======================================
| xx__-> [    8.701513][  T127] ------------[ cut here ]------------
| [    8.701762][  T127] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ethtool.sh/127
| [    8.702150][  T127] Modules linked in: netdevsim
| [    8.702744][  T127] Tainted: [W]=WARN
[    8.702874][  T127] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.703105][  T127] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.703331][  T127] 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
[    8.703974][  T127] RSP: 0018:ffa0000000657500 EFLAGS: 00010286
[    8.704188][  T127] RAX: 00000000ffffffa6 RBX: ff110000036a07c0 RCX: 1ff40000000cae66
[    8.704446][  T127] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000036a0870
[    8.704698][  T127] RBP: ff11000008f0a000 R08: 1fe22000006d410f R09: ff110000037e5248
[    8.704956][  T127] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.705208][  T127] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008f0a000
[    8.705471][  T127] FS:  00007fc1aa034740(0000) GS:ff1100007833b000(0000) knlGS:0000000000000000
[    8.705772][  T127] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.705994][  T127] CR2: 000055f8e60c6328 CR3: 000000000c5bd003 CR4: 0000000000771ef0
[    8.706254][  T127] PKRU: 55555554
[    8.706383][  T127] Call Trace:
[    8.706514][  T127]  <TASK>
[    8.706604][  T127]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.706786][  T127]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.707060][  T127]  register_netdevice (net/core/dev.c:11488)
[    8.707241][  T127]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.707452][  T127]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    8.707626][  T127] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    8.707845][  T127] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    8.708143][  T127] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    8.708606][  T127]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    8.708781][  T127]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    8.709000][  T127]  ? is_module_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) kernel/module/main.c:3876 (discriminator 2))
[    8.709169][  T127]  ? static_obj (kernel/locking/lockdep.c:858)
[    8.709304][  T127]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.709477][  T127]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    8.709692][  T127] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    8.709865][  T127]  call_driver_probe (drivers/base/dd.c:629)
[    8.710040][  T127]  really_probe (drivers/base/dd.c:709)
[    8.710456][  T127]  ? driver_probe_device (drivers/base/dd.c:135)
[    8.710628][  T127]  __driver_probe_device (drivers/base/dd.c:871)
[    8.710797][  T127]  driver_probe_device (drivers/base/dd.c:901)
[    8.710972][  T127]  __device_attach_driver (drivers/base/dd.c:1029)
[    8.711146][  T127]  bus_for_each_drv (drivers/base/bus.c:500)
[    8.711436][  T127]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    8.711609][  T127]  __device_attach (drivers/base/dd.c:1101)
[    8.711778][  T127]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    8.711951][  T127]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    8.712162][  T127]  ? 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)
[    8.712337][  T127]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    8.712509][  T127]  device_initial_probe (drivers/base/dd.c:1156)
[    8.712678][  T127]  bus_probe_device (drivers/base/bus.c:613)
[    8.712847][  T127]  device_add (drivers/base/core.c:3706)
[    8.713022][  T127]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    8.713234][  T127]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    8.713403][  T127]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    8.713696][  T127] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    8.713914][  T127]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.714082][  T127]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    8.714300][  T127]  ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2))
[    8.714474][  T127]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    8.714643][  T127]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    8.714811][  T127]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    8.714985][  T127]  ? kernfs_ops (fs/kernfs/file.c:128)
[    8.715115][  T127]  new_sync_write (fs/read_write.c:595)
[    8.715290][  T127]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.715460][  T127]  ? new_sync_read (./include/linux/ioprio.h:41)
[    8.715630][  T127]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.715798][  T127]  ? ksys_write (fs/read_write.c:740)
[    8.716093][  T127]  vfs_write (fs/read_write.c:688)
[    8.716225][  T127]  ksys_write (fs/read_write.c:740)
[    8.716353][  T127]  ? __ia32_sys_read (fs/read_write.c:724)
[    8.716523][  T127]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.716694][  T127]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.717103][  T127]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.717278][  T127]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.717447][  T127]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.717617][  T127]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.718066][  T127] RIP: 0033:0x7fc1aa0a708e
[    8.718249][  T127] 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
[    8.718977][  T127] RSP: 002b:00007fffc854ee40 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    8.719233][  T127] RAX: ffffffffffffffda RBX: 00007fc1aa229580 RCX: 00007fc1aa0a708e
[    8.719601][  T127] RDX: 0000000000000007 RSI: 000055f8e60c5320 RDI: 0000000000000001
[    8.719854][  T127] RBP: 00007fffc854ee50 R08: 0000000000000000 R09: 0000000000000000
[    8.720230][  T127] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000007
[    8.720481][  T127] R13: 0000000000000007 R14: 000055f8e60c5320 R15: 0000000000000000
| [    8.935603][  T137] ------------[ cut here ]------------
| [    8.935807][  T137] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/137
| [    8.936053][  T137] Modules linked in: netdevsim
| [    8.936518][  T137] Tainted: [W]=WARN
