  00007f1aa407dbc0(0000) GS:ff125b323fdc9000(0000) knlGS:0000000000000000
[    2.190465] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.190491] CR2: 00007f1aa40ef0a0 CR3: 000000000442c004 CR4: 0000000000771ef0
[    2.190516] PKRU: 55555554
[    2.190526] Call Trace:
[    2.190534]  <TASK>
[    2.190545]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.190560]  register_netdevice (net/core/dev.c:11488)
[    2.190574]  register_netdev (net/core/dev.c:11552)
[    2.190591]  sit_init_net (net/ipv6/sit.c:1860)
[    2.190605]  ops_init (net/core/net_namespace.c:137)
[    2.190629]  setup_net (net/core/net_namespace.c:446)
[    2.190650]  copy_net_ns (net/core/net_namespace.c:579)
[    2.190668]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.190688]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.190711]  ksys_unshare (kernel/fork.c:3243)
[    2.190725]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.190741]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.190762]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.190781] RIP: 0033:0x7f1aa4177bcb
[    2.190806] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.190871] RSP: 002b:00007ffdab89bf68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    2.190907] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f1aa4177bcb
[    2.190939] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.190968] RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
[    2.191005] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    2.191029] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000080
| [    2.191069] ---[ end trace 0000000000000000 ]---
| [    2.191206] ------------[ cut here ]------------
| [    2.191225] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/146
| [    2.191308] Tainted: [W]=WARN
[    2.191321] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.191347] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.191369] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.191429] RSP: 0018:ff3212f7c038f7b0 EFLAGS: 00010286
[    2.191446] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.191482] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c184c700
[    2.191511] RBP: 0000000000000000 R08: ff125b31c3375490 R09: ff125b31c469a034
[    2.191538] R10: ff125b31c468e120 R11: fefefefefefefeff R12: 0000000000000000
[    2.191565] R13: 0000000000000010 R14: ff125b31c468e000 R15: ff125b31c184c700
[    2.191599] FS:  00007f1aa407dbc0(0000) GS:ff125b323fdc9000(0000) knlGS:0000000000000000
[    2.191627] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.191647] CR2: 00007f1aa40ef0a0 CR3: 000000000442c004 CR4: 0000000000771ef0
[    2.191673] PKRU: 55555554
[    2.191682] Call Trace:
[    2.191690]  <TASK>
[    2.191703]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.191716]  __dev_notify_flags (net/core/dev.c:9787)
[    2.191730]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    2.191744]  veth_newlink (drivers/net/veth.c:1871)
[    2.191761]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    2.191775]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.191793]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.191810]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.191826]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.191840]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.191855]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.191871]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.191885]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.191902] RIP: 0033:0x7f1aa40ef08e
[    2.191917] 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
[    2.191975] RSP: 002b:00007ffdab89b660 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.192006] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f1aa40ef08e
[    2.192033] RDX: 0000000000000078 RSI: 00007ffdab89b6f0 RDI: 0000000000000008
[    2.192062] RBP: 00007ffdab89b670 R08: 0000000000000000 R09: 0000000000000000
[    2.192086] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
[    2.192113] R13: 0000000000000045 R14: 0000000000411f2f R15: 0000000000000080
| [    2.192148] ---[ end trace 0000000000000000 ]---
| [    2.192300] ------------[ cut here ]------------
| [    2.192325] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/146
| [    2.192394] Tainted: [W]=WARN
[    2.192407] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.192433] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.192451] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.192507] RSP: 0018:ff3212f7c038fa30 EFLAGS: 00010286
[    2.192526] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.192550] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c184c700
[    2.192581] RBP: 0000000000000000 R08: ff125b31c3375410 R09: ff125b31c469f034
[    2.192612] R10: ff125b31c468f120 R11: fefefefefefefeff R12: 0000000000000000
[    2.192639] R13: 0000000000000010 R14: ff125b31c468f000 R15: ff125b31c184c700
[    2.192667] FS:  00007f1aa407dbc0(0000) GS:ff125b323fdc9000(0000) knlGS:0000000000000000
[    2.192695] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.192716] CR2: 00007f1aa40ef0a0 CR3: 000000000442c004 CR4: 0000000000771ef0
[    2.192746] PKRU: 55555554
[    2.192755] Call Trace:
[    2.192763]  <TASK>
[    2.192774]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.192793]  __dev_notify_flags (net/core/dev.c:9787)
[    2.192807]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    2.192826]  rtnl_newlink (net/core/rtnetlink.c:3914 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    2.192841]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.192858]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.192875]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.192902]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.192917]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.192936]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.192952]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.192970]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.192990] RIP: 0033:0x7f1aa40ef08e
[    2.193012] 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
[    2.193071] RSP: 002b:00007ffdab89b660 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.193097] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f1aa40ef08e
[    2.193125] RDX: 0000000000000078 RSI: 00007ffdab89b6f0 RDI: 0000000000000008
[    2.193164] RBP: 00007ffdab89b670 R08: 0000000000000000 R09: 0000000000000000
[    2.193191] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
[    2.193219] R13: 0000000000000045 R14: 0000000000411f2f R15: 0000000000000080
| [    2.193263] ---[ end trace 0000000000000000 ]---
| [    2.193415] ------------[ cut here ]------------
| [    2.193439] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [    2.193518] Tainted: [W]=WARN
[    2.193530] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.193553] Workqueue: netns cleanup_net
[    2.193572] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.193589] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.193650] RSP: 0018:ff3212f7c023fce8 EFLAGS: 00010286
[    2.193669] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.193694] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189b300
[    2.193726] RBP: 0000000000000000 R08: ff125b31c33a29d0 R09: ff125b31c4662830
[    2.193751] R10: ff125b31c465e120 R11: fefefefefefefeff R12: 0000000000000000
[    2.193774] R13: 0000000000000011 R14: ff125b31c465e000 R15: ff125b31c189b300
[    2.193800] FS:  0000000000000000(0000) GS:ff125b323fc49000(0000) knlGS:0000000000000000
[    2.193830] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.193855] CR2: 000055c398d86848 CR3: 0000000004401006 CR4: 0000000000771ef0
[    2.193880] PKRU: 55555554
[    2.193889] Call Trace:
