======================================
| 0
| xx__-> [    8.006750][  T154] ------------[ cut here ]------------
| [    8.007029][  T154] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: bench-lookups_i/154
| [    8.007743][  T154] Tainted: [W]=WARN
[    8.007845][  T154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.008012][  T154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.008181][  T154] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.008729][  T154] RSP: 0018:ffa0000000787ab0 EFLAGS: 00010286
[    8.008896][  T154] RAX: 00000000ffffffa6 RBX: ff1100000c173e00 RCX: 1ff40000000f0f1c
[    8.009147][  T154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c173eb8
[    8.009344][  T154] RBP: ff11000005c34000 R08: 1fe220000182e7d8 R09: ff1100000c2d5180
[    8.009602][  T154] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    8.009794][  T154] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005c34000
[    8.009988][  T154] FS:  00007f6b4892cbc0(0000) GS:ff11000094530000(0000) knlGS:0000000000000000
[    8.010213][  T154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.010444][  T154] CR2: 00007f6b4899e0a0 CR3: 000000000923a005 CR4: 0000000000771ef0
[    8.010644][  T154] PKRU: 55555554
[    8.010742][  T154] Call Trace:
[    8.010840][  T154]  <TASK>
[    8.010908][  T154]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.011039][  T154]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.011170][  T154]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.011273][  T154]  register_netdevice (net/core/dev.c:11488)
[    8.011469][  T154]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.011633][  T154]  register_netdev (net/core/dev.c:11552)
[    8.011761][  T154]  loopback_net_init (drivers/net/loopback.c:218)
[    8.011892][  T154]  ops_init (net/core/net_namespace.c:137)
[    8.011994][  T154]  setup_net (net/core/net_namespace.c:446)
[    8.012096][  T154]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.012226][  T154]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.012416][  T154]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.012552][  T154]  copy_net_ns (net/core/net_namespace.c:579)
[    8.012681][  T154]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.012813][  T154]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.012940][  T154]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.013068][  T154]  ksys_unshare (kernel/fork.c:3243)
[    8.013199][  T154]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.013335][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[    8.013525][  T154]  ? __ia32_sys_open (fs/open.c:1374)
[    8.013656][  T154]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.013784][  T154]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.013914][  T154]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.014041][  T154]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.014174][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.014308][  T154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.014528][  T154] RIP: 0033:0x7f6b48a26bcb
[    8.014665][  T154] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.015121][  T154] RSP: 002b:00007ffe7d40bf88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.015319][  T154] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f6b48a26bcb
[    8.015533][  T154] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    8.015724][  T154] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    8.015915][  T154] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000005
[    8.016106][  T154] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000080
| [    8.017413][  T154] ---[ end trace 0000000000000000 ]---
| [    8.022105][  T154] ------------[ cut here ]------------
| [    8.022264][  T154] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: bench-lookups_i/154
| [    8.022846][  T154] Tainted: [W]=WARN
[    8.022948][  T154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.023112][  T154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.023288][  T154] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.023763][  T154] RSP: 0018:ffa0000000787a98 EFLAGS: 00010286
[    8.023930][  T154] RAX: 00000000ffffffa6 RBX: ff11000008c39700 RCX: 1ff40000000f0f19
[    8.024121][  T154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008c397b8
[    8.024313][  T154] RBP: ff11000009f51000 R08: 1fe22000011872f8 R09: ff1100000c2d5180
[    8.024513][  T154] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    8.024700][  T154] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009f51000
[    8.024890][  T154] FS:  00007f6b4892cbc0(0000) GS:ff11000094530000(0000) knlGS:0000000000000000
[    8.025111][  T154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.025275][  T154] CR2: 00007f6b4899e0a0 CR3: 000000000923a005 CR4: 0000000000771ef0
[    8.025479][  T154] PKRU: 55555554
[    8.025574][  T154] Call Trace:
[    8.025669][  T154]  <TASK>
[    8.025734][  T154]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.025861][  T154]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.025988][  T154]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.026084][  T154]  register_netdevice (net/core/dev.c:11488)
[    8.026214][  T154]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.026449][  T154]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.026582][  T154]  register_netdev (net/core/dev.c:11552)
[    8.026712][  T154]  sit_init_net (net/ipv6/sit.c:1860)
[    8.026845][  T154]  ops_init (net/core/net_namespace.c:137)
[    8.026944][  T154]  setup_net (net/core/net_namespace.c:446)
[    8.027043][  T154]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.027174][  T154]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.027310][  T154]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.027505][  T154]  copy_net_ns (net/core/net_namespace.c:579)
[    8.027634][  T154]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.027764][  T154]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.027889][  T154]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.028017][  T154]  ksys_unshare (kernel/fork.c:3243)
[    8.028145][  T154]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.028276][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[    8.028460][  T154]  ? __ia32_sys_open (fs/open.c:1374)
[    8.028642][  T154]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.028771][  T154]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.028898][  T154]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.029026][  T154]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.029153][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.029283][  T154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.029507][  T154] RIP: 0033:0x7f6b48a26bcb
[    8.029641][  T154] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.030094][  T154] RSP: 002b:00007ffe7d40bf88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.030295][  T154] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f6b48a26bcb
[    8.030547][  T154] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    8.030743][  T154] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    8.030933][  T154] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000005
[    8.031123][  T154] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000080
| [    8.032520][  T154] ---[ end trace 0000000000000000 ]---
| [    8.053045][  T154] ------------[ cut here ]------------
| [    8.053269][  T154] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: bench-lookups_i/154
| [    8.053872][  T154] Tainted: [W]=WARN
[    8.053973][  T154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.054135][  T154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.054308][  T154] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.054781][  T154] RSP: 0018:ffa0000000787ab0 EFLAGS: 00010286
[    8.054945][  T154] RAX: 00000000ffffffa6 RBX: ff11000008c383c0 RCX: 1ff40000000f0f1c
[    8.055143][  T154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008c38478
[    8.055342][  T154] RBP: ff11000008269000 R08: 1fe2200001187090 R09: ff1100000c2d5180
[    8.055545][  T154] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    8.055737][  T154] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008269000
[    8.055929][  T154] FS:  00007f6b4892cbc0(0000) GS:ff11000094530000(0000) knlGS:0000000000000000
[    8.056155][  T154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.056321][  T154] CR2: 00007f6b4899e0a0 CR3: 000000000923a005 CR4: 0000000000771ef0
[    8.056530][  T154] PKRU: 55555554
[    8.056627][  T154] Call Trace:
[    8.056722][  T154]  <TASK>
[    8.056789][  T154]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.056918][  T154]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.057048][  T154]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.057147][  T154]  register_netdevice (net/core/dev.c:11488)
[    8.057282][  T154]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.057458][  T154]  register_netdev (net/core/dev.c:11552)
[    8.057588][  T154]  loopback_net_init (drivers/net/loopback.c:218)
[    8.057717][  T154]  ops_init (net/core/net_namespace.c:137)
[    8.057816][  T154]  setup_net (net/core/net_namespace.c:446)
[    8.057914][  T154]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.058041][  T154]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.058173][  T154]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.058309][  T154]  copy_net_ns (net/core/net_namespace.c:579)
[    8.058448][  T154]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.058579][  T154]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.058707][  T154]  ksys_unshare (kernel/fork.c:3243)
[    8.058837][  T154]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.058966][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[    8.059095][  T154]  ? __ia32_sys_open (fs/open.c:1374)
[    8.059226][  T154]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.059364][  T154]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.059498][  T154]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.059630][  T154]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.059762][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.059889][  T154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.060047][  T154] RIP: 0033:0x7f6b48a26bcb
[    8.060180][  T154] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.060704][  T154] RSP: 002b:00007ffe7d40bf88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.060897][  T154] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f6b48a26bcb
[    8.061088][  T154] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    8.061285][  T154] RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
[    8.061534][  T154] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000005
[    8.061725][  T154] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000080
| [    8.063174][  T154] ---[ end trace 0000000000000000 ]---
| [    8.067731][  T154] ------------[ cut here ]------------
| [    8.067877][  T154] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: bench-lookups_i/154
| [    8.068594][  T154] Tainted: [W]=WARN
[    8.068693][  T154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.068855][  T154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.069024][  T154] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.069561][  T154] RSP: 0018:ffa0000000787a98 EFLAGS: 00010286
[    8.069724][  T154] RAX: 00000000ffffffa6 RBX: ff11000009624040 RCX: 1ff40000000f0f19
[    8.069970][  T154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000096240f8
[    8.070175][  T154] RBP: ff11000008921000 R08: 1fe22000012c4820 R09: ff1100000c2d5180
[    8.070431][  T154] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    8.070624][  T154] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008921000
[    8.070817][  T154] FS:  00007f6b4892cbc0(0000) GS:ff11000094530000(0000) knlGS:0000000000000000
[    8.071047][  T154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.071209][  T154] CR2: 00007f6b4899e0a0 CR3: 000000000923a005 CR4: 0000000000771ef0
[    8.071468][  T154] PKRU: 55555554
[    8.071565][  T154] Call Trace:
[    8.071660][  T154]  <TASK>
[    8.071727][  T154]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.071854][  T154]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.071988][  T154]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.072085][  T154]  register_netdevice (net/core/dev.c:11488)
[    8.072214][  T154]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.072437][  T154]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.072569][  T154]  register_netdev (net/core/dev.c:11552)
[    8.072698][  T154]  sit_init_net (net/ipv6/sit.c:1860)
[    8.072827][  T154]  ops_init (net/core/net_namespace.c:137)
[    8.072932][  T154]  setup_net (net/core/net_namespace.c:446)
