======================================
| 0
| xx__-> [    2.204245] ------------[ cut here ]------------
| [    2.204301] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/147
| [    2.204432] Tainted: [W]=WARN
[    2.204450] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.204484] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.204513] 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
[    2.204607] RSP: 0018:ff6fadbe003b7cc8 EFLAGS: 00010286
[    2.204647] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.204687] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4d00
[    2.204732] RBP: 0000000000000000 R08: ff3f6d41c3439e90 R09: ff3f6d41c474e02c
[    2.204773] R10: ff3f6d41c4749120 R11: fefefefefefefeff R12: 0000000000000000
[    2.204814] R13: 0000000000000010 R14: ff3f6d41c4749000 R15: ff3f6d41c36b4d00
[    2.204857] FS:  00007f446d919bc0(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[    2.204904] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.204937] CR2: 00007f446d98b0a0 CR3: 00000000036a1001 CR4: 0000000000771ef0
[    2.204985] PKRU: 55555554
[    2.205001] Call Trace:
[    2.205015]  <TASK>
[    2.205036]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.205065]  register_netdevice (net/core/dev.c:11488)
[    2.205088]  register_netdev (net/core/dev.c:11552)
[    2.205109]  loopback_net_init (drivers/net/loopback.c:218)
[    2.205130]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.205161]  ops_init (net/core/net_namespace.c:137)
[    2.205184]  setup_net (net/core/net_namespace.c:446)
[    2.205206]  copy_net_ns (net/core/net_namespace.c:579)
[    2.205234]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.205267]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.205295]  ksys_unshare (kernel/fork.c:3243)
[    2.205318]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.205337]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.205361]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.205390] RIP: 0033:0x7f446da13bcb
[    2.205417] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.205510] RSP: 002b:00007ffd2708ee38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    2.205548] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f446da13bcb
[    2.205589] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.205626] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    2.205668] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    2.205710] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000080
| [    2.205764] ---[ end trace 0000000000000000 ]---
| [    2.205853] ------------[ cut here ]------------
| [    2.205879] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/147
| [    2.205996] Tainted: [W]=WARN
[    2.206018] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.206058] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.206088] 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
[    2.206182] RSP: 0018:ff6fadbe003b7cb0 EFLAGS: 00010286
[    2.206210] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.206258] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4d00
[    2.206297] RBP: 0000000000000000 R08: ff3f6d41c3439f90 R09: ff3f6d41c479b030
[    2.206335] R10: ff3f6d41c474e120 R11: fefefefefefefeff R12: 0000000000000000
[    2.206373] R13: 0000000000000010 R14: ff3f6d41c474e000 R15: ff3f6d41c36b4d00
[    2.206415] FS:  00007f446d919bc0(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[    2.206459] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.206506] CR2: 00007f446d98b0a0 CR3: 00000000036a1001 CR4: 0000000000771ef0
[    2.206546] PKRU: 55555554
[    2.206562] Call Trace:
[    2.206575]  <TASK>
[    2.206589]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.206610]  register_netdevice (net/core/dev.c:11488)
[    2.206634]  register_netdev (net/core/dev.c:11552)
[    2.206655]  sit_init_net (net/ipv6/sit.c:1860)
[    2.206681]  ops_init (net/core/net_namespace.c:137)
[    2.206703]  setup_net (net/core/net_namespace.c:446)
[    2.206731]  copy_net_ns (net/core/net_namespace.c:579)
[    2.206757]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.206784]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.206817]  ksys_unshare (kernel/fork.c:3243)
[    2.206837]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.206862]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.206884]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.206914] RIP: 0033:0x7f446da13bcb
[    2.206935] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.207040] RSP: 002b:00007ffd2708ee38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    2.207082] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f446da13bcb
[    2.207129] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.207166] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    2.207205] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    2.207251] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000080
| [    2.207308] ---[ end trace 0000000000000000 ]---
| [    2.207530] ------------[ cut here ]------------
| [    2.207561] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/147
| [    2.207675] Tainted: [W]=WARN
[    2.207696] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.207734] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.207764] 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
[    2.207865] RSP: 0018:ff6fadbe003b7cc8 EFLAGS: 00010286
[    2.207900] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.207939] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4d00
[    2.207982] RBP: 0000000000000000 R08: ff3f6d41c37dea90 R09: ff3f6d41c47ba02c
[    2.208020] R10: ff3f6d41c479d120 R11: fefefefefefefeff R12: 0000000000000000
[    2.208059] R13: 0000000000000010 R14: ff3f6d41c479d000 R15: ff3f6d41c36b4d00
[    2.208101] FS:  00007f446d919bc0(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[    2.208140] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.208173] CR2: 00007f446d98b0a0 CR3: 00000000036a1001 CR4: 0000000000771ef0
[    2.208223] PKRU: 55555554
[    2.208238] Call Trace:
[    2.208250]  <TASK>
[    2.208262]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.208283]  register_netdevice (net/core/dev.c:11488)
[    2.208306]  register_netdev (net/core/dev.c:11552)
[    2.208327]  loopback_net_init (drivers/net/loopback.c:218)
[    2.208348]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.208375]  ops_init (net/core/net_namespace.c:137)
[    2.208398]  setup_net (net/core/net_namespace.c:446)
[    2.208421]  copy_net_ns (net/core/net_namespace.c:579)
[    2.208445]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.208472]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.208498]  ksys_unshare (kernel/fork.c:3243)
[    2.208521]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.208543]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.208564]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.208589] RIP: 0033:0x7f446da13bcb
[    2.208608] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.208709] RSP: 002b:00007ffd2708ee38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    2.208753] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f446da13bcb
[    2.208792] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.208830] RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
[    2.208869] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    2.208907] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000080
| [    2.208964] ---[ end trace 0000000000000000 ]---
| [    2.209057] ------------[ cut here ]------------
| [    2.209083] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/147
| [    2.209184] Tainted: [W]=WARN
[    2.209205] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.209242] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.209269] 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
[    2.209361] RSP: 0018:ff6fadbe003b7cb0 EFLAGS: 00010286
[    2.209388] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.209434] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4d00
[    2.209470] RBP: 0000000000000000 R08: ff3f6d41c37deb90 R09: ff3f6d41c47bf030
[    2.209509] R10: ff3f6d41c47ba120 R11: fefefefefefefeff R12: 0000000000000000
[    2.209554] R13: 0000000000000010 R14: ff3f6d41c47ba000 R15: ff3f6d41c36b4d00
[    2.209598] FS:  00007f446d919bc0(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[    2.209639] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.209671] CR2: 00007f446d98b0a0 CR3: 00000000036a1001 CR4: 0000000000771ef0
