======================================
| xx__-> [    8.591753][  T132] ------------[ cut here ]------------
| [    8.592015][  T132] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/132
| [    8.592268][  T132] Modules linked in: netdevsim
| [    8.592744][  T132] Tainted: [W]=WARN
[    8.592847][  T132] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.593050][  T132] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.593229][  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
[    8.593718][  T132] RSP: 0018:ffa00000006a7aa8 EFLAGS: 00010286
[    8.593904][  T132] RAX: 00000000ffffffa6 RBX: ff11000009515240 RCX: 1ff40000000d4f1b
[    8.594112][  T132] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000095152f0
[    8.594315][  T132] RBP: ff1100000a0e9000 R08: 1fe22000012a2a5f R09: ff1100000c988b80
[    8.594517][  T132] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.594719][  T132] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a0e9000
[    8.594937][  T132] FS:  00007f0d08adb840(0000) GS:ff1100009c93b000(0000) knlGS:0000000000000000
[    8.595182][  T132] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.595353][  T132] CR2: 0000000000479648 CR3: 000000000d1e7001 CR4: 0000000000771ef0
[    8.595606][  T132] PKRU: 55555554
[    8.595708][  T132] Call Trace:
[    8.595809][  T132]  <TASK>
[    8.595886][  T132]  ? ip6_route_dev_notify (net/ipv6/route.c:6484)
[    8.596032][  T132]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.596172][  T132]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.596320][  T132]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.596422][  T132]  register_netdevice (net/core/dev.c:11488)
[    8.596558][  T132]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.596742][  T132]  register_netdev (net/core/dev.c:11552)
[    8.596881][  T132]  loopback_net_init (drivers/net/loopback.c:218)
[    8.597025][  T132]  ops_init (net/core/net_namespace.c:137)
[    8.597134][  T132]  setup_net (net/core/net_namespace.c:446)
[    8.597242][  T132]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.597375][  T132]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.597510][  T132]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.597646][  T132]  copy_net_ns (net/core/net_namespace.c:579)
[    8.597780][  T132]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.597928][  T132]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.598069][  T132]  ksys_unshare (kernel/fork.c:3243)
[    8.598207][  T132]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.598347][  T132]  ? __ia32_sys_open (fs/open.c:1374)
[    8.598486][  T132]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.598620][  T132]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.598756][  T132]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.598902][  T132]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.599037][  T132]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.599175][  T132]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.599351][  T132] RIP: 0033:0x7f0d08d9dbcb
[    8.599493][  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
[    8.599989][  T132] RSP: 002b:00007ffee6e17d38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    8.600199][  T132] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f0d08d9dbcb
[    8.600398][  T132] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    8.600604][  T132] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    8.600805][  T132] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffee6e19f60
[    8.601016][  T132] R13: 0000000000000001 R14: 00007f0d08adb6f8 R15: 00007ffee6e1abaa
| [    8.672284][  T134] ------------[ cut here ]------------
| [    8.672531][  T134] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: tee/134
| [    8.672863][  T134] Modules linked in: netdevsim
| [    8.673473][  T134] Tainted: [W]=WARN
[    8.673600][  T134] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.673830][  T134] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.674102][  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
[    8.674688][  T134] RSP: 0018:ffa00000005e7500 EFLAGS: 00010286
[    8.674908][  T134] RAX: 00000000ffffffa6 RBX: ff1100000a9ad0c0 RCX: 1ff40000000bce66
[    8.675160][  T134] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a9ad170
[    8.675411][  T134] RBP: ff1100000c57a000 R08: 1fe2200001535a2f R09: ff1100000c62af48
[    8.675659][  T134] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    8.675918][  T134] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c57a000
[    8.676175][  T134] FS:  00007ff4daf7d740(0000) GS:ff1100009c83b000(0000) knlGS:0000000000000000
[    8.676467][  T134] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.676684][  T134] CR2: 00007f0afcf86580 CR3: 000000000bf50005 CR4: 0000000000771ef0
[    8.677702][  T134] PKRU: 55555554
[    8.677830][  T134] Call Trace:
[    8.677966][  T134]  <TASK>
[    8.678058][  T134]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.678234][  T134]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.678361][  T134]  register_netdevice (net/core/dev.c:11488)
[    8.678534][  T134]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.678740][  T134]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    8.678922][  T134] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    8.679145][  T134] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    8.679314][  T134] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    8.679523][  T134]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    8.679692][  T134]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    8.679912][  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))
[    8.680083][  T134]  ? static_obj (kernel/locking/lockdep.c:858)
[    8.680212][  T134]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.680381][  T134]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    8.680592][  T134] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    8.680762][  T134]  call_driver_probe (drivers/base/dd.c:629)
[    8.680941][  T134]  really_probe (drivers/base/dd.c:709)
[    8.681115][  T134]  ? driver_probe_device (drivers/base/dd.c:135)
[    8.681281][  T134]  __driver_probe_device (drivers/base/dd.c:871)
[    8.681447][  T134]  driver_probe_device (drivers/base/dd.c:901)
[    8.681613][  T134]  __device_attach_driver (drivers/base/dd.c:1029)
[    8.681782][  T134]  bus_for_each_drv (drivers/base/bus.c:500)
[    8.681959][  T134]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    8.682134][  T134]  __device_attach (drivers/base/dd.c:1101)
[    8.682301][  T134]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    8.682467][  T134]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    8.682675][  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)
[    8.682843][  T134]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    8.683020][  T134]  device_initial_probe (drivers/base/dd.c:1156)
[    8.683189][  T134]  bus_probe_device (drivers/base/bus.c:613)
[    8.683357][  T134]  device_add (drivers/base/core.c:3706)
[    8.683524][  T134]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    8.683731][  T134]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    8.683919][  T134]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    8.684097][  T134] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    8.684304][  T134]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.684470][  T134]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    8.684678][  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))
[    8.684847][  T134]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    8.685033][  T134]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    8.685203][  T134]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    8.685370][  T134]  ? kernfs_ops (fs/kernfs/file.c:128)
[    8.685498][  T134]  new_sync_write (fs/read_write.c:595)
[    8.685667][  T134]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.685833][  T134]  ? new_sync_read (./include/linux/ioprio.h:41)
[    8.686013][  T134]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.686182][  T134]  ? ksys_write (fs/read_write.c:740)
[    8.686352][  T134]  vfs_write (fs/read_write.c:688)
[    8.686479][  T134]  ksys_write (fs/read_write.c:740)
[    8.686606][  T134]  ? __ia32_sys_read (fs/read_write.c:724)
[    8.686772][  T134]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.686957][  T134]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.687145][  T134]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.687311][  T134]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.687480][  T134]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.687687][  T134] RIP: 0033:0x7ff4daff008e
[    8.687860][  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
[    8.688477][  T134] RSP: 002b:00007ffe2a1f5d80 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    8.688730][  T134] RAX: ffffffffffffffda RBX: 000055ece75563d0 RCX: 00007ff4daff008e
[    8.688991][  T134] RDX: 0000000000000007 RSI: 00007ffe2a1f5f20 RDI: 0000000000000003
[    8.689243][  T134] RBP: 00007ffe2a1f5d90 R08: 0000000000000000 R09: 0000000000000000
[    8.689490][  T134] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000007
[    8.689740][  T134] R13: 0000000000000007 R14: 00007ffe2a1f5f20 R15: 000055ece75563d0
| [    8.771541][  T138] ------------[ cut here ]------------
| [    8.771684][  T138] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/138
| [    8.771929][  T138] Modules linked in: netdevsim
| [    8.772420][  T138] Tainted: [W]=WARN
[    8.772520][  T138] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.772686][  T138] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.772871][  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
[    8.773393][  T138] RSP: 0018:ffa00000005e7038 EFLAGS: 00010286
[    8.773561][  T138] RAX: 00000000ffffffa6 RBX: ff1100000a9ad9c0 RCX: 1ff40000000bcdcd
[    8.773763][  T138] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a9ada70
[    8.773972][  T138] RBP: ff1100000c57a000 R08: 1fe2200001535b4f R09: ff1100000c61ae80
[    8.774174][  T138] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[    8.774370][  T138] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[    8.774568][  T138] FS:  00007f1d0cbbb840(0000) GS:ff1100009c7bb000(0000) knlGS:0000000000000000
[    8.774803][  T138] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.774984][  T138] CR2: 00000000050fe988 CR3: 000000000bf28005 CR4: 0000000000771ef0
[    8.775205][  T138] PKRU: 55555554
[    8.775305][  T138] Call Trace:
[    8.775402][  T138]  <TASK>
[    8.775471][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.775605][  T138]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[    8.775739][  T138]  notifier_call_chain (kernel/notifier.c:85)
[    8.775881][  T138]  netif_change_name (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:1509)
[    8.776023][  T138]  ? netdev_adjacent_rename_links (net/core/dev.c:9538)
[    8.776194][  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))
[    8.776327][  T138]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[    8.776461][  T138]  do_setlink.isra.0 (net/core/rtnetlink.c:3186)
[    8.776596][  T138]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.776728][  T138]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.776903][  T138]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.777039][  T138]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.777182][  T138]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.777313][  T138]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.777446][  T138]  ? __kernel_text_address (kernel/extable.c:79)
[    8.777579][  T138]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.777713][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.777845][  T138]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.778002][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.778140][  T138]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.778272][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.778405][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.778537][  T138]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.778671][  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)
