======================================
| [    2.383969] ------------[ cut here ]------------
| [    2.384014] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: ip/175
| [    2.384074] Modules linked in: netconsole netdevsim
| [    2.384167] Tainted: [W]=WARN
[    2.384191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.384230] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.384262] 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
[    2.384372] RSP: 0018:ff84a255c033fcc8 EFLAGS: 00010286
[    2.384402] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.384448] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff32fb1e830d5600
[    2.384483] RBP: 0000000000000000 R08: ff32fb1e818e8410 R09: ff32fb1e8676702c
[    2.384535] R10: ff32fb1e86762118 R11: fefefefefefefeff R12: 0000000000000000
[    2.384579] R13: 0000000000000010 R14: ff32fb1e86762000 R15: ff32fb1e830d5600
[    2.384638] FS:  00007fee08d67840(0000) GS:ff32fb1f1585a000(0000) knlGS:0000000000000000
[    2.384687] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.384725] CR2: 0000000000479648 CR3: 0000000004ecd005 CR4: 0000000000771ef0
[    2.384776] PKRU: 55555554
[    2.384793] Call Trace:
[    2.384810]  <TASK>
[    2.384827]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.384853]  register_netdevice (net/core/dev.c:11488)
[    2.384878]  register_netdev (net/core/dev.c:11552)
[    2.384902]  loopback_net_init (drivers/net/loopback.c:218)
[    2.384929]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.384966]  ops_init (net/core/net_namespace.c:137)
[    2.384992]  setup_net (net/core/net_namespace.c:446)
[    2.385016]  copy_net_ns (net/core/net_namespace.c:579)
[    2.385039]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.385073]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.385102]  ksys_unshare (kernel/fork.c:3243)
[    2.385128]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.385152]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.385179]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.385213] RIP: 0033:0x7fee09029bcb
[    2.385239] 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
[    2.385353] RSP: 002b:00007ffe196317d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    2.385400] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fee09029bcb
[    2.385448] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    2.385492] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    2.385543] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe19633a00
[    2.385588] R13: 0000000000000001 R14: 00007fee08d676f8 R15: 00007ffe19634837
| [    2.389091] ------------[ cut here ]------------
| [    2.389163] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/176
| [    2.389260] Modules linked in: netconsole netdevsim
| [    2.389434] Tainted: [W]=WARN
[    2.389490] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.389574] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.389640] 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
[    2.389775] RSP: 0018:ff84a255c0347720 EFLAGS: 00010286
[    2.389840] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.389918] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff32fb1e830df000
[    2.389997] RBP: 0000000000000000 R08: ff32fb1e818e8410 R09: ff32fb1e8303d02c
[    2.390074] R10: ff32fb1e86762118 R11: fefefefefefefeff R12: 0000000000000000
[    2.390151] R13: 0000000000000010 R14: ff32fb1e86762000 R15: ff32fb1e830df000
[    2.390234] FS:  00007fd69e5fd840(0000) GS:ff32fb1f1595a000(0000) knlGS:0000000000000000
[    2.390315] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.390391] CR2: 000000003a09a988 CR3: 0000000003351006 CR4: 0000000000771ef0
[    2.390471] PKRU: 55555554
[    2.390527] Call Trace:
[    2.390579]  <TASK>
[    2.390629]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.390687]  __dev_notify_flags (net/core/dev.c:9787)
[    2.390747]  ? rtnl_getlink (./include/linux/skbuff.h:1323 ./include/linux/skbuff.h:1332 net/core/rtnetlink.c:4288)
[    2.390805]  netif_change_flags (net/core/dev.c:9820)
[    2.390865]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    2.390924]  ? __nla_validate_parse (lib/nlattr.c:620)
[    2.390993]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    2.391052]  ? kmalloc_reserve (net/core/skbuff.c:613 (discriminator 7))
[    2.391119]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    2.391185]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    2.391244]  ? netlink_unicast (net/netlink/af_netlink.c:1270 net/netlink/af_netlink.c:1360)
[    2.391304]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.391378]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.391436]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.391494]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.391556]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    2.391616]  ___sys_sendmsg (net/socket.c:2752)
[    2.391675]  __sys_sendmsg (net/socket.c:2784)