[    2.209710] PKRU: 55555554
[    2.209723] Call Trace:
[    2.209737]  <TASK>
[    2.209751]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.209775]  register_netdevice (net/core/dev.c:11488)
[    2.209797]  register_netdev (net/core/dev.c:11552)
[    2.209817]  sit_init_net (net/ipv6/sit.c:1860)
[    2.209836]  ops_init (net/core/net_namespace.c:137)
[    2.209858]  setup_net (net/core/net_namespace.c:446)
[    2.209882]  copy_net_ns (net/core/net_namespace.c:579)
[    2.209902]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.209928]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.209956]  ksys_unshare (kernel/fork.c:3243)
[    2.209975]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.209997]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.210018]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.210047] RIP: 0033:0x7f446da13bcb
[    2.210071] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.210176] RSP: 002b:00007ffd2708ee38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    2.210224] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f446da13bcb
[    2.210262] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.210308] RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
[    2.210345] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    2.210390] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000080
| [    2.210446] ---[ end trace 0000000000000000 ]---
| [    2.210560] ------------[ cut here ]------------
| [    2.210590] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/147
| [    2.210693] Tainted: [W]=WARN
[    2.210713] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.210749] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.210776] 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
[    2.210865] RSP: 0018:ff6fadbe003b77b0 EFLAGS: 00010286
[    2.210890] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.210930] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[    2.210970] RBP: 0000000000000000 R08: ff3f6d41c37dec90 R09: ff3f6d41c47ca034
[    2.211009] R10: ff3f6d41c47be120 R11: fefefefefefefeff R12: 0000000000000000
[    2.211057] R13: 0000000000000010 R14: ff3f6d41c47be000 R15: ff3f6d41c36b4c00
[    2.211100] FS:  00007f446d919bc0(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[    2.211142] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.211173] CR2: 00007f446d98b0a0 CR3: 00000000036a1001 CR4: 0000000000771ef0
[    2.211213] PKRU: 55555554
[    2.211233] Call Trace:
[    2.211245]  <TASK>
[    2.211256]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.211278]  __dev_notify_flags (net/core/dev.c:9787)
[    2.211299]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    2.211321]  veth_newlink (drivers/net/veth.c:1871)
[    2.211346]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    2.211367]  ? __d_alloc (fs/dcache.c:1807 (discriminator 11))
[    2.211393]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.211419]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.211445]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.211466]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.211488]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.211511]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.211536]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.211557]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.211585] RIP: 0033:0x7f446d98b08e
[    2.211606] 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
[    2.211698] RSP: 002b:00007ffd2708e530 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.211736] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f446d98b08e
[    2.211776] RDX: 0000000000000078 RSI: 00007ffd2708e5c0 RDI: 0000000000000008
[    2.211819] RBP: 00007ffd2708e540 R08: 0000000000000000 R09: 0000000000000000
[    2.211859] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
[    2.211899] R13: 0000000000000045 R14: 0000000000411f2f R15: 0000000000000080
| [    2.211955] ---[ end trace 0000000000000000 ]---
| [    2.212083] ------------[ cut here ]------------
| [    2.212111] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bench-lookups_i/147
| [    2.212228] Tainted: [W]=WARN
[    2.212248] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.212281] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.212305] 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
[    2.212403] RSP: 0018:ff6fadbe003b7a30 EFLAGS: 00010286
[    2.212429] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.212475] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[    2.212523] RBP: 0000000000000000 R08: ff3f6d41c37dec10 R09: ff3f6d41c47cf034
[    2.212562] R10: ff3f6d41c47bf120 R11: fefefefefefefeff R12: 0000000000000000
[    2.212600] R13: 0000000000000010 R14: ff3f6d41c47bf000 R15: ff3f6d41c36b4c00
[    2.212647] FS:  00007f446d919bc0(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[    2.212689] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.212721] CR2: 00007f446d98b0a0 CR3: 00000000036a1001 CR4: 0000000000771ef0
[    2.212760] PKRU: 55555554
[    2.212773] Call Trace:
[    2.212785]  <TASK>
[    2.212799]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.212820]  __dev_notify_flags (net/core/dev.c:9787)
[    2.212846]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    2.212875]  rtnl_newlink (net/core/rtnetlink.c:3914 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    2.212897]  ? __d_alloc (fs/dcache.c:1807 (discriminator 11))
[    2.212918]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.212949]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.212972]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.212993]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.213016]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.213041]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.213067]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.213091]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.213120] RIP: 0033:0x7f446d98b08e
[    2.213141] 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
[    2.213231] RSP: 002b:00007ffd2708e530 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.213270] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f446d98b08e
[    2.213308] RDX: 0000000000000078 RSI: 00007ffd2708e5c0 RDI: 0000000000000008
[    2.213357] RBP: 00007ffd2708e540 R08: 0000000000000000 R09: 0000000000000000
[    2.213399] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
[    2.213439] R13: 0000000000000045 R14: 0000000000411f2f R15: 0000000000000080
| [    2.213493] ---[ end trace 0000000000000000 ]---
| [    2.213648] ------------[ cut here ]------------
| [    2.213677] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/63
| [    2.213796] Tainted: [W]=WARN
[    2.213817] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.213848] Workqueue: netns cleanup_net
[    2.213874] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.213904] 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
[    2.213992] RSP: 0018:ff6fadbe0022fce8 EFLAGS: 00010286
[    2.214028] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.214067] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[    2.214104] RBP: 0000000000000000 R08: ff3f6d41c3439f90 R09: ff3f6d41c4753830
[    2.214152] R10: ff3f6d41c474e120 R11: fefefefefefefeff R12: 0000000000000000
[    2.214192] R13: 0000000000000011 R14: ff3f6d41c474e000 R15: ff3f6d41c36b4c00
[    2.214238] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[    2.214280] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.214313] CR2: 00007f446d98b0a0 CR3: 00000000036a1001 CR4: 0000000000771ef0
[    2.214356] PKRU: 55555554
[    2.214377] Call Trace:
[    2.214390]  <TASK>
[    2.214403]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.214434]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    2.214457]  cleanup_net (net/core/net_namespace.c:702)
[    2.214479]  process_one_work (kernel/workqueue.c:3314)
[    2.214501]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.214527]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.214548]  kthread (kernel/kthread.c:436)
[    2.214572]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.214593]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.214620]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.214641]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.214679] ---[ end trace 0000000000000000 ]---
| [    2.215644] ------------[ cut here ]------------
| [    2.215679] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: bench-lookups_i/147
