======================================
| xx__-> [    7.907846][  T132] ------------[ cut here ]------------
| [    7.908041][  T132] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/132
| [    7.908281][  T132] Modules linked in: netdevsim
| [    7.908746][  T132] Tainted: [W]=WARN
[    7.908841][  T132] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.908998][  T132] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    7.909161][  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
[    7.909705][  T132] RSP: 0018:ffa00000006a7aa8 EFLAGS: 00010286
[    7.909866][  T132] RAX: 00000000ffffffa6 RBX: ff1100000bcce4c0 RCX: 1ff40000000d4f1b
[    7.910052][  T132] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000bcce570
[    7.910240][  T132] RBP: ff1100000c709000 R08: 1fe2200001799caf R09: ff1100000bfaae80
[    7.910547][  T132] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    7.910737][  T132] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c709000
[    7.910925][  T132] FS:  00007f3b73540840(0000) GS:ff1100007b73b000(0000) knlGS:0000000000000000
[    7.911148][  T132] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.911427][  T132] CR2: 0000000000479648 CR3: 000000000d202003 CR4: 0000000000771ef0
[    7.911617][  T132] PKRU: 55555554
[    7.911711][  T132] Call Trace:
[    7.911804][  T132]  <TASK>
[    7.911870][  T132]  ? ip6_route_dev_notify (net/ipv6/route.c:6484)
[    7.912080][  T132]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    7.912289][  T132]  ? notifier_call_chain (kernel/notifier.c:85)
[    7.912418][  T132]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    7.912514][  T132]  register_netdevice (net/core/dev.c:11488)
[    7.912644][  T132]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    7.912801][  T132]  register_netdev (net/core/dev.c:11552)
[    7.912926][  T132]  loopback_net_init (drivers/net/loopback.c:218)
[    7.913056][  T132]  ops_init (net/core/net_namespace.c:137)
[    7.913234][  T132]  setup_net (net/core/net_namespace.c:446)
[    7.913330][  T132]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    7.913458][  T132]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    7.913671][  T132]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    7.913797][  T132]  copy_net_ns (net/core/net_namespace.c:579)
[    7.913923][  T132]  create_new_namespaces (kernel/nsproxy.c:132)
[    7.914050][  T132]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    7.914258][  T132]  ksys_unshare (kernel/fork.c:3243)
[    7.914383][  T132]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    7.914511][  T132]  ? __ia32_sys_open (fs/open.c:1374)
[    7.914641][  T132]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    7.914765][  T132]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    7.914889][  T132]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    7.915012][  T132]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    7.915224][  T132]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    7.915349][  T132]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    7.915508][  T132] RIP: 0033:0x7f3b73802bcb
[    7.915643][  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
[    7.916084][  T132] RSP: 002b:00007ffeae8a51a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    7.916273][  T132] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f3b73802bcb
[    7.916637][  T132] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    7.916824][  T132] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    7.917008][  T132] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffeae8a73d0
[    7.917196][  T132] R13: 0000000000000001 R14: 00007f3b735406f8 R15: 00007ffeae8a8baa
| [    7.966422][  T134] ------------[ cut here ]------------
| [    7.966637][  T134] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: tee/134
| [    7.966957][  T134] Modules linked in: netdevsim
| [    7.967528][  T134] Tainted: [W]=WARN
[    7.967654][  T134] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.967874][  T134] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    7.968077][  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
[    7.968935][  T134] RSP: 0018:ffa0000000657500 EFLAGS: 00010286
[    7.969132][  T134] RAX: 00000000ffffffa6 RBX: ff1100000bccf840 RCX: 1ff40000000cae66
[    7.969363][  T134] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000bccf8f0
[    7.969606][  T134] RBP: ff1100000c61a000 R08: 1fe2200001799f1f R09: ff1100000cb62f48
[    7.969837][  T134] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    7.970069][  T134] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c61a000
[    7.970301][  T134] FS:  00007fab61a13740(0000) GS:ff1100007b5bb000(0000) knlGS:0000000000000000
[    7.970583][  T134] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.970779][  T134] CR2: 00007fab61a7c580 CR3: 000000000ad31002 CR4: 0000000000771ef0
[    7.971014][  T134] PKRU: 55555554
[    7.971130][  T134] Call Trace:
[    7.971248][  T134]  <TASK>
[    7.971328][  T134]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    7.971493][  T134]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    7.971616][  T134]  register_netdevice (net/core/dev.c:11488)
[    7.971781][  T134]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    7.971973][  T134]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    7.972133][  T134] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    7.972333][  T134] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    7.972496][  T134] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    7.972694][  T134]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    7.972851][  T134]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    7.973048][  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))
[    7.973204][  T134]  ? static_obj (kernel/locking/lockdep.c:858)
[    7.973323][  T134]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    7.973487][  T134]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    7.973686][  T134] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    7.973845][  T134]  call_driver_probe (drivers/base/dd.c:629)
[    7.974002][  T134]  really_probe (drivers/base/dd.c:709)
[    7.974159][  T134]  ? driver_probe_device (drivers/base/dd.c:135)
[    7.974314][  T134]  __driver_probe_device (drivers/base/dd.c:871)
[    7.974477][  T134]  driver_probe_device (drivers/base/dd.c:901)
[    7.974637][  T134]  __device_attach_driver (drivers/base/dd.c:1029)
[    7.974792][  T134]  bus_for_each_drv (drivers/base/bus.c:500)
[    7.974948][  T134]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    7.975106][  T134]  __device_attach (drivers/base/dd.c:1101)
[    7.975261][  T134]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    7.975420][  T134]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    7.975618][  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)
[    7.975773][  T134]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    7.975930][  T134]  device_initial_probe (drivers/base/dd.c:1156)
[    7.976084][  T134]  bus_probe_device (drivers/base/bus.c:613)
[    7.976240][  T134]  device_add (drivers/base/core.c:3706)
[    7.976396][  T134]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    7.976599][  T134]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    7.976754][  T134]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    7.976912][  T134] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    7.977106][  T134]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    7.977261][  T134]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    7.977460][  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))
[    7.977620][  T134]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    7.977775][  T134]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    7.977929][  T134]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    7.978084][  T134]  ? kernfs_ops (fs/kernfs/file.c:128)
[    7.978201][  T134]  new_sync_write (fs/read_write.c:595)
[    7.978357][  T134]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    7.978517][  T134]  ? new_sync_read (./include/linux/ioprio.h:41)
[    7.978675][  T134]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    7.978829][  T134]  ? ksys_write (fs/read_write.c:740)
[    7.978987][  T134]  vfs_write (fs/read_write.c:688)
[    7.979107][  T134]  ksys_write (fs/read_write.c:740)
[    7.979225][  T134]  ? __ia32_sys_read (fs/read_write.c:724)
[    7.979382][  T134]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    7.979543][  T134]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    7.979705][  T134]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    7.979859][  T134]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    7.980014][  T134]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    7.980208][  T134] RIP: 0033:0x7fab61a8608e
[    7.980371][  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
[    7.980925][  T134] RSP: 002b:00007ffd027df9c0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    7.981158][  T134] RAX: ffffffffffffffda RBX: 000055666de2a3d0 RCX: 00007fab61a8608e
[    7.981389][  T134] RDX: 0000000000000007 RSI: 00007ffd027dfb60 RDI: 0000000000000003
[    7.981630][  T134] RBP: 00007ffd027df9d0 R08: 0000000000000000 R09: 0000000000000000
[    7.981860][  T134] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000007
[    7.982091][  T134] R13: 0000000000000007 R14: 00007ffd027dfb60 R15: 000055666de2a3d0
| [    8.063691][  T138] ------------[ cut here ]------------
| [    8.063858][  T138] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/138
| [    8.064120][  T138] Modules linked in: netdevsim
| [    8.064638][  T138] Tainted: [W]=WARN
[    8.064777][  T138] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.065024][  T138] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.065231][  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
[    8.065733][  T138] RSP: 0018:ffa0000000657038 EFLAGS: 00010286
[    8.065936][  T138] RAX: 00000000ffffffa6 RBX: ff11000004dc59c0 RCX: 1ff40000000cadcd
[    8.066164][  T138] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004dc5a70
[    8.066392][  T138] RBP: ff1100000c61a000 R08: 1fe22000009b8b4f R09: ff11000008bdd180
[    8.066682][  T138] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[    8.066911][  T138] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[    8.067142][  T138] FS:  00007f63872c6840(0000) GS:ff1100007b6bb000(0000) knlGS:0000000000000000
[    8.067447][  T138] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.067659][  T138] CR2: 00000000095e2988 CR3: 000000000f445006 CR4: 0000000000771ef0
[    8.067892][  T138] PKRU: 55555554
[    8.068030][  T138] Call Trace:
[    8.068168][  T138]  <TASK>
[    8.068277][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.068544][  T138]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[    8.068800][  T138]  notifier_call_chain (kernel/notifier.c:85)
[    8.069053][  T138]  netif_change_name (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:1509)
[    8.069273][  T138]  ? netdev_adjacent_rename_links (net/core/dev.c:9538)
[    8.069546][  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))
[    8.069722][  T138]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[    8.069894][  T138]  do_setlink.isra.0 (net/core/rtnetlink.c:3186)
[    8.070065][  T138]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.070234][  T138]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.070445][  T138]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.070624][  T138]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.070799][  T138]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.070966][  T138]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.071136][  T138]  ? __kernel_text_address (kernel/extable.c:79)
