======================================
| xx__-> [    2.241144] ------------[ cut here ]------------
| [    2.241183] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: ip/165
| [    2.241236] Modules linked in: netdevsim
| [    2.241341] Tainted: [W]=WARN
[    2.241356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.241390] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.241429] 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
[    2.241490] RSP: 0018:ff6796b0802e3cc8 EFLAGS: 00010286
[    2.241521] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.241549] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff366b48c1d69000
[    2.241588] RBP: 0000000000000000 R08: ff366b48c3562150 R09: ff366b48c4e7d02c
[    2.241619] R10: ff366b48c4e78118 R11: fefefefefefefeff R12: 0000000000000000
[    2.241657] R13: 0000000000000010 R14: ff366b48c4e78000 R15: ff366b48c1d69000
[    2.241689] FS:  00007f2837a33840(0000) GS:ff366b49491da000(0000) knlGS:0000000000000000
[    2.241736] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.241770] CR2: 0000000000479648 CR3: 000000000372d004 CR4: 0000000000771ef0
[    2.241799] PKRU: 55555554
[    2.241811] Call Trace:
[    2.241832]  <TASK>
[    2.241849]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.241873]  register_netdevice (net/core/dev.c:11488)
[    2.241906]  register_netdev (net/core/dev.c:11552)
[    2.241939]  loopback_net_init (drivers/net/loopback.c:218)
[    2.241956]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.241984]  ops_init (net/core/net_namespace.c:137)
[    2.242003]  setup_net (net/core/net_namespace.c:446)
[    2.242027]  copy_net_ns (net/core/net_namespace.c:579)
[    2.242052]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.242084]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.242112]  ksys_unshare (kernel/fork.c:3243)
[    2.242132]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.242147]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.242170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.242198] RIP: 0033:0x7f2837cf5bcb
[    2.242214] 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
[    2.242295] RSP: 002b:00007fffe3b2e888 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    2.242346] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f2837cf5bcb
[    2.242373] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    2.242411] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    2.242434] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffe3b30ab0
[    2.242474] R13: 0000000000000001 R14: 00007f2837a336f8 R15: 00007fffe3b31847
| [    2.245376] ------------[ cut here ]------------
| [    2.245405] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: ip/166
| [    2.245452] Modules linked in: netdevsim
| [    2.245534] Tainted: [W]=WARN
[    2.245557] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.245580] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.245607] 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
[    2.245676] RSP: 0018:ff6796b0802e3720 EFLAGS: 00010286
[    2.245709] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.245738] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff366b48c18d3100
[    2.245777] RBP: 0000000000000000 R08: ff366b48c3562150 R09: ff366b48c113802c
[    2.245806] R10: ff366b48c4e78118 R11: fefefefefefefeff R12: 0000000000000000
[    2.245845] R13: 0000000000000010 R14: ff366b48c4e78000 R15: ff366b48c18d3100
[    2.245874] FS:  00007f5c4b6a3840(0000) GS:ff366b494905a000(0000) knlGS:0000000000000000
[    2.245921] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.245950] CR2: 000000002953c988 CR3: 0000000004e4f003 CR4: 0000000000771ef0
[    2.245992] PKRU: 55555554
[    2.246004] Call Trace:
[    2.246015]  <TASK>
[    2.246026]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.246065]  __dev_notify_flags (net/core/dev.c:9787)
[    2.246085]  ? rtnl_getlink (./include/linux/skbuff.h:1323 ./include/linux/skbuff.h:1332 net/core/rtnetlink.c:4288)
[    2.246111]  netif_change_flags (net/core/dev.c:9820)
[    2.246130]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    2.246153]  ? __nla_validate_parse (lib/nlattr.c:620)
[    2.246184]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    2.246212]  ? kmalloc_reserve (net/core/skbuff.c:613 (discriminator 7))
[    2.246231]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    2.246251]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    2.246279]  ? netlink_unicast (net/netlink/af_netlink.c:1270 net/netlink/af_netlink.c:1360)
[    2.246301]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.246334]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.246356]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.246383]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.246411]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    2.246430]  ___sys_sendmsg (net/socket.c:2752)
[    2.246456]  __sys_sendmsg (net/socket.c:2784)