[    2.193898]  <TASK>
[    2.193907]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.193930]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    2.193944]  cleanup_net (net/core/net_namespace.c:702)
[    2.193961]  process_one_work (kernel/workqueue.c:3314)
[    2.193985]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.193999]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.194013]  kthread (kernel/kthread.c:436)
[    2.194026]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.194040]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.194056]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.194068]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.194095] ---[ end trace 0000000000000000 ]---
| [    2.194208] ------------[ cut here ]------------
| [    2.194230] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/146
| [    2.194311] Tainted: [W]=WARN
[    2.194331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.194360] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.194380] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.194434] RSP: 0018:ff3212f7c038fcc8 EFLAGS: 00010286
[    2.194452] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.194479] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c184c700
[    2.194504] RBP: 0000000000000000 R08: ff125b31c339e890 R09: ff125b31c46be02c
[    2.194532] R10: ff125b31c46b9120 R11: fefefefefefefeff R12: 0000000000000000
[    2.194561] R13: 0000000000000010 R14: ff125b31c46b9000 R15: ff125b31c184c700
[    2.194588] FS:  00007f1aa407dbc0(0000) GS:ff125b323fdc9000(0000) knlGS:0000000000000000
[    2.194612] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.194633] CR2: 00000000284c0018 CR3: 000000000442c004 CR4: 0000000000771ef0
[    2.194660] PKRU: 55555554
[    2.194670] Call Trace:
[    2.194679]  <TASK>
[    2.194690]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.194704]  register_netdevice (net/core/dev.c:11488)
[    2.194720]  register_netdev (net/core/dev.c:11552)
[    2.194735]  loopback_net_init (drivers/net/loopback.c:218)
[    2.194748]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.194767]  ops_init (net/core/net_namespace.c:137)
[    2.194781]  setup_net (net/core/net_namespace.c:446)
[    2.194798]  copy_net_ns (net/core/net_namespace.c:579)
[    2.194813]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.194836]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.194854]  ksys_unshare (kernel/fork.c:3243)
[    2.194869]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.194884]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.194898]  ? __sysvec_call_function_single (arch/x86/kernel/smp.c:272)
[    2.194917]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.194939] RIP: 0033:0x7f1aa4177bcb
[    2.194952] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.195020] RSP: 002b:00007ffdab89bfc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    2.195045] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f1aa4177bcb
[    2.195068] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.195096] RBP: 000000006a10d2d4 R08: 0000000000000000 R09: 0000000000000000
[    2.195120] R10: 0000000000000000 R11: 0000000000000202 R12: 00005402b80d0120
[    2.195144] R13: 0100000000000000 R14: 000000000000001f R15: 0000000000000080
| [    2.195181] ---[ end trace 0000000000000000 ]---
| [    2.195272] ------------[ cut here ]------------
| [    2.195293] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/146
| [    2.195363] Tainted: [W]=WARN
[    2.195377] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.195401] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.195422] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.195482] RSP: 0018:ff3212f7c038fcb0 EFLAGS: 00010286
[    2.195498] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.195527] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c184c700
[    2.195551] RBP: 0000000000000000 R08: ff125b31c339e910 R09: ff125b31c46c3030
[    2.195575] R10: ff125b31c46be120 R11: fefefefefefefeff R12: 0000000000000000
[    2.195599] R13: 0000000000000010 R14: ff125b31c46be000 R15: ff125b31c184c700
[    2.195629] FS:  00007f1aa407dbc0(0000) GS:ff125b323fdc9000(0000) knlGS:0000000000000000
[    2.195663] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.195684] CR2: 00000000284c0018 CR3: 000000000442c004 CR4: 0000000000771ef0
[    2.195712] PKRU: 55555554
[    2.195721] Call Trace:
[    2.195730]  <TASK>
[    2.195740]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.195753]  register_netdevice (net/core/dev.c:11488)
[    2.195767]  register_netdev (net/core/dev.c:11552)
[    2.195779]  sit_init_net (net/ipv6/sit.c:1860)
[    2.195793]  ops_init (net/core/net_namespace.c:137)
[    2.195807]  setup_net (net/core/net_namespace.c:446)
[    2.195827]  copy_net_ns (net/core/net_namespace.c:579)
[    2.195842]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.195860]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.195878]  ksys_unshare (kernel/fork.c:3243)
[    2.195893]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.195907]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.195922]  ? __sysvec_call_function_single (arch/x86/kernel/smp.c:272)
[    2.195943]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.195959] RIP: 0033:0x7f1aa4177bcb
[    2.195973] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.196035] RSP: 002b:00007ffdab89bfc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    2.196063] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f1aa4177bcb
[    2.196087] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.196116] RBP: 000000006a10d2d4 R08: 0000000000000000 R09: 0000000000000000
[    2.196143] R10: 0000000000000000 R11: 0000000000000202 R12: 00005402b80d0120
[    2.196171] R13: 0100000000000000 R14: 000000000000001f R15: 0000000000000080
| [    2.196205] ---[ end trace 0000000000000000 ]---
| [    2.196423] ------------[ cut here ]------------
| [    2.196448] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/146
| [    2.196520] Tainted: [W]=WARN
[    2.196543] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.196563] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.196582] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.196638] RSP: 0018:ff3212f7c038fcc8 EFLAGS: 00010286
[    2.196656] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.196684] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c184c700
[    2.196707] RBP: 0000000000000000 R08: ff125b31c33ac6d0 R09: ff125b31c46da02c
[    2.196741] R10: ff125b31c46c5120 R11: fefefefefefefeff R12: 0000000000000000
[    2.196767] R13: 0000000000000010 R14: ff125b31c46c5000 R15: ff125b31c184c700
[    2.196797] FS:  00007f1aa407dbc0(0000) GS:ff125b323fdc9000(0000) knlGS:0000000000000000
[    2.196827] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.196848] CR2: 00000000284c0018 CR3: 000000000442c004 CR4: 0000000000771ef0
[    2.196880] PKRU: 55555554
[    2.196890] Call Trace:
[    2.196902]  <TASK>
[    2.196912]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.196926]  register_netdevice (net/core/dev.c:11488)
[    2.196940]  register_netdev (net/core/dev.c:11552)
[    2.196955]  loopback_net_init (drivers/net/loopback.c:218)
[    2.196969]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.196992]  ops_init (net/core/net_namespace.c:137)
[    2.197007]  setup_net (net/core/net_namespace.c:446)
[    2.197021]  copy_net_ns (net/core/net_namespace.c:579)
[    2.197032]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.197052]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.197069]  ksys_unshare (kernel/fork.c:3243)
[    2.197083]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.197097]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.197111]  ? __sysvec_call_function_single (arch/x86/kernel/smp.c:272)