[    8.778802][  T138]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.779000][  T138]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.779138][  T138]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.779270][  T138]  ? nla_get_range_signed (lib/nlattr.c:270)
[    8.779404][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.779551][  T138]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.779686][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.779817][  T138]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.780009][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.780146][  T138]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.780277][  T138]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.780414][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.780546][  T138]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.780678][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.780808][  T138]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.781002][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.781190][  T138]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.781322][  T138]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.781453][  T138]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.781600][  T138]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.781734][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.781866][  T138]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.782059][  T138]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.782192][  T138]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.782325][  T138]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.782464][  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))
[    8.782595][  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))
[    8.782729][  T138]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.782874][  T138]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.783079][  T138]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.783213][  T138]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.783347][  T138]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.783482][  T138]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.783616][  T138]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.783751][  T138]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.783885][  T138]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.784139][  T138]  ? move_addr_to_kernel (net/socket.c:258)
[    8.784272][  T138]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.784403][  T138]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.784535][  T138]  ___sys_sendmsg (net/socket.c:2752)
[    8.784667][  T138]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.784834][  T138]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.785067][  T138]  __sys_sendmsg (net/socket.c:2784)
[    8.785219][  T138]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.785354][  T138]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    8.785520][  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)
[    8.785652][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.785786][  T138]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.786009][  T138]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.786146][  T138]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.786278][  T138]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.786441][  T138] RIP: 0033:0x7f1d0cdf508e
[    8.786581][  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
[    8.787141][  T138] RSP: 002b:00007fff94d9e5a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.787340][  T138] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1d0cdf508e
[    8.787535][  T138] RDX: 0000000000000000 RSI: 00007fff94d9e650 RDI: 0000000000000003
[    8.787733][  T138] RBP: 00007fff94d9e5b0 R08: 0000000000000000 R09: 0000000000000000
[    8.788019][  T138] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ce16
[    8.788219][  T138] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff94d9ed20
| [    8.813236][  T139] ------------[ cut here ]------------
| [    8.813434][  T139] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/139
| [    8.813730][  T139] Modules linked in: netdevsim
| [    8.814806][  T139] Tainted: [W]=WARN
[    8.814980][  T139] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.815216][  T139] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.815444][  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
[    8.815989][  T139] RSP: 0018:ffa0000000667020 EFLAGS: 00010286
[    8.816219][  T139] RAX: 00000000ffffffa6 RBX: ff1100000c466c40 RCX: 1ff40000000ccdca
[    8.816470][  T139] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c466cf0
[    8.816718][  T139] RBP: ff1100000c57a000 R08: 1fe220000188cd9f R09: ff1100000c61d180
[    8.816991][  T139] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    8.817249][  T139] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    8.817500][  T139] FS:  00007f04c7061840(0000) GS:ff1100009c8bb000(0000) knlGS:0000000000000000
[    8.817787][  T139] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.818027][  T139] CR2: 00007f04c73311a0 CR3: 000000000d746006 CR4: 0000000000771ef0
[    8.818286][  T139] PKRU: 55555554
[    8.818437][  T139] Call Trace:
[    8.818587][  T139]  <TASK>
[    8.818706][  T139]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[    8.818918][  T139]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.819138][  T139]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.819291][  T139]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.819474][  T139]  __dev_notify_flags (net/core/dev.c:9787)
[    8.819660][  T139]  ? netif_change_name (net/core/dev.c:1495)
[    8.819844][  T139]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.820417][  T139]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    8.820603][  T139]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.820789][  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))
[    8.820998][  T139]  netif_change_flags (net/core/dev.c:9820)
[    8.821193][  T139]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.821380][  T139]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.821565][  T139]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.821785][  T139]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.821995][  T139]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.822190][  T139]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.822375][  T139]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.822558][  T139]  ? __kernel_text_address (kernel/extable.c:79)
[    8.822744][  T139]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.822954][  T139]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.823152][  T139]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.823338][  T139]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.823522][  T139]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.823705][  T139]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.823908][  T139]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.824101][  T139]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.824286][  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)
[    8.824470][  T139]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.824660][  T139]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.824846][  T139]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.825059][  T139]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.825251][  T139]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.825438][  T139]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.825621][  T139]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.825808][  T139]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.826013][  T139]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.826206][  T139]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.826394][  T139]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.826576][  T139]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.826762][  T139]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.826968][  T139]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.827162][  T139]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.827347][  T139]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.827531][  T139]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.827718][  T139]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.827933][  T139]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.828153][  T139]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.828342][  T139]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.828528][  T139]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.828714][  T139]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.828921][  T139]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.829119][  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))
[    8.829306][  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))
[    8.829493][  T139]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.829681][  T139]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.829864][  T139]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.830076][  T139]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.830266][  T139]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.830452][  T139]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.830644][  T139]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.830830][  T139]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.831037][  T139]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.831260][  T139]  ? move_addr_to_kernel (net/socket.c:258)
[    8.831447][  T139]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.831634][  T139]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.831821][  T139]  ___sys_sendmsg (net/socket.c:2752)
[    8.832031][  T139]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.832263][  T139]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.832462][  T139]  __sys_sendmsg (net/socket.c:2784)
[    8.832648][  T139]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.832831][  T139]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    8.833359][  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)
[    8.833546][  T139]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.833736][  T139]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.833944][  T139]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.834137][  T139]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.834323][  T139]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.834538][  T139] RIP: 0033:0x7f04c729b08e
[    8.834730][  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
[    8.835311][  T139] RSP: 002b:00007ffd3417ab30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.835567][  T139] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f04c729b08e
[    8.835817][  T139] RDX: 0000000000000000 RSI: 00007ffd3417abe0 RDI: 0000000000000003
[    8.836094][  T139] RBP: 00007ffd3417ab40 R08: 0000000000000000 R09: 0000000000000000
[    8.836349][  T139] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ce16
[    8.836598][  T139] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd3417b2b0
| [    8.910476][  T141] ------------[ cut here ]------------
| [    8.910679][  T141] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/141
| [    8.910978][  T141] Modules linked in: veth netdevsim
| [    8.911442][  T141] Tainted: [W]=WARN
[    8.911548][  T141] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.911724][  T141] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.911921][  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
[    8.912479][  T141] RSP: 0018:ffa00000005e6e30 EFLAGS: 00010286
[    8.912655][  T141] RAX: 00000000ffffffa6 RBX: ff1100000d4c53c0 RCX: 1ff40000000bcd8c
[    8.912862][  T141] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d4c5470
[    8.913086][  T141] RBP: ff1100000cabc000 R08: 1fe2200001a98a8f R09: ff1100000a2a2e80
[    8.913294][  T141] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.913503][  T141] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d472e00