| [    2.215797] Tainted: [W]=WARN
[    2.215819] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.215854] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.215883] 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
[    2.215977] RSP: 0018:ff6fadbe003b7cc8 EFLAGS: 00010286
[    2.216007] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.216053] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b5700
[    2.216093] RBP: 0000000000000000 R08: ff3f6d41c37dee10 R09: ff3f6d41c5c0e02c
[    2.216133] R10: ff3f6d41c5c09120 R11: fefefefefefefeff R12: 0000000000000000
[    2.216173] R13: 0000000000000010 R14: ff3f6d41c5c09000 R15: ff3f6d41c36b5700
[    2.216216] FS:  00007f446d919bc0(0000) GS:ff3f6d426ce49000(0000) knlGS:0000000000000000
[    2.216264] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.216299] CR2: 000055902afc70d8 CR3: 00000000036a1002 CR4: 0000000000771ef0
[    2.216341] PKRU: 55555554
[    2.216357] Call Trace:
[    2.216372]  <TASK>
[    2.216388]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.216412]  register_netdevice (net/core/dev.c:11488)
[    2.216434]  register_netdev (net/core/dev.c:11552)
[    2.216455]  loopback_net_init (drivers/net/loopback.c:218)
[    2.216475]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.216505]  ops_init (net/core/net_namespace.c:137)
[    2.216525]  setup_net (net/core/net_namespace.c:446)
[    2.216547]  copy_net_ns (net/core/net_namespace.c:579)
[    2.216566]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.216596]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.216623]  ksys_unshare (kernel/fork.c:3243)
[    2.216645]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.216667]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.216687]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.216713] RIP: 0033:0x7f446da13bcb
[    2.216738] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.216830] RSP: 002b:00007ffd2708ee98 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    2.216870] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f446da13bcb
[    2.216914] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.216961] RBP: 000000006a10e794 R08: 0000000000000000 R09: 0000000000000000
[    2.217002] R10: 0000000000000000 R11: 0000000000000206 R12: 00005402b80d0120
[    2.217043] R13: 0100000000000000 R14: 000000000000001f R15: 0000000000000080
| [    2.217099] ---[ end trace 0000000000000000 ]---
| [    2.217732] ------------[ cut here ]------------
| [    2.217765] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: bench-lookups_i/147
| [    2.217875] Tainted: [W]=WARN
[    2.217897] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.217930] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.217959] 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
[    2.218050] RSP: 0018:ff6fadbe003b7cb0 EFLAGS: 00010286
[    2.218079] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.218121] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b5700
[    2.218166] RBP: 0000000000000000 R08: ff3f6d41c37def10 R09: ff3f6d41c5c13030
[    2.218208] R10: ff3f6d41c5c0e120 R11: fefefefefefefeff R12: 0000000000000000
[    2.218260] R13: 0000000000000010 R14: ff3f6d41c5c0e000 R15: ff3f6d41c36b5700
[    2.218304] FS:  00007f446d919bc0(0000) GS:ff3f6d426ce49000(0000) knlGS:0000000000000000
[    2.218344] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.218377] CR2: 000055902afd0078 CR3: 00000000036a1002 CR4: 0000000000771ef0
[    2.218418] PKRU: 55555554
[    2.218433] Call Trace:
[    2.218449]  <TASK>
[    2.218463]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.218485]  register_netdevice (net/core/dev.c:11488)
[    2.218504]  register_netdev (net/core/dev.c:11552)
[    2.218528]  sit_init_net (net/ipv6/sit.c:1860)
[    2.218549]  ops_init (net/core/net_namespace.c:137)
[    2.218572]  setup_net (net/core/net_namespace.c:446)
[    2.218593]  copy_net_ns (net/core/net_namespace.c:579)
[    2.218615]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.218643]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.218671]  ksys_unshare (kernel/fork.c:3243)
[    2.218692]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.218714]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.218739]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.218771] RIP: 0033:0x7f446da13bcb
[    2.218793] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.218889] RSP: 002b:00007ffd2708ee98 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    2.218931] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f446da13bcb
[    2.218972] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.219011] RBP: 000000006a10e794 R08: 0000000000000000 R09: 0000000000000000
[    2.219061] R10: 0000000000000000 R11: 0000000000000206 R12: 00005402b80d0120
[    2.219106] R13: 0100000000000000 R14: 000000000000001f R15: 0000000000000080
| [    2.219160] ---[ end trace 0000000000000000 ]---
| [    2.219424] ------------[ cut here ]------------
| [    2.219454] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: bench-lookups_i/147
| [    2.219559] Tainted: [W]=WARN
[    2.219581] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.219615] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.219640] 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
[    2.219731] RSP: 0018:ff6fadbe003b7cc8 EFLAGS: 00010286
[    2.219762] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.219799] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b5700
[    2.219845] RBP: 0000000000000000 R08: ff3f6d41c1228850 R09: ff3f6d41c5c3202c
[    2.219884] R10: ff3f6d41c5c15120 R11: fefefefefefefeff R12: 0000000000000000
[    2.219920] R13: 0000000000000010 R14: ff3f6d41c5c15000 R15: ff3f6d41c36b5700
[    2.219962] FS:  00007f446d919bc0(0000) GS:ff3f6d426ce49000(0000) knlGS:0000000000000000
[    2.220004] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.220041] CR2: 000055902afd0078 CR3: 00000000036a1002 CR4: 0000000000771ef0
[    2.220079] PKRU: 55555554
[    2.220099] Call Trace:
[    2.220112]  <TASK>
[    2.220128]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.220153]  register_netdevice (net/core/dev.c:11488)
[    2.220176]  register_netdev (net/core/dev.c:11552)
[    2.220197]  loopback_net_init (drivers/net/loopback.c:218)
[    2.220223]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.220251]  ops_init (net/core/net_namespace.c:137)
[    2.220274]  setup_net (net/core/net_namespace.c:446)
[    2.220295]  copy_net_ns (net/core/net_namespace.c:579)
[    2.220317]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.220348]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.220378]  ksys_unshare (kernel/fork.c:3243)
[    2.220401]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.220425]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.220449]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.220476] RIP: 0033:0x7f446da13bcb
[    2.220497] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.220595] RSP: 002b:00007ffd2708ee98 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    2.220641] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f446da13bcb
[    2.220680] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.220717] RBP: 000000006a10e794 R08: 0000000000000000 R09: 0000000000000000
[    2.220760] R10: 0000000000000000 R11: 0000000000000206 R12: 00005402b80d0120
[    2.220804] R13: 0100000000000000 R14: 000000000000001f R15: 0000000000000080
| [    2.220855] ---[ end trace 0000000000000000 ]---
| [    2.220918] ------------[ cut here ]------------
| [    2.220945] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: bench-lookups_i/147
| [    2.221054] Tainted: [W]=WARN
[    2.221075] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.221106] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.221135] 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
[    2.221231] RSP: 0018:ff6fadbe003b7cb0 EFLAGS: 00010286
[    2.221258] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.221297] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b5700
[    2.221334] RBP: 0000000000000000 R08: ff3f6d41c1228890 R09: ff3f6d41c5c37030
[    2.221376] R10: ff3f6d41c5c32120 R11: fefefefefefefeff R12: 0000000000000000
[    2.221416] R13: 0000000000000010 R14: ff3f6d41c5c32000 R15: ff3f6d41c36b5700
[    2.221455] FS:  00007f446d919bc0(0000) GS:ff3f6d426ce49000(0000) knlGS:0000000000000000
[    2.221495] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.221529] CR2: 000055902afd0078 CR3: 00000000036a1002 CR4: 0000000000771ef0
