======================================
| xx__-> [    3.359547] ------------[ cut here ]------------
| [    3.359633] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/255
| [    3.359722] Modules linked in: netdevsim psample
| [    3.359876] Tainted: [W]=WARN
[    3.359929] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.359996] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.360058] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.360190] RSP: 0018:ff60b5ce80263cb8 EFLAGS: 00010286
[    3.360252] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    3.360333] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043289700
[    3.360406] RBP: 0000000000000000 R08: ff198b2044c54190 R09: ff198b2044e9d02c
[    3.360481] R10: ff198b2044e98120 R11: fefefefefefefeff R12: 0000000000000000
[    3.360555] R13: 0000000000000010 R14: ff198b2044e98000 R15: ff198b2043289700
[    3.360640] FS:  00007fc7f061d840(0000) GS:ff198b20bfb48000(0000) knlGS:0000000000000000
[    3.360718] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.360786] CR2: 00007fc7f081ec20 CR3: 000000000bbaf006 CR4: 0000000000771ef0
[    3.360862] PKRU: 55555554
[    3.360908] Call Trace:
[    3.360956]  <TASK>
[    3.361003]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.361059]  register_netdevice (net/core/dev.c:11488)
[    3.361115]  register_netdev (net/core/dev.c:11552)
[    3.361170]  loopback_net_init (drivers/net/loopback.c:218)
[    3.361227]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    3.361297]  ops_init (net/core/net_namespace.c:137)
[    3.361354]  setup_net (net/core/net_namespace.c:446)
[    3.361409]  copy_net_ns (net/core/net_namespace.c:579)
[    3.361464]  create_new_namespaces (kernel/nsproxy.c:132)
[    3.361529]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    3.361598]  ksys_unshare (kernel/fork.c:3243)
[    3.361655]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    3.361709]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.361765]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.361828] RIP: 0033:0x7fc7f08dfbcb
[    3.361883] 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
[    3.362011] RSP: 002b:00007fffcb4ac088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    3.362086] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fc7f08dfbcb
[    3.362161] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    3.362235] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    3.362312] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcb4ae2b0
[    3.362387] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffcb4ae8c2
| [    3.362632] ------------[ cut here ]------------
| [    3.362694] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/255
| [    3.362778] Modules linked in: netdevsim psample
| [    3.362930] Tainted: [W]=WARN
[    3.362983] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.363050] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.363112] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.363241] RSP: 0018:ff60b5ce80263c10 EFLAGS: 00010286
[    3.363309] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    3.363383] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042feb800
[    3.363456] RBP: 0000000000000000 R08: ff198b2041951f10 R09: ff198b2044eb7030
[    3.363530] R10: ff198b2044e9d120 R11: fefefefefefefeff R12: 0000000000000000
[    3.363609] R13: 0000000000000010 R14: ff198b2044e9d000 R15: ff198b2042feb800
[    3.363688] FS:  00007fc7f061d840(0000) GS:ff198b20bfb48000(0000) knlGS:0000000000000000
[    3.363763] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.363830] CR2: 00007fc7f081ec20 CR3: 000000000bbaf006 CR4: 0000000000771ef0
[    3.363907] PKRU: 55555554
[    3.363953] Call Trace:
[    3.363999]  <TASK>
[    3.364046]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.364100]  register_netdevice (net/core/dev.c:11488)
[    3.364155]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    3.364212]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    3.364267]  ? __kmalloc_noprof (mm/slub.c:4572 mm/slub.c:4898 mm/slub.c:5294 mm/slub.c:5307)
[    3.364328]  ops_init (net/core/net_namespace.c:137)
[    3.364383]  setup_net (net/core/net_namespace.c:446)
[    3.364438]  copy_net_ns (net/core/net_namespace.c:579)
[    3.364493]  create_new_namespaces (kernel/nsproxy.c:132)
[    3.364555]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    3.364622]  ksys_unshare (kernel/fork.c:3243)
[    3.364677]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    3.364731]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.364787]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.364849] RIP: 0033:0x7fc7f08dfbcb
[    3.364903] 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
[    3.365033] RSP: 002b:00007fffcb4ac088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    3.365108] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fc7f08dfbcb
[    3.365181] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    3.365255] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    3.365332] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcb4ae2b0
[    3.365407] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffcb4ae8c2
| [    3.365646] ------------[ cut here ]------------
| [    3.365707] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/255
| [    3.365791] Modules linked in: netdevsim psample
| [    3.365944] Tainted: [W]=WARN
[    3.365997] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.366064] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.366125] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.366258] RSP: 0018:ff60b5ce80263bf0 EFLAGS: 00010286
[    3.366326] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    3.366399] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe4500
[    3.366473] RBP: 0000000000000000 R08: ff198b2041951d10 R09: ff198b2044eb3830