[    8.073029][  T154]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.073159][  T154]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.073293][  T154]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.073484][  T154]  copy_net_ns (net/core/net_namespace.c:579)
[    8.073615][  T154]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.073745][  T154]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.073881][  T154]  ksys_unshare (kernel/fork.c:3243)
[    8.074010][  T154]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.074137][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[    8.074267][  T154]  ? __ia32_sys_open (fs/open.c:1374)
[    8.074460][  T154]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.074589][  T154]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.074717][  T154]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.074844][  T154]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.074977][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.075104][  T154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.075264][  T154] RIP: 0033:0x7f6b48a26bcb
[    8.075462][  T154] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.075924][  T154] RSP: 002b:00007ffe7d40bf88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.076118][  T154] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f6b48a26bcb
[    8.076314][  T154] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    8.076566][  T154] RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
[    8.076757][  T154] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000005
[    8.076953][  T154] R13: 0000000000416330 R14: 000000000000001f R15: 0000000000000080
| [    8.078309][  T154] ---[ end trace 0000000000000000 ]---
| [    8.084612][  T154] ------------[ cut here ]------------
| [    8.084790][  T154] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bench-lookups_i/154
| [    8.085375][  T154] Tainted: [W]=WARN
[    8.085482][  T154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.085647][  T154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.085818][  T154] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.086303][  T154] RSP: 0018:ffa0000000787020 EFLAGS: 00010286
[    8.086482][  T154] RAX: 00000000ffffffa6 RBX: ff1100000b980580 RCX: 1ff40000000f0dca
[    8.086729][  T154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b980638
[    8.086933][  T154] RBP: ff11000005179000 R08: 1fe22000017300c8 R09: ff1100000c2d5180
[    8.087129][  T154] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.087331][  T154] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008a44e8c
[    8.087575][  T154] FS:  00007f6b4892cbc0(0000) GS:ff11000094630000(0000) knlGS:0000000000000000
[    8.087814][  T154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.087979][  T154] CR2: 0000556006e8c400 CR3: 000000000923a001 CR4: 0000000000771ef0
[    8.088177][  T154] PKRU: 55555554
[    8.088280][  T154] Call Trace:
[    8.088386][  T154]  <TASK>
[    8.088460][  T154]  ? lock_acquire.part.0 (./arch/x86/include/asm/irqflags.h:158 (discriminator 1) kernel/locking/lockdep.c:5871 (discriminator 1))
[    8.088593][  T154]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.088733][  T154]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.088833][  T154]  __dev_notify_flags (net/core/dev.c:9787)
[    8.088965][  T154]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[    8.089097][  T154]  ? netif_change_name (net/core/dev.c:1495)
[    8.089229][  T154]  ? __dev_change_flags (net/core/dev.c:9739)
[    8.089371][  T154]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    8.089509][  T154]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[    8.089650][  T154]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    8.089784][  T154]  veth_newlink (drivers/net/veth.c:1871)
[    8.089917][  T154]  ? veth_poll_controller (drivers/net/veth.c:1470)
[    8.090050][  T154]  ? kasan_save_stack (mm/kasan/common.c:57)
[    8.090183][  T154]  ? kasan_save_track (mm/kasan/common.c:78)
[    8.090317][  T154]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    8.090537][  T154]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    8.090669][  T154]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    8.090801][  T154]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    8.090934][  T154]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.091069][  T154]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[    8.091202][  T154]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    8.091340][  T154]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    8.091523][  T154]  ? __dev_get_by_name (net/core/dev.c:883)
[    8.091655][  T154]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    8.091790][  T154]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    8.091925][  T154]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.092058][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.092190][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.092332][  T154]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.092477][  T154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.092610][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.092742][  T154]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.092875][  T154]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.093006][  T154]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.093138][  T154]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.093283][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.093420][  T154]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.093562][  T154]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.093694][  T154]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.093825][  T154]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.093959][  T154]  ? 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))
[    8.094099][  T154]  ? 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))
[    8.094233][  T154]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.094374][  T154]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.094511][  T154]  ? 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))
[    8.094643][  T154]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[    8.094775][  T154]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.094907][  T154]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.095045][  T154]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[    8.095211][  T154]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[    8.095383][  T154]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.095521][  T154]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    8.095655][  T154]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    8.095789][  T154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.095932][  T154]  ? update_socket_protocol+0x10/0x10
[    8.096063][  T154]  ? __ia32_sys_open (fs/open.c:1374)
[    8.096195][  T154]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    8.096331][  T154]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.096505][  T154]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.096637][  T154]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.096775][  T154]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.096906][  T154]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.097038][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.097171][  T154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.097342][  T154] RIP: 0033:0x7f6b4899e08e
[    8.097491][  T154] 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
[    8.097965][  T154] RSP: 002b:00007ffe7d40b680 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    8.098166][  T154] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f6b4899e08e
[    8.098372][  T154] RDX: 0000000000000078 RSI: 00007ffe7d40b710 RDI: 0000000000000008
[    8.098615][  T154] RBP: 00007ffe7d40b690 R08: 0000000000000000 R09: 0000000000000000
[    8.098811][  T154] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
[    8.099008][  T154] R13: 0000000000000045 R14: 0000000000411f2f R15: 0000000000000080
| [    8.100346][  T154] ---[ end trace 0000000000000000 ]---
| [    8.113387][  T154] ------------[ cut here ]------------
| [    8.113536][  T154] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bench-lookups_i/154
| [    8.114091][  T154] Tainted: [W]=WARN
[    8.114189][  T154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.114356][  T154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.114535][  T154] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.115004][  T154] RSP: 0018:ffa00000007873a0 EFLAGS: 00010286
[    8.115169][  T154] RAX: 00000000ffffffa6 RBX: ff1100000b01b1c0 RCX: 1ff40000000f0e3a
[    8.115373][  T154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b01b278
[    8.115578][  T154] RBP: ff11000009049000 R08: 1fe2200001603650 R09: ff1100000c2d5180
[    8.115772][  T154] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.115967][  T154] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[    8.116162][  T154] FS:  00007f6b4892cbc0(0000) GS:ff11000094630000(0000) knlGS:0000000000000000
[    8.116405][  T154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.116576][  T154] CR2: 0000556006e8c400 CR3: 000000000923a001 CR4: 0000000000771ef0
[    8.116774][  T154] PKRU: 55555554
[    8.116872][  T154] Call Trace:
[    8.116969][  T154]  <TASK>
[    8.117036][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.117167][  T154]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.117309][  T154]  ? 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)
[    8.117453][  T154]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.117552][  T154]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.117683][  T154]  __dev_notify_flags (net/core/dev.c:9787)
[    8.117816][  T154]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.117948][  T154]  ? netif_change_name (net/core/dev.c:1495)
[    8.118078][  T154]  ? __dev_change_flags (net/core/dev.c:9739)
[    8.118214][  T154]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    8.118348][  T154]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    8.118490][  T154]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.118622][  T154]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    8.118753][  T154]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    8.118885][  T154]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    8.119016][  T154]  ? __dev_get_by_name (net/core/dev.c:883)
[    8.119151][  T154]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    8.119288][  T154]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    8.119433][  T154]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.119567][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.119698][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.119830][  T154]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.119964][  T154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.120095][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.120228][  T154]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.120369][  T154]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.120503][  T154]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.120634][  T154]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.120767][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.120898][  T154]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.121030][  T154]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.121161][  T154]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.121301][  T154]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.121442][  T154]  ? 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))
[    8.121574][  T154]  ? 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))
[    8.121706][  T154]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.121837][  T154]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.121966][  T154]  ? 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))
[    8.122098][  T154]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[    8.122232][  T154]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.122373][  T154]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.122510][  T154]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[    8.122673][  T154]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[    8.122833][  T154]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.122966][  T154]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    8.123097][  T154]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    8.123237][  T154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.123379][  T154]  ? update_socket_protocol+0x10/0x10
[    8.123516][  T154]  ? __ia32_sys_open (fs/open.c:1374)
