======================================
| xx__-> [    2.212865] ------------[ cut here ]------------
| [    2.212931] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: ip/169
| [    2.212992] Modules linked in: netdevsim
| [    2.213080] Tainted: [W]=WARN
[    2.213102] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.213141] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.213172] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	09 d9                	or     %ebx,%ecx
   7:	ff                   	(bad)
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 56 a6 fb ff       	call   0xfffffffffffba692
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 56 a6 fb ff       	call   0xfffffffffffba668
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.213270] RSP: 0018:ff4fe08d40273cc8 EFLAGS: 00010286
[    2.213304] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.213353] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff39b3d042fd2b00
[    2.213396] RBP: 0000000000000000 R08: ff39b3d0430b6b50 R09: ff39b3d0447b202c
[    2.213436] R10: ff39b3d042e3d118 R11: fefefefefefefeff R12: 0000000000000000
[    2.213478] R13: 0000000000000010 R14: ff39b3d042e3d000 R15: ff39b3d042fd2b00
[    2.213523] FS:  00007fd7c26c6840(0000) GS:ff39b3d0dc7da000(0000) knlGS:0000000000000000
[    2.213566] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.213603] CR2: 0000000000479648 CR3: 00000000045a2005 CR4: 0000000000771ef0
[    2.213647] PKRU: 55555554
[    2.213663] Call Trace:
[    2.213681]  <TASK>
[    2.213697]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.213720]  register_netdevice (net/core/dev.c:11488)
[    2.213744]  register_netdev (net/core/dev.c:11552)
[    2.213766]  loopback_net_init (drivers/net/loopback.c:218)
[    2.213791]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.213818]  ops_init (net/core/net_namespace.c:137)
[    2.213841]  setup_net (net/core/net_namespace.c:446)
[    2.213863]  copy_net_ns (net/core/net_namespace.c:579)
[    2.213883]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.213917]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.213946]  ksys_unshare (kernel/fork.c:3243)
[    2.213971]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.213995]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.214014]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.214044] RIP: 0033:0x7fd7c2988bcb
[    2.214066] 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
[    2.214162] RSP: 002b:00007fff426a4748 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    2.214208] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd7c2988bcb
[    2.214249] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    2.214289] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    2.214335] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff426a6970
[    2.214376] R13: 0000000000000001 R14: 00007fd7c26c66f8 R15: 00007fff426a786f
| [    2.219539] ------------[ cut here ]------------
| [    2.219603] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: echo/170
| [    2.219690] Modules linked in: netdevsim
| [    2.219843] Tainted: [W]=WARN
[    2.219898] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.219975] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.220039] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	09 d9                	or     %ebx,%ecx
   7:	ff                   	(bad)
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 56 a6 fb ff       	call   0xfffffffffffba692
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 56 a6 fb ff       	call   0xfffffffffffba668
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.220174] RSP: 0018:ff4fe08d403e79d0 EFLAGS: 00010286
[    2.220236] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.220313] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff39b3d042fdd800
[    2.220398] RBP: 0000000000000000 R08: ff39b3d0430bb750 R09: ff39b3d042cdd030
[    2.220478] R10: ff39b3d042ce4118 R11: fefefefefefefeff R12: 0000000000000000
[    2.220557] R13: 0000000000000010 R14: ff39b3d042ce4000 R15: ff39b3d042fdd800
[    2.220638] FS:  00007fdc173fd740(0000) GS:ff39b3d0dc75a000(0000) knlGS:0000000000000000
[    2.220717] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.220790] CR2: 000055e5d4c1a068 CR3: 00000000044fa006 CR4: 0000000000771ef0
[    2.220871] PKRU: 55555554
[    2.220926] Call Trace:
[    2.220975]  <TASK>
[    2.221024]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.221081]  register_netdevice (net/core/dev.c:11488)
[    2.221139] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.221205] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.221271] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    2.221345]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    2.221405]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    2.221471]  __driver_probe_device (drivers/base/dd.c:871)
[    2.221535]  driver_probe_device (drivers/base/dd.c:901)
[    2.221599]  __device_attach_driver (drivers/base/dd.c:1029)
[    2.221665]  bus_for_each_drv (drivers/base/bus.c:500)
[    2.221723]  __device_attach (drivers/base/dd.c:1101)
[    2.221780]  device_initial_probe (drivers/base/dd.c:1156)
[    2.221838]  bus_probe_device (drivers/base/bus.c:613)