[    8.936620][  T137] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.936790][  T137] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.937070][  T137] 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
[    8.937559][  T137] RSP: 0018:ffa0000000677038 EFLAGS: 00010286
[    8.937815][  T137] RAX: 00000000ffffffa6 RBX: ff110000038301c0 RCX: 1ff40000000cedcd
[    8.938093][  T137] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000003830270
[    8.938298][  T137] RBP: ff11000008f0a000 R08: 1fe220000070604f R09: ff11000008a32e80
[    8.938498][  T137] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[    8.938698][  T137] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[    8.938981][  T137] FS:  00007f56f80c2840(0000) GS:ff1100007833b000(0000) knlGS:0000000000000000
[    8.939215][  T137] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.939389][  T137] CR2: 00007f56f83921a0 CR3: 000000000cc87004 CR4: 0000000000771ef0
[    8.939589][  T137] PKRU: 55555554
[    8.939690][  T137] Call Trace:
[    8.939788][  T137]  <TASK>
[    8.939857][  T137]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.940062][  T137]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[    8.940195][  T137]  notifier_call_chain (kernel/notifier.c:85)
[    8.940334][  T137]  netif_change_name (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:1509)
[    8.940469][  T137]  ? netdev_adjacent_rename_links (net/core/dev.c:9538)
[    8.940637][  T137]  ? 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))
[    8.940775][  T137]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[    8.940968][  T137]  do_setlink.isra.0 (net/core/rtnetlink.c:3186)
[    8.941106][  T137]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.941249][  T137]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.941419][  T137]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.941556][  T137]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.941692][  T137]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.941827][  T137]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.941966][  T137]  ? __kernel_text_address (kernel/extable.c:79)
[    8.942103][  T137]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.942245][  T137]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.942377][  T137]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.942510][  T137]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.942644][  T137]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.942776][  T137]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.942917][  T137]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.943052][  T137]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.943187][  T137]  ? __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)
[    8.943331][  T137]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.943464][  T137]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.943601][  T137]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.943736][  T137]  ? nla_get_range_signed (lib/nlattr.c:270)
[    8.943879][  T137]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.944020][  T137]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.944156][  T137]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.944294][  T137]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.944428][  T137]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.944562][  T137]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.944696][  T137]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.944832][  T137]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.944968][  T137]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.945102][  T137]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.945239][  T137]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.945374][  T137]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.945511][  T137]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.945645][  T137]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.945777][  T137]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.945915][  T137]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.946050][  T137]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.946181][  T137]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.946322][  T137]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.946455][  T137]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.946589][  T137]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.946724][  T137]  ? 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))
[    8.946857][  T137]  ? 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))
[    8.946995][  T137]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.947140][  T137]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.947279][  T137]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.947413][  T137]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.947546][  T137]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.947748][  T137]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.948021][  T137]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.948240][  T137]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.948454][  T137]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.948697][  T137]  ? move_addr_to_kernel (net/socket.c:258)
[    8.948835][  T137]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.948977][  T137]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.949115][  T137]  ___sys_sendmsg (net/socket.c:2752)
[    8.949255][  T137]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.949421][  T137]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.949567][  T137]  __sys_sendmsg (net/socket.c:2784)
[    8.949701][  T137]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.949833][  T137]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    8.950005][  T137]  ? 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)
[    8.950140][  T137]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.950282][  T137]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.950416][  T137]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.950550][  T137]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.950684][  T137]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.950852][  T137] RIP: 0033:0x7f56f82fc08e