[    3.366546] R10: ff198b2044eaa120 R11: fefefefefefefeff R12: 0000000000000000
[    3.366628] R13: 0000000000000010 R14: ff198b2044eaa000 R15: ff198b2042fe4500
[    3.366705] FS:  00007fc7f061d840(0000) GS:ff198b20bfb48000(0000) knlGS:0000000000000000
[    3.366782] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.366848] CR2: 00007fc7f081ec20 CR3: 000000000bbaf006 CR4: 0000000000771ef0
[    3.366924] PKRU: 55555554
[    3.366969] Call Trace:
[    3.367015]  <TASK>
[    3.367062]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.367117]  register_netdevice (net/core/dev.c:11488)
[    3.367171]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    3.367225]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    3.367287]  vti_init_net (net/ipv4/ip_vti.c:517)
[    3.367341]  ops_init (net/core/net_namespace.c:137)
[    3.367396]  setup_net (net/core/net_namespace.c:446)
[    3.367451]  copy_net_ns (net/core/net_namespace.c:579)
[    3.367505]  create_new_namespaces (kernel/nsproxy.c:132)
[    3.367566]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    3.367634]  ksys_unshare (kernel/fork.c:3243)
[    3.367688]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    3.367743]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.367798]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.367860] RIP: 0033:0x7fc7f08dfbcb
[    3.367914] 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
[    3.368038] RSP: 002b:00007fffcb4ac088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    3.368111] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fc7f08dfbcb
[    3.368183] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    3.368256] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    3.368332] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcb4ae2b0
[    3.368404] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffcb4ae8c2
| [    3.368673] ------------[ cut here ]------------
| [    3.368736] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/255
| [    3.368817] Modules linked in: netdevsim psample
| [    3.368966] Tainted: [W]=WARN
[    3.369019] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.369085] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.369146] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.369269] RSP: 0018:ff60b5ce80263ca8 EFLAGS: 00010286
[    3.369334] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    3.369408] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b204189c700
[    3.369482] RBP: 0000000000000000 R08: ff198b2041951ed0 R09: ff198b2044ea9034
[    3.369554] R10: ff198b2042f04120 R11: fefefefefefefeff R12: 0000000000000000
[    3.369635] R13: 0000000000000010 R14: ff198b2042f04000 R15: ff198b204189c700
[    3.369711] FS:  00007fc7f061d840(0000) GS:ff198b20bfb48000(0000) knlGS:0000000000000000
[    3.369785] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.369851] CR2: 00007fc7f081ec20 CR3: 000000000bbaf006 CR4: 0000000000771ef0
[    3.369926] PKRU: 55555554
[    3.369972] Call Trace:
[    3.370018]  <TASK>
[    3.370064]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.370119]  register_netdevice (net/core/dev.c:11488)
[    3.370173]  register_netdev (net/core/dev.c:11552)
[    3.370227]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[    3.370290]  ops_init (net/core/net_namespace.c:137)
[    3.370345]  setup_net (net/core/net_namespace.c:446)
[    3.370400]  copy_net_ns (net/core/net_namespace.c:579)
[    3.370455]  create_new_namespaces (kernel/nsproxy.c:132)
[    3.370516]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    3.370578]  ksys_unshare (kernel/fork.c:3243)
[    3.370638]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    3.370692]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.370747]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.370807] RIP: 0033:0x7fc7f08dfbcb
[    3.370862] 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
[    3.370989] RSP: 002b:00007fffcb4ac088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    3.371064] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fc7f08dfbcb
[    3.371137] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    3.371210] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    3.371288] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcb4ae2b0
[    3.371362] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffcb4ae8c2
| [    3.371605] ------------[ cut here ]------------
| [    3.371666] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/255
| [    3.371748] Modules linked in: netdevsim psample
| [    3.371897] Tainted: [W]=WARN
[    3.371950] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.372016] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.372077] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.372207] RSP: 0018:ff60b5ce80263ca0 EFLAGS: 00010286
[    3.372268] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    3.372348] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe4200
[    3.372421] RBP: 0000000000000000 R08: ff198b2044cc5ed0 R09: ff198b2041180030
[    3.372494] R10: ff198b2044ea9120 R11: fefefefefefefeff R12: 0000000000000000
[    3.372567] R13: 0000000000000010 R14: ff198b2044ea9000 R15: ff198b2042fe4200
[    3.372651] FS:  00007fc7f061d840(0000) GS:ff198b20bfb48000(0000) knlGS:0000000000000000
[    3.372726] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.372791] CR2: 00007fc7f081ec20 CR3: 000000000bbaf006 CR4: 0000000000771ef0
[    3.372865] PKRU: 55555554
[    3.372910] Call Trace:
[    3.372956]  <TASK>
[    3.373002]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.373055]  register_netdevice (net/core/dev.c:11488)
[    3.373108]  register_netdev (net/core/dev.c:11552)
[    3.373163]  sit_init_net (net/ipv6/sit.c:1860)
[    3.373218]  ? vti6_init_net (net/ipv6/ip6_vti.c:1173)
[    3.373273]  ops_init (net/core/net_namespace.c:137)
[    3.373332]  setup_net (net/core/net_namespace.c:446)