[    2.391733]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.391793]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.391858] RIP: 0033:0x7fd69e83708e
[    2.391916] 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
[    2.392054] RSP: 002b:00007ffc36802fb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    2.392134] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69e83708e
[    2.392214] RDX: 0000000000000000 RSI: 00007ffc36803060 RDI: 0000000000000005
[    2.392292] RBP: 00007ffc36802fc0 R08: 0000000000000000 R09: 0000000000000000
[    2.392377] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d063
[    2.392455] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc36803730
| [    2.402652] ------------[ cut here ]------------
| [    2.402696] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: bash/149
| [    2.402760] Modules linked in: netconsole netdevsim
| [    2.402866] Tainted: [W]=WARN
[    2.402889] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.402929] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.402962] 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
[    2.403067] RSP: 0018:ff84a255c03cf9d0 EFLAGS: 00010286
[    2.403099] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.403145] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff32fb1e81c23f00
[    2.403190] RBP: 0000000000000000 R08: ff32fb1e84c4fc50 R09: ff32fb1e86765030
[    2.403236] R10: ff32fb1e8675c118 R11: fefefefefefefeff R12: 0000000000000000
[    2.403283] R13: 0000000000000010 R14: ff32fb1e8675c000 R15: ff32fb1e81c23f00
[    2.403332] FS:  00007f488efcab80(0000) GS:ff32fb1f1585a000(0000) knlGS:0000000000000000
[    2.403388] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.403424] CR2: 000055fd72216cb8 CR3: 0000000004d4c003 CR4: 0000000000771ef0
[    2.403470] PKRU: 55555554
[    2.403485] Call Trace:
[    2.403501]  <TASK>
[    2.403523]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.403555]  register_netdevice (net/core/dev.c:11488)
[    2.403583] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.403625] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.403665] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    2.403699]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    2.403730]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    2.403764]  __driver_probe_device (drivers/base/dd.c:871)
[    2.403802]  driver_probe_device (drivers/base/dd.c:901)
[    2.403828]  __device_attach_driver (drivers/base/dd.c:1029)
[    2.403860]  bus_for_each_drv (drivers/base/bus.c:500)
[    2.403885]  __device_attach (drivers/base/dd.c:1101)
[    2.403909]  device_initial_probe (drivers/base/dd.c:1156)
[    2.403934]  bus_probe_device (drivers/base/bus.c:613)
[    2.403957]  device_add (drivers/base/core.c:3706)
[    2.403981] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    2.404018]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.404051]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.404079]  ksys_write (fs/read_write.c:740)
[    2.404101]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.404129]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.404167] RIP: 0033:0x7f488f03c08e
[    2.404192] 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
[    2.404292] RSP: 002b:00007ffc955de380 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.404341] RAX: ffffffffffffffda RBX: 00007f488f1be580 RCX: 00007f488f03c08e
[    2.404385] RDX: 0000000000000004 RSI: 000055fd72266cb0 RDI: 0000000000000001
[    2.404426] RBP: 00007ffc955de390 R08: 0000000000000000 R09: 0000000000000000
[    2.404473] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    2.404526] R13: 0000000000000004 R14: 000055fd72266cb0 R15: 0000000000000000
| [    2.404977] ------------[ cut here ]------------
| [    2.405010] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: bash/149
| [    2.405076] Modules linked in: netconsole netdevsim
| [    2.405174] Tainted: [W]=WARN
[    2.405197] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.405236] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.405267] 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
[    2.405377] RSP: 0018:ff84a255c03cf9d0 EFLAGS: 00010286
[    2.405409] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.405456] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff32fb1e830d5600
[    2.405499] RBP: 0000000000000000 R08: ff32fb1e833b9410 R09: ff32fb1e86783030
[    2.405549] R10: ff32fb1e86758118 R11: fefefefefefefeff R12: 0000000000000000
[    2.405595] R13: 0000000000000010 R14: ff32fb1e86758000 R15: ff32fb1e830d5600
[    2.405643] FS:  00007f488efcab80(0000) GS:ff32fb1f1585a000(0000) knlGS:0000000000000000
[    2.405691] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.405728] CR2: 000055fd72216cb8 CR3: 0000000004d4c003 CR4: 0000000000771ef0
[    2.405773] PKRU: 55555554
[    2.405789] Call Trace:
[    2.405805]  <TASK>
