======================================
| xx__-> [    2.179140] ------------[ cut here ]------------
| [    2.179180] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: nexthop.sh/158
| [    2.179223] Modules linked in: netdevsim
| [    2.179278] Tainted: [W]=WARN
[    2.179291] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.179313] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.179330] 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
[    2.179389] RSP: 0018:ff8f0659403f79d0 EFLAGS: 00010286
[    2.179410] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.179433] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061d00
[    2.179457] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd42029030
[    2.179481] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.179504] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd43061d00
[    2.179535] FS:  00007f932b271b80(0000) GS:ff436afdcbbda000(0000) knlGS:0000000000000000
[    2.179561] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.179582] CR2: 0000557edfafbe88 CR3: 000000000339a003 CR4: 0000000000771ef0
[    2.179605] PKRU: 55555554
[    2.179615] Call Trace:
[    2.179630]  <TASK>
[    2.179639]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.179658]  register_netdevice (net/core/dev.c:11488)
[    2.179672] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.179697] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.179716] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    2.179733]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    2.179748]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    2.179764]  __driver_probe_device (drivers/base/dd.c:871)
[    2.179785]  driver_probe_device (drivers/base/dd.c:901)
[    2.179798]  __device_attach_driver (drivers/base/dd.c:1029)
[    2.179815]  bus_for_each_drv (drivers/base/bus.c:500)
[    2.179829]  __device_attach (drivers/base/dd.c:1101)
[    2.179846]  device_initial_probe (drivers/base/dd.c:1156)
[    2.179858]  bus_probe_device (drivers/base/bus.c:613)
[    2.179873]  device_add (drivers/base/core.c:3706)
[    2.179885] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    2.179901]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.179922]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.179937]  ksys_write (fs/read_write.c:740)
[    2.179949]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.179964]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.179980] RIP: 0033:0x7f932b2e308e
[    2.179995] 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
[    2.180056] RSP: 002b:00007ffde6a35230 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.180078] RAX: ffffffffffffffda RBX: 00007f932b465580 RCX: 00007f932b2e308e
[    2.180110] RDX: 0000000000000007 RSI: 0000557edfafae80 RDI: 0000000000000001
[    2.180131] RBP: 00007ffde6a35240 R08: 0000000000000000 R09: 0000000000000000
[    2.180154] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000007
[    2.180176] R13: 0000000000000007 R14: 0000557edfafae80 R15: 0000000000000000
| [    2.185132] ------------[ cut here ]------------
| [    2.185200] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/180
| [    2.185291] Modules linked in: netdevsim
| [    2.185447] Tainted: [W]=WARN
[    2.185503] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.185581] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.185644] 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
[    2.185775] RSP: 0018:ff8f065940347cc8 EFLAGS: 00010286
[    2.185839] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.185917] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd41d74700
[    2.185996] RBP: 0000000000000000 R08: ff436afd41d4b790 R09: ff436afd4649d02c
[    2.186073] R10: ff436afd46498118 R11: fefefefefefefeff R12: 0000000000000000
[    2.186159] R13: 0000000000000010 R14: ff436afd46498000 R15: ff436afd41d74700
[    2.186240] FS:  00007f266ff74840(0000) GS:ff436afdcbb5a000(0000) knlGS:0000000000000000
[    2.186320] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.186389] CR2: 0000000000479648 CR3: 000000000306a006 CR4: 0000000000771ef0
[    2.186469] PKRU: 55555554
[    2.186526] Call Trace:
[    2.186579]  <TASK>
[    2.186629]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.186688]  register_netdevice (net/core/dev.c:11488)
[    2.186748]  register_netdev (net/core/dev.c:11552)
[    2.186807]  loopback_net_init (drivers/net/loopback.c:218)
[    2.186868]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.186944]  ops_init (net/core/net_namespace.c:137)
[    2.187004]  setup_net (net/core/net_namespace.c:446)
[    2.187063]  copy_net_ns (net/core/net_namespace.c:579)
[    2.187136]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.187202]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.187268]  ksys_unshare (kernel/fork.c:3243)
[    2.187330]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.187388]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.187449]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.187515] RIP: 0033:0x7f2670236bcb
[    2.187582] 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
[    2.187720] RSP: 002b:00007fff5e8775e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    2.187799] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f2670236bcb
[    2.187878] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    2.187957] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    2.188035] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff5e879810
[    2.188120] R13: 0000000000000001 R14: 00007f266ff746f8 R15: 00007fff5e87a881
| [    2.191897] ------------[ cut here ]------------
| [    2.191933] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink/181
| [    2.191990] Modules linked in: netdevsim
| [    2.192078] Tainted: [W]=WARN
[    2.192108] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.192143] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.192173] 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
[    2.192268] RSP: 0018:ff8f06594026b908 EFLAGS: 00010286
[    2.192296] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.192339] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061d00
[    2.192379] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd452ec830
[    2.192419] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.192459] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd43061d00
[    2.192506] FS:  00007f808ba66840(0000) GS:ff436afdcba5a000(0000) knlGS:0000000000000000
[    2.192562] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.192596] CR2: 00007f808bddf493 CR3: 000000000128f003 CR4: 0000000000771ef0
[    2.192641] PKRU: 55555554
[    2.192654] Call Trace:
[    2.192670]  <TASK>
[    2.192685]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.192715]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.192744] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.192775] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.192804] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.192837] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[    2.192864]  devlink_reload (net/devlink/dev.c:462)
[    2.192886]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.192914]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.192949]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.192978]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.193000]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.193028]  ? devlink_reload (net/devlink/dev.c:486)
[    2.193047]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.193076]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.193100]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.193119]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.193141]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.193162]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.193181]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.193204]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.193223]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.193251]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.193282] RIP: 0033:0x7f808bca008e
[    2.193303] 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
[    2.193394] RSP: 002b:00007ffdecd73480 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.193435] RAX: ffffffffffffffda RBX: 000000003add8980 RCX: 00007f808bca008e
[    2.193479] RDX: 0000000000000040 RSI: 000000003add8ba0 RDI: 0000000000000005
[    2.193523] RBP: 00007ffdecd73490 R08: 00007f808bf54980 R09: 000000000000000c
[    2.193563] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.193605] R13: 000000003add8980 R14: 0000000000000000 R15: 0000000000000001
| [    2.232283] ------------[ cut here ]------------
| [    2.232341] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink/181
| [    2.232394] Modules linked in: netdevsim
| [    2.232479] Tainted: [W]=WARN
[    2.232504] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.232540] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.232571] 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
[    2.232670] RSP: 0018:ff8f06594026b888 EFLAGS: 00010286
[    2.232702] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.232743] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd4303eb00
[    2.232785] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd419bb030
[    2.232833] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.232876] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd4303eb00
[    2.232919] FS:  00007f808ba66840(0000) GS:ff436afdcba5a000(0000) knlGS:0000000000000000
[    2.232963] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.233000] CR2: 00007f808bddf493 CR3: 000000000128f003 CR4: 0000000000771ef0
[    2.233050] PKRU: 55555554
[    2.233070] Call Trace:
[    2.233083]  <TASK>
[    2.233106]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.233130]  register_netdevice (net/core/dev.c:11488)
[    2.233154] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.233186] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.233217] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[    2.233245]  devlink_reload (net/devlink/dev.c:475)
[    2.233267]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.233296]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.233324]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.233358]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.233382]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.233413]  ? devlink_reload (net/devlink/dev.c:486)
[    2.233436]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.233468]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.233490]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.233512]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.233537]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.233561]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.233581]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.233604]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.233626]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.233648]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.233676] RIP: 0033:0x7f808bca008e
[    2.233696] 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
[    2.233788] RSP: 002b:00007ffdecd73480 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.233827] RAX: ffffffffffffffda RBX: 000000003add8980 RCX: 00007f808bca008e
[    2.233866] RDX: 0000000000000040 RSI: 000000003add8ba0 RDI: 0000000000000005
[    2.233908] RBP: 00007ffdecd73490 R08: 00007f808bf54980 R09: 000000000000000c
[    2.233949] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.233990] R13: 000000003add8980 R14: 0000000000000000 R15: 0000000000000001
| [    2.237581] ------------[ cut here ]------------
| [    2.237647] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/183
| [    2.237735] Modules linked in: netdevsim
| [    2.237891] Tainted: [W]=WARN
[    2.237948] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.238019] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.238085] 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
[    2.238226] RSP: 0018:ff8f0659403ff870 EFLAGS: 00010286
[    2.238292] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.238371] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061c00
[    2.238451] RBP: 0000000000000000 R08: ff436afd43386510 R09: ff436afd464aa030
[    2.238538] R10: ff436afd4649d118 R11: fefefefefefefeff R12: 0000000000000000
[    2.238618] R13: 0000000000000010 R14: ff436afd4649d000 R15: ff436afd43061c00
[    2.238700] FS:  00007fe557798840(0000) GS:ff436afdcbb5a000(0000) knlGS:0000000000000000
[    2.238781] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.238853] CR2: 00000000004a77b8 CR3: 000000000306a002 CR4: 0000000000771ef0
[    2.238933] PKRU: 55555554
[    2.238984] Call Trace:
[    2.239035]  <TASK>
[    2.239095]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.239155]  __dev_notify_flags (net/core/dev.c:9787)
[    2.239216]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    2.239276]  rtnl_newlink (net/core/rtnetlink.c:3914 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    2.239336]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    2.239402]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    2.239462]  ? get_page_from_freelist (mm/page_alloc.c:1856 mm/page_alloc.c:1866 mm/page_alloc.c:3946)
[    2.239536]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.239611]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.239671]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.239731]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.239790]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    2.239852]  ___sys_sendmsg (net/socket.c:2752)
[    2.239911]  __sys_sendmsg (net/socket.c:2784)
[    2.239971]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.240029]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.240101] RIP: 0033:0x7fe5579d208e
[    2.240160] 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
[    2.240298] RSP: 002b:00007ffc4bf233c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    2.240378] RAX: ffffffffffffffda RBX: 00007ffc4bf23b78 RCX: 00007fe5579d208e
[    2.240457] RDX: 0000000000000000 RSI: 00007ffc4bf23470 RDI: 0000000000000005
[    2.240539] RBP: 00007ffc4bf233d0 R08: 0000000000000000 R09: 0000000000000000
[    2.240619] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c51e
[    2.240698] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc4bf23b40
| [    2.273280] ------------[ cut here ]------------
| [    2.273306] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: devlink/208
| [    2.273338] Modules linked in: netdevsim
| [    2.273389] Tainted: [W]=WARN
[    2.273403] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.273421] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.273442] 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
[    2.273495] RSP: 0018:ff8f0659403bf908 EFLAGS: 00010286
[    2.273513] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.273545] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061900
[    2.273571] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd433ab830
[    2.273593] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.273616] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd43061900