[    2.246481]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.246509]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.246534] RIP: 0033:0x7f5c4b8dd08e
[    2.246559] 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
[    2.246635] RSP: 002b:00007ffce82207b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    2.246683] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5c4b8dd08e
[    2.246714] RDX: 0000000000000000 RSI: 00007ffce8220860 RDI: 0000000000000005
[    2.246753] RBP: 00007ffce82207c0 R08: 0000000000000000 R09: 0000000000000000
[    2.246799] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d0f4
[    2.246829] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffce8220f30
| [    2.254870] ------------[ cut here ]------------
| [    2.254908] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bash/148
| [    2.254979] Modules linked in: netdevsim
| [    2.255069] Tainted: [W]=WARN
[    2.255085] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.255124] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.255146] 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
[    2.255234] RSP: 0018:ff6796b0803bf9d0 EFLAGS: 00010286
[    2.255261] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.255313] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff366b48c1d68800
[    2.255342] RBP: 0000000000000000 R08: ff366b48c18f8410 R09: ff366b48c4eb3030
[    2.255374] R10: ff366b48c4eae118 R11: fefefefefefefeff R12: 0000000000000000
[    2.255397] R13: 0000000000000010 R14: ff366b48c4eae000 R15: ff366b48c1d68800
[    2.255442] FS:  00007f64c519db80(0000) GS:ff366b49491da000(0000) knlGS:0000000000000000
[    2.255470] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.255505] CR2: 0000563e33d648e0 CR3: 0000000004c60005 CR4: 0000000000771ef0
[    2.255532] PKRU: 55555554
[    2.255541] Call Trace:
[    2.255559]  <TASK>
[    2.255575]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.255591]  register_netdevice (net/core/dev.c:11488)
[    2.255617] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.255639] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.255666] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    2.255694]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    2.255723]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    2.255748]  __driver_probe_device (drivers/base/dd.c:871)
[    2.255776]  driver_probe_device (drivers/base/dd.c:901)
[    2.255798]  __device_attach_driver (drivers/base/dd.c:1029)
[    2.255820]  bus_for_each_drv (drivers/base/bus.c:500)
[    2.255844]  __device_attach (drivers/base/dd.c:1101)
[    2.255869]  device_initial_probe (drivers/base/dd.c:1156)
[    2.255899]  bus_probe_device (drivers/base/bus.c:613)
[    2.255925]  device_add (drivers/base/core.c:3706)
[    2.255947] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    2.255985]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.256019]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.256041]  ksys_write (fs/read_write.c:740)
[    2.256068]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.256096]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.256121] RIP: 0033:0x7f64c520f08e
[    2.256140] 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
[    2.256215] RSP: 002b:00007ffd7556d5f0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.256270] RAX: ffffffffffffffda RBX: 00007f64c5391580 RCX: 00007f64c520f08e
[    2.256298] RDX: 0000000000000004 RSI: 0000563e6d5c1250 RDI: 0000000000000001
[    2.256344] RBP: 00007ffd7556d600 R08: 0000000000000000 R09: 0000000000000000
[    2.256371] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    2.256409] R13: 0000000000000004 R14: 0000563e6d5c1250 R15: 0000000000000000
| [    2.256703] ------------[ cut here ]------------
| [    2.256750] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bash/148
| [    2.256794] Modules linked in: netdevsim
| [    2.256869] Tainted: [W]=WARN
[    2.256886] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.256927] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.256956] 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
[    2.257021] RSP: 0018:ff6796b0803bf9d0 EFLAGS: 00010286
[    2.257040] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.257081] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff366b48c1d68200
[    2.257122] RBP: 0000000000000000 R08: ff366b48c35620d0 R09: ff366b48c4eb1030
[    2.257148] R10: ff366b48c4eaa118 R11: fefefefefefefeff R12: 0000000000000000
[    2.257187] R13: 0000000000000010 R14: ff366b48c4eaa000 R15: ff366b48c1d68200
[    2.257219] FS:  00007f64c519db80(0000) GS:ff366b49491da000(0000) knlGS:0000000000000000
[    2.257263] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.257303] CR2: 0000563e33d648e0 CR3: 0000000004c60005 CR4: 0000000000771ef0
[    2.257340] PKRU: 55555554
[    2.257350] Call Trace:
[    2.257367]  <TASK>
[    2.257387]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.257412]  register_netdevice (net/core/dev.c:11488)