[    2.197131]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.197151] RIP: 0033:0x7f1aa4177bcb
[    2.197164] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.197219] RSP: 002b:00007ffdab89bfc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    2.197243] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f1aa4177bcb
[    2.197268] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.197294] RBP: 000000006a10d2d4 R08: 0000000000000000 R09: 0000000000000000
[    2.197322] R10: 0000000000000000 R11: 0000000000000202 R12: 00005402b80d0120
[    2.197347] R13: 0100000000000000 R14: 000000000000001f R15: 0000000000000080
| [    2.197386] ---[ end trace 0000000000000000 ]---
| [    2.197466] ------------[ cut here ]------------
| [    2.197484] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/146
| [    2.197557] Tainted: [W]=WARN
[    2.197574] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.197599] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.197622] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.197676] RSP: 0018:ff3212f7c038fcb0 EFLAGS: 00010286
[    2.197692] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.197718] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c184c700
[    2.197745] RBP: 0000000000000000 R08: ff125b31c440bd50 R09: ff125b31c46df030
[    2.197773] R10: ff125b31c46da120 R11: fefefefefefefeff R12: 0000000000000000
[    2.197800] R13: 0000000000000010 R14: ff125b31c46da000 R15: ff125b31c184c700
[    2.197829] FS:  00007f1aa407dbc0(0000) GS:ff125b323fdc9000(0000) knlGS:0000000000000000
[    2.197855] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.197875] CR2: 00000000284c0018 CR3: 000000000442c004 CR4: 0000000000771ef0
[    2.197903] PKRU: 55555554
[    2.197912] Call Trace:
[    2.197921]  <TASK>
[    2.197936]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.197953]  register_netdevice (net/core/dev.c:11488)
[    2.197966]  register_netdev (net/core/dev.c:11552)
[    2.197979]  sit_init_net (net/ipv6/sit.c:1860)
[    2.197997]  ops_init (net/core/net_namespace.c:137)
[    2.198015]  setup_net (net/core/net_namespace.c:446)
[    2.198030]  copy_net_ns (net/core/net_namespace.c:579)
[    2.198043]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.198064]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.198087]  ksys_unshare (kernel/fork.c:3243)
[    2.198103]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.198116]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.198137]  ? __sysvec_call_function_single (arch/x86/kernel/smp.c:272)
[    2.198155]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.198172] RIP: 0033:0x7f1aa4177bcb
[    2.198185] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.198242] RSP: 002b:00007ffdab89bfc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    2.198269] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f1aa4177bcb
[    2.198292] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.198314] RBP: 000000006a10d2d4 R08: 0000000000000000 R09: 0000000000000000
[    2.198342] R10: 0000000000000000 R11: 0000000000000202 R12: 00005402b80d0120
[    2.198371] R13: 0100000000000000 R14: 000000000000001f R15: 0000000000000080
| [    2.198410] ---[ end trace 0000000000000000 ]---
| [    2.205049] ------------[ cut here ]------------
| [    2.205080] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [    2.205156] Tainted: [W]=WARN
[    2.205167] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.205192] Workqueue: netns cleanup_net
[    2.205205] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.205220] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.205267] RSP: 0018:ff3212f7c023fc78 EFLAGS: 00010286
[    2.205282] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.205305] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189b300
[    2.205330] RBP: 0000000000000000 R08: ff125b31c3375410 R09: ff125b31c46a3834
[    2.205359] R10: ff125b31c468f120 R11: fefefefefefefeff R12: 0000000000000000
[    2.205382] R13: 0000000000000011 R14: ff125b31c468f000 R15: ff125b31c189b300
[    2.205413] FS:  0000000000000000(0000) GS:ff125b323fc49000(0000) knlGS:0000000000000000
[    2.205434] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.205452] CR2: 000055c398d86848 CR3: 0000000004401006 CR4: 0000000000771ef0
[    2.205475] PKRU: 55555554
[    2.205483] Call Trace:
[    2.205494]  <TASK>
[    2.205505]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.205521]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    2.205537]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    2.205550]  cleanup_net (net/core/net_namespace.c:702)
[    2.205563]  process_one_work (kernel/workqueue.c:3314)
[    2.205575]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.205587]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.205599]  kthread (kernel/kthread.c:436)
[    2.205612]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.205627]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.205643]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.205654]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.205676] ---[ end trace 0000000000000000 ]---
| [    2.205743] ------------[ cut here ]------------
| [    2.205758] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [    2.205827] Tainted: [W]=WARN
[    2.205841] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.205868] Workqueue: netns cleanup_net
[    2.205880] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.205897] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.205954] RSP: 0018:ff3212f7c023fc78 EFLAGS: 00010286
[    2.205969] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.205997] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189b300
[    2.206029] RBP: 0000000000000000 R08: ff125b31c3375490 R09: ff125b31c4692034
[    2.206054] R10: ff125b31c468e120 R11: fefefefefefefeff R12: 0000000000000000
[    2.206077] R13: 0000000000000011 R14: ff125b31c468e000 R15: ff125b31c189b300
[    2.206105] FS:  0000000000000000(0000) GS:ff125b323fc49000(0000) knlGS:0000000000000000
[    2.206131] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.206151] CR2: 000055c398d86848 CR3: 0000000004401006 CR4: 0000000000771ef0
[    2.206177] PKRU: 55555554
[    2.206184] Call Trace:
[    2.206193]  <TASK>
[    2.206200]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.206221]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    2.206239]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    2.206252]  cleanup_net (net/core/net_namespace.c:702)
[    2.206269]  process_one_work (kernel/workqueue.c:3314)
[    2.206284]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.206302]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.206320]  kthread (kernel/kthread.c:436)
[    2.206342]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.206353]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.206365]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.206379]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.206400] ---[ end trace 0000000000000000 ]---
| [    2.206460] ------------[ cut here ]------------
| [    2.206479] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [    2.206547] Tainted: [W]=WARN
[    2.206559] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.206581] Workqueue: netns cleanup_net
[    2.206593] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.206608] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.206670] RSP: 0018:ff3212f7c023fc78 EFLAGS: 00010286
[    2.206685] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.206708] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189b300
[    2.206731] RBP: 0000000000000000 R08: ff125b31c33a2950 R09: ff125b31c464902c
[    2.206752] R10: ff125b31c4659120 R11: fefefefefefefeff R12: 0000000000000000