[    2.273640] FS:  00007f6b9caf1840(0000) GS:ff436afdcbbda000(0000) knlGS:0000000000000000
[    2.273670] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.273688] CR2: 00007f6b9d0a6004 CR3: 0000000007a5d006 CR4: 0000000000771ef0
[    2.273710] PKRU: 55555554
[    2.273718] Call Trace:
[    2.273728]  <TASK>
[    2.273740]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.273763]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.273781] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.273799] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.273815] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.273832] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[    2.273849]  devlink_reload (net/devlink/dev.c:462)
[    2.273864]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.273879]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.273896]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.273919]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.273932]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.273950]  ? devlink_reload (net/devlink/dev.c:486)
[    2.273967]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.273982]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.273994]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.274007]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.274019]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.274035]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.274047]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.274060]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.274072]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.274098]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.274115] RIP: 0033:0x7f6b9cd2b08e
[    2.274127] 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
[    2.274187] RSP: 002b:00007fff874dc1b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.274211] RAX: ffffffffffffffda RBX: 0000000022e6f980 RCX: 00007f6b9cd2b08e
[    2.274235] RDX: 0000000000000038 RSI: 0000000022e6fba0 RDI: 0000000000000005
[    2.274262] RBP: 00007fff874dc1c0 R08: 00007f6b9cfdf980 R09: 000000000000000c
[    2.274291] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.274315] R13: 0000000022e6f980 R14: 0000000000000000 R15: 0000000000000003
| [    2.304280] ------------[ cut here ]------------
| [    2.304315] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: devlink/208
| [    2.304343] Modules linked in: netdevsim
| [    2.304387] Tainted: [W]=WARN
[    2.304398] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.304414] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.304436] 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
[    2.304490] RSP: 0018:ff8f0659403bf888 EFLAGS: 00010286
[    2.304506] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.304533] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061900
[    2.304559] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd42029030
[    2.304586] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.304607] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd43061900
[    2.304634] FS:  00007f6b9caf1840(0000) GS:ff436afdcbbda000(0000) knlGS:0000000000000000
[    2.304659] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.304682] CR2: 00007f6b9d0a6004 CR3: 0000000007a5d006 CR4: 0000000000771ef0
[    2.304705] PKRU: 55555554
[    2.304714] Call Trace:
[    2.304722]  <TASK>
[    2.304729]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.304742]  register_netdevice (net/core/dev.c:11488)
[    2.304756] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.304773] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.304794] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[    2.304810]  devlink_reload (net/devlink/dev.c:475)
[    2.304822]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.304837]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.304858]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.304873]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.304885]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.304902]  ? devlink_reload (net/devlink/dev.c:486)
[    2.304912]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.304930]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.304942]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.304957]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.304968]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.304979]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.304993]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.305006]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.305019]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.305031]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.305046] RIP: 0033:0x7f6b9cd2b08e
[    2.305057] 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
[    2.305120] RSP: 002b:00007fff874dc1b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.305141] RAX: ffffffffffffffda RBX: 0000000022e6f980 RCX: 00007f6b9cd2b08e
[    2.305169] RDX: 0000000000000038 RSI: 0000000022e6fba0 RDI: 0000000000000005
[    2.305195] RBP: 00007fff874dc1c0 R08: 00007f6b9cfdf980 R09: 000000000000000c
[    2.305224] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.305244] R13: 0000000022e6f980 R14: 0000000000000000 R15: 0000000000000003
| [    2.326457] ------------[ cut here ]------------
| [    2.326531] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: devlink/218
| [    2.326619] Modules linked in: netdevsim
| [    2.326770] Tainted: [W]=WARN
[    2.326826] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.326896] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.326961] 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
[    2.327099] RSP: 0018:ff8f065940437908 EFLAGS: 00010286
[    2.327164] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.327241] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061e00
[    2.327317] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd433ab030
[    2.327394] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.327471] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd43061e00
[    2.327556] FS:  00007ff2df090840(0000) GS:ff436afdcbb5a000(0000) knlGS:0000000000000000
[    2.327636] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.327705] CR2: 00007ff2df645004 CR3: 0000000006476003 CR4: 0000000000771ef0
[    2.327785] PKRU: 55555554
[    2.327834] Call Trace:
[    2.327884]  <TASK>
[    2.327934]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.327999]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.328064] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.328136] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.328203] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.328269] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[    2.328334]  devlink_reload (net/devlink/dev.c:462)
[    2.328393]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.328458]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.328530]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.328598]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.328656]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.328720]  ? devlink_reload (net/devlink/dev.c:486)
[    2.328778]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.328843]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.328901]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.328960]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.329019]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.329078]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.329150]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.329209]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.329267]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.329325]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.329390] RIP: 0033:0x7ff2df2ca08e
[    2.329447] 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
[    2.329584] RSP: 002b:00007ffe383cbed0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.329666] RAX: ffffffffffffffda RBX: 000000003622d980 RCX: 00007ff2df2ca08e
[    2.329742] RDX: 0000000000000038 RSI: 000000003622dba0 RDI: 0000000000000005
[    2.329820] RBP: 00007ffe383cbee0 R08: 00007ff2df57e980 R09: 000000000000000c
[    2.329898] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.329975] R13: 000000003622d980 R14: 0000000000000000 R15: 0000000000000003
| [    2.354262] ------------[ cut here ]------------
| [    2.354343] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: devlink/218
| [    2.354446] Modules linked in: netdevsim
| [    2.354620] Tainted: [W]=WARN
[    2.354677] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.354748] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.354814] 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
[    2.354946] RSP: 0018:ff8f065940437888 EFLAGS: 00010286
[    2.355012] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.355100] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061e00
[    2.355176] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd464aa030
[    2.355253] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.355332] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd43061e00
[    2.355413] FS:  00007ff2df090840(0000) GS:ff436afdcbb5a000(0000) knlGS:0000000000000000
[    2.355493] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.355569] CR2: 00007ff2df645004 CR3: 0000000006476003 CR4: 0000000000771ef0
[    2.355648] PKRU: 55555554
[    2.355698] Call Trace:
[    2.355749]  <TASK>
[    2.355799]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.355858]  register_netdevice (net/core/dev.c:11488)
[    2.355917] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.355985] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.356052] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[    2.356128]  devlink_reload (net/devlink/dev.c:475)
[    2.356187]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.356252]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.356321]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.356388]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.356447]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.356513]  ? devlink_reload (net/devlink/dev.c:486)
[    2.356574]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.356640]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.356699]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.356758]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.356819]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.356877]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.356937]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.356996]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.357055]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.357122]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.357187] RIP: 0033:0x7ff2df2ca08e
[    2.357244] 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
[    2.357381] RSP: 002b:00007ffe383cbed0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.357459] RAX: ffffffffffffffda RBX: 000000003622d980 RCX: 00007ff2df2ca08e
[    2.357541] RDX: 0000000000000038 RSI: 000000003622dba0 RDI: 0000000000000005
[    2.357621] RBP: 00007ffe383cbee0 R08: 00007ff2df57e980 R09: 000000000000000c
[    2.357700] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.357777] R13: 000000003622d980 R14: 0000000000000000 R15: 0000000000000003
| [    2.415325] ------------[ cut here ]------------
| [    2.415390] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: devlink/263
| [    2.415476] Modules linked in: netdevsim
| [    2.415635] Tainted: [W]=WARN
[    2.415692] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.415763] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.415828] 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
[    2.415959] RSP: 0018:ff8f0659404ef908 EFLAGS: 00010286
[    2.416023] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.416109] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43060200
[    2.416188] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd433ab830
[    2.416265] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.416343] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd43060200
[    2.416422] FS:  00007fe33d4bb840(0000) GS:ff436afdcbb5a000(0000) knlGS:0000000000000000
[    2.416501] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.416576] CR2: 00007fe33da70004 CR3: 0000000007c4e005 CR4: 0000000000771ef0
[    2.416656] PKRU: 55555554
[    2.416706] Call Trace:
[    2.416756]  <TASK>
[    2.416806]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.416873]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.416937] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.417005] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.417072] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.417147] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[    2.417212]  devlink_reload (net/devlink/dev.c:462)
[    2.417270]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.417336]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.417402]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.417469]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.417533]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.417601]  ? devlink_reload (net/devlink/dev.c:486)
[    2.417658]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.417723]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.417782]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.417841]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.417901]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.417959]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.418019]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.418079]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.418144]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.418203]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.418268] RIP: 0033:0x7fe33d6f508e
[    2.418326] 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
[    2.418456] RSP: 002b:00007ffd57d76c90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.418539] RAX: ffffffffffffffda RBX: 00000000188e3980 RCX: 00007fe33d6f508e
[    2.418618] RDX: 0000000000000038 RSI: 00000000188e3ba0 RDI: 0000000000000005
[    2.418697] RBP: 00007ffd57d76ca0 R08: 00007fe33d9a9980 R09: 000000000000000c
[    2.418776] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.418855] R13: 00000000188e3980 R14: 0000000000000000 R15: 0000000000000003
| [    2.445250] ------------[ cut here ]------------
| [    2.445330] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: devlink/263
| [    2.445426] Modules linked in: netdevsim
| [    2.445606] Tainted: [W]=WARN
[    2.445663] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.445736] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.445802] 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
[    2.445931] RSP: 0018:ff8f0659404ef888 EFLAGS: 00010286
[    2.445996] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.446073] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43060200
[    2.446160] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd464aa030
