======================================
| 0
| xx__-> [    7.957357][  T153] ------------[ cut here ]------------
| [    7.957651][  T153] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: bench-lookups_i/153
| [    7.958287][  T153] Tainted: [W]=WARN
[    7.958390][  T153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.958554][  T153] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    7.958723][  T153] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    7.959194][  T153] RSP: 0018:ffa0000000797ab0 EFLAGS: 00010286
[    7.959360][  T153] RAX: 00000000ffffffa6 RBX: ff110000027311c0 RCX: 1ff40000000f2f1c
[    7.959569][  T153] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000002731278
[    7.959762][  T153] RBP: ff110000051b1000 R08: 1fe22000004e6250 R09: ff1100000c2a8b80
[    7.959955][  T153] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    7.960156][  T153] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000051b1000
[    7.960355][  T153] FS:  00007fd90e4a1bc0(0000) GS:ff1100008a930000(0000) knlGS:0000000000000000
[    7.960586][  T153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.960750][  T153] CR2: 00007fd90e7bb004 CR3: 000000000971d006 CR4: 0000000000771ef0
[    7.960946][  T153] PKRU: 55555554
[    7.961081][  T153] Call Trace:
[    7.961186][  T153]  <TASK>
[    7.961253][  T153]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    7.961389][  T153]  ? notifier_call_chain (kernel/notifier.c:85)
[    7.961521][  T153]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    7.961620][  T153]  register_netdevice (net/core/dev.c:11488)
[    7.961760][  T153]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    7.961923][  T153]  register_netdev (net/core/dev.c:11552)
[    7.962052][  T153]  loopback_net_init (drivers/net/loopback.c:218)
[    7.962189][  T153]  ops_init (net/core/net_namespace.c:137)
[    7.962289][  T153]  setup_net (net/core/net_namespace.c:446)
[    7.962390][  T153]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    7.962519][  T153]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    7.962649][  T153]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    7.962781][  T153]  copy_net_ns (net/core/net_namespace.c:579)
[    7.962912][  T153]  create_new_namespaces (kernel/nsproxy.c:132)
[    7.963044][  T153]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    7.963232][  T153]  ksys_unshare (kernel/fork.c:3243)
[    7.963364][  T153]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    7.963497][  T153]  ? generic_file_open (./include/linux/fs.h:1148 (discriminator 4))
[    7.963629][  T153]  ? __ia32_sys_open (fs/open.c:1374)
[    7.963761][  T153]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    7.963890][  T153]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    7.964021][  T153]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    7.964205][  T153]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    7.964394][  T153]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    7.964525][  T153]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    7.964686][  T153] RIP: 0033:0x7fd90e59bbcb
[    7.964822][  T153] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    7.965315][  T153] RSP: 002b:00007ffffda3c658 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    7.965515][  T153] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fd90e59bbcb
[    7.965711][  T153] RDX: 0000000000000000 RSI: 00000000004119b5 RDI: 0000000040000000
[    7.965904][  T153] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    7.966097][  T153] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    7.966297][  T153] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000020
| [    7.967601][  T153] ---[ end trace 0000000000000000 ]---
| [    7.972684][  T153] ------------[ cut here ]------------
| [    7.972874][  T153] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: bench-lookups_i/153
| [    7.973454][  T153] Tainted: [W]=WARN
[    7.973552][  T153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.973710][  T153] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    7.973876][  T153] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    7.974337][  T153] RSP: 0018:ffa0000000797a98 EFLAGS: 00010286
[    7.974505][  T153] RAX: 00000000ffffffa6 RBX: ff11000002730ac0 RCX: 1ff40000000f2f19
[    7.974698][  T153] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000002730b78
[    7.974887][  T153] RBP: ff11000009fa4000 R08: 1fe22000004e6170 R09: ff1100000c2a8b80
[    7.975078][  T153] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    7.975276][  T153] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009fa4000
[    7.975474][  T153] FS:  00007fd90e4a1bc0(0000) GS:ff1100008a930000(0000) knlGS:0000000000000000
[    7.975697][  T153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.975859][  T153] CR2: 00007fd90e7bb004 CR3: 000000000971d006 CR4: 0000000000771ef0
[    7.976052][  T153] PKRU: 55555554
[    7.976154][  T153] Call Trace:
[    7.976250][  T153]  <TASK>
[    7.976315][  T153]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    7.976446][  T153]  ? notifier_call_chain (kernel/notifier.c:85)
[    7.976574][  T153]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    7.976672][  T153]  register_netdevice (net/core/dev.c:11488)
[    7.976801][  T153]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    7.976961][  T153]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    7.977089][  T153]  register_netdev (net/core/dev.c:11552)
[    7.977222][  T153]  sit_init_net (net/ipv6/sit.c:1860)
[    7.977352][  T153]  ops_init (net/core/net_namespace.c:137)
[    7.977453][  T153]  setup_net (net/core/net_namespace.c:446)
[    7.977552][  T153]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    7.977678][  T153]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    7.977806][  T153]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    7.977934][  T153]  copy_net_ns (net/core/net_namespace.c:579)
[    7.978062][  T153]  create_new_namespaces (kernel/nsproxy.c:132)
[    7.978198][  T153]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    7.978326][  T153]  ksys_unshare (kernel/fork.c:3243)
[    7.978460][  T153]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    7.978587][  T153]  ? generic_file_open (./include/linux/fs.h:1148 (discriminator 4))
[    7.978717][  T153]  ? __ia32_sys_open (fs/open.c:1374)
[    7.978844][  T153]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    7.978971][  T153]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    7.979099][  T153]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    7.979290][  T153]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    7.979423][  T153]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    7.979550][  T153]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    7.979707][  T153] RIP: 0033:0x7fd90e59bbcb
[    7.979842][  T153] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    7.980354][  T153] RSP: 002b:00007ffffda3c658 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    7.980550][  T153] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fd90e59bbcb
[    7.980740][  T153] RDX: 0000000000000000 RSI: 00000000004119b5 RDI: 0000000040000000
[    7.980929][  T153] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    7.981203][  T153] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    7.981397][  T153] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000020
| [    7.982736][  T153] ---[ end trace 0000000000000000 ]---
| [    7.990602][  T153] ------------[ cut here ]------------
| [    7.990746][  T153] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: bench-lookups_i/153
| [    7.991305][  T153] Tainted: [W]=WARN
[    7.991408][  T153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.991573][  T153] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    7.991740][  T153] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    7.992207][  T153] RSP: 0018:ffa0000000797ab0 EFLAGS: 00010286
[    7.992379][  T153] RAX: 00000000ffffffa6 RBX: ff1100000b883380 RCX: 1ff40000000f2f1c
[    7.992573][  T153] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b883438
[    7.992766][  T153] RBP: ff1100000c9cc000 R08: 1fe2200001710688 R09: ff1100000c2a8b80
[    7.992956][  T153] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    7.993156][  T153] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c9cc000
[    7.993349][  T153] FS:  00007fd90e4a1bc0(0000) GS:ff1100008a8b0000(0000) knlGS:0000000000000000
[    7.993585][  T153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.993748][  T153] CR2: 0000559d694fc0e8 CR3: 000000000971d002 CR4: 0000000000771ef0
[    7.993944][  T153] PKRU: 55555554
[    7.994041][  T153] Call Trace:
[    7.994141][  T153]  <TASK>
[    7.994207][  T153]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    7.994336][  T153]  ? notifier_call_chain (kernel/notifier.c:85)
[    7.994471][  T153]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    7.994571][  T153]  register_netdevice (net/core/dev.c:11488)
[    7.994702][  T153]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    7.994867][  T153]  register_netdev (net/core/dev.c:11552)
[    7.994996][  T153]  loopback_net_init (drivers/net/loopback.c:218)
[    7.995131][  T153]  ops_init (net/core/net_namespace.c:137)
[    7.995232][  T153]  setup_net (net/core/net_namespace.c:446)
[    7.995331][  T153]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    7.995464][  T153]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    7.995593][  T153]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    7.995726][  T153]  copy_net_ns (net/core/net_namespace.c:579)
[    7.995856][  T153]  create_new_namespaces (kernel/nsproxy.c:132)
[    7.995989][  T153]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    7.996118][  T153]  ksys_unshare (kernel/fork.c:3243)
[    7.996253][  T153]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    7.996385][  T153]  ? generic_file_open (./include/linux/fs.h:1148 (discriminator 4))
[    7.996515][  T153]  ? __ia32_sys_open (fs/open.c:1374)
[    7.996647][  T153]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    7.996776][  T153]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    7.996906][  T153]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    7.997035][  T153]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    7.997173][  T153]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    7.997303][  T153]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    7.997466][  T153] RIP: 0033:0x7fd90e59bbcb
[    7.997602][  T153] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    7.998062][  T153] RSP: 002b:00007ffffda3c658 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    7.998263][  T153] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fd90e59bbcb
[    7.998463][  T153] RDX: 0000000000000000 RSI: 00000000004119b5 RDI: 0000000040000000
[    7.998659][  T153] RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
[    7.998852][  T153] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000005
[    7.999045][  T153] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000020
| [    8.000350][  T153] ---[ end trace 0000000000000000 ]---
| [    8.009806][  T153] ------------[ cut here ]------------
| [    8.009943][  T153] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: bench-lookups_i/153
| [    8.010502][  T153] Tainted: [W]=WARN
[    8.010600][  T153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.010766][  T153] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.010932][  T153] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.011399][  T153] RSP: 0018:ffa0000000797a98 EFLAGS: 00010286
[    8.011564][  T153] RAX: 00000000ffffffa6 RBX: ff1100000b882740 RCX: 1ff40000000f2f19
[    8.011756][  T153] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b8827f8
[    8.011946][  T153] RBP: ff11000008249000 R08: 1fe2200001710500 R09: ff1100000c2a8b80
[    8.012140][  T153] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.012334][  T153] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008249000
[    8.012532][  T153] FS:  00007fd90e4a1bc0(0000) GS:ff1100008a8b0000(0000) knlGS:0000000000000000
[    8.012758][  T153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.012919][  T153] CR2: 0000559d694fc0e8 CR3: 000000000971d002 CR4: 0000000000771ef0
[    8.013113][  T153] PKRU: 55555554
[    8.013229][  T153] Call Trace:
[    8.013332][  T153]  <TASK>
[    8.013404][  T153]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.013537][  T153]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.013671][  T153]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.013774][  T153]  register_netdevice (net/core/dev.c:11488)
[    8.013907][  T153]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.014067][  T153]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.014204][  T153]  register_netdev (net/core/dev.c:11552)
[    8.014333][  T153]  sit_init_net (net/ipv6/sit.c:1860)
[    8.014468][  T153]  ops_init (net/core/net_namespace.c:137)
[    8.014565][  T153]  setup_net (net/core/net_namespace.c:446)
[    8.014662][  T153]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.014789][  T153]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.014917][  T153]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.015049][  T153]  copy_net_ns (net/core/net_namespace.c:579)
[    8.015184][  T153]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.015315][  T153]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.015449][  T153]  ksys_unshare (kernel/fork.c:3243)
[    8.015577][  T153]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.015705][  T153]  ? generic_file_open (./include/linux/fs.h:1148 (discriminator 4))
[    8.015833][  T153]  ? __ia32_sys_open (fs/open.c:1374)
[    8.015965][  T153]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.016093][  T153]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.016226][  T153]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.016355][  T153]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.016488][  T153]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.016615][  T153]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.016775][  T153] RIP: 0033:0x7fd90e59bbcb
[    8.016907][  T153] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.017367][  T153] RSP: 002b:00007ffffda3c658 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.017565][  T153] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fd90e59bbcb
[    8.017756][  T153] RDX: 0000000000000000 RSI: 00000000004119b5 RDI: 0000000040000000
[    8.017947][  T153] RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