[    8.913714][  T141] FS:  00007fe18d27d840(0000) GS:ff1100009c7bb000(0000) knlGS:0000000000000000
[    8.913972][  T141] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.914154][  T141] CR2: 000000000042ebe0 CR3: 000000000bf29001 CR4: 0000000000771ef0
[    8.914366][  T141] PKRU: 55555554
[    8.914470][  T141] Call Trace:
[    8.914573][  T141]  <TASK>
[    8.914645][  T141]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[    8.914818][  T141]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.914972][  T141]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.915084][  T141]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.915225][  T141]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.915363][  T141]  __dev_notify_flags (net/core/dev.c:9787)
[    8.915503][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.915642][  T141]  ? netif_change_name (net/core/dev.c:1495)
[    8.915782][  T141]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[    8.916007][  T141]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[    8.916152][  T141]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.916291][  T141]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    8.916429][  T141]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.916566][  T141]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[    8.916706][  T141] veth_newlink (drivers/net/veth.c:1871) veth
[    8.916847][  T141]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[    8.917029][  T141]  ? kasan_save_stack (mm/kasan/common.c:57)
[    8.917180][  T141]  ? kasan_save_track (mm/kasan/common.c:78)
[    8.917318][  T141]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    8.917473][  T141]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    8.917612][  T141]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    8.917755][  T141]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    8.917911][  T141]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.918055][  T141]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[    8.918197][  T141]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    8.918336][  T141]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    8.918476][  T141]  ? __dev_get_by_name (net/core/dev.c:883)
[    8.918615][  T141]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    8.918759][  T141]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    8.918927][  T141]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.919077][  T141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.919217][  T141]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.919357][  T141]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.919497][  T141]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.919636][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.919786][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.919936][  T141]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.920078][  T141]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.920216][  T141]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.920353][  T141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.920491][  T141]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.920630][  T141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.920768][  T141]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.920920][  T141]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.921061][  T141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.921200][  T141]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.921342][  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))
[    8.921479][  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))
[    8.921618][  T141]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.921758][  T141]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.921920][  T141]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.922071][  T141]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.922211][  T141]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.922350][  T141]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.922498][  T141]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.922636][  T141]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.922774][  T141]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.923008][  T141]  ? move_addr_to_kernel (net/socket.c:258)
[    8.923156][  T141]  ___sys_sendmsg (net/socket.c:2752)
[    8.923293][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.923431][  T141]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.923584][  T141]  __sys_sendmsg (net/socket.c:2784)
[    8.923721][  T141]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.923858][  T141]  ? down_write_nested (kernel/locking/rwsem.c:1753)
[    8.924008][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.924154][  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)
[    8.924293][  T141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.924432][  T141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.924572][  T141]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.924709][  T141]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.924847][  T141]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.924998][  T141]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.925174][  T141] RIP: 0033:0x7fe18d4b708e
[    8.925318][  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
[    8.925806][  T141] RSP: 002b:00007fffa94434c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.926029][  T141] RAX: ffffffffffffffda RBX: 00007fffa9443c68 RCX: 00007fe18d4b708e
[    8.926243][  T141] RDX: 0000000000000000 RSI: 00007fffa9443570 RDI: 0000000000000003
[    8.926449][  T141] RBP: 00007fffa94434d0 R08: 0000000000000000 R09: 0000000000000000
[    8.926655][  T141] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ce16
[    8.926863][  T141] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffa9443c40
| [    8.936570][  T141] ------------[ cut here ]------------
| [    8.936722][  T141] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/141
| [    8.936988][  T141] Modules linked in: veth netdevsim
| [    8.937407][  T141] Tainted: [W]=WARN
[    8.937511][  T141] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.937682][  T141] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.937861][  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
[    8.938423][  T141] RSP: 0018:ffa00000005e71b0 EFLAGS: 00010286
[    8.938600][  T141] RAX: 00000000ffffffa6 RBX: ff1100000936bb40 RCX: 1ff40000000bcdfc
[    8.938804][  T141] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000936bbf0
[    8.939020][  T141] RBP: ff11000008859000 R08: 1fe220000126d77f R09: ff1100000a2a2e80
[    8.939227][  T141] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.939430][  T141] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc0589b20
[    8.939633][  T141] FS:  00007fe18d27d840(0000) GS:ff1100009c7bb000(0000) knlGS:0000000000000000
[    8.939877][  T141] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.940056][  T141] CR2: 000000000042ebe0 CR3: 000000000bf29001 CR4: 0000000000771ef0
[    8.940260][  T141] PKRU: 55555554
[    8.940360][  T141] Call Trace:
[    8.940462][  T141]  <TASK>
[    8.940534][  T141]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.940671][  T141]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.940775][  T141]  __dev_notify_flags (net/core/dev.c:9787)
[    8.940924][  T141]  ? netif_change_name (net/core/dev.c:1495)
[    8.941065][  T141]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    8.941201][  T141]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.941338][  T141]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    8.941476][  T141]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    8.941612][  T141]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    8.941747][  T141]  ? __dev_get_by_name (net/core/dev.c:883)
[    8.941888][  T141]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    8.942039][  T141]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    8.942182][  T141]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.942319][  T141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.942454][  T141]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.942591][  T141]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.942725][  T141]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.942860][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.943074][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.943211][  T141]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.943351][  T141]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.943486][  T141]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.943622][  T141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.943759][  T141]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.943960][  T141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.944100][  T141]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.944245][  T141]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.944383][  T141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.944536][  T141]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.944673][  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))
[    8.944809][  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))
[    8.945010][  T141]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.945151][  T141]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.945287][  T141]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.945423][  T141]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.945560][  T141]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.945697][  T141]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.945834][  T141]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.946055][  T141]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.946192][  T141]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.946360][  T141]  ? move_addr_to_kernel (net/socket.c:258)
[    8.946502][  T141]  ___sys_sendmsg (net/socket.c:2752)
[    8.946637][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.946772][  T141]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.946966][  T141]  __sys_sendmsg (net/socket.c:2784)
[    8.947108][  T141]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.947254][  T141]  ? down_write_nested (kernel/locking/rwsem.c:1753)
[    8.947389][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.947527][  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)
[    8.947662][  T141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.947798][  T141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.947950][  T141]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.948095][  T141]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.948229][  T141]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.948363][  T141]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.948533][  T141] RIP: 0033:0x7fe18d4b708e
[    8.948674][  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
[    8.949171][  T141] RSP: 002b:00007fffa94434c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.949375][  T141] RAX: ffffffffffffffda RBX: 00007fffa9443c68 RCX: 00007fe18d4b708e
[    8.949576][  T141] RDX: 0000000000000000 RSI: 00007fffa9443570 RDI: 0000000000000003
[    8.949777][  T141] RBP: 00007fffa94434d0 R08: 0000000000000000 R09: 0000000000000000
[    8.949995][  T141] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ce16
[    8.950202][  T141] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffa9443c40
| [    8.991856][  T143] ------------[ cut here ]------------
| [    8.992481][  T143] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/143
| [    8.992761][  T143] Modules linked in: veth netdevsim
| [    8.993341][  T143] Tainted: [W]=WARN
[    8.993490][  T143] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.993707][  T143] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.993949][  T143] 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
[    8.994468][  T143] RSP: 0018:ffa00000006b7020 EFLAGS: 00010286
[    8.994688][  T143] RAX: 00000000ffffffa6 RBX: ff11000004ebe640 RCX: 1ff40000000d6dca