[    8.071307][  T138]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.071488][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.071667][  T138]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.071836][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.072007][  T138]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.072173][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.072341][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.072520][  T138]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.072698][  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)
[    8.072869][  T138]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.073038][  T138]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.073208][  T138]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.073378][  T138]  ? nla_get_range_signed (lib/nlattr.c:270)
[    8.073569][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.073741][  T138]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.073911][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.074077][  T138]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.074246][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.074426][  T138]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.074606][  T138]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.074778][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.074945][  T138]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.075113][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.075282][  T138]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.075465][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.075638][  T138]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.075806][  T138]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.075978][  T138]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.076146][  T138]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.076316][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.076497][  T138]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.076677][  T138]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.076850][  T138]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.077021][  T138]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.077193][  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))
[    8.077362][  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))
[    8.077547][  T138]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.077724][  T138]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.077893][  T138]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.078063][  T138]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.078233][  T138]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.078452][  T138]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.078636][  T138]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.078808][  T138]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.078975][  T138]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.079172][  T138]  ? move_addr_to_kernel (net/socket.c:258)
[    8.079344][  T138]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.079525][  T138]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.079705][  T138]  ___sys_sendmsg (net/socket.c:2752)
[    8.079877][  T138]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.080077][  T138]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.080257][  T138]  __sys_sendmsg (net/socket.c:2784)
[    8.080439][  T138]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.080615][  T138]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    8.080819][  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)
[    8.080988][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.081160][  T138]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.081330][  T138]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.081511][  T138]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.081688][  T138]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.081886][  T138] RIP: 0033:0x7f638750008e
[    8.082061][  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
[    8.082555][  T138] RSP: 002b:00007ffda8b5d990 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.082794][  T138] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f638750008e
[    8.083020][  T138] RDX: 0000000000000000 RSI: 00007ffda8b5da40 RDI: 0000000000000003
[    8.083248][  T138] RBP: 00007ffda8b5d9a0 R08: 0000000000000000 R09: 0000000000000000
[    8.083491][  T138] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c525
[    8.083728][  T138] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffda8b5e110
| [    8.114636][  T139] ------------[ cut here ]------------
| [    8.114779][  T139] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/139
| [    8.115026][  T139] Modules linked in: netdevsim
| [    8.115420][  T139] Tainted: [W]=WARN
[    8.115516][  T139] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.115677][  T139] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.115842][  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
[    8.116287][  T139] RSP: 0018:ffa0000000727020 EFLAGS: 00010286
[    8.116453][  T139] RAX: 00000000ffffffa6 RBX: ff11000009c16dc0 RCX: 1ff40000000e4dca
[    8.116645][  T139] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009c16e70
[    8.116832][  T139] RBP: ff1100000c61a000 R08: 1fe2200001382dcf R09: ff1100000be88b80
[    8.117021][  T139] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    8.117208][  T139] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    8.117396][  T139] FS:  00007fb569012840(0000) GS:ff1100007b73b000(0000) knlGS:0000000000000000
[    8.117628][  T139] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.117788][  T139] CR2: 00007fb5692e21a0 CR3: 000000000ad31005 CR4: 0000000000771ef0
[    8.117979][  T139] PKRU: 55555554
[    8.118073][  T139] Call Trace:
[    8.118167][  T139]  <TASK>
[    8.118232][  T139]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.118359][  T139]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.118460][  T139]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.118590][  T139]  __dev_notify_flags (net/core/dev.c:9787)
[    8.118717][  T139]  ? netif_change_name (net/core/dev.c:1495)
[    8.118842][  T139]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.118967][  T139]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    8.119091][  T139]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.119216][  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))
[    8.119343][  T139]  netif_change_flags (net/core/dev.c:9820)
[    8.119950][  T139]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.120080][  T139]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.120205][  T139]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.120359][  T139]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.120490][  T139]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.120619][  T139]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.120743][  T139]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.120871][  T139]  ? __kernel_text_address (kernel/extable.c:79)
[    8.120998][  T139]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.121125][  T139]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.121248][  T139]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.121374][  T139]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.121504][  T139]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.121632][  T139]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.121757][  T139]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.121883][  T139]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.122009][  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)
[    8.122135][  T139]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.122260][  T139]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.122386][  T139]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.122520][  T139]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.122653][  T139]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.122781][  T139]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.122908][  T139]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.123033][  T139]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.123157][  T139]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.123282][  T139]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.123414][  T139]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.123539][  T139]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.123666][  T139]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.123791][  T139]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.123917][  T139]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.124042][  T139]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.124166][  T139]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.124291][  T139]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.124419][  T139]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.124547][  T139]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.124674][  T139]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.124801][  T139]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.124927][  T139]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.125052][  T139]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.125181][  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))
[    8.125306][  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))
[    8.125438][  T139]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.125565][  T139]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.125692][  T139]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.125818][  T139]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.125944][  T139]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.126070][  T139]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.126196][  T139]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.126324][  T139]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.126451][  T139]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.126610][  T139]  ? move_addr_to_kernel (net/socket.c:258)
[    8.126738][  T139]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.126863][  T139]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.126990][  T139]  ___sys_sendmsg (net/socket.c:2752)
[    8.127115][  T139]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.127272][  T139]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.127415][  T139]  __sys_sendmsg (net/socket.c:2784)
[    8.127541][  T139]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.127671][  T139]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    8.127830][  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)
[    8.127955][  T139]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.128082][  T139]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.128209][  T139]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.128335][  T139]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.128465][  T139]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.128626][  T139] RIP: 0033:0x7fb56924c08e
[    8.128759][  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
[    8.129203][  T139] RSP: 002b:00007ffc8e7ea260 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.129394][  T139] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb56924c08e
[    8.129591][  T139] RDX: 0000000000000000 RSI: 00007ffc8e7ea310 RDI: 0000000000000003
[    8.129778][  T139] RBP: 00007ffc8e7ea270 R08: 0000000000000000 R09: 0000000000000000
[    8.129965][  T139] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c525
[    8.130152][  T139] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc8e7ea9e0
| [    8.196537][  T141] ------------[ cut here ]------------
| [    8.196724][  T141] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/141
| [    8.196963][  T141] Modules linked in: veth netdevsim
| [    8.197463][  T141] Tainted: [W]=WARN
[    8.197569][  T141] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.197763][  T141] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.197938][  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
[    8.198414][  T141] RSP: 0018:ffa00000006e6e30 EFLAGS: 00010286
[    8.198593][  T141] RAX: 00000000ffffffa6 RBX: ff1100000c9ad240 RCX: 1ff40000000dcd8c