[    2.405821]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.405845]  register_netdevice (net/core/dev.c:11488)
[    2.405871] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    2.405906] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    2.405941] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    2.405976]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    2.406001]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    2.406038]  __driver_probe_device (drivers/base/dd.c:871)
[    2.406070]  driver_probe_device (drivers/base/dd.c:901)
[    2.406094]  __device_attach_driver (drivers/base/dd.c:1029)
[    2.406131]  bus_for_each_drv (drivers/base/bus.c:500)
[    2.406153]  __device_attach (drivers/base/dd.c:1101)
[    2.406177]  device_initial_probe (drivers/base/dd.c:1156)
[    2.406201]  bus_probe_device (drivers/base/bus.c:613)
[    2.406225]  device_add (drivers/base/core.c:3706)
[    2.406248] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    2.406279]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.406311]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.406343]  ksys_write (fs/read_write.c:740)
[    2.406368]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.406392]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.406426] RIP: 0033:0x7f488f03c08e
[    2.406448] 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
[    2.406558] RSP: 002b:00007ffc955de3b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.406605] RAX: ffffffffffffffda RBX: 00007f488f1be580 RCX: 00007f488f03c08e
[    2.406652] RDX: 0000000000000004 RSI: 000055fd72266cb0 RDI: 0000000000000001
[    2.406701] RBP: 00007ffc955de3c0 R08: 0000000000000000 R09: 0000000000000000
[    2.406744] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    2.406789] R13: 0000000000000004 R14: 000055fd72266cb0 R15: 0000000000000000
| [    2.445535] ------------[ cut here ]------------
| [    2.445626] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/194
| [    2.445727] Modules linked in: netconsole netdevsim
| [    2.445899] Tainted: [W]=WARN
[    2.445959] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.446035] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.446105] 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
[    2.446252] RSP: 0018:ff84a255c04e36d8 EFLAGS: 00010286
[    2.446319] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.446405] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff32fb1e81891800
[    2.446485] RBP: 0000000000000000 R08: ff32fb1e84c4fc50 R09: ff32fb1e86776830
[    2.446573] R10: ff32fb1e8675c118 R11: fefefefefefefeff R12: ff84a255c04e378c
[    2.446653] R13: 0000000000000011 R14: ff32fb1e8675c000 R15: ff32fb1e81891800
[    2.446738] FS:  00007f4182936840(0000) GS:ff32fb1f1595a000(0000) knlGS:0000000000000000
[    2.446821] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.446897] CR2: 000000001c16e988 CR3: 0000000001950004 CR4: 0000000000771ef0
[    2.446981] PKRU: 55555554
[    2.447033] Call Trace:
[    2.447088]  <TASK>
[    2.447142]  rtmsg_ifinfo_newnet (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4567)
[    2.447207]  __dev_change_net_namespace (net/core/dev.c:12635)
[    2.447278]  ? rtnl_getlink (net/core/rtnetlink.c:4296 (discriminator 3))
[    2.447347]  do_setlink.isra.0 (net/core/rtnetlink.c:3108)
[    2.447412]  ? __nla_validate_parse (lib/nlattr.c:620)
[    2.447484]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    2.447554]  ? kmalloc_reserve (net/core/skbuff.c:613 (discriminator 7))
[    2.447617]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    2.447687]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    2.447751]  ? netlink_unicast (net/netlink/af_netlink.c:1270 net/netlink/af_netlink.c:1360)
[    2.447815]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.447885]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.447949]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.448011]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.448074]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    2.448139]  ___sys_sendmsg (net/socket.c:2752)
[    2.448203]  __sys_sendmsg (net/socket.c:2784)
[    2.448266]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.448331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.448409] RIP: 0033:0x7f4182b7008e
[    2.448471] 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
[    2.448621] RSP: 002b:00007ffd7f868480 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    2.448706] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4182b7008e
[    2.448790] RDX: 0000000000000000 RSI: 00007ffd7f868530 RDI: 0000000000000005
[    2.448872] RBP: 00007ffd7f868490 R08: 0000000000000000 R09: 0000000000000000
[    2.448955] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d063
[    2.449036] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd7f868bf0
| [    2.449313] ------------[ cut here ]------------