[    8.994954][  T143] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004ebe6f0
[    8.995209][  T143] RBP: ff11000008859000 R08: 1fe22000009d7cdf R09: ff11000004ad8b58
[    8.995467][  T143] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    8.995717][  T143] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    8.995988][  T143] FS:  00007ff9360cd840(0000) GS:ff1100009c8bb000(0000) knlGS:0000000000000000
[    8.996280][  T143] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.996496][  T143] CR2: 000000000d530988 CR3: 000000000d73f002 CR4: 0000000000771ef0
[    8.996743][  T143] PKRU: 55555554
[    8.996914][  T143] Call Trace:
[    8.997070][  T143]  <TASK>
[    8.997189][  T143]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.997376][  T143]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.997526][  T143]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.997706][  T143]  __dev_notify_flags (net/core/dev.c:9787)
[    8.997912][  T143]  ? netif_change_name (net/core/dev.c:1495)
[    8.998115][  T143]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.998298][  T143]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    8.998481][  T143]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.998664][  T143]  ? 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))
[    8.998848][  T143]  netif_change_flags (net/core/dev.c:9820)
[    8.999056][  T143]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    8.999257][  T143]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.999446][  T143]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.999630][  T143]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.999843][  T143]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.000130][  T143]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.000318][  T143]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.000501][  T143]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.000683][  T143]  ? __kernel_text_address (kernel/extable.c:79)
[    9.000865][  T143]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.001077][  T143]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.001259][  T143]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.001441][  T143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.001623][  T143]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.001803][  T143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.002008][  T143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.002195][  T143]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.002376][  T143]  ? __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)
[    9.002559][  T143]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.002742][  T143]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.002946][  T143]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.003138][  T143]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.003321][  T143]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.003504][  T143]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.003684][  T143]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.003865][  T143]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.004073][  T143]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.004255][  T143]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.004440][  T143]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.004621][  T143]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.004803][  T143]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.005006][  T143]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.005194][  T143]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.005379][  T143]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.005561][  T143]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.005742][  T143]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.005943][  T143]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.006135][  T143]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.006317][  T143]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.006502][  T143]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.006682][  T143]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.006867][  T143]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.007079][  T143]  ? 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))
[    9.007261][  T143]  ? 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))
[    9.007445][  T143]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.007629][  T143]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.007810][  T143]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.008012][  T143]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.008202][  T143]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.008384][  T143]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.008568][  T143]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.008750][  T143]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.008954][  T143]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.009175][  T143]  ? move_addr_to_kernel (net/socket.c:258)
[    9.009358][  T143]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.009540][  T143]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.009723][  T143]  ___sys_sendmsg (net/socket.c:2752)
[    9.009927][  T143]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.010151][  T143]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.010345][  T143]  __sys_sendmsg (net/socket.c:2784)
[    9.010526][  T143]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.010706][  T143]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.010946][  T143]  ? 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)
[    9.011138][  T143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.011320][  T143]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.011500][  T143]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.011681][  T143]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.011864][  T143]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.012102][  T143] RIP: 0033:0x7ff93630708e
[    9.012289][  T143] 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
[    9.012796][  T143] RSP: 002b:00007ffe59595b70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.013064][  T143] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff93630708e
[    9.013310][  T143] RDX: 0000000000000000 RSI: 00007ffe59595c20 RDI: 0000000000000003
[    9.013558][  T143] RBP: 00007ffe59595b80 R08: 0000000000000000 R09: 0000000000000000
[    9.013803][  T143] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ce16
[    9.014071][  T143] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe595962f0
| [    9.040631][  T144] ------------[ cut here ]------------
| [    9.040817][  T144] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/144
| [    9.041638][  T144] Modules linked in: veth netdevsim
| [    9.042326][  T144] Tainted: [W]=WARN
[    9.042475][  T144] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.042687][  T144] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.042932][  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
[    9.043461][  T144] RSP: 0018:ffa0000000657020 EFLAGS: 00010286
[    9.043681][  T144] RAX: 00000000ffffffa6 RBX: ff11000004ebfcc0 RCX: 1ff40000000cadca
[    9.043953][  T144] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004ebfd70
[    9.044209][  T144] RBP: ff1100000cabc000 R08: 1fe22000009d7faf R09: ff1100000ca6ae58
[    9.044457][  T144] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    9.044707][  T144] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.044977][  T144] FS:  00007fb3e477c840(0000) GS:ff1100009c8bb000(0000) knlGS:0000000000000000
[    9.045265][  T144] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.045505][  T144] CR2: 000000000715f988 CR3: 000000000a883004 CR4: 0000000000771ef0
[    9.045753][  T144] PKRU: 55555554
[    9.045927][  T144] Call Trace:
[    9.046081][  T144]  <TASK>
[    9.046200][  T144]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.046382][  T144]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.046535][  T144]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.046715][  T144]  __dev_notify_flags (net/core/dev.c:9787)
[    9.046919][  T144]  ? netif_change_name (net/core/dev.c:1495)
[    9.047113][  T144]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.047302][  T144]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.047483][  T144]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.047667][  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))
[    9.047856][  T144]  netif_change_flags (net/core/dev.c:9820)
[    9.048063][  T144]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.048247][  T144]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.048431][  T144]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.048618][  T144]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.048832][  T144]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.049034][  T144]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.049224][  T144]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.049406][  T144]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.049588][  T144]  ? __kernel_text_address (kernel/extable.c:79)
[    9.049775][  T144]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.049982][  T144]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.050172][  T144]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.050355][  T144]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.050540][  T144]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.050722][  T144]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.050929][  T144]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.051122][  T144]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.051308][  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)
[    9.051487][  T144]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.051670][  T144]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.051853][  T144]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.052066][  T144]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.052252][  T144]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.052437][  T144]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.052617][  T144]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.052804][  T144]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.053010][  T144]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.053199][  T144]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.053385][  T144]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.053564][  T144]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.053748][  T144]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.053949][  T144]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.054147][  T144]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.054334][  T144]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.054518][  T144]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.054701][  T144]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.054903][  T144]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.055095][  T144]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.055276][  T144]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.055460][  T144]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.055646][  T144]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.055828][  T144]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.056042][  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))
[    9.056234][  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))
[    9.056418][  T144]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.056606][  T144]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.056788][  T144]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.056999][  T144]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.057205][  T144]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.057387][  T144]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.057571][  T144]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.057754][  T144]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.057962][  T144]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.058184][  T144]  ? move_addr_to_kernel (net/socket.c:258)