[    8.018142][  T153] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000005
[    8.018340][  T153] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000020
| [    8.019632][  T153] ---[ end trace 0000000000000000 ]---
| [    8.025148][  T153] ------------[ cut here ]------------
| [    8.025319][  T153] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: bench-lookups_i/153
| [    8.025926][  T153] Tainted: [W]=WARN
[    8.026025][  T153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.026716][  T153] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.026889][  T153] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.027421][  T153] RSP: 0018:ffa0000000797020 EFLAGS: 00010286
[    8.027589][  T153] RAX: 00000000ffffffa6 RBX: ff1100000b338740 RCX: 1ff40000000f2dca
[    8.027786][  T153] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b3387f8
[    8.027983][  T153] RBP: ff1100000b3b9000 R08: 1fe2200001667100 R09: ff1100000c2a8b80
[    8.028237][  T153] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.028438][  T153] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000b8e158c
[    8.028637][  T153] FS:  00007fd90e4a1bc0(0000) GS:ff1100008a8b0000(0000) knlGS:0000000000000000
[    8.028867][  T153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.029033][  T153] CR2: 0000559d694fc0e8 CR3: 000000000971d002 CR4: 0000000000771ef0
[    8.029288][  T153] PKRU: 55555554
[    8.029392][  T153] Call Trace:
[    8.029491][  T153]  <TASK>
[    8.029558][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.029690][  T153]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.029822][  T153]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.029923][  T153]  __dev_notify_flags (net/core/dev.c:9787)
[    8.030055][  T153]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[    8.030244][  T153]  ? netif_change_name (net/core/dev.c:1495)
[    8.030382][  T153]  ? __dev_change_flags (net/core/dev.c:9739)
[    8.030516][  T153]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    8.030648][  T153]  ? trace_irq_enable.constprop.0 (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:649 ./include/linux/cpumask.h:1231 ./include/trace/events/preemptirq.h:40)
[    8.030814][  T153]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    8.030948][  T153]  veth_newlink (drivers/net/veth.c:1871)
[    8.031081][  T153]  ? veth_poll_controller (drivers/net/veth.c:1470)
[    8.031269][  T153]  ? kasan_save_stack (mm/kasan/common.c:57)
[    8.031407][  T153]  ? kasan_save_track (mm/kasan/common.c:78)
[    8.031538][  T153]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    8.031682][  T153]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    8.031814][  T153]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    8.031947][  T153]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    8.032079][  T153]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.032269][  T153]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[    8.032407][  T153]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    8.032540][  T153]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    8.032671][  T153]  ? __dev_get_by_name (net/core/dev.c:883)
[    8.032802][  T153]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    8.032940][  T153]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    8.033075][  T153]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.033266][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.033402][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.033536][  T153]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.033671][  T153]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.033803][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.033935][  T153]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.034068][  T153]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.034255][  T153]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.034392][  T153]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.034525][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.034656][  T153]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.034789][  T153]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.034922][  T153]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.035053][  T153]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.035246][  T153]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    8.035381][  T153]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    8.035516][  T153]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.035648][  T153]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.035781][  T153]  ? netlink_autobind.isra.0 (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:815 (discriminator 2))
[    8.035915][  T153]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[    8.036052][  T153]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.036245][  T153]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.036387][  T153]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[    8.036557][  T153]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[    8.036728][  T153]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.036866][  T153]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    8.037004][  T153]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    8.037198][  T153]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.037341][  T153]  ? update_socket_protocol+0x10/0x10
[    8.037483][  T153]  ? __ia32_sys_open (fs/open.c:1374)
[    8.037623][  T153]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    8.037761][  T153]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.037932][  T153]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.038068][  T153]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.038262][  T153]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.038406][  T153]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.038545][  T153]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.038682][  T153]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.038852][  T153] RIP: 0033:0x7fd90e51308e
[    8.038995][  T153] 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
[    8.039545][  T153] RSP: 002b:00007ffffda3bd50 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    8.039753][  T153] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007fd90e51308e
[    8.039958][  T153] RDX: 0000000000000078 RSI: 00007ffffda3bde0 RDI: 0000000000000008
[    8.040220][  T153] RBP: 00007ffffda3bd60 R08: 0000000000000000 R09: 0000000000000000
[    8.040430][  T153] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
[    8.040634][  T153] R13: 0000000000000045 R14: 0000000000411f27 R15: 0000000000000020
| [    8.042063][  T153] ---[ end trace 0000000000000000 ]---
| [    8.048298][  T153] ------------[ cut here ]------------
| [    8.048505][  T153] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bench-lookups_i/153
| [    8.049251][  T153] Tainted: [W]=WARN
[    8.049412][  T153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.049627][  T153] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.049850][  T153] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.050390][  T153] RSP: 0018:ffa00000007973a0 EFLAGS: 00010286
[    8.050609][  T153] RAX: 00000000ffffffa6 RBX: ff1100000c35d000 RCX: 1ff40000000f2e3a
[    8.050855][  T153] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c35d0b8
[    8.051102][  T153] RBP: ff11000007594000 R08: 1fe220000186ba18 R09: ff1100000c2a8b80
[    8.051359][  T153] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    8.051622][  T153] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[    8.051870][  T153] FS:  00007fd90e4a1bc0(0000) GS:ff1100008a9b0000(0000) knlGS:0000000000000000
[    8.052164][  T153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.052386][  T153] CR2: 00007febd542f0a0 CR3: 000000000971d003 CR4: 0000000000771ef0
[    8.052641][  T153] PKRU: 55555554
[    8.052791][  T153] Call Trace:
[    8.052939][  T153]  <TASK>
[    8.053055][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.053246][  T153]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.053440][  T153]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116)
[    8.053627][  T153]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.053777][  T153]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.053963][  T153]  __dev_notify_flags (net/core/dev.c:9787)
[    8.054161][  T153]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.054343][  T153]  ? netif_change_name (net/core/dev.c:1495)
[    8.054529][  T153]  ? __dev_change_flags (net/core/dev.c:9739)
[    8.054712][  T153]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    8.054895][  T153]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    8.055081][  T153]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.055280][  T153]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    8.055470][  T153]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    8.055656][  T153]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    8.055838][  T153]  ? __dev_get_by_name (net/core/dev.c:883)
[    8.056021][  T153]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    8.056218][  T153]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    8.056414][  T153]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.056599][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.056782][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.056965][  T153]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.057169][  T153]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.057353][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.057546][  T153]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.057728][  T153]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.057910][  T153]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.058096][  T153]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.058292][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.058493][  T153]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.058676][  T153]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.058862][  T153]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.059046][  T153]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.059247][  T153]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    8.059434][  T153]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    8.059622][  T153]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.059805][  T153]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.059989][  T153]  ? netlink_autobind.isra.0 (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:815 (discriminator 2))
[    8.060180][  T153]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[    8.060363][  T153]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.060554][  T153]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.060736][  T153]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[    8.060953][  T153]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[    8.061180][  T153]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.061364][  T153]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    8.061555][  T153]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    8.061740][  T153]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.061926][  T153]  ? update_socket_protocol+0x10/0x10
[    8.062110][  T153]  ? __ia32_sys_open (fs/open.c:1374)
[    8.062307][  T153]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    8.062503][  T153]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.062720][  T153]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.062899][  T153]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.063081][  T153]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.063276][  T153]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.063466][  T153]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.063656][  T153]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.063870][  T153] RIP: 0033:0x7fd90e51308e
[    8.064056][  T153] 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
[    8.064593][  T153] RSP: 002b:00007ffffda3bd50 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    8.064847][  T153] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007fd90e51308e
[    8.065092][  T153] RDX: 0000000000000078 RSI: 00007ffffda3bde0 RDI: 0000000000000008
[    8.065346][  T153] RBP: 00007ffffda3bd60 R08: 0000000000000000 R09: 0000000000000000
[    8.065600][  T153] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
[    8.065853][  T153] R13: 0000000000000045 R14: 0000000000411f27 R15: 0000000000000020
| [    8.067597][  T153] ---[ end trace 0000000000000000 ]---
| [    8.069552][   T12] ------------[ cut here ]------------
| [    8.069764][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [    8.070336][   T12] Tainted: [W]=WARN
[    8.070435][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.070588][   T12] Workqueue: netns cleanup_net
[    8.073430][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.073622][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.074054][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[    8.074221][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c35c3c0 RCX: 1ff4000000018eed
[    8.074411][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c35c478
[    8.074592][   T12] RBP: ff11000009fa4000 R08: 1fe220000186b890 R09: ff11000001b0d1d0
[    8.074774][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.074954][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.075142][   T12] FS:  0000000000000000(0000) GS:ff1100008a8b0000(0000) knlGS:0000000000000000
[    8.075412][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.075567][   T12] CR2: 0000559d694fc0e8 CR3: 000000000971d002 CR4: 0000000000771ef0
[    8.075750][   T12] PKRU: 55555554
[    8.075840][   T12] Call Trace:
[    8.075931][   T12]  <TASK>
[    8.075995][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    8.076159][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    8.076309][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[    8.076438][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[    8.076561][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    8.076682][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[    8.076803][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[    8.076926][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    8.077051][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    8.077177][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.077298][   T12]  cleanup_net (net/core/net_namespace.c:702)