[    8.198792][  T141] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c9ad2f0
[    8.198989][  T141] RBP: ff1100000d199000 R08: 1fe2200001935a5f R09: ff1100000d150b80
[    8.199187][  T141] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.199385][  T141] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c9f1c80
[    8.199599][  T141] FS:  00007f8e9f1a9840(0000) GS:ff1100007b5bb000(0000) knlGS:0000000000000000
[    8.199832][  T141] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.200000][  T141] CR2: 00007f8e9f510f6d CR3: 000000000ad31004 CR4: 0000000000771ef0
[    8.200198][  T141] PKRU: 55555554
[    8.200298][  T141] Call Trace:
[    8.200396][  T141]  <TASK>
[    8.200472][  T141]  ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[    8.200608][  T141]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.200742][  T141]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.200842][  T141]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.200975][  T141]  __dev_notify_flags (net/core/dev.c:9787)
[    8.201108][  T141]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.201239][  T141]  ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:164)
[    8.201372][  T141]  ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:164)
[    8.201509][  T141]  ? netif_change_name (net/core/dev.c:1495)
[    8.201643][  T141]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[    8.201804][  T141]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[    8.201940][  T141]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    8.202073][  T141] veth_newlink (drivers/net/veth.c:1871) veth
[    8.202205][  T141]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[    8.202370][  T141]  ? kasan_save_stack (mm/kasan/common.c:57)
[    8.202507][  T141]  ? kasan_save_track (mm/kasan/common.c:78)
[    8.202640][  T141]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    8.202786][  T141]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    8.202918][  T141]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    8.203051][  T141]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    8.203181][  T141]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.203314][  T141]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[    8.203509][  T141]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    8.203645][  T141]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    8.203776][  T141]  ? __dev_get_by_name (net/core/dev.c:883)
[    8.203906][  T141]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    8.204043][  T141]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    8.204177][  T141]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.204310][  T141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.204448][  T141]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.204584][  T141]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.204714][  T141]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.204843][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.204978][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.205111][  T141]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.205242][  T141]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.205373][  T141]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.205512][  T141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.205646][  T141]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.205779][  T141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.205908][  T141]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.206038][  T141]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.206169][  T141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.206300][  T141]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.206439][  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))
[    8.206573][  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))
[    8.206706][  T141]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.206836][  T141]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.206966][  T141]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.207099][  T141]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.207231][  T141]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.207363][  T141]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.207504][  T141]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.207641][  T141]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.207771][  T141]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.207934][  T141]  ? move_addr_to_kernel (net/socket.c:258)
[    8.208069][  T141]  ___sys_sendmsg (net/socket.c:2752)
[    8.208201][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.208332][  T141]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.208479][  T141]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[    8.208612][  T141]  __sys_sendmsg (net/socket.c:2784)
[    8.208742][  T141]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.208874][  T141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.209004][  T141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.209134][  T141]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.209265][  T141]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.209395][  T141]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.209532][  T141]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.209696][  T141] RIP: 0033:0x7f8e9f3e308e
[    8.209833][  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
[    8.210290][  T141] RSP: 002b:00007fff226f6180 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.210493][  T141] RAX: ffffffffffffffda RBX: 00007fff226f6928 RCX: 00007f8e9f3e308e
[    8.210691][  T141] RDX: 0000000000000000 RSI: 00007fff226f6230 RDI: 0000000000000003
[    8.210887][  T141] RBP: 00007fff226f6190 R08: 0000000000000000 R09: 0000000000000000
[    8.211082][  T141] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c525
[    8.211279][  T141] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff226f6900
| [    8.219134][  T141] ------------[ cut here ]------------
| [    8.219272][  T141] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/141
| [    8.219977][  T141] Modules linked in: veth netdevsim
| [    8.220368][  T141] Tainted: [W]=WARN
[    8.220522][  T141] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.220686][  T141] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.220908][  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
[    8.221361][  T141] RSP: 0018:ffa00000006e71b0 EFLAGS: 00010286
[    8.221582][  T141] RAX: 00000000ffffffa6 RBX: ff1100000c9e39c0 RCX: 1ff40000000dcdfc
[    8.221774][  T141] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c9e3a70
[    8.221963][  T141] RBP: ff11000009a94000 R08: 1fe220000193c74f R09: ff1100000d150b80
[    8.222153][  T141] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.222343][  T141] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc03f0b20
[    8.222594][  T141] FS:  00007f8e9f1a9840(0000) GS:ff1100007b5bb000(0000) knlGS:0000000000000000
[    8.222818][  T141] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.222980][  T141] CR2: 00007f8e9f510f6d CR3: 000000000ad31004 CR4: 0000000000771ef0
[    8.223172][  T141] PKRU: 55555554
[    8.223267][  T141] Call Trace:
[    8.223364][  T141]  <TASK>
[    8.223483][  T141]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.223616][  T141]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.223714][  T141]  __dev_notify_flags (net/core/dev.c:9787)
[    8.223843][  T141]  ? netif_change_name (net/core/dev.c:1495)
[    8.223971][  T141]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    8.224100][  T141]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.224230][  T141]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    8.224360][  T141]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    8.224543][  T141]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    8.224672][  T141]  ? __dev_get_by_name (net/core/dev.c:883)
[    8.224799][  T141]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    8.224932][  T141]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    8.225063][  T141]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.225191][  T141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.225320][  T141]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.225500][  T141]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.225630][  T141]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.225757][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.225888][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.226018][  T141]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.226146][  T141]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.226273][  T141]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.226401][  T141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.226587][  T141]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.226718][  T141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.226845][  T141]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.226972][  T141]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.227099][  T141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.227227][  T141]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.227358][  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))
[    8.227539][  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))
[    8.227672][  T141]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.227801][  T141]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.227928][  T141]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.228057][  T141]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.228185][  T141]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.228315][  T141]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.228499][  T141]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.228631][  T141]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.228758][  T141]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.228916][  T141]  ? move_addr_to_kernel (net/socket.c:258)
[    8.229049][  T141]  ___sys_sendmsg (net/socket.c:2752)
[    8.229177][  T141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.229305][  T141]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.229520][  T141]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[    8.229655][  T141]  __sys_sendmsg (net/socket.c:2784)
[    8.229782][  T141]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.229913][  T141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.230040][  T141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.230169][  T141]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.230298][  T141]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.230480][  T141]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.230610][  T141]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.230769][  T141] RIP: 0033:0x7f8e9f3e308e
[    8.230905][  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
[    8.231352][  T141] RSP: 002b:00007fff226f6180 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.231601][  T141] RAX: ffffffffffffffda RBX: 00007fff226f6928 RCX: 00007f8e9f3e308e
[    8.231791][  T141] RDX: 0000000000000000 RSI: 00007fff226f6230 RDI: 0000000000000003
[    8.231979][  T141] RBP: 00007fff226f6190 R08: 0000000000000000 R09: 0000000000000000
[    8.232168][  T141] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c525
[    8.232358][  T141] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff226f6900
| [    8.259467][  T143] ------------[ cut here ]------------
| [    8.259611][  T143] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/143
| [    8.259831][  T143] Modules linked in: veth netdevsim
| [    8.260261][  T143] Tainted: [W]=WARN
[    8.260358][  T143] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.260527][  T143] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.260696][  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
[    8.261136][  T143] RSP: 0018:ffa00000004e7020 EFLAGS: 00010286