[    2.221569] PKRU: 55555554
[    2.221582] Call Trace:
[    2.221595]  <TASK>
[    2.221608]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.221627]  register_netdevice (net/core/dev.c:11488)
[    2.221648]  register_netdev (net/core/dev.c:11552)
[    2.221671]  sit_init_net (net/ipv6/sit.c:1860)
[    2.221691]  ops_init (net/core/net_namespace.c:137)
[    2.221713]  setup_net (net/core/net_namespace.c:446)
[    2.221733]  copy_net_ns (net/core/net_namespace.c:579)
[    2.221752]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.221785]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.221816]  ksys_unshare (kernel/fork.c:3243)
[    2.221837]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.221858]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.221881]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.221908] RIP: 0033:0x7f446da13bcb
[    2.221932] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.222023] RSP: 002b:00007ffd2708ee98 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    2.222069] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f446da13bcb
[    2.222107] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    2.222145] RBP: 000000006a10e794 R08: 0000000000000000 R09: 0000000000000000
[    2.222183] R10: 0000000000000000 R11: 0000000000000206 R12: 00005402b80d0120
[    2.222226] R13: 0100000000000000 R14: 000000000000001f R15: 0000000000000080
| [    2.222275] ---[ end trace 0000000000000000 ]---
| [    2.225071] ------------[ cut here ]------------
| [    2.225109] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/63
| [    2.225228] Tainted: [W]=WARN
[    2.225248] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.225281] Workqueue: netns cleanup_net
[    2.225306] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.225335] 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
[    2.225428] RSP: 0018:ff6fadbe0022fc78 EFLAGS: 00010286
[    2.225454] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.225493] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[    2.225534] RBP: 0000000000000000 R08: ff3f6d41c37dec10 R09: ff3f6d41c47d2834
[    2.225586] R10: ff3f6d41c47bf120 R11: fefefefefefefeff R12: 0000000000000000
[    2.225626] R13: 0000000000000011 R14: ff3f6d41c47bf000 R15: ff3f6d41c36b4c00
[    2.225666] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[    2.225710] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.225742] CR2: 00007f446d98b0a0 CR3: 00000000036a1001 CR4: 0000000000771ef0
[    2.225781] PKRU: 55555554
[    2.225794] Call Trace:
[    2.225807]  <TASK>
[    2.225830]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.225855]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    2.225887]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    2.225909]  cleanup_net (net/core/net_namespace.c:702)
[    2.225933]  process_one_work (kernel/workqueue.c:3314)
[    2.225953]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.225973]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.225997]  kthread (kernel/kthread.c:436)
[    2.226019]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.226043]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.226064]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.226094]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.226131] ---[ end trace 0000000000000000 ]---
| [    2.226195] ------------[ cut here ]------------
| [    2.226227] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/63
| [    2.226331] Tainted: [W]=WARN
[    2.226349] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.226384] Workqueue: netns cleanup_net
[    2.226405] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.226436] 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
[    2.226528] RSP: 0018:ff6fadbe0022fc78 EFLAGS: 00010286
[    2.226559] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.226596] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[    2.226635] RBP: 0000000000000000 R08: ff3f6d41c37dec90 R09: ff3f6d41c47c1034
[    2.226673] R10: ff3f6d41c47be120 R11: fefefefefefefeff R12: 0000000000000000
[    2.226709] R13: 0000000000000011 R14: ff3f6d41c47be000 R15: ff3f6d41c36b4c00
[    2.226749] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[    2.226789] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.226820] CR2: 00007f446d98b0a0 CR3: 00000000036a1001 CR4: 0000000000771ef0
[    2.226860] PKRU: 55555554
[    2.226872] Call Trace:
[    2.226890]  <TASK>
[    2.226907]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.226931]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    2.226953]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    2.226972]  cleanup_net (net/core/net_namespace.c:702)
[    2.226990]  process_one_work (kernel/workqueue.c:3314)
[    2.227015]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.227037]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.227057]  kthread (kernel/kthread.c:436)
[    2.227082]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.227101]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.227121]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.227144]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.227179] ---[ end trace 0000000000000000 ]---
| [    2.227253] ------------[ cut here ]------------
| [    2.227285] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/63
| [    2.227388] Tainted: [W]=WARN
[    2.227405] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.227439] Workqueue: netns cleanup_net
[    2.227461] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.227487] 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
[    2.227580] RSP: 0018:ff6fadbe0022fc78 EFLAGS: 00010286
[    2.227607] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.227649] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[    2.227690] RBP: 0000000000000000 R08: ff3f6d41c3439e90 R09: ff3f6d41c2d4a02c
[    2.227727] R10: ff3f6d41c4749120 R11: fefefefefefefeff R12: 0000000000000000
[    2.227764] R13: 0000000000000011 R14: ff3f6d41c4749000 R15: ff3f6d41c36b4c00
[    2.227805] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[    2.227845] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.227876] CR2: 00007f446d98b0a0 CR3: 00000000036a1001 CR4: 0000000000771ef0
[    2.227915] PKRU: 55555554
[    2.227929] Call Trace:
[    2.227941]  <TASK>
[    2.227958]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.227991]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    2.228021]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    2.228044]  cleanup_net (net/core/net_namespace.c:702)
[    2.228063]  process_one_work (kernel/workqueue.c:3314)
[    2.228083]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.228107]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.228127]  kthread (kernel/kthread.c:436)
[    2.228147]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.228165]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.228184]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.228205]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.228235] ---[ end trace 0000000000000000 ]---
| [    2.239544] ------------[ cut here ]------------
| [    2.239618] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: bench-lookups_i/147
| [    2.239744] Tainted: [W]=WARN
[    2.239765] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.239800] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.239830] 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
[    2.239928] RSP: 0018:ff6fadbe003b77b0 EFLAGS: 00010286
[    2.239955] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.239999] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b5600
[    2.240044] RBP: 0000000000000000 R08: ff3f6d41c614bd10 R09: ff3f6d41c474e034
[    2.240085] R10: ff3f6d41c5c36120 R11: fefefefefefefeff R12: 0000000000000000
[    2.240119] R13: 0000000000000010 R14: ff3f6d41c5c36000 R15: ff3f6d41c36b5600
[    2.240160] FS:  00007f446d919bc0(0000) GS:ff3f6d426ce49000(0000) knlGS:0000000000000000
[    2.240204] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.240241] CR2: 0000000006f98218 CR3: 00000000036a1002 CR4: 0000000000771ef0
[    2.240285] PKRU: 55555554
[    2.240300] Call Trace:
[    2.240314]  <TASK>
[    2.240329]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.240351]  __dev_notify_flags (net/core/dev.c:9787)
[    2.240375]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    2.240398]  veth_newlink (drivers/net/veth.c:1871)