[    2.257428] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.257460] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.257479] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    2.257516]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    2.257534]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    2.257560]  __driver_probe_device (drivers/base/dd.c:871)
[    2.257601]  driver_probe_device (drivers/base/dd.c:901)
[    2.257620]  __device_attach_driver (drivers/base/dd.c:1029)
[    2.257649]  bus_for_each_drv (drivers/base/bus.c:500)
[    2.257668]  __device_attach (drivers/base/dd.c:1101)
[    2.257688]  device_initial_probe (drivers/base/dd.c:1156)
[    2.257716]  bus_probe_device (drivers/base/bus.c:613)
[    2.257731]  device_add (drivers/base/core.c:3706)
[    2.257751] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    2.257776]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.257818]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.257845]  ksys_write (fs/read_write.c:740)
[    2.257887]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.257900]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.257931] RIP: 0033:0x7f64c520f08e
[    2.257944] 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
[    2.258025] RSP: 002b:00007ffd7556d620 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.258057] RAX: ffffffffffffffda RBX: 00007f64c5391580 RCX: 00007f64c520f08e
[    2.258085] RDX: 0000000000000004 RSI: 0000563e6d5c1250 RDI: 0000000000000001
[    2.258123] RBP: 00007ffd7556d630 R08: 0000000000000000 R09: 0000000000000000
[    2.258154] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    2.258192] R13: 0000000000000004 R14: 0000563e6d5c1250 R15: 0000000000000000
| [    2.292893] ------------[ cut here ]------------
| [    2.292925] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: ip/182
| [    2.292984] Modules linked in: netdevsim
| [    2.293058] Tainted: [W]=WARN
[    2.293074] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.293107] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.293145] 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
[    2.293208] RSP: 0018:ff6796b0803476d8 EFLAGS: 00010286
[    2.293234] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.293288] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff366b48c18d4700
[    2.293323] RBP: 0000000000000000 R08: ff366b48c18f8410 R09: ff366b48c4ea5830
[    2.293355] R10: ff366b48c4eae118 R11: fefefefefefefeff R12: ff6796b08034778c
[    2.293385] R13: 0000000000000011 R14: ff366b48c4eae000 R15: ff366b48c18d4700
[    2.293426] FS:  00007f88f8523840(0000) GS:ff366b494905a000(0000) knlGS:0000000000000000
[    2.293456] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.293495] CR2: 0000000026b8c988 CR3: 0000000004e89006 CR4: 0000000000771ef0
[    2.293523] PKRU: 55555554
[    2.293540] Call Trace:
[    2.293561]  <TASK>
[    2.293573]  rtmsg_ifinfo_newnet (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4567)
[    2.293586]  __dev_change_net_namespace (net/core/dev.c:12635)
[    2.293619]  ? rtnl_getlink (net/core/rtnetlink.c:4296 (discriminator 3))
[    2.293637]  do_setlink.isra.0 (net/core/rtnetlink.c:3108)
[    2.293657]  ? __nla_validate_parse (lib/nlattr.c:620)
[    2.293690]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    2.293713]  ? kmalloc_reserve (net/core/skbuff.c:613 (discriminator 7))
[    2.293740]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    2.293773]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    2.293789]  ? netlink_unicast (net/netlink/af_netlink.c:1270 net/netlink/af_netlink.c:1360)
[    2.293812]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.293843]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.293872]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.293895]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.293931]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    2.293961]  ___sys_sendmsg (net/socket.c:2752)
[    2.293982]  __sys_sendmsg (net/socket.c:2784)
[    2.294010]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.294033]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.294053] RIP: 0033:0x7f88f875d08e
[    2.294080] 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
[    2.294143] RSP: 002b:00007ffe7dc88bc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    2.294186] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f88f875d08e
[    2.294216] RDX: 0000000000000000 RSI: 00007ffe7dc88c70 RDI: 0000000000000005
[    2.294250] RBP: 00007ffe7dc88bd0 R08: 0000000000000000 R09: 0000000000000000
[    2.294281] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d0f4
[    2.294327] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe7dc89330
| [    2.294442] ------------[ cut here ]------------
| [    2.294490] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: ip/182
| [    2.294533] Modules linked in: netdevsim
| [    2.294602] Tainted: [W]=WARN