[    2.221895]  device_add (drivers/base/core.c:3706)
[    2.221960] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    2.222026]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.222092]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.222151]  ksys_write (fs/read_write.c:740)
[    2.222209]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.222266]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.222337] RIP: 0033:0x7fdc1747008e
[    2.222423] 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
[    2.222560] RSP: 002b:00007ffc5bffd6e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.222640] RAX: ffffffffffffffda RBX: 00007fdc175f2580 RCX: 00007fdc1747008e
[    2.222717] RDX: 0000000000000005 RSI: 000055e5d4c19060 RDI: 0000000000000001
[    2.222794] RBP: 00007ffc5bffd6f0 R08: 0000000000000000 R09: 0000000000000000
[    2.222870] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    2.222953] R13: 0000000000000005 R14: 000055e5d4c19060 R15: 00007fdc175f2668
| [    2.223708] ------------[ cut here ]------------
| [    2.223773] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: echo/170
| [    2.223860] Modules linked in: netdevsim
| [    2.224019] Tainted: [W]=WARN
[    2.224074] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.224143] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.224206] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	09 d9                	or     %ebx,%ecx
   7:	ff                   	(bad)
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 56 a6 fb ff       	call   0xfffffffffffba692
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 56 a6 fb ff       	call   0xfffffffffffba668
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.224347] RSP: 0018:ff4fe08d403e79d0 EFLAGS: 00010286
[    2.224410] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.224489] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff39b3d042fddb00
[    2.224566] RBP: 0000000000000000 R08: ff39b3d0430bb410 R09: ff39b3d0447b7030
[    2.224642] R10: ff39b3d042ce0118 R11: fefefefefefefeff R12: 0000000000000000
[    2.224719] R13: 0000000000000010 R14: ff39b3d042ce0000 R15: ff39b3d042fddb00
[    2.224798] FS:  00007fdc173fd740(0000) GS:ff39b3d0dc75a000(0000) knlGS:0000000000000000
[    2.224878] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.224959] CR2: 0000562e6d99d0a8 CR3: 00000000044fa006 CR4: 0000000000771ef0
[    2.225039] PKRU: 55555554
[    2.225087] Call Trace:
[    2.225135]  <TASK>
[    2.225184]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.225241]  register_netdevice (net/core/dev.c:11488)
[    2.225299] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.225373] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.225438] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    2.225504]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    2.225561]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    2.225625]  __driver_probe_device (drivers/base/dd.c:871)
[    2.225690]  driver_probe_device (drivers/base/dd.c:901)
[    2.225750]  __device_attach_driver (drivers/base/dd.c:1029)
[    2.225814]  bus_for_each_drv (drivers/base/bus.c:500)
[    2.225872]  __device_attach (drivers/base/dd.c:1101)
[    2.225935]  device_initial_probe (drivers/base/dd.c:1156)
[    2.225993]  bus_probe_device (drivers/base/bus.c:613)
[    2.226050]  device_add (drivers/base/core.c:3706)
[    2.226108] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    2.226174]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.226239]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.226296]  ksys_write (fs/read_write.c:740)
[    2.226358]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.226417]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.226483] RIP: 0033:0x7fdc1747008e
[    2.226540] 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
[    2.226673] RSP: 002b:00007ffc5bffd6e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.226750] RAX: ffffffffffffffda RBX: 00007fdc175f2580 RCX: 00007fdc1747008e
[    2.226829] RDX: 0000000000000005 RSI: 000055e5d4c19060 RDI: 0000000000000001
[    2.226906] RBP: 00007ffc5bffd6f0 R08: 0000000000000000 R09: 0000000000000000
[    2.226991] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    2.227066] R13: 0000000000000005 R14: 000055e5d4c19060 R15: 00007fdc175f2668
| [    2.227420] ------------[ cut here ]------------
| [    2.227485] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: echo/170
| [    2.227573] Modules linked in: netdevsim
| [    2.227722] Tainted: [W]=WARN
[    2.227777] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.227851] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.227925] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	09 d9                	or     %ebx,%ecx
   7:	ff                   	(bad)
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 56 a6 fb ff       	call   0xfffffffffffba692
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 56 a6 fb ff       	call   0xfffffffffffba668
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.228059] RSP: 0018:ff4fe08d403e79d0 EFLAGS: 00010286
[    2.228122] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.228199] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff39b3d042fddb00