[    2.206777] R13: 0000000000000011 R14: ff125b31c4659000 R15: ff125b31c189b300
[    2.206798] FS:  0000000000000000(0000) GS:ff125b323fc49000(0000) knlGS:0000000000000000
[    2.206824] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.206846] CR2: 000055c398d86848 CR3: 0000000004401006 CR4: 0000000000771ef0
[    2.206872] PKRU: 55555554
[    2.206879] Call Trace:
[    2.206888]  <TASK>
[    2.206895]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.206911]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    2.206928]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    2.206939]  cleanup_net (net/core/net_namespace.c:702)
[    2.206951]  process_one_work (kernel/workqueue.c:3314)
[    2.206963]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.206979]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.206999]  kthread (kernel/kthread.c:436)
[    2.207010]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.207021]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.207033]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.207044]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.207064] ---[ end trace 0000000000000000 ]---
| [    2.208585] ------------[ cut here ]------------
| [    2.208611] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/146
| [    2.208687] Tainted: [W]=WARN
[    2.208702] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.208723] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.208744] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.208802] RSP: 0018:ff3212f7c038f7b0 EFLAGS: 00010286
[    2.208826] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.208854] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c184ca00
[    2.208882] RBP: 0000000000000000 R08: ff125b31c5c2be50 R09: ff125b31c465d034
[    2.208907] R10: ff125b31c46de120 R11: fefefefefefefeff R12: 0000000000000000
[    2.208932] R13: 0000000000000010 R14: ff125b31c46de000 R15: ff125b31c184ca00
[    2.208961] FS:  00007f1aa407dbc0(0000) GS:ff125b323fdc9000(0000) knlGS:0000000000000000
[    2.208996] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.209016] CR2: 00000000284d6218 CR3: 000000000442c004 CR4: 0000000000771ef0
[    2.209049] PKRU: 55555554
[    2.209062] Call Trace:
[    2.209072]  <TASK>
[    2.209082]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.209099]  __dev_notify_flags (net/core/dev.c:9787)
[    2.209117]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    2.209142]  veth_newlink (drivers/net/veth.c:1871)
[    2.209158]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    2.209173]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.209196]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.209212]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.209230]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.209248]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.209266]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.209279]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.209294]  ? __sysvec_call_function_single (arch/x86/kernel/smp.c:272)
[    2.209313]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.209331] RIP: 0033:0x7f1aa40fae32
[    2.209344] Code: 08 0f 85 91 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 91 41 ff ff 49    	test   %edx,0x49ffff41(%rcx)
   8:	89 fb                	mov    %edi,%ebx
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[    2.209414] RSP: 002b:00007ffdab89b6a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    2.209444] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f1aa40fae32
[    2.209470] RDX: 0000000000000078 RSI: 00007ffdab89b750 RDI: 0000000000000009
[    2.209496] RBP: 00007ffdab89b6d0 R08: 0000000000000000 R09: 0000000000000000
[    2.209525] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000009
[    2.209550] R13: 0000000000000045 R14: 00000000004120d0 R15: 0000000000000080
| [    2.209592] ---[ end trace 0000000000000000 ]---
| [    2.209764] ------------[ cut here ]------------
| [    2.209786] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/146
| [    2.209863] Tainted: [W]=WARN
[    2.209887] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.209907] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.209929] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.209993] RSP: 0018:ff3212f7c038fa30 EFLAGS: 00010286
[    2.210011] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.210035] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c184ca00
[    2.210062] RBP: 0000000000000000 R08: ff125b31c5c2bdd0 R09: ff125b31c4703034
[    2.210099] R10: ff125b31c46df120 R11: fefefefefefefeff R12: 0000000000000000
[    2.210124] R13: 0000000000000010 R14: ff125b31c46df000 R15: ff125b31c184ca00
[    2.210155] FS:  00007f1aa407dbc0(0000) GS:ff125b323fdc9000(0000) knlGS:0000000000000000
[    2.210181] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.210208] CR2: 00000000284d6218 CR3: 000000000442c004 CR4: 0000000000771ef0
[    2.210237] PKRU: 55555554
[    2.210246] Call Trace:
[    2.210257]  <TASK>
[    2.210266]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.210282]  __dev_notify_flags (net/core/dev.c:9787)
[    2.210324]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    2.210350]  rtnl_newlink (net/core/rtnetlink.c:3914 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    2.210373]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.210394]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.210417]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.210432]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.210447]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.210475]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.210492]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.210511]  ? __sysvec_call_function_single (arch/x86/kernel/smp.c:272)
[    2.210536]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.210554] RIP: 0033:0x7f1aa40fae32
[    2.210568] Code: 08 0f 85 91 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 91 41 ff ff 49    	test   %edx,0x49ffff41(%rcx)
   8:	89 fb                	mov    %edi,%ebx
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[    2.210632] RSP: 002b:00007ffdab89b6a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    2.210659] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f1aa40fae32
[    2.210713] RDX: 0000000000000078 RSI: 00007ffdab89b750 RDI: 0000000000000009
[    2.210740] RBP: 00007ffdab89b6d0 R08: 0000000000000000 R09: 0000000000000000
[    2.210764] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000009
[    2.210801] R13: 0000000000000045 R14: 00000000004120d0 R15: 0000000000000080
| [    2.210837] ---[ end trace 0000000000000000 ]---
| [    2.210885] ------------[ cut here ]------------
| [    2.210905] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/146
| [    2.210998] Tainted: [W]=WARN
[    2.211012] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.211043] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.211064] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.211133] RSP: 0018:ff3212f7c038f8e0 EFLAGS: 00010286
[    2.211165] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.211202] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c184c700
[    2.211229] RBP: 0000000000000000 R08: ff125b31c5c2be50 R09: ff125b31c4703034
[    2.211256] R10: ff125b31c46de120 R11: fefefefefefefeff R12: 0000000000000000
[    2.211292] R13: 0000000000000010 R14: ff125b31c46de000 R15: ff125b31c184c700
[    2.211318] FS:  00007f1aa407dbc0(0000) GS:ff125b323fdc9000(0000) knlGS:0000000000000000
[    2.211362] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.211382] CR2: 00000000284d6218 CR3: 000000000442c004 CR4: 0000000000771ef0
[    2.211414] PKRU: 55555554
[    2.211429] Call Trace:
[    2.211438]  <TASK>
[    2.211464]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.211480]  __dev_notify_flags (net/core/dev.c:9787)
[    2.211510]  netif_change_flags (net/core/dev.c:9820)
[    2.211525]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    2.211539]  ? netlink_set_err (net/netlink/af_netlink.c:1624 (discriminator 3))
[    2.211563]  ? rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:971 net/core/rtnetlink.c:4529)
[    2.211584]  ? __nla_validate_parse (lib/nlattr.c:620)
[    2.211605]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    2.211619]  ? netdev_run_todo (net/core/dev.c:11703)
[    2.211636]  ? __dev_notify_flags (net/core/dev.c:9787)
[    2.211663]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    2.211684]  ? kmalloc_reserve (net/core/skbuff.c:613 (discriminator 7))
[    2.211701]  ? __alloc_skb (net/core/skbuff.c:702 (discriminator 7))
[    2.211718]  ? netlink_attachskb (net/netlink/af_netlink.c:1222)
[    2.211739]  ? file_ns_capable (./include/linux/security.h:701 kernel/capability.c:440)
[    2.211759]  ? netlink_net_capable (net/netlink/af_netlink.c:852 (discriminator 1) net/netlink/af_netlink.c:870 (discriminator 1) net/netlink/af_netlink.c:901 (discriminator 1))
[    2.211790]  ? ns_capable (./include/linux/security.h:701 kernel/capability.c:342 kernel/capability.c:363)
[    2.211804]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:871 net/core/rtnetlink.c:7059)
[    2.211825]  ? netlink_unicast (net/netlink/af_netlink.c:1270 net/netlink/af_netlink.c:1360)
[    2.211841]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.211858]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.211873]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.211890]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.211915]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.211931]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.211956]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.211975]  ? __sysvec_call_function_single (arch/x86/kernel/smp.c:272)
[    2.212002]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.212020] RIP: 0033:0x7f1aa40fae32
[    2.212031] Code: 08 0f 85 91 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 91 41 ff ff 49    	test   %edx,0x49ffff41(%rcx)
   8:	89 fb                	mov    %edi,%ebx
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[    2.212085] RSP: 002b:00007ffdab89b6b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    2.212120] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f1aa40fae32
[    2.212145] RDX: 0000000000000020 RSI: 00007ffdab89b730 RDI: 0000000000000009
[    2.212169] RBP: 00007ffdab89b6e0 R08: 0000000000000000 R09: 0000000000000000
[    2.212210] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000050ef2311
[    2.212234] R13: 0100000000000000 R14: 00005402b80d0120 R15: 0100000000000000
| [    2.212294] ---[ end trace 0000000000000000 ]---
| [    2.212404] ------------[ cut here ]------------
| [    2.212437] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/146
| [    2.212535] Tainted: [W]=WARN
[    2.212547] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.212582] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.212603] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.212671] RSP: 0018:ff3212f7c038f8e0 EFLAGS: 00010286
[    2.212690] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.212722] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c184ca00
[    2.212761] RBP: 0000000000000000 R08: ff125b31c5c2bdd0 R09: ff125b31c4702034
[    2.212795] R10: ff125b31c46df120 R11: fefefefefefefeff R12: 0000000000000000
[    2.212832] R13: 0000000000000010 R14: ff125b31c46df000 R15: ff125b31c184ca00
[    2.212858] FS:  00007f1aa407dbc0(0000) GS:ff125b323fdc9000(0000) knlGS:0000000000000000
[    2.212902] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.212930] CR2: 00007f1aa3879cd4 CR3: 000000000442c004 CR4: 0000000000771ef0
[    2.212958] PKRU: 55555554
[    2.212967] Call Trace:
[    2.212985]  <TASK>
[    2.212994]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.213025]  __dev_notify_flags (net/core/dev.c:9787)
[    2.213049]  netif_change_flags (net/core/dev.c:9820)
[    2.213075]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    2.213092]  ? alloc_pages_mpol (mm/mempolicy.c:2490)
[    2.213109]  ? __pte_offset_map (./include/linux/rcupdate.h:836 mm/pgtable-generic.c:290)
[    2.213134]  ? walk_pte_range_inner (mm/pagewalk.c:39)
[    2.213165]  ? __nla_validate_parse (lib/nlattr.c:620)
[    2.213187]  ? sysvec_irq_work (arch/x86/kernel/irq_work.c:17)
[    2.213201]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    2.213225]  ? idr_replace (lib/idr.c:304)
[    2.213252]  ? arch_irq_work_raise (./arch/x86/include/asm/apic.h:455 (discriminator 1) arch/x86/kernel/irq_work.c:31 (discriminator 1))
[    2.213274]  ? cpu_util.constprop.0 (kernel/sched/fair.c:8322 (discriminator 1))
[    2.213295]  ? sched_balance_find_dst_group (kernel/sched/fair.c:8354 kernel/sched/fair.c:11037 kernel/sched/fair.c:11167)
[    2.213325]  ? file_ns_capable (./include/linux/security.h:701 kernel/capability.c:440)
[    2.213354]  ? netlink_net_capable (net/netlink/af_netlink.c:852 (discriminator 1) net/netlink/af_netlink.c:870 (discriminator 1) net/netlink/af_netlink.c:901 (discriminator 1))
[    2.213377]  ? ns_capable (./include/linux/security.h:701 kernel/capability.c:342 kernel/capability.c:363)
[    2.213402]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:871 net/core/rtnetlink.c:7059)
[    2.213419]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.213449]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.213464]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.213481]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.213496]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.213522]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.213541]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.213555]  ? __sysvec_call_function_single (arch/x86/kernel/smp.c:272)
[    2.213572]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.213590] RIP: 0033:0x7f1aa40fae32
[    2.213608] Code: 08 0f 85 91 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 91 41 ff ff 49    	test   %edx,0x49ffff41(%rcx)
   8:	89 fb                	mov    %edi,%ebx
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[    2.213692] RSP: 002b:00007ffdab89b6b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    2.213719] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f1aa40fae32
[    2.213750] RDX: 0000000000000020 RSI: 00007ffdab89b730 RDI: 0000000000000009
[    2.213799] RBP: 00007ffdab89b6e0 R08: 0000000000000000 R09: 0000000000000000
[    2.213828] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000035945c51
[    2.213853] R13: 0100000000000000 R14: 00000100b80d0120 R15: 0100000000000000
| [    2.213887] ---[ end trace 0000000000000000 ]---
| [    2.213977] ------------[ cut here ]------------
| [    2.214048] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: 2/148
| [    2.214209] Tainted: [W]=WARN
[    2.214278] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.214357] Workqueue: events_unbound linkwatch_event
[    2.214411] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.214464] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.214570] RSP: 0018:ff3212f7c039fd50 EFLAGS: 00010286
[    2.214638] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[    2.214707] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189c400
[    2.214781] RBP: 0000000000000000 R08: ff125b31c5c2be50 R09: ff125b31c2f4a034
[    2.214847] R10: ff125b31c46de120 R11: fefefefefefefeff R12: 0000000000000000
[    2.214921] R13: 0000000000000010 R14: ff125b31c46de000 R15: ff125b31c189c400