[    9.058371][  T144]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.058557][  T144]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.058740][  T144]  ___sys_sendmsg (net/socket.c:2752)
[    9.058944][  T144]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.059168][  T144]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.059361][  T144]  __sys_sendmsg (net/socket.c:2784)
[    9.059547][  T144]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.059729][  T144]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.059972][  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)
[    9.060160][  T144]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.060348][  T144]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.060529][  T144]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.060711][  T144]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.060914][  T144]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.061135][  T144] RIP: 0033:0x7fb3e49b608e
[    9.061329][  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
[    9.061839][  T144] RSP: 002b:00007fff96eb3040 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.062116][  T144] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb3e49b608e
[    9.062365][  T144] RDX: 0000000000000000 RSI: 00007fff96eb30f0 RDI: 0000000000000003
[    9.062608][  T144] RBP: 00007fff96eb3050 R08: 0000000000000000 R09: 0000000000000000
[    9.062855][  T144] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ce16
[    9.063131][  T144] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff96eb37c0
| [    9.065759][  T101] ------------[ cut here ]------------
| [    9.065939][  T101] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/101
| [    9.066190][  T101] Modules linked in: veth netdevsim
| [    9.066629][  T101] Tainted: [W]=WARN
[    9.066721][  T101] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.066881][  T101] Workqueue: events_unbound linkwatch_event
[    9.067084][  T101] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.067251][  T101] 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
[    9.067698][  T101] RSP: 0018:ffa00000006379e0 EFLAGS: 00010286
[    9.067856][  T101] RAX: 00000000ffffffa6 RBX: ff1100000be3edc0 RCX: 1ff40000000c6f02
[    9.068096][  T101] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000be3ee70
[    9.068282][  T101] RBP: ff1100000cabc000 R08: 1fe22000017c7dcf R09: ff1100000c870ba8
[    9.068463][  T101] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[    9.068644][  T101] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.068827][  T101] FS:  0000000000000000(0000) GS:ff1100009c83b000(0000) knlGS:0000000000000000
[    9.069078][  T101] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.069232][  T101] CR2: 00007f0afcf86580 CR3: 000000000bd9d006 CR4: 0000000000771ef0
[    9.069466][  T101] PKRU: 55555554
[    9.069556][  T101] Call Trace:
[    9.069646][  T101]  <TASK>
[    9.069710][  T101]  ? 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))
[    9.069834][  T101]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.069975][  T101]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.070100][  T101]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.070199][  T101]  netif_state_change (net/core/dev.c:1605)
[    9.070321][  T101]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[    9.070471][  T101]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    9.070592][  T101]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    9.070714][  T101]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.070836][  T101]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    9.070984][  T101]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[    9.071112][  T101]  process_one_work (kernel/workqueue.c:3314)
[    9.071242][  T101]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.071367][  T101]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.071493][  T101]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.071615][  T101]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.071735][  T101]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    9.071857][  T101]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.071992][  T101]  kthread (kernel/kthread.c:436)
[    9.072087][  T101]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.072235][  T101]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.072357][  T101]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.072478][  T101]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.072630][  T101]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.072759][  T101]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.072919][  T101]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.074677][  T101] ------------[ cut here ]------------
| [    9.074797][  T101] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/101
| [    9.075169][  T101] Modules linked in: veth netdevsim
| [    9.075715][  T101] Tainted: [W]=WARN
[    9.075925][  T101] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.076105][  T101] Workqueue: events_unbound linkwatch_event
[    9.076267][  T101] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.076427][  T101] 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
[    9.076962][  T101] RSP: 0018:ffa00000006379e0 EFLAGS: 00010286
[    9.077208][  T101] RAX: 00000000ffffffa6 RBX: ff1100000be3f3c0 RCX: 1ff40000000c6f02
[    9.077388][  T101] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000be3f470
[    9.077576][  T101] RBP: ff11000008859000 R08: 1fe22000017c7e8f R09: ff1100000c870ba8
[    9.077832][  T101] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[    9.078156][  T101] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.078341][  T101] FS:  0000000000000000(0000) GS:ff1100009c83b000(0000) knlGS:0000000000000000
[    9.078555][  T101] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.078707][  T101] CR2: 00007f0afcf86580 CR3: 000000000bd9d006 CR4: 0000000000771ef0
[    9.078981][  T101] PKRU: 55555554
[    9.079076][  T101] Call Trace:
[    9.079172][  T101]  <TASK>
[    9.079235][  T101]  ? 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))
[    9.079358][  T101]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.079481][  T101]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.079601][  T101]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.079697][  T101]  netif_state_change (net/core/dev.c:1605)
[    9.079819][  T101]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[    9.079981][  T101]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    9.080106][  T101]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    9.080230][  T101]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.080359][  T101]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    9.080484][  T101]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[    9.080623][  T101]  process_one_work (kernel/workqueue.c:3314)
[    9.080746][  T101]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.080866][  T101]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.081004][  T101]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.081131][  T101]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.081251][  T101]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    9.081376][  T101]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.081496][  T101]  kthread (kernel/kthread.c:436)
[    9.081608][  T101]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.081767][  T101]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.081904][  T101]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.082108][  T101]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.082259][  T101]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.082380][  T101]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.082509][  T101]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.084121][  T185] ------------[ cut here ]------------
| [   15.084413][  T185] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: python3/185
| [   15.084742][  T185] Modules linked in: dummy veth netdevsim
| [   15.085355][  T185] Tainted: [W]=WARN
[   15.085512][  T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.085735][  T185] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.086074][  T185] 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
[   15.086734][  T185] RSP: 0018:ffa00000005773a0 EFLAGS: 00010286
[   15.086980][  T185] RAX: 00000000ffffffa6 RBX: ff11000008e48040 RCX: 1ff40000000aee3a
[   15.087428][  T185] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008e480f0
[   15.087683][  T185] RBP: ff1100000a1a4000 R08: 1fe22000011c901f R09: ff1100000c45d1a8
[   15.088028][  T185] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.088300][  T185] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   15.088564][  T185] FS:  00007f535caf6bc0(0000) GS:ff1100009c8bb000(0000) knlGS:0000000000000000
[   15.088860][  T185] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.089114][  T185] CR2: 00007f535b475030 CR3: 0000000004d51006 CR4: 0000000000771ef0
[   15.089480][  T185] PKRU: 55555554
[   15.089635][  T185] Call Trace:
[   15.089790][  T185]  <TASK>
[   15.089934][  T185]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.090134][  T185]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.090345][  T185]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   15.090629][  T185]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.090786][  T185]  ? rtnl_newlink_create (./include/linux/netdevice.h:2830 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/core/rtnetlink.c:3912)
[   15.091021][  T185]  __dev_notify_flags (net/core/dev.c:9787)
[   15.091222][  T185]  ? netif_change_name (net/core/dev.c:1495)
[   15.091411][  T185]  ? register_netdevice (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:48 net/core/dev.c:11475)
[   15.091604][  T185]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   15.091795][  T185]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   15.092008][  T185]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   15.092203][  T185]  ? __dev_get_by_name (net/core/dev.c:883)
[   15.092492][  T185]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   15.092692][  T185]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   15.092886][  T185]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   15.093162][  T185]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.093352][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.093543][  T185]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.093733][  T185]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   15.094036][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.094267][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.094658][  T185]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   15.094855][  T185]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   15.095166][  T185]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   15.095385][  T185]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.095575][  T185]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   15.095766][  T185]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.095979][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   15.096285][  T185]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   15.096600][  T185]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.096796][  T185]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.097015][  T185]  ? 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))
[   15.097214][  T185]  ? 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))
[   15.097407][  T185]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.097597][  T185]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.097791][  T185]  ? netlink_autobind.isra.0 (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:815 (discriminator 2))
[   15.098006][  T185]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[   15.098203][  T185]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   15.098395][  T185]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   15.098584][  T185]  ? _copy_from_user (./include/linux/instrumented.h:146 ./include/linux/uaccess.h:184 lib/usercopy.c:18)