[    2.294623] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.294653] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.294680] 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
[    2.294751] RSP: 0018:ff6796b0803476c8 EFLAGS: 00010286
[    2.294769] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.294809] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff366b48c18ded00
[    2.294851] RBP: 0000000000000000 R08: ff366b48c18f8410 R09: ff366b48c35bb030
[    2.294877] R10: ff366b48c4eae118 R11: fefefefefefefeff R12: 0000000000000000
[    2.294922] R13: 0000000000000010 R14: ff366b48c4eae000 R15: ff366b48c18ded00
[    2.294966] FS:  00007f88f8523840(0000) GS:ff366b494905a000(0000) knlGS:0000000000000000
[    2.295002] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.295041] CR2: 0000000026b8c988 CR3: 0000000004e89006 CR4: 0000000000771ef0
[    2.295073] PKRU: 55555554
[    2.295088] Call Trace:
[    2.295104]  <TASK>
[    2.295116]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.295139]  __dev_change_net_namespace (net/core/dev.c:12695)
[    2.295170]  ? rtnl_getlink (net/core/rtnetlink.c:4296 (discriminator 3))
[    2.295194]  do_setlink.isra.0 (net/core/rtnetlink.c:3108)
[    2.295221]  ? __nla_validate_parse (lib/nlattr.c:620)
[    2.295255]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    2.295271]  ? kmalloc_reserve (net/core/skbuff.c:613 (discriminator 7))
[    2.295287]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    2.295330]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    2.295349]  ? netlink_unicast (net/netlink/af_netlink.c:1270 net/netlink/af_netlink.c:1360)
[    2.295371]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.295393]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.295421]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.295440]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.295461]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    2.295473]  ___sys_sendmsg (net/socket.c:2752)
[    2.295502]  __sys_sendmsg (net/socket.c:2784)
[    2.295524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.295543]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.295569] RIP: 0033:0x7f88f875d08e
[    2.295592] 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
[    2.295666] RSP: 002b:00007ffe7dc88bc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    2.295698] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f88f875d08e
[    2.295725] RDX: 0000000000000000 RSI: 00007ffe7dc88c70 RDI: 0000000000000005
[    2.295766] RBP: 00007ffe7dc88bd0 R08: 0000000000000000 R09: 0000000000000000
[    2.295796] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d0f4
[    2.295852] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe7dc89330
| [    2.306145] ------------[ cut here ]------------
| [    2.306201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/184
| [    2.306284] Modules linked in: netdevsim
| [    2.306391] Tainted: [W]=WARN
[    2.306427] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.306480] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.306522] 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
[    2.306605] RSP: 0018:ff6796b080357720 EFLAGS: 00010286
[    2.306675] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.306751] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff366b48c3416100
[    2.306828] RBP: 0000000000000000 R08: ff366b48c18f8410 R09: ff366b48c2ea5030
[    2.306914] R10: ff366b48c4eae118 R11: fefefefefefefeff R12: 0000000000000000
[    2.306962] R13: 0000000000000010 R14: ff366b48c4eae000 R15: ff366b48c3416100
[    2.307038] FS:  00007f12df414840(0000) GS:ff366b494915a000(0000) knlGS:0000000000000000
[    2.307067] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.307116] CR2: 000000003ff2a988 CR3: 0000000004e8b003 CR4: 0000000000771ef0
[    2.307164] PKRU: 55555554
[    2.307206] Call Trace:
[    2.307238]  <TASK>
[    2.307254]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.307269]  __dev_notify_flags (net/core/dev.c:9787)
[    2.307284]  ? rtnl_getlink (./include/linux/skbuff.h:1323 ./include/linux/skbuff.h:1332 net/core/rtnetlink.c:4288)
[    2.307355]  netif_change_flags (net/core/dev.c:9820)
[    2.307401]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    2.307440]  ? __nla_validate_parse (lib/nlattr.c:620)
[    2.307489]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    2.307528]  ? kmalloc_reserve (net/core/skbuff.c:613 (discriminator 7))
[    2.307593]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    2.307641]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    2.307680]  ? netlink_unicast (net/netlink/af_netlink.c:1270 net/netlink/af_netlink.c:1360)
[    2.307745]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.307793]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.307832]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.307930]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.307969]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    2.308016]  ___sys_sendmsg (net/socket.c:2752)