[    3.373387]  copy_net_ns (net/core/net_namespace.c:579)
[    3.373442]  create_new_namespaces (kernel/nsproxy.c:132)
[    3.373503]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    3.373564]  ksys_unshare (kernel/fork.c:3243)
[    3.373621]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    3.373674]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.373729]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.373790] RIP: 0033:0x7fc7f08dfbcb
[    3.373843] 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
[    3.373972] RSP: 002b:00007fffcb4ac088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    3.374045] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fc7f08dfbcb
[    3.374118] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    3.374192] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    3.374266] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcb4ae2b0
[    3.374346] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffcb4ae8c2
| [    3.374623] ------------[ cut here ]------------
| [    3.374683] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/255
| [    3.374763] Modules linked in: netdevsim psample
| [    3.374912] Tainted: [W]=WARN
[    3.374964] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.375030] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.375090] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.375215] RSP: 0018:ff60b5ce80263ca8 EFLAGS: 00010286
[    3.375274] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    3.375355] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2041dfad00
[    3.375428] RBP: 0000000000000000 R08: ff198b204194ac50 R09: ff198b2044ec5030
[    3.375501] R10: ff198b2041180120 R11: fefefefefefefeff R12: 0000000000000000
[    3.375575] R13: 0000000000000010 R14: ff198b2041180000 R15: ff198b2041dfad00
[    3.375656] FS:  00007fc7f061d840(0000) GS:ff198b20bfb48000(0000) knlGS:0000000000000000
[    3.375731] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.375797] CR2: 00007fc7f081ec20 CR3: 000000000bbaf006 CR4: 0000000000771ef0
[    3.375871] PKRU: 55555554
[    3.375917] Call Trace:
[    3.375963]  <TASK>
[    3.376009]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.376064]  register_netdevice (net/core/dev.c:11488)
[    3.376118]  register_netdev (net/core/dev.c:11552)
[    3.376172]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[    3.376227]  ops_init (net/core/net_namespace.c:137)
[    3.376289]  setup_net (net/core/net_namespace.c:446)
[    3.376344]  copy_net_ns (net/core/net_namespace.c:579)
[    3.376400]  create_new_namespaces (kernel/nsproxy.c:132)
[    3.376461]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    3.376522]  ksys_unshare (kernel/fork.c:3243)
[    3.376577]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    3.376637]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.376693]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.376753] RIP: 0033:0x7fc7f08dfbcb
[    3.376807] 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
[    3.376934] RSP: 002b:00007fffcb4ac088 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    3.377008] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fc7f08dfbcb
[    3.377082] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    3.377156] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    3.377229] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcb4ae2b0
[    3.377311] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffcb4ae8c2
| [    3.387439] ------------[ cut here ]------------
| [    3.387478] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: ip/258
| [    3.387534] Modules linked in: netdevsim psample
| [    3.387624] Tainted: [W]=WARN
[    3.387646] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.387682] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.387706] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.387806] RSP: 0018:ff60b5ce8050b720 EFLAGS: 00010286
[    3.387833] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    3.387866] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe8f00
[    3.387907] RBP: 0000000000000000 R08: ff198b2044c54190 R09: ff198b2041c2002c
[    3.387950] R10: ff198b2044e98120 R11: fefefefefefefeff R12: 0000000000000000
[    3.387992] R13: 0000000000000010 R14: ff198b2044e98000 R15: ff198b2042fe8f00
[    3.388039] FS:  00007f05c906f840(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    3.388083] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.388117] CR2: 0000000014b45988 CR3: 00000000065f7003 CR4: 0000000000771ef0
[    3.388157] PKRU: 55555554
[    3.388171] Call Trace:
[    3.388186]  <TASK>
[    3.388201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.388221]  __dev_notify_flags (net/core/dev.c:9787)
[    3.388245]  ? rtnl_getlink (./include/linux/skbuff.h:1323 ./include/linux/skbuff.h:1332 net/core/rtnetlink.c:4288)
[    3.388267]  netif_change_flags (net/core/dev.c:9820)
[    3.388292]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    3.388316]  ? __nla_validate_parse (lib/nlattr.c:620)
[    3.388347]  rtnl_newlink (net/core/rtnetlink.c:3840 (discriminator 1) net/core/rtnetlink.c:4013 (discriminator 1) net/core/rtnetlink.c:4150 (discriminator 1))
[    3.388370]  ? kmalloc_reserve (net/core/skbuff.c:613 (discriminator 7))
[    3.388394]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    3.388418]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    3.388442]  ? netlink_unicast (net/netlink/af_netlink.c:1270 net/netlink/af_netlink.c:1360)
[    3.388464]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    3.388495]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    3.388517]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    3.388540]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    3.388561]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    3.388588]  ___sys_sendmsg (net/socket.c:2752)