[    2.215008] FS:  0000000000000000(0000) GS:ff125b323fd49000(0000) knlGS:0000000000000000
[    2.215073] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.215129] CR2: 0000000000401960 CR3: 000000000442c005 CR4: 0000000000771ef0
[    2.215199] PKRU: 55555554
[    2.215255] Call Trace:
[    2.215315]  <TASK>
[    2.215369]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.215420]  netif_state_change (net/core/dev.c:1605)
[    2.215485]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    2.215550]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    2.215602]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    2.215656]  process_one_work (kernel/workqueue.c:3314)
[    2.215719]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.215783]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.215848]  kthread (kernel/kthread.c:436)
[    2.215903]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.215962]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.216037]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.216087]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.216181] ---[ end trace 0000000000000000 ]---
| [    2.242067] ------------[ cut here ]------------
| [    2.242166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [    2.242323] Tainted: [W]=WARN
[    2.242345] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.242383] Workqueue: netns cleanup_net
[    2.242410] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.242441] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.242550] RSP: 0018:ff3212f7c023fce8 EFLAGS: 00010286
[    2.242580] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.242621] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189b300
[    2.242665] RBP: 0000000000000000 R08: ff125b31c3375390 R09: ff125b31c467a830
[    2.242714] R10: ff125b31c468a120 R11: fefefefefefefeff R12: 0000000000000000
[    2.242762] R13: 0000000000000011 R14: ff125b31c468a000 R15: ff125b31c189b300
[    2.242814] FS:  0000000000000000(0000) GS:ff125b323fc49000(0000) knlGS:0000000000000000
[    2.242866] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.242901] CR2: 00007f1a9c001908 CR3: 000000000442c002 CR4: 0000000000771ef0
[    2.242947] PKRU: 55555554
[    2.242962] Call Trace:
[    2.242990]  <TASK>
[    2.243009]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.243043]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    2.243069]  cleanup_net (net/core/net_namespace.c:702)
[    2.243092]  process_one_work (kernel/workqueue.c:3314)
[    2.243120]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.243144]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.243167]  kthread (kernel/kthread.c:436)
[    2.243192]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.243214]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.243238]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.243260]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.243300] ---[ end trace 0000000000000000 ]---
| [    2.260019] ------------[ cut here ]------------
| [    2.260064] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [    2.260191] Tainted: [W]=WARN
[    2.260212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.260247] Workqueue: netns cleanup_net
[    2.260270] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.260298] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.260391] RSP: 0018:ff3212f7c023fc78 EFLAGS: 00010286
[    2.260418] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.260458] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189b300
[    2.260499] RBP: 0000000000000000 R08: ff125b31c3375290 R09: ff125b31c467d02c
[    2.260537] R10: ff125b31c466d120 R11: fefefefefefefeff R12: 0000000000000000
[    2.260575] R13: 0000000000000011 R14: ff125b31c466d000 R15: ff125b31c189b300
[    2.260617] FS:  0000000000000000(0000) GS:ff125b323fc49000(0000) knlGS:0000000000000000
[    2.260667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.260702] CR2: 00007f1a9c001908 CR3: 000000000442c002 CR4: 0000000000771ef0
[    2.260739] PKRU: 55555554
[    2.260753] Call Trace:
[    2.260766]  <TASK>
[    2.260779]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.260808]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    2.260883]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    2.260906]  cleanup_net (net/core/net_namespace.c:702)
[    2.260927]  process_one_work (kernel/workqueue.c:3314)
[    2.260947]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.260969]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.260993]  kthread (kernel/kthread.c:436)
[    2.261015]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.261035]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.261056]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.261077]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.261113] ---[ end trace 0000000000000000 ]---
| [    3.219115] ------------[ cut here ]------------
| [    3.219253] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: 1/56
| [    3.219465] Tainted: [W]=WARN
[    3.219523] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.219597] Workqueue: events_unbound linkwatch_event
[    3.219669] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.219735] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.219881] RSP: 0018:ff3212f7c01ebd50 EFLAGS: 00010286
[    3.219966] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[    3.220059] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c316fa00
[    3.220139] RBP: 0000000000000000 R08: ff125b31c5c2bdd0 R09: ff125b31c2f4a034
[    3.221427] R10: ff125b31c46df120 R11: fefefefefefefeff R12: 0000000000000000
[    3.221509] R13: 0000000000000010 R14: ff125b31c46df000 R15: ff125b31c316fa00
[    3.221591] FS:  0000000000000000(0000) GS:ff125b323fd49000(0000) knlGS:0000000000000000
[    3.221672] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.221743] CR2: 00007f1aa3877ff0 CR3: 000000000442c005 CR4: 0000000000771ef0
[    3.221829] PKRU: 55555554
[    3.221879] Call Trace:
[    3.221929]  <TASK>
[    3.221989]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.222047]  netif_state_change (net/core/dev.c:1605)
[    3.222105]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    3.222163]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    3.222228]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    3.222287]  process_one_work (kernel/workqueue.c:3314)
[    3.222345]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    3.222403]  ? rescuer_thread (kernel/workqueue.c:3672)
[    3.222461]  kthread (kernel/kthread.c:436)
[    3.222518]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    3.222576]  ret_from_fork (arch/x86/kernel/process.c:158)
[    3.222633]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    3.222690]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    3.222798] ---[ end trace 0000000000000000 ]---
| [   11.773184] ------------[ cut here ]------------
| [   11.773236] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [   11.774045] Tainted: [W]=WARN
[   11.774068] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.774106] Workqueue: netns cleanup_net
[   11.774131] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.774164] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.774256] RSP: 0018:ff3212f7c023fce8 EFLAGS: 00010286
[   11.774285] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   11.774328] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189b300
[   11.774364] RBP: 0000000000000000 R08: ff125b31c339e910 R09: ff125b31c46ac030
[   11.774411] R10: ff125b31c46be120 R11: fefefefefefefeff R12: 0000000000000000
[   11.774450] R13: 0000000000000011 R14: ff125b31c46be000 R15: ff125b31c189b300
[   11.774496] FS:  0000000000000000(0000) GS:ff125b323fc49000(0000) knlGS:0000000000000000
