======================================
| xx__-> [    8.549438][  T132] ------------[ cut here ]------------
| [    8.549672][  T132] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/132
| [    8.549921][  T132] Modules linked in: netdevsim
| [    8.550844][  T132] Tainted: [W]=WARN
[    8.550954][  T132] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.551124][  T132] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.551344][  T132] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.551825][  T132] RSP: 0018:ffa0000000697aa8 EFLAGS: 00010286
[    8.552023][  T132] RAX: 00000000ffffffa6 RBX: ff1100000b0fb6c0 RCX: 1ff40000000d2f1b
[    8.552233][  T132] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b0fb770
[    8.552434][  T132] RBP: ff11000008c64000 R08: 1fe220000161f6ef R09: ff1100000c475180
[    8.552632][  T132] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    8.552832][  T132] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c64000
[    8.553040][  T132] FS:  00007f4ca1e8c840(0000) GS:ff1100009303b000(0000) knlGS:0000000000000000
[    8.553386][  T132] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.553647][  T132] CR2: 0000000000479648 CR3: 000000000c79f003 CR4: 0000000000771ef0
[    8.553847][  T132] PKRU: 55555554
[    8.553956][  T132] Call Trace:
[    8.554154][  T132]  <TASK>
[    8.554321][  T132]  ? ip6_route_dev_notify (net/ipv6/route.c:6484)
[    8.554547][  T132]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.554774][  T132]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.554963][  T132]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.555068][  T132]  register_netdevice (net/core/dev.c:11488)
[    8.555213][  T132]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.555385][  T132]  register_netdev (net/core/dev.c:11552)
[    8.555605][  T132]  loopback_net_init (drivers/net/loopback.c:218)
[    8.555740][  T132]  ops_init (net/core/net_namespace.c:137)
[    8.555845][  T132]  setup_net (net/core/net_namespace.c:446)
[    8.556041][  T132]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.556179][  T132]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.556321][  T132]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.556457][  T132]  copy_net_ns (net/core/net_namespace.c:579)
[    8.556679][  T132]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.556815][  T132]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.556957][  T132]  ksys_unshare (kernel/fork.c:3243)
[    8.557182][  T132]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.557323][  T132]  ? __ia32_sys_open (fs/open.c:1374)
[    8.557461][  T132]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.557593][  T132]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.557728][  T132]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.557863][  T132]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.558020][  T132]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.558263][  T132]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.558439][  T132] RIP: 0033:0x7f4ca214ebcb
[    8.558588][  T132] 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
[    8.559272][  T132] RSP: 002b:00007ffd939d6cf8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    8.559473][  T132] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f4ca214ebcb
[    8.559761][  T132] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    8.559966][  T132] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    8.560170][  T132] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd939d8f20
[    8.560373][  T132] R13: 0000000000000001 R14: 00007f4ca1e8c6f8 R15: 00007ffd939dab9a
| [    8.617974][  T134] ------------[ cut here ]------------
| [    8.618359][  T134] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: tee/134
| [    8.618751][  T134] Modules linked in: netdevsim
| [    8.619431][  T134] Tainted: [W]=WARN
[    8.619610][  T134] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.619873][  T134] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.620156][  T134] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.620814][  T134] RSP: 0018:ffa00000005f7500 EFLAGS: 00010286
[    8.621087][  T134] RAX: 00000000ffffffa6 RBX: ff1100000b925540 RCX: 1ff40000000bee66
[    8.621411][  T134] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b9255f0
[    8.621712][  T134] RBP: ff1100000ca92000 R08: 1fe2200001724abf R09: ff1100000eeeaf48
[    8.622024][  T134] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    8.622349][  T134] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ca92000
[    8.622656][  T134] FS:  00007f5b6a165740(0000) GS:ff110000930bb000(0000) knlGS:0000000000000000
[    8.623010][  T134] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.623299][  T134] CR2: 00007fdb6d34cf98 CR3: 000000000baeb004 CR4: 0000000000771ef0
[    8.623604][  T134] PKRU: 55555554
[    8.623780][  T134] Call Trace:
[    8.623963][  T134]  <TASK>
[    8.624119][  T134]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.624365][  T134]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.624548][  T134]  register_netdevice (net/core/dev.c:11488)
[    8.624769][  T134]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.625036][  T134]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    8.625299][  T134] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    8.625566][  T134] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    8.625791][  T134] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    8.626063][  T134]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    8.626302][  T134]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    8.626567][  T134]  ? is_module_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) kernel/module/main.c:3876 (discriminator 2))
[    8.626787][  T134]  ? static_obj (kernel/locking/lockdep.c:858)
[    8.626976][  T134]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.627223][  T134]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    8.627492][  T134] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    8.627715][  T134]  call_driver_probe (drivers/base/dd.c:629)
[    8.627944][  T134]  really_probe (drivers/base/dd.c:709)
[    8.628170][  T134]  ? driver_probe_device (drivers/base/dd.c:135)
[    8.628402][  T134]  __driver_probe_device (drivers/base/dd.c:871)
[    8.628624][  T134]  driver_probe_device (drivers/base/dd.c:901)
[    8.628844][  T134]  __device_attach_driver (drivers/base/dd.c:1029)
[    8.629080][  T134]  bus_for_each_drv (drivers/base/bus.c:500)
[    8.629326][  T134]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    8.629548][  T134]  __device_attach (drivers/base/dd.c:1101)
[    8.629765][  T134]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    8.629994][  T134]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    8.630280][  T134]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    8.630500][  T134]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    8.630723][  T134]  device_initial_probe (drivers/base/dd.c:1156)
[    8.630949][  T134]  bus_probe_device (drivers/base/bus.c:613)
[    8.631173][  T134]  device_add (drivers/base/core.c:3706)
[    8.631407][  T134]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    8.631667][  T134]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    8.631887][  T134]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    8.632115][  T134] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    8.632399][  T134]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.632620][  T134]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    8.632881][  T134]  ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2))
[    8.633110][  T134]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    8.633349][  T134]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    8.633568][  T134]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    8.633787][  T134]  ? kernfs_ops (fs/kernfs/file.c:128)
[    8.633975][  T134]  new_sync_write (fs/read_write.c:595)
[    8.634219][  T134]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.634442][  T134]  ? new_sync_read (./include/linux/ioprio.h:41)
[    8.634661][  T134]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.634879][  T134]  ? ksys_write (fs/read_write.c:740)
[    8.635111][  T134]  vfs_write (fs/read_write.c:688)
[    8.635308][  T134]  ksys_write (fs/read_write.c:740)
[    8.635488][  T134]  ? __ia32_sys_read (fs/read_write.c:724)
[    8.635709][  T134]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.635939][  T134]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.636159][  T134]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.636393][  T134]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.636613][  T134]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.636869][  T134] RIP: 0033:0x7f5b6a1d808e
[    8.637103][  T134] 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
[    8.637759][  T134] RSP: 002b:00007ffe94d895c0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    8.638070][  T134] RAX: ffffffffffffffda RBX: 00005604837aa3d0 RCX: 00007f5b6a1d808e
[    8.638389][  T134] RDX: 0000000000000007 RSI: 00007ffe94d89760 RDI: 0000000000000003
[    8.638691][  T134] RBP: 00007ffe94d895d0 R08: 0000000000000000 R09: 0000000000000000
[    8.638997][  T134] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000007
[    8.639321][  T134] R13: 0000000000000007 R14: 00007ffe94d89760 R15: 00005604837aa3d0
| [    8.714448][  T138] ------------[ cut here ]------------
| [    8.714587][  T138] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/138
| [    8.714819][  T138] Modules linked in: netdevsim
| [    8.716254][  T138] Tainted: [W]=WARN
[    8.716360][  T138] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.716582][  T138] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.716758][  T138] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.717286][  T138] RSP: 0018:ffa00000005f7038 EFLAGS: 00010286
[    8.717455][  T138] RAX: 00000000ffffffa6 RBX: ff1100000b806c40 RCX: 1ff40000000bedcd
[    8.717688][  T138] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b806cf0
[    8.717889][  T138] RBP: ff1100000ca92000 R08: 1fe2200001700d9f R09: ff1100000cb25180
[    8.718095][  T138] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[    8.718308][  T138] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[    8.718507][  T138] FS:  00007f2b07f7c840(0000) GS:ff1100009313b000(0000) knlGS:0000000000000000
[    8.718741][  T138] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.718917][  T138] CR2: 00000000247df988 CR3: 000000000ef91005 CR4: 0000000000771ef0
[    8.719123][  T138] PKRU: 55555554
[    8.719231][  T138] Call Trace:
[    8.719333][  T138]  <TASK>