[    3.388610]  __sys_sendmsg (net/socket.c:2784)
[    3.388629]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.388653]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.388682] RIP: 0033:0x7f05c92a908e
[    3.388704] 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
[    3.388798] RSP: 002b:00007ffcb21dedc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    3.388839] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f05c92a908e
[    3.388881] RDX: 0000000000000000 RSI: 00007ffcb21dee70 RDI: 0000000000000003
[    3.388921] RBP: 00007ffcb21dedd0 R08: 0000000000000000 R09: 0000000000000000
[    3.388962] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ec95
[    3.389005] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcb21df540
| [    3.392332] ------------[ cut here ]------------
| [    3.392369] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/254
| [    3.392409] Modules linked in: netdevsim psample
| [    3.392501] Tainted: [W]=WARN
[    3.392525] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.392567] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.392601] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.392701] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    3.392734] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    3.392774] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe8b00
[    3.392821] RBP: 0000000000000000 R08: ff198b2044ca5d90 R09: ff198b204307f030
[    3.392862] R10: ff198b2042f08120 R11: fefefefefefefeff R12: 0000000000000000
[    3.392903] R13: 0000000000000010 R14: ff198b2042f08000 R15: ff198b2042fe8b00
[    3.392943] FS:  00007f194feca400(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    3.392987] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.393022] CR2: 00007f194f3f5020 CR3: 00000000064db002 CR4: 0000000000771ef0
[    3.393061] PKRU: 55555554
[    3.393075] Call Trace:
[    3.393089]  <TASK>
[    3.393104]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.393126]  register_netdevice (net/core/dev.c:11488)
[    3.393147] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    3.393181] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    3.393210] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    3.393239]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    3.393269]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    3.393301]  __driver_probe_device (drivers/base/dd.c:871)
[    3.393337]  driver_probe_device (drivers/base/dd.c:901)
[    3.393357]  __device_attach_driver (drivers/base/dd.c:1029)
[    3.393383]  bus_for_each_drv (drivers/base/bus.c:500)
[    3.393408]  __device_attach (drivers/base/dd.c:1101)
[    3.393430]  device_initial_probe (drivers/base/dd.c:1156)
[    3.393451]  bus_probe_device (drivers/base/bus.c:613)
[    3.393474]  device_add (drivers/base/core.c:3706)
[    3.393496] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    3.393520]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    3.393548]  ? rcu_core (kernel/rcu/tree.c:2871)
[    3.393574]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    3.393601]  ksys_write (fs/read_write.c:740)
[    3.393625]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.393646]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.393678] RIP: 0033:0x7f195005208e
[    3.393700] 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
[    3.393793] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    3.393832] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    3.393872] RDX: 0000000000000009 RSI: 00005555dbb99f80 RDI: 0000000000000006
[    3.393913] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    3.393952] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    3.393990] R13: 00005555dbb99f80 R14: 0000000000000006 R15: 00007f194fe590d0
| [    3.540189] ------------[ cut here ]------------
| [    3.540249] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/254
| [    3.540312] Modules linked in: netdevsim psample
| [    3.540407] Tainted: [W]=WARN
[    3.540430] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.540465] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.540495] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.540602] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    3.540635] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    3.540680] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe8e00
[    3.540721] RBP: 0000000000000000 R08: ff198b2041932750 R09: ff198b204307d030
[    3.540768] R10: ff198b2042f0c120 R11: fefefefefefefeff R12: 0000000000000000
[    3.540810] R13: 0000000000000010 R14: ff198b2042f0c000 R15: ff198b2042fe8e00
[    3.540857] FS:  00007f194feca400(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    3.540901] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.540936] CR2: 00007f19502b09be CR3: 00000000064db002 CR4: 0000000000771ef0
[    3.540983] PKRU: 55555554
[    3.540996] Call Trace:
[    3.541008]  <TASK>
[    3.541022]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.541043]  register_netdevice (net/core/dev.c:11488)
[    3.541061] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    3.541097] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    3.541130] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    3.541159]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    3.541183]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    3.541208]  __driver_probe_device (drivers/base/dd.c:871)
[    3.541240]  driver_probe_device (drivers/base/dd.c:901)
[    3.541262]  __device_attach_driver (drivers/base/dd.c:1029)
[    3.541292]  bus_for_each_drv (drivers/base/bus.c:500)
[    3.541317]  __device_attach (drivers/base/dd.c:1101)
[    3.541340]  device_initial_probe (drivers/base/dd.c:1156)
[    3.541362]  bus_probe_device (drivers/base/bus.c:613)
[    3.541385]  device_add (drivers/base/core.c:3706)