[    8.077426][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[    8.077547][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    8.077668][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.077791][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.077917][   T12]  process_one_work (kernel/workqueue.c:3314)
[    8.078041][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.078169][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.078294][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.078423][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.078545][   T12]  kthread (kernel/kthread.c:436)
[    8.078636][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.078787][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.078907][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.079029][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.079186][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.079308][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.079435][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.080593][   T12] ---[ end trace 0000000000000000 ]---
| [    8.088914][  T153] ------------[ cut here ]------------
| [    8.089105][  T153] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bench-lookups_i/153
| [    8.090238][  T153] Tainted: [W]=WARN
[    8.090395][  T153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.090627][  T153] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.090847][  T153] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.091382][  T153] RSP: 0018:ffa0000000797ab0 EFLAGS: 00010286
[    8.091614][  T153] RAX: 00000000ffffffa6 RBX: ff11000008ea6900 RCX: 1ff40000000f2f1c
[    8.091857][  T153] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008ea69b8
[    8.092099][  T153] RBP: ff1100000c84c000 R08: 1fe22000011d4d38 R09: ff1100000c2a8b80
[    8.092357][  T153] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    8.092609][  T153] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c84c000
[    8.092872][  T153] FS:  00007fd90e4a1bc0(0000) GS:ff1100008a9b0000(0000) knlGS:0000000000000000
[    8.093161][  T153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.093384][  T153] CR2: 000000002577e018 CR3: 000000000971d003 CR4: 0000000000771ef0
[    8.093632][  T153] PKRU: 55555554
[    8.093795][  T153] Call Trace:
[    8.093941][  T153]  <TASK>
[    8.094055][  T153]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.094244][  T153]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.094431][  T153]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.094584][  T153]  register_netdevice (net/core/dev.c:11488)
[    8.094766][  T153]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.094980][  T153]  register_netdev (net/core/dev.c:11552)
[    8.095191][  T153]  loopback_net_init (drivers/net/loopback.c:218)
[    8.095372][  T153]  ops_init (net/core/net_namespace.c:137)
[    8.095530][  T153]  setup_net (net/core/net_namespace.c:446)
[    8.095678][  T153]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.095856][  T153]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.096039][  T153]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.096235][  T153]  copy_net_ns (net/core/net_namespace.c:579)
[    8.096454][  T153]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.096639][  T153]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.096820][  T153]  ksys_unshare (kernel/fork.c:3243)
[    8.097002][  T153]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.097197][  T153]  ? ksys_write (fs/read_write.c:740)
[    8.097387][  T153]  ? __ia32_sys_open (fs/open.c:1374)
[    8.097584][  T153]  ? __ia32_sys_read (fs/read_write.c:724)
[    8.097765][  T153]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.097945][  T153]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.098137][  T153]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.098319][  T153]  ? irq_exit_rcu (kernel/softirq.c:754)
[    8.098511][  T153]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.098744][  T153] RIP: 0033:0x7fd90e59bbcb
[    8.098930][  T153] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.099465][  T153] RSP: 002b:00007ffffda3c6b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.099712][  T153] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd90e59bbcb
[    8.099976][  T153] RDX: 0000000000000000 RSI: 00000000004119b5 RDI: 0000000040000000
[    8.100233][  T153] RBP: 000000006a10dbf1 R08: 0000000000000000 R09: 0000000000000000
[    8.100487][  T153] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000001fe000a
[    8.100730][  T153] R13: 0000000000000000 R14: 000000000000001f R15: 0000000000000020
| [    8.102478][  T153] ---[ end trace 0000000000000000 ]---
| [    8.103348][   T12] ------------[ cut here ]------------
| [    8.103496][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [    8.104027][   T12] Tainted: [W]=WARN
[    8.104120][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.104324][   T12] Workqueue: netns cleanup_net
[    8.104460][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.104624][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.105063][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[    8.105227][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b3303c0 RCX: 1ff4000000018ed5
[    8.105420][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b330478
[    8.105605][   T12] RBP: ff11000007594000 R08: 1fe2200001666090 R09: ff11000001b0d1d0
[    8.105790][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.105976][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.106167][   T12] FS:  0000000000000000(0000) GS:ff1100008a8b0000(0000) knlGS:0000000000000000
[    8.106388][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.106543][   T12] CR2: 0000559d694fc0e8 CR3: 000000000971d002 CR4: 0000000000771ef0
[    8.106729][   T12] PKRU: 55555554
[    8.106820][   T12] Call Trace:
[    8.106913][   T12]  <TASK>
[    8.106977][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    8.107147][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    8.107300][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[    8.107431][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    8.107553][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[    8.107710][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    8.107835][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[    8.107960][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[    8.108090][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    8.108224][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    8.108347][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.108479][   T12]  cleanup_net (net/core/net_namespace.c:702)
[    8.108603][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[    8.108726][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    8.108851][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.108975][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.109102][   T12]  process_one_work (kernel/workqueue.c:3314)
[    8.109234][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.109357][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.109490][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.109618][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.109742][   T12]  kthread (kernel/kthread.c:436)
[    8.109835][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.109988][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.110112][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.110244][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.110401][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.110529][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.110652][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.111823][   T12] ---[ end trace 0000000000000000 ]---
| [    8.125833][   T12] ------------[ cut here ]------------
| [    8.125976][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [    8.126510][   T12] Tainted: [W]=WARN
[    8.126604][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.126757][   T12] Workqueue: netns cleanup_net
[    8.126889][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.127051][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.127502][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[    8.127657][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b330ac0 RCX: 1ff4000000018ed5
[    8.127841][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b330b78
[    8.128023][   T12] RBP: ff1100000b3b9000 R08: 1fe2200001666170 R09: ff11000001b0d1d0
[    8.128213][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.128399][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.128585][   T12] FS:  0000000000000000(0000) GS:ff1100008a8b0000(0000) knlGS:0000000000000000
[    8.128800][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.128954][   T12] CR2: 0000559d694fc0e8 CR3: 000000000971d002 CR4: 0000000000771ef0
[    8.129142][   T12] PKRU: 55555554
[    8.129238][   T12] Call Trace:
[    8.129330][   T12]  <TASK>
[    8.129399][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    8.129557][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    8.129714][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[    8.129838][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    8.129961][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[    8.130117][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    8.130248][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[    8.130373][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[    8.130505][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    8.130629][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    8.130751][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.130876][   T12]  cleanup_net (net/core/net_namespace.c:702)
[    8.131000][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[    8.131123][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    8.131284][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.131412][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.131537][   T12]  process_one_work (kernel/workqueue.c:3314)
[    8.131664][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.131787][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.131914][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.132040][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.132170][   T12]  kthread (kernel/kthread.c:436)
[    8.132264][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.132422][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.132546][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.132671][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.132826][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.132949][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.133073][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.134313][   T12] ---[ end trace 0000000000000000 ]---
| [    8.135539][   T12] ------------[ cut here ]------------
| [    8.135675][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [    8.136201][   T12] Tainted: [W]=WARN
[    8.136294][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.136451][   T12] Workqueue: netns cleanup_net
[    8.136582][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.136739][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.137185][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[    8.137340][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b3311c0 RCX: 1ff4000000018ed5
[    8.137526][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b331278
[    8.137710][   T12] RBP: ff110000051b1000 R08: 1fe2200001666250 R09: ff11000001b0d1d0
[    8.137892][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.138076][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.138265][   T12] FS:  0000000000000000(0000) GS:ff1100008a8b0000(0000) knlGS:0000000000000000
[    8.138488][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.138647][   T12] CR2: 0000559d694fc0e8 CR3: 000000000971d002 CR4: 0000000000771ef0
[    8.138829][   T12] PKRU: 55555554
[    8.138921][   T12] Call Trace:
[    8.139013][   T12]  <TASK>
[    8.139076][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    8.139239][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    8.139398][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[    8.139522][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    8.139644][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[    8.139801][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    8.139925][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[    8.140049][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[    8.140180][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    8.140338][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    8.140463][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.140587][   T12]  cleanup_net (net/core/net_namespace.c:702)
[    8.140710][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[    8.140833][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    8.140961][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.141095][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.141239][   T12]  process_one_work (kernel/workqueue.c:3314)
[    8.141366][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.141493][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.141620][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.141746][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.141868][   T12]  kthread (kernel/kthread.c:436)
[    8.141961][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.142122][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.142256][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.142385][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.142538][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.142666][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.142787][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.144021][   T12] ---[ end trace 0000000000000000 ]---
| [    8.147877][  T153] ------------[ cut here ]------------
| [    8.148066][  T153] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bench-lookups_i/153
| [    8.148754][  T153] Tainted: [W]=WARN
[    8.148900][  T153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.149111][  T153] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.149344][  T153] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.149864][  T153] RSP: 0018:ffa0000000797a98 EFLAGS: 00010286
[    8.150078][  T153] RAX: 00000000ffffffa6 RBX: ff1100000a4d8ac0 RCX: 1ff40000000f2f19
[    8.150335][  T153] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a4d8b78