| [    2.449385] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/194
| [    2.449478] Modules linked in: netconsole netdevsim
| [    2.449642] Tainted: [W]=WARN
[    2.449698] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.449768] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.449833] 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
[    2.449972] RSP: 0018:ff84a255c04e36c8 EFLAGS: 00010286
[    2.450039] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.450120] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff32fb1e81891600
[    2.450200] RBP: 0000000000000000 R08: ff32fb1e84c4fc50 R09: ff32fb1e8303d030
[    2.450284] R10: ff32fb1e8675c118 R11: fefefefefefefeff R12: 0000000000000000
[    2.450374] R13: 0000000000000010 R14: ff32fb1e8675c000 R15: ff32fb1e81891600
[    2.450461] FS:  00007f4182936840(0000) GS:ff32fb1f1595a000(0000) knlGS:0000000000000000
[    2.450555] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.450631] CR2: 000000001c16e988 CR3: 0000000001950004 CR4: 0000000000771ef0
[    2.450722] PKRU: 55555554
[    2.450775] Call Trace:
[    2.450830]  <TASK>
[    2.450882]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.450945]  __dev_change_net_namespace (net/core/dev.c:12695)
[    2.451017]  ? rtnl_getlink (net/core/rtnetlink.c:4296 (discriminator 3))
[    2.451079]  do_setlink.isra.0 (net/core/rtnetlink.c:3108)
[    2.451144]  ? __nla_validate_parse (lib/nlattr.c:620)
[    2.451217]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    2.451281]  ? kmalloc_reserve (net/core/skbuff.c:613 (discriminator 7))
[    2.451350]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    2.451421]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    2.451485]  ? netlink_unicast (net/netlink/af_netlink.c:1270 net/netlink/af_netlink.c:1360)
[    2.451554]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.451622]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.451685]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.451746]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.451805]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    2.451864]  ___sys_sendmsg (net/socket.c:2752)
[    2.451923]  __sys_sendmsg (net/socket.c:2784)
[    2.451983]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.452042]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.452106] RIP: 0033:0x7f4182b7008e
[    2.452163] 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
[    2.452296] RSP: 002b:00007ffd7f868480 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    2.452383] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4182b7008e
[    2.452462] RDX: 0000000000000000 RSI: 00007ffd7f868530 RDI: 0000000000000005
[    2.452547] RBP: 00007ffd7f868490 R08: 0000000000000000 R09: 0000000000000000
[    2.452625] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d063
[    2.452703] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd7f868bf0
| [    2.465357] ------------[ cut here ]------------
| [    2.465432] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/196
| [    2.465535] Modules linked in: netconsole netdevsim
| [    2.465704] Tainted: [W]=WARN
[    2.465764] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.465838] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.465907] 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
[    2.466051] RSP: 0018:ff84a255c04f3720 EFLAGS: 00010286
[    2.466120] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.466201] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff32fb1e81c24200
[    2.466283] RBP: 0000000000000000 R08: ff32fb1e84c4fc50 R09: ff32fb1e8303d030
[    2.466372] R10: ff32fb1e8675c118 R11: fefefefefefefeff R12: 0000000000000000
[    2.466454] R13: 0000000000000010 R14: ff32fb1e8675c000 R15: ff32fb1e81c24200
[    2.466545] FS:  00007fb8ee3ba840(0000) GS:ff32fb1f1595a000(0000) knlGS:0000000000000000
[    2.466624] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.466695] CR2: 00000000174da988 CR3: 0000000004c46001 CR4: 0000000000771ef0
[    2.466774] PKRU: 55555554
[    2.466828] Call Trace:
[    2.466882]  <TASK>
[    2.466936]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.466999]  __dev_notify_flags (net/core/dev.c:9787)
[    2.467063]  ? rtnl_getlink (./include/linux/skbuff.h:1323 ./include/linux/skbuff.h:1332 net/core/rtnetlink.c:4288)
[    2.467121]  netif_change_flags (net/core/dev.c:9820)
[    2.467183]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    2.467248]  ? __nla_validate_parse (lib/nlattr.c:620)
[    2.467321]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    2.467393]  ? kmalloc_reserve (net/core/skbuff.c:613 (discriminator 7))
[    2.467452]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    2.467524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    2.467582]  ? netlink_unicast (net/netlink/af_netlink.c:1270 net/netlink/af_netlink.c:1360)