[    8.123647][  T154]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    8.123778][  T154]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.123940][  T154]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.124073][  T154]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.124203][  T154]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.124337][  T154]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.124474][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.124605][  T154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.124767][  T154] RIP: 0033:0x7f6b4899e08e
[    8.124903][  T154] 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
[    8.125389][  T154] RSP: 002b:00007ffe7d40b680 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    8.125591][  T154] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f6b4899e08e
[    8.125785][  T154] RDX: 0000000000000078 RSI: 00007ffe7d40b710 RDI: 0000000000000008
[    8.125982][  T154] RBP: 00007ffe7d40b690 R08: 0000000000000000 R09: 0000000000000000
[    8.126177][  T154] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
[    8.126389][  T154] R13: 0000000000000045 R14: 0000000000411f2f R15: 0000000000000080
| [    8.127730][  T154] ---[ end trace 0000000000000000 ]---
| [    8.130999][   T69] ------------[ cut here ]------------
| [    8.131168][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/69
| [    8.131775][   T69] Tainted: [W]=WARN
[    8.131870][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.132036][   T69] Workqueue: netns cleanup_net
[    8.132168][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.132380][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.132835][   T69] RSP: 0018:ffa00000004a7938 EFLAGS: 00010286
[    8.132993][   T69] RAX: 00000000ffffffa6 RBX: ff1100000b01a900 RCX: 1ff4000000094eed
[    8.133178][   T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b01a9b8
[    8.133378][   T69] RBP: ff11000009f51000 R08: 1fe2200001603538 R09: ff110000089dd1d0
[    8.133584][   T69] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.133773][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.133967][   T69] FS:  0000000000000000(0000) GS:ff11000094630000(0000) knlGS:0000000000000000
[    8.134184][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.134345][   T69] CR2: 000000002d6fe018 CR3: 000000000923a001 CR4: 0000000000771ef0
[    8.134532][   T69] PKRU: 55555554
[    8.134621][   T69] Call Trace:
[    8.134709][   T69]  <TASK>
[    8.134770][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    8.134925][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    8.135073][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[    8.135197][   T69]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    8.135327][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    8.135457][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.135581][   T69]  cleanup_net (net/core/net_namespace.c:702)
[    8.135700][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[    8.135817][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    8.135938][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.136055][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.136179][   T69]  process_one_work (kernel/workqueue.c:3314)
[    8.136305][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.136504][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.136627][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.136807][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.136924][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    8.137044][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.137163][   T69]  kthread (kernel/kthread.c:436)
[    8.137259][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.137489][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.137610][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.137728][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.137877][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.137999][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.138122][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.139306][   T69] ---[ end trace 0000000000000000 ]---
| [    8.154161][  T154] ------------[ cut here ]------------
| [    8.154312][  T154] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bench-lookups_i/154
| [    8.154883][  T154] Tainted: [W]=WARN
[    8.154980][  T154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.155142][  T154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.155315][  T154] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.155792][  T154] RSP: 0018:ffa0000000787ab0 EFLAGS: 00010286
[    8.155955][  T154] RAX: 00000000ffffffa6 RBX: ff1100000b96c040 RCX: 1ff40000000f0f1c
[    8.156149][  T154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b96c0f8
[    8.156349][  T154] RBP: ff110000051f1000 R08: 1fe220000172d820 R09: ff1100000c2d5180
[    8.156553][  T154] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.156745][  T154] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000051f1000
[    8.156938][  T154] FS:  00007f6b4892cbc0(0000) GS:ff11000094630000(0000) knlGS:0000000000000000
[    8.157170][  T154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.157338][  T154] CR2: 000000002d6fe018 CR3: 000000000923a001 CR4: 0000000000771ef0
[    8.157539][  T154] PKRU: 55555554
[    8.157636][  T154] Call Trace:
[    8.157734][  T154]  <TASK>
[    8.157802][  T154]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.157932][  T154]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.158066][  T154]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.158165][  T154]  register_netdevice (net/core/dev.c:11488)
[    8.158302][  T154]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.158475][  T154]  register_netdev (net/core/dev.c:11552)
[    8.158605][  T154]  loopback_net_init (drivers/net/loopback.c:218)
[    8.158736][  T154]  ops_init (net/core/net_namespace.c:137)
[    8.158835][  T154]  setup_net (net/core/net_namespace.c:446)
[    8.158932][  T154]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.159066][  T154]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.159196][  T154]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.159334][  T154]  copy_net_ns (net/core/net_namespace.c:579)
[    8.159474][  T154]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.159606][  T154]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.159737][  T154]  ksys_unshare (kernel/fork.c:3243)
[    8.159870][  T154]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.159998][  T154]  ? ksys_write (fs/read_write.c:740)
[    8.160130][  T154]  ? __ia32_sys_open (fs/open.c:1374)
[    8.160259][  T154]  ? __ia32_sys_read (fs/read_write.c:724)
[    8.160402][  T154]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.160535][  T154]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.160666][  T154]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.160797][  T154]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.160931][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.161059][  T154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.161220][  T154] RIP: 0033:0x7f6b48a26bcb
[    8.161364][  T154] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.161825][  T154] RSP: 002b:00007ffe7d40bfe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.162023][  T154] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f6b48a26bcb
[    8.162215][  T154] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    8.162414][  T154] RBP: 000000006a10dad5 R08: 0000000000000000 R09: 0000000000000000
[    8.162609][  T154] R10: 0000000000000000 R11: 0000000000000206 R12: 00005402b80d0120
[    8.162805][  T154] R13: 0100000000000000 R14: 000000000000001f R15: 0000000000000080
| [    8.164110][  T154] ---[ end trace 0000000000000000 ]---
| [    8.164802][   T69] ------------[ cut here ]------------
| [    8.164939][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/69
| [    8.165473][   T69] Tainted: [W]=WARN
[    8.165564][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.165712][   T69] Workqueue: netns cleanup_net
[    8.165838][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.165992][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.166439][   T69] RSP: 0018:ffa00000004a7878 EFLAGS: 00010286
[    8.166594][   T69] RAX: 00000000ffffffa6 RBX: ff1100000b96de00 RCX: 1ff4000000094ed5
[    8.166772][   T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b96deb8
[    8.166947][   T69] RBP: ff11000009049000 R08: 1fe220000172dbd8 R09: ff110000089dd1d0
[    8.167125][   T69] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.167305][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.167493][   T69] FS:  0000000000000000(0000) GS:ff110000944b0000(0000) knlGS:0000000000000000
[    8.167701][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.167848][   T69] CR2: 00007f9d8c8eeab0 CR3: 000000000d52f005 CR4: 0000000000771ef0
[    8.168029][   T69] PKRU: 55555554
[    8.168118][   T69] Call Trace:
[    8.168205][   T69]  <TASK>
[    8.168271][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    8.168440][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    8.168588][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[    8.168711][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    8.168828][   T69]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[    8.168981][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    8.169101][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[    8.169222][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[    8.169347][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    8.169479][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    8.169597][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.169716][   T69]  cleanup_net (net/core/net_namespace.c:702)
[    8.169835][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[    8.169952][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    8.170073][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.170206][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.170332][   T69]  process_one_work (kernel/workqueue.c:3314)
[    8.170465][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.170585][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.170712][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.170831][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.170950][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    8.171072][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.171189][   T69]  kthread (kernel/kthread.c:436)
[    8.171282][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.171448][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.171568][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.171687][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.171837][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.171959][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.172078][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.173226][   T69] ---[ end trace 0000000000000000 ]---
| [    8.174716][   T69] ------------[ cut here ]------------
| [    8.174845][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/69
| [    8.175348][   T69] Tainted: [W]=WARN
[    8.175450][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.175603][   T69] Workqueue: netns cleanup_net
[    8.175728][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.175883][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.176311][   T69] RSP: 0018:ffa00000004a7878 EFLAGS: 00010286
[    8.176472][   T69] RAX: 00000000ffffffa6 RBX: ff1100000b96dc40 RCX: 1ff4000000094ed5
[    8.176650][   T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b96dcf8
[    8.176827][   T69] RBP: ff11000005179000 R08: 1fe220000172dba0 R09: ff110000089dd1d0
[    8.177004][   T69] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.177181][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.177377][   T69] FS:  0000000000000000(0000) GS:ff110000944b0000(0000) knlGS:0000000000000000
[    8.177592][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.177740][   T69] CR2: 00007f9d8c8eeab0 CR3: 000000000d52f005 CR4: 0000000000771ef0
[    8.177917][   T69] PKRU: 55555554
[    8.178006][   T69] Call Trace:
[    8.178096][   T69]  <TASK>
[    8.178158][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    8.178312][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    8.178469][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[    8.178590][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    8.178709][   T69]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[    8.178860][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    8.178981][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[    8.179103][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[    8.179223][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    8.179347][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    8.179477][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.179597][   T69]  cleanup_net (net/core/net_namespace.c:702)