[    2.446238] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.446315] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd43060200
[    2.446396] FS:  00007fe33d4bb840(0000) GS:ff436afdcbb5a000(0000) knlGS:0000000000000000
[    2.446475] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.446550] CR2: 00007fe33da70004 CR3: 0000000007c4e005 CR4: 0000000000771ef0
[    2.446634] PKRU: 55555554
[    2.446686] Call Trace:
[    2.446738]  <TASK>
[    2.446788]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.446846]  register_netdevice (net/core/dev.c:11488)
[    2.446905] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.446973] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.447041] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[    2.447117]  devlink_reload (net/devlink/dev.c:475)
[    2.447176]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.447242]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.447316]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.447384]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.447443]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.447508]  ? devlink_reload (net/devlink/dev.c:486)
[    2.447572]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.447637]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.447695]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.447754]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.447812]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.447870]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.447930]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.447988]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.448046]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.448111]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.448175] RIP: 0033:0x7fe33d6f508e
[    2.448233] 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
[    2.448366] RSP: 002b:00007ffd57d76c90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.448444] RAX: ffffffffffffffda RBX: 00000000188e3980 RCX: 00007fe33d6f508e
[    2.448528] RDX: 0000000000000038 RSI: 00000000188e3ba0 RDI: 0000000000000005
[    2.448607] RBP: 00007ffd57d76ca0 R08: 00007fe33d9a9980 R09: 000000000000000c
[    2.448684] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.448763] R13: 00000000188e3980 R14: 0000000000000000 R15: 0000000000000003
| [    2.471664] ------------[ cut here ]------------
| [    2.471700] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink/274
| [    2.471753] Modules linked in: netdevsim
| [    2.471837] Tainted: [W]=WARN
[    2.471861] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.471898] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.471925] 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
[    2.472019] RSP: 0018:ff8f06594052f908 EFLAGS: 00010286
[    2.472049] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.472094] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43062700
[    2.472133] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd433ab030
[    2.472172] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.472213] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd43062700
[    2.472263] FS:  00007f8726595840(0000) GS:ff436afdcba5a000(0000) knlGS:0000000000000000
[    2.472303] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.472336] CR2: 00007f8726b4a004 CR3: 0000000006472005 CR4: 0000000000771ef0
[    2.472372] PKRU: 55555554
[    2.472386] Call Trace:
[    2.472400]  <TASK>
[    2.472413]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.472442]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.472469] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.472496] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.472526] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.472558] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[    2.472587]  devlink_reload (net/devlink/dev.c:462)
[    2.472607]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.472636]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.472665]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.472691]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.472711]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.472741]  ? devlink_reload (net/devlink/dev.c:486)
[    2.472761]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.472789]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.472816]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.472837]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.472858]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.472878]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.472898]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.472920]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.472940]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.472963]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.472993] RIP: 0033:0x7f87267cf08e
[    2.473014] 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
[    2.473109] RSP: 002b:00007ffc045985e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.473152] RAX: ffffffffffffffda RBX: 0000000024352980 RCX: 00007f87267cf08e
[    2.473194] RDX: 0000000000000038 RSI: 0000000024352ba0 RDI: 0000000000000005
[    2.473235] RBP: 00007ffc045985f0 R08: 00007f8726a83980 R09: 000000000000000c
[    2.473275] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.473318] R13: 0000000024352980 R14: 0000000000000000 R15: 0000000000000003
| [    2.493280] ------------[ cut here ]------------
| [    2.493311] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink/274
| [    2.493363] Modules linked in: netdevsim
| [    2.493435] Tainted: [W]=WARN
[    2.493456] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.493493] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.493520] 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
[    2.493617] RSP: 0018:ff8f06594052f888 EFLAGS: 00010286
[    2.493644] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.493684] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43062700
[    2.493725] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd419bb030
[    2.493767] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.493807] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd43062700
[    2.493852] FS:  00007f8726595840(0000) GS:ff436afdcba5a000(0000) knlGS:0000000000000000
[    2.493896] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.493931] CR2: 00007f8726b4a004 CR3: 0000000006472005 CR4: 0000000000771ef0
[    2.493971] PKRU: 55555554
[    2.493986] Call Trace:
[    2.494000]  <TASK>
[    2.494015]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.494038]  register_netdevice (net/core/dev.c:11488)
[    2.494058] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.494093] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.494121] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[    2.494151]  devlink_reload (net/devlink/dev.c:475)
[    2.494172]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.494199]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.494228]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.494261]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.494281]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.494308]  ? devlink_reload (net/devlink/dev.c:486)
[    2.494328]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.494356]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.494376]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.494396]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.494418]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.494440]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.494460]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.494483]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.494505]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.494529]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.494556] RIP: 0033:0x7f87267cf08e
[    2.494579] 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
[    2.494673] RSP: 002b:00007ffc045985e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.494714] RAX: ffffffffffffffda RBX: 0000000024352980 RCX: 00007f87267cf08e
[    2.494755] RDX: 0000000000000038 RSI: 0000000024352ba0 RDI: 0000000000000005
[    2.494797] RBP: 00007ffc045985f0 R08: 00007f8726a83980 R09: 000000000000000c
[    2.494842] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.494888] R13: 0000000024352980 R14: 0000000000000000 R15: 0000000000000003
| [    2.566129] ------------[ cut here ]------------
| [    2.566267] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: devlink/336
| [    2.566315] Modules linked in: netdevsim
| [    2.566399] Tainted: [W]=WARN
[    2.566423] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.566562] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.566794] 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
[    2.566894] RSP: 0018:ff8f0659405ef908 EFLAGS: 00010286
[    2.566925] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.566963] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061800
[    2.566998] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd452eb030
[    2.567037] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.567077] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd43061800
[    2.567136] FS:  00007fe33ea1c840(0000) GS:ff436afdcbbda000(0000) knlGS:0000000000000000
[    2.567183] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.567218] CR2: 00007fe33efd1004 CR3: 0000000005142002 CR4: 0000000000771ef0
[    2.567256] PKRU: 55555554
[    2.567268] Call Trace:
[    2.567279]  <TASK>
[    2.567294]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.567320]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.567343] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.567373] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.567399] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.567435] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[    2.567507]  devlink_reload (net/devlink/dev.c:462)
[    2.567534]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.567559]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.567588]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.567610]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.567624]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.567650]  ? devlink_reload (net/devlink/dev.c:486)
[    2.567664]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.567690]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.567711]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.567731]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.567747]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.567762]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.567777]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.567793]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.567808]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.567824]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.567849] RIP: 0033:0x7fe33ec5608e
[    2.567864] 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
[    2.567941] RSP: 002b:00007ffc3c11c590 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.567971] RAX: ffffffffffffffda RBX: 000000001409f980 RCX: 00007fe33ec5608e
[    2.568011] RDX: 0000000000000038 RSI: 000000001409fba0 RDI: 0000000000000005
[    2.568048] RBP: 00007ffc3c11c5a0 R08: 00007fe33ef0a980 R09: 000000000000000c
[    2.568079] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.568112] R13: 000000001409f980 R14: 0000000000000000 R15: 0000000000000003
| [    2.611237] ------------[ cut here ]------------
| [    2.611277] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: devlink/336
| [    2.611311] Modules linked in: netdevsim
| [    2.611356] Tainted: [W]=WARN
[    2.611369] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.611389] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.611412] 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
[    2.611467] RSP: 0018:ff8f0659405ef888 EFLAGS: 00010286
[    2.611490] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.611513] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061800
[    2.611547] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd42029030
[    2.611571] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.611595] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd43061800
[    2.611619] FS:  00007fe33ea1c840(0000) GS:ff436afdcbbda000(0000) knlGS:0000000000000000
[    2.611646] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.611666] CR2: 00007fe33efd1004 CR3: 0000000005142002 CR4: 0000000000771ef0
[    2.611698] PKRU: 55555554
[    2.611711] Call Trace:
[    2.611719]  <TASK>
[    2.611735]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.611748]  register_netdevice (net/core/dev.c:11488)
[    2.611765] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.611783] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.611798] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[    2.611812]  devlink_reload (net/devlink/dev.c:475)
[    2.611825]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.611841]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.611857]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.611874]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.611885]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.611901]  ? devlink_reload (net/devlink/dev.c:486)
[    2.611913]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.611928]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.611939]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.611952]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.611964]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.611981]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.612000]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.612014]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.612026]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.612038]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.612054] RIP: 0033:0x7fe33ec5608e
[    2.612067] 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
[    2.612130] RSP: 002b:00007ffc3c11c590 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.612158] RAX: ffffffffffffffda RBX: 000000001409f980 RCX: 00007fe33ec5608e
[    2.612178] RDX: 0000000000000038 RSI: 000000001409fba0 RDI: 0000000000000005
[    2.612201] RBP: 00007ffc3c11c5a0 R08: 00007fe33ef0a980 R09: 000000000000000c
[    2.612220] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.612239] R13: 000000001409f980 R14: 0000000000000000 R15: 0000000000000003
| [    2.638319] ------------[ cut here ]------------
| [    2.638361] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink/347
| [    2.638392] Modules linked in: netdevsim
| [    2.638449] Tainted: [W]=WARN
[    2.638462] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.638483] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.638499] 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
[    2.638550] RSP: 0018:ff8f06594060f908 EFLAGS: 00010286
[    2.638565] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.638588] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061d00
[    2.638611] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd464b2030
[    2.638633] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.638655] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd43061d00