[    2.228275] RBP: 0000000000000000 R08: ff39b3d04309fd90 R09: ff39b3d0447b5030
[    2.228360] R10: ff39b3d0447dc118 R11: fefefefefefefeff R12: 0000000000000000
[    2.228438] R13: 0000000000000010 R14: ff39b3d0447dc000 R15: ff39b3d042fddb00
[    2.228523] FS:  00007fdc173fd740(0000) GS:ff39b3d0dc75a000(0000) knlGS:0000000000000000
[    2.228602] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.228672] CR2: 0000562e6d99d0a8 CR3: 00000000044fa006 CR4: 0000000000771ef0
[    2.228751] PKRU: 55555554
[    2.228799] Call Trace:
[    2.228848]  <TASK>
[    2.228896]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.228964]  register_netdevice (net/core/dev.c:11488)
[    2.229021] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.229087] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.229152] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    2.229217]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    2.229275]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    2.229345]  __driver_probe_device (drivers/base/dd.c:871)
[    2.229410]  driver_probe_device (drivers/base/dd.c:901)
[    2.229470]  __device_attach_driver (drivers/base/dd.c:1029)
[    2.229535]  bus_for_each_drv (drivers/base/bus.c:500)
[    2.229592]  __device_attach (drivers/base/dd.c:1101)
[    2.229650]  device_initial_probe (drivers/base/dd.c:1156)
[    2.229707]  bus_probe_device (drivers/base/bus.c:613)
[    2.229763]  device_add (drivers/base/core.c:3706)
[    2.229820] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    2.229884]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.229955]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.230012]  ksys_write (fs/read_write.c:740)
[    2.230070]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.230127]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.230191] RIP: 0033:0x7fdc1747008e
[    2.230247] 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
[    2.230388] RSP: 002b:00007ffc5bffd6e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.230466] RAX: ffffffffffffffda RBX: 00007fdc175f2580 RCX: 00007fdc1747008e
[    2.230544] RDX: 0000000000000005 RSI: 000055e5d4c19060 RDI: 0000000000000001
[    2.230622] RBP: 00007ffc5bffd6f0 R08: 0000000000000000 R09: 0000000000000000
[    2.230699] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    2.230776] R13: 0000000000000005 R14: 000055e5d4c19060 R15: 00007fdc175f2668
| [    2.231157] ------------[ cut here ]------------
| [    2.231222] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: echo/170
| [    2.231309] Modules linked in: netdevsim
| [    2.231465] Tainted: [W]=WARN
[    2.231520] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.231590] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.231653] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	09 d9                	or     %ebx,%ecx
   7:	ff                   	(bad)
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 56 a6 fb ff       	call   0xfffffffffffba692
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 56 a6 fb ff       	call   0xfffffffffffba668
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.231786] RSP: 0018:ff4fe08d403e79d0 EFLAGS: 00010286
[    2.231849] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.231940] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff39b3d042fddb00
[    2.232018] RBP: 0000000000000000 R08: ff39b3d04330f310 R09: ff39b3d0447f2030
[    2.232097] R10: ff39b3d0447d8118 R11: fefefefefefefeff R12: 0000000000000000
[    2.232173] R13: 0000000000000010 R14: ff39b3d0447d8000 R15: ff39b3d042fddb00
[    2.232257] FS:  00007fdc173fd740(0000) GS:ff39b3d0dc75a000(0000) knlGS:0000000000000000
[    2.232343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.232414] CR2: 0000562e6d99d0a8 CR3: 00000000044fa006 CR4: 0000000000771ef0
[    2.232496] PKRU: 55555554
[    2.232544] Call Trace:
[    2.232593]  <TASK>
[    2.232641]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.232698]  register_netdevice (net/core/dev.c:11488)
[    2.232756] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.232822] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.232887] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    2.232959]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    2.233016]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    2.233079]  __driver_probe_device (drivers/base/dd.c:871)
[    2.233143]  driver_probe_device (drivers/base/dd.c:901)
[    2.233201]  __device_attach_driver (drivers/base/dd.c:1029)
[    2.233266]  bus_for_each_drv (drivers/base/bus.c:500)
[    2.233323]  __device_attach (drivers/base/dd.c:1101)
[    2.233388]  device_initial_probe (drivers/base/dd.c:1156)
[    2.233445]  bus_probe_device (drivers/base/bus.c:613)
[    2.233502]  device_add (drivers/base/core.c:3706)
[    2.233559] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    2.233625]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.233690]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.233747]  ksys_write (fs/read_write.c:740)
[    2.233805]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.233862]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.233954] RIP: 0033:0x7fdc1747008e