[    2.308083]  __sys_sendmsg (net/socket.c:2784)
[    2.308122]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.308140]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.308192] RIP: 0033:0x7f12df64e08e
[    2.308259] 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
[    2.308369] RSP: 002b:00007ffe5fb74850 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    2.308447] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f12df64e08e
[    2.308524] RDX: 0000000000000000 RSI: 00007ffe5fb74900 RDI: 0000000000000005
[    2.308600] RBP: 00007ffe5fb74860 R08: 0000000000000000 R09: 0000000000000000
[    2.308678] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d0f4
[    2.308755] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe5fb74fc0
| [    2.314154] ------------[ cut here ]------------
| [    2.314183] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/187
| [    2.314242] Modules linked in: netdevsim
| [    2.314351] Tainted: [W]=WARN
[    2.314388] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.314435] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.314477] 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
[    2.314559] RSP: 0018:ff6796b0803ff720 EFLAGS: 00010286
[    2.314631] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.314706] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff366b48c3416b00
[    2.314783] RBP: 0000000000000000 R08: ff366b48c35620d0 R09: ff366b48c2ea5030
[    2.314859] R10: ff366b48c4eaa118 R11: fefefefefefefeff R12: 0000000000000000
[    2.314940] R13: 0000000000000010 R14: ff366b48c4eaa000 R15: ff366b48c3416b00
[    2.315020] FS:  00007f345a86a840(0000) GS:ff366b494915a000(0000) knlGS:0000000000000000
[    2.315069] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.315120] CR2: 000000000f064988 CR3: 0000000004db2006 CR4: 0000000000771ef0
[    2.315198] PKRU: 55555554
[    2.315230] Call Trace:
[    2.315240]  <TASK>
[    2.315277]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.315320]  __dev_notify_flags (net/core/dev.c:9787)
[    2.315338]  ? rtnl_getlink (./include/linux/skbuff.h:1323 ./include/linux/skbuff.h:1332 net/core/rtnetlink.c:4288)
[    2.315351]  netif_change_flags (net/core/dev.c:9820)
[    2.315366]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    2.315409]  ? __nla_validate_parse (lib/nlattr.c:620)
[    2.315481]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    2.315520]  ? kmalloc_reserve (net/core/skbuff.c:613 (discriminator 7))
[    2.315566]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    2.315608]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    2.315700]  ? netlink_unicast (net/netlink/af_netlink.c:1270 net/netlink/af_netlink.c:1360)
[    2.315739]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.315836]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.315874]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.315898]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.315942]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    2.315981]  ___sys_sendmsg (net/socket.c:2752)
[    2.316046]  __sys_sendmsg (net/socket.c:2784)
[    2.316098]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.316136]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.316232] RIP: 0033:0x7f345aaa408e
[    2.316269] 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
[    2.316404] RSP: 002b:00007ffcfd7b7750 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    2.316452] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f345aaa408e
[    2.316554] RDX: 0000000000000000 RSI: 00007ffcfd7b7800 RDI: 0000000000000005
[    2.316629] RBP: 00007ffcfd7b7760 R08: 0000000000000000 R09: 0000000000000000
[    2.316705] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d0f4
[    2.316753] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcfd7b7ec0
| [    2.363820] ------------[ cut here ]------------
| [    2.363848] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bash/148
| [    2.363906] Modules linked in: netconsole netdevsim
| [    2.364002] Tainted: [W]=WARN
[    2.364023] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.364054] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.364082] 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
[    2.364148] RSP: 0018:ff6796b0803bfb18 EFLAGS: 00010286
[    2.364180] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[    2.364229] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff366b48c3416100
[    2.364263] RBP: 0000000000000000 R08: ff366b48c18f8410 R09: ff366b48c2ea5030
[    2.364293] R10: ff366b48c4eae118 R11: fefefefefefefeff R12: 0000000000000000
[    2.364340] R13: 0000000000000010 R14: ff366b48c4eae000 R15: ff366b48c3416100
[    2.364375] FS:  00007f64c519db80(0000) GS:ff366b49491da000(0000) knlGS:0000000000000000
[    2.364423] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.364465] CR2: 0000563e6d56e3ec CR3: 0000000004c60002 CR4: 0000000000771ef0
[    2.364494] PKRU: 55555554