[    2.638681] FS:  00007f30d4da5840(0000) GS:ff436afdcba5a000(0000) knlGS:0000000000000000
[    2.638705] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.638723] CR2: 00007f30d535a004 CR3: 0000000007e6f001 CR4: 0000000000771ef0
[    2.638746] PKRU: 55555554
[    2.638754] Call Trace:
[    2.638763]  <TASK>
[    2.638771]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.638788]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.638805] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.638821] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.638835] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.638852] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[    2.638867]  devlink_reload (net/devlink/dev.c:462)
[    2.638880]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.638895]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.638909]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.638925]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.638936]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.638953]  ? devlink_reload (net/devlink/dev.c:486)
[    2.638963]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.638977]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.638989]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.639001]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.639012]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.639023]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.639036]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.639047]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.639057]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.639068]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.639082] RIP: 0033:0x7f30d4fdf08e
[    2.639100] 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
[    2.639153] RSP: 002b:00007ffe83eec570 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.639176] RAX: ffffffffffffffda RBX: 0000000039b35980 RCX: 00007f30d4fdf08e
[    2.639200] RDX: 0000000000000038 RSI: 0000000039b35ba0 RDI: 0000000000000005
[    2.639223] RBP: 00007ffe83eec580 R08: 00007f30d5293980 R09: 000000000000000c
[    2.639243] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.639265] R13: 0000000039b35980 R14: 0000000000000000 R15: 0000000000000003
| [    2.673229] ------------[ cut here ]------------
| [    2.673268] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink/347
| [    2.673304] Modules linked in: netdevsim
| [    2.673364] Tainted: [W]=WARN
[    2.673378] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.673397] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.673412] 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
[    2.673469] RSP: 0018:ff8f06594060f888 EFLAGS: 00010286
[    2.673486] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.673515] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061d00
[    2.673545] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd419bb030
[    2.673567] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.673596] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd43061d00
[    2.673623] FS:  00007f30d4da5840(0000) GS:ff436afdcba5a000(0000) knlGS:0000000000000000
[    2.673652] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.673673] CR2: 00007f30d535a004 CR3: 0000000007e6f001 CR4: 0000000000771ef0
[    2.673693] PKRU: 55555554
[    2.673700] Call Trace:
[    2.673708]  <TASK>
[    2.673718]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.673732]  register_netdevice (net/core/dev.c:11488)
[    2.673747] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.673764] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.673782] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[    2.673796]  devlink_reload (net/devlink/dev.c:475)
[    2.673808]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.673826]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.673841]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.673856]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.673868]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.673884]  ? devlink_reload (net/devlink/dev.c:486)
[    2.673895]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.673912]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.673923]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.673939]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.673952]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.673967]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.673981]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.673993]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.674004]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.674018]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.674032] RIP: 0033:0x7f30d4fdf08e
[    2.674043] 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
[    2.674092] RSP: 002b:00007ffe83eec570 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.674115] RAX: ffffffffffffffda RBX: 0000000039b35980 RCX: 00007f30d4fdf08e
[    2.674137] RDX: 0000000000000038 RSI: 0000000039b35ba0 RDI: 0000000000000005
[    2.674158] RBP: 00007ffe83eec580 R08: 00007f30d5293980 R09: 000000000000000c
[    2.674179] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.674199] R13: 0000000039b35980 R14: 0000000000000000 R15: 0000000000000003
| [    2.715067] ------------[ cut here ]------------
| [    2.715114] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: devlink/379
| [    2.715151] Modules linked in: netdevsim
| [    2.715203] Tainted: [W]=WARN
[    2.715214] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.715231] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.715247] 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
[    2.715304] RSP: 0018:ff8f0659406b7908 EFLAGS: 00010286
[    2.715320] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.715339] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061500
[    2.715364] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd464b2830
[    2.715383] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.715404] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd43061500
[    2.715426] FS:  00007f295b43f840(0000) GS:ff436afdcbbda000(0000) knlGS:0000000000000000
[    2.715448] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.715466] CR2: 00007f295b9f4004 CR3: 0000000007a6b002 CR4: 0000000000771ef0
[    2.715489] PKRU: 55555554
[    2.715497] Call Trace:
[    2.715506]  <TASK>
[    2.715514]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.715532]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.715547] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.715563] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.715578] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.715596] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[    2.715612]  devlink_reload (net/devlink/dev.c:462)
[    2.715624]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.715640]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.715656]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.715673]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.715684]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.715700]  ? devlink_reload (net/devlink/dev.c:486)
[    2.715711]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.715727]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.715738]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.715748]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.715759]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.715771]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.715783]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.715796]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.715808]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.715820]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.715834] RIP: 0033:0x7f295b67908e
[    2.715847] 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
[    2.715891] RSP: 002b:00007fff9a1adb00 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.715917] RAX: ffffffffffffffda RBX: 000000002a34d980 RCX: 00007f295b67908e
[    2.715940] RDX: 0000000000000038 RSI: 000000002a34dba0 RDI: 0000000000000005
[    2.715960] RBP: 00007fff9a1adb10 R08: 00007f295b92d980 R09: 000000000000000c
[    2.715979] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.716001] R13: 000000002a34d980 R14: 0000000000000000 R15: 0000000000000003
| [    2.744221] ------------[ cut here ]------------
| [    2.744256] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: devlink/379
| [    2.744286] Modules linked in: netdevsim
| [    2.744336] Tainted: [W]=WARN
[    2.744348] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.744369] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.744385] 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
[    2.744436] RSP: 0018:ff8f0659406b7888 EFLAGS: 00010286
[    2.744453] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.744481] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061500
[    2.744504] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd42029030
[    2.744533] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.744556] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd43061500
[    2.744583] FS:  00007f295b43f840(0000) GS:ff436afdcbbda000(0000) knlGS:0000000000000000
[    2.744611] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.744633] CR2: 00007f295b9f4004 CR3: 0000000007a6b002 CR4: 0000000000771ef0
[    2.744660] PKRU: 55555554
[    2.744668] Call Trace:
[    2.744677]  <TASK>
[    2.744686]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.744696]  register_netdevice (net/core/dev.c:11488)
[    2.744708] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.744723] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.744740] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[    2.744758]  devlink_reload (net/devlink/dev.c:475)
[    2.744771]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.744789]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.744804]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.744820]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.744835]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.744850]  ? devlink_reload (net/devlink/dev.c:486)
[    2.744862]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.744881]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.744891]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.744908]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.744924]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.744939]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.744951]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.744963]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.744975]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.744989]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.745007] RIP: 0033:0x7f295b67908e
[    2.745021] 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
[    2.745071] RSP: 002b:00007fff9a1adb00 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.745099] RAX: ffffffffffffffda RBX: 000000002a34d980 RCX: 00007f295b67908e
[    2.745119] RDX: 0000000000000038 RSI: 000000002a34dba0 RDI: 0000000000000005
[    2.745140] RBP: 00007fff9a1adb10 R08: 00007f295b92d980 R09: 000000000000000c
[    2.745162] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.745183] R13: 000000002a34d980 R14: 0000000000000000 R15: 0000000000000003
| [    2.781158] ------------[ cut here ]------------
| [    2.781227] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: devlink/395
| [    2.781290] Modules linked in: netdevsim
| [    2.781399] Tainted: [W]=WARN
[    2.781441] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.781490] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.781544] 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
[    2.781627] RSP: 0018:ff8f0659406d7908 EFLAGS: 00010286
[    2.781675] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.781728] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061e00
[    2.781781] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd47ad9030
[    2.781834] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.781887] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd43061e00
[    2.781944] FS:  00007f74f65ff840(0000) GS:ff436afdcbb5a000(0000) knlGS:0000000000000000
[    2.781998] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.782047] CR2: 00007f74f6bb4004 CR3: 0000000007b2b001 CR4: 0000000000771ef0
[    2.782117] PKRU: 55555554
[    2.782156] Call Trace:
[    2.782196]  <TASK>
[    2.782237]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.782284]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.782332] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.782380] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.782430] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.782478] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[    2.782532]  devlink_reload (net/devlink/dev.c:462)
[    2.782578]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.782626]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.782674]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.782723]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.782768]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.782816]  ? devlink_reload (net/devlink/dev.c:486)
[    2.782859]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.782906]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.782950]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.782994]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.783037]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.783081]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.783133]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.783178]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.783221]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.783270]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.783316] RIP: 0033:0x7f74f683908e
[    2.783360] 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
[    2.783439] RSP: 002b:00007ffcd2e9dd50 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.783492] RAX: ffffffffffffffda RBX: 000000001129e980 RCX: 00007f74f683908e
[    2.783549] RDX: 0000000000000038 RSI: 000000001129eba0 RDI: 0000000000000005
[    2.783603] RBP: 00007ffcd2e9dd60 R08: 00007f74f6aed980 R09: 000000000000000c
[    2.783656] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.783709] R13: 000000001129e980 R14: 0000000000000000 R15: 0000000000000003
| [    2.804231] ------------[ cut here ]------------
| [    2.804301] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: devlink/395
| [    2.804363] Modules linked in: netdevsim
| [    2.804473] Tainted: [W]=WARN
[    2.804517] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.804573] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.804623] 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
[    2.804701] RSP: 0018:ff8f0659406d7888 EFLAGS: 00010286
[    2.804748] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.804801] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061e00
[    2.804853] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd464aa030