[    8.179716][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[    8.179917][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    8.180039][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.180158][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.180282][   T69]  process_one_work (kernel/workqueue.c:3314)
[    8.180408][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.180534][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.180657][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.180780][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.180977][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    8.181097][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.181216][   T69]  kthread (kernel/kthread.c:436)
[    8.181311][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.181542][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.181663][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.181783][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.181936][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.182128][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.182247][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.183549][   T69] ---[ end trace 0000000000000000 ]---
| [    8.185058][   T69] ------------[ cut here ]------------
| [    8.185180][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/69
| [    8.185855][   T69] Tainted: [W]=WARN
[    8.185946][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.186095][   T69] Workqueue: netns cleanup_net
[    8.186218][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.186465][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.186887][   T69] RSP: 0018:ffa00000004a7878 EFLAGS: 00010286
[    8.187114][   T69] RAX: 00000000ffffffa6 RBX: ff1100000550d8c0 RCX: 1ff4000000094ed5
[    8.187295][   T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000550d978
[    8.188097][   T69] RBP: ff11000005c34000 R08: 1fe2200000aa1b30 R09: ff110000089dd1d0
[    8.188280][   T69] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.188511][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.188735][   T69] FS:  0000000000000000(0000) GS:ff110000944b0000(0000) knlGS:0000000000000000
[    8.188943][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.189091][   T69] CR2: 00007f9d8c8eeab0 CR3: 000000000d52f005 CR4: 0000000000771ef0
[    8.189272][   T69] PKRU: 55555554
[    8.189410][   T69] Call Trace:
[    8.189505][   T69]  <TASK>
[    8.189566][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    8.189717][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    8.189869][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[    8.189989][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    8.190107][   T69]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[    8.190260][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    8.190439][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[    8.190560][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[    8.190680][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    8.190801][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    8.190918][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.191043][   T69]  cleanup_net (net/core/net_namespace.c:702)
[    8.191163][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[    8.191284][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    8.191463][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.191583][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.191703][   T69]  process_one_work (kernel/workqueue.c:3314)
[    8.191824][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.191943][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.192066][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.192189][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.192311][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    8.192484][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.192604][   T69]  kthread (kernel/kthread.c:436)
[    8.192694][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.192844][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.192963][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.193082][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.193233][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.193406][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.193532][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.194727][   T69] ---[ end trace 0000000000000000 ]---
| [    8.198347][  T154] ------------[ cut here ]------------
| [    8.198507][  T154] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bench-lookups_i/154
| [    8.199060][  T154] Tainted: [W]=WARN
[    8.199157][  T154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.199330][  T154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.199508][  T154] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.199966][  T154] RSP: 0018:ffa0000000787a98 EFLAGS: 00010286
[    8.200130][  T154] RAX: 00000000ffffffa6 RBX: ff1100000550de00 RCX: 1ff40000000f0f19
[    8.200331][  T154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000550deb8
[    8.200534][  T154] RBP: ff1100000c5d9000 R08: 1fe2200000aa1bd8 R09: ff1100000c2d5180
[    8.200726][  T154] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.200918][  T154] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c5d9000
[    8.201116][  T154] FS:  00007f6b4892cbc0(0000) GS:ff11000094630000(0000) knlGS:0000000000000000
[    8.201346][  T154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.201519][  T154] CR2: 000000002d6fe018 CR3: 000000000923a001 CR4: 0000000000771ef0
[    8.201714][  T154] PKRU: 55555554
[    8.201810][  T154] Call Trace:
[    8.201906][  T154]  <TASK>
[    8.201977][  T154]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.202108][  T154]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.202238][  T154]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.202340][  T154]  register_netdevice (net/core/dev.c:11488)
[    8.202482][  T154]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.202644][  T154]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.202775][  T154]  register_netdev (net/core/dev.c:11552)
[    8.202909][  T154]  sit_init_net (net/ipv6/sit.c:1860)
[    8.203041][  T154]  ops_init (net/core/net_namespace.c:137)
[    8.203139][  T154]  setup_net (net/core/net_namespace.c:446)
[    8.203237][  T154]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.203374][  T154]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.203509][  T154]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.203640][  T154]  copy_net_ns (net/core/net_namespace.c:579)
[    8.203786][  T154]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.203918][  T154]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.204048][  T154]  ksys_unshare (kernel/fork.c:3243)
[    8.204177][  T154]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.204311][  T154]  ? ksys_write (fs/read_write.c:740)
[    8.204453][  T154]  ? __ia32_sys_open (fs/open.c:1374)
[    8.204582][  T154]  ? __ia32_sys_read (fs/read_write.c:724)
[    8.204716][  T154]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.204844][  T154]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.204974][  T154]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.205103][  T154]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.205232][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.205372][  T154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.205538][  T154] RIP: 0033:0x7f6b48a26bcb
[    8.205671][  T154] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.206136][  T154] RSP: 002b:00007ffe7d40bfe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.206336][  T154] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f6b48a26bcb
[    8.206537][  T154] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    8.206732][  T154] RBP: 000000006a10dad5 R08: 0000000000000000 R09: 0000000000000000
[    8.206924][  T154] R10: 0000000000000000 R11: 0000000000000206 R12: 00005402b80d0120
[    8.207117][  T154] R13: 0100000000000000 R14: 000000000000001f R15: 0000000000000080
| [    8.208428][  T154] ---[ end trace 0000000000000000 ]---
| [    8.222129][  T154] ------------[ cut here ]------------
| [    8.222271][  T154] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bench-lookups_i/154
| [    8.222834][  T154] Tainted: [W]=WARN
[    8.222938][  T154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.223100][  T154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.223268][  T154] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.223749][  T154] RSP: 0018:ffa0000000787ab0 EFLAGS: 00010286
[    8.223912][  T154] RAX: 00000000ffffffa6 RBX: ff11000008b618c0 RCX: 1ff40000000f0f1c
[    8.224104][  T154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008b61978
[    8.224301][  T154] RBP: ff1100000c6cc000 R08: 1fe220000116c330 R09: ff1100000c2d5180
[    8.224503][  T154] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.224699][  T154] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c6cc000
[    8.224891][  T154] FS:  00007f6b4892cbc0(0000) GS:ff11000094630000(0000) knlGS:0000000000000000
[    8.225117][  T154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.225282][  T154] CR2: 000000002d6fe018 CR3: 000000000923a001 CR4: 0000000000771ef0
[    8.225490][  T154] PKRU: 55555554
[    8.225586][  T154] Call Trace:
[    8.225681][  T154]  <TASK>
[    8.225747][  T154]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.225876][  T154]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.226006][  T154]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.226104][  T154]  register_netdevice (net/core/dev.c:11488)
[    8.226234][  T154]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.226453][  T154]  register_netdev (net/core/dev.c:11552)
[    8.226583][  T154]  loopback_net_init (drivers/net/loopback.c:218)
[    8.226712][  T154]  ops_init (net/core/net_namespace.c:137)
[    8.226811][  T154]  setup_net (net/core/net_namespace.c:446)
[    8.226908][  T154]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.227035][  T154]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.227164][  T154]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.227304][  T154]  copy_net_ns (net/core/net_namespace.c:579)
[    8.227442][  T154]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.227574][  T154]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.227704][  T154]  ksys_unshare (kernel/fork.c:3243)
[    8.227834][  T154]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.227964][  T154]  ? ksys_write (fs/read_write.c:740)
[    8.228096][  T154]  ? __ia32_sys_open (fs/open.c:1374)
[    8.228225][  T154]  ? __ia32_sys_read (fs/read_write.c:724)
[    8.228369][  T154]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.228501][  T154]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.228630][  T154]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.228758][  T154]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.228887][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.229016][  T154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.229176][  T154] RIP: 0033:0x7f6b48a26bcb
[    8.229314][  T154] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.229790][  T154] RSP: 002b:00007ffe7d40bfe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.229985][  T154] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f6b48a26bcb
[    8.230182][  T154] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    8.230382][  T154] RBP: 000000006a10dad5 R08: 0000000000000000 R09: 0000000000000000
[    8.230579][  T154] R10: 0000000000000000 R11: 0000000000000206 R12: 00005402b80d0120
[    8.230770][  T154] R13: 0100000000000000 R14: 000000000000001f R15: 0000000000000080
| [    8.232075][  T154] ---[ end trace 0000000000000000 ]---
| [    8.232810][   T69] ------------[ cut here ]------------
| [    8.232936][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/69
| [    8.233460][   T69] Tainted: [W]=WARN
[    8.233549][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.233696][   T69] Workqueue: netns cleanup_net
[    8.233818][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.233971][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.234404][   T69] RSP: 0018:ffa00000004a7938 EFLAGS: 00010286
[    8.234557][   T69] RAX: 00000000ffffffa6 RBX: ff11000008b603c0 RCX: 1ff4000000094eed
[    8.234740][   T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008b60478
[    8.234919][   T69] RBP: ff11000008921000 R08: 1fe220000116c090 R09: ff110000089dd1d0
[    8.235094][   T69] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.235279][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.235467][   T69] FS:  0000000000000000(0000) GS:ff110000944b0000(0000) knlGS:0000000000000000