[    8.719403][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.719538][  T138]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[    8.719671][  T138]  notifier_call_chain (kernel/notifier.c:85)
[    8.719816][  T138]  netif_change_name (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:1509)
[    8.719960][  T138]  ? netdev_adjacent_rename_links (net/core/dev.c:9538)
[    8.720127][  T138]  ? 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))
[    8.720272][  T138]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[    8.720410][  T138]  do_setlink.isra.0 (net/core/rtnetlink.c:3186)
[    8.720546][  T138]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.720681][  T138]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.720845][  T138]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.720986][  T138]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.721120][  T138]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.721260][  T138]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.721394][  T138]  ? __kernel_text_address (kernel/extable.c:79)
[    8.721534][  T138]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.721670][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.721803][  T138]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.721941][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.722074][  T138]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.722221][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.722355][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.722487][  T138]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.722620][  T138]  ? __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)
[    8.722754][  T138]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.722892][  T138]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.723032][  T138]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.723169][  T138]  ? nla_get_range_signed (lib/nlattr.c:270)
[    8.723308][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.723443][  T138]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.723578][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.723712][  T138]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.723844][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.723981][  T138]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.724114][  T138]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.724260][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.724392][  T138]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.724526][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.724658][  T138]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.724795][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.724937][  T138]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.725073][  T138]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.725213][  T138]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.725345][  T138]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.725480][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.725611][  T138]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.725745][  T138]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.725878][  T138]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.726022][  T138]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.726161][  T138]  ? 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))
[    8.726299][  T138]  ? 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))
[    8.726433][  T138]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.726565][  T138]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.726698][  T138]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.726832][  T138]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.726971][  T138]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.727108][  T138]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.727250][  T138]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.727385][  T138]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.727517][  T138]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.727682][  T138]  ? move_addr_to_kernel (net/socket.c:258)
[    8.727815][  T138]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.727951][  T138]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.728088][  T138]  ___sys_sendmsg (net/socket.c:2752)
[    8.728229][  T138]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.728396][  T138]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.728541][  T138]  __sys_sendmsg (net/socket.c:2784)
[    8.728673][  T138]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.728805][  T138]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    8.728975][  T138]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    8.729113][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.729256][  T138]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.729392][  T138]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.729526][  T138]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.729661][  T138]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.729827][  T138] RIP: 0033:0x7f2b081b608e
[    8.729971][  T138] 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
[    8.730468][  T138] RSP: 002b:00007ffff8076090 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.730669][  T138] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2b081b608e
[    8.730870][  T138] RDX: 0000000000000000 RSI: 00007ffff8076140 RDI: 0000000000000003
[    8.731079][  T138] RBP: 00007ffff80760a0 R08: 0000000000000000 R09: 0000000000000000
[    8.731286][  T138] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10cfcd
[    8.731486][  T138] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffff8076810
| [    8.773617][  T139] ------------[ cut here ]------------
| [    8.773776][  T139] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/139
| [    8.774020][  T139] Modules linked in: netdevsim
| [    8.774442][  T139] Tainted: [W]=WARN
[    8.774545][  T139] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.774713][  T139] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.774889][  T139] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.775389][  T139] RSP: 0018:ffa0000000647020 EFLAGS: 00010286
[    8.775559][  T139] RAX: 00000000ffffffa6 RBX: ff1100000a6ac940 RCX: 1ff40000000c8dca
[    8.775758][  T139] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a6ac9f0
[    8.775964][  T139] RBP: ff1100000ca92000 R08: 1fe22000014d593f R09: ff1100000c44ae80
[    8.776169][  T139] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    8.776373][  T139] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    8.776575][  T139] FS:  00007f3785a7e840(0000) GS:ff1100009313b000(0000) knlGS:0000000000000000
[    8.776812][  T139] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.776985][  T139] CR2: 000000003899d988 CR3: 000000000ef5d001 CR4: 0000000000771ef0
[    8.777214][  T139] PKRU: 55555554
[    8.777318][  T139] Call Trace:
[    8.777417][  T139]  <TASK>
[    8.777489][  T139]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[    8.777622][  T139]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.777757][  T139]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.777860][  T139]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.777999][  T139]  __dev_notify_flags (net/core/dev.c:9787)
[    8.778136][  T139]  ? netif_change_name (net/core/dev.c:1495)
[    8.778278][  T139]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.778414][  T139]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    8.778546][  T139]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.778680][  T139]  ? 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))
[    8.778814][  T139]  netif_change_flags (net/core/dev.c:9820)
[    8.778953][  T139]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.779089][  T139]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.779231][  T139]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.779400][  T139]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.779533][  T139]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.779667][  T139]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.779809][  T139]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.779950][  T139]  ? __kernel_text_address (kernel/extable.c:79)
[    8.780085][  T139]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.780234][  T139]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.780370][  T139]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.780508][  T139]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.780642][  T139]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.780774][  T139]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.780907][  T139]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.781047][  T139]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.781185][  T139]  ? __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)
[    8.781326][  T139]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.781468][  T139]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.781603][  T139]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.781747][  T139]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.781883][  T139]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.782022][  T139]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.782157][  T139]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.782297][  T139]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.782430][  T139]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.782563][  T139]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.782700][  T139]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.782834][  T139]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.782973][  T139]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.783108][  T139]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.783249][  T139]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.783387][  T139]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.783522][  T139]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.783658][  T139]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.783915][  T139]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.784058][  T139]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.784191][  T139]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.784330][  T139]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.784463][  T139]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.784598][  T139]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.784740][  T139]  ? 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))
[    8.784873][  T139]  ? 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))