[    2.467641]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.467706]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.467764]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.467822]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.467880]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    2.467940]  ___sys_sendmsg (net/socket.c:2752)
[    2.467999]  __sys_sendmsg (net/socket.c:2784)
[    2.468057]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.468116]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.468182] RIP: 0033:0x7fb8ee5f408e
[    2.468239] 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
[    2.468381] RSP: 002b:00007ffe38012d90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    2.468460] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb8ee5f408e
[    2.468546] RDX: 0000000000000000 RSI: 00007ffe38012e40 RDI: 0000000000000005
[    2.468624] RBP: 00007ffe38012da0 R08: 0000000000000000 R09: 0000000000000000
[    2.468702] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d063
[    2.468780] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe38013500
| [    2.475352] ------------[ cut here ]------------
| [    2.475426] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/199
| [    2.475523] Modules linked in: netconsole netdevsim
| [    2.475693] Tainted: [W]=WARN
[    2.475753] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.475828] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.475898] 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
[    2.476041] RSP: 0018:ff84a255c0503720 EFLAGS: 00010286
[    2.476111] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.476194] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff32fb1e830d5d00
[    2.476278] RBP: 0000000000000000 R08: ff32fb1e833b9410 R09: ff32fb1e8303d030
[    2.476368] R10: ff32fb1e86758118 R11: fefefefefefefeff R12: 0000000000000000
[    2.476451] R13: 0000000000000010 R14: ff32fb1e86758000 R15: ff32fb1e830d5d00
[    2.476543] FS:  00007ff797d8d840(0000) GS:ff32fb1f1595a000(0000) knlGS:0000000000000000
[    2.476624] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.476696] CR2: 00000000302f4988 CR3: 0000000004ef6004 CR4: 0000000000771ef0
[    2.476775] PKRU: 55555554
[    2.476824] Call Trace:
[    2.476874]  <TASK>
[    2.476924]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.476981]  __dev_notify_flags (net/core/dev.c:9787)
[    2.477040]  ? rtnl_getlink (./include/linux/skbuff.h:1323 ./include/linux/skbuff.h:1332 net/core/rtnetlink.c:4288)
[    2.477097]  netif_change_flags (net/core/dev.c:9820)
[    2.477156]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    2.477215]  ? __nla_validate_parse (lib/nlattr.c:620)
[    2.477281]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    2.477349]  ? kmalloc_reserve (net/core/skbuff.c:613 (discriminator 7))
[    2.477409]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    2.477474]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    2.477541]  ? netlink_unicast (net/netlink/af_netlink.c:1270 net/netlink/af_netlink.c:1360)
[    2.477598]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    2.477662]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    2.477720]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    2.477777]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    2.477835]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    2.477894]  ___sys_sendmsg (net/socket.c:2752)
[    2.477952]  __sys_sendmsg (net/socket.c:2784)
[    2.478010]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.478070]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.478135] RIP: 0033:0x7ff797fc708e
[    2.478193] 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
[    2.478329] RSP: 002b:00007fff564aa330 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    2.478409] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff797fc708e
[    2.478490] RDX: 0000000000000000 RSI: 00007fff564aa3e0 RDI: 0000000000000005
[    2.478572] RBP: 00007fff564aa340 R08: 0000000000000000 R09: 0000000000000000
[    2.478649] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d063
[    2.478727] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff564aaaa0
| [    2.488402] ------------[ cut here ]------------
| [    2.488443] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: bash/149
| [    2.488499] Modules linked in: netconsole netdevsim
| [    2.488615] Tainted: [W]=WARN
[    2.488637] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.488675] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.488706] 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
[    2.488809] RSP: 0018:ff84a255c03cfb18 EFLAGS: 00010286
[    2.488840] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[    2.488885] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff32fb1e81891800
[    2.488929] RBP: 0000000000000000 R08: ff32fb1e84c4fc50 R09: ff32fb1e86782030
[    2.488972] R10: ff32fb1e8675c118 R11: fefefefefefefeff R12: 0000000000000000
[    2.489017] R13: 0000000000000010 R14: ff32fb1e8675c000 R15: ff32fb1e81891800