[    8.150590][  T153] RBP: ff1100000c7e9000 R08: 1fe220000149b170 R09: ff1100000c2a8b80
[    8.150835][  T153] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    8.151078][  T153] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c7e9000
[    8.151337][  T153] FS:  00007fd90e4a1bc0(0000) GS:ff1100008a9b0000(0000) knlGS:0000000000000000
[    8.151622][  T153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.151836][  T153] CR2: 000000002577e018 CR3: 000000000971d003 CR4: 0000000000771ef0
[    8.152083][  T153] PKRU: 55555554
[    8.152242][  T153] Call Trace:
[    8.152396][  T153]  <TASK>
[    8.152511][  T153]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.152692][  T153]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.152870][  T153]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.153019][  T153]  register_netdevice (net/core/dev.c:11488)
[    8.153215][  T153]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.153435][  T153]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.153619][  T153]  register_netdev (net/core/dev.c:11552)
[    8.153799][  T153]  sit_init_net (net/ipv6/sit.c:1860)
[    8.153979][  T153]  ops_init (net/core/net_namespace.c:137)
[    8.154142][  T153]  setup_net (net/core/net_namespace.c:446)
[    8.154289][  T153]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.154479][  T153]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.154659][  T153]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.154841][  T153]  copy_net_ns (net/core/net_namespace.c:579)
[    8.155022][  T153]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.155214][  T153]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.155400][  T153]  ksys_unshare (kernel/fork.c:3243)
[    8.155582][  T153]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.155763][  T153]  ? ksys_write (fs/read_write.c:740)
[    8.155943][  T153]  ? __ia32_sys_open (fs/open.c:1374)
[    8.156122][  T153]  ? __ia32_sys_read (fs/read_write.c:724)
[    8.156318][  T153]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.156510][  T153]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.156692][  T153]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.156873][  T153]  ? irq_exit_rcu (kernel/softirq.c:754)
[    8.157053][  T153]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.157277][  T153] RIP: 0033:0x7fd90e59bbcb
[    8.157471][  T153] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.157989][  T153] RSP: 002b:00007ffffda3c6b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.158243][  T153] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd90e59bbcb
[    8.158500][  T153] RDX: 0000000000000000 RSI: 00000000004119b5 RDI: 0000000040000000
[    8.158743][  T153] RBP: 000000006a10dbf1 R08: 0000000000000000 R09: 0000000000000000
[    8.158986][  T153] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000001fe000a
[    8.159241][  T153] R13: 0000000000000000 R14: 000000000000001f R15: 0000000000000020
| [    8.160915][  T153] ---[ end trace 0000000000000000 ]---
| [    8.169422][  T153] ------------[ cut here ]------------
| [    8.169609][  T153] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bench-lookups_i/153
| [    8.170289][  T153] Tainted: [W]=WARN
[    8.170443][  T153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.170657][  T153] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.170879][  T153] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.171485][  T153] RSP: 0018:ffa0000000797ab0 EFLAGS: 00010286
[    8.171724][  T153] RAX: 00000000ffffffa6 RBX: ff1100000c35d8c0 RCX: 1ff40000000f2f1c
[    8.171968][  T153] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c35d978
[    8.172227][  T153] RBP: ff1100000d524000 R08: 1fe220000186bb30 R09: ff1100000c2a8b80
[    8.172481][  T153] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    8.172724][  T153] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d524000
[    8.172969][  T153] FS:  00007fd90e4a1bc0(0000) GS:ff1100008a9b0000(0000) knlGS:0000000000000000
[    8.173261][  T153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.173494][  T153] CR2: 000000002577e018 CR3: 000000000971d003 CR4: 0000000000771ef0
[    8.173742][  T153] PKRU: 55555554
[    8.173887][  T153] Call Trace:
[    8.174033][  T153]  <TASK>
[    8.174162][  T153]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.174346][  T153]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.174533][  T153]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.174682][  T153]  register_netdevice (net/core/dev.c:11488)
[    8.174863][  T153]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.175078][  T153]  register_netdev (net/core/dev.c:11552)
[    8.175270][  T153]  loopback_net_init (drivers/net/loopback.c:218)
[    8.175457][  T153]  ops_init (net/core/net_namespace.c:137)
[    8.175606][  T153]  setup_net (net/core/net_namespace.c:446)
[    8.175757][  T153]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.175936][  T153]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.176116][  T153]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.176311][  T153]  copy_net_ns (net/core/net_namespace.c:579)
[    8.176504][  T153]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.176691][  T153]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.176874][  T153]  ksys_unshare (kernel/fork.c:3243)
[    8.177054][  T153]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.177245][  T153]  ? ksys_write (fs/read_write.c:740)
[    8.177434][  T153]  ? __ia32_sys_open (fs/open.c:1374)
[    8.177612][  T153]  ? __ia32_sys_read (fs/read_write.c:724)
[    8.177794][  T153]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.177974][  T153]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.178167][  T153]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.178351][  T153]  ? irq_exit_rcu (kernel/softirq.c:754)
[    8.178538][  T153]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.178750][  T153] RIP: 0033:0x7fd90e59bbcb
[    8.178935][  T153] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.179467][  T153] RSP: 002b:00007ffffda3c6b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.179716][  T153] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd90e59bbcb
[    8.179960][  T153] RDX: 0000000000000000 RSI: 00000000004119b5 RDI: 0000000040000000
[    8.180218][  T153] RBP: 000000006a10dbf1 R08: 0000000000000000 R09: 0000000000000000
[    8.180471][  T153] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000001fe000a
[    8.180718][  T153] R13: 0000000000000000 R14: 000000000000001f R15: 0000000000000020
| [    8.182405][  T153] ---[ end trace 0000000000000000 ]---
| [    8.185506][  T153] ------------[ cut here ]------------
| [    8.185701][  T153] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bench-lookups_i/153
| [    8.186383][  T153] Tainted: [W]=WARN
[    8.186532][  T153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.186745][  T153] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.186966][  T153] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.187499][  T153] RSP: 0018:ffa0000000797a98 EFLAGS: 00010286
[    8.187713][  T153] RAX: 00000000ffffffa6 RBX: ff110000092aba80 RCX: 1ff40000000f2f19
[    8.187960][  T153] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000092abb38
[    8.188218][  T153] RBP: ff1100000d559000 R08: 1fe2200001255768 R09: ff1100000c2a8b80
[    8.188468][  T153] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    8.188712][  T153] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d559000
[    8.188959][  T153] FS:  00007fd90e4a1bc0(0000) GS:ff1100008a9b0000(0000) knlGS:0000000000000000
[    8.189244][  T153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.189465][  T153] CR2: 000000002577e018 CR3: 000000000971d003 CR4: 0000000000771ef0
[    8.189712][  T153] PKRU: 55555554
[    8.189857][  T153] Call Trace:
[    8.190004][  T153]  <TASK>
[    8.190121][  T153]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.190314][  T153]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.190503][  T153]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.190652][  T153]  register_netdevice (net/core/dev.c:11488)
[    8.190835][  T153]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.191048][  T153]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.191241][  T153]  register_netdev (net/core/dev.c:11552)
[    8.191433][  T153]  sit_init_net (net/ipv6/sit.c:1860)
[    8.191615][  T153]  ops_init (net/core/net_namespace.c:137)
[    8.191764][  T153]  setup_net (net/core/net_namespace.c:446)
[    8.191912][  T153]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.192090][  T153]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.192278][  T153]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.192467][  T153]  copy_net_ns (net/core/net_namespace.c:579)
[    8.192650][  T153]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.192832][  T153]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.193011][  T153]  ksys_unshare (kernel/fork.c:3243)
[    8.193204][  T153]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.193390][  T153]  ? ksys_write (fs/read_write.c:740)
[    8.193570][  T153]  ? __ia32_sys_open (fs/open.c:1374)
[    8.193748][  T153]  ? __ia32_sys_read (fs/read_write.c:724)
[    8.193930][  T153]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.194111][  T153]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.194305][  T153]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.194490][  T153]  ? irq_exit_rcu (kernel/softirq.c:754)
[    8.194670][  T153]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.194881][  T153] RIP: 0033:0x7fd90e59bbcb
[    8.195067][  T153] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.195603][  T153] RSP: 002b:00007ffffda3c6b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.195849][  T153] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd90e59bbcb
[    8.196093][  T153] RDX: 0000000000000000 RSI: 00000000004119b5 RDI: 0000000040000000
[    8.196454][  T153] RBP: 000000006a10dbf1 R08: 0000000000000000 R09: 0000000000000000
[    8.196701][  T153] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000001fe000a
[    8.196945][  T153] R13: 0000000000000000 R14: 000000000000001f R15: 0000000000000020
| [    8.198903][  T153] ---[ end trace 0000000000000000 ]---
| [    8.220229][   T12] ------------[ cut here ]------------
| [    8.220386][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [    8.220908][   T12] Tainted: [W]=WARN
[    8.221004][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.221186][   T12] Workqueue: netns cleanup_net
[    8.221315][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.221480][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.221910][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[    8.222072][   T12] RAX: 00000000ffffffa6 RBX: ff110000092ab000 RCX: 1ff4000000018eed
[    8.222257][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000092ab0b8
[    8.222442][   T12] RBP: ff11000008249000 R08: 1fe2200001255618 R09: ff11000001b0d1d0
[    8.222623][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.222806][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.222991][   T12] FS:  0000000000000000(0000) GS:ff1100008a8b0000(0000) knlGS:0000000000000000
[    8.223216][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.223373][   T12] CR2: 0000559d694fc0e8 CR3: 000000000971d002 CR4: 0000000000771ef0
[    8.223561][   T12] PKRU: 55555554
[    8.223654][   T12] Call Trace:
[    8.223745][   T12]  <TASK>
[    8.223808][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    8.223964][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    8.224116][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[    8.224247][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[    8.224369][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    8.224497][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[    8.224622][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[    8.224744][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    8.224866][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    8.224987][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.225110][   T12]  cleanup_net (net/core/net_namespace.c:702)
[    8.225239][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[    8.225361][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    8.225489][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.225613][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.225738][   T12]  process_one_work (kernel/workqueue.c:3314)
[    8.225863][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.225985][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.226111][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.226243][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.226365][   T12]  kthread (kernel/kthread.c:436)
[    8.226463][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.226641][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.226764][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.226888][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.227040][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.227168][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.227291][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.228476][   T12] ---[ end trace 0000000000000000 ]---
| [    8.240800][   T12] ------------[ cut here ]------------
| [    8.240947][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [    8.241485][   T12] Tainted: [W]=WARN
[    8.241578][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.241730][   T12] Workqueue: netns cleanup_net
[    8.241859][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.242018][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.242471][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[    8.242632][   T12] RAX: 00000000ffffffa6 RBX: ff110000092aa740 RCX: 1ff4000000018ed5
[    8.242815][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000092aa7f8
[    8.243001][   T12] RBP: ff1100000c9cc000 R08: 1fe2200001255500 R09: ff11000001b0d1d0
[    8.243191][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.243379][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.243566][   T12] FS:  0000000000000000(0000) GS:ff1100008a8b0000(0000) knlGS:0000000000000000
[    8.243782][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.243935][   T12] CR2: 0000559d694fc0e8 CR3: 000000000971d002 CR4: 0000000000771ef0
[    8.244119][   T12] PKRU: 55555554
[    8.244237][   T12] Call Trace:
[    8.244329][   T12]  <TASK>