[    8.261293][  T143] RAX: 00000000ffffffa6 RBX: ff11000009dc56c0 RCX: 1ff400000009cdca
[    8.261487][  T143] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009dc5770
[    8.261677][  T143] RBP: ff11000009a94000 R08: 1fe22000013b8aef R09: ff1100000bd5ae58
[    8.261862][  T143] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    8.262046][  T143] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    8.262232][  T143] FS:  00007fb71cad2840(0000) GS:ff1100007b73b000(0000) knlGS:0000000000000000
[    8.262456][  T143] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.262616][  T143] CR2: 00007fb71cda21a0 CR3: 000000000cb72002 CR4: 0000000000771ef0
[    8.262803][  T143] PKRU: 55555554
[    8.262895][  T143] Call Trace:
[    8.262988][  T143]  <TASK>
[    8.263052][  T143]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.263178][  T143]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.263273][  T143]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.263397][  T143]  __dev_notify_flags (net/core/dev.c:9787)
[    8.263526][  T143]  ? netif_change_name (net/core/dev.c:1495)
[    8.263653][  T143]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.263778][  T143]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    8.263903][  T143]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.264029][  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))
[    8.264156][  T143]  netif_change_flags (net/core/dev.c:9820)
[    8.264280][  T143]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    8.264410][  T143]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.264537][  T143]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.264667][  T143]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.264822][  T143]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.264946][  T143]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.265071][  T143]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.265196][  T143]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.265321][  T143]  ? __kernel_text_address (kernel/extable.c:79)
[    8.265450][  T143]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.265578][  T143]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.265702][  T143]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.265826][  T143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.265950][  T143]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.266073][  T143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.266196][  T143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.266319][  T143]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.266447][  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)
[    8.266575][  T143]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.266699][  T143]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.266824][  T143]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.266950][  T143]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.267076][  T143]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.267201][  T143]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.267324][  T143]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.267451][  T143]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.267578][  T143]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.267701][  T143]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.267826][  T143]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.267949][  T143]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.268072][  T143]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.268196][  T143]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.268322][  T143]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.268449][  T143]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.268576][  T143]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.268700][  T143]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.268823][  T143]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.268949][  T143]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.269073][  T143]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.269197][  T143]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.269322][  T143]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.269449][  T143]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.269579][  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))
[    8.269701][  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))
[    8.269826][  T143]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.269949][  T143]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.270074][  T143]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.270198][  T143]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.270323][  T143]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.270450][  T143]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.270577][  T143]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.270701][  T143]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.270825][  T143]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.270977][  T143]  ? move_addr_to_kernel (net/socket.c:258)
[    8.271102][  T143]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.271225][  T143]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.271350][  T143]  ___sys_sendmsg (net/socket.c:2752)
[    8.271477][  T143]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.271634][  T143]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.271770][  T143]  __sys_sendmsg (net/socket.c:2784)
[    8.271893][  T143]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.272014][  T143]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    8.272169][  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)
[    8.272292][  T143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.272418][  T143]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.272542][  T143]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.272666][  T143]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.272788][  T143]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.272940][  T143] RIP: 0033:0x7fb71cd0c08e
[    8.273069][  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
[    8.273511][  T143] RSP: 002b:00007ffd74f263e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.273700][  T143] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb71cd0c08e
[    8.273885][  T143] RDX: 0000000000000000 RSI: 00007ffd74f26490 RDI: 0000000000000003
[    8.274069][  T143] RBP: 00007ffd74f263f0 R08: 0000000000000000 R09: 0000000000000000
[    8.274253][  T143] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c525
[    8.274442][  T143] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd74f26b60
| [    8.310349][  T144] ------------[ cut here ]------------
| [    8.310532][  T144] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/144
| [    8.310801][  T144] Modules linked in: veth netdevsim
| [    8.311266][  T144] Tainted: [W]=WARN
[    8.311427][  T144] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.311636][  T144] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.311842][  T144] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.312320][  T144] RSP: 0018:ffa00000004d7020 EFLAGS: 00010286
[    8.312637][  T144] RAX: 00000000ffffffa6 RBX: ff1100000924e940 RCX: 1ff400000009adca
[    8.312940][  T144] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000924e9f0
[    8.313249][  T144] RBP: ff1100000d199000 R08: 1fe2200001249d3f R09: ff1100000bd5d158
[    8.313575][  T144] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    8.313884][  T144] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    8.314164][  T144] FS:  00007f05a3ed9840(0000) GS:ff1100007b6bb000(0000) knlGS:0000000000000000
[    8.314491][  T144] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.314753][  T144] CR2: 00000000095c3988 CR3: 000000000563f005 CR4: 0000000000771ef0
[    8.315037][  T144] PKRU: 55555554
[    8.315235][  T144] Call Trace:
[    8.315368][  T144]  <TASK>
[    8.315490][  T144]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.315671][  T144]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.315814][  T144]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.315985][  T144]  __dev_notify_flags (net/core/dev.c:9787)
[    8.316155][  T144]  ? netif_change_name (net/core/dev.c:1495)
[    8.316322][  T144]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.316504][  T144]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    8.316680][  T144]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.316855][  T144]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    8.317029][  T144]  netif_change_flags (net/core/dev.c:9820)
[    8.317199][  T144]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    8.317369][  T144]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.317549][  T144]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.317724][  T144]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.317923][  T144]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.318093][  T144]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.318265][  T144]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.318447][  T144]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.318625][  T144]  ? __kernel_text_address (kernel/extable.c:79)
[    8.318797][  T144]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.318968][  T144]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.319136][  T144]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.319306][  T144]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.319486][  T144]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.319666][  T144]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.319835][  T144]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.320003][  T144]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.320171][  T144]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    8.320340][  T144]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.320520][  T144]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.320701][  T144]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.320877][  T144]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.321049][  T144]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.321220][  T144]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.321388][  T144]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.321575][  T144]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.321745][  T144]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.321913][  T144]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.322087][  T144]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.322255][  T144]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.322437][  T144]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.322610][  T144]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.322781][  T144]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.322951][  T144]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.323120][  T144]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.323289][  T144]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.323474][  T144]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.323655][  T144]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.323823][  T144]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.323994][  T144]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.324163][  T144]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.324332][  T144]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.324518][  T144]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    8.324694][  T144]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    8.324867][  T144]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.325038][  T144]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.325207][  T144]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.325379][  T144]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.325562][  T144]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.325740][  T144]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.325912][  T144]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.326086][  T144]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.326255][  T144]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.326466][  T144]  ? move_addr_to_kernel (net/socket.c:258)