[    2.804907] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[    2.804959] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd43061e00
[    2.805015] FS:  00007f74f65ff840(0000) GS:ff436afdcbb5a000(0000) knlGS:0000000000000000
[    2.805069] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.805126] CR2: 00007f74f6bb4004 CR3: 0000000007b2b001 CR4: 0000000000771ef0
[    2.805181] PKRU: 55555554
[    2.805220] Call Trace:
[    2.805259]  <TASK>
[    2.805298]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.805343]  register_netdevice (net/core/dev.c:11488)
[    2.805387] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.805437] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.805486] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[    2.805540]  devlink_reload (net/devlink/dev.c:475)
[    2.805587]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    2.805634]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    2.805682]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    2.805731]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[    2.805776]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[    2.805823]  ? devlink_reload (net/devlink/dev.c:486)
[    2.805866]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[    2.805913]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[    2.805958]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.806002]  genl_rcv (net/netlink/genetlink.c:1218)
[    2.806046]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.806099]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.806144]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    2.806189]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    2.806233]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.806282]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.806329] RIP: 0033:0x7f74f683908e
[    2.806372] 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
[    2.806449] RSP: 002b:00007ffcd2e9dd50 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.806503] RAX: ffffffffffffffda RBX: 000000001129e980 RCX: 00007f74f683908e
[    2.806562] RDX: 0000000000000038 RSI: 000000001129eba0 RDI: 0000000000000005
[    2.806615] RBP: 00007ffcd2e9dd60 R08: 00007f74f6aed980 R09: 000000000000000c
[    2.806667] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.806720] R13: 000000001129e980 R14: 0000000000000000 R15: 0000000000000003
| [  258.402920] ------------[ cut here ]------------
| [  258.403006] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: devlink/907
| [  258.403112] Modules linked in: netdevsim
| [  258.403262] Tainted: [W]=WARN
[  258.403316] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.403383] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.403446] 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
[  258.403572] RSP: 0018:ff8f065940d9b908 EFLAGS: 00010286
[  258.403641] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.403718] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd4303b900
[  258.403797] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd47adf830
[  258.403872] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.403948] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd4303b900
[  258.404029] FS:  00007fdad4a9b840(0000) GS:ff436afdcbb5a000(0000) knlGS:0000000000000000
[  258.404112] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.404181] CR2: 00007fdad5050004 CR3: 000000000196f002 CR4: 0000000000771ef0
[  258.404257] PKRU: 55555554
[  258.404305] Call Trace:
[  258.404355]  <TASK>
[  258.404404]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  258.404468]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[  258.404531] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  258.404596] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  258.404665] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  258.404729] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  258.404793]  devlink_reload (net/devlink/dev.c:462)
[  258.404851]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.404916]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.404980]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.405046]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.405111]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.405174]  ? devlink_reload (net/devlink/dev.c:486)
[  258.405230]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.405293]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.405349]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.405406]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.405463]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.405519]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.405576]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.405640]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.405696]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.405753]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.405818] RIP: 0033:0x7fdad4cd508e
[  258.405874] 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
[  258.406005] RSP: 002b:00007ffdb473eaf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.406079] RAX: ffffffffffffffda RBX: 0000000018be1980 RCX: 00007fdad4cd508e
[  258.406158] RDX: 0000000000000038 RSI: 0000000018be1ba0 RDI: 0000000000000005
[  258.406232] RBP: 00007ffdb473eb00 R08: 00007fdad4f89980 R09: 000000000000000c
[  258.406305] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.406379] R13: 0000000018be1980 R14: 0000000000000000 R15: 0000000000000003
| [  258.429317] ------------[ cut here ]------------
| [  258.429415] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: devlink/907
| [  258.429503] Modules linked in: netdevsim
| [  258.429663] Tainted: [W]=WARN
[  258.429719] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.429794] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.429863] 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
[  258.429999] RSP: 0018:ff8f065940d9b888 EFLAGS: 00010286
[  258.430063] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.430151] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd4303b900
[  258.430229] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd464aa030
[  258.430308] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.430387] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd4303b900
[  258.430470] FS:  00007fdad4a9b840(0000) GS:ff436afdcbb5a000(0000) knlGS:0000000000000000
[  258.430550] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.430621] CR2: 00007fdad5050004 CR3: 000000000196f002 CR4: 0000000000771ef0
[  258.430709] PKRU: 55555554
[  258.430758] Call Trace:
[  258.430806]  <TASK>
[  258.430854]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[  258.430911]  register_netdevice (net/core/dev.c:11488)
[  258.430967] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[  258.431033] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  258.431109] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[  258.431173]  devlink_reload (net/devlink/dev.c:475)
[  258.431231]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.431293]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.431364]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.431429]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.431486]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.431549]  ? devlink_reload (net/devlink/dev.c:486)
[  258.431604]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.431672]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.431728]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.431784]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.431840]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.431897]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.431953]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.432014]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.432070]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.432138]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.432203] RIP: 0033:0x7fdad4cd508e
[  258.432258] 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
[  258.432386] RSP: 002b:00007ffdb473eaf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.432461] RAX: ffffffffffffffda RBX: 0000000018be1980 RCX: 00007fdad4cd508e
[  258.432536] RDX: 0000000000000038 RSI: 0000000018be1ba0 RDI: 0000000000000005
[  258.432611] RBP: 00007ffdb473eb00 R08: 00007fdad4f89980 R09: 000000000000000c
[  258.432694] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.432768] R13: 0000000018be1980 R14: 0000000000000000 R15: 0000000000000003
| [  258.455098] ------------[ cut here ]------------
| [  258.455141] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: devlink/921
| [  258.455193] Modules linked in: netdevsim
| [  258.455261] Tainted: [W]=WARN
[  258.455282] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.455318] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.455347] 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
[  258.455444] RSP: 0018:ff8f065940de3908 EFLAGS: 00010286
[  258.455471] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.455510] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061200
[  258.455548] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd47adc830
[  258.455588] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.455642] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd43061200
[  258.455687] FS:  00007f7e3aa3e840(0000) GS:ff436afdcbbda000(0000) knlGS:0000000000000000
[  258.455729] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.455755] CR2: 00007f7e3aff3004 CR3: 0000000007f73003 CR4: 0000000000771ef0
[  258.455799] PKRU: 55555554
[  258.455810] Call Trace:
[  258.455825]  <TASK>
[  258.455840]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  258.455870]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[  258.455899] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  258.455931] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  258.455958] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  258.455987] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  258.456014]  devlink_reload (net/devlink/dev.c:462)
[  258.456038]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.456064]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.456094]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.456119]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.456140]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.456168]  ? devlink_reload (net/devlink/dev.c:486)
[  258.456191]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.456218]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.456240]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.456262]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.456283]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.456303]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.456324]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.456347]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.456366]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.456386]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.456417] RIP: 0033:0x7f7e3ac7808e
[  258.456437] 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
[  258.456532] RSP: 002b:00007fff07ad8cf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.456576] RAX: ffffffffffffffda RBX: 0000000037ba2980 RCX: 00007f7e3ac7808e
[  258.456613] RDX: 0000000000000038 RSI: 0000000037ba2ba0 RDI: 0000000000000005
[  258.456661] RBP: 00007fff07ad8d00 R08: 00007f7e3af2c980 R09: 000000000000000c
[  258.456699] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.456736] R13: 0000000037ba2980 R14: 0000000000000000 R15: 0000000000000003
| [  258.479313] ------------[ cut here ]------------
| [  258.479366] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: devlink/921
| [  258.479423] Modules linked in: netdevsim
| [  258.479500] Tainted: [W]=WARN
[  258.479521] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.479555] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.479584] 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
[  258.479686] RSP: 0018:ff8f065940de3888 EFLAGS: 00010286
[  258.479714] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.479758] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd4303bb00
[  258.479801] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd42029030
[  258.479840] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.479882] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd4303bb00
[  258.479932] FS:  00007f7e3aa3e840(0000) GS:ff436afdcbbda000(0000) knlGS:0000000000000000
[  258.479983] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.480016] CR2: 00007f7e3aff3004 CR3: 0000000007f73003 CR4: 0000000000771ef0
[  258.480059] PKRU: 55555554
[  258.480073] Call Trace:
[  258.480094]  <TASK>
[  258.480109]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[  258.480135]  register_netdevice (net/core/dev.c:11488)
[  258.480160] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[  258.480192] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  258.480225] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[  258.480255]  devlink_reload (net/devlink/dev.c:475)
[  258.480280]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.480309]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.480340]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.480373]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.480391]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.480421]  ? devlink_reload (net/devlink/dev.c:486)
[  258.480442]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.480472]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.480494]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.480515]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.480538]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.480561]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.480582]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.480608]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.480631]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.480656]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.480690] RIP: 0033:0x7f7e3ac7808e
[  258.480714] 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
[  258.480809] RSP: 002b:00007fff07ad8cf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.480850] RAX: ffffffffffffffda RBX: 0000000037ba2980 RCX: 00007f7e3ac7808e
[  258.480889] RDX: 0000000000000038 RSI: 0000000037ba2ba0 RDI: 0000000000000005
[  258.480919] RBP: 00007fff07ad8d00 R08: 00007f7e3af2c980 R09: 000000000000000c
[  258.480958] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.481000] R13: 0000000037ba2980 R14: 0000000000000000 R15: 0000000000000003
| [  258.513762] ------------[ cut here ]------------
| [  258.513843] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: devlink/952
| [  258.513951] Modules linked in: netdevsim
| [  258.514107] Tainted: [W]=WARN
[  258.514162] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.514230] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.514292] 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
[  258.514423] RSP: 0018:ff8f065940e73908 EFLAGS: 00010286
[  258.514484] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.514558] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd4303b900