[    8.950999][  T137] 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
[    8.951481][  T137] RSP: 002b:00007ffeba83db00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.951682][  T137] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f56f82fc08e
[    8.951880][  T137] RDX: 0000000000000000 RSI: 00007ffeba83dbb0 RDI: 0000000000000003
[    8.952087][  T137] RBP: 00007ffeba83db10 R08: 0000000000000000 R09: 0000000000000000
[    8.952299][  T137] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d237
[    8.952498][  T137] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffeba83e270
| [    8.980088][  T138] ------------[ cut here ]------------
| [    8.980262][  T138] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/138
| [    8.980504][  T138] Modules linked in: netdevsim
| [    8.980993][  T138] Tainted: [W]=WARN
[    8.981101][  T138] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.981285][  T138] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.981518][  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
[    8.982321][  T138] RSP: 0018:ffa00000006a7020 EFLAGS: 00010286
[    8.982503][  T138] RAX: 00000000ffffffa6 RBX: ff1100000c4a6040 RCX: 1ff40000000d4dca
[    8.982707][  T138] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c4a60f0
[    8.982972][  T138] RBP: ff11000008f0a000 R08: 1fe2200001894c1f R09: ff1100000c708b80
[    8.983267][  T138] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[    8.983473][  T138] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    8.983677][  T138] FS:  00007fc5408ad840(0000) GS:ff1100007823b000(0000) knlGS:0000000000000000
[    8.983998][  T138] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.984172][  T138] CR2: 000000000d45d988 CR3: 0000000009b49001 CR4: 0000000000771ef0
[    8.984383][  T138] PKRU: 55555554
[    8.984489][  T138] Call Trace:
[    8.984591][  T138]  <TASK>
[    8.984663][  T138]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[    8.984803][  T138]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.985009][  T138]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.985113][  T138]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.985257][  T138]  __dev_notify_flags (net/core/dev.c:9787)
[    8.985395][  T138]  ? netif_change_name (net/core/dev.c:1495)
[    8.985532][  T138]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.985669][  T138]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    8.985805][  T138]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.986090][  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))
[    8.986304][  T138]  netif_change_flags (net/core/dev.c:9820)
[    8.986509][  T138]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.986718][  T138]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.986863][  T138]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.987098][  T138]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.987237][  T138]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.987374][  T138]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.987508][  T138]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.987642][  T138]  ? __kernel_text_address (kernel/extable.c:79)
[    8.987780][  T138]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.988011][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.988146][  T138]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.988287][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.988422][  T138]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.988557][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.988690][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.988824][  T138]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.989027][  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)
[    8.989162][  T138]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.989299][  T138]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.989436][  T138]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.989573][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.989711][  T138]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.989863][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.990052][  T138]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.990214][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.990368][  T138]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.990503][  T138]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.990641][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.990776][  T138]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.990969][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.991105][  T138]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.991254][  T138]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.991390][  T138]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.991526][  T138]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.991660][  T138]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.991794][  T138]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.991947][  T138]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.992083][  T138]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.992227][  T138]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.992368][  T138]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.992506][  T138]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.992645][  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))
[    8.992779][  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))
[    8.992923][  T138]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.993064][  T138]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.993244][  T138]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.993452][  T138]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.993661][  T138]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.993867][  T138]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.994036][  T138]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.994234][  T138]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.994437][  T138]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.994690][  T138]  ? move_addr_to_kernel (net/socket.c:258)
[    8.994871][  T138]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.995021][  T138]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.995159][  T138]  ___sys_sendmsg (net/socket.c:2752)