[    8.235676][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.235823][   T69] CR2: 00007f9d8c8eeab0 CR3: 000000000d52f005 CR4: 0000000000771ef0
[    8.236000][   T69] PKRU: 55555554
[    8.236091][   T69] Call Trace:
[    8.236179][   T69]  <TASK>
[    8.236241][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    8.236408][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    8.236559][   T69]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[    8.236678][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[    8.236801][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    8.236917][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[    8.237037][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[    8.237156][   T69]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    8.237280][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    8.237402][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.237525][   T69]  cleanup_net (net/core/net_namespace.c:702)
[    8.237642][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[    8.237763][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    8.237882][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.238000][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.238122][   T69]  process_one_work (kernel/workqueue.c:3314)
[    8.238242][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.238370][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.238500][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.238619][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.238735][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    8.238854][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.238971][   T69]  kthread (kernel/kthread.c:436)
[    8.239060][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.239207][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.239329][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.239459][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.239607][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.239724][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.239843][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.240987][   T69] ---[ end trace 0000000000000000 ]---
| [    8.244287][  T154] ------------[ cut here ]------------
| [    8.244444][  T154] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bench-lookups_i/154
| [    8.245002][  T154] Tainted: [W]=WARN
[    8.245099][  T154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.245260][  T154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.245442][  T154] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.245900][  T154] RSP: 0018:ffa0000000787a98 EFLAGS: 00010286
[    8.246063][  T154] RAX: 00000000ffffffa6 RBX: ff11000002765380 RCX: 1ff40000000f0f19
[    8.246256][  T154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000002765438
[    8.246466][  T154] RBP: ff1100000c414000 R08: 1fe22000004eca88 R09: ff1100000c2d5180
[    8.246662][  T154] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.246852][  T154] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c414000
[    8.247045][  T154] FS:  00007f6b4892cbc0(0000) GS:ff11000094630000(0000) knlGS:0000000000000000
[    8.247274][  T154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.247446][  T154] CR2: 000000002d6fe018 CR3: 000000000923a001 CR4: 0000000000771ef0
[    8.247639][  T154] PKRU: 55555554
[    8.247737][  T154] Call Trace:
[    8.247834][  T154]  <TASK>
[    8.247900][  T154]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.248028][  T154]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.248157][  T154]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.248255][  T154]  register_netdevice (net/core/dev.c:11488)
[    8.248456][  T154]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.248619][  T154]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.248749][  T154]  register_netdev (net/core/dev.c:11552)
[    8.248931][  T154]  sit_init_net (net/ipv6/sit.c:1860)
[    8.249061][  T154]  ops_init (net/core/net_namespace.c:137)
[    8.249161][  T154]  setup_net (net/core/net_namespace.c:446)
[    8.249259][  T154]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.249453][  T154]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.249583][  T154]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.249713][  T154]  copy_net_ns (net/core/net_namespace.c:579)
[    8.249841][  T154]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.249972][  T154]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.250110][  T154]  ksys_unshare (kernel/fork.c:3243)
[    8.250239][  T154]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.250430][  T154]  ? ksys_write (fs/read_write.c:740)
[    8.250559][  T154]  ? __ia32_sys_open (fs/open.c:1374)
[    8.250686][  T154]  ? __ia32_sys_read (fs/read_write.c:724)
[    8.250815][  T154]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.250943][  T154]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.251072][  T154]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.251205][  T154]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.251338][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.251522][  T154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.251680][  T154] RIP: 0033:0x7f6b48a26bcb
[    8.251813][  T154] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.252278][  T154] RSP: 002b:00007ffe7d40bfe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    8.252534][  T154] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f6b48a26bcb
[    8.252726][  T154] RDX: 0000000000000000 RSI: 00000000004119bd RDI: 0000000040000000
[    8.252918][  T154] RBP: 000000006a10dad5 R08: 0000000000000000 R09: 0000000000000000
[    8.253113][  T154] R10: 0000000000000000 R11: 0000000000000206 R12: 00005402b80d0120
[    8.253311][  T154] R13: 0100000000000000 R14: 000000000000001f R15: 0000000000000080
| [    8.254713][  T154] ---[ end trace 0000000000000000 ]---
| [    8.258798][   T69] ------------[ cut here ]------------
| [    8.258925][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/69
| [    8.259452][   T69] Tainted: [W]=WARN
[    8.259545][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.259696][   T69] Workqueue: netns cleanup_net
[    8.259825][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.259979][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.260464][   T69] RSP: 0018:ffa00000004a7878 EFLAGS: 00010286
[    8.260618][   T69] RAX: 00000000ffffffa6 RBX: ff11000002764040 RCX: 1ff4000000094ed5
[    8.260795][   T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000027640f8
[    8.260971][   T69] RBP: ff11000008269000 R08: 1fe22000004ec820 R09: ff110000089dd1d0
[    8.261147][   T69] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.261329][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.261519][   T69] FS:  0000000000000000(0000) GS:ff110000944b0000(0000) knlGS:0000000000000000
[    8.261730][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.261878][   T69] CR2: 00007f9d8c8eeab0 CR3: 000000000d52f005 CR4: 0000000000771ef0
[    8.262059][   T69] PKRU: 55555554
[    8.262149][   T69] Call Trace:
[    8.262238][   T69]  <TASK>
[    8.262306][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    8.262465][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    8.262616][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[    8.262738][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    8.262863][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[    8.262985][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[    8.263107][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    8.263233][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    8.263366][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.263493][   T69]  cleanup_net (net/core/net_namespace.c:702)
[    8.263618][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[    8.263737][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    8.263860][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.263979][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.264100][   T69]  process_one_work (kernel/workqueue.c:3314)
[    8.264222][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.264345][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.264479][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.264600][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.264728][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    8.264849][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.264968][   T69]  kthread (kernel/kthread.c:436)
[    8.265058][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.265212][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.265337][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.265467][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.265619][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.265740][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.265859][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.267007][   T69] ---[ end trace 0000000000000000 ]---
| [    8.366683][  T154] ------------[ cut here ]------------
| [    8.366847][  T154] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: bench-lookups_i/154
| [    8.367426][  T154] Tainted: [W]=WARN
[    8.367529][  T154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.367694][  T154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.367865][  T154] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.368339][  T154] RSP: 0018:ffa0000000787020 EFLAGS: 00010286
[    8.368518][  T154] RAX: 00000000ffffffa6 RBX: ff11000005965c40 RCX: 1ff40000000f0dca
[    8.368714][  T154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000005965cf8
[    8.368913][  T154] RBP: ff11000002949000 R08: 1fe2200000b2cba0 R09: ff1100000c2d5180
[    8.369114][  T154] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    8.369316][  T154] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000059f808c
[    8.369527][  T154] FS:  00007f6b4892cbc0(0000) GS:ff11000094530000(0000) knlGS:0000000000000000
[    8.369761][  T154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.369932][  T154] CR2: 000000002d714218 CR3: 000000000923a005 CR4: 0000000000771ef0
[    8.370134][  T154] PKRU: 55555554
[    8.370232][  T154] Call Trace:
[    8.370335][  T154]  <TASK>
[    8.370405][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.370545][  T154]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.370676][  T154]  ? 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)
[    8.370806][  T154]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.370904][  T154]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.371034][  T154]  __dev_notify_flags (net/core/dev.c:9787)
[    8.371165][  T154]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.371300][  T154]  ? netif_change_name (net/core/dev.c:1495)
[    8.371441][  T154]  ? __dev_change_flags (net/core/dev.c:9739)
[    8.371572][  T154]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    8.371702][  T154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.371832][  T154]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.371962][  T154]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    8.372094][  T154]  veth_newlink (drivers/net/veth.c:1871)
[    8.372226][  T154]  ? veth_poll_controller (drivers/net/veth.c:1470)
[    8.372365][  T154]  ? kasan_save_stack (mm/kasan/common.c:57)
[    8.372500][  T154]  ? kasan_save_track (mm/kasan/common.c:78)
[    8.372628][  T154]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    8.372769][  T154]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    8.372899][  T154]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    8.373030][  T154]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    8.373158][  T154]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.373294][  T154]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[    8.373434][  T154]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    8.373568][  T154]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    8.373702][  T154]  ? __dev_get_by_name (net/core/dev.c:883)
[    8.373837][  T154]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    8.373977][  T154]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    8.374115][  T154]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.374253][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.374398][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.374537][  T154]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.374675][  T154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.374811][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.374945][  T154]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.375074][  T154]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.375203][  T154]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.375336][  T154]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.375477][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.375607][  T154]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.375738][  T154]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.375870][  T154]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.376000][  T154]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.376135][  T154]  ? 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))