[    8.785013][  T139]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.785152][  T139]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.785294][  T139]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.785449][  T139]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.785624][  T139]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.785761][  T139]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.785894][  T139]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.786033][  T139]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.786172][  T139]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.786341][  T139]  ? move_addr_to_kernel (net/socket.c:258)
[    8.786475][  T139]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.786607][  T139]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.786743][  T139]  ___sys_sendmsg (net/socket.c:2752)
[    8.786876][  T139]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.787047][  T139]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.787202][  T139]  __sys_sendmsg (net/socket.c:2784)
[    8.787337][  T139]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.787469][  T139]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    8.787642][  T139]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    8.787776][  T139]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.787920][  T139]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.788059][  T139]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.788193][  T139]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.788331][  T139]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.788495][  T139] RIP: 0033:0x7f3785cb808e
[    8.788634][  T139] 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
[    8.789112][  T139] RSP: 002b:00007ffe11b8fcd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.789323][  T139] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3785cb808e
[    8.789520][  T139] RDX: 0000000000000000 RSI: 00007ffe11b8fd80 RDI: 0000000000000003
[    8.789720][  T139] RBP: 00007ffe11b8fce0 R08: 0000000000000000 R09: 0000000000000000
[    8.789918][  T139] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10cfcd
[    8.790122][  T139] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe11b90450
| [    8.867901][  T141] ------------[ cut here ]------------
| [    8.868131][  T141] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/141
| [    8.868393][  T141] Modules linked in: veth netdevsim
| [    8.868941][  T141] Tainted: [W]=WARN
[    8.869057][  T141] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.869265][  T141] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.869457][  T141] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.869966][  T141] RSP: 0018:ffa00000004e6e30 EFLAGS: 00010286
[    8.870151][  T141] RAX: 00000000ffffffa6 RBX: ff1100000575f240 RCX: 1ff400000009cd8c
[    8.870366][  T141] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000575f2f0
[    8.870578][  T141] RBP: ff1100000a2e9000 R08: 1fe2200000aebe5f R09: ff1100000c92ae80
[    8.870788][  T141] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.871006][  T141] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c644400
[    8.871314][  T141] FS:  00007fbb98e5b840(0000) GS:ff11000092fbb000(0000) knlGS:0000000000000000
[    8.871582][  T141] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.871761][  T141] CR2: 000000000042ebe0 CR3: 000000000eeff002 CR4: 0000000000771ef0
[    8.871979][  T141] PKRU: 55555554
[    8.872100][  T141] Call Trace:
[    8.872323][  T141]  <TASK>
[    8.872398][  T141]  ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[    8.872538][  T141]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.872681][  T141]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.872788][  T141]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.872933][  T141]  __dev_notify_flags (net/core/dev.c:9787)
[    8.873077][  T141]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.873322][  T141]  ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:164)
[    8.873464][  T141]  ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:164)
[    8.873606][  T141]  ? netif_change_name (net/core/dev.c:1495)
[    8.873749][  T141]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[    8.873924][  T141]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[    8.874076][  T141]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    8.874309][  T141] veth_newlink (drivers/net/veth.c:1871) veth
[    8.874453][  T141]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[    8.874630][  T141]  ? kasan_save_stack (mm/kasan/common.c:57)
[    8.874771][  T141]  ? kasan_save_track (mm/kasan/common.c:78)
[    8.874909][  T141]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    8.875073][  T141]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    8.875317][  T141]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    8.875461][  T141]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    8.875615][  T141]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.875757][  T141]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[    8.875909][  T141]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    8.876056][  T141]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    8.876234][  T141]  ? __dev_get_by_name (net/core/dev.c:883)
[    8.876374][  T141]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    8.876519][  T141]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    8.876664][  T141]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.876806][  T141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.876951][  T141]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.877091][  T141]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.877237][  T141]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.877377][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.877522][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.877663][  T141]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.877806][  T141]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.877951][  T141]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.878092][  T141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.878239][  T141]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.878381][  T141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.878521][  T141]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.878662][  T141]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.878804][  T141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.878950][  T141]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.879093][  T141]  ? 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))
[    8.879242][  T141]  ? 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))
[    8.879383][  T141]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.879523][  T141]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.879663][  T141]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.879804][  T141]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.879951][  T141]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.880092][  T141]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.880244][  T141]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.880384][  T141]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.880524][  T141]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.880698][  T141]  ? move_addr_to_kernel (net/socket.c:258)
[    8.880843][  T141]  ___sys_sendmsg (net/socket.c:2752)
[    8.880993][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.881133][  T141]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.881295][  T141]  __sys_sendmsg (net/socket.c:2784)
[    8.881434][  T141]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.881574][  T141]  ? down_write_nested (kernel/locking/rwsem.c:1753)
[    8.881714][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.881856][  T141]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[    8.882002][  T141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.882143][  T141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.882292][  T141]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.882430][  T141]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.882568][  T141]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.882709][  T141]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.882882][  T141] RIP: 0033:0x7fbb9909508e
[    8.883240][  T141] 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
[    8.883741][  T141] RSP: 002b:00007ffff5995fd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.883958][  T141] RAX: ffffffffffffffda RBX: 00007ffff5996778 RCX: 00007fbb9909508e
[    8.884170][  T141] RDX: 0000000000000000 RSI: 00007ffff5996080 RDI: 0000000000000003
[    8.884385][  T141] RBP: 00007ffff5995fe0 R08: 0000000000000000 R09: 0000000000000000
[    8.884593][  T141] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10cfcd
[    8.884800][  T141] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffff5996750
| [    8.898705][  T141] ------------[ cut here ]------------
| [    8.898869][  T141] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/141
| [    8.899114][  T141] Modules linked in: veth netdevsim
| [    8.899582][  T141] Tainted: [W]=WARN
[    8.899686][  T141] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.899856][  T141] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.900042][  T141] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.900551][  T141] RSP: 0018:ffa00000004e71b0 EFLAGS: 00010286
[    8.900723][  T141] RAX: 00000000ffffffa6 RBX: ff1100000575f3c0 RCX: 1ff400000009cdfc
[    8.900924][  T141] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000575f470
[    8.901132][  T141] RBP: ff11000005261000 R08: 1fe2200000aebe8f R09: ff1100000c92ae80
[    8.901347][  T141] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.901548][  T141] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc0510b20
[    8.901751][  T141] FS:  00007fbb98e5b840(0000) GS:ff1100009313b000(0000) knlGS:0000000000000000
[    8.901998][  T141] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.902178][  T141] CR2: 00007f3785b4b574 CR3: 000000000eeff002 CR4: 0000000000771ef0
[    8.902389][  T141] PKRU: 55555554
[    8.902493][  T141] Call Trace:
[    8.902595][  T141]  <TASK>
[    8.902665][  T141]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.902804][  T141]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.902908][  T141]  __dev_notify_flags (net/core/dev.c:9787)
[    8.903052][  T141]  ? netif_change_name (net/core/dev.c:1495)
[    8.903193][  T141]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    8.903335][  T141]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.903473][  T141]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    8.903611][  T141]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    8.903755][  T141]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    8.903891][  T141]  ? __dev_get_by_name (net/core/dev.c:883)