[    2.240422]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    2.240444]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.240475]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.240496]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.240520]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.240542]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.240563]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.240584]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.240607]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.240638] RIP: 0033:0x7f446d996e32
[    2.240657] 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)
[    2.240753] RSP: 002b:00007ffd2708e578 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    2.240792] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f446d996e32
[    2.240834] RDX: 0000000000000078 RSI: 00007ffd2708e620 RDI: 0000000000000009
[    2.240873] RBP: 00007ffd2708e5a0 R08: 0000000000000000 R09: 0000000000000000
[    2.240918] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000009
[    2.240959] R13: 0000000000000045 R14: 00000000004120d0 R15: 0000000000000080
| [    2.241028] ---[ end trace 0000000000000000 ]---
| [    2.241153] ------------[ cut here ]------------
| [    2.241206] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: bench-lookups_i/147
| [    2.241326] Tainted: [W]=WARN
[    2.241347] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.241382] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.241408] 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
[    2.241494] RSP: 0018:ff6fadbe003b7a30 EFLAGS: 00010286
[    2.241529] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.241571] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b5600
[    2.241613] RBP: 0000000000000000 R08: ff3f6d41c614bc90 R09: ff3f6d41c5c53034
[    2.241654] R10: ff3f6d41c5c37120 R11: fefefefefefefeff R12: 0000000000000000
[    2.241694] R13: 0000000000000010 R14: ff3f6d41c5c37000 R15: ff3f6d41c36b5600
[    2.241737] FS:  00007f446d919bc0(0000) GS:ff3f6d426ce49000(0000) knlGS:0000000000000000
[    2.241779] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.241815] CR2: 0000000006f98218 CR3: 00000000036a1002 CR4: 0000000000771ef0
[    2.241854] PKRU: 55555554
[    2.241870] Call Trace:
[    2.241884]  <TASK>
[    2.241899]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.241919]  __dev_notify_flags (net/core/dev.c:9787)
[    2.241942]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    2.241963]  rtnl_newlink (net/core/rtnetlink.c:3914 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    2.241985]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.242012]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.242043]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.242066]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.242088]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.242108]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.242128]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.242150]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.242180] RIP: 0033:0x7f446d996e32
[    2.242202] 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)
[    2.242290] RSP: 002b:00007ffd2708e578 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    2.242330] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f446d996e32
[    2.242377] RDX: 0000000000000078 RSI: 00007ffd2708e620 RDI: 0000000000000009
[    2.242421] RBP: 00007ffd2708e5a0 R08: 0000000000000000 R09: 0000000000000000
[    2.242465] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000009
[    2.242506] R13: 0000000000000045 R14: 00000000004120d0 R15: 0000000000000080
| [    2.242561] ---[ end trace 0000000000000000 ]---
| [    2.242614] ------------[ cut here ]------------
| [    2.242642] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: bench-lookups_i/147
| [    2.242743] Tainted: [W]=WARN
[    2.242761] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.242792] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.242819] 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
[    2.242905] RSP: 0018:ff6fadbe003b78e0 EFLAGS: 00010286
[    2.242934] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.242975] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b5700
[    2.243012] RBP: 0000000000000000 R08: ff3f6d41c614bd10 R09: ff3f6d41c5c53034
[    2.243054] R10: ff3f6d41c5c36120 R11: fefefefefefefeff R12: 0000000000000000
[    2.243094] R13: 0000000000000010 R14: ff3f6d41c5c36000 R15: ff3f6d41c36b5700
[    2.243137] FS:  00007f446d919bc0(0000) GS:ff3f6d426ce49000(0000) knlGS:0000000000000000
[    2.243178] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.243209] CR2: 0000000006f98218 CR3: 00000000036a1002 CR4: 0000000000771ef0
[    2.243251] PKRU: 55555554
[    2.243266] Call Trace:
[    2.243281]  <TASK>
[    2.243294]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.243314]  __dev_notify_flags (net/core/dev.c:9787)
[    2.243337]  netif_change_flags (net/core/dev.c:9820)
[    2.243358]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    2.243380]  ? netlink_set_err (net/netlink/af_netlink.c:1624 (discriminator 3))
[    2.243399]  ? rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:971 net/core/rtnetlink.c:4529)
[    2.243428]  ? __nla_validate_parse (lib/nlattr.c:620)
[    2.243460]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    2.243486]  ? netdev_run_todo (net/core/dev.c:11703)
[    2.243508]  ? __dev_notify_flags (net/core/dev.c:9787)
[    2.243533]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    2.243554]  ? kmalloc_reserve (net/core/skbuff.c:613 (discriminator 7))
[    2.243577]  ? __alloc_skb (net/core/skbuff.c:702 (discriminator 7))
[    2.243600]  ? netlink_attachskb (net/netlink/af_netlink.c:1222)
[    2.243634]  ? file_ns_capable (./include/linux/security.h:701 kernel/capability.c:440)
[    2.243657]  ? 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))
[    2.243686]  ? ns_capable (./include/linux/security.h:701 kernel/capability.c:342 kernel/capability.c:363)
[    2.243706]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:871 net/core/rtnetlink.c:7059)
[    2.243733]  ? netlink_unicast (net/netlink/af_netlink.c:1270 net/netlink/af_netlink.c:1360)
[    2.243755]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.243783]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.243806]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.243826]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.243846]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.243871]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.243894]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.243916]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.243941] RIP: 0033:0x7f446d996e32
[    2.243959] 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)
[    2.244056] RSP: 002b:00007ffd2708e588 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    2.244098] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f446d996e32
[    2.244140] RDX: 0000000000000020 RSI: 00007ffd2708e600 RDI: 0000000000000009
[    2.244177] RBP: 00007ffd2708e5b0 R08: 0000000000000000 R09: 0000000000000000
[    2.244216] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000326db4a5
[    2.244260] R13: 0100000000000000 R14: 00005402b80d0120 R15: 0100000000000000
| [    2.244314] ---[ end trace 0000000000000000 ]---
| [    2.244394] ------------[ cut here ]------------
| [    2.244422] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: bench-lookups_i/147
| [    2.244536] Tainted: [W]=WARN
[    2.244559] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.244594] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.244626] 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
[    2.244717] RSP: 0018:ff6fadbe003b78e0 EFLAGS: 00010286
[    2.244744] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.244785] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b5600
[    2.244825] RBP: 0000000000000000 R08: ff3f6d41c614bc90 R09: ff3f6d41c5c53034
[    2.244868] R10: ff3f6d41c5c37120 R11: fefefefefefefeff R12: 0000000000000000
[    2.244906] R13: 0000000000000010 R14: ff3f6d41c5c37000 R15: ff3f6d41c36b5600
[    2.244948] FS:  00007f446d919bc0(0000) GS:ff3f6d426ce49000(0000) knlGS:0000000000000000
[    2.244990] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.245029] CR2: 00007f446d115cd4 CR3: 00000000036a1002 CR4: 0000000000771ef0
[    2.245070] PKRU: 55555554
[    2.245082] Call Trace:
[    2.245095]  <TASK>