[    8.244397][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    8.244555][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    8.244713][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[    8.244838][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    8.244963][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[    8.245086][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[    8.245218][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    8.245342][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    8.245470][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.245596][   T12]  cleanup_net (net/core/net_namespace.c:702)
[    8.245719][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[    8.245842][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    8.245966][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.246088][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.246219][   T12]  process_one_work (kernel/workqueue.c:3314)
[    8.246345][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.246472][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.246599][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.246727][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.246850][   T12]  kthread (kernel/kthread.c:436)
[    8.246945][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.247099][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.247229][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.247353][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.247510][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.247632][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.247756][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.248933][   T12] ---[ end trace 0000000000000000 ]---
| [    8.325044][  T153] ------------[ cut here ]------------
| [    8.325268][  T153] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bench-lookups_i/153
| [    8.325949][  T153] Tainted: [W]=WARN
[    8.326096][  T153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.326323][  T153] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.326557][  T153] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.327083][  T153] RSP: 0018:ffa0000000797020 EFLAGS: 00010286
[    8.327315][  T153] RAX: 00000000ffffffa6 RBX: ff1100000f05d540 RCX: 1ff40000000f2dca
[    8.327577][  T153] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000f05d5f8
[    8.327824][  T153] RBP: ff1100000c421000 R08: 1fe2200001e0bac0 R09: ff1100000c2a8b80
[    8.328071][  T153] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    8.328331][  T153] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000936c08c
[    8.328594][  T153] FS:  00007fd90e4a1bc0(0000) GS:ff1100008a9b0000(0000) knlGS:0000000000000000
[    8.328880][  T153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.329100][  T153] CR2: 0000000025794218 CR3: 000000000971d003 CR4: 0000000000771ef0
[    8.329366][  T153] PKRU: 55555554
[    8.329523][  T153] Call Trace:
[    8.329671][  T153]  <TASK>
[    8.329787][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.329971][  T153]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.330169][  T153]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116)
[    8.330354][  T153]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.330515][  T153]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.330700][  T153]  __dev_notify_flags (net/core/dev.c:9787)
[    8.330884][  T153]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.331070][  T153]  ? netif_change_name (net/core/dev.c:1495)
[    8.331267][  T153]  ? __dev_change_flags (net/core/dev.c:9739)
[    8.331457][  T153]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    8.331642][  T153]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.331829][  T153]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.332015][  T153]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    8.332213][  T153]  veth_newlink (drivers/net/veth.c:1871)
[    8.332408][  T153]  ? veth_poll_controller (drivers/net/veth.c:1470)
[    8.332592][  T153]  ? kasan_save_stack (mm/kasan/common.c:57)
[    8.332778][  T153]  ? kasan_save_track (mm/kasan/common.c:78)
[    8.332964][  T153]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    8.333172][  T153]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    8.333356][  T153]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    8.333549][  T153]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    8.333735][  T153]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.333921][  T153]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[    8.334106][  T153]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    8.334305][  T153]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    8.334491][  T153]  ? __dev_get_by_name (net/core/dev.c:883)
[    8.334676][  T153]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    8.334864][  T153]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    8.335051][  T153]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.335247][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.335438][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.335621][  T153]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.335808][  T153]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.335992][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.336189][  T153]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.336382][  T153]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.336575][  T153]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.336758][  T153]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.336944][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.337139][  T153]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.337323][  T153]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.337514][  T153]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.337698][  T153]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.337884][  T153]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    8.338069][  T153]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    8.338270][  T153]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.338460][  T153]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.338644][  T153]  ? netlink_autobind.isra.0 (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:815 (discriminator 2))
[    8.338829][  T153]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[    8.339016][  T153]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.339214][  T153]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.339409][  T153]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    8.339595][  T153]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    8.339781][  T153]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.339967][  T153]  ? update_socket_protocol+0x10/0x10
[    8.340162][  T153]  ? alloc_file_clone (fs/file_table.c:477)
[    8.340348][  T153]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    8.340539][  T153]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.340758][  T153]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.340939][  T153]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.341122][  T153]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.341319][  T153]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.341511][  T153]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.341695][  T153]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.341911][  T153] RIP: 0033:0x7fd90e51ee32
[    8.342100][  T153] 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)
[    8.342648][  T153] RSP: 002b:00007ffffda3bd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    8.342900][  T153] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007fd90e51ee32
[    8.343167][  T153] RDX: 0000000000000078 RSI: 00007ffffda3be40 RDI: 0000000000000009
[    8.343423][  T153] RBP: 00007ffffda3bdc0 R08: 0000000000000000 R09: 0000000000000000
[    8.343673][  T153] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000009
[    8.343921][  T153] R13: 0000000000000045 R14: 00000000004120b0 R15: 0000000000000020
| [    8.345653][  T153] ---[ end trace 0000000000000000 ]---
| [    8.352802][  T153] ------------[ cut here ]------------
| [    8.353000][  T153] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bench-lookups_i/153
| [    8.354235][  T153] Tainted: [W]=WARN
[    8.354457][  T153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.354731][  T153] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.355012][  T153] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.355613][  T153] RSP: 0018:ffa00000007973a0 EFLAGS: 00010286
[    8.355884][  T153] RAX: 00000000ffffffa6 RBX: ff11000009038200 RCX: 1ff40000000f2e3a
[    8.356197][  T153] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000090382b8
[    8.356509][  T153] RBP: ff11000009f19000 R08: 1fe2200001207058 R09: ff1100000c2a8b80
[    8.356810][  T153] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    8.357111][  T153] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[    8.357440][  T153] FS:  00007fd90e4a1bc0(0000) GS:ff1100008a9b0000(0000) knlGS:0000000000000000
[    8.357782][  T153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.358053][  T153] CR2: 0000000025794218 CR3: 000000000971d003 CR4: 0000000000771ef0
[    8.358367][  T153] PKRU: 55555554
[    8.358577][  T153] Call Trace:
[    8.358778][  T153]  <TASK>
[    8.358947][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.359196][  T153]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.359441][  T153]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116)
[    8.359679][  T153]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.359884][  T153]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.360120][  T153]  __dev_notify_flags (net/core/dev.c:9787)
[    8.360427][  T153]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.360665][  T153]  ? netif_change_name (net/core/dev.c:1495)
[    8.360902][  T153]  ? __dev_change_flags (net/core/dev.c:9739)
[    8.361153][  T153]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    8.361399][  T153]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    8.361635][  T153]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.361873][  T153]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    8.362111][  T153]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    8.362361][  T153]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    8.362607][  T153]  ? __dev_get_by_name (net/core/dev.c:883)
[    8.362846][  T153]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    8.363091][  T153]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    8.363341][  T153]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.363585][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.363822][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.364060][  T153]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.364322][  T153]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.364520][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.364709][  T153]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.364893][  T153]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.365078][  T153]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.365273][  T153]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.365468][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.365651][  T153]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.365835][  T153]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.366018][  T153]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.366214][  T153]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.366408][  T153]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    8.366591][  T153]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    8.366776][  T153]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.366959][  T153]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.367152][  T153]  ? netlink_autobind.isra.0 (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:815 (discriminator 2))
[    8.367335][  T153]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[    8.367529][  T153]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.367714][  T153]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.367899][  T153]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    8.368083][  T153]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    8.368282][  T153]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.368478][  T153]  ? update_socket_protocol+0x10/0x10
[    8.368664][  T153]  ? alloc_file_clone (fs/file_table.c:477)
[    8.368853][  T153]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    8.369036][  T153]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.369265][  T153]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.369454][  T153]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.369636][  T153]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.369819][  T153]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.370000][  T153]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.370197][  T153]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.370423][  T153] RIP: 0033:0x7fd90e51ee32
[    8.370610][  T153] 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)
[    8.371143][  T153] RSP: 002b:00007ffffda3bd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    8.371402][  T153] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007fd90e51ee32
[    8.371648][  T153] RDX: 0000000000000078 RSI: 00007ffffda3be40 RDI: 0000000000000009
[    8.371894][  T153] RBP: 00007ffffda3bdc0 R08: 0000000000000000 R09: 0000000000000000
[    8.372152][  T153] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000009
[    8.372408][  T153] R13: 0000000000000045 R14: 00000000004120b0 R15: 0000000000000020
| [    8.374108][  T153] ---[ end trace 0000000000000000 ]---
| [    8.374937][  T153] ------------[ cut here ]------------
| [    8.375117][  T153] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bench-lookups_i/153
| [    8.375796][  T153] Tainted: [W]=WARN
[    8.375943][  T153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.376356][  T153] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.376591][  T153] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.377105][  T153] RSP: 0018:ffa0000000797220 EFLAGS: 00010286
[    8.377331][  T153] RAX: 00000000ffffffa6 RBX: ff11000009038740 RCX: 1ff40000000f2e0a
[    8.377583][  T153] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000090387f8
[    8.377827][  T153] RBP: ff1100000c421000 R08: 1fe2200001207100 R09: ff1100000c2a8b58
[    8.378069][  T153] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    8.378326][  T153] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c421ce1
[    8.378579][  T153] FS:  00007fd90e4a1bc0(0000) GS:ff1100008a9b0000(0000) knlGS:0000000000000000