[    3.541408] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    3.541442]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    3.541472]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    3.541495]  ksys_write (fs/read_write.c:740)
[    3.541516]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.541538]  ? irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735 kernel/softirq.c:752)
[    3.541559]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.541594] RIP: 0033:0x7f195005208e
[    3.541616] 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
[    3.541711] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    3.541751] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f195005208e
[    3.541794] RDX: 0000000000000008 RSI: 00005555dbb99f80 RDI: 0000000000000006
[    3.541835] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    3.541877] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    3.541921] R13: 00005555dbb99f80 R14: 0000000000000006 R15: 00007f194fe590d0
| [    3.743063] ------------[ cut here ]------------
| [    3.743127] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/254
| [    3.743189] Modules linked in: netdevsim psample
| [    3.743287] Tainted: [W]=WARN
[    3.743314] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.743349] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.743383] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.743474] RSP: 0018:ff60b5ce8041f6b0 EFLAGS: 00010286
[    3.743501] RAX: 00000000ffffffa6 RBX: 0000000000000080 RCX: 0000000000000000
[    3.743545] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043288900
[    3.743588] RBP: 0000000000000000 R08: ff198b2044d19510 R09: ff198b2044f5b02c
[    3.743624] R10: ff198b2044f56120 R11: fefefefefefefeff R12: 0000000000000000
[    3.743667] R13: 0000000000000010 R14: ff198b2044f56000 R15: ff198b2043288900
[    3.743706] FS:  00007f194feca400(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    3.743744] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.743781] CR2: 00007f194f66e0b0 CR3: 00000000064db002 CR4: 0000000000771ef0
[    3.743828] PKRU: 55555554
[    3.743845] Call Trace:
[    3.743864]  <TASK>
[    3.743879]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.743905]  __dev_notify_flags (net/core/dev.c:9787)
[    3.743926]  netif_change_flags (net/core/dev.c:9820)
[    3.743946]  dev_change_flags (net/core/dev_api.c:68)
[    3.743972]  netkit_new_link (drivers/net/netkit.c:631)
[    3.743999]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    3.744021]  ? __rmqueue_pcplist (./include/linux/spinlock.h:408 (discriminator 3) mm/page_alloc.c:2548 (discriminator 3) mm/page_alloc.c:3334 (discriminator 3))
[    3.744049]  ? get_page_from_freelist (mm/page_alloc.c:1856 mm/page_alloc.c:1866 mm/page_alloc.c:3946)
[    3.744075]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    3.744105]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    3.744125]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    3.744149]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    3.744172]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    3.744198]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    3.744219]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    3.744245]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    3.744264]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.744286]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.744314] RIP: 0033:0x7f195005208e
[    3.744346] 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
[    3.744449] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    3.744493] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    3.744539] RDX: 0000000000000054 RSI: 00007f194f26b450 RDI: 0000000000000006
[    3.744588] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    3.744632] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f42bcb0
[    3.744680] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    3.744782] ------------[ cut here ]------------
| [    3.744812] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/254
| [    3.744868] Modules linked in: netdevsim psample
| [    3.744956] Tainted: [W]=WARN
[    3.744981] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.745023] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.745054] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.745154] RSP: 0018:ff60b5ce8041f6e0 EFLAGS: 00010286
[    3.745186] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    3.745230] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043288900
[    3.745278] RBP: 0000000000000000 R08: ff198b2044d19510 R09: ff198b2044f5b02c
[    3.745321] R10: ff198b2044f56120 R11: fefefefefefefeff R12: 0000000000000000
[    3.745365] R13: 0000000000000010 R14: ff198b2044f56000 R15: ff198b2043288900
[    3.745408] FS:  00007f194feca400(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    3.745451] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.745487] CR2: 00007f194f66e0b0 CR3: 00000000064db002 CR4: 0000000000771ef0
[    3.745527] PKRU: 55555554
[    3.745541] Call Trace:
[    3.745555]  <TASK>
[    3.745570]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.745595]  __dev_notify_flags (net/core/dev.c:9787)
[    3.745613]  ? netif_change_flags (net/core/dev.c:9820)
[    3.745635]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    3.745657]  netkit_new_link (drivers/net/netkit.c:633)
[    3.745681]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    3.745703]  ? __rmqueue_pcplist (./include/linux/spinlock.h:408 (discriminator 3) mm/page_alloc.c:2548 (discriminator 3) mm/page_alloc.c:3334 (discriminator 3))
[    3.745726]  ? get_page_from_freelist (mm/page_alloc.c:1856 mm/page_alloc.c:1866 mm/page_alloc.c:3946)