[    8.376271][  T154]  ? 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))
[    8.376410][  T154]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.376547][  T154]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.376676][  T154]  ? 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))
[    8.376807][  T154]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[    8.376940][  T154]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.377071][  T154]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.377204][  T154]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    8.377341][  T154]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    8.377484][  T154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.377619][  T154]  ? update_socket_protocol+0x10/0x10
[    8.377749][  T154]  ? alloc_file_clone (fs/file_table.c:477)
[    8.377881][  T154]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    8.378012][  T154]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.378176][  T154]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.378312][  T154]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.378455][  T154]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.378585][  T154]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.378715][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.378844][  T154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.379006][  T154] RIP: 0033:0x7f6b489a9e32
[    8.379143][  T154] 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)
[    8.379620][  T154] RSP: 002b:00007ffe7d40b6c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    8.379818][  T154] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f6b489a9e32
[    8.380012][  T154] RDX: 0000000000000078 RSI: 00007ffe7d40b770 RDI: 0000000000000009
[    8.380208][  T154] RBP: 00007ffe7d40b6f0 R08: 0000000000000000 R09: 0000000000000000
[    8.380413][  T154] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000009
[    8.380614][  T154] R13: 0000000000000045 R14: 00000000004120d0 R15: 0000000000000080
| [    8.381935][  T154] ---[ end trace 0000000000000000 ]---
| [    8.387829][  T154] ------------[ cut here ]------------
| [    8.387990][  T154] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: bench-lookups_i/154
| [    8.388568][  T154] Tainted: [W]=WARN
[    8.388666][  T154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.388827][  T154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.389020][  T154] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.389495][  T154] RSP: 0018:ffa00000007873a0 EFLAGS: 00010286
[    8.389659][  T154] RAX: 00000000ffffffa6 RBX: ff1100000f1983c0 RCX: 1ff40000000f0e3a
[    8.389868][  T154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000f198478
[    8.390061][  T154] RBP: ff1100000b9e4000 R08: 1fe2200001e33090 R09: ff1100000c2d5180
[    8.390256][  T154] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    8.390464][  T154] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[    8.390658][  T154] FS:  00007f6b4892cbc0(0000) GS:ff11000094530000(0000) knlGS:0000000000000000
[    8.390885][  T154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.391050][  T154] CR2: 000000002d714218 CR3: 000000000923a005 CR4: 0000000000771ef0
[    8.391344][  T154] PKRU: 55555554
[    8.391450][  T154] Call Trace:
[    8.391548][  T154]  <TASK>
[    8.391615][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.391746][  T154]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.391963][  T154]  ? 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)
[    8.392095][  T154]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.392194][  T154]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.392327][  T154]  __dev_notify_flags (net/core/dev.c:9787)
[    8.392468][  T154]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.392597][  T154]  ? netif_change_name (net/core/dev.c:1495)
[    8.392727][  T154]  ? __dev_change_flags (net/core/dev.c:9739)
[    8.392856][  T154]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    8.393074][  T154]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    8.393205][  T154]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.393341][  T154]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    8.393481][  T154]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    8.393700][  T154]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    8.393828][  T154]  ? __dev_get_by_name (net/core/dev.c:883)
[    8.393957][  T154]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    8.394091][  T154]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    8.394316][  T154]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.394458][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.394587][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.394717][  T154]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.394937][  T154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.395076][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.395205][  T154]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.395340][  T154]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.395478][  T154]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.395607][  T154]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.395737][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.395865][  T154]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.396087][  T154]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.396216][  T154]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.396347][  T154]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.396490][  T154]  ? 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))
[    8.396705][  T154]  ? 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))
[    8.396834][  T154]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.396970][  T154]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.397097][  T154]  ? 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))
[    8.397316][  T154]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[    8.397456][  T154]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.397587][  T154]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.397718][  T154]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    8.397933][  T154]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    8.398071][  T154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.398203][  T154]  ? update_socket_protocol+0x10/0x10
[    8.398336][  T154]  ? alloc_file_clone (fs/file_table.c:477)
[    8.398478][  T154]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    8.398607][  T154]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.398767][  T154]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.398905][  T154]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.399119][  T154]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.399247][  T154]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.399382][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.399520][  T154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.399764][  T154] RIP: 0033:0x7f6b489a9e32
[    8.399904][  T154] 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)
[    8.400465][  T154] RSP: 002b:00007ffe7d40b6c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    8.400659][  T154] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f6b489a9e32
[    8.400945][  T154] RDX: 0000000000000078 RSI: 00007ffe7d40b770 RDI: 0000000000000009
[    8.401136][  T154] RBP: 00007ffe7d40b6f0 R08: 0000000000000000 R09: 0000000000000000
[    8.401334][  T154] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000009
[    8.401534][  T154] R13: 0000000000000045 R14: 00000000004120d0 R15: 0000000000000080
| [    8.403010][  T154] ---[ end trace 0000000000000000 ]---
| [    8.403836][  T154] ------------[ cut here ]------------
| [    8.403965][  T154] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: bench-lookups_i/154
| [    8.404612][  T154] Tainted: [W]=WARN
[    8.404706][  T154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.404862][  T154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.405113][  T154] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.405667][  T154] RSP: 0018:ffa0000000787220 EFLAGS: 00010286
[    8.405825][  T154] RAX: 00000000ffffffa6 RBX: ff1100000f198900 RCX: 1ff40000000f0e0a
[    8.406011][  T154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000f1989b8
[    8.406294][  T154] RBP: ff11000002949000 R08: 1fe2200001e33138 R09: ff1100000c2d5158
[    8.406491][  T154] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[    8.406678][  T154] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002949ce1
[    8.406949][  T154] FS:  00007f6b4892cbc0(0000) GS:ff11000094530000(0000) knlGS:0000000000000000
[    8.407168][  T154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.407427][  T154] CR2: 000000002d714218 CR3: 000000000923a005 CR4: 0000000000771ef0
[    8.407616][  T154] PKRU: 55555554
[    8.407710][  T154] Call Trace:
[    8.407803][  T154]  <TASK>
[    8.407868][  T154]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.408078][  T154]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.408173][  T154]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.408310][  T154]  __dev_notify_flags (net/core/dev.c:9787)
[    8.408444][  T154]  ? netif_change_name (net/core/dev.c:1495)
[    8.408653][  T154]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.408780][  T154]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    8.408905][  T154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.409031][  T154]  ? 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))
[    8.409249][  T154]  netif_change_flags (net/core/dev.c:9820)
[    8.409384][  T154]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.409517][  T154]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.409645][  T154]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.409885][  T154]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.410011][  T154]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.410143][  T154]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.410273][  T154]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.410494][  T154]  ? __kernel_text_address (kernel/extable.c:79)
[    8.410622][  T154]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.410750][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.410876][  T154]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.411087][  T154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.411220][  T154]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.411349][  T154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.411570][  T154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.411698][  T154]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.411826][  T154]  ? __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)
[    8.411953][  T154]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.412086][  T154]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.412303][  T154]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.412442][  T154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.412570][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.412700][  T154]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.412912][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.413038][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.413181][  T154]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.413315][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.413536][  T154]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.413663][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.413791][  T154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.413919][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.414136][  T154]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.414264][  T154]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.414401][  T154]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.414532][  T154]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.414744][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.414870][  T154]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.414999][  T154]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.415133][  T154]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.415368][  T154]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.415502][  T154]  ? 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))