[   11.774542] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.774581] CR2: 00007fe6df6af680 CR3: 0000000008843004 CR4: 0000000000771ef0
[   11.774627] PKRU: 55555554
[   11.774641] Call Trace:
[   11.774662]  <TASK>
[   11.774676]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.774708]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   11.774729]  cleanup_net (net/core/net_namespace.c:702)
[   11.774752]  process_one_work (kernel/workqueue.c:3314)
[   11.774776]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   11.774797]  ? rescuer_thread (kernel/workqueue.c:3672)
[   11.774821]  kthread (kernel/kthread.c:436)
[   11.774851]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.774873]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.774897]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.774921]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   11.774960] ---[ end trace 0000000000000000 ]---
| [   11.775096] ------------[ cut here ]------------
| [   11.775123] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [   11.775238] Tainted: [W]=WARN
[   11.775260] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.775295] Workqueue: netns cleanup_net
[   11.775318] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.775347] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.775445] RSP: 0018:ff3212f7c023fce8 EFLAGS: 00010286
[   11.775479] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   11.775518] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189b300
[   11.775560] RBP: 0000000000000000 R08: ff125b31c440bd50 R09: ff125b31c46e0030
[   11.775601] R10: ff125b31c46da120 R11: fefefefefefefeff R12: 0000000000000000
[   11.775640] R13: 0000000000000011 R14: ff125b31c46da000 R15: ff125b31c189b300
[   11.775683] FS:  0000000000000000(0000) GS:ff125b323fc49000(0000) knlGS:0000000000000000
[   11.775732] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.775763] CR2: 00007fe6df6af680 CR3: 0000000008843004 CR4: 0000000000771ef0
[   11.775804] PKRU: 55555554
[   11.775818] Call Trace:
[   11.775831]  <TASK>
[   11.775849]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.775878]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   11.775902]  cleanup_net (net/core/net_namespace.c:702)
[   11.775924]  process_one_work (kernel/workqueue.c:3314)
[   11.775945]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   11.775965]  ? rescuer_thread (kernel/workqueue.c:3672)
[   11.775991]  kthread (kernel/kthread.c:436)
[   11.776014]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.776037]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.776059]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.776078]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   11.776119] ---[ end trace 0000000000000000 ]---
| [   11.780034] ------------[ cut here ]------------
| [   11.780082] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [   11.780209] Tainted: [W]=WARN
[   11.780232] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.780270] Workqueue: netns cleanup_net
[   11.780292] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.780321] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.780421] RSP: 0018:ff3212f7c023fc08 EFLAGS: 00010286
[   11.780452] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[   11.780492] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189b300
[   11.780535] RBP: 0000000000000000 R08: ff125b31c5c2bdd0 R09: ff125b31c46da034
[   11.780578] R10: ff125b31c46df120 R11: fefefefefefefeff R12: 0000000000000000
[   11.780617] R13: 0000000000000010 R14: ff125b31c46df000 R15: ff125b31c189b300
[   11.780663] FS:  0000000000000000(0000) GS:ff125b323fc49000(0000) knlGS:0000000000000000
[   11.780708] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.780740] CR2: 00007fe6df6af680 CR3: 0000000008843004 CR4: 0000000000771ef0
[   11.780781] PKRU: 55555554
[   11.780796] Call Trace:
[   11.780809]  <TASK>
[   11.780824]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   11.780849]  netif_close_many (net/core/dev.c:1804)
[   11.780874]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   11.780898]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   11.780927]  ? xas_load (lib/xarray.c:239)
[   11.780952]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   11.780985]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   11.781008]  cleanup_net (net/core/net_namespace.c:702)
[   11.781032]  process_one_work (kernel/workqueue.c:3314)
[   11.781054]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   11.781077]  ? rescuer_thread (kernel/workqueue.c:3672)
[   11.781100]  kthread (kernel/kthread.c:436)
[   11.781118]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.781142]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.781165]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.781188]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   11.781229] ---[ end trace 0000000000000000 ]---
| [   11.784396] ------------[ cut here ]------------
| [   11.784430] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [   11.784549] Tainted: [W]=WARN
[   11.784569] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.784611] Workqueue: netns cleanup_net
[   11.784633] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.784660] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.784751] RSP: 0018:ff3212f7c023fc08 EFLAGS: 00010286
[   11.784783] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[   11.784825] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189b300
[   11.784873] RBP: 0000000000000000 R08: ff125b31c5c2be50 R09: ff125b31c46da034
[   11.784917] R10: ff125b31c46de120 R11: fefefefefefefeff R12: 0000000000000000
[   11.784959] R13: 0000000000000010 R14: ff125b31c46de000 R15: ff125b31c189b300
[   11.785007] FS:  0000000000000000(0000) GS:ff125b323fc49000(0000) knlGS:0000000000000000
[   11.785050] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.785089] CR2: 00007fe6df6af680 CR3: 0000000008843004 CR4: 0000000000771ef0
[   11.785130] PKRU: 55555554
[   11.785144] Call Trace:
[   11.785163]  <TASK>
[   11.785177]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   11.785202]  netif_close_many (net/core/dev.c:1804)
[   11.785224]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   11.785253]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   11.785288]  ? xas_load (lib/xarray.c:239)
[   11.785309]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   11.785337]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   11.785356]  cleanup_net (net/core/net_namespace.c:702)
[   11.785376]  process_one_work (kernel/workqueue.c:3314)
[   11.785401]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   11.785424]  ? rescuer_thread (kernel/workqueue.c:3672)
[   11.785444]  kthread (kernel/kthread.c:436)
[   11.785467]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.785488]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.785511]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.785537]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   11.785574] ---[ end trace 0000000000000000 ]---
| [   11.785791] ------------[ cut here ]------------
| [   11.785821] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [   11.785943] Tainted: [W]=WARN
[   11.785962] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.785990] Workqueue: netns cleanup_net
[   11.786015] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.786042] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.786132] RSP: 0018:ff3212f7c023fc78 EFLAGS: 00010286
[   11.786160] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   11.786199] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189b300
[   11.786240] RBP: 0000000000000000 R08: ff125b31c5c2bdd0 R09: ff125b31c46e5034