[    2.234013] 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
[    2.234149] RSP: 002b:00007ffc5bffd6e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.234226] RAX: ffffffffffffffda RBX: 00007fdc175f2580 RCX: 00007fdc1747008e
[    2.234303] RDX: 0000000000000005 RSI: 000055e5d4c19060 RDI: 0000000000000001
[    2.234387] RBP: 00007ffc5bffd6f0 R08: 0000000000000000 R09: 0000000000000000
[    2.234466] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[    2.234546] R13: 0000000000000005 R14: 000055e5d4c19060 R15: 00007fdc175f2668
| [    2.293602] ------------[ cut here ]------------
| [    2.293684] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink_in_netn/156
| [    2.293778] Modules linked in: netdevsim
| [    2.293892] Tainted: [W]=WARN
[    2.293928] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.293989] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.294032] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	09 d9                	or     %ebx,%ecx
   7:	ff                   	(bad)
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 56 a6 fb ff       	call   0xfffffffffffba692
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 56 a6 fb ff       	call   0xfffffffffffba668
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.294194] RSP: 0018:ff4fe08d403bfb88 EFLAGS: 00010286
[    2.294238] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.294304] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff39b3d042fdd800
[    2.294379] RBP: 0000000000000000 R08: ff39b3d04330f310 R09: ff39b3d0447d4830
[    2.294461] R10: ff39b3d0447d8118 R11: fefefefefefefeff R12: 0000000000000000
[    2.294529] R13: 0000000000000011 R14: ff39b3d0447d8000 R15: ff39b3d042fdd800
[    2.294570] FS:  00007ff3707c1b80(0000) GS:ff39b3d0dc65a000(0000) knlGS:0000000000000000
[    2.294648] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.294721] CR2: 000055f58c180040 CR3: 0000000003135002 CR4: 0000000000771ef0
[    2.294801] PKRU: 55555554
[    2.294815] Call Trace:
[    2.294829]  <TASK>
[    2.294850]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.294915]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.294948] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.294986] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.295023] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.295073] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    2.295124]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    2.295156]  bus_remove_device (drivers/base/bus.c:657)
[    2.295178]  ? device_remove_attrs (drivers/base/core.c:2844 drivers/base/core.c:2977)
[    2.295242]  device_del (drivers/base/core.c:3895)
[    2.295263]  device_unregister (drivers/base/core.c:3936)
[    2.295297] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    2.295483]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.295548]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.295569]  ksys_write (fs/read_write.c:740)
[    2.295627]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.295649]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.295716] RIP: 0033:0x7ff37083308e
[    2.295772] 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
[    2.295906] RSP: 002b:00007ffdda72e710 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.295981] RAX: ffffffffffffffda RBX: 00007ff3709b5580 RCX: 00007ff37083308e
[    2.296052] RDX: 0000000000000003 RSI: 000055f596967590 RDI: 0000000000000001
[    2.296148] RBP: 00007ffdda72e720 R08: 0000000000000000 R09: 0000000000000000
[    2.296230] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[    2.296316] R13: 0000000000000003 R14: 000055f596967590 R15: 0000000000000000
| [    2.307065] ------------[ cut here ]------------
| [    2.307113] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink_in_netn/156
| [    2.307177] Modules linked in: netdevsim
| [    2.307261] Tainted: [W]=WARN
[    2.307282] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.307312] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.307345] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	09 d9                	or     %ebx,%ecx
   7:	ff                   	(bad)
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 56 a6 fb ff       	call   0xfffffffffffba692
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 56 a6 fb ff       	call   0xfffffffffffba668
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.307448] RSP: 0018:ff4fe08d403bfb88 EFLAGS: 00010286
[    2.307478] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.307522] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff39b3d042fdd800
[    2.307567] RBP: 0000000000000000 R08: ff39b3d04309fd90 R09: ff39b3d0447d6830
[    2.307605] R10: ff39b3d0447dc118 R11: fefefefefefefeff R12: 0000000000000000
[    2.307648] R13: 0000000000000011 R14: ff39b3d0447dc000 R15: ff39b3d042fdd800
[    2.307691] FS:  00007ff3707c1b80(0000) GS:ff39b3d0dc65a000(0000) knlGS:0000000000000000
[    2.307738] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.307774] CR2: 000055f58c180040 CR3: 0000000003135002 CR4: 0000000000771ef0
[    2.307816] PKRU: 55555554
[    2.307831] Call Trace:
[    2.307851]  <TASK>