[    8.904036][  T141]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    8.904184][  T141]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    8.904330][  T141]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.904469][  T141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.904606][  T141]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.904742][  T141]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.904876][  T141]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.905049][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.905196][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.905341][  T141]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.905477][  T141]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.905614][  T141]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.905750][  T141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.905885][  T141]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.906034][  T141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.906178][  T141]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.906346][  T141]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.906483][  T141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.906619][  T141]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.906758][  T141]  ? 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))
[    8.906893][  T141]  ? 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))
[    8.907037][  T141]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.907179][  T141]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.907373][  T141]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.907512][  T141]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.907652][  T141]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.907790][  T141]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.907931][  T141]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.908065][  T141]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.908261][  T141]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.908429][  T141]  ? move_addr_to_kernel (net/socket.c:258)
[    8.908570][  T141]  ___sys_sendmsg (net/socket.c:2752)
[    8.908705][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.908840][  T141]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.908992][  T141]  __sys_sendmsg (net/socket.c:2784)
[    8.909128][  T141]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.909328][  T141]  ? down_write_nested (kernel/locking/rwsem.c:1753)
[    8.909463][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.909602][  T141]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[    8.909737][  T141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.909871][  T141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.910012][  T141]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.910152][  T141]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.910344][  T141]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.910479][  T141]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.910647][  T141] RIP: 0033:0x7fbb9909508e
[    8.910788][  T141] 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
[    8.911366][  T141] RSP: 002b:00007ffff5995fd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.911571][  T141] RAX: ffffffffffffffda RBX: 00007ffff5996778 RCX: 00007fbb9909508e
[    8.911772][  T141] RDX: 0000000000000000 RSI: 00007ffff5996080 RDI: 0000000000000003
[    8.911978][  T141] RBP: 00007ffff5995fe0 R08: 0000000000000000 R09: 0000000000000000
[    8.912185][  T141] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10cfcd
[    8.912489][  T141] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffff5996750
| [    8.937045][  T144] ------------[ cut here ]------------
| [    8.937207][  T144] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/144
| [    8.937443][  T144] Modules linked in: veth netdevsim
| [    8.937849][  T144] Tainted: [W]=WARN
[    8.937958][  T144] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.938124][  T144] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.938308][  T144] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.938784][  T144] RSP: 0018:ffa00000004e7020 EFLAGS: 00010286
[    8.938962][  T144] RAX: 00000000ffffffa6 RBX: ff1100000d86c340 RCX: 1ff400000009cdca
[    8.939162][  T144] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d86c3f0
[    8.939367][  T144] RBP: ff11000005261000 R08: 1fe2200001b0d87f R09: ff1100000c528b58
[    8.939564][  T144] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[    8.939776][  T144] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    8.939994][  T144] FS:  00007f4a828fd840(0000) GS:ff11000092fbb000(0000) knlGS:0000000000000000
[    8.940234][  T144] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.940403][  T144] CR2: 000000000d18b988 CR3: 000000000b356006 CR4: 0000000000771ef0
[    8.940601][  T144] PKRU: 55555554
[    8.940700][  T144] Call Trace:
[    8.940798][  T144]  <TASK>
[    8.940868][  T144]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.941007][  T144]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.941110][  T144]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.941253][  T144]  __dev_notify_flags (net/core/dev.c:9787)
[    8.941389][  T144]  ? netif_change_name (net/core/dev.c:1495)
[    8.941522][  T144]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.941656][  T144]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    8.941787][  T144]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.941921][  T144]  ? 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))
[    8.942064][  T144]  netif_change_flags (net/core/dev.c:9820)
[    8.942205][  T144]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    8.942339][  T144]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.942481][  T144]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.942614][  T144]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.942780][  T144]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.942916][  T144]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.943055][  T144]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.943191][  T144]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.943332][  T144]  ? __kernel_text_address (kernel/extable.c:79)
[    8.943467][  T144]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.943603][  T144]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.943737][  T144]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.943872][  T144]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.944010][  T144]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.944154][  T144]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.944294][  T144]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.944428][  T144]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.944561][  T144]  ? __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)
[    8.944694][  T144]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.944827][  T144]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.944966][  T144]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.945103][  T144]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.945248][  T144]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.945385][  T144]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.945521][  T144]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.945653][  T144]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.945785][  T144]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.945919][  T144]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.946062][  T144]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.946203][  T144]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.946337][  T144]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.946471][  T144]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.946607][  T144]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.946740][  T144]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.946874][  T144]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.947016][  T144]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.947154][  T144]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.947305][  T144]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.947439][  T144]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.947579][  T144]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.947724][  T144]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.947859][  T144]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.948004][  T144]  ? 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))
[    8.948138][  T144]  ? 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))
[    8.948281][  T144]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.948416][  T144]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.948551][  T144]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.948686][  T144]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.948821][  T144]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.948962][  T144]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.949100][  T144]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.949244][  T144]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.949378][  T144]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.949543][  T144]  ? move_addr_to_kernel (net/socket.c:258)
[    8.949679][  T144]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.949812][  T144]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.949953][  T144]  ___sys_sendmsg (net/socket.c:2752)
[    8.950088][  T144]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.950260][  T144]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.950407][  T144]  __sys_sendmsg (net/socket.c:2784)
[    8.950541][  T144]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.950674][  T144]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    8.950842][  T144]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    8.950980][  T144]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.951115][  T144]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.951258][  T144]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.951390][  T144]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.951522][  T144]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.951687][  T144] RIP: 0033:0x7f4a82b3708e
[    8.951829][  T144] 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
[    8.952317][  T144] RSP: 002b:00007ffc8f710b10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.952518][  T144] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4a82b3708e