[  258.514638] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd452f0830
[  258.514712] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.514788] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd4303b900
[  258.514868] FS:  00007f7d3256c840(0000) GS:ff436afdcbb5a000(0000) knlGS:0000000000000000
[  258.514946] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.515015] CR2: 00007f7d32b21004 CR3: 000000000313e002 CR4: 0000000000771ef0
[  258.515097] PKRU: 55555554
[  258.515144] Call Trace:
[  258.515193]  <TASK>
[  258.515241]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  258.515305]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[  258.515367] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  258.515434] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  258.515499] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  258.515563] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  258.515633]  devlink_reload (net/devlink/dev.c:462)
[  258.515690]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.515752]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.515816]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.515881]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.515938]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.516000]  ? devlink_reload (net/devlink/dev.c:486)
[  258.516055]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.516122]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.516178]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.516234]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.516291]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.516347]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.516404]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.516462]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.516517]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.516576]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.516644] RIP: 0033:0x7f7d327a608e
[  258.516700] 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
[  258.516827] RSP: 002b:00007ffc86f7e040 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.516903] RAX: ffffffffffffffda RBX: 0000000003992980 RCX: 00007f7d327a608e
[  258.516978] RDX: 0000000000000038 RSI: 0000000003992ba0 RDI: 0000000000000005
[  258.517053] RBP: 00007ffc86f7e050 R08: 00007f7d32a5a980 R09: 000000000000000c
[  258.517134] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.517209] R13: 0000000003992980 R14: 0000000000000000 R15: 0000000000000003
| [  258.541278] ------------[ cut here ]------------
| [  258.541368] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: devlink/952
| [  258.541455] Modules linked in: netdevsim
| [  258.541601] Tainted: [W]=WARN
[  258.541662] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.541728] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.541789] 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
[  258.541921] RSP: 0018:ff8f065940e73888 EFLAGS: 00010286
[  258.541982] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.542057] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd4303b900
[  258.542139] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd464aa030
[  258.542213] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.542287] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd4303b900
[  258.542365] FS:  00007f7d3256c840(0000) GS:ff436afdcbb5a000(0000) knlGS:0000000000000000
[  258.542441] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.542508] CR2: 00007f7d32b21004 CR3: 000000000313e002 CR4: 0000000000771ef0
[  258.542584] PKRU: 55555554
[  258.542637] Call Trace:
[  258.542685]  <TASK>
[  258.542732]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[  258.542787]  register_netdevice (net/core/dev.c:11488)
[  258.542844] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[  258.542910] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  258.542973] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[  258.543037]  devlink_reload (net/devlink/dev.c:475)
[  258.543104]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.543166]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.543228]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.543298]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.543354]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.543416]  ? devlink_reload (net/devlink/dev.c:486)
[  258.543470]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.543533]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.543588]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.543650]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.543705]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.543760]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.543815]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.543872]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.543928]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.543984]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.544047] RIP: 0033:0x7f7d327a608e
[  258.544108] 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
[  258.544236] RSP: 002b:00007ffc86f7e040 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.544311] RAX: ffffffffffffffda RBX: 0000000003992980 RCX: 00007f7d327a608e
[  258.544385] RDX: 0000000000000038 RSI: 0000000003992ba0 RDI: 0000000000000005
[  258.544460] RBP: 00007ffc86f7e050 R08: 00007f7d32a5a980 R09: 000000000000000c
[  258.544534] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.544606] R13: 0000000003992980 R14: 0000000000000000 R15: 0000000000000003
| [  258.575692] ------------[ cut here ]------------
| [  258.575731] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink/970
| [  258.575786] Modules linked in: netdevsim
| [  258.575863] Tainted: [W]=WARN
[  258.575883] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.575919] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.575948] 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
[  258.576042] RSP: 0018:ff8f065940ebb908 EFLAGS: 00010286
[  258.576072] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.576118] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061d00
[  258.576161] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd47adc830
[  258.576201] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.576248] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd43061d00
[  258.576293] FS:  00007fdfc5237840(0000) GS:ff436afdcba5a000(0000) knlGS:0000000000000000
[  258.576338] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.576373] CR2: 00007fdfc57ec004 CR3: 0000000002010003 CR4: 0000000000771ef0
[  258.576414] PKRU: 55555554
[  258.576431] Call Trace:
[  258.576444]  <TASK>
[  258.576460]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  258.576491]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[  258.576520] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  258.576553] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  258.576582] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  258.576612] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  258.576644]  devlink_reload (net/devlink/dev.c:462)
[  258.576668]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.576695]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.576726]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.576758]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.576781]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.576809]  ? devlink_reload (net/devlink/dev.c:486)
[  258.576829]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.576852]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.576875]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.576896]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.576915]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.576937]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.576960]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.576983]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.577006]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.577025]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.577052] RIP: 0033:0x7fdfc547108e
[  258.577073] 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
[  258.577170] RSP: 002b:00007fff3aec5710 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.577211] RAX: ffffffffffffffda RBX: 00000000299b3980 RCX: 00007fdfc547108e
[  258.577250] RDX: 0000000000000038 RSI: 00000000299b3ba0 RDI: 0000000000000005
[  258.577288] RBP: 00007fff3aec5720 R08: 00007fdfc5725980 R09: 000000000000000c
[  258.577327] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.577370] R13: 00000000299b3980 R14: 0000000000000000 R15: 0000000000000003
| [  258.596284] ------------[ cut here ]------------
| [  258.596325] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink/970
| [  258.596385] Modules linked in: netdevsim
| [  258.596467] Tainted: [W]=WARN
[  258.596488] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.596515] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.596546] 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
[  258.596651] RSP: 0018:ff8f065940ebb888 EFLAGS: 00010286
[  258.596680] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.596721] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43061d00
[  258.596760] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd419bb030
[  258.596796] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.596837] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd43061d00
[  258.596879] FS:  00007fdfc5237840(0000) GS:ff436afdcba5a000(0000) knlGS:0000000000000000
[  258.596923] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.596950] CR2: 00007fdfc57ec004 CR3: 0000000002010003 CR4: 0000000000771ef0
[  258.596995] PKRU: 55555554
[  258.597008] Call Trace:
[  258.597024]  <TASK>
[  258.597036]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[  258.597057]  register_netdevice (net/core/dev.c:11488)
[  258.597078] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[  258.597115] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  258.597145] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[  258.597178]  devlink_reload (net/devlink/dev.c:475)
[  258.597205]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.597234]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.597265]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.597294]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.597316]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.597346]  ? devlink_reload (net/devlink/dev.c:486)
[  258.597367]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.597397]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.597419]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.597441]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.597465]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.597487]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.597511]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.597533]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.597549]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.597572]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.597600] RIP: 0033:0x7fdfc547108e
[  258.597621] 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
[  258.597713] RSP: 002b:00007fff3aec5710 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.597756] RAX: ffffffffffffffda RBX: 00000000299b3980 RCX: 00007fdfc547108e
[  258.597796] RDX: 0000000000000038 RSI: 00000000299b3ba0 RDI: 0000000000000005
[  258.597831] RBP: 00007fff3aec5720 R08: 00007fdfc5725980 R09: 000000000000000c
[  258.597870] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.597906] R13: 00000000299b3980 R14: 0000000000000000 R15: 0000000000000003
| [  258.699563] ------------[ cut here ]------------
| [  258.699606] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink/1062
| [  258.699672] Modules linked in: netdevsim
| [  258.699755] Tainted: [W]=WARN
[  258.699776] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.699810] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.699834] 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
[  258.699934] RSP: 0018:ff8f065941013908 EFLAGS: 00010286
[  258.699963] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.700005] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd41892700
[  258.700046] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd464a4830
[  258.700086] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.700136] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd41892700
[  258.700182] FS:  00007f9d6cb0f840(0000) GS:ff436afdcba5a000(0000) knlGS:0000000000000000
[  258.700222] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.700262] CR2: 00007f9d6d0c4004 CR3: 0000000007a42005 CR4: 0000000000771ef0
[  258.700313] PKRU: 55555554
[  258.700326] Call Trace:
[  258.700342]  <TASK>
[  258.700360]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  258.700392]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[  258.700424] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  258.700457] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  258.700484] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  258.700514] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  258.700545]  devlink_reload (net/devlink/dev.c:462)
[  258.700568]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.700597]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.700635]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.700673]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.700694]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.700722]  ? devlink_reload (net/devlink/dev.c:486)
[  258.700745]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.700774]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.700796]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.700818]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.700839]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.700859]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.700882]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.700904]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.700925]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.700950]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.700978] RIP: 0033:0x7f9d6cd4908e
[  258.700998] 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
[  258.701103] RSP: 002b:00007ffec5fda970 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.701146] RAX: ffffffffffffffda RBX: 000000002f2b9980 RCX: 00007f9d6cd4908e
[  258.701188] RDX: 0000000000000038 RSI: 000000002f2b9ba0 RDI: 0000000000000005
[  258.701234] RBP: 00007ffec5fda980 R08: 00007f9d6cffd980 R09: 000000000000000c
[  258.701277] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.701321] R13: 000000002f2b9980 R14: 0000000000000000 R15: 0000000000000003
| [  258.737296] ------------[ cut here ]------------
| [  258.737354] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink/1062
| [  258.737407] Modules linked in: netdevsim
| [  258.737491] Tainted: [W]=WARN
[  258.737515] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.737553] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.737584] 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