[    2.307864]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.307896]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.307927] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.307957]  ? devl_port_unregister (net/devlink/port.c:1139)
[    2.307987] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.308019] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.308047] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    2.308077]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    2.308106]  bus_remove_device (drivers/base/bus.c:657)
[    2.308132]  ? device_remove_attrs (drivers/base/core.c:2844 drivers/base/core.c:2977)
[    2.308163]  device_del (drivers/base/core.c:3895)
[    2.308184]  device_unregister (drivers/base/core.c:3936)
[    2.308205] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    2.308231]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.308261]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.308283]  ksys_write (fs/read_write.c:740)
[    2.308305]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.308333]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.308364] RIP: 0033:0x7ff37083308e
[    2.308382] 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
[    2.308482] RSP: 002b:00007ffdda72e710 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.308524] RAX: ffffffffffffffda RBX: 00007ff3709b5580 RCX: 00007ff37083308e
[    2.308564] RDX: 0000000000000003 RSI: 000055f596967590 RDI: 0000000000000001
[    2.308605] RBP: 00007ffdda72e720 R08: 0000000000000000 R09: 0000000000000000
[    2.308650] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[    2.308699] R13: 0000000000000003 R14: 000055f596967590 R15: 0000000000000000
| [    2.321067] ------------[ cut here ]------------
| [    2.321127] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink_in_netn/156
| [    2.321193] Modules linked in: netdevsim
| [    2.321274] Tainted: [W]=WARN
[    2.321296] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.321337] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.321367] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	09 d9                	or     %ebx,%ecx
   7:	ff                   	(bad)
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 56 a6 fb ff       	call   0xfffffffffffba692
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 56 a6 fb ff       	call   0xfffffffffffba668
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.321467] RSP: 0018:ff4fe08d403bfb88 EFLAGS: 00010286
[    2.321499] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.321547] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff39b3d042fdda00
[    2.321591] RBP: 0000000000000000 R08: ff39b3d0430bb410 R09: ff39b3d0447e1830
[    2.321632] R10: ff39b3d042ce0118 R11: fefefefefefefeff R12: 0000000000000000
[    2.321675] R13: 0000000000000011 R14: ff39b3d042ce0000 R15: ff39b3d042fdda00
[    2.321717] FS:  00007ff3707c1b80(0000) GS:ff39b3d0dc65a000(0000) knlGS:0000000000000000
[    2.321773] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.321809] CR2: 000055f58c180040 CR3: 0000000003135002 CR4: 0000000000771ef0
[    2.321854] PKRU: 55555554
[    2.321867] Call Trace:
[    2.321882]  <TASK>
[    2.321896]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.321932]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.321963] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.321994]  ? devl_port_unregister (net/devlink/port.c:1139)
[    2.322025] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.322054] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.322085] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    2.322115]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    2.322147]  bus_remove_device (drivers/base/bus.c:657)
[    2.322171]  ? device_remove_attrs (drivers/base/core.c:2844 drivers/base/core.c:2977)
[    2.322197]  device_del (drivers/base/core.c:3895)
[    2.322218]  device_unregister (drivers/base/core.c:3936)
[    2.322241] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    2.322272]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.322302]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.322321]  ksys_write (fs/read_write.c:740)
[    2.322351]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.322371]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.322401] RIP: 0033:0x7ff37083308e
[    2.322424] 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
[    2.322525] RSP: 002b:00007ffdda72e710 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.322569] RAX: ffffffffffffffda RBX: 00007ff3709b5580 RCX: 00007ff37083308e
[    2.322612] RDX: 0000000000000003 RSI: 000055f596967590 RDI: 0000000000000001
[    2.322653] RBP: 00007ffdda72e720 R08: 0000000000000000 R09: 0000000000000000
[    2.322697] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[    2.322741] R13: 0000000000000003 R14: 000055f596967590 R15: 0000000000000000
| [    2.335988] ------------[ cut here ]------------
| [    2.336070] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink_in_netn/156
| [    2.336205] Modules linked in: netdevsim
| [    2.336380] Tainted: [W]=WARN
[    2.336417] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.336473] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.336541] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	09 d9                	or     %ebx,%ecx