[    2.489066] FS:  00007f488efcab80(0000) GS:ff32fb1f1585a000(0000) knlGS:0000000000000000
[    2.489112] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.489153] CR2: 000055fd7225ac68 CR3: 0000000004d4c006 CR4: 0000000000771ef0
[    2.489205] PKRU: 55555554
[    2.489221] Call Trace:
[    2.489238]  <TASK>
[    2.489254]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.489283]  netif_close_many (net/core/dev.c:1804)
[    2.489309]  unregister_netdevice_many_notify (net/core/dev.c:12330 net/core/dev.c:12400)
[    2.489340]  ? __destroy_inode (fs/inode.c:371)
[    2.489368]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.489398] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.489434] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.489466] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.489502] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    2.489548]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    2.489581]  bus_remove_device (drivers/base/bus.c:657)
[    2.489605]  ? device_remove_attrs (drivers/base/core.c:2844 drivers/base/core.c:2977)
[    2.489641]  device_del (drivers/base/core.c:3895)
[    2.489663]  device_unregister (drivers/base/core.c:3936)
[    2.489688] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    2.489723]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.489788]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.489812]  ksys_write (fs/read_write.c:740)
[    2.489837]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.489859]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.489888] RIP: 0033:0x7f488f03c08e
[    2.489912] 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
[    2.490018] RSP: 002b:00007ffc955de740 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.490068] RAX: ffffffffffffffda RBX: 00007f488f1be580 RCX: 00007f488f03c08e
[    2.490114] RDX: 0000000000000004 RSI: 000055fd72266cb0 RDI: 0000000000000001
[    2.490157] RBP: 00007ffc955de750 R08: 0000000000000000 R09: 0000000000000000
[    2.490203] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    2.490250] R13: 0000000000000004 R14: 000055fd72266cb0 R15: 0000000000000000
| [    2.491581] ------------[ cut here ]------------
| [    2.491621] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: bash/149
| [    2.491683] Modules linked in: netconsole netdevsim
| [    2.491778] Tainted: [W]=WARN
[    2.491799] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.491836] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.491864] 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
[    2.491969] RSP: 0018:ff84a255c03cfb88 EFLAGS: 00010286
[    2.492000] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.492043] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff32fb1e81891800
[    2.492087] RBP: 0000000000000000 R08: ff32fb1e84c4fc50 R09: ff32fb1e86770830
[    2.492136] R10: ff32fb1e8675c118 R11: fefefefefefefeff R12: 0000000000000000
[    2.492183] R13: 0000000000000011 R14: ff32fb1e8675c000 R15: ff32fb1e81891800
[    2.492231] FS:  00007f488efcab80(0000) GS:ff32fb1f1585a000(0000) knlGS:0000000000000000
[    2.492276] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.492312] CR2: 000055fd7225ac68 CR3: 0000000004d4c006 CR4: 0000000000771ef0
[    2.492364] PKRU: 55555554
[    2.492377] Call Trace:
[    2.492392]  <TASK>
[    2.492408]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.492440]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.492470] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.492504] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.494375] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.494417] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    2.494451]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    2.494485]  bus_remove_device (drivers/base/bus.c:657)
[    2.494526]  ? device_remove_attrs (drivers/base/core.c:2844 drivers/base/core.c:2977)
[    2.494561]  device_del (drivers/base/core.c:3895)
[    2.494585]  device_unregister (drivers/base/core.c:3936)
[    2.494608] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    2.494642]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.494671]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.494698]  ksys_write (fs/read_write.c:740)
[    2.494721]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.494747]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.494780] RIP: 0033:0x7f488f03c08e
[    2.494807] 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
[    2.494916] RSP: 002b:00007ffc955de740 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.494962] RAX: ffffffffffffffda RBX: 00007f488f1be580 RCX: 00007f488f03c08e
[    2.495006] RDX: 0000000000000004 RSI: 000055fd72266cb0 RDI: 0000000000000001
[    2.495051] RBP: 00007ffc955de750 R08: 0000000000000000 R09: 0000000000000000
[    2.495105] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    2.495155] R13: 0000000000000004 R14: 000055fd72266cb0 R15: 0000000000000000