[  258.737684] RSP: 0018:ff8f065941013888 EFLAGS: 00010286
[  258.737710] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.737743] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd41892700
[  258.737783] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd419bb030
[  258.737829] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.737870] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd41892700
[  258.737914] FS:  00007f9d6cb0f840(0000) GS:ff436afdcba5a000(0000) knlGS:0000000000000000
[  258.737957] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.737992] CR2: 00007f9d6d0c4004 CR3: 0000000007a42005 CR4: 0000000000771ef0
[  258.738035] PKRU: 55555554
[  258.738049] Call Trace:
[  258.738065]  <TASK>
[  258.738081]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[  258.738108]  register_netdevice (net/core/dev.c:11488)
[  258.738132] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[  258.738161] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  258.738191] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[  258.738219]  devlink_reload (net/devlink/dev.c:475)
[  258.738244]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.738272]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.738296]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.738328]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.738350]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.738376]  ? devlink_reload (net/devlink/dev.c:486)
[  258.738398]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.738426]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.738445]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.738466]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.738489]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.738511]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.738530]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.738553]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.738575]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.738594]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.738623] RIP: 0033:0x7f9d6cd4908e
[  258.738649] 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
[  258.738744] RSP: 002b:00007ffec5fda970 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.738785] RAX: ffffffffffffffda RBX: 000000002f2b9980 RCX: 00007f9d6cd4908e
[  258.738825] RDX: 0000000000000038 RSI: 000000002f2b9ba0 RDI: 0000000000000005
[  258.738865] RBP: 00007ffec5fda980 R08: 00007f9d6cffd980 R09: 000000000000000c
[  258.738905] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.738954] R13: 000000002f2b9980 R14: 0000000000000000 R15: 0000000000000003
| [  258.766971] ------------[ cut here ]------------
| [  258.767015] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink/1075
| [  258.767074] Modules linked in: netdevsim
| [  258.767165] Tainted: [W]=WARN
[  258.767188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.767223] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.767247] 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
[  258.767349] RSP: 0018:ff8f065940fa3908 EFLAGS: 00010286
[  258.767378] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.767419] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd41892700
[  258.767465] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd464a5030
[  258.767503] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.767546] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd41892700
[  258.767591] FS:  00007f8089d68840(0000) GS:ff436afdcba5a000(0000) knlGS:0000000000000000
[  258.767635] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.767663] CR2: 00007f808a31d004 CR3: 000000000534b001 CR4: 0000000000771ef0
[  258.767707] PKRU: 55555554
[  258.767723] Call Trace:
[  258.767743]  <TASK>
[  258.767757]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  258.767789]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[  258.767816] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  258.767848] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  258.767879] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  258.767905] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  258.767934]  devlink_reload (net/devlink/dev.c:462)
[  258.767959]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.767990]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.768019]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.768053]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.768075]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.768107]  ? devlink_reload (net/devlink/dev.c:486)
[  258.768125]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.768153]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.768176]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.768199]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.768223]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.768247]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.768270]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.768293]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.768316]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.768335]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.768364] RIP: 0033:0x7f8089fa208e
[  258.768384] 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
[  258.768492] RSP: 002b:00007fff692076b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.768542] RAX: ffffffffffffffda RBX: 000000001f2d5980 RCX: 00007f8089fa208e
[  258.768588] RDX: 0000000000000038 RSI: 000000001f2d5ba0 RDI: 0000000000000005
[  258.768633] RBP: 00007fff692076c0 R08: 00007f808a256980 R09: 000000000000000c
[  258.768677] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.768716] R13: 000000001f2d5980 R14: 0000000000000000 R15: 0000000000000003
| [  258.791305] ------------[ cut here ]------------
| [  258.791343] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: devlink/1075
| [  258.791400] Modules linked in: netdevsim
| [  258.791478] Tainted: [W]=WARN
[  258.791502] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.791540] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.791572] 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
[  258.791679] RSP: 0018:ff8f065940fa3888 EFLAGS: 00010286
[  258.791709] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.791746] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd41892700
[  258.791783] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd419bb030
[  258.791823] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.791865] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd41892700
[  258.791907] FS:  00007f8089d68840(0000) GS:ff436afdcba5a000(0000) knlGS:0000000000000000
[  258.791954] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.791983] CR2: 00007f808a31d004 CR3: 000000000534b001 CR4: 0000000000771ef0
[  258.792024] PKRU: 55555554
[  258.792039] Call Trace:
[  258.792051]  <TASK>
[  258.792066]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[  258.792093]  register_netdevice (net/core/dev.c:11488)
[  258.792120] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[  258.792148] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  258.792177] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[  258.792207]  devlink_reload (net/devlink/dev.c:475)
[  258.792227]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.792255]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.792284]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.792314]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.792334]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.792362]  ? devlink_reload (net/devlink/dev.c:486)
[  258.792379]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.792402]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.792424]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.792445]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.792467]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.792488]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.792506]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.792526]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.792546]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.792568]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.792595] RIP: 0033:0x7f8089fa208e
[  258.792614] 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
[  258.792713] RSP: 002b:00007fff692076b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.792751] RAX: ffffffffffffffda RBX: 000000001f2d5980 RCX: 00007f8089fa208e
[  258.792793] RDX: 0000000000000038 RSI: 000000001f2d5ba0 RDI: 0000000000000005
[  258.792829] RBP: 00007fff692076c0 R08: 00007f808a256980 R09: 000000000000000c
[  258.792871] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.792910] R13: 000000001f2d5980 R14: 0000000000000000 R15: 0000000000000003
| [  258.878111] ------------[ cut here ]------------
| [  258.878149] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: devlink/1140
| [  258.878205] Modules linked in: netdevsim
| [  258.878293] Tainted: [W]=WARN
[  258.878317] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.878351] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.878378] 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
[  258.878459] RSP: 0018:ff8f06594111b908 EFLAGS: 00010286
[  258.878487] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.878526] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43068b00
[  258.878567] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd42f25830
[  258.878607] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.878662] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd43068b00
[  258.878708] FS:  00007f086b21a840(0000) GS:ff436afdcbbda000(0000) knlGS:0000000000000000
[  258.878749] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.878784] CR2: 00007f086b7cf004 CR3: 00000000064f6005 CR4: 0000000000771ef0
[  258.878824] PKRU: 55555554
[  258.878837] Call Trace:
[  258.878854]  <TASK>
[  258.878868]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  258.878900]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[  258.878931] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  258.878957] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  258.878987] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  258.879018] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  258.879045]  devlink_reload (net/devlink/dev.c:462)
[  258.879069]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.879098]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.879130]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.879162]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.879186]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.879217]  ? devlink_reload (net/devlink/dev.c:486)
[  258.879236]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.879264]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.879288]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.879309]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.879333]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.879357]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.879376]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.879398]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.879420]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.879444]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.879475] RIP: 0033:0x7f086b45408e
[  258.879496] 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
[  258.879599] RSP: 002b:00007ffe5bc16930 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.879647] RAX: ffffffffffffffda RBX: 00000000273bd980 RCX: 00007f086b45408e
[  258.879695] RDX: 0000000000000038 RSI: 00000000273bdba0 RDI: 0000000000000005
[  258.879736] RBP: 00007ffe5bc16940 R08: 00007f086b708980 R09: 000000000000000c
[  258.879773] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.879815] R13: 00000000273bd980 R14: 0000000000000000 R15: 0000000000000003
| [  258.914337] ------------[ cut here ]------------
| [  258.914380] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: devlink/1140
| [  258.914442] Modules linked in: netdevsim
| [  258.914521] Tainted: [W]=WARN
[  258.914543] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.914579] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.914607] 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
[  258.914708] RSP: 0018:ff8f06594111b888 EFLAGS: 00010286
[  258.914735] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.914771] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43068b00
[  258.914812] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd42029030
[  258.914851] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.914893] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd43068b00
[  258.914939] FS:  00007f086b21a840(0000) GS:ff436afdcbbda000(0000) knlGS:0000000000000000
[  258.914979] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.915014] CR2: 00007f086b7cf004 CR3: 00000000064f6005 CR4: 0000000000771ef0
[  258.915052] PKRU: 55555554
[  258.915066] Call Trace:
[  258.915080]  <TASK>
[  258.915101]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[  258.915123]  register_netdevice (net/core/dev.c:11488)
[  258.915144] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[  258.915176] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  258.915205] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[  258.915233]  devlink_reload (net/devlink/dev.c:475)
[  258.915255]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.915284]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.915313]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.915344]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.915367]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.915398]  ? devlink_reload (net/devlink/dev.c:486)
[  258.915419]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.915448]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.915469]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.915491]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.915511]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.915533]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.915556]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.915580]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.915602]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.915624]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.915661] RIP: 0033:0x7f086b45408e
[  258.915683] 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
[  258.915774] RSP: 002b:00007ffe5bc16930 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.915818] RAX: ffffffffffffffda RBX: 00000000273bd980 RCX: 00007f086b45408e
[  258.915861] RDX: 0000000000000038 RSI: 00000000273bdba0 RDI: 0000000000000005
[  258.915903] RBP: 00007ffe5bc16940 R08: 00007f086b708980 R09: 000000000000000c
[  258.915945] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.915986] R13: 00000000273bd980 R14: 0000000000000000 R15: 0000000000000003
| [  258.956097] ------------[ cut here ]------------
| [  258.956183] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: devlink/1168
| [  258.956274] Modules linked in: netdevsim
| [  258.956421] Tainted: [W]=WARN