[    8.952722][  T144] RDX: 0000000000000000 RSI: 00007ffc8f710bc0 RDI: 0000000000000003
[    8.952920][  T144] RBP: 00007ffc8f710b20 R08: 0000000000000000 R09: 0000000000000000
[    8.953124][  T144] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10cfcd
[    8.953328][  T144] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc8f711290
| [    8.986045][  T145] ------------[ cut here ]------------
| [    8.986306][  T145] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/145
| [    8.986542][  T145] Modules linked in: veth netdevsim
| [    8.986957][  T145] Tainted: [W]=WARN
[    8.987059][  T145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.987234][  T145] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.987413][  T145] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.987888][  T145] RSP: 0018:ffa00000004d7020 EFLAGS: 00010286
[    8.988064][  T145] RAX: 00000000ffffffa6 RBX: ff1100000d86cdc0 RCX: 1ff400000009adca
[    8.988273][  T145] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d86ce70
[    8.988483][  T145] RBP: ff1100000a2e9000 R08: 1fe2200001b0d9cf R09: ff1100000c52ae58
[    8.988685][  T145] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[    8.988881][  T145] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    8.989087][  T145] FS:  00007fed07d57840(0000) GS:ff1100009303b000(0000) knlGS:0000000000000000
[    8.989336][  T145] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.989509][  T145] CR2: 00000000075d1988 CR3: 000000000c799005 CR4: 0000000000771ef0
[    8.989708][  T145] PKRU: 55555554
[    8.989808][  T145] Call Trace:
[    8.989907][  T145]  <TASK>
[    8.989990][  T145]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.990127][  T145]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.990238][  T145]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.990374][  T145]  __dev_notify_flags (net/core/dev.c:9787)
[    8.990511][  T145]  ? netif_change_name (net/core/dev.c:1495)
[    8.990644][  T145]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.990777][  T145]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    8.990911][  T145]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.991050][  T145]  ? 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))
[    8.991188][  T145]  netif_change_flags (net/core/dev.c:9820)
[    8.991328][  T145]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    8.991462][  T145]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.991596][  T145]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.991728][  T145]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.991891][  T145]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.992031][  T145]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.992167][  T145]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.992375][  T145]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.992508][  T145]  ? __kernel_text_address (kernel/extable.c:79)
[    8.992640][  T145]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.992783][  T145]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.992916][  T145]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.993055][  T145]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.993189][  T145]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.993386][  T145]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.993516][  T145]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.993646][  T145]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.993776][  T145]  ? __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)
[    8.993907][  T145]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.994044][  T145]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.994182][  T145]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.994383][  T145]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.994580][  T145]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.994713][  T145]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.994846][  T145]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.994983][  T145]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.995133][  T145]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.995411][  T145]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.995545][  T145]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.995676][  T145]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.995809][  T145]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.995946][  T145]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.996081][  T145]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.996256][  T145]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.996388][  T145]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.996525][  T145]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.996656][  T145]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.996789][  T145]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.996921][  T145]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.997061][  T145]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.997194][  T145]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.997332][  T145]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.997467][  T145]  ? 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))
[    8.997598][  T145]  ? 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))
[    8.997733][  T145]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.997875][  T145]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.998010][  T145]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.998147][  T145]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.998287][  T145]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.998419][  T145]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.998553][  T145]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.998687][  T145]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.998819][  T145]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.998989][  T145]  ? move_addr_to_kernel (net/socket.c:258)
[    8.999123][  T145]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.999261][  T145]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.999395][  T145]  ___sys_sendmsg (net/socket.c:2752)
[    8.999530][  T145]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.999694][  T145]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.999840][  T145]  __sys_sendmsg (net/socket.c:2784)
[    8.999976][  T145]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.000113][  T145]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.000289][  T145]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.000421][  T145]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.000553][  T145]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.000685][  T145]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.000816][  T145]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.000954][  T145]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.001119][  T145] RIP: 0033:0x7fed07f9108e
[    9.001269][  T145] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.001735][  T145] RSP: 002b:00007ffefda09f40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.001938][  T145] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fed07f9108e
[    9.002137][  T145] RDX: 0000000000000000 RSI: 00007ffefda09ff0 RDI: 0000000000000003
[    9.002341][  T145] RBP: 00007ffefda09f50 R08: 0000000000000000 R09: 0000000000000000
[    9.002538][  T145] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10cfcd
[    9.002736][  T145] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffefda0a6c0
| [    9.011656][   T90] ------------[ cut here ]------------
| [    9.011880][   T90] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/90
| [    9.012195][   T90] Modules linked in: veth netdevsim
| [    9.012833][   T90] Tainted: [W]=WARN
[    9.012979][   T90] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.013210][   T90] Workqueue: events_unbound linkwatch_event
[    9.013460][   T90] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.013671][   T90] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.014167][   T90] RSP: 0018:ffa00000005c79e0 EFLAGS: 00010286
[    9.014444][   T90] RAX: 00000000ffffffa6 RBX: ff1100000d86d6c0 RCX: 1ff40000000b8f02
[    9.014676][   T90] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d86d770
[    9.014908][   T90] RBP: ff1100000a2e9000 R08: 1fe2200001b0daef R09: ff1100000c44d1a8
[    9.015150][   T90] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[    9.015401][   T90] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.015633][   T90] FS:  0000000000000000(0000) GS:ff110000930bb000(0000) knlGS:0000000000000000
[    9.015900][   T90] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.016111][   T90] CR2: 000055ae534a4d5c CR3: 000000000291a006 CR4: 0000000000771ef0
[    9.016364][   T90] PKRU: 55555554
[    9.016506][   T90] Call Trace:
[    9.016646][   T90]  <TASK>
[    9.016759][   T90]  ? ip6_route_dev_notify (./include/net/net_namespace.h:419 (discriminator 1) ./include/linux/netdevice.h:2776 (discriminator 1) net/ipv6/route.c:6476 (discriminator 1))
[    9.016939][   T90]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.017115][   T90]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.017307][   T90]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.017453][   T90]  netif_state_change (net/core/dev.c:1605)
[    9.017627][   T90]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[    9.017829][   T90]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    9.018008][   T90]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    9.018182][   T90]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.018375][   T90]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    9.018547][   T90]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[    9.018721][   T90]  process_one_work (kernel/workqueue.c:3314)
[    9.018897][   T90]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.019074][   T90]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.019284][   T90]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.019459][   T90]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.019632][   T90]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    9.019806][   T90]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.019989][   T90]  kthread (kernel/kthread.c:436)
[    9.020133][   T90]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.020355][   T90]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.020537][   T90]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.020710][   T90]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.020916][   T90]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.021105][   T90]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.021306][   T90]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.023602][   T90] ------------[ cut here ]------------