[    2.364503] Call Trace:
[    2.364521]  <TASK>
[    2.364538]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.364554]  netif_close_many (net/core/dev.c:1804)
[    2.364574]  unregister_netdevice_many_notify (net/core/dev.c:12330 net/core/dev.c:12400)
[    2.364604]  ? __destroy_inode (fs/inode.c:371)
[    2.364625]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.364659] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.364692] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.364723] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.364751] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    2.364779]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    2.364803]  bus_remove_device (drivers/base/bus.c:657)
[    2.364825]  ? device_remove_attrs (drivers/base/core.c:2844 drivers/base/core.c:2977)
[    2.364857]  device_del (drivers/base/core.c:3895)
[    2.364890]  device_unregister (drivers/base/core.c:3936)
[    2.364928] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    2.364950]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.364987]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.365007]  ksys_write (fs/read_write.c:740)
[    2.365033]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.365053]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.365075] RIP: 0033:0x7f64c520f08e
[    2.365102] 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
[    2.365200] RSP: 002b:00007ffd7556ea80 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.365247] RAX: ffffffffffffffda RBX: 00007f64c5391580 RCX: 00007f64c520f08e
[    2.365288] RDX: 0000000000000004 RSI: 0000563e6d5c1250 RDI: 0000000000000001
[    2.365331] RBP: 00007ffd7556ea90 R08: 0000000000000000 R09: 0000000000000000
[    2.365355] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    2.365394] R13: 0000000000000004 R14: 0000563e6d5c1250 R15: 0000000000000000
| [    2.365537] ------------[ cut here ]------------
| [    2.365574] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bash/148
| [    2.365622] Modules linked in: netconsole netdevsim
| [    2.365687] Tainted: [W]=WARN
[    2.365706] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.365746] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.365779] 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
[    2.365859] RSP: 0018:ff6796b0803bfb88 EFLAGS: 00010286
[    2.365875] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.365914] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff366b48c3416100
[    2.365955] RBP: 0000000000000000 R08: ff366b48c18f8410 R09: ff366b48c4df7830
[    2.365993] R10: ff366b48c4eae118 R11: fefefefefefefeff R12: 0000000000000000
[    2.366034] R13: 0000000000000011 R14: ff366b48c4eae000 R15: ff366b48c3416100
[    2.366067] FS:  00007f64c519db80(0000) GS:ff366b49491da000(0000) knlGS:0000000000000000
[    2.366109] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.366136] CR2: 0000563e6d56e3ec CR3: 0000000004c60002 CR4: 0000000000771ef0
[    2.366174] PKRU: 55555554
[    2.366184] Call Trace:
[    2.366202]  <TASK>
[    2.366218]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.366236]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.366262] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.366291] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.366326] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.366349] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    2.366377]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    2.366406]  bus_remove_device (drivers/base/bus.c:657)
[    2.366437]  ? device_remove_attrs (drivers/base/core.c:2844 drivers/base/core.c:2977)
[    2.366475]  device_del (drivers/base/core.c:3895)
[    2.366494]  device_unregister (drivers/base/core.c:3936)
[    2.366524] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    2.366565]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.366590]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.366610]  ksys_write (fs/read_write.c:740)
[    2.366629]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.366651]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.366684] RIP: 0033:0x7f64c520f08e
[    2.366698] 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
[    2.366769] RSP: 002b:00007ffd7556ea80 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.366810] RAX: ffffffffffffffda RBX: 00007f64c5391580 RCX: 00007f64c520f08e
[    2.366841] RDX: 0000000000000004 RSI: 0000563e6d5c1250 RDI: 0000000000000001
[    2.366880] RBP: 00007ffd7556ea90 R08: 0000000000000000 R09: 0000000000000000
[    2.366932] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    2.366960] R13: 0000000000000004 R14: 0000563e6d5c1250 R15: 0000000000000000
| [    2.400957] ------------[ cut here ]------------
| [    2.400998] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bash/148
| [    2.401040] Modules linked in: netconsole netdevsim
| [    2.401107] Tainted: [W]=WARN