   7:	ff                   	(bad)
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 56 a6 fb ff       	call   0xfffffffffffba692
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 56 a6 fb ff       	call   0xfffffffffffba668
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.336756] RSP: 0018:ff4fe08d403bfb88 EFLAGS: 00010286
[    2.336836] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.336927] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff39b3d042fdda00
[    2.337041] RBP: 0000000000000000 R08: ff39b3d0430bb750 R09: ff39b3d0447d0830
[    2.337141] R10: ff39b3d042ce4118 R11: fefefefefefefeff R12: 0000000000000000
[    2.337237] R13: 0000000000000011 R14: ff39b3d042ce4000 R15: ff39b3d042fdda00
[    2.337321] FS:  00007ff3707c1b80(0000) GS:ff39b3d0dc65a000(0000) knlGS:0000000000000000
[    2.337426] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.337500] CR2: 000055f58c180040 CR3: 0000000003135002 CR4: 0000000000771ef0
[    2.337592] PKRU: 55555554
[    2.337613] Call Trace:
[    2.337649]  <TASK>
[    2.337685]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.337741]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.337816] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.337875]  ? devl_port_unregister (net/devlink/port.c:1139)
[    2.337945] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.338011] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.338075] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    2.338141]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    2.338205]  bus_remove_device (drivers/base/bus.c:657)
[    2.338262]  ? device_remove_attrs (drivers/base/core.c:2844 drivers/base/core.c:2977)
[    2.338320]  device_del (drivers/base/core.c:3895)
[    2.338376]  device_unregister (drivers/base/core.c:3936)
[    2.338423] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    2.338486]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.338535]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.338583]  ksys_write (fs/read_write.c:740)
[    2.338606]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.338654]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.338682] RIP: 0033:0x7ff37083308e
[    2.338724] 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
[    2.338940] RSP: 002b:00007ffdda72e710 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.339056] RAX: ffffffffffffffda RBX: 00007ff3709b5580 RCX: 00007ff37083308e
[    2.339147] RDX: 0000000000000003 RSI: 000055f596967590 RDI: 0000000000000001
[    2.339257] RBP: 00007ffdda72e720 R08: 0000000000000000 R09: 0000000000000000
[    2.339381] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[    2.339480] R13: 0000000000000003 R14: 000055f596967590 R15: 0000000000000000
| [    2.365525] ------------[ cut here ]------------
| [    2.365601] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/64
| [    2.365704] Modules linked in: netdevsim
| [    2.365850] Tainted: [W]=WARN
[    2.365899] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.365954] Workqueue: netns cleanup_net
[    2.365984] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.366049] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	09 d9                	or     %ebx,%ecx
   7:	ff                   	(bad)
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 56 a6 fb ff       	call   0xfffffffffffba692
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 56 a6 fb ff       	call   0xfffffffffffba668
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.366194] RSP: 0018:ff4fe08d40237c78 EFLAGS: 00010286
[    2.366246] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.366337] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff39b3d042fd2b00
[    2.366410] RBP: 0000000000000000 R08: ff39b3d0430b6b50 R09: ff39b3d0447ad02c
[    2.366499] R10: ff39b3d042e3d118 R11: fefefefefefefeff R12: 0000000000000000
[    2.366571] R13: 0000000000000011 R14: ff39b3d042e3d000 R15: ff39b3d042fd2b00
[    2.366612] FS:  0000000000000000(0000) GS:ff39b3d0dc7da000(0000) knlGS:0000000000000000
[    2.366688] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.366763] CR2: 00007f039474ac20 CR3: 0000000006658006 CR4: 0000000000771ef0
[    2.366868] PKRU: 55555554
[    2.366899] Call Trace:
[    2.366947]  <TASK>
[    2.366987]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.367021]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    2.367093]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    2.367134]  cleanup_net (net/core/net_namespace.c:702)
[    2.367190]  process_one_work (kernel/workqueue.c:3314)
[    2.367238]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.367287]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.367308]  kthread (kernel/kthread.c:436)
[    2.367367]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.367417]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.367478]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:default_device_exit_batch:ops_undo_list:cleanup_net
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:unregister_netdevice_queue:nsim_destroy:__nsim_dev_port_del
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:nsim_create:__nsim_dev_port_add