[   15.098794][  T185]  ? netlink_setsockopt (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:28 net/netlink/af_netlink.c:1715)
[   15.099099][  T185]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   15.099298][  T185]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   15.099522][  T185]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   15.099683][  T185]  ? put_user_ifreq (./arch/x86/include/asm/compat.h:94 (discriminator 1))
[   15.099986][  T185]  ? __sys_setsockopt (net/socket.c:2406)
[   15.100203][  T185]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   15.100397][  T185]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.100709][  T185]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.100948][  T185]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.101245][  T185]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.101445][  T185]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.101630][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.101819][  T185]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.102064][  T185] RIP: 0033:0x7f535cc7f08e
[   15.102261][  T185] 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
[   15.102948][  T185] RSP: 002b:00007ffeddbb62b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   15.103219][  T185] RAX: ffffffffffffffda RBX: 00007ffeddbb63c0 RCX: 00007f535cc7f08e
[   15.103473][  T185] RDX: 000000000000003c RSI: 00007f535c18fd70 RDI: 0000000000000003
[   15.103731][  T185] RBP: 00007ffeddbb62c0 R08: 0000000000000000 R09: 0000000000000000
[   15.104012][  T185] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f535c191b00
[   15.104455][  T185] R13: 00007ffeddbb63c0 R14: 00007f535c2ac140 R15: 0000000000000002
| [   16.079616][  T192] ------------[ cut here ]------------
| [   16.079871][  T192] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: python3/192
| [   16.080246][  T192] Modules linked in: dummy veth netdevsim
| [   16.080762][  T192] Tainted: [W]=WARN
[   16.080922][  T192] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.081152][  T192] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.081369][  T192] 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
[   16.081868][  T192] RSP: 0018:ffa0000000647388 EFLAGS: 00010286
[   16.082134][  T192] RAX: 00000000ffffffa6 RBX: ff1100000a9adb40 RCX: 1ff40000000c8e37
[   16.082375][  T192] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a9adbf0
[   16.082614][  T192] RBP: ff1100000a1a4000 R08: 1fe2200001535b7f R09: ff1100000c978b58
[   16.082849][  T192] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   16.083114][  T192] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   16.083374][  T192] FS:  00007f5be8f8fbc0(0000) GS:ff1100009c8bb000(0000) knlGS:0000000000000000
[   16.083646][  T192] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.083855][  T192] CR2: 00007f5be791d030 CR3: 000000000d0b8001 CR4: 0000000000771ef0
[   16.084117][  T192] PKRU: 55555554
[   16.084265][  T192] Call Trace:
[   16.084410][  T192]  <TASK>
[   16.084526][  T192]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   16.084738][  T192]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   16.084966][  T192]  ? 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)
[   16.085155][  T192]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.085332][  T192]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   16.085540][  T192]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   16.085720][  T192]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   16.085911][  T192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.086110][  T192]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.086291][  T192]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   16.086473][  T192]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.086648][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.086841][  T192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.087064][  T192]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.087245][  T192]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.087421][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.087623][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.087808][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.088007][  T192]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   16.088187][  T192]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.088364][  T192]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.088539][  T192]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.088713][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.088906][  T192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.089093][  T192]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.089273][  T192]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.089449][  T192]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.089627][  T192]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.089807][  T192]  ? 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))
[   16.090005][  T192]  ? 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))
[   16.090188][  T192]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.090368][  T192]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.090544][  T192]  ? netlink_autobind.isra.0 (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:815 (discriminator 2))
[   16.090718][  T192]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[   16.090908][  T192]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.091122][  T192]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.091301][  T192]  ? _copy_from_user (./include/linux/instrumented.h:146 ./include/linux/uaccess.h:184 lib/usercopy.c:18)
[   16.091480][  T192]  ? netlink_setsockopt (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:28 net/netlink/af_netlink.c:1715)
[   16.091669][  T192]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   16.091864][  T192]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   16.092069][  T192]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   16.092221][  T192]  ? put_user_ifreq (./arch/x86/include/asm/compat.h:94 (discriminator 1))
[   16.092402][  T192]  ? __sys_setsockopt (net/socket.c:2406)
[   16.092589][  T192]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   16.092770][  T192]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.092999][  T192]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.093183][  T192]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   16.093361][  T192]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.093537][  T192]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.093708][  T192]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.093885][  T192]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.094120][  T192] RIP: 0033:0x7f5be911808e
[   16.094327][  T192] 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
[   16.094821][  T192] RSP: 002b:00007fffac00f450 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   16.095168][  T192] RAX: ffffffffffffffda RBX: 00007fffac00f560 RCX: 00007f5be911808e
[   16.095402][  T192] RDX: 000000000000002c RSI: 00007f5be868d040 RDI: 0000000000000003
[   16.095640][  T192] RBP: 00007fffac00f460 R08: 0000000000000000 R09: 0000000000000000
[   16.095872][  T192] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f5be8639b00
[   16.096130][  T192] R13: 00007fffac00f560 R14: 00007f5be8745140 R15: 0000000000000002
| [   19.522163][  T218] ------------[ cut here ]------------
| [   19.522461][  T218] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bash/218
| [   19.522841][  T218] Modules linked in: dummy veth netdevsim
| [   19.523521][  T218] Tainted: [W]=WARN
[   19.523697][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.523989][  T218] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.524265][  T218] 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
[   19.524991][  T218] RSP: 0018:ffa00000007575a8 EFLAGS: 00010286
[   19.525260][  T218] RAX: 00000000ffffffa6 RBX: ff110000095147c0 RCX: 1ff40000000eae7b
[   19.525554][  T218] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009514870
[   19.525849][  T218] RBP: ff1100000c57a000 R08: 1fe22000012a290f R09: ff1100000be62f70
[   19.526172][  T218] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   19.526470][  T218] R13: 0000000000000000 R14: 0000000000000000 R15: ffa0000000757698
[   19.526766][  T218] FS:  00007fd6ca19a740(0000) GS:ff1100009c8bb000(0000) knlGS:0000000000000000
[   19.527266][  T218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.527610][  T218] CR2: 000055e3cca82338 CR3: 000000000c6c4001 CR4: 0000000000771ef0
[   19.527993][  T218] PKRU: 55555554
[   19.528255][  T218] Call Trace:
[   19.528497][  T218]  <TASK>
[   19.528704][  T218]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.529019][  T218]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.529276][  T218]  netif_close_many (net/core/dev.c:1804)
[   19.529560][  T218]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.529863][  T218]  ? __dev_close_many (net/core/dev.c:1781)
[   19.530195][  T218]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.530466][  T218]  netif_close_many_and_unlock (net/core/dev.c:12330)
[   19.530680][  T218]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[   19.530948][  T218]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[   19.531219][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.531435][  T218]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   19.531652][  T218]  ? __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)
[   19.531869][  T218]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   19.532115][  T218]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.532370][  T218]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   19.532585][  T218]  ? netdev_run_todo (net/core/dev.c:11703)
[   19.532800][  T218]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   19.533040][  T218]  ? 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)
[   19.533266][  T218]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   19.533484][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.533699][  T218]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   19.533931][  T218] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   19.534171][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.534389][  T218] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   19.534645][  T218] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   19.534915][  T218] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[   19.535152][  T218]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[   19.535410][  T218]  bus_remove_device (drivers/base/bus.c:657)
[   19.535625][  T218]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[   19.535838][  T218]  ? device_remove_file (drivers/base/core.c:3073)
[   19.536156][  T218]  device_del (drivers/base/core.c:3895)
[   19.536334][  T218]  ? __device_link_del (./include/linux/kobject.h:89)
[   19.536550][  T218]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[   19.536769][  T218]  device_unregister (drivers/base/core.c:3936)
[   19.537008][  T218] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[   19.537274][  T218]  ? 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))
[   19.537490][  T218]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[   19.537747][  T218]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[   19.537985][  T218]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[   19.538212][  T218]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[   19.538445][  T218]  ? kernfs_ops (fs/kernfs/file.c:128)
[   19.538624][  T218]  new_sync_write (fs/read_write.c:595)
[   19.538842][  T218]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.539088][  T218]  ? new_sync_read (./include/linux/ioprio.h:41)
[   19.539309][  T218]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.539523][  T218]  ? ksys_write (fs/read_write.c:740)
[   19.539742][  T218]  vfs_write (fs/read_write.c:688)
[   19.539933][  T218]  ksys_write (fs/read_write.c:740)
[   19.540129][  T218]  ? __ia32_sys_read (fs/read_write.c:724)