[    2.401123] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.401161] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.401181] 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
[    2.401259] RSP: 0018:ff6796b0803bfb18 EFLAGS: 00010286
[    2.401275] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[    2.401321] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff366b48c3416100
[    2.401364] RBP: 0000000000000000 R08: ff366b48c35620d0 R09: ff366b48c4e7d030
[    2.401402] R10: ff366b48c4eaa118 R11: fefefefefefefeff R12: 0000000000000000
[    2.401425] R13: 0000000000000010 R14: ff366b48c4eaa000 R15: ff366b48c3416100
[    2.401465] FS:  00007f64c519db80(0000) GS:ff366b49491da000(0000) knlGS:0000000000000000
[    2.401495] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.401531] CR2: 0000563e6d56e3ec CR3: 0000000004c60002 CR4: 0000000000771ef0
[    2.401559] PKRU: 55555554
[    2.401568] Call Trace:
[    2.401585]  <TASK>
[    2.401602]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.401618]  netif_close_many (net/core/dev.c:1804)
[    2.401644]  unregister_netdevice_many_notify (net/core/dev.c:12330 net/core/dev.c:12400)
[    2.401664]  ? __destroy_inode (fs/inode.c:371)
[    2.401684]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.401713] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.401729] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.401782] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.401807] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    2.401836]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    2.401856]  bus_remove_device (drivers/base/bus.c:657)
[    2.401879]  ? device_remove_attrs (drivers/base/core.c:2844 drivers/base/core.c:2977)
[    2.401921]  device_del (drivers/base/core.c:3895)
[    2.401937]  device_unregister (drivers/base/core.c:3936)
[    2.401958] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    2.401995]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.402015]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.402040]  ksys_write (fs/read_write.c:740)
[    2.402065]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.402085]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.402109] RIP: 0033:0x7f64c520f08e
[    2.402122] 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
[    2.402198] RSP: 002b:00007ffd7556eb80 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.402235] RAX: ffffffffffffffda RBX: 00007f64c5391580 RCX: 00007f64c520f08e
[    2.402261] RDX: 0000000000000004 RSI: 0000563e6d5c1250 RDI: 0000000000000001
[    2.402300] RBP: 00007ffd7556eb90 R08: 0000000000000000 R09: 0000000000000000
[    2.402335] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    2.402373] R13: 0000000000000004 R14: 0000563e6d5c1250 R15: 0000000000000000
| [    2.402492] ------------[ cut here ]------------
| [    2.402540] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: bash/148
| [    2.402581] Modules linked in: netconsole netdevsim
| [    2.402654] Tainted: [W]=WARN
[    2.402671] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.402702] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.402728] 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
[    2.402797] RSP: 0018:ff6796b0803bfb88 EFLAGS: 00010286
[    2.402815] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.402849] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff366b48c3416100
[    2.402892] RBP: 0000000000000000 R08: ff366b48c35620d0 R09: ff366b48c4ea7830
[    2.402921] R10: ff366b48c4eaa118 R11: fefefefefefefeff R12: 0000000000000000
[    2.402960] R13: 0000000000000011 R14: ff366b48c4eaa000 R15: ff366b48c3416100
[    2.402987] FS:  00007f64c519db80(0000) GS:ff366b49491da000(0000) knlGS:0000000000000000
[    2.403040] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.403075] CR2: 0000563e6d56e3ec CR3: 0000000004c60002 CR4: 0000000000771ef0
[    2.403104] PKRU: 55555554
[    2.403113] Call Trace:
[    2.403128]  <TASK>
[    2.403147]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.403169]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.403189] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.403216] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.403244] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.403272] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    2.403300]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    2.403330]  bus_remove_device (drivers/base/bus.c:657)
[    2.403349]  ? device_remove_attrs (drivers/base/core.c:2844 drivers/base/core.c:2977)
[    2.403382]  device_del (drivers/base/core.c:3895)
[    2.403396]  device_unregister (drivers/base/core.c:3936)
[    2.403415] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    2.403441]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.403468]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.403492]  ksys_write (fs/read_write.c:740)
[    2.403512]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.403536]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.403561] RIP: 0033:0x7f64c520f08e