[    8.415631][  T154]  ? 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))
[    8.415759][  T154]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.415973][  T154]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.416108][  T154]  ? 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))
[    8.416237][  T154]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[    8.416373][  T154]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.416506][  T154]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.416636][  T154]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    8.416764][  T154]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    8.416898][  T154]  ? fput_close_sync (fs/file_table.c:615)
[    8.417118][  T154]  ? alloc_file_clone (fs/file_table.c:477)
[    8.417246][  T154]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    8.417381][  T154]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.417631][  T154]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.417758][  T154]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.417885][  T154]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.418018][  T154]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.418232][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.418370][  T154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.418533][  T154] RIP: 0033:0x7f6b489a9e32
[    8.418665][  T154] 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)
[    8.419213][  T154] RSP: 002b:00007ffe7d40b6d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    8.419416][  T154] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f6b489a9e32
[    8.419613][  T154] RDX: 0000000000000020 RSI: 00007ffe7d40b750 RDI: 0000000000000009
[    8.419803][  T154] RBP: 00007ffe7d40b700 R08: 0000000000000000 R09: 0000000000000000
[    8.420084][  T154] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000433b57b6
[    8.420280][  T154] R13: 0100000000000000 R14: 00005402b80d0120 R15: 0100000000000000
| [    8.421833][  T154] ---[ end trace 0000000000000000 ]---
| [    8.424197][  T154] ------------[ cut here ]------------
| [    8.424345][  T154] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: bench-lookups_i/154
| [    8.425643][  T154] Tainted: [W]=WARN
[    8.425740][  T154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.425899][  T154] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.426144][  T154] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.426679][  T154] RSP: 0018:ffa0000000787220 EFLAGS: 00010286
[    8.426839][  T154] RAX: 00000000ffffffa6 RBX: ff1100000f1d8200 RCX: 1ff40000000f0e0a
[    8.427030][  T154] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000f1d82b8
[    8.427229][  T154] RBP: ff1100000b9e4000 R08: 1fe2200001e3b058 R09: ff1100000c2d5158
[    8.427502][  T154] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[    8.427692][  T154] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000b9e4ce1
[    8.427884][  T154] FS:  00007f6b4892cbc0(0000) GS:ff11000094530000(0000) knlGS:0000000000000000
[    8.428114][  T154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.428279][  T154] CR2: 00007f6b43fffcd4 CR3: 000000000923a005 CR4: 0000000000771ef0
[    8.428552][  T154] PKRU: 55555554
[    8.428648][  T154] Call Trace:
[    8.428742][  T154]  <TASK>
[    8.428808][  T154]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.428937][  T154]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.429040][  T154]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.429167][  T154]  __dev_notify_flags (net/core/dev.c:9787)
[    8.429302][  T154]  ? netif_change_name (net/core/dev.c:1495)
[    8.429509][  T154]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.429639][  T154]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    8.429766][  T154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.429894][  T154]  ? 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))
[    8.430029][  T154]  netif_change_flags (net/core/dev.c:9820)
[    8.430243][  T154]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.430432][  T154]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.430561][  T154]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.430720][  T154]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.430849][  T154]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.430981][  T154]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.431194][  T154]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.431327][  T154]  ? __kernel_text_address (kernel/extable.c:79)
[    8.431515][  T154]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.431645][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.431773][  T154]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.431909][  T154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.432120][  T154]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.432248][  T154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.432436][  T154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.432564][  T154]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.432693][  T154]  ? __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)
[    8.432820][  T154]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.432954][  T154]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.433167][  T154]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.433300][  T154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.433487][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.433617][  T154]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.433747][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.433880][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.434091][  T154]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.434221][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.434352][  T154]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.434543][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.434670][  T154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.434799][  T154]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.434933][  T154]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.435145][  T154]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.435277][  T154]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.435463][  T154]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.435595][  T154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.435722][  T154]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.435857][  T154]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.436069][  T154]  ? rtnl_stats_set (./include/net/netlink.h:785 (discriminator 2))
[    8.436197][  T154]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.436331][  T154]  ? 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))
[    8.436521][  T154]  ? 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))
[    8.436656][  T154]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.436788][  T154]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.436925][  T154]  ? 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))
[    8.437141][  T154]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[    8.437278][  T154]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.437469][  T154]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.437605][  T154]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    8.437738][  T154]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    8.437884][  T154]  ? fput_close_sync (fs/file_table.c:615)
[    8.438096][  T154]  ? alloc_file_clone (fs/file_table.c:477)
[    8.438224][  T154]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    8.438355][  T154]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.438572][  T154]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.438699][  T154]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.438825][  T154]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.438959][  T154]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.439169][  T154]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.439301][  T154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.439518][  T154] RIP: 0033:0x7f6b489a9e32
[    8.439650][  T154] 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)
[    8.440197][  T154] RSP: 002b:00007ffe7d40b6d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[    8.440453][  T154] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f6b489a9e32
[    8.440642][  T154] RDX: 0000000000000020 RSI: 00007ffe7d40b750 RDI: 0000000000000009
[    8.440838][  T154] RBP: 00007ffe7d40b700 R08: 0000000000000000 R09: 0000000000000000
[    8.441112][  T154] R10: 0000000000000000 R11: 0000000000000246 R12: 000000001f4de3b9
[    8.441306][  T154] R13: 0100000000000000 R14: 00000100b80d0120 R15: 0100000000000000
| [    8.442900][  T154] ---[ end trace 0000000000000000 ]---
| [    8.448638][   T37] ------------[ cut here ]------------
| [    8.448811][   T37] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/37
| [    8.449398][   T37] Tainted: [W]=WARN
[    8.449494][   T37] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.449646][   T37] Workqueue: events_unbound linkwatch_event
[    8.449801][   T37] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.449961][   T37] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    8.450397][   T37] RSP: 0018:ffa000000029f9e0 EFLAGS: 00010286
[    8.450552][   T37] RAX: 00000000ffffffa6 RBX: ff1100000f1d9700 RCX: 1ff4000000053f02
[    8.450732][   T37] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000f1d97b8
[    8.450909][   T37] RBP: ff11000002949000 R08: 1fe2200001e3b2f8 R09: ff11000001d90ba8
[    8.451087][   T37] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[    8.451269][   T37] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.451508][   T37] FS:  0000000000000000(0000) GS:ff11000094530000(0000) knlGS:0000000000000000
[    8.451725][   T37] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.451874][   T37] CR2: 00007f6b43fffcd4 CR3: 000000000923a005 CR4: 0000000000771ef0
[    8.452051][   T37] PKRU: 55555554
[    8.452140][   T37] Call Trace:
[    8.452229][   T37]  <TASK>
[    8.452296][   T37]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.452468][   T37]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.452590][   T37]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.452680][   T37]  netif_state_change (net/core/dev.c:1605)
[    8.452800][   T37]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[    8.452948][   T37]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    8.453067][   T37]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    8.453187][   T37]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.453317][   T37]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    8.453491][   T37]  ? __linkwatch_run_queue (./include/linux/list.h:561)
[    8.453612][   T37]  process_one_work (kernel/workqueue.c:3314)
[    8.453735][   T37]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.453857][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.453983][   T37]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.454105][   T37]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.454223][   T37]  kthread (kernel/kthread.c:436)
[    8.454318][   T37]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.454519][   T37]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.454638][   T37]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.454760][   T37]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.454910][   T37]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.455029][   T37]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.455149][   T37]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.456342][   T37] ---[ end trace 0000000000000000 ]---
| [    9.151755][   T37] ------------[ cut here ]------------
| [    9.151941][   T37] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/37
| [    9.152492][   T37] Tainted: [W]=WARN
[    9.152584][   T37] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.152741][   T37] Workqueue: events_unbound linkwatch_event
[    9.152933][   T37] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.153102][   T37] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[    9.153551][   T37] RSP: 0018:ffa000000029f9e0 EFLAGS: 00010286
[    9.153709][   T37] RAX: 00000000ffffffa6 RBX: ff1100000f031700 RCX: 1ff4000000053f02
[    9.153890][   T37] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000f0317b8
[    9.154092][   T37] RBP: ff1100000b9e4000 R08: 1fe2200001e062f8 R09: ff11000001d90ba8
[    9.154281][   T37] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[    9.154521][   T37] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.154709][   T37] FS:  0000000000000000(0000) GS:ff11000094530000(0000) knlGS:0000000000000000
[    9.154925][   T37] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.155079][   T37] CR2: 00007f6b43fffcd4 CR3: 000000000923a005 CR4: 0000000000771ef0