[  258.956475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  258.956543] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  258.956606] 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
[  258.956740] RSP: 0018:ff8f06594119b908 EFLAGS: 00010286
[  258.956803] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  258.956880] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd41d7a600
[  258.956956] RBP: 0000000000000000 R08: ff436afd41d4b990 R09: ff436afd452f1830
[  258.957032] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  258.957115] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd41d7a600
[  258.957196] FS:  00007fec59d65840(0000) GS:ff436afdcbb5a000(0000) knlGS:0000000000000000
[  258.957276] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  258.957344] CR2: 00007fec5a31a004 CR3: 0000000006439002 CR4: 0000000000771ef0
[  258.957421] PKRU: 55555554
[  258.957469] Call Trace:
[  258.957519]  <TASK>
[  258.957568]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  258.957639]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[  258.957704] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  258.957771] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  258.957838] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  258.957903] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  258.957968]  devlink_reload (net/devlink/dev.c:462)
[  258.958025]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  258.958095]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  258.958160]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  258.958225]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  258.958281]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  258.958344]  ? devlink_reload (net/devlink/dev.c:486)
[  258.958400]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  258.958463]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  258.958519]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  258.958577]  genl_rcv (net/netlink/genetlink.c:1218)
[  258.958640]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  258.958697]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  258.958754]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  258.958812]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  258.958867]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  258.958927]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  258.958991] RIP: 0033:0x7fec59f9f08e
[  258.959047] 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
[  258.959181] RSP: 002b:00007fffca793da0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  258.959258] RAX: ffffffffffffffda RBX: 000000001dab9980 RCX: 00007fec59f9f08e
[  258.959333] RDX: 0000000000000038 RSI: 000000001dab9ba0 RDI: 0000000000000005
[  258.959409] RBP: 00007fffca793db0 R08: 00007fec5a253980 R09: 000000000000000c
[  258.959486] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  258.959563] R13: 000000001dab9980 R14: 0000000000000000 R15: 0000000000000003
| [  259.023171] ------------[ cut here ]------------
| [  259.023246] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: devlink/1170
| [  259.023340] Modules linked in: netdevsim
| [  259.023491] Tainted: [W]=WARN
[  259.023545] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  259.023615] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  259.023684] 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
[  259.023812] RSP: 0018:ff8f0659411a3888 EFLAGS: 00010286
[  259.023875] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  259.023952] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd4303e800
[  259.024028] RBP: 0000000000000000 R08: ff436afd4194ff50 R09: ff436afd464aa030
[  259.024112] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  259.024188] R13: 0000000000000010 R14: ff436afd452e6000 R15: ff436afd4303e800
[  259.024269] FS:  00007fb20d9fa840(0000) GS:ff436afdcbb5a000(0000) knlGS:0000000000000000
[  259.024348] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  259.024418] CR2: 00007fb20dfaf004 CR3: 0000000006439004 CR4: 0000000000771ef0
[  259.024498] PKRU: 55555554
[  259.024546] Call Trace:
[  259.024595]  <TASK>
[  259.024650]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[  259.024707]  register_netdevice (net/core/dev.c:11488)
[  259.024765] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[  259.024833] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  259.024898] nsim_dev_reload_up (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622 drivers/net/netdevsim/dev.c:1058) netdevsim
[  259.024963]  devlink_reload (net/devlink/dev.c:475)
[  259.025021]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  259.025084]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  259.025162]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  259.025227]  genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[  259.025284]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:273)
[  259.025346]  ? devlink_reload (net/devlink/dev.c:486)
[  259.025402]  ? devlink_nl_post_doit (net/devlink/netlink.c:309)
[  259.025465]  ? genl_get_cmd (net/netlink/genetlink.c:314)
[  259.025522]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  259.025579]  genl_rcv (net/netlink/genetlink.c:1218)
[  259.025640]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  259.025698]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  259.025755]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  259.025813]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  259.025869]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  259.025930]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  259.025994] RIP: 0033:0x7fb20dc3408e
[  259.026050] 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
[  259.026194] RSP: 002b:00007ffece1a84e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  259.026274] RAX: ffffffffffffffda RBX: 0000000000dab980 RCX: 00007fb20dc3408e
[  259.026352] RDX: 0000000000000038 RSI: 0000000000dabba0 RDI: 0000000000000005
[  259.026434] RBP: 00007ffece1a84f0 R08: 00007fb20dee8980 R09: 000000000000000c
[  259.026511] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  259.026587] R13: 0000000000dab980 R14: 0000000000000000 R15: 0000000000000003
| [  259.039969] ------------[ cut here ]------------
| [  259.040007] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: nexthop.sh/158
| [  259.040074] Modules linked in: netdevsim
| [  259.040165] Tainted: [W]=WARN
[  259.040189] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  259.040228] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  259.040257] 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
[  259.040364] RSP: 0018:ff8f0659403f7b88 EFLAGS: 00010286
[  259.040391] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  259.040436] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd41892500
[  259.040481] RBP: 0000000000000000 R08: ff436afd4194ff50 R09: ff436afd464b6830
[  259.040528] R10: ff436afd452e6118 R11: fefefefefefefeff R12: 0000000000000000
[  259.040573] R13: 0000000000000011 R14: ff436afd452e6000 R15: ff436afd41892500
[  259.040619] FS:  00007f932b271b80(0000) GS:ff436afdcba5a000(0000) knlGS:0000000000000000
[  259.040670] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  259.040709] CR2: 0000557edfafae80 CR3: 000000000339a003 CR4: 0000000000771ef0
[  259.040754] PKRU: 55555554
[  259.040769] Call Trace:
[  259.040785]  <TASK>
[  259.040801]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  259.040835]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[  259.040864] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  259.040903] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  259.040937] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  259.040970] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[  259.041001]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[  259.041029]  bus_remove_device (drivers/base/bus.c:657)
[  259.041053]  ? device_remove_attrs (drivers/base/core.c:2844 drivers/base/core.c:2977)
[  259.041086]  device_del (drivers/base/core.c:3895)
[  259.041141]  device_unregister (drivers/base/core.c:3936)
[  259.041168] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[  259.041200]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[  259.041234]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[  259.041259]  ksys_write (fs/read_write.c:740)
[  259.041285]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  259.041313]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  259.041347] RIP: 0033:0x7f932b2e308e
[  259.041371] 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
[  259.041478] RSP: 002b:00007ffde6a358c0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  259.041521] RAX: ffffffffffffffda RBX: 00007f932b465580 RCX: 00007f932b2e308e
[  259.041561] RDX: 0000000000000005 RSI: 0000557edfafae80 RDI: 0000000000000001
[  259.041605] RBP: 00007ffde6a358d0 R08: 0000000000000000 R09: 0000000000000000
[  259.041661] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[  259.041708] R13: 0000000000000005 R14: 0000557edfafae80 R15: 0000000000000000
| [  259.071415] ------------[ cut here ]------------
| [  259.071450] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/65
| [  259.071514] Modules linked in: netdevsim
| [  259.071601] Tainted: [W]=WARN
[  259.071622] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  259.071655] Workqueue: netns cleanup_net
[  259.071679] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  259.071709] 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
[  259.071806] RSP: 0018:ff8f06594023fc08 EFLAGS: 00010286
[  259.071836] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[  259.071879] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43068b00
[  259.071921] RBP: 0000000000000000 R08: ff436afd43386510 R09: ff436afd42029030
[  259.071963] R10: ff436afd4649d118 R11: fefefefefefefeff R12: 0000000000000000
[  259.072005] R13: 0000000000000010 R14: ff436afd4649d000 R15: ff436afd43068b00
[  259.072052] FS:  0000000000000000(0000) GS:ff436afdcbbda000(0000) knlGS:0000000000000000
[  259.072102] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  259.072141] CR2: 0000557ed9cdec50 CR3: 0000000003182002 CR4: 0000000000771ef0
[  259.072188] PKRU: 55555554
[  259.072203] Call Trace:
[  259.072220]  <TASK>
[  259.072236]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[  259.072259]  netif_close_many (net/core/dev.c:1804)
[  259.072283]  unregister_netdevice_many_notify (net/core/dev.c:12330 net/core/dev.c:12400)
[  259.072313]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  259.072343]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  259.072363]  cleanup_net (net/core/net_namespace.c:702)
[  259.072386]  process_one_work (kernel/workqueue.c:3314)
[  259.072408]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  259.072431]  ? rescuer_thread (kernel/workqueue.c:3672)
[  259.072455]  kthread (kernel/kthread.c:436)
[  259.072476]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[  259.072498]  ret_from_fork (arch/x86/kernel/process.c:158)
[  259.072527]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[  259.072550]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  259.072732] ------------[ cut here ]------------
| [  259.072761] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/65
| [  259.072820] Modules linked in: netdevsim
| [  259.072907] Tainted: [W]=WARN
[  259.072928] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  259.072965] Workqueue: netns cleanup_net
[  259.072985] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  259.073013] 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
[  259.073111] RSP: 0018:ff8f06594023fc78 EFLAGS: 00010286
[  259.073140] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  259.073183] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43068b00
[  259.073227] RBP: 0000000000000000 R08: ff436afd43386510 R09: ff436afd452ee830
[  259.073267] R10: ff436afd4649d118 R11: fefefefefefefeff R12: 0000000000000000
[  259.073310] R13: 0000000000000011 R14: ff436afd4649d000 R15: ff436afd43068b00
[  259.073356] FS:  0000000000000000(0000) GS:ff436afdcbbda000(0000) knlGS:0000000000000000
[  259.073398] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  259.073436] CR2: 0000557edfaa98f8 CR3: 0000000003182002 CR4: 0000000000771ef0
[  259.073479] PKRU: 55555554
[  259.073494] Call Trace:
[  259.073507]  <TASK>
[  259.073521]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  259.073550]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  259.073579]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  259.073600]  cleanup_net (net/core/net_namespace.c:702)
[  259.073624]  process_one_work (kernel/workqueue.c:3314)
[  259.073653]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  259.073674]  ? rescuer_thread (kernel/workqueue.c:3672)
[  259.073696]  kthread (kernel/kthread.c:436)
[  259.073719]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[  259.073740]  ret_from_fork (arch/x86/kernel/process.c:158)
[  259.073761]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[  259.073782]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  259.073911] ------------[ cut here ]------------
| [  259.073939] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/65
| [  259.074000] Modules linked in: netdevsim
| [  259.074078] Tainted: [W]=WARN
[  259.074107] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  259.074142] Workqueue: netns cleanup_net
[  259.074162] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  259.074192] 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
[  259.074287] RSP: 0018:ff8f06594023fc78 EFLAGS: 00010286
[  259.074314] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  259.074357] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff436afd43068b00
[  259.074398] RBP: 0000000000000000 R08: ff436afd41d4b790 R09: ff436afd464a082c
[  259.074442] R10: ff436afd46498118 R11: fefefefefefefeff R12: 0000000000000000
[  259.074479] R13: 0000000000000011 R14: ff436afd46498000 R15: ff436afd43068b00
[  259.074525] FS:  0000000000000000(0000) GS:ff436afdcbbda000(0000) knlGS:0000000000000000
[  259.074569] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  259.074596] CR2: 0000557edfaa98f8 CR3: 0000000003182002 CR4: 0000000000771ef0
[  259.074642] PKRU: 55555554
[  259.074657] Call Trace:
[  259.074669]  <TASK>
[  259.074682]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  259.074711]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  259.074739]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  259.074761]  cleanup_net (net/core/net_namespace.c:702)
[  259.074783]  process_one_work (kernel/workqueue.c:3314)
[  259.074804]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  259.074825]  ? rescuer_thread (kernel/workqueue.c:3672)
[  259.074845]  kthread (kernel/kthread.c:436)
[  259.074868]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[  259.074891]  ret_from_fork (arch/x86/kernel/process.c:158)
[  259.074908]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))


Finger prints:
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
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:rtnl_newlink
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:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:default_device_exit_batch