[    2.403586] 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
[    2.403642] RSP: 002b:00007ffd7556eb80 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.403677] RAX: ffffffffffffffda RBX: 00007f64c5391580 RCX: 00007f64c520f08e
[    2.403705] RDX: 0000000000000004 RSI: 0000563e6d5c1250 RDI: 0000000000000001
[    2.403744] RBP: 00007ffd7556eb90 R08: 0000000000000000 R09: 0000000000000000
[    2.403774] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    2.403806] R13: 0000000000000004 R14: 0000563e6d5c1250 R15: 0000000000000000
| [    2.468246] ------------[ cut here ]------------
| [    2.468278] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: 1/63
| [    2.468343] Modules linked in: netdevsim [last unloaded: netconsole]
| [    2.468438] Tainted: [W]=WARN
[    2.468449] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.468486] Workqueue: netns cleanup_net
[    2.468514] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.468542] 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
[    2.468617] RSP: 0018:ff6796b08022fc08 EFLAGS: 00010286
[    2.468645] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[    2.468683] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff366b48c18d4500
[    2.468723] RBP: 0000000000000000 R08: ff366b48c3562150 R09: ff366b48c1f8702c
[    2.468749] R10: ff366b48c4e78118 R11: fefefefefefefeff R12: 0000000000000000
[    2.468788] R13: 0000000000000010 R14: ff366b48c4e78000 R15: ff366b48c18d4500
[    2.468823] FS:  0000000000000000(0000) GS:ff366b49490da000(0000) knlGS:0000000000000000
[    2.468889] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.468925] CR2: 0000563e33d63d5c CR3: 0000000039242004 CR4: 0000000000771ef0
[    2.468953] PKRU: 55555554
[    2.468969] Call Trace:
[    2.468988]  <TASK>
[    2.469007]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.469031]  netif_close_many (net/core/dev.c:1804)
[    2.469059]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[    2.469090]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    2.469111]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    2.469132]  cleanup_net (net/core/net_namespace.c:702)
[    2.469146]  process_one_work (kernel/workqueue.c:3314)
[    2.469173]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.469197]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.469221]  kthread (kernel/kthread.c:436)
[    2.469262]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.469281]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.469302]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.469334]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.469468] ------------[ cut here ]------------
| [    2.469510] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: 1/63
| [    2.469563] Modules linked in: netdevsim [last unloaded: netconsole]
| [    2.469644] Tainted: [W]=WARN
[    2.469671] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.469699] Workqueue: netns cleanup_net
[    2.469724] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.469758] 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
[    2.469859] RSP: 0018:ff6796b08022fc78 EFLAGS: 00010286
[    2.469889] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.469918] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff366b48c18d4500
[    2.469952] RBP: 0000000000000000 R08: ff366b48c3562150 R09: ff366b48c4ea182c
[    2.469993] R10: ff366b48c4e78118 R11: fefefefefefefeff R12: 0000000000000000
[    2.470036] R13: 0000000000000011 R14: ff366b48c4e78000 R15: ff366b48c18d4500
[    2.470078] FS:  0000000000000000(0000) GS:ff366b49490da000(0000) knlGS:0000000000000000
[    2.470110] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.470150] CR2: 00007fbd88846680 CR3: 0000000004d75005 CR4: 0000000000771ef0
[    2.470177] PKRU: 55555554
[    2.470195] Call Trace:
[    2.470216]  <TASK>
[    2.470226]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.470246]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    2.470279]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    2.470297]  cleanup_net (net/core/net_namespace.c:702)
[    2.470328]  process_one_work (kernel/workqueue.c:3314)
[    2.470354]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.470378]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.470402]  kthread (kernel/kthread.c:436)
[    2.470430]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.470454]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.470480]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:netif_change_flags:rtnl_newlink
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:netif_close_many:unregister_netdevice_many_notify:unregister_netdevice_queue
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_change_net_namespace:rtnl_newlink:rtnetlink_rcv_msg
rtmsg_ifinfo_build_skb:rtmsg_ifinfo_newnet:__dev_change_net_namespace:rtnl_newlink:rtnetlink_rcv_msg
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