[    3.745754]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    3.745783]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    3.745804]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    3.745830]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    3.745853]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    3.745873]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    3.745895]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    3.745917]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    3.745937]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.745959]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.745989] RIP: 0033:0x7f195005208e
[    3.746011] 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
[    3.746109] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    3.746150] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    3.746192] RDX: 0000000000000054 RSI: 00007f194f26b450 RDI: 0000000000000006
[    3.746234] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    3.746276] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f42bcb0
[    3.746319] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    3.746470] ------------[ cut here ]------------
| [    3.746498] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/254
| [    3.746550] Modules linked in: netdevsim psample
| [    3.746644] Tainted: [W]=WARN
[    3.746666] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.746698] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.746728] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.746821] RSP: 0018:ff60b5ce8041f6b0 EFLAGS: 00010286
[    3.746849] RAX: 00000000ffffffa6 RBX: 0000000000000080 RCX: 0000000000000000
[    3.746893] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042feb200
[    3.746934] RBP: 0000000000000000 R08: ff198b2044cbfa50 R09: ff198b2044f5902c
[    3.746982] R10: ff198b20419a0120 R11: fefefefefefefeff R12: 0000000000000000
[    3.747021] R13: 0000000000000010 R14: ff198b20419a0000 R15: ff198b2042feb200
[    3.747064] FS:  00007f194feca400(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    3.747111] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.747148] CR2: 00007f194f66e0b0 CR3: 00000000064db002 CR4: 0000000000771ef0
[    3.747192] PKRU: 55555554
[    3.747208] Call Trace:
[    3.747223]  <TASK>
[    3.747236]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.747260]  __dev_notify_flags (net/core/dev.c:9787)
[    3.747285]  ? notifier_call_chain (kernel/notifier.c:85)
[    3.747318]  netif_change_flags (net/core/dev.c:9820)
[    3.747341]  dev_change_flags (net/core/dev_api.c:68)
[    3.747362]  netkit_new_link (drivers/net/netkit.c:666)
[    3.747385]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    3.747407]  ? __rmqueue_pcplist (./include/linux/spinlock.h:408 (discriminator 3) mm/page_alloc.c:2548 (discriminator 3) mm/page_alloc.c:3334 (discriminator 3))
[    3.747436]  ? get_page_from_freelist (mm/page_alloc.c:1856 mm/page_alloc.c:1866 mm/page_alloc.c:3946)
[    3.747463]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    3.747491]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    3.747518]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    3.747544]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    3.747566]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    3.747593]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    3.747617]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    3.747636]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    3.747658]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.747679]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.747703] RIP: 0033:0x7f195005208e
[    3.747724] 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
[    3.747816] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    3.747857] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    3.747900] RDX: 0000000000000054 RSI: 00007f194f26b450 RDI: 0000000000000006
[    3.747941] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    3.747982] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f42bcb0
[    3.748026] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    3.748117] ------------[ cut here ]------------
| [    3.748145] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/254
| [    3.748190] Modules linked in: netdevsim psample
| [    3.748278] Tainted: [W]=WARN
[    3.748301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.748340] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.748368] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.748463] RSP: 0018:ff60b5ce8041f9a0 EFLAGS: 00010286
[    3.748492] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    3.748532] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042feb200
[    3.748574] RBP: 0000000000000000 R08: ff198b2044cbfa50 R09: ff198b2044f5902c
[    3.748616] R10: ff198b20419a0120 R11: fefefefefefefeff R12: 0000000000000000
[    3.748657] R13: 0000000000000010 R14: ff198b20419a0000 R15: ff198b2042feb200
[    3.748700] FS:  00007f194feca400(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    3.748741] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.748776] CR2: 00007f194f66e0b0 CR3: 00000000064db002 CR4: 0000000000771ef0
[    3.748819] PKRU: 55555554
[    3.748834] Call Trace:
[    3.748848]  <TASK>
[    3.748862]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.748884]  __dev_notify_flags (net/core/dev.c:9787)
[    3.748903]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    3.748924]  rtnl_newlink (net/core/rtnetlink.c:3914 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    3.748945]  ? __rmqueue_pcplist (./include/linux/spinlock.h:408 (discriminator 3) mm/page_alloc.c:2548 (discriminator 3) mm/page_alloc.c:3334 (discriminator 3))
[    3.748973]  ? get_page_from_freelist (mm/page_alloc.c:1856 mm/page_alloc.c:1866 mm/page_alloc.c:3946)