| [    2.527893] ------------[ cut here ]------------
| [    2.527940] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: bash/149
| [    2.528004] Modules linked in: netconsole netdevsim
| [    2.528106] Tainted: [W]=WARN
[    2.528132] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.528170] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.528203] 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
[    2.528303] RSP: 0018:ff84a255c03cfb18 EFLAGS: 00010286
[    2.528343] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[    2.529914] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff32fb1e830d7900
[    2.529960] RBP: 0000000000000000 R08: ff32fb1e833b9410 R09: ff32fb1e86767030
[    2.530007] R10: ff32fb1e86758118 R11: fefefefefefefeff R12: 0000000000000000
[    2.530053] R13: 0000000000000010 R14: ff32fb1e86758000 R15: ff32fb1e830d7900
[    2.530103] FS:  00007f488efcab80(0000) GS:ff32fb1f1585a000(0000) knlGS:0000000000000000
[    2.530148] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.530186] CR2: 000055fd7225ac68 CR3: 0000000004d4c006 CR4: 0000000000771ef0
[    2.530231] PKRU: 55555554
[    2.530246] Call Trace:
[    2.530264]  <TASK>
[    2.530281]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.530305]  netif_close_many (net/core/dev.c:1804)
[    2.530332]  unregister_netdevice_many_notify (net/core/dev.c:12330 net/core/dev.c:12400)
[    2.530369]  ? __destroy_inode (fs/inode.c:371)
[    2.530399]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.530431] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.530467] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.530501] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.530539] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    2.530571]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    2.530604]  bus_remove_device (drivers/base/bus.c:657)
[    2.530625]  ? device_remove_attrs (drivers/base/core.c:2844 drivers/base/core.c:2977)
[    2.530658]  device_del (drivers/base/core.c:3895)
[    2.530682]  device_unregister (drivers/base/core.c:3936)
[    2.530704] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    2.530737]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.530770]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.530794]  ksys_write (fs/read_write.c:740)
[    2.530817]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.530845]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.530879] RIP: 0033:0x7f488f03c08e
[    2.530901] 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
[    2.531002] RSP: 002b:00007ffc955de840 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.531045] RAX: ffffffffffffffda RBX: 00007f488f1be580 RCX: 00007f488f03c08e
[    2.531088] RDX: 0000000000000004 RSI: 000055fd72266cb0 RDI: 0000000000000001
[    2.531135] RBP: 00007ffc955de850 R08: 0000000000000000 R09: 0000000000000000
[    2.531181] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    2.531224] R13: 0000000000000004 R14: 000055fd72266cb0 R15: 0000000000000000
| [    2.531462] ------------[ cut here ]------------
| [    2.531491] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: bash/149
| [    2.531553] Modules linked in: netconsole netdevsim
| [    2.531650] Tainted: [W]=WARN
[    2.531675] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.531712] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.531749] 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
[    2.531853] RSP: 0018:ff84a255c03cfb88 EFLAGS: 00010286
[    2.531883] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.531927] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff32fb1e830d7900
[    2.531973] RBP: 0000000000000000 R08: ff32fb1e833b9410 R09: ff32fb1e86754830
[    2.532017] R10: ff32fb1e86758118 R11: fefefefefefefeff R12: 0000000000000000
[    2.532061] R13: 0000000000000011 R14: ff32fb1e86758000 R15: ff32fb1e830d7900
[    2.532108] FS:  00007f488efcab80(0000) GS:ff32fb1f1585a000(0000) knlGS:0000000000000000
[    2.532161] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.532199] CR2: 000055fd7225ac68 CR3: 0000000004d4c006 CR4: 0000000000771ef0
[    2.532244] PKRU: 55555554
[    2.532259] Call Trace:
[    2.532274]  <TASK>
[    2.532290]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.532321]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[    2.532355] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    2.532389] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    2.532420] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    2.532453] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    2.532487]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    2.532517]  bus_remove_device (drivers/base/bus.c:657)
[    2.532544]  ? device_remove_attrs (drivers/base/core.c:2844 drivers/base/core.c:2977)
[    2.532577]  device_del (drivers/base/core.c:3895)
[    2.532602]  device_unregister (drivers/base/core.c:3936)