[    8.326641][  T144]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.326811][  T144]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.326982][  T144]  ___sys_sendmsg (net/socket.c:2752)
[    8.327150][  T144]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.327350][  T144]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.327543][  T144]  __sys_sendmsg (net/socket.c:2784)
[    8.327720][  T144]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.327887][  T144]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    8.328088][  T144]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    8.328256][  T144]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.328438][  T144]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.328619][  T144]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.328787][  T144]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.328957][  T144]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.329155][  T144] RIP: 0033:0x7f05a411308e
[    8.329330][  T144] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    8.329831][  T144] RSP: 002b:00007ffe0efe2610 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.330064][  T144] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f05a411308e
[    8.330294][  T144] RDX: 0000000000000000 RSI: 00007ffe0efe26c0 RDI: 0000000000000003
[    8.330535][  T144] RBP: 00007ffe0efe2620 R08: 0000000000000000 R09: 0000000000000000
[    8.330776][  T144] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c525
[    8.331005][  T144] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe0efe2d90
| [    8.338767][  T101] ------------[ cut here ]------------
| [    8.338923][  T101] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/101
| [    8.339153][  T101] Modules linked in: veth netdevsim
| [    8.339566][  T101] Tainted: [W]=WARN
[    8.339661][  T101] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.339805][  T101] Workqueue: events_unbound linkwatch_event
[    8.339959][  T101] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.340106][  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
[    8.340561][  T101] RSP: 0018:ffa00000006379e0 EFLAGS: 00010286
[    8.340710][  T101] RAX: 00000000ffffffa6 RBX: ff1100000928ec40 RCX: 1ff40000000c6f02
[    8.340880][  T101] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000928ecf0
[    8.341051][  T101] RBP: ff1100000d199000 R08: 1fe2200001251d9f R09: ff11000009bc8ba8
[    8.341234][  T101] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[    8.341401][  T101] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.341582][  T101] FS:  0000000000000000(0000) GS:ff1100007b73b000(0000) knlGS:0000000000000000
[    8.341785][  T101] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.341929][  T101] CR2: 00007fb71cb9f574 CR3: 0000000018339003 CR4: 0000000000771ef0
[    8.342103][  T101] PKRU: 55555554
[    8.342232][  T101] Call Trace:
[    8.342318][  T101]  <TASK>
[    8.342379][  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))
[    8.342502][  T101]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.342621][  T101]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.342746][  T101]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.342840][  T101]  netif_state_change (net/core/dev.c:1605)
[    8.342958][  T101]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[    8.343101][  T101]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    8.343219][  T101]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    8.343334][  T101]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.343456][  T101]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    8.343574][  T101]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[    8.343691][  T101]  process_one_work (kernel/workqueue.c:3314)
[    8.343809][  T101]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.343924][  T101]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.344043][  T101]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.344158][  T101]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.344272][  T101]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    8.344388][  T101]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.344508][  T101]  kthread (kernel/kthread.c:436)
[    8.344599][  T101]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.344740][  T101]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.344854][  T101]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.344970][  T101]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.345117][  T101]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.345231][  T101]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.345347][  T101]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    8.346933][  T101] ------------[ cut here ]------------
| [    8.347050][  T101] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/101
| [    8.347277][  T101] Modules linked in: veth netdevsim
| [    8.347667][  T101] Tainted: [W]=WARN
[    8.347752][  T101] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.347922][  T101] Workqueue: events_unbound linkwatch_event
[    8.348086][  T101] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.348235][  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
[    8.348666][  T101] RSP: 0018:ffa00000006379e0 EFLAGS: 00010286
[    8.348810][  T101] RAX: 00000000ffffffa6 RBX: ff1100000928f3c0 RCX: 1ff40000000c6f02
[    8.348982][  T101] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000928f470
[    8.349153][  T101] RBP: ff11000009a94000 R08: 1fe2200001251e8f R09: ff11000009bc8ba8
[    8.349325][  T101] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[    8.349500][  T101] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.349678][  T101] FS:  0000000000000000(0000) GS:ff1100007b73b000(0000) knlGS:0000000000000000
[    8.349881][  T101] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.350023][  T101] CR2: 00007fb71cb9f574 CR3: 0000000018339003 CR4: 0000000000771ef0
[    8.350194][  T101] PKRU: 55555554
[    8.350279][  T101] Call Trace:
[    8.350365][  T101]  <TASK>
[    8.350429][  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))
[    8.350542][  T101]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.350658][  T101]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.350773][  T101]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.350860][  T101]  netif_state_change (net/core/dev.c:1605)
[    8.350976][  T101]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[    8.351120][  T101]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    8.351235][  T101]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    8.351352][  T101]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.351474][  T101]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    8.351595][  T101]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[    8.351711][  T101]  process_one_work (kernel/workqueue.c:3314)
[    8.351827][  T101]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    8.351942][  T101]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.352065][  T101]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    8.352180][  T101]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.352294][  T101]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    8.352413][  T101]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    8.352526][  T101]  kthread (kernel/kthread.c:436)
[    8.352613][  T101]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.352754][  T101]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.352869][  T101]  ret_from_fork (arch/x86/kernel/process.c:158)
[    8.352983][  T101]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    8.353127][  T101]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    8.353241][  T101]  ? kthread_affine_node (kernel/kthread.c:378)
[    8.353356][  T101]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.825597][  T185] ------------[ cut here ]------------
| [   13.825823][  T185] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: python3/185
| [   13.826086][  T185] Modules linked in: dummy veth netdevsim
| [   13.826581][  T185] Tainted: [W]=WARN
[   13.826718][  T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.826881][  T185] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.827050][  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
[   13.827519][  T185] RSP: 0018:ffa00000007973a0 EFLAGS: 00010286
[   13.827686][  T185] RAX: 00000000ffffffa6 RBX: ff1100000924f540 RCX: 1ff40000000f2e3a
[   13.827878][  T185] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000924f5f0
[   13.828072][  T185] RBP: ff11000009579000 R08: 1fe2200001249ebf R09: ff11000009bcd1a8
[   13.828265][  T185] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   13.828463][  T185] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   13.828659][  T185] FS:  00007fbaa381fbc0(0000) GS:ff1100007b5bb000(0000) knlGS:0000000000000000
[   13.828889][  T185] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.829054][  T185] CR2: 00007fbaa21a9030 CR3: 000000000f44c001 CR4: 0000000000771ef0
[   13.829247][  T185] PKRU: 55555554
[   13.829345][  T185] Call Trace:
[   13.829448][  T185]  <TASK>
[   13.829516][  T185]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.829653][  T185]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.829750][  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)
[   13.829880][  T185]  __dev_notify_flags (net/core/dev.c:9787)
[   13.830012][  T185]  ? netif_change_name (net/core/dev.c:1495)
[   13.830141][  T185]  ? register_netdevice (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:48 net/core/dev.c:11475)
[   13.830271][  T185]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   13.830442][  T185]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   13.830573][  T185]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   13.830800][  T185]  ? __dev_get_by_name (net/core/dev.c:883)
[   13.831014][  T185]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   13.831236][  T185]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   13.831369][  T185]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   13.831505][  T185]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.831640][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.831769][  T185]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.831896][  T185]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   13.832027][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.832160][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   13.832290][  T185]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   13.832589][  T185]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   13.832721][  T185]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   13.832849][  T185]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.832977][  T185]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.833106][  T185]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   13.833235][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   13.833364][  T185]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.833501][  T185]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.833632][  T185]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.833765][  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))
[   13.833894][  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))
[   13.834024][  T185]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.834155][  T185]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.834282][  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))
[   13.834417][  T185]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[   13.834637][  T185]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.834767][  T185]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.834897][  T185]  ? _copy_from_user (./include/linux/instrumented.h:146 ./include/linux/uaccess.h:184 lib/usercopy.c:18)