[    8.378857][  T153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.379072][  T153] CR2: 0000000025794218 CR3: 000000000971d003 CR4: 0000000000771ef0
[    8.379330][  T153] PKRU: 55555554
[    8.379484][  T153] Call Trace:
[    8.379630][  T153]  <TASK>
[    8.379745][  T153]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.379926][  T153]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.380076][  T153]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.380267][  T153]  __dev_notify_flags (net/core/dev.c:9787)
[    8.380456][  T153]  ? netif_change_name (net/core/dev.c:1495)
[    8.380636][  T153]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.380817][  T153]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    8.380995][  T153]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.381189][  T153]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    8.381382][  T153]  netif_change_flags (net/core/dev.c:9820)
[    8.381564][  T153]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.381745][  T153]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.381925][  T153]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.382151][  T153]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.382333][  T153]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.382522][  T153]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.382702][  T153]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.382883][  T153]  ? __kernel_text_address (kernel/extable.c:79)
[    8.383066][  T153]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.383260][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.383446][  T153]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.383626][  T153]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.383808][  T153]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.383986][  T153]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.384176][  T153]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.384358][  T153]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.384544][  T153]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    8.384724][  T153]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.384904][  T153]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.385083][  T153]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.385278][  T153]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.385467][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.385650][  T153]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.385832][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.386010][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.386202][  T153]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.386390][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.386568][  T153]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.386751][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.386930][  T153]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.387109][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.387301][  T153]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.387489][  T153]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.387667][  T153]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.387849][  T153]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.388113][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.388308][  T153]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.388499][  T153]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.388677][  T153]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.388938][  T153]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.389118][  T153]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    8.389311][  T153]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    8.389503][  T153]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.389772][  T153]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.389948][  T153]  ? netlink_autobind.isra.0 (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:815 (discriminator 2))
[    8.390189][  T153]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[    8.390373][  T153]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.390650][  T153]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.390833][  T153]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    8.391013][  T153]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    8.391296][  T153]  ? fput_close_sync (fs/file_table.c:615)
[    8.391484][  T153]  ? alloc_file_clone (fs/file_table.c:477)
[    8.391665][  T153]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    8.391843][  T153]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.392170][  T153]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.392349][  T153]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.392536][  T153]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.392715][  T153]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.392978][  T153]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.393172][  T153]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.393408][  T153] RIP: 0033:0x7fd90e51ee32
[    8.393592][  T153] 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)
[    8.394210][  T153] RSP: 002b:00007ffffda3bda8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    8.394564][  T153] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007fd90e51ee32
[    8.394807][  T153] RDX: 0000000000000020 RSI: 00007ffffda3be20 RDI: 0000000000000009
[    8.395049][  T153] RBP: 00007ffffda3bdd0 R08: 0000000000000000 R09: 0000000000000000
[    8.395304][  T153] R10: 0000000000000000 R11: 0000000000000246 R12: 000000006b3457ea
[    8.395552][  T153] R13: 00007fd90e4c0cc3 R14: 0000000001fe000a R15: 0000000000000000
| [    8.397512][  T153] ---[ end trace 0000000000000000 ]---
| [    8.407904][  T153] ------------[ cut here ]------------
| [    8.408106][  T153] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bench-lookups_i/153
| [    8.408964][  T153] Tainted: [W]=WARN
[    8.409177][  T153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.409448][  T153] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.409723][  T153] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.410304][  T153] RSP: 0018:ffa0000000797220 EFLAGS: 00010286
[    8.410545][  T153] RAX: 00000000ffffffa6 RBX: ff11000009039a80 RCX: 1ff40000000f2e0a
[    8.410785][  T153] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009039b38
[    8.411026][  T153] RBP: ff11000009f19000 R08: 1fe2200001207368 R09: ff1100000c2a8b58
[    8.411281][  T153] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    8.411531][  T153] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009f19ce1
[    8.411777][  T153] FS:  00007fd90e4a1bc0(0000) GS:ff1100008a9b0000(0000) knlGS:0000000000000000
[    8.412055][  T153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.412277][  T153] CR2: 00007fd90dc9dcd4 CR3: 000000000971d003 CR4: 0000000000771ef0
[    8.412532][  T153] PKRU: 55555554
[    8.412677][  T153] Call Trace:
[    8.412822][  T153]  <TASK>
[    8.412936][  T153]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.413116][  T153]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.413277][  T153]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.413464][  T153]  __dev_notify_flags (net/core/dev.c:9787)
[    8.413645][  T153]  ? netif_change_name (net/core/dev.c:1495)
[    8.413826][  T153]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.414005][  T153]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    8.414207][  T153]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.414396][  T153]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    8.414577][  T153]  netif_change_flags (net/core/dev.c:9820)
[    8.414759][  T153]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.414943][  T153]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.415122][  T153]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.415357][  T153]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.415546][  T153]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.415724][  T153]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.415904][  T153]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.416083][  T153]  ? __kernel_text_address (kernel/extable.c:79)
[    8.416278][  T153]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.416469][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.416651][  T153]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.416832][  T153]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.417011][  T153]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.417202][  T153]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.417389][  T153]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.417572][  T153]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.417752][  T153]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    8.417931][  T153]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.418111][  T153]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.418305][  T153]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.418490][  T153]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.418671][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.418852][  T153]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.419036][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.419226][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.419410][  T153]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.419593][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.419770][  T153]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.419949][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.420141][  T153]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.420321][  T153]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.420512][  T153]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.420693][  T153]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.420872][  T153]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.421052][  T153]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.421244][  T153]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.421431][  T153]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.421615][  T153]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.421796][  T153]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.421978][  T153]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.422179][  T153]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    8.422359][  T153]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    8.422550][  T153]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.422731][  T153]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.422908][  T153]  ? netlink_autobind.isra.0 (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:815 (discriminator 2))
[    8.423089][  T153]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[    8.423281][  T153]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.423471][  T153]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.423655][  T153]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    8.423834][  T153]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    8.424020][  T153]  ? fput_close_sync (fs/file_table.c:615)
[    8.424210][  T153]  ? alloc_file_clone (fs/file_table.c:477)
[    8.424398][  T153]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    8.424582][  T153]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.424794][  T153]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.424972][  T153]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.425163][  T153]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.425343][  T153]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.425527][  T153]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.425707][  T153]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.425916][  T153] RIP: 0033:0x7fd90e51ee32
[    8.426103][  T153] 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)
[    8.426629][  T153] RSP: 002b:00007ffffda3bda8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    8.426875][  T153] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007fd90e51ee32
[    8.427119][  T153] RDX: 0000000000000020 RSI: 00007ffffda3be20 RDI: 0000000000000009
[    8.427396][  T153] RBP: 00007ffffda3bdd0 R08: 0000000000000000 R09: 0000000000000000
[    8.427639][  T153] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000ee28d2
[    8.427882][  T153] R13: 0000000000000000 R14: 000000000101000a R15: 00007fd90e4c0cc3
| [    8.429561][  T153] ---[ end trace 0000000000000000 ]---
| [    8.431065][   T38] ------------[ cut here ]------------
| [    8.431250][   T38] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/38
| [    8.431789][   T38] Tainted: [W]=WARN
[    8.431884][   T38] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.432038][   T38] Workqueue: events_unbound linkwatch_event
[    8.432247][   T38] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.432418][   T38] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.432865][   T38] RSP: 0018:ffa00000002af9e0 EFLAGS: 00010286
[    8.433021][   T38] RAX: 00000000ffffffa6 RBX: ff11000005e78ac0 RCX: 1ff4000000055f02
[    8.433358][   T38] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000005e78b78
[    8.433564][   T38] RBP: ff1100000c421000 R08: 1fe2200000bcf170 R09: ff11000001d92ea8
[    8.433750][   T38] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[    8.433935][   T38] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.434120][   T38] FS:  0000000000000000(0000) GS:ff1100008a8b0000(0000) knlGS:0000000000000000
[    8.434348][   T38] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.434508][   T38] CR2: 0000559d694fc0e8 CR3: 000000000971d002 CR4: 0000000000771ef0
[    8.434694][   T38] PKRU: 55555554
[    8.434788][   T38] Call Trace:
[    8.434918][   T38]  <TASK>
[    8.434983][   T38]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.435115][   T38]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.435247][   T38]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.435342][   T38]  netif_state_change (net/core/dev.c:1605)
[    8.435472][   T38]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[    8.435628][   T38]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    8.435751][   T38]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    8.435876][   T38]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.436001][   T38]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    8.436131][   T38]  ? __linkwatch_run_queue (./include/linux/list.h:561)
[    8.436257][   T38]  process_one_work (kernel/workqueue.c:3314)