| [    9.023772][   T90] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/90
| [    9.024089][   T90] Modules linked in: veth netdevsim
| [    9.024629][   T90] Tainted: [W]=WARN
[    9.024772][   T90] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.024977][   T90] Workqueue: events_unbound linkwatch_event
[    9.025252][   T90] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.025463][   T90] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.025948][   T90] RSP: 0018:ffa00000005c79e0 EFLAGS: 00010286
[    9.026154][   T90] RAX: 00000000ffffffa6 RBX: ff1100000d86dcc0 RCX: 1ff40000000b8f02
[    9.026403][   T90] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d86dd70
[    9.026635][   T90] RBP: ff11000005261000 R08: 1fe2200001b0dbaf R09: ff1100000c44d1a8
[    9.026878][   T90] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[    9.027120][   T90] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.027626][   T90] FS:  0000000000000000(0000) GS:ff110000930bb000(0000) knlGS:0000000000000000
[    9.027892][   T90] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.028106][   T90] CR2: 000055ae534a4d5c CR3: 000000003b939003 CR4: 0000000000771ef0
[    9.028366][   T90] PKRU: 55555554
[    9.028517][   T90] Call Trace:
[    9.028658][   T90]  <TASK>
[    9.028770][   T90]  ? ip6_route_dev_notify (./include/net/net_namespace.h:419 (discriminator 1) ./include/linux/netdevice.h:2776 (discriminator 1) net/ipv6/route.c:6476 (discriminator 1))
[    9.028956][   T90]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.029133][   T90]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.029327][   T90]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.029475][   T90]  netif_state_change (net/core/dev.c:1605)
[    9.029646][   T90]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[    9.029848][   T90]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    9.030032][   T90]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    9.030227][   T90]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.030403][   T90]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    9.030577][   T90]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[    9.030752][   T90]  process_one_work (kernel/workqueue.c:3314)
[    9.030935][   T90]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.031109][   T90]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.031307][   T90]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.031483][   T90]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.031656][   T90]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    9.031828][   T90]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.032008][   T90]  kthread (kernel/kthread.c:436)
[    9.032160][   T90]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.032385][   T90]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.032605][   T90]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.032781][   T90]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.032994][   T90]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.033171][   T90]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.033363][   T90]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.584982][  T178] ------------[ cut here ]------------
| [   15.585291][  T178] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bash/178
| [   15.585670][  T178] Modules linked in: veth netdevsim
| [   15.586465][  T178] Tainted: [W]=WARN
[   15.586723][  T178] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.587058][  T178] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.587370][  T178] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.588014][  T178] RSP: 0018:ffa00000006675a8 EFLAGS: 00010286
[   15.588295][  T178] RAX: 00000000ffffffa6 RBX: ff1100000575f9c0 RCX: 1ff40000000cce7b
[   15.588592][  T178] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000575fa70
[   15.588885][  T178] RBP: ff1100000ca92000 R08: 1fe2200000aebf4f R09: ff1100000c728c70
[   15.589216][  T178] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   15.589510][  T178] R13: 0000000000000000 R14: 0000000000000000 R15: ffa0000000667698
[   15.589808][  T178] FS:  00007fbc1a707740(0000) GS:ff110000930bb000(0000) knlGS:0000000000000000
[   15.590155][  T178] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.590431][  T178] CR2: 0000563811574358 CR3: 000000000c4c7002 CR4: 0000000000771ef0
[   15.590738][  T178] PKRU: 55555554
[   15.590910][  T178] Call Trace:
[   15.591093][  T178]  <TASK>
[   15.591251][  T178]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.591469][  T178]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.591646][  T178]  netif_close_many (net/core/dev.c:1804)
[   15.591859][  T178]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.592085][  T178]  ? __dev_close_many (net/core/dev.c:1781)
[   15.592324][  T178]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.592612][  T178]  netif_close_many_and_unlock (net/core/dev.c:12330)
[   15.592825][  T178]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[   15.593085][  T178]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[   15.593361][  T178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.593576][  T178]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   15.593792][  T178]  ? __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)
[   15.594011][  T178]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   15.594250][  T178]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.594502][  T178]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   15.594716][  T178]  ? netdev_run_todo (net/core/dev.c:11703)
[   15.594929][  T178]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   15.595155][  T178]  ? 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)
[   15.595385][  T178]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   15.595601][  T178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.595813][  T178]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   15.596039][  T178] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   15.596280][  T178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.596495][  T178] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   15.596749][  T178] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   15.597015][  T178] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[   15.597256][  T178]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[   15.597512][  T178]  bus_remove_device (drivers/base/bus.c:657)
[   15.597726][  T178]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[   15.597936][  T178]  ? device_remove_file (drivers/base/core.c:3073)
[   15.598165][  T178]  device_del (drivers/base/core.c:3895)
[   15.598356][  T178]  ? __device_link_del (./include/linux/kobject.h:89)
[   15.598571][  T178]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[   15.598790][  T178]  device_unregister (drivers/base/core.c:3936)
[   15.599012][  T178] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[   15.599293][  T178]  ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2))
[   15.599506][  T178]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[   15.599760][  T178]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[   15.599978][  T178]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[   15.600217][  T178]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[   15.600435][  T178]  ? kernfs_ops (fs/kernfs/file.c:128)
[   15.600609][  T178]  new_sync_write (fs/read_write.c:595)
[   15.600825][  T178]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.601047][  T178]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.601284][  T178]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.601497][  T178]  ? ksys_write (fs/read_write.c:740)
[   15.601714][  T178]  vfs_write (fs/read_write.c:688)
[   15.601891][  T178]  ksys_write (fs/read_write.c:740)
[   15.602078][  T178]  ? __ia32_sys_read (fs/read_write.c:724)
[   15.602314][  T178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.602525][  T178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.602741][  T178]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.602956][  T178]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.603183][  T178]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.603412][  T178]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.603662][  T178] RIP: 0033:0x7fbc1a77a08e
[   15.603885][  T178] 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
[   15.604534][  T178] RSP: 002b:00007fff796b2ce0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   15.604829][  T178] RAX: ffffffffffffffda RBX: 00007fbc1a8fc580 RCX: 00007fbc1a77a08e
[   15.605131][  T178] RDX: 0000000000000005 RSI: 0000563811573350 RDI: 0000000000000001
[   15.605442][  T178] RBP: 00007fff796b2cf0 R08: 0000000000000000 R09: 0000000000000000
[   15.605732][  T178] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[   15.606033][  T178] R13: 0000000000000005 R14: 0000563811573350 R15: 0000000000000000
| [   15.613098][  T178] ------------[ cut here ]------------
| [   15.613363][  T178] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bash/178
| [   15.613715][  T178] Modules linked in: veth netdevsim
| [   15.614440][  T178] Tainted: [W]=WARN
[   15.614667][  T178] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.614981][  T178] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.615318][  T178] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.615988][  T178] RSP: 0018:ffa0000000667728 EFLAGS: 00010286
[   15.616314][  T178] RAX: 00000000ffffffa6 RBX: ff1100000575e040 RCX: 1ff40000000cceab
[   15.616662][  T178] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000575e0f0
[   15.617025][  T178] RBP: ff1100000ca92000 R08: 1fe2200000aebc1f R09: ff1100000c728c48
[   15.617382][  T178] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.617724][  T178] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.618071][  T178] FS:  00007fbc1a707740(0000) GS:ff110000930bb000(0000) knlGS:0000000000000000
[   15.618475][  T178] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.618778][  T178] CR2: 0000563811574358 CR3: 000000000c4c7002 CR4: 0000000000771ef0
[   15.619129][  T178] PKRU: 55555554
[   15.619376][  T178] Call Trace:
[   15.619600][  T178]  <TASK>
[   15.619791][  T178]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.620117][  T178]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.620438][  T178]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   15.620705][  T178]  ? netdev_run_todo (net/core/dev.c:11703)