[   13.835110][  T185]  ? netlink_setsockopt (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:28 net/netlink/af_netlink.c:1715)
[   13.835242][  T185]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   13.835371][  T185]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   13.835588][  T185]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   13.835778][  T185]  ? put_user_ifreq (./arch/x86/include/asm/compat.h:94 (discriminator 1))
[   13.835998][  T185]  ? __sys_setsockopt (net/socket.c:2406)
[   13.836211][  T185]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   13.836339][  T185]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.836505][  T185]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.836639][  T185]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.836768][  T185]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.836895][  T185]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.837022][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.837150][  T185]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.837311][  T185] RIP: 0033:0x7fbaa39a808e
[   13.837452][  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
[   13.837914][  T185] RSP: 002b:00007fffd5d5feb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   13.838196][  T185] RAX: ffffffffffffffda RBX: 00007fffd5d5ffc0 RCX: 00007fbaa39a808e
[   13.838388][  T185] RDX: 000000000000003c RSI: 00007fbaa2ec7d70 RDI: 0000000000000003
[   13.838675][  T185] RBP: 00007fffd5d5fec0 R08: 0000000000000000 R09: 0000000000000000
[   13.838868][  T185] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fbaa2ec9b00
[   13.839059][  T185] R13: 00007fffd5d5ffc0 R14: 00007fbaa2fd5140 R15: 0000000000000002
| [   14.722102][  T192] ------------[ cut here ]------------
| [   14.722292][  T192] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: python3/192
| [   14.722562][  T192] Modules linked in: dummy veth netdevsim
| [   14.722938][  T192] Tainted: [W]=WARN
[   14.723031][  T192] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.723179][  T192] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   14.723333][  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
[   14.723767][  T192] RSP: 0018:ffa00000004b7388 EFLAGS: 00010286
[   14.723915][  T192] RAX: 00000000ffffffa6 RBX: ff1100000d2ec940 RCX: 1ff4000000096e37
[   14.724089][  T192] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d2ec9f0
[   14.724270][  T192] RBP: ff11000009579000 R08: 1fe2200001a5d93f R09: ff1100000d15d158
[   14.724454][  T192] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   14.724637][  T192] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   14.724816][  T192] FS:  00007f13d6354bc0(0000) GS:ff1100007b73b000(0000) knlGS:0000000000000000
[   14.725021][  T192] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.725170][  T192] CR2: 00007f13d4cdd030 CR3: 000000000c402004 CR4: 0000000000771ef0
[   14.725348][  T192] PKRU: 55555554
[   14.725441][  T192] Call Trace:
[   14.725529][  T192]  <TASK>
[   14.725604][  T192]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   14.725756][  T192]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   14.725898][  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)
[   14.726021][  T192]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.726137][  T192]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   14.726315][  T192]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   14.726440][  T192]  rtnl_dellink (net/core/rtnetlink.c:3592 net/core/rtnetlink.c:3634)
[   14.726559][  T192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.726685][  T192]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.726802][  T192]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   14.726919][  T192]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   14.727037][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.727170][  T192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.727288][  T192]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.727409][  T192]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   14.727524][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.727643][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.727765][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   14.727884][  T192]  ? rtnl_mdb_del (net/core/rtnetlink.c:6900 (discriminator 2))
[   14.728001][  T192]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   14.728116][  T192]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   14.728233][  T192]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.728349][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   14.728473][  T192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   14.728589][  T192]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   14.728710][  T192]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   14.728828][  T192]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.728946][  T192]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.729084][  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))
[   14.729198][  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))
[   14.729316][  T192]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.729439][  T192]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.729558][  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))
[   14.729679][  T192]  ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:827)
[   14.729796][  T192]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   14.729914][  T192]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   14.730031][  T192]  ? _copy_from_user (./include/linux/instrumented.h:146 ./include/linux/uaccess.h:184 lib/usercopy.c:18)
[   14.730149][  T192]  ? netlink_setsockopt (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:28 net/netlink/af_netlink.c:1715)
[   14.730266][  T192]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   14.730386][  T192]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   14.730517][  T192]  ? kfree (mm/slub.c:6551 (discriminator 1))
[   14.730635][  T192]  ? put_user_ifreq (./arch/x86/include/asm/compat.h:94 (discriminator 1))
[   14.730757][  T192]  ? __sys_setsockopt (net/socket.c:2406)
[   14.730875][  T192]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   14.730992][  T192]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.731139][  T192]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   14.731256][  T192]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   14.731375][  T192]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   14.731497][  T192]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   14.731612][  T192]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   14.731734][  T192]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.731878][  T192] RIP: 0033:0x7f13d64dd08e
[   14.732002][  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
[   14.732420][  T192] RSP: 002b:00007ffc31e921c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   14.732597][  T192] RAX: ffffffffffffffda RBX: 00007ffc31e922d0 RCX: 00007f13d64dd08e
[   14.732771][  T192] RDX: 000000000000002c RSI: 00007f13d5a49090 RDI: 0000000000000003
[   14.732952][  T192] RBP: 00007ffc31e921d0 R08: 0000000000000000 R09: 0000000000000000
[   14.733139][  T192] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f13d59f5b00
[   14.733318][  T192] R13: 00007ffc31e922d0 R14: 00007f13d5b0a140 R15: 0000000000000002
| [   17.826989][  T217] ------------[ cut here ]------------
| [   17.827213][  T217] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/217
| [   17.827665][  T217] Modules linked in: dummy veth netdevsim
| [   17.828170][  T217] Tainted: [W]=WARN
[   17.828285][  T217] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.828596][  T217] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.828799][  T217] 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
[   17.829439][  T217] RSP: 0018:ffa00000007675a8 EFLAGS: 00010286
[   17.829634][  T217] RAX: 00000000ffffffa6 RBX: ff1100000bcce040 RCX: 1ff40000000ece7b
[   17.829867][  T217] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000bcce0f0
[   17.830096][  T217] RBP: ff1100000c61a000 R08: 1fe2200001799c1f R09: ff1100000d0e8c70
[   17.830324][  T217] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   17.830658][  T217] R13: 0000000000000000 R14: 0000000000000000 R15: ffa0000000767698
[   17.830889][  T217] FS:  00007f9a5c658740(0000) GS:ff1100007b73b000(0000) knlGS:0000000000000000
[   17.831162][  T217] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.831356][  T217] CR2: 00005605efc16338 CR3: 000000000f450003 CR4: 0000000000771ef0
[   17.831696][  T217] PKRU: 55555554
[   17.831811][  T217] Call Trace:
[   17.831926][  T217]  <TASK>
[   17.832008][  T217]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.832174][  T217]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.832291][  T217]  netif_close_many (net/core/dev.c:1804)
[   17.832544][  T217]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.832701][  T217]  ? __dev_close_many (net/core/dev.c:1781)
[   17.832853][  T217]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.833008][  T217]  netif_close_many_and_unlock (net/core/dev.c:12330)
[   17.833161][  T217]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[   17.833351][  T217]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[   17.833751][  T217]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.833905][  T217]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   17.834057][  T217]  ? __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)
[   17.834221][  T217]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   17.834378][  T217]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   17.834695][  T217]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   17.834850][  T217]  ? netdev_run_todo (net/core/dev.c:11703)
[   17.835002][  T217]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   17.835154][  T217]  ? 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)
[   17.835308][  T217]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   17.835581][  T217]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.835735][  T217]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   17.835890][  T217] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   17.836047][  T217]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.836203][  T217] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   17.836396][  T217] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   17.836715][  T217] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[   17.836869][  T217]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[   17.837064][  T217]  bus_remove_device (drivers/base/bus.c:657)
[   17.837219][  T217]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[   17.837371][  T217]  ? device_remove_file (drivers/base/core.c:3073)
[   17.837654][  T217]  device_del (drivers/base/core.c:3895)
[   17.837771][  T217]  ? __device_link_del (./include/linux/kobject.h:89)
[   17.837925][  T217]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[   17.838079][  T217]  device_unregister (drivers/base/core.c:3936)
[   17.838231][  T217] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[   17.838541][  T217]  ? 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))
[   17.838698][  T217]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[   17.838889][  T217]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[   17.839041][  T217]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[   17.839193][  T217]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[   17.839345][  T217]  ? kernfs_ops (fs/kernfs/file.c:128)
[   17.839582][  T217]  new_sync_write (fs/read_write.c:595)
[   17.839741][  T217]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.839893][  T217]  ? new_sync_read (./include/linux/ioprio.h:41)
[   17.840047][  T217]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.840199][  T217]  ? ksys_write (fs/read_write.c:740)
[   17.840354][  T217]  vfs_write (fs/read_write.c:688)