[    3.749000]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    3.749028]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    3.749050]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    3.749079]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    3.749101]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    3.749123]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    3.749145]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    3.749167]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    3.749188]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.749209]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.749236] RIP: 0033:0x7f195005208e
[    3.749255] 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
[    3.749349] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    3.749388] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    3.749429] RDX: 0000000000000054 RSI: 00007f194f26b450 RDI: 0000000000000006
[    3.749470] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    3.749512] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f42bcb0
[    3.749550] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    3.753916] ------------[ cut here ]------------
| [    3.753967] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/254
| [    3.754025] Modules linked in: netdevsim psample
| [    3.754119] Tainted: [W]=WARN
[    3.754138] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.754172] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.754198] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.754302] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    3.754329] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    3.754367] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe4800
[    3.754402] RBP: 0000000000000000 R08: ff198b2044d25c50 R09: ff198b2044f5f030
[    3.754441] R10: ff198b2044f54120 R11: fefefefefefefeff R12: 0000000000000000
[    3.754482] R13: 0000000000000010 R14: ff198b2044f54000 R15: ff198b2042fe4800
[    3.754524] FS:  00007f194feca400(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    3.754572] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.754607] CR2: 00007f5767753574 CR3: 00000000064db002 CR4: 0000000000771ef0
[    3.754652] PKRU: 55555554
[    3.754665] Call Trace:
[    3.754682]  <TASK>
[    3.754698]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.754720]  register_netdevice (net/core/dev.c:11488)
[    3.754744] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    3.754778] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    3.754809] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    3.754839]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    3.754864]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    3.754893]  __driver_probe_device (drivers/base/dd.c:871)
[    3.754923]  driver_probe_device (drivers/base/dd.c:901)
[    3.754946]  __device_attach_driver (drivers/base/dd.c:1029)
[    3.754972]  bus_for_each_drv (drivers/base/bus.c:500)
[    3.754996]  __device_attach (drivers/base/dd.c:1101)
[    3.755014]  device_initial_probe (drivers/base/dd.c:1156)
[    3.755035]  bus_probe_device (drivers/base/bus.c:613)
[    3.755052]  device_add (drivers/base/core.c:3706)
[    3.755075] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    3.755107]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    3.755141]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    3.755166]  ksys_write (fs/read_write.c:740)
[    3.755187]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.755207]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.755236] RIP: 0033:0x7f195005208e
[    3.755258] 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
[    3.755356] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    3.755398] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    3.755437] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 0000000000000007
[    3.755475] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    3.755514] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    3.755555] R13: 00005555dbb99fd0 R14: 0000000000000007 R15: 00007f194fe590d0
| [    3.807748] ------------[ cut here ]------------
| [    3.807793] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    3.807858] Modules linked in: netdevsim psample
| [    3.807948] Tainted: [W]=WARN
[    3.807968] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.808003] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.808030] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.808129] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    3.808157] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    3.808196] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe4700
[    3.808237] RBP: 0000000000000000 R08: ff198b204191a450 R09: ff198b2044ea8030
[    3.808278] R10: ff198b20464ec120 R11: fefefefefefefeff R12: 0000000000000000
[    3.808322] R13: 0000000000000010 R14: ff198b20464ec000 R15: ff198b2042fe4700
[    3.808367] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    3.808411] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.808448] CR2: 000055c3507d16c0 CR3: 00000000064db004 CR4: 0000000000771ef0
[    3.808487] PKRU: 55555554
[    3.808502] Call Trace:
[    3.808516]  <TASK>
[    3.808531]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.808554]  register_netdevice (net/core/dev.c:11488)
[    3.808576] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    3.808611] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    3.808643] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    3.808672]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    3.808695]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    3.808724]  __driver_probe_device (drivers/base/dd.c:871)
[    3.808752]  driver_probe_device (drivers/base/dd.c:901)
[    3.808772]  __device_attach_driver (drivers/base/dd.c:1029)
[    3.808799]  bus_for_each_drv (drivers/base/bus.c:500)
[    3.808822]  __device_attach (drivers/base/dd.c:1101)