[    9.155261][   T37] PKRU: 55555554
[    9.155421][   T37] Call Trace:
[    9.155534][   T37]  <TASK>
[    9.155599][   T37]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.155720][   T37]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.155841][   T37]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.155935][   T37]  netif_state_change (net/core/dev.c:1605)
[    9.156056][   T37]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[    9.156207][   T37]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    9.156332][   T37]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    9.156469][   T37]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.156593][   T37]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    9.156713][   T37]  ? __linkwatch_run_queue (./include/linux/list.h:561)
[    9.156834][   T37]  process_one_work (kernel/workqueue.c:3314)
[    9.156957][   T37]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.157079][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.157204][   T37]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.157333][   T37]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.157464][   T37]  kthread (kernel/kthread.c:436)
[    9.157555][   T37]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.157707][   T37]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.157828][   T37]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.157964][   T37]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.158117][   T37]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.158244][   T37]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.158377][   T37]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.229179][  T154] bench-lookups_i (154) used greatest stack depth: 23504 bytes left
| [   30.234692][   T69] ------------[ cut here ]------------
| [   30.234883][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/69
| [   30.235415][   T69] Tainted: [W]=WARN
[   30.235516][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.235664][   T69] Workqueue: netns cleanup_net
[   30.235791][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.235947][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[   30.236405][   T69] RSP: 0018:ffa00000004a7938 EFLAGS: 00010286
[   30.236565][   T69] RAX: 00000000ffffffa6 RBX: ff11000010867380 RCX: 1ff4000000094eed
[   30.236743][   T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000010867438
[   30.236924][   T69] RBP: ff1100000c414000 R08: 1fe220000210ce88 R09: ff110000089dd1d0
[   30.237101][   T69] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   30.237281][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.237474][   T69] FS:  0000000000000000(0000) GS:ff110000944b0000(0000) knlGS:0000000000000000
[   30.237692][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.237843][   T69] CR2: 00007f9d8c8eeab0 CR3: 0000000026f49002 CR4: 0000000000771ef0
[   30.238032][   T69] PKRU: 55555554
[   30.238121][   T69] Call Trace:
[   30.238211][   T69]  <TASK>
[   30.238280][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.238440][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.238598][   T69]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   30.238719][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   30.238843][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.238959][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   30.239080][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.239202][   T69]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   30.239327][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   30.239451][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.239581][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   30.239701][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.239817][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.239935][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.240068][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.240188][   T69]  process_one_work (kernel/workqueue.c:3314)
[   30.240316][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.240442][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.240569][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.240690][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.240810][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   30.240928][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.241046][   T69]  kthread (kernel/kthread.c:436)
[   30.241137][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.241291][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.241416][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.241545][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.241691][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.241813][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.241932][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.243074][   T69] ---[ end trace 0000000000000000 ]---
| [   30.251252][   T69] ------------[ cut here ]------------
| [   30.251411][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/69
| [   30.251952][   T69] Tainted: [W]=WARN
[   30.252046][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.252207][   T69] Workqueue: netns cleanup_net
[   30.252344][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.252523][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[   30.252997][   T69] RSP: 0018:ffa00000004a7748 EFLAGS: 00010286
[   30.253157][   T69] RAX: 00000000ffffffa6 RBX: ff11000010867540 RCX: 1ff4000000094eaf
[   30.253347][   T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000108675f8
[   30.253546][   T69] RBP: ff11000002949000 R08: 1fe220000210cec0 R09: ff110000089dd1d0
[   30.253738][   T69] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   30.253926][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000b9e4000
[   30.254115][   T69] FS:  0000000000000000(0000) GS:ff110000944b0000(0000) knlGS:0000000000000000
[   30.254366][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.254533][   T69] CR2: 00007f9d8c8eeab0 CR3: 0000000026f49002 CR4: 0000000000771ef0
[   30.254721][   T69] PKRU: 55555554
[   30.254816][   T69] Call Trace:
[   30.254909][   T69]  <TASK>
[   30.255688][   T69]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.255851][   T69]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.255947][   T69]  netif_close_many (net/core/dev.c:1804)
[   30.256093][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.256219][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.256355][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.256500][   T69]  ? __dev_close_many (net/core/dev.c:1781)
[   30.256625][   T69]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   30.256781][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   30.256953][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.257077][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.257235][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.257378][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.257506][   T69]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   30.257663][   T69]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   30.257795][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   30.257923][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   30.258047][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   30.258176][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   30.258310][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   30.258444][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.258594][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   30.258719][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.258840][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.258982][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.259104][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.259229][   T69]  process_one_work (kernel/workqueue.c:3314)
[   30.259366][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.259498][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.259627][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.259751][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.259874][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   30.260010][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.260131][   T69]  kthread (kernel/kthread.c:436)
[   30.260225][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.260418][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.260550][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.260674][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.260827][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.260964][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.261090][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.262312][   T69] ---[ end trace 0000000000000000 ]---
| [   30.303861][   T69] ------------[ cut here ]------------
| [   30.304046][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/69
| [   30.306455][   T69] Tainted: [W]=WARN
[   30.306584][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.306743][   T69] Workqueue: netns cleanup_net
[   30.306878][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.307043][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 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
[   30.307837][   T69] RSP: 0018:ffa00000004a7748 EFLAGS: 00010286
[   30.308001][   T69] RAX: 00000000ffffffa6 RBX: ff1100000fcebe00 RCX: 1ff4000000094eaf
[   30.308203][   T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000fcebeb8
[   30.308706][   T69] RBP: ff1100000b9e4000 R08: 1fe2200001f9d7d8 R09: ff110000089dd1d0
[   30.308898][   T69] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   30.309087][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004a77e0
[   30.309304][   T69] FS:  0000000000000000(0000) GS:ff11000094530000(0000) knlGS:0000000000000000
[   30.309825][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.309986][   T69] CR2: 000055a77f0b82b8 CR3: 00000000090d6003 CR4: 0000000000771ef0
[   30.310174][   T69] PKRU: 55555554
[   30.310272][   T69] Call Trace:
[   30.310663][   T69]  <TASK>
[   30.310730][   T69]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.310856][   T69]  ? notifier_call_chain (kernel/notifier.c:85)
[   30.310982][   T69]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.311077][   T69]  netif_close_many (net/core/dev.c:1804)
[   30.311202][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.311331][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.311844][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.311997][   T69]  ? __dev_close_many (net/core/dev.c:1781)
[   30.312124][   T69]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   30.312286][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   30.312835][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.312963][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.313121][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   30.313247][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.313420][   T69]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   30.313588][   T69]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   30.313716][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   30.313846][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   30.313971][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   30.314103][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   30.314229][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   30.314365][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   30.314498][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   30.314640][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.314764][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   30.314889][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   30.315013][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.315138][   T69]  process_one_work (kernel/workqueue.c:3314)
[   30.315266][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   30.315403][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.315538][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   30.315678][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.315803][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   30.315929][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   30.316054][   T69]  kthread (kernel/kthread.c:436)
[   30.316150][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.316310][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   30.316452][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.316604][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   30.316762][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.316892][   T69]  ? 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