[   17.840596][  T217]  ksys_write (fs/read_write.c:740)
[   17.840715][  T217]  ? __ia32_sys_read (fs/read_write.c:724)
[   17.840867][  T217]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.841019][  T217]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.841174][  T217]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.841327][  T217]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.841604][  T217]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.841760][  T217]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.841950][  T217] RIP: 0033:0x7f9a5c6cb08e
[   17.842110][  T217] 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
[   17.842784][  T217] RSP: 002b:00007fff36366d10 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   17.843016][  T217] RAX: ffffffffffffffda RBX: 00007f9a5c84d580 RCX: 00007f9a5c6cb08e
[   17.843244][  T217] RDX: 0000000000000005 RSI: 00005605efc15330 RDI: 0000000000000001
[   17.843597][  T217] RBP: 00007fff36366d20 R08: 0000000000000000 R09: 0000000000000000
[   17.843830][  T217] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[   17.844058][  T217] R13: 0000000000000005 R14: 00005605efc15330 R15: 0000000000000000
| [   17.862988][  T217] ------------[ cut here ]------------
| [   17.863225][  T217] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bash/217
| [   17.863668][  T217] Modules linked in: dummy veth netdevsim
| [   17.864240][  T217] Tainted: [W]=WARN
[   17.864396][  T217] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.864637][  T217] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.864883][  T217] 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
[   17.865450][  T217] RSP: 0018:ffa0000000767728 EFLAGS: 00010286
[   17.865687][  T217] RAX: 00000000ffffffa6 RBX: ff1100000924fe40 RCX: 1ff40000000eceab
[   17.865947][  T217] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000924fef0
[   17.866208][  T217] RBP: ff1100000c61a000 R08: 1fe2200001249fdf R09: ff1100000d0e8c48
[   17.866481][  T217] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.866756][  T217] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   17.867023][  T217] FS:  00007f9a5c658740(0000) GS:ff1100007b6bb000(0000) knlGS:0000000000000000
[   17.867323][  T217] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.867574][  T217] CR2: 00005586dfdc8d5c CR3: 000000000f450005 CR4: 0000000000771ef0
[   17.867847][  T217] PKRU: 55555554
[   17.868002][  T217] Call Trace:
[   17.868157][  T217]  <TASK>
[   17.868278][  T217]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   17.868521][  T217]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   17.868752][  T217]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   17.868945][  T217]  ? netdev_run_todo (net/core/dev.c:11703)
[   17.869139][  T217]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   17.869332][  T217]  ? 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)
[   17.869538][  T217]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   17.869738][  T217]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.869932][  T217]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   17.870125][  T217] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   17.870322][  T217]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.870531][  T217] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   17.870766][  T217] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   17.870994][  T217] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[   17.871186][  T217]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[   17.871428][  T217]  bus_remove_device (drivers/base/bus.c:657)
[   17.871621][  T217]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[   17.871818][  T217]  ? device_remove_file (drivers/base/core.c:3073)
[   17.872014][  T217]  device_del (drivers/base/core.c:3895)
[   17.872171][  T217]  ? __device_link_del (./include/linux/kobject.h:89)
[   17.872363][  T217]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[   17.872567][  T217]  device_unregister (drivers/base/core.c:3936)
[   17.872765][  T217] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[   17.872997][  T217]  ? 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))
[   17.873189][  T217]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[   17.873431][  T217]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[   17.873622][  T217]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[   17.873822][  T217]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[   17.874012][  T217]  ? kernfs_ops (fs/kernfs/file.c:128)
[   17.874167][  T217]  new_sync_write (fs/read_write.c:595)
[   17.874360][  T217]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.874566][  T217]  ? new_sync_read (./include/linux/ioprio.h:41)
[   17.874764][  T217]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.874957][  T217]  ? ksys_write (fs/read_write.c:740)
[   17.875151][  T217]  vfs_write (fs/read_write.c:688)
[   17.875309][  T217]  ksys_write (fs/read_write.c:740)
[   17.875479][  T217]  ? __ia32_sys_read (fs/read_write.c:724)
[   17.875677][  T217]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.875867][  T217]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.876057][  T217]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.876248][  T217]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.876455][  T217]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.876655][  T217]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.876881][  T217] RIP: 0033:0x7f9a5c6cb08e
[   17.877077][  T217] 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
[   17.877533][    C0] clocksource: Watchdog remote CPU 2 read timed out
[   17.877716][  T217] RSP: 002b:00007fff36366d10 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   17.878176][  T217] RAX: ffffffffffffffda RBX: 00007f9a5c84d580 RCX: 00007f9a5c6cb08e
[   17.878450][  T217] RDX: 0000000000000005 RSI: 00005605efc15330 RDI: 0000000000000001
[   17.878719][  T217] RBP: 00007fff36366d20 R08: 0000000000000000 R09: 0000000000000000
[   17.878984][  T217] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[   17.879243][  T217] R13: 0000000000000005 R14: 00005605efc15330 R15: 0000000000000000
| [   17.935744][   T12] ------------[ cut here ]------------
| [   17.935910][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   17.936275][   T12] Modules linked in: dummy veth netdevsim
| [   17.936823][   T12] Tainted: [W]=WARN
[   17.936913][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.937062][   T12] Workqueue: netns cleanup_net
[   17.937190][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.937468][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.937898][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   17.938050][   T12] RAX: 00000000ffffffa6 RBX: ff1100000924ef40 RCX: 1ff4000000018eaf
[   17.938233][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000924eff0
[   17.938564][   T12] RBP: ff11000009a94000 R08: 1fe2200001249dff R09: ff11000001b051d0
[   17.938746][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   17.938930][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d199000
[   17.939111][   T12] FS:  0000000000000000(0000) GS:ff1100007b73b000(0000) knlGS:0000000000000000
[   17.939323][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.939545][   T12] CR2: 00007f0ac44e7574 CR3: 0000000018339004 CR4: 0000000000771ef0
[   17.939733][   T12] PKRU: 55555554
[   17.939823][   T12] Call Trace:
[   17.939913][   T12]  <TASK>
[   17.939976][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.940101][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.940193][   T12]  netif_close_many (net/core/dev.c:1804)
[   17.940312][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.940505][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.940623][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.940746][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   17.940866][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   17.941012][   T12]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   17.941135][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   17.941285][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   17.941473][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   17.941620][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   17.941741][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.941865][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   17.941984][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   17.942105][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   17.942225][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   17.942345][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.942540][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   17.942663][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   17.942786][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   17.942904][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.943028][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   17.943149][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.943269][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   17.943389][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.943561][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.943685][   T12]  process_one_work (kernel/workqueue.c:3314)
[   17.943807][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   17.943926][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.944053][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   17.944177][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   17.944297][   T12]  kthread (kernel/kthread.c:436)
[   17.944387][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.944541][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.944739][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.944863][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   17.945019][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.945141][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.945259][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   17.947823][   T12] ------------[ cut here ]------------
| [   17.947948][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   17.948262][   T12] Modules linked in: dummy veth netdevsim
| [   17.948917][   T12] Tainted: [W]=WARN
[   17.949032][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.949185][   T12] Workqueue: netns cleanup_net
[   17.949498][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.949681][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.950231][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   17.950391][   T12] RAX: 00000000ffffffa6 RBX: ff1100000924e940 RCX: 1ff4000000018eaf
[   17.950716][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000924e9f0
[   17.950896][   T12] RBP: ff1100000d199000 R08: 1fe2200001249d3f R09: ff11000001b051d0
[   17.951074][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   17.951261][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e8
[   17.951507][   T12] FS:  0000000000000000(0000) GS:ff1100007b73b000(0000) knlGS:0000000000000000
[   17.951722][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.951872][   T12] CR2: 00007f0ac44e7574 CR3: 0000000018339004 CR4: 0000000000771ef0
[   17.952051][   T12] PKRU: 55555554
[   17.952140][   T12] Call Trace:
[   17.952231][   T12]  <TASK>
[   17.952292][   T12]  ? ip6_route_dev_notify (./include/net/net_namespace.h:419 (discriminator 1) ./include/linux/netdevice.h:2776 (discriminator 1) net/ipv6/route.c:6476 (discriminator 1))
[   17.952487][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   17.952606][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   17.952731][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   17.952821][   T12]  netif_close_many (net/core/dev.c:1804)