[    8.436387][   T38]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.436511][   T38]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.436639][   T38]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.436766][   T38]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.436891][   T38]  kthread (kernel/kthread.c:436)
[    8.436986][   T38]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.437145][   T38]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.437269][   T38]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.437398][   T38]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.437553][   T38]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.437677][   T38]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.437800][   T38]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.438986][   T38] ---[ end trace 0000000000000000 ]---
| [    9.126621][   T39] ------------[ cut here ]------------
| [    9.126839][   T39] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/39
| [    9.127421][   T39] Tainted: [W]=WARN
[    9.127518][   T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.127679][   T39] Workqueue: events_unbound linkwatch_event
[    9.127844][   T39] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.128007][   T39] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.128466][   T39] RSP: 0018:ffa00000002bf9e0 EFLAGS: 00010286
[    9.128631][   T39] RAX: 00000000ffffffa6 RBX: ff1100000b3ca580 RCX: 1ff4000000057f02
[    9.128818][   T39] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b3ca638
[    9.129004][   T39] RBP: ff11000009f19000 R08: 1fe22000016794c8 R09: ff11000001d951a8
[    9.129218][   T39] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[    9.129411][   T39] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.129601][   T39] FS:  0000000000000000(0000) GS:ff1100008a8b0000(0000) knlGS:0000000000000000
[    9.129822][   T39] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.129981][   T39] CR2: 00007fd90e640ee3 CR3: 000000000971d002 CR4: 0000000000771ef0
[    9.130179][   T39] PKRU: 55555554
[    9.130274][   T39] Call Trace:
[    9.130369][   T39]  <TASK>
[    9.130440][   T39]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.130568][   T39]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.130696][   T39]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.130791][   T39]  netif_state_change (net/core/dev.c:1605)
[    9.130917][   T39]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[    9.131073][   T39]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    9.131203][   T39]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    9.131332][   T39]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.131465][   T39]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    9.131591][   T39]  ? __linkwatch_run_queue (./include/linux/list.h:561)
[    9.131719][   T39]  process_one_work (kernel/workqueue.c:3314)
[    9.131847][   T39]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.131971][   T39]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.132103][   T39]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.132236][   T39]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.132361][   T39]  kthread (kernel/kthread.c:436)
[    9.132463][   T39]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.132619][   T39]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.132744][   T39]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.132869][   T39]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.133029][   T39]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.133162][   T39]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.133287][   T39]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.134501][   T39] ---[ end trace 0000000000000000 ]---
| [   28.905373][   T12] ------------[ cut here ]------------
| [   28.905617][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   28.906152][   T12] Tainted: [W]=WARN
[   28.906243][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.906389][   T12] Workqueue: netns cleanup_net
[   28.906522][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.906676][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.907095][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.907251][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b3903c0 RCX: 1ff4000000018eed
[   28.907427][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b390478
[   28.907608][   T12] RBP: ff1100000c7e9000 R08: 1fe2200001672090 R09: ff11000001b0d1d0
[   28.907782][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   28.907962][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.908152][   T12] FS:  0000000000000000(0000) GS:ff1100008a930000(0000) knlGS:0000000000000000
[   28.908392][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.908548][   T12] CR2: 00007fd90e677900 CR3: 0000000022349004 CR4: 0000000000771ef0
[   28.908724][   T12] PKRU: 55555554
[   28.908814][   T12] Call Trace:
[   28.908903][   T12]  <TASK>
[   28.908966][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.909117][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.909317][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.909437][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.909562][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.909678][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.909796][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.909915][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.910032][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   28.910195][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.910315][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.910432][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.910553][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.910671][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.910787][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.910908][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.911028][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.911191][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.911310][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.911478][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.911595][   T12]  kthread (kernel/kthread.c:436)
[   28.911689][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.911842][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.911962][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.912085][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.912276][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.912443][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.912561][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.913770][   T12] ---[ end trace 0000000000000000 ]---
| [   28.915556][   T12] ------------[ cut here ]------------
| [   28.915707][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   28.916211][   T12] Tainted: [W]=WARN
[   28.916301][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.916455][   T12] Workqueue: netns cleanup_net
[   28.916580][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.916735][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.917152][   T12] RSP: 0018:ffa00000000c7938 EFLAGS: 00010286
[   28.917303][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b391700 RCX: 1ff4000000018eed
[   28.917516][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b3917b8
[   28.917694][   T12] RBP: ff1100000d559000 R08: 1fe22000016722f8 R09: ff11000001b0d1d0
[   28.917866][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   28.918084][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   28.918326][   T12] FS:  0000000000000000(0000) GS:ff1100008a930000(0000) knlGS:0000000000000000
[   28.918533][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.918679][   T12] CR2: 00007fd90e677900 CR3: 0000000022349004 CR4: 0000000000771ef0
[   28.918942][   T12] PKRU: 55555554
[   28.919032][   T12] Call Trace:
[   28.919120][   T12]  <TASK>
[   28.919226][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   28.919376][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.919523][   T12]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   28.919639][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   28.919755][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.919874][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   28.919992][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.920114][   T12]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   28.920280][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   28.920420][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.920642][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.920776][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.920893][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.921069][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.921235][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.921352][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.921503][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.921631][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.921750][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.921871][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.921989][   T12]  kthread (kernel/kthread.c:436)
[   28.922077][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.922265][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.922435][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.922564][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.922708][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.922827][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.922944][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.924111][   T12] ---[ end trace 0000000000000000 ]---
| [   28.936990][   T12] ------------[ cut here ]------------
| [   28.937153][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   28.937697][   T12] Tainted: [W]=WARN
[   28.937790][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.937945][   T12] Workqueue: netns cleanup_net
[   28.938074][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   28.938241][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   28.938687][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   28.938850][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b391a80 RCX: 1ff4000000018eaf
[   28.939040][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b391b38
[   28.939282][   T12] RBP: ff11000009f19000 R08: 1fe2200001672368 R09: ff11000001b0d1d0
[   28.939470][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   28.939654][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c421000
[   28.939838][   T12] FS:  0000000000000000(0000) GS:ff1100008a930000(0000) knlGS:0000000000000000
[   28.940052][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.940262][   T12] CR2: 00007fd90e677900 CR3: 0000000022349004 CR4: 0000000000771ef0
[   28.940454][   T12] PKRU: 55555554
[   28.940547][   T12] Call Trace:
[   28.940638][   T12]  <TASK>
[   28.940702][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   28.940829][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   28.940922][   T12]  netif_close_many (net/core/dev.c:1804)
[   28.941046][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.941216][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.941341][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.941469][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   28.941592][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   28.941746][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   28.941902][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.942026][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   28.942230][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.942351][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.942482][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   28.942608][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   28.942731][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   28.942858][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   28.942985][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   28.943108][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.943286][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   28.943412][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.943541][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   28.943665][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.943788][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.943914][   T12]  process_one_work (kernel/workqueue.c:3314)
[   28.944042][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   28.944213][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.944368][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   28.944543][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   28.944666][   T12]  kthread (kernel/kthread.c:436)
[   28.944758][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.944914][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.945037][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.945211][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   28.945365][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.945491][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   28.945614][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.946861][   T12] ---[ end trace 0000000000000000 ]---
| [   29.036238][   T12] ------------[ cut here ]------------
| [   29.036405][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   29.036950][   T12] Tainted: [W]=WARN
[   29.037042][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.037200][   T12] Workqueue: netns cleanup_net
[   29.037330][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.037495][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.037932][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   29.038088][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a4bde00 RCX: 1ff4000000018eaf
[   29.039237][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a4bdeb8
[   29.039427][   T12] RBP: ff1100000c421000 R08: 1fe2200001497bd8 R09: ff11000001b0d1d0
[   29.039615][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   29.039800][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   29.039984][   T12] FS:  0000000000000000(0000) GS:ff1100008a930000(0000) knlGS:0000000000000000
[   29.040301][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.040558][   T12] CR2: 00007fd90e677900 CR3: 0000000022349004 CR4: 0000000000771ef0
[   29.040741][   T12] PKRU: 55555554
[   29.040832][   T12] Call Trace:
[   29.040923][   T12]  <TASK>