[   15.620978][  T178]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   15.621260][  T178]  ? 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)
[   15.621527][  T178]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   15.621791][  T178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.622064][  T178]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   15.622357][  T178] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   15.622627][  T178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.622890][  T178] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   15.623224][  T178] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   15.623527][  T178] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[   15.623791][  T178]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[   15.624104][  T178]  bus_remove_device (drivers/base/bus.c:657)
[   15.624395][  T178]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[   15.624659][  T178]  ? device_remove_file (drivers/base/core.c:3073)
[   15.624924][  T178]  device_del (drivers/base/core.c:3895)
[   15.625166][  T178]  ? __device_link_del (./include/linux/kobject.h:89)
[   15.625445][  T178]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[   15.625710][  T178]  device_unregister (drivers/base/core.c:3936)
[   15.625984][  T178] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[   15.626313][  T178]  ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2))
[   15.626580][  T178]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[   15.626880][  T178]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[   15.627154][  T178]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[   15.627433][  T178]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[   15.627703][  T178]  ? kernfs_ops (fs/kernfs/file.c:128)
[   15.627928][  T178]  new_sync_write (fs/read_write.c:595)
[   15.628221][  T178]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.628490][  T178]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.628754][  T178]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.628981][  T178]  ? ksys_write (fs/read_write.c:740)
[   15.629191][  T178]  vfs_write (fs/read_write.c:688)
[   15.629428][  T178]  ksys_write (fs/read_write.c:740)
[   15.629607][  T178]  ? __ia32_sys_read (fs/read_write.c:724)
[   15.629813][  T178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.630023][  T178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.630251][  T178]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.630453][  T178]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.630656][  T178]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.630858][  T178]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.631107][  T178] RIP: 0033:0x7fbc1a77a08e
[   15.631333][  T178] 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
[   15.631917][  T178] RSP: 002b:00007fff796b2ce0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   15.632220][  T178] RAX: ffffffffffffffda RBX: 00007fbc1a8fc580 RCX: 00007fbc1a77a08e
[   15.632492][  T178] RDX: 0000000000000005 RSI: 0000563811573350 RDI: 0000000000000001
[   15.632766][  T178] RBP: 00007fff796b2cf0 R08: 0000000000000000 R09: 0000000000000000
[   15.633050][  T178] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[   15.633345][  T178] R13: 0000000000000005 R14: 0000563811573350 R15: 0000000000000000
| [   15.707039][   T12] ------------[ cut here ]------------
| [   15.707965][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   15.708308][   T12] Modules linked in: veth netdevsim
| [   15.708762][   T12] Tainted: [W]=WARN
[   15.708858][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.709029][   T12] Workqueue: netns cleanup_net
[   15.709171][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.709440][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.709898][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   15.710072][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c5344c0 RCX: 1ff4000000018eaf
[   15.710360][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c534570
[   15.710546][   T12] RBP: ff11000005261000 R08: 1fe22000018a68af R09: ff11000001b051d0
[   15.710734][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   15.710922][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a2e9000
[   15.711126][   T12] FS:  0000000000000000(0000) GS:ff11000092fbb000(0000) knlGS:0000000000000000
[   15.711437][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.711597][   T12] CR2: 00007fdb6d34cf98 CR3: 0000000005f01002 CR4: 0000000000771ef0
[   15.711789][   T12] PKRU: 55555554
[   15.711884][   T12] Call Trace:
[   15.711986][   T12]  <TASK>
[   15.712054][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.712187][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.712383][   T12]  netif_close_many (net/core/dev.c:1804)
[   15.712510][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.712637][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.712847][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.712976][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   15.713106][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   15.713416][   T12]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   15.713545][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   15.713702][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.713841][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.714056][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.714184][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.714407][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.714534][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   15.714660][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.714786][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.714912][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.715044][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.715175][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.715382][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   15.715507][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.715637][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.715764][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.716040][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.716173][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.716369][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.716577][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.716705][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.716829][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.717050][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.717183][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.717405][   T12]  kthread (kernel/kthread.c:436)
[   15.717500][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.717655][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.717787][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.717916][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.718117][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.718328][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.718455][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.731292][   T12] ------------[ cut here ]------------
| [   15.731441][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   15.731687][   T12] Modules linked in: veth netdevsim
| [   15.732107][   T12] Tainted: [W]=WARN
[   15.732247][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.732405][   T12] Workqueue: netns cleanup_net
[   15.732538][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.732700][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.733221][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   15.733379][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c535840 RCX: 1ff4000000018eaf
[   15.733567][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c5358f0
[   15.733764][   T12] RBP: ff1100000a2e9000 R08: 1fe22000018a6b1f R09: ff11000001b051d0
[   15.733953][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   15.734155][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e8
[   15.734356][   T12] FS:  0000000000000000(0000) GS:ff11000092fbb000(0000) knlGS:0000000000000000
[   15.734576][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.734740][   T12] CR2: 00007fdb6d34cf98 CR3: 0000000005f01002 CR4: 0000000000771ef0
[   15.734954][   T12] PKRU: 55555554
[   15.735060][   T12] Call Trace:
[   15.735157][   T12]  <TASK>
[   15.735229][   T12]  ? ip6_route_dev_notify (./include/net/net_namespace.h:419 (discriminator 1) ./include/linux/netdevice.h:2776 (discriminator 1) net/ipv6/route.c:6476 (discriminator 1))
[   15.735358][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.735488][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.735617][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.735713][   T12]  netif_close_many (net/core/dev.c:1804)
[   15.735843][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.735975][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.736106][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.736242][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   15.736369][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   15.736523][   T12]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   15.736652][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   15.736807][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.736931][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.737089][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.737221][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.737353][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.737486][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   15.737613][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.737738][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.737863][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.737992][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.738120][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.738257][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   15.738385][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.738516][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.738643][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.738767][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.738894][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.739025][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.739152][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.739291][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.739415][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.739549][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.739678][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.739803][   T12]  kthread (kernel/kthread.c:436)