[    2.245108]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.245128]  __dev_notify_flags (net/core/dev.c:9787)
[    2.245150]  netif_change_flags (net/core/dev.c:9820)
[    2.245169]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    2.245194]  ? alloc_pages_mpol (mm/mempolicy.c:2490)
[    2.245223]  ? __pte_offset_map (./include/linux/rcupdate.h:836 mm/pgtable-generic.c:290)
[    2.245246]  ? walk_pte_range_inner (mm/pagewalk.c:39)
[    2.245273]  ? __nla_validate_parse (lib/nlattr.c:620)
[    2.245303]  ? walk_pgd_range (./include/linux/rcupdate.h:871 ./include/linux/pgtable.h:117 mm/pagewalk.c:88 mm/pagewalk.c:173 mm/pagewalk.c:239 mm/pagewalk.c:280 mm/pagewalk.c:321)
[    2.245325]  ? guard_install_pmd_entry (mm/madvise.c:1085)
[    2.245355]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    2.245376]  ? idr_replace (lib/idr.c:304)
[    2.245400]  ? cpu_util.constprop.0 (kernel/sched/fair.c:8322 (discriminator 1))
[    2.245430]  ? sched_balance_find_dst_group (kernel/sched/fair.c:8354 kernel/sched/fair.c:11037 kernel/sched/fair.c:11167)
[    2.245458]  ? file_ns_capable (./include/linux/security.h:701 kernel/capability.c:440)
[    2.245484]  ? 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))
[    2.245510]  ? ns_capable (./include/linux/security.h:701 kernel/capability.c:342 kernel/capability.c:363)
[    2.245531]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:871 net/core/rtnetlink.c:7059)
[    2.245562]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.245590]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.245612]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.245633]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.245654]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.245677]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.245699]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.245721]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.245750] RIP: 0033:0x7f446d996e32
[    2.245773] 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)
[    2.245866] RSP: 002b:00007ffd2708e588 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    2.245906] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f446d996e32
[    2.245948] RDX: 0000000000000020 RSI: 00007ffd2708e600 RDI: 0000000000000009
[    2.245989] RBP: 00007ffd2708e5b0 R08: 0000000000000000 R09: 0000000000000000
[    2.246038] R10: 0000000000000000 R11: 0000000000000246 R12: 000000007dee4e34
[    2.246079] R13: 0100000000000000 R14: 00000100b80d0120 R15: 0100000000000000
| [    2.246138] ---[ end trace 0000000000000000 ]---
| [    2.246201] ------------[ cut here ]------------
| [    2.246233] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 0/36
| [    2.246340] Tainted: [W]=WARN
[    2.246362] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.246395] Workqueue: events_unbound linkwatch_event
[    2.246425] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.246453] 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
[    2.246542] RSP: 0018:ff6fadbe0014bd50 EFLAGS: 00010286
[    2.246571] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[    2.246610] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[    2.246649] RBP: 0000000000000000 R08: ff3f6d41c614bd10 R09: ff3f6d41c1fab034
[    2.246690] R10: ff3f6d41c5c36120 R11: fefefefefefefeff R12: 0000000000000000
[    2.246731] R13: 0000000000000010 R14: ff3f6d41c5c36000 R15: ff3f6d41c36b4c00
[    2.246772] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[    2.246813] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.246847] CR2: 00007f4468001908 CR3: 00000000036a1001 CR4: 0000000000771ef0
[    2.246887] PKRU: 55555554
[    2.246902] Call Trace:
[    2.246914]  <TASK>
[    2.246932]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.246956]  netif_state_change (net/core/dev.c:1605)
[    2.246984]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    2.247005]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    2.247037]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    2.247061]  process_one_work (kernel/workqueue.c:3314)
[    2.247082]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.247103]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.247124]  kthread (kernel/kthread.c:436)
[    2.247145]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.247166]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.247189]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.247211]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.247257] ---[ end trace 0000000000000000 ]---
| [    2.255101] ------------[ cut here ]------------
| [    2.255152] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/63
| [    2.255267] Tainted: [W]=WARN
[    2.255287] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.255320] Workqueue: netns cleanup_net
[    2.255344] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.255372] 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
[    2.255464] RSP: 0018:ff6fadbe0022fce8 EFLAGS: 00010286
[    2.255489] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.255528] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[    2.255568] RBP: 0000000000000000 R08: ff3f6d41c37deb90 R09: ff3f6d41c47c5830
[    2.255611] R10: ff3f6d41c47ba120 R11: fefefefefefefeff R12: 0000000000000000
[    2.255654] R13: 0000000000000011 R14: ff3f6d41c47ba000 R15: ff3f6d41c36b4c00
[    2.255699] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[    2.255741] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.255776] CR2: 00007f4468001908 CR3: 00000000036a1001 CR4: 0000000000771ef0
[    2.255819] PKRU: 55555554
[    2.255835] Call Trace:
[    2.255848]  <TASK>
[    2.255865]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.255896]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    2.255918]  cleanup_net (net/core/net_namespace.c:702)
[    2.255940]  process_one_work (kernel/workqueue.c:3314)
[    2.255961]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.255982]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.256001]  kthread (kernel/kthread.c:436)
[    2.256022]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.256048]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.256070]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.256091]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.256127] ---[ end trace 0000000000000000 ]---
| [    2.262051] ------------[ cut here ]------------
| [    2.262100] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/63
| [    2.262212] Tainted: [W]=WARN
[    2.262238] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.262272] Workqueue: netns cleanup_net
[    2.262297] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.262324] 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
[    2.262418] RSP: 0018:ff6fadbe0022fc78 EFLAGS: 00010286
[    2.262444] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.262488] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[    2.262530] RBP: 0000000000000000 R08: ff3f6d41c37dea90 R09: ff3f6d41c47ac02c
[    2.262569] R10: ff3f6d41c479d120 R11: fefefefefefefeff R12: 0000000000000000
[    2.262608] R13: 0000000000000011 R14: ff3f6d41c479d000 R15: ff3f6d41c36b4c00
[    2.262652] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[    2.262694] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.262730] CR2: 00007f4468001908 CR3: 00000000036a1001 CR4: 0000000000771ef0
[    2.262775] PKRU: 55555554
[    2.262790] Call Trace:
[    2.262803]  <TASK>
[    2.262819]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.262846]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    2.262871]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    2.262892]  cleanup_net (net/core/net_namespace.c:702)
[    2.262919]  process_one_work (kernel/workqueue.c:3314)
[    2.262941]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.262962]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.262984]  kthread (kernel/kthread.c:436)
[    2.263006]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.263029]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.263052]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.263071]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.263110] ---[ end trace 0000000000000000 ]---
| [    3.216085] ------------[ cut here ]------------
| [    3.216161] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 0/39
| [    3.216285] Tainted: [W]=WARN
[    3.216305] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.216338] Workqueue: events_unbound linkwatch_event