[   29.040986][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.041109][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   29.041333][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.041427][   T12]  netif_close_many (net/core/dev.c:1804)
[   29.041555][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.041677][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.041799][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.041921][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   29.042043][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   29.042294][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   29.042454][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.042578][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.042730][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.042852][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.042979][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   29.043103][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   29.043516][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   29.043643][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   29.043767][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   29.043889][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.044013][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.044184][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.044305][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.044428][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.044559][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.044682][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.044807][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.044929][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.045054][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.045228][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.045398][   T12]  kthread (kernel/kthread.c:436)
[   29.045494][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.045650][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.045773][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.045896][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.046049][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.046221][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.046343][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.047560][   T12] ---[ end trace 0000000000000000 ]---
| [   29.070417][   T12] ------------[ cut here ]------------
| [   29.070562][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   29.071075][   T12] Tainted: [W]=WARN
[   29.071171][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.071319][   T12] Workqueue: netns cleanup_net
[   29.071449][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.071606][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.072035][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   29.072192][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ffa4c80 RCX: 1ff4000000018ed5
[   29.072372][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000ffa4d38
[   29.072555][   T12] RBP: ff11000009f19000 R08: 1fe2200001ff49a8 R09: ff11000001b0d1d0
[   29.072732][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   29.072910][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.073087][   T12] FS:  0000000000000000(0000) GS:ff1100008a8b0000(0000) knlGS:0000000000000000
[   29.073300][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.073460][   T12] CR2: 00007ff826235f98 CR3: 0000000022349006 CR4: 0000000000771ef0
[   29.073641][   T12] PKRU: 55555554
[   29.073734][   T12] Call Trace:
[   29.073823][   T12]  <TASK>
[   29.073885][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.074041][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.074197][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.074317][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.074445][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   29.074566][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   29.074690][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   29.074812][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   29.074932][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   29.075051][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.075180][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.075299][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.075418][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.075542][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.075662][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.075782][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.075904][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.076024][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.076151][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.076274][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.076394][   T12]  kthread (kernel/kthread.c:436)
[   29.076491][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.076640][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.076760][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.076880][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.077031][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.077156][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.077276][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.078412][   T12] ---[ end trace 0000000000000000 ]---
| [   29.079556][   T12] ------------[ cut here ]------------
| [   29.079684][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   29.080189][   T12] Tainted: [W]=WARN
[   29.080279][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.080429][   T12] Workqueue: netns cleanup_net
[   29.080580][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.080734][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.081165][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   29.081317][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ffa4200 RCX: 1ff4000000018ed5
[   29.081498][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000ffa42b8
[   29.081674][   T12] RBP: ff1100000c84c000 R08: 1fe2200001ff4858 R09: ff11000001b0d1d0
[   29.081851][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   29.082030][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.082214][   T12] FS:  0000000000000000(0000) GS:ff1100008a8b0000(0000) knlGS:0000000000000000
[   29.082421][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.082575][   T12] CR2: 00007ff826235f98 CR3: 0000000022349006 CR4: 0000000000771ef0
[   29.082753][   T12] PKRU: 55555554
[   29.082842][   T12] Call Trace:
[   29.082930][   T12]  <TASK>
[   29.082991][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.083151][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.083298][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.083418][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.083543][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   29.083666][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   29.083786][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   29.083907][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   29.084027][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   29.084151][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.084272][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.084391][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.084511][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.084632][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.084751][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.084872][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.084994][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.085112][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.085241][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.085363][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.085488][   T12]  kthread (kernel/kthread.c:436)
[   29.085578][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.085734][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.085857][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.085977][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.086125][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.086252][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.086372][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.087509][   T12] ---[ end trace 0000000000000000 ]---
| [   29.111482][   T12] ------------[ cut here ]------------
| [   29.111658][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   29.112301][   T12] Tainted: [W]=WARN
[   29.112450][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.112642][   T12] Workqueue: netns cleanup_net
[   29.112811][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.113013][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.113495][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   29.113690][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b848740 RCX: 1ff4000000018ed5
[   29.113914][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b8487f8
[   29.114146][   T12] RBP: ff1100000c421000 R08: 1fe2200001709100 R09: ff11000001b0d1d0
[   29.114366][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   29.114596][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.114822][   T12] FS:  0000000000000000(0000) GS:ff1100008a9b0000(0000) knlGS:0000000000000000
[   29.115072][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.115278][   T12] CR2: 000055bcd47382b8 CR3: 000000000ca56005 CR4: 0000000000771ef0
[   29.115510][   T12] PKRU: 55555554
[   29.115644][   T12] Call Trace:
[   29.115778][   T12]  <TASK>
[   29.115885][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.116085][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.116293][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.116465][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.116637][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   29.116804][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   29.116969][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   29.117148][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   29.117318][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   29.117485][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.117654][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.117821][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.117985][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.118168][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.118333][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.118513][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.118684][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.118852][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.119021][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.119203][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.119368][   T12]  kthread (kernel/kthread.c:436)
[   29.119511][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.119705][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.119873][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.120038][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.120245][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.120411][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.120583][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.122044][   T12] ---[ end trace 0000000000000000 ]---
| [   29.123184][   T12] ------------[ cut here ]------------
| [   29.123347][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   29.123950][   T12] Tainted: [W]=WARN
[   29.124083][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.124290][   T12] Workqueue: netns cleanup_net
[   29.124467][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.124668][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 18 e8 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 18 e8 f0 ff       	call   0xfffffffffff0e854
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 18 e8 f0 ff       	call   0xfffffffffff0e82a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.125144][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   29.125337][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b848e40 RCX: 1ff4000000018ed5
[   29.125568][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b848ef8
[   29.125790][   T12] RBP: ff1100000d524000 R08: 1fe22000017091e0 R09: ff11000001b0d1d0
[   29.126014][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   29.126249][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.126479][   T12] FS:  0000000000000000(0000) GS:ff1100008a9b0000(0000) knlGS:0000000000000000
[   29.126732][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.126928][   T12] CR2: 000055bcd47382b8 CR3: 000000000ca56005 CR4: 0000000000771ef0
[   29.127162][   T12] PKRU: 55555554
[   29.127297][   T12] Call Trace:
[   29.127431][   T12]  <TASK>
[   29.127548][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.127743][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.127936][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.128106][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.128289][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   29.128461][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   29.128629][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   29.128795][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   29.128964][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   29.129140][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.129311][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   29.129484][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.129649][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.129814][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.129980][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.130159][   T12]  process_one_work (kernel/workqueue.c:3314)
[   29.130329][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.130502][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.130676][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.130845][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.131010][   T12]  kthread (kernel/kthread.c:436)
[   29.131158][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.131353][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.131526][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.131692][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.131888][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.132054][   T12]  ? kthread_affine_node (kernel/kthread.c:378)


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