[   17.952941][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.953068][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.953187][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.953307][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   17.953485][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   17.953633][   T12]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   17.953759][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   17.953910][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   17.954030][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   17.954178][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   17.954298][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.954476][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   17.954599][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   17.954724][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   17.954845][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   17.954965][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.955084][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   17.955284][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   17.955453][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   17.955572][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.955698][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   17.955818][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.955936][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   17.956139][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.956258][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.956378][   T12]  process_one_work (kernel/workqueue.c:3314)
[   17.956557][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   17.956679][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.956804][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   17.956926][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   17.957046][   T12]  kthread (kernel/kthread.c:436)
[   17.957137][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.957285][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.957455][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.957575][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   17.957727][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.957851][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.958054][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   17.961092][   T12] ------------[ cut here ]------------
| [   17.961251][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   17.961571][   T12] Modules linked in: dummy veth netdevsim
| [   17.962048][   T12] Tainted: [W]=WARN
[   17.962178][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.962366][   T12] Workqueue: netns cleanup_net
[   17.962545][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.962747][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.963200][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   17.963391][   T12] RAX: 00000000ffffffa6 RBX: ff1100000928e640 RCX: 1ff4000000018ed5
[   17.963624][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000928e6f0
[   17.963846][   T12] RBP: ff11000009a94000 R08: 1fe2200001251cdf R09: ff11000001b051d0
[   17.964062][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.964276][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   17.964509][   T12] FS:  0000000000000000(0000) GS:ff1100007b6bb000(0000) knlGS:0000000000000000
[   17.964763][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.964950][   T12] CR2: 0000564c10d6a2b8 CR3: 000000000bf8f006 CR4: 0000000000771ef0
[   17.965168][   T12] PKRU: 55555554
[   17.965297][   T12] Call Trace:
[   17.965439][   T12]  <TASK>
[   17.965544][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   17.965747][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   17.965935][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   17.966095][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.966259][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   17.966432][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   17.966591][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   17.966759][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   17.966923][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.967083][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   17.967245][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   17.967422][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   17.967581][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.967748][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   17.967910][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.968073][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   17.968236][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.968399][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.968630][   T12]  process_one_work (kernel/workqueue.c:3314)
[   17.968804][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   17.968964][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.969132][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   17.969297][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   17.969475][   T12]  kthread (kernel/kthread.c:436)
[   17.969607][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.969804][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.969965][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.970127][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   17.970317][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.970493][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.970665][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   17.973966][   T12] ------------[ cut here ]------------
| [   17.974126][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   17.974399][   T12] Modules linked in: dummy veth netdevsim
| [   17.974887][   T12] Tainted: [W]=WARN
[   17.975018][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.975208][   T12] Workqueue: netns cleanup_net
[   17.975373][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.975579][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.976031][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   17.976222][   T12] RAX: 00000000ffffffa6 RBX: ff1100000928e040 RCX: 1ff4000000018ed5
[   17.976452][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000928e0f0
[   17.976672][   T12] RBP: ff1100000d199000 R08: 1fe2200001251c1f R09: ff11000001b051d0
[   17.976889][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.977105][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   17.977323][   T12] FS:  0000000000000000(0000) GS:ff1100007b6bb000(0000) knlGS:0000000000000000
[   17.977582][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.977774][   T12] CR2: 0000564c10d6a2b8 CR3: 000000000bf8f006 CR4: 0000000000771ef0
[   17.977992][   T12] PKRU: 55555554
[   17.978122][   T12] Call Trace:
[   17.978254][   T12]  <TASK>
[   17.978444][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   17.978637][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   17.978833][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   17.978994][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.979229][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   17.979392][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   17.979569][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   17.979739][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   17.979971][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.980130][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   17.980291][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   17.980537][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   17.980705][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.980878][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   17.981046][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.981206][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   17.981453][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.981613][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.981779][   T12]  process_one_work (kernel/workqueue.c:3314)
[   17.981945][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   17.982174][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.982343][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   17.982519][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   17.982688][   T12]  kthread (kernel/kthread.c:436)
[   17.982888][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.983077][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.983236][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.983398][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   17.983600][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.983768][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.983931][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   17.986955][   T12] ------------[ cut here ]------------
| [   17.987115][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   17.987387][   T12] Modules linked in: dummy veth netdevsim
| [   17.988536][   T12] Tainted: [W]=WARN
[   17.988718][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.988958][   T12] Workqueue: netns cleanup_net
[   17.989168][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   17.989421][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   17.989921][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   17.990157][   T12] RAX: 00000000ffffffa6 RBX: ff1100000928ec40 RCX: 1ff4000000018ed5
[   17.990441][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000928ecf0
[   17.990703][   T12] RBP: ff1100000c709000 R08: 1fe2200001251d9f R09: ff11000001b051d0
[   17.990959][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   17.991220][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   17.991493][   T12] FS:  0000000000000000(0000) GS:ff1100007b6bb000(0000) knlGS:0000000000000000
[   17.991789][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.992020][   T12] CR2: 0000564c10d6a2b8 CR3: 000000000bf8f006 CR4: 0000000000771ef0
[   17.992281][   T12] PKRU: 55555554
[   17.992468][   T12] Call Trace:
[   17.992642][   T12]  <TASK>
[   17.992798][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   17.993035][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   17.993266][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   17.993481][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.993697][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   17.993904][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   17.994118][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   17.994292][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   17.994465][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.994624][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   17.994794][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   17.994956][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   17.995115][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.995283][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   17.995454][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.995614][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   17.995777][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.995937][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.996100][   T12]  process_one_work (kernel/workqueue.c:3314)
[   17.996265][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   17.996437][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.996606][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   17.996779][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   17.996938][   T12]  kthread (kernel/kthread.c:436)
[   17.997071][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.997259][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   17.997431][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.997595][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   17.997793][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.997955][   T12]  ? kthread_affine_node (kernel/kthread.c:378)


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:rtnl_newlink_create
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:unregister_netdevice_queue:nsim_destroy:__nsim_dev_port_del
rtmsg_ifinfo_build_skb: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