[    8.995306][  T138]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.995476][  T138]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.995624][  T138]  __sys_sendmsg (net/socket.c:2784)
[    8.995780][  T138]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.995994][  T138]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    8.996243][  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)
[    8.996378][  T138]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.996512][  T138]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.996648][  T138]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.996785][  T138]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.996928][  T138]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.997095][  T138] RIP: 0033:0x7fc540ae708e
[    8.997251][  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
[    8.997731][  T138] RSP: 002b:00007ffca3280b00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.997978][  T138] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc540ae708e
[    8.998198][  T138] RDX: 0000000000000000 RSI: 00007ffca3280bb0 RDI: 0000000000000003
[    8.998404][  T138] RBP: 00007ffca3280b10 R08: 0000000000000000 R09: 0000000000000000
[    8.998604][  T138] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d237
[    8.998804][  T138] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffca3281270
| [    9.184594][  T127] ------------[ cut here ]------------
| [    9.184932][  T127] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ethtool.sh/127
| [    9.185312][  T127] Modules linked in: netdevsim
| [    9.186037][  T127] Tainted: [W]=WARN
[    9.186212][  T127] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.186481][  T127] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.186738][  T127] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.187378][  T127] RSP: 0018:ffa00000006575a8 EFLAGS: 00010286
[    9.187631][  T127] RAX: 00000000ffffffa6 RBX: ff1100000e1979c0 RCX: 1ff40000000cae7b
[    9.187934][  T127] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000e197a70
[    9.188228][  T127] RBP: ff11000008f0a000 R08: 1fe2200001c32f4f R09: ff110000037e5270
[    9.188514][  T127] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[    9.188857][  T127] R13: 0000000000000000 R14: 0000000000000000 R15: ffa0000000657698
[    9.189261][  T127] FS:  00007fc1aa034740(0000) GS:ff110000782bb000(0000) knlGS:0000000000000000
[    9.189688][  T127] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.190055][  T127] CR2: 000055f8b244b8e0 CR3: 000000000c5bd006 CR4: 0000000000771ef0
[    9.190472][  T127] PKRU: 55555554
[    9.190732][  T127] Call Trace:
[    9.190978][  T127]  <TASK>
[    9.191116][  T127]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.191343][  T127]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.191519][  T127]  netif_close_many (net/core/dev.c:1804)
[    9.191731][  T127]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.191958][  T127]  ? __dev_close_many (net/core/dev.c:1781)
[    9.192167][  T127]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.192390][  T127]  netif_close_many_and_unlock (net/core/dev.c:12330)
[    9.192606][  T127]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[    9.192854][  T127]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[    9.193116][  T127]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.193339][  T127]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.193554][  T127]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.193766][  T127]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.193992][  T127]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.194257][  T127]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.194469][  T127]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.194678][  T127]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.194901][  T127]  ? 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)
[    9.195112][  T127]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.195334][  T127]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.195546][  T127]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.195762][  T127] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.195989][  T127]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.196202][  T127] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.196461][  T127] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.196713][  T127] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    9.196941][  T127]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    9.197200][  T127]  bus_remove_device (drivers/base/bus.c:657)
[    9.197425][  T127]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[    9.197635][  T127]  ? device_remove_file (drivers/base/core.c:3073)
[    9.197849][  T127]  device_del (drivers/base/core.c:3895)
[    9.198034][  T127]  ? __device_link_del (./include/linux/kobject.h:89)
[    9.198253][  T127]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.198466][  T127]  device_unregister (drivers/base/core.c:3936)
[    9.198677][  T127] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    9.198944][  T127]  ? 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))
[    9.199156][  T127]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[    9.199418][  T127]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.199631][  T127]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[    9.199842][  T127]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.200063][  T127]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.200241][  T127]  new_sync_write (fs/read_write.c:595)
[    9.200455][  T127]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.200668][  T127]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.200881][  T127]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.201153][  T127]  ? ksys_write (fs/read_write.c:740)
[    9.201381][  T127]  vfs_write (fs/read_write.c:688)
[    9.201556][  T127]  ksys_write (fs/read_write.c:740)