[   19.540344][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.540557][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.540771][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.541009][  T218]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.541231][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.541451][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.541702][  T218] RIP: 0033:0x7fd6ca20d08e
[   19.541940][  T218] 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
[   19.542576][  T218] RSP: 002b:00007fffd8681190 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   19.542871][  T218] RAX: ffffffffffffffda RBX: 00007fd6ca38f580 RCX: 00007fd6ca20d08e
[   19.543192][  T218] RDX: 0000000000000005 RSI: 000055e3cca81330 RDI: 0000000000000001
[   19.543484][  T218] RBP: 00007fffd86811a0 R08: 0000000000000000 R09: 0000000000000000
[   19.543776][  T218] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[   19.544102][  T218] R13: 0000000000000005 R14: 000055e3cca81330 R15: 0000000000000000
| [   19.550328][  T218] ------------[ cut here ]------------
| [   19.550583][  T218] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: bash/218
| [   19.550903][  T218] Modules linked in: dummy veth netdevsim
| [   19.551421][  T218] Tainted: [W]=WARN
[   19.551538][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.551732][  T218] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.551942][  T218] 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
[   19.552554][  T218] RSP: 0018:ffa0000000757728 EFLAGS: 00010286
[   19.552786][  T218] RAX: 00000000ffffffa6 RBX: ff110000095150c0 RCX: 1ff40000000eaeab
[   19.553026][  T218] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009515170
[   19.553262][  T218] RBP: ff1100000c57a000 R08: 1fe22000012a2a2f R09: ff1100000be62f48
[   19.553493][  T218] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.553723][  T218] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.553968][  T218] FS:  00007fd6ca19a740(0000) GS:ff1100009c83b000(0000) knlGS:0000000000000000
[   19.554246][  T218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.554438][  T218] CR2: 0000559c09e84a68 CR3: 000000000c6c4003 CR4: 0000000000771ef0
[   19.554672][  T218] PKRU: 55555554
[   19.554787][  T218] Call Trace:
[   19.554907][  T218]  <TASK>
[   19.554995][  T218]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.555196][  T218]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.555387][  T218]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   19.555540][  T218]  ? netdev_run_todo (net/core/dev.c:11703)
[   19.555694][  T218]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   19.555848][  T218]  ? 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)
[   19.556014][  T218]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   19.556169][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.556321][  T218]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   19.556476][  T218] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   19.556633][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.556791][  T218] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   19.556995][  T218] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   19.557192][  T218] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[   19.557347][  T218]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[   19.557540][  T218]  bus_remove_device (drivers/base/bus.c:657)
[   19.557698][  T218]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[   19.557850][  T218]  ? device_remove_file (drivers/base/core.c:3073)
[   19.558017][  T218]  device_del (drivers/base/core.c:3895)
[   19.558138][  T218]  ? __device_link_del (./include/linux/kobject.h:89)
[   19.558294][  T218]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[   19.558446][  T218]  device_unregister (drivers/base/core.c:3936)
[   19.558598][  T218] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[   19.558793][  T218]  ? 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))
[   19.558960][  T218]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[   19.559157][  T218]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[   19.559311][  T218]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[   19.559465][  T218]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[   19.559618][  T218]  ? kernfs_ops (fs/kernfs/file.c:128)
[   19.559734][  T218]  new_sync_write (fs/read_write.c:595)
[   19.559898][  T218]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.560060][  T218]  ? new_sync_read (./include/linux/ioprio.h:41)
[   19.560215][  T218]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.560368][  T218]  ? ksys_write (fs/read_write.c:740)
[   19.560526][  T218]  vfs_write (fs/read_write.c:688)
[   19.560645][  T218]  ksys_write (fs/read_write.c:740)
[   19.560762][  T218]  ? __ia32_sys_read (fs/read_write.c:724)
[   19.560925][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.561086][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.561243][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.561395][  T218]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.561549][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.561701][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.561898][  T218] RIP: 0033:0x7fd6ca20d08e
[   19.562068][  T218] 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
[   19.562738][  T218] RSP: 002b:00007fffd8681190 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   19.562983][  T218] RAX: ffffffffffffffda RBX: 00007fd6ca38f580 RCX: 00007fd6ca20d08e
[   19.563220][  T218] RDX: 0000000000000005 RSI: 000055e3cca81330 RDI: 0000000000000001
[   19.563451][  T218] RBP: 00007fffd86811a0 R08: 0000000000000000 R09: 0000000000000000
[   19.563791][  T218] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[   19.564030][  T218] R13: 0000000000000005 R14: 000055e3cca81330 R15: 0000000000000000
| [   19.619172][   T69] ------------[ cut here ]------------
| [   19.619410][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/69
| [   19.619733][   T69] Modules linked in: dummy veth netdevsim
| [   19.620332][   T69] Tainted: [W]=WARN
[   19.620480][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.620702][   T69] Workqueue: netns cleanup_net
[   19.620911][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.621205][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 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
[   19.621712][   T69] RSP: 0018:ffa00000004a7748 EFLAGS: 00010286
[   19.621944][   T69] RAX: 00000000ffffffa6 RBX: ff11000008e484c0 RCX: 1ff4000000094eaf
[   19.622206][   T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008e48570
[   19.622444][   T69] RBP: ff11000008859000 R08: 1fe22000011c90af R09: ff11000008aad1d0
[   19.622683][   T69] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   19.622940][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000cabc000
[   19.623203][   T69] FS:  0000000000000000(0000) GS:ff1100009c8bb000(0000) knlGS:0000000000000000
[   19.623474][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.623683][   T69] CR2: 000055e3cca82338 CR3: 0000000004b0b003 CR4: 0000000000771ef0
[   19.623940][   T69] PKRU: 55555554
[   19.624100][   T69] Call Trace:
[   19.624247][   T69]  <TASK>
[   19.624363][   T69]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.624604][   T69]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.624754][   T69]  netif_close_many (net/core/dev.c:1804)
[   19.624947][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.625142][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.625320][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.625498][   T69]  ? __dev_close_many (net/core/dev.c:1781)
[   19.625675][   T69]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   19.625910][   T69]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   19.626108][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   19.626318][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.626497][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.626747][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.626941][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.627173][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.627351][   T69]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   19.627528][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.627707][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.627995][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.628184][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.628364][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.628626][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   19.628883][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.629154][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   19.629334][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.629513][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.629717][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.629946][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.630144][   T69]  process_one_work (kernel/workqueue.c:3314)
[   19.630340][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.630518][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.630700][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.630980][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.631167][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   19.631348][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.631606][   T69]  kthread (kernel/kthread.c:436)
[   19.631755][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.632068][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.632252][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.632435][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.632643][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.632822][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.633062][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.636447][   T69] ------------[ cut here ]------------
| [   19.636621][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/69
| [   19.636952][   T69] Modules linked in: dummy veth netdevsim
| [   19.637496][   T69] Tainted: [W]=WARN
[   19.637640][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.637848][   T69] Workqueue: netns cleanup_net
[   19.638050][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.638269][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 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
[   19.638847][   T69] RSP: 0018:ffa00000004a7748 EFLAGS: 00010286
[   19.639081][   T69] RAX: 00000000ffffffa6 RBX: ff11000008e493c0 RCX: 1ff4000000094eaf
[   19.639321][   T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008e49470
[   19.639559][   T69] RBP: ff1100000cabc000 R08: 1fe22000011c928f R09: ff11000008aad1d0
[   19.639795][   T69] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   19.640145][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004a77e8
[   19.640481][   T69] FS:  0000000000000000(0000) GS:ff1100009c8bb000(0000) knlGS:0000000000000000
[   19.640755][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.640983][   T69] CR2: 000055e3cca82338 CR3: 0000000004b0b003 CR4: 0000000000771ef0
[   19.641229][   T69] PKRU: 55555554
[   19.641372][   T69] Call Trace:
[   19.641516][   T69]  <TASK>
[   19.641711][   T69]  ? 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))
[   19.641902][   T69]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.642103][   T69]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.642284][   T69]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.642434][   T69]  netif_close_many (net/core/dev.c:1804)
[   19.642610][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.642784][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.642995][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.643182][   T69]  ? __dev_close_many (net/core/dev.c:1781)