[   11.786283] R10: ff125b31c46df120 R11: fefefefefefefeff R12: 0000000000000000
[   11.786322] R13: 0000000000000011 R14: ff125b31c46df000 R15: ff125b31c189b300
[   11.786364] FS:  0000000000000000(0000) GS:ff125b323fc49000(0000) knlGS:0000000000000000
[   11.786409] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.786442] CR2: 00007fe6df6af680 CR3: 0000000008843004 CR4: 0000000000771ef0
[   11.786486] PKRU: 55555554
[   11.786501] Call Trace:
[   11.786515]  <TASK>
[   11.786529]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.786562]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   11.786589]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   11.786609]  cleanup_net (net/core/net_namespace.c:702)
[   11.786633]  process_one_work (kernel/workqueue.c:3314)
[   11.786656]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   11.786675]  ? rescuer_thread (kernel/workqueue.c:3672)
[   11.786694]  kthread (kernel/kthread.c:436)
[   11.786713]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.786733]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.786755]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.786779]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   11.786813] ---[ end trace 0000000000000000 ]---
| [   11.786899] ------------[ cut here ]------------
| [   11.786926] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [   11.787037] Tainted: [W]=WARN
[   11.787060] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.787095] Workqueue: netns cleanup_net
[   11.787118] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.787148] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.787244] RSP: 0018:ff3212f7c023fc78 EFLAGS: 00010286
[   11.787271] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   11.787311] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189b300
[   11.787351] RBP: 0000000000000000 R08: ff125b31c339e890 R09: ff125b31c46ae82c
[   11.787389] R10: ff125b31c46b9120 R11: fefefefefefefeff R12: 0000000000000000
[   11.787431] R13: 0000000000000011 R14: ff125b31c46b9000 R15: ff125b31c189b300
[   11.787474] FS:  0000000000000000(0000) GS:ff125b323fc49000(0000) knlGS:0000000000000000
[   11.787515] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.787551] CR2: 00007fe6df6af680 CR3: 0000000008843004 CR4: 0000000000771ef0
[   11.787594] PKRU: 55555554
[   11.787611] Call Trace:
[   11.787626]  <TASK>
[   11.787642]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.787673]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   11.787705]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   11.787727]  cleanup_net (net/core/net_namespace.c:702)
[   11.787748]  process_one_work (kernel/workqueue.c:3314)
[   11.787769]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   11.787792]  ? rescuer_thread (kernel/workqueue.c:3672)
[   11.787814]  kthread (kernel/kthread.c:436)
[   11.787833]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.787853]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.787878]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.787899]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   11.787933] ---[ end trace 0000000000000000 ]---
| [   11.788009] ------------[ cut here ]------------
| [   11.788035] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [   11.788141] Tainted: [W]=WARN
[   11.788162] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.788200] Workqueue: netns cleanup_net
[   11.788221] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.788250] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.788342] RSP: 0018:ff3212f7c023fc78 EFLAGS: 00010286
[   11.788373] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   11.788415] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189b300
[   11.788455] RBP: 0000000000000000 R08: ff125b31c5c2be50 R09: ff125b31c46e7834
[   11.788492] R10: ff125b31c46de120 R11: fefefefefefefeff R12: 0000000000000000
[   11.788533] R13: 0000000000000011 R14: ff125b31c46de000 R15: ff125b31c189b300
[   11.788578] FS:  0000000000000000(0000) GS:ff125b323fc49000(0000) knlGS:0000000000000000
[   11.788618] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.788652] CR2: 00007fe6df6af680 CR3: 0000000008843004 CR4: 0000000000771ef0
[   11.788691] PKRU: 55555554
[   11.788709] Call Trace:
[   11.788724]  <TASK>
[   11.788738]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.788768]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   11.788795]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   11.788814]  cleanup_net (net/core/net_namespace.c:702)
[   11.788837]  process_one_work (kernel/workqueue.c:3314)
[   11.788862]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   11.788885]  ? rescuer_thread (kernel/workqueue.c:3672)
[   11.788906]  kthread (kernel/kthread.c:436)
[   11.788925]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.788947]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.788969]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.788994]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   11.789038] ---[ end trace 0000000000000000 ]---
| [   11.789105] ------------[ cut here ]------------
| [   11.789130] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [   11.789246] Tainted: [W]=WARN
[   11.789267] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.789305] Workqueue: netns cleanup_net
[   11.789324] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.789356] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 ac fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 ac fb ff       	call   0xfffffffffffbacb2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 ac fb ff       	call   0xfffffffffffbac88
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.789455] RSP: 0018:ff3212f7c023fc78 EFLAGS: 00010286
[   11.789482] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   11.789529] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff125b31c189b300
[   11.789575] RBP: 0000000000000000 R08: ff125b31c33ac6d0 R09: ff125b31c46ce82c
[   11.789620] R10: ff125b31c46c5120 R11: fefefefefefefeff R12: 0000000000000000
[   11.789669] R13: 0000000000000011 R14: ff125b31c46c5000 R15: ff125b31c189b300
[   11.789710] FS:  0000000000000000(0000) GS:ff125b323fc49000(0000) knlGS:0000000000000000
[   11.789751] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.789786] CR2: 00007fe6df6af680 CR3: 0000000008843004 CR4: 0000000000771ef0
[   11.789827] PKRU: 55555554
[   11.789841] Call Trace:
[   11.789857]  <TASK>
[   11.789872]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.789903]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   11.789926]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   11.789946]  cleanup_net (net/core/net_namespace.c:702)
[   11.789970]  process_one_work (kernel/workqueue.c:3314)
[   11.789993]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   11.790020]  ? rescuer_thread (kernel/workqueue.c:3672)
[   11.790041]  kthread (kernel/kthread.c:436)
[   11.790064]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   11.790087]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.790108]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:veth_newlink
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:default_device_exit_batch:ops_undo_list:cleanup_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:netif_change_flags:rtnl_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:default_device_exit_batch
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:sit_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:rtnl_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_state_change:__linkwatch_run_queue:linkwatch_event
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:ops_undo_list:cleanup_net:process_one_work
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init