[    9.201727][  T127]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.201953][  T127]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.202169][  T127]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.202394][  T127]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.202606][  T127]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.202816][  T127]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.203040][  T127]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.203298][  T127] RIP: 0033:0x7fc1aa0a708e
[    9.203517][  T127] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.204144][  T127] RSP: 002b:00007fffc854f3a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.204447][  T127] RAX: ffffffffffffffda RBX: 00007fc1aa229580 RCX: 00007fc1aa0a708e
[    9.204743][  T127] RDX: 0000000000000005 RSI: 000055f8e60c5320 RDI: 0000000000000001
[    9.205050][  T127] RBP: 00007fffc854f3b0 R08: 0000000000000000 R09: 0000000000000000
[    9.205347][  T127] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    9.205635][  T127] R13: 0000000000000005 R14: 000055f8e60c5320 R15: 0000000000000000
| [    9.212657][  T127] ------------[ cut here ]------------
| [    9.212873][  T127] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ethtool.sh/127
| [    9.213237][  T127] Modules linked in: netdevsim
| [    9.213782][  T127] Tainted: [W]=WARN
[    9.213913][  T127] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.214147][  T127] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.214352][  T127] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 c8 c5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c604
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 c8 c5 f0 ff       	call   0xfffffffffff0c5da
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.214902][  T127] RSP: 0018:ffa0000000657728 EFLAGS: 00010286
[    9.215097][  T127] RAX: 00000000ffffffa6 RBX: ff110000034e33c0 RCX: 1ff40000000caeab
[    9.215330][  T127] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000034e3470
[    9.215559][  T127] RBP: ff11000008f0a000 R08: 1fe220000069c68f R09: ff110000037e5248
[    9.215788][  T127] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.216024][  T127] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.216262][  T127] FS:  00007fc1aa034740(0000) GS:ff1100007833b000(0000) knlGS:0000000000000000
[    9.216532][  T127] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.216726][  T127] CR2: 000010006acdd000 CR3: 000000000c5bd002 CR4: 0000000000771ef0
[    9.216965][  T127] PKRU: 55555554
[    9.217080][  T127] Call Trace:
[    9.217195][  T127]  <TASK>
[    9.217277][  T127]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.217473][  T127]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.217663][  T127]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.217816][  T127]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.217975][  T127]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.218130][  T127]  ? 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)
[    9.218290][  T127]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.218443][  T127]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.218596][  T127]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.218753][  T127] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.218925][  T127]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.219081][  T127] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.219278][  T127] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.219472][  T127] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    9.219627][  T127]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    9.219822][  T127]  bus_remove_device (drivers/base/bus.c:657)
[    9.219980][  T127]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[    9.220134][  T127]  ? device_remove_file (drivers/base/core.c:3073)
[    9.220293][  T127]  device_del (drivers/base/core.c:3895)
[    9.220413][  T127]  ? __device_link_del (./include/linux/kobject.h:89)
[    9.220569][  T127]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.220720][  T127]  device_unregister (drivers/base/core.c:3936)
[    9.220874][  T127] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    9.221075][  T127]  ? 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))
[    9.221231][  T127]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[    9.221425][  T127]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.221581][  T127]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[    9.221747][  T127]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.221904][  T127]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.222021][  T127]  new_sync_write (fs/read_write.c:595)
[    9.222174][  T127]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.222333][  T127]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.222489][  T127]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.222644][  T127]  ? ksys_write (fs/read_write.c:740)
[    9.222803][  T127]  vfs_write (fs/read_write.c:688)
[    9.222928][  T127]  ksys_write (fs/read_write.c:740)
[    9.223046][  T127]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.223201][  T127]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.223359][  T127]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.223514][  T127]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.223668][  T127]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.223824][  T127]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.223980][  T127]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.224170][  T127] RIP: 0033:0x7fc1aa0a708e
[    9.224333][  T127] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.224877][  T127] RSP: 002b:00007fffc854f3a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.225122][  T127] RAX: ffffffffffffffda RBX: 00007fc1aa229580 RCX: 00007fc1aa0a708e
[    9.225354][  T127] RDX: 0000000000000005 RSI: 000055f8e60c5320 RDI: 0000000000000001
[    9.225583][  T127] RBP: 00007fffc854f3b0 R08: 0000000000000000 R09: 0000000000000000
[    9.225810][  T127] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005


Finger prints:
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:unregister_netdevice_queue:nsim_destroy:__nsim_dev_port_del
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_close_many:netif_close_many_and_unlock:unregister_netdevice_many_notify
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:nsim_init_netdevsim:nsim_create