[   15.739896][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.740065][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.740190][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.740328][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.740486][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.740610][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.740735][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.743402][   T12] ------------[ cut here ]------------
| [   15.743526][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   15.743766][   T12] Modules linked in: veth netdevsim
| [   15.744225][   T12] Tainted: [W]=WARN
[   15.744343][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.744498][   T12] Workqueue: netns cleanup_net
[   15.744628][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.744788][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.745239][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   15.745391][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b0faac0 RCX: 1ff4000000018ed5
[   15.745570][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b0fab70
[   15.745749][   T12] RBP: ff11000005261000 R08: 1fe220000161f56f R09: ff11000001b051d0
[   15.745930][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.746114][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.746323][   T12] FS:  0000000000000000(0000) GS:ff11000092fbb000(0000) knlGS:0000000000000000
[   15.746538][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.746694][   T12] CR2: 00007fdb6d34cf98 CR3: 0000000005f01002 CR4: 0000000000771ef0
[   15.746878][   T12] PKRU: 55555554
[   15.746974][   T12] Call Trace:
[   15.747069][   T12]  <TASK>
[   15.747133][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.747299][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.747448][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.747570][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.747694][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.747818][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   15.747938][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.748065][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.748187][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.748315][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.748438][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.748561][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   15.748683][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.748808][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.748943][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.749074][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.749206][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.749328][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.749454][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.749580][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.749703][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.749830][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.749956][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.750085][   T12]  kthread (kernel/kthread.c:436)
[   15.750180][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.750341][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.750466][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.750590][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.750744][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.750866][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.750992][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.754515][   T12] ------------[ cut here ]------------
| [   15.754638][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   15.754881][   T12] Modules linked in: veth netdevsim
| [   15.755351][   T12] Tainted: [W]=WARN
[   15.755445][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.755600][   T12] Workqueue: netns cleanup_net
[   15.755729][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.755890][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.756363][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   15.756517][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b0fa7c0 RCX: 1ff4000000018ed5
[   15.756702][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b0fa870
[   15.756885][   T12] RBP: ff1100000a2e9000 R08: 1fe220000161f50f R09: ff11000001b051d0
[   15.757074][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.757285][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.757480][   T12] FS:  0000000000000000(0000) GS:ff11000092fbb000(0000) knlGS:0000000000000000
[   15.757696][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.757849][   T12] CR2: 00007fdb6d34cf98 CR3: 0000000005f01002 CR4: 0000000000771ef0
[   15.758037][   T12] PKRU: 55555554
[   15.758130][   T12] Call Trace:
[   15.758230][   T12]  <TASK>
[   15.758297][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.758455][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.758609][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.758738][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.758864][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.758992][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   15.759116][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.759369][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.759567][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.759696][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.759819][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.759942][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   15.760074][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.760281][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.760405][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.760526][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.760653][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.760774][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.760898][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.761054][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.761179][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.761381][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.761509][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.761631][   T12]  kthread (kernel/kthread.c:436)
[   15.761723][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.761874][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.762004][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.762128][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.762334][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.762480][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.762602][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.764967][   T12] ------------[ cut here ]------------
| [   15.765089][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   15.765340][   T12] Modules linked in: veth netdevsim
| [   15.765740][   T12] Tainted: [W]=WARN
[   15.765832][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.765988][   T12] Workqueue: netns cleanup_net
[   15.766121][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.766288][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.766716][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   15.766868][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b0fb540 RCX: 1ff4000000018ed5
[   15.767058][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b0fb5f0
[   15.767295][   T12] RBP: ff11000008c64000 R08: 1fe220000161f6bf R09: ff11000001b051d0
[   15.767520][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   15.767708][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.767892][   T12] FS:  0000000000000000(0000) GS:ff11000092fbb000(0000) knlGS:0000000000000000
[   15.768113][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.768325][   T12] CR2: 00007fdb6d34cf98 CR3: 0000000005f01002 CR4: 0000000000771ef0
[   15.768508][   T12] PKRU: 55555554
[   15.768599][   T12] Call Trace:
[   15.768695][   T12]  <TASK>
[   15.768763][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.768920][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.769080][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.769252][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.769380][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.769501][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   15.769622][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.769744][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.769867][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.769995][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.770118][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.770296][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   15.770416][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.770540][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   15.770663][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.770788][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.770913][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.771044][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.771171][   T12]  process_one_work (kernel/workqueue.c:3314)
[   15.771347][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.771468][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.771595][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.771722][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.771842][   T12]  kthread (kernel/kthread.c:436)
[   15.771933][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.772087][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.772277][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.772401][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.772553][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.772674][   T12]  ? kthread_affine_node (kernel/kthread.c:378)


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:rtnl_newlink_create
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:unregister_netdevice_queue:nsim_destroy:__nsim_dev_port_del
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:veth_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init
rtmsg_ifinfo_build_skb:rtnetlink_event:notifier_call_chain:netif_change_name:rtnl_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:netif_change_flags:rtnl_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_state_change:__linkwatch_run_queue:linkwatch_event
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:netif_close_many_and_unlock:unregister_netdevice_many_notify
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:nsim_init_netdevsim:nsim_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_close_many:unregister_netdevice_many_notify:default_device_exit_batch