[    2.532625] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    2.532657]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    2.532683]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    2.532708]  ksys_write (fs/read_write.c:740)
[    2.532731]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.532754]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.532787] RIP: 0033:0x7f488f03c08e
[    2.532811] 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
[    2.532916] RSP: 002b:00007ffc955de840 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.532958] RAX: ffffffffffffffda RBX: 00007f488f1be580 RCX: 00007f488f03c08e
[    2.533002] RDX: 0000000000000004 RSI: 000055fd72266cb0 RDI: 0000000000000001
[    2.533047] RBP: 00007ffc955de850 R08: 0000000000000000 R09: 0000000000000000
[    2.533094] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    2.533142] R13: 0000000000000004 R14: 000055fd72266cb0 R15: 0000000000000000
| [    2.580603] ------------[ cut here ]------------
| [    2.580692] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: 1/65
| [    2.580769] Modules linked in: netconsole netdevsim
| [    2.580864] Tainted: [W]=WARN
[    2.580886] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.580926] Workqueue: netns cleanup_net
[    2.580949] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.580981] 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
[    2.581085] RSP: 0018:ff84a255c023fc08 EFLAGS: 00010286
[    2.581115] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[    2.581159] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff32fb1e830d7800
[    2.581203] RBP: 0000000000000000 R08: ff32fb1e818e8410 R09: ff32fb1e81f8f02c
[    2.581250] R10: ff32fb1e86762118 R11: fefefefefefefeff R12: 0000000000000000
[    2.581295] R13: 0000000000000010 R14: ff32fb1e86762000 R15: ff32fb1e830d7800
[    2.581352] FS:  0000000000000000(0000) GS:ff32fb1f158da000(0000) knlGS:0000000000000000
[    2.581399] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.581434] CR2: 000055fd7220b6b8 CR3: 0000000039642003 CR4: 0000000000771ef0
[    2.581480] PKRU: 55555554
[    2.581493] Call Trace:
[    2.581514]  <TASK>
[    2.581532]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.581555]  netif_close_many (net/core/dev.c:1804)
[    2.581576]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[    2.581608]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    2.581637]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    2.581659]  cleanup_net (net/core/net_namespace.c:702)
[    2.581683]  process_one_work (kernel/workqueue.c:3314)
[    2.581710]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.581729]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.581753]  kthread (kernel/kthread.c:436)
[    2.581779]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.581806]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.581832]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.581856]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    2.582053] ------------[ cut here ]------------
| [    2.582092] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: 1/65
| [    2.582158] Modules linked in: netconsole netdevsim
| [    2.582256] Tainted: [W]=WARN
[    2.582278] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.582317] Workqueue: netns cleanup_net
[    2.582346] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.582377] 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
[    2.582481] RSP: 0018:ff84a255c023fc78 EFLAGS: 00010286
[    2.582518] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.582562] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff32fb1e830d7800
[    2.582609] RBP: 0000000000000000 R08: ff32fb1e818e8410 R09: ff32fb1e819ce82c
[    2.582654] R10: ff32fb1e86762118 R11: fefefefefefefeff R12: 0000000000000000
[    2.582693] R13: 0000000000000011 R14: ff32fb1e86762000 R15: ff32fb1e830d7800
[    2.582741] FS:  0000000000000000(0000) GS:ff32fb1f158da000(0000) knlGS:0000000000000000
[    2.582790] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.582818] CR2: 000055fd7220b6b8 CR3: 0000000039642003 CR4: 0000000000771ef0
[    2.582870] PKRU: 55555554
[    2.582885] Call Trace:
[    2.582901]  <TASK>
[    2.582917]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    2.582948]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    2.582979]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    2.583007]  cleanup_net (net/core/net_namespace.c:702)
[    2.583030]  process_one_work (kernel/workqueue.c:3314)
[    2.583054]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    2.583075]  ? rescuer_thread (kernel/workqueue.c:3672)
[    2.583099]  kthread (kernel/kthread.c:436)
[    2.583120]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    2.583143]  ret_from_fork (arch/x86/kernel/process.c:158)
[    2.583169]  ? 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