[   19.643359][   T69]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   19.643649][   T69]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   19.643827][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   19.644148][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.644325][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.644610][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.644785][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.644987][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.645179][   T69]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   19.645354][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.645610][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.645866][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.646151][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.646330][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.646588][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   19.646764][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.646972][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   19.647158][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.647334][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.647512][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.647689][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.647867][   T69]  process_one_work (kernel/workqueue.c:3314)
[   19.648156][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.648337][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.648519][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.648712][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.648903][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   19.649178][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.649354][   T69]  kthread (kernel/kthread.c:436)
[   19.649516][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.649724][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.649919][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.650112][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.650322][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.650578][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.650754][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.654511][   T69] ------------[ cut here ]------------
| [   19.654760][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/69
| [   19.655496][   T69] Modules linked in: dummy veth netdevsim
| [   19.656123][   T69] Tainted: [W]=WARN
[   19.656314][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.656562][   T69] Workqueue: netns cleanup_net
[   19.656790][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.657086][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 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
[   19.657621][   T69] RSP: 0018:ffa00000004a7878 EFLAGS: 00010286
[   19.657886][   T69] RAX: 00000000ffffffa6 RBX: ff1100000c500c40 RCX: 1ff4000000094ed5
[   19.658236][   T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c500cf0
[   19.658516][   T69] RBP: ff11000008859000 R08: 1fe22000018a019f R09: ff11000008aad1d0
[   19.658791][   T69] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.659098][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.659456][   T69] FS:  0000000000000000(0000) GS:ff1100009c8bb000(0000) knlGS:0000000000000000
[   19.659844][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.660117][   T69] CR2: 000055e3cca82338 CR3: 0000000004b0b003 CR4: 0000000000771ef0
[   19.660397][   T69] PKRU: 55555554
[   19.660584][   T69] Call Trace:
[   19.660846][   T69]  <TASK>
[   19.661026][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.661289][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.661539][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.661756][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.662027][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.662420][   T69]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   19.662588][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.662837][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.663134][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.663313][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.663491][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.663667][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   19.663839][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.664041][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   19.664225][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.664397][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.664571][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.664821][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.665111][   T69]  process_one_work (kernel/workqueue.c:3314)
[   19.665292][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.665462][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.665640][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.665817][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.666013][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   19.666197][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.666372][   T69]  kthread (kernel/kthread.c:436)
[   19.666513][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.666719][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.666908][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.667099][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.667304][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.667479][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.667654][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.672234][   T69] ------------[ cut here ]------------
| [   19.672417][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/69
| [   19.672708][   T69] Modules linked in: dummy veth netdevsim
| [   19.673248][   T69] Tainted: [W]=WARN
[   19.673401][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.673605][   T69] Workqueue: netns cleanup_net
[   19.673784][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.674096][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 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
[   19.674638][   T69] RSP: 0018:ffa00000004a7878 EFLAGS: 00010286
[   19.674908][   T69] RAX: 00000000ffffffa6 RBX: ff110000054da340 RCX: 1ff4000000094ed5
[   19.675211][   T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000054da3f0
[   19.675489][   T69] RBP: ff1100000cabc000 R08: 1fe2200000a9b47f R09: ff11000008aad1d0
[   19.675765][   T69] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.676073][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.676357][   T69] FS:  0000000000000000(0000) GS:ff1100009c8bb000(0000) knlGS:0000000000000000
[   19.676666][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.676927][   T69] CR2: 000055e3cca82338 CR3: 0000000004b0b003 CR4: 0000000000771ef0
[   19.677227][   T69] PKRU: 55555554
[   19.677411][   T69] Call Trace:
[   19.677599][   T69]  <TASK>
[   19.677758][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.678059][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.678371][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.678591][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.678815][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.679091][   T69]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   19.679317][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.679537][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.679759][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.680006][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.680236][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.680470][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   19.680698][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.680936][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   19.681177][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.681409][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.681631][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.681851][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.682136][   T69]  process_one_work (kernel/workqueue.c:3314)
[   19.682346][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.682518][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.682701][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.682876][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.683075][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   19.683268][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.683444][   T69]  kthread (kernel/kthread.c:436)
[   19.683588][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.683801][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.684001][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.684189][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.684401][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.684575][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.684750][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.687550][   T69] ------------[ cut here ]------------
| [   19.687718][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/69
| [   19.688705][   T69] Modules linked in: dummy veth netdevsim
| [   19.689312][   T69] Tainted: [W]=WARN
[   19.689454][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.689682][   T69] Workqueue: netns cleanup_net
[   19.689869][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.690113][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 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
[   19.690606][   T69] RSP: 0018:ffa00000004a7878 EFLAGS: 00010286
[   19.690818][   T69] RAX: 00000000ffffffa6 RBX: ff110000054da940 RCX: 1ff4000000094ed5
[   19.691075][   T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000054da9f0
[   19.691312][   T69] RBP: ff1100000a0e9000 R08: 1fe2200000a9b53f R09: ff11000008aad1d0
[   19.691541][   T69] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.691771][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.692031][   T69] FS:  0000000000000000(0000) GS:ff1100009c8bb000(0000) knlGS:0000000000000000
[   19.692300][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.692505][   T69] CR2: 000055e3cca82338 CR3: 000000002af39002 CR4: 0000000000771ef0
[   19.692737][   T69] PKRU: 55555554
[   19.692877][   T69] Call Trace:
[   19.693041][   T69]  <TASK>
[   19.693161][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.693369][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.693568][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.693772][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.693972][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.694152][   T69]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   19.694322][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.694494][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.694667][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.694857][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.695060][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.695239][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   19.695407][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.695582][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   19.695756][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.695941][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.696129][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.696304][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.696477][   T69]  process_one_work (kernel/workqueue.c:3314)
[   19.696653][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.696824][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.697020][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.697200][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.697372][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   19.697548][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.697748][   T69]  kthread (kernel/kthread.c:436)
[   19.697968][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.698177][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.698349][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.698521][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.698723][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.698908][   T69]  ? 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:unregister_netdevice_many_notify:rtnl_dellink:rtnetlink_rcv_msg:netlink_rcv_skb
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