[    3.216367] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.216396] 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
[    3.216484] RSP: 0018:ff6fadbe00163d50 EFLAGS: 00010286
[    3.216511] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[    3.216552] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[    3.216598] RBP: 0000000000000000 R08: ff3f6d41c614bc90 R09: ff3f6d41c479b034
[    3.216641] R10: ff3f6d41c5c37120 R11: fefefefefefefeff R12: 0000000000000000
[    3.216681] R13: 0000000000000010 R14: ff3f6d41c5c37000 R15: ff3f6d41c36b4c00
[    3.216725] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[    3.216771] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.216808] CR2: 00007f4468001908 CR3: 00000000036a1001 CR4: 0000000000771ef0
[    3.216848] PKRU: 55555554
[    3.216863] Call Trace:
[    3.216877]  <TASK>
[    3.216891]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.216912]  netif_state_change (net/core/dev.c:1605)
[    3.216934]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    3.216955]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    3.216981]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    3.217003]  process_one_work (kernel/workqueue.c:3314)
[    3.217028]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    3.217053]  ? rescuer_thread (kernel/workqueue.c:3672)
[    3.217080]  kthread (kernel/kthread.c:436)
[    3.217105]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    3.217124]  ret_from_fork (arch/x86/kernel/process.c:158)
[    3.217143]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    3.217166]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    3.217205] ---[ end trace 0000000000000000 ]---
| [   10.057157] ------------[ cut here ]------------
| [   10.057214] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/63
| [   10.057372] Tainted: [W]=WARN
[   10.057390] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.057419] Workqueue: netns cleanup_net
[   10.057444] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.057475] 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
[   10.057574] RSP: 0018:ff6fadbe0022fce8 EFLAGS: 00010286
[   10.057645] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   10.057697] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[   10.057738] RBP: 0000000000000000 R08: ff3f6d41c37def10 R09: ff3f6d41c443b030
[   10.057778] R10: ff3f6d41c5c0e120 R11: fefefefefefefeff R12: 0000000000000000
[   10.057815] R13: 0000000000000011 R14: ff3f6d41c5c0e000 R15: ff3f6d41c36b4c00
[   10.057860] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[   10.057907] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.057944] CR2: 00007f6292b8ff98 CR3: 0000000036043004 CR4: 0000000000771ef0
[   10.057985] PKRU: 55555554
[   10.057999] Call Trace:
[   10.058013]  <TASK>
[   10.058030]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.058060]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   10.058081]  cleanup_net (net/core/net_namespace.c:702)
[   10.058107]  process_one_work (kernel/workqueue.c:3314)
[   10.058135]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.058155]  ? rescuer_thread (kernel/workqueue.c:3672)
[   10.058176]  kthread (kernel/kthread.c:436)
[   10.058198]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.058218]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.058239]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.058267]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   10.058307] ---[ end trace 0000000000000000 ]---
| [   10.058441] ------------[ cut here ]------------
| [   10.058469] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/63
| [   10.058587] Tainted: [W]=WARN
[   10.058608] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.058648] Workqueue: netns cleanup_net
[   10.058670] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.058703] 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
[   10.058799] RSP: 0018:ff6fadbe0022fce8 EFLAGS: 00010286
[   10.058829] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   10.058868] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[   10.058914] RBP: 0000000000000000 R08: ff3f6d41c1228890 R09: ff3f6d41c5c27030
[   10.058960] R10: ff3f6d41c5c32120 R11: fefefefefefefeff R12: 0000000000000000
[   10.059005] R13: 0000000000000011 R14: ff3f6d41c5c32000 R15: ff3f6d41c36b4c00
[   10.059054] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[   10.059086] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.059121] CR2: 00007f6292b8ff98 CR3: 0000000036043004 CR4: 0000000000771ef0
[   10.059176] PKRU: 55555554
[   10.059199] Call Trace:
[   10.059228]  <TASK>
[   10.059261]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.059321]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   10.059358]  cleanup_net (net/core/net_namespace.c:702)
[   10.059402]  process_one_work (kernel/workqueue.c:3314)
[   10.059444]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.059462]  ? rescuer_thread (kernel/workqueue.c:3672)
[   10.059481]  kthread (kernel/kthread.c:436)
[   10.059498]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.059515]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.059548]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.059585]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   10.059657] ---[ end trace 0000000000000000 ]---
| [   10.068063] ------------[ cut here ]------------
| [   10.068096] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/63
| [   10.068200] Tainted: [W]=WARN
[   10.068221] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.068258] Workqueue: netns cleanup_net
[   10.068284] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.068313] 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
[   10.068411] RSP: 0018:ff6fadbe0022fc08 EFLAGS: 00010286
[   10.068439] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[   10.068491] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[   10.068529] RBP: 0000000000000000 R08: ff3f6d41c614bc90 R09: ff3f6d41c5c32034
[   10.068568] R10: ff3f6d41c5c37120 R11: fefefefefefefeff R12: 0000000000000000
[   10.068611] R13: 0000000000000010 R14: ff3f6d41c5c37000 R15: ff3f6d41c36b4c00
[   10.068660] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[   10.068705] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.068735] CR2: 00007f6292b8ff98 CR3: 0000000036043004 CR4: 0000000000771ef0
[   10.068777] PKRU: 55555554
[   10.068789] Call Trace:
[   10.068800]  <TASK>
[   10.068815]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   10.068839]  netif_close_many (net/core/dev.c:1804)
[   10.068859]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   10.068885]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   10.068912]  ? xas_load (lib/xarray.c:239)
[   10.068933]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   10.068960]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   10.068984]  cleanup_net (net/core/net_namespace.c:702)
[   10.069003]  process_one_work (kernel/workqueue.c:3314)
[   10.069028]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.069051]  ? rescuer_thread (kernel/workqueue.c:3672)
[   10.069071]  kthread (kernel/kthread.c:436)
[   10.069093]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.069112]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.069136]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.069158]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   10.069193] ---[ end trace 0000000000000000 ]---
| [   10.072708] ------------[ cut here ]------------
| [   10.072762] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/63
| [   10.072869] Tainted: [W]=WARN
[   10.072889] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.072925] Workqueue: netns cleanup_net
[   10.072950] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.072985] 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
[   10.073082] RSP: 0018:ff6fadbe0022fc08 EFLAGS: 00010286
[   10.073112] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[   10.073154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[   10.073192] RBP: 0000000000000000 R08: ff3f6d41c614bd10 R09: ff3f6d41c5c32034
[   10.073230] R10: ff3f6d41c5c36120 R11: fefefefefefefeff R12: 0000000000000000
[   10.073275] R13: 0000000000000010 R14: ff3f6d41c5c36000 R15: ff3f6d41c36b4c00
[   10.073314] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[   10.073354] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.073385] CR2: 00007f6292b8ff98 CR3: 0000000036043004 CR4: 0000000000771ef0
[   10.073431] PKRU: 55555554
[   10.073443] Call Trace:
[   10.073458]  <TASK>
[   10.073471]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   10.073492]  netif_close_many (net/core/dev.c:1804)
[   10.073516]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   10.073545]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   10.073569]  ? xas_load (lib/xarray.c:239)
[   10.073592]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   10.073620]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   10.073639]  cleanup_net (net/core/net_namespace.c:702)
[   10.073660]  process_one_work (kernel/workqueue.c:3314)
[   10.073681]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.073702]  ? rescuer_thread (kernel/workqueue.c:3672)
[   10.073723]  kthread (kernel/kthread.c:436)
[   10.073746]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.073763]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.073781]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.073803]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   10.073838] ---[ end trace 0000000000000000 ]---
| [   10.074073] ------------[ cut here ]------------
| [   10.074099] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/63
| [   10.074210] Tainted: [W]=WARN
[   10.074228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.074270] Workqueue: netns cleanup_net
[   10.074292] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.074319] 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
[   10.074407] RSP: 0018:ff6fadbe0022fc78 EFLAGS: 00010286
[   10.074433] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   10.074480] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[   10.074521] RBP: 0000000000000000 R08: ff3f6d41c614bc90 R09: ff3f6d41c5c2b834
[   10.074561] R10: ff3f6d41c5c37120 R11: fefefefefefefeff R12: 0000000000000000
[   10.074603] R13: 0000000000000011 R14: ff3f6d41c5c37000 R15: ff3f6d41c36b4c00
[   10.074646] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[   10.074687] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.074714] CR2: 00007f6292b8ff98 CR3: 0000000036043004 CR4: 0000000000771ef0
[   10.074755] PKRU: 55555554
[   10.074767] Call Trace:
[   10.074782]  <TASK>
[   10.074797]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.074825]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   10.074853]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   10.074873]  cleanup_net (net/core/net_namespace.c:702)
[   10.074894]  process_one_work (kernel/workqueue.c:3314)
[   10.074919]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.074935]  ? rescuer_thread (kernel/workqueue.c:3672)
[   10.074959]  kthread (kernel/kthread.c:436)
[   10.074976]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.074997]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.075019]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.075043]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   10.075076] ---[ end trace 0000000000000000 ]---
| [   10.075149] ------------[ cut here ]------------
| [   10.075177] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/63
| [   10.075300] Tainted: [W]=WARN
[   10.075325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.075368] Workqueue: netns cleanup_net
[   10.075389] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.075417] 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
[   10.075510] RSP: 0018:ff6fadbe0022fc78 EFLAGS: 00010286
[   10.075538] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   10.075579] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[   10.075615] RBP: 0000000000000000 R08: ff3f6d41c37dee10 R09: ff3f6d41c443d82c
[   10.075658] R10: ff3f6d41c5c09120 R11: fefefefefefefeff R12: 0000000000000000
[   10.075697] R13: 0000000000000011 R14: ff3f6d41c5c09000 R15: ff3f6d41c36b4c00
[   10.075745] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[   10.075788] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.075823] CR2: 00007f6292b8ff98 CR3: 0000000036043004 CR4: 0000000000771ef0
[   10.075864] PKRU: 55555554
[   10.075877] Call Trace:
[   10.075892]  <TASK>
[   10.075905]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.075932]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   10.075963]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   10.075984]  cleanup_net (net/core/net_namespace.c:702)
[   10.076004]  process_one_work (kernel/workqueue.c:3314)
[   10.076029]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.076049]  ? rescuer_thread (kernel/workqueue.c:3672)
[   10.076070]  kthread (kernel/kthread.c:436)
[   10.076093]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.076111]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.076134]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.076152]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   10.076186] ---[ end trace 0000000000000000 ]---
| [   10.076263] ------------[ cut here ]------------
| [   10.076289] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/63
| [   10.076402] Tainted: [W]=WARN
[   10.076423] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.076463] Workqueue: netns cleanup_net
[   10.076486] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.076512] 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
[   10.076607] RSP: 0018:ff6fadbe0022fc78 EFLAGS: 00010286
[   10.076634] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   10.076674] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[   10.076720] RBP: 0000000000000000 R08: ff3f6d41c614bd10 R09: ff3f6d41c5c2e034
[   10.076760] R10: ff3f6d41c5c36120 R11: fefefefefefefeff R12: 0000000000000000
[   10.076798] R13: 0000000000000011 R14: ff3f6d41c5c36000 R15: ff3f6d41c36b4c00
[   10.076848] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[   10.076889] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.076923] CR2: 00007f6292b8ff98 CR3: 0000000036043004 CR4: 0000000000771ef0
[   10.076965] PKRU: 55555554
[   10.076980] Call Trace:
[   10.076996]  <TASK>
[   10.077012]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.077046]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   10.077076]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   10.077097]  cleanup_net (net/core/net_namespace.c:702)
[   10.077121]  process_one_work (kernel/workqueue.c:3314)
[   10.077144]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.077166]  ? rescuer_thread (kernel/workqueue.c:3672)
[   10.077189]  kthread (kernel/kthread.c:436)
[   10.077212]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.077232]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.077260]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.077283]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   10.077319] ---[ end trace 0000000000000000 ]---
| [   10.077384] ------------[ cut here ]------------
| [   10.077411] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/63
| [   10.077520] Tainted: [W]=WARN
[   10.077542] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.077580] Workqueue: netns cleanup_net
[   10.077604] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.077635] 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
[   10.077728] RSP: 0018:ff6fadbe0022fc78 EFLAGS: 00010286
[   10.077752] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   10.077795] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f6d41c36b4c00
[   10.077838] RBP: 0000000000000000 R08: ff3f6d41c1228850 R09: ff3f6d41c5c2982c
[   10.077881] R10: ff3f6d41c5c15120 R11: fefefefefefefeff R12: 0000000000000000
[   10.077926] R13: 0000000000000011 R14: ff3f6d41c5c15000 R15: ff3f6d41c36b4c00
[   10.077966] FS:  0000000000000000(0000) GS:ff3f6d426cfc9000(0000) knlGS:0000000000000000
[   10.078015] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.078051] CR2: 00007f6292b8ff98 CR3: 0000000036043004 CR4: 0000000000771ef0
[   10.078090] PKRU: 55555554
[   10.078109] Call Trace:
[   10.078121]  <TASK>
[   10.078135]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.078165]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   10.078186]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   10.078205]  cleanup_net (net/core/net_namespace.c:702)
[   10.078229]  process_one_work (kernel/workqueue.c:3314)
[   10.078253]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.078271]  ? rescuer_thread (kernel/workqueue.c:3672)
[   10.078293]  kthread (kernel/kthread.c:436)
[   10.078316]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   10.078336]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.078357]  ? 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