[    3.808844]  device_initial_probe (drivers/base/dd.c:1156)
[    3.808864]  bus_probe_device (drivers/base/bus.c:613)
[    3.808888]  device_add (drivers/base/core.c:3706)
[    3.808909] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    3.808939]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    3.808967]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    3.808991]  ksys_write (fs/read_write.c:740)
[    3.809011]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.809034]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.809067] RIP: 0033:0x7f195005208e
[    3.809087] 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
[    3.809191] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    3.809233] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    3.809279] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 0000000000000007
[    3.809325] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    3.809370] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    3.809411] R13: 00005555dbb99fd0 R14: 0000000000000007 R15: 00007f194fe590d0
| [    3.940724] ------------[ cut here ]------------
| [    3.940761] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    3.940816] Modules linked in: netdevsim psample
| [    3.940912] Tainted: [W]=WARN
[    3.940932] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.940966] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    3.940988] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    3.941086] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    3.941115] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    3.941162] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043288e00
[    3.941203] RBP: 0000000000000000 R08: ff198b2044ca1fd0 R09: ff198b20464fb030
[    3.941240] R10: ff198b20464ea120 R11: fefefefefefefeff R12: 0000000000000000
[    3.941279] R13: 0000000000000010 R14: ff198b20464ea000 R15: ff198b2043288e00
[    3.941329] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    3.941372] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.941405] CR2: 00007f6cee484574 CR3: 00000000064db001 CR4: 0000000000771ef0
[    3.941447] PKRU: 55555554
[    3.941459] Call Trace:
[    3.941470]  <TASK>
[    3.941487]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    3.941510]  register_netdevice (net/core/dev.c:11488)
[    3.941532] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    3.941564] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    3.941597] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    3.941627]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    3.941651]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    3.941678]  __driver_probe_device (drivers/base/dd.c:871)
[    3.941707]  driver_probe_device (drivers/base/dd.c:901)
[    3.941727]  __device_attach_driver (drivers/base/dd.c:1029)
[    3.941755]  bus_for_each_drv (drivers/base/bus.c:500)
[    3.941776]  __device_attach (drivers/base/dd.c:1101)
[    3.941802]  device_initial_probe (drivers/base/dd.c:1156)
[    3.941823]  bus_probe_device (drivers/base/bus.c:613)
[    3.941846]  device_add (drivers/base/core.c:3706)
[    3.941867] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    3.941896]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    3.941926]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    3.941948]  ksys_write (fs/read_write.c:740)
[    3.941969]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    3.941994]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    3.942025] RIP: 0033:0x7f195005208e
[    3.942046] 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
[    3.942140] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    3.942179] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    3.942221] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 0000000000000007
[    3.942261] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    3.942307] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    3.942349] R13: 00005555dbb99fd0 R14: 0000000000000007 R15: 00007f194fe590d0
| [    4.080010] ------------[ cut here ]------------
| [    4.080062] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    4.080120] Modules linked in: netdevsim psample
| [    4.080209] Tainted: [W]=WARN
[    4.080231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    4.080264] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    4.080301] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    4.080401] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    4.080428] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    4.080470] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe4700
[    4.080505] RBP: 0000000000000000 R08: ff198b2044d29c10 R09: ff198b20464f9030
[    4.080548] R10: ff198b20464e8120 R11: fefefefefefefeff R12: 0000000000000000
[    4.080592] R13: 0000000000000010 R14: ff198b20464e8000 R15: ff198b2042fe4700
[    4.080635] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    4.080680] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.080719] CR2: 00007f8f7e4e78f4 CR3: 00000000064db004 CR4: 0000000000771ef0
[    4.080758] PKRU: 55555554
[    4.080773] Call Trace:
[    4.080788]  <TASK>
[    4.080805]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    4.080825]  register_netdevice (net/core/dev.c:11488)
[    4.080844] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    4.080873] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    4.080902] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    4.080930]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    4.080954]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    4.080980]  __driver_probe_device (drivers/base/dd.c:871)
[    4.081009]  driver_probe_device (drivers/base/dd.c:901)
[    4.081028]  __device_attach_driver (drivers/base/dd.c:1029)
[    4.081056]  bus_for_each_drv (drivers/base/bus.c:500)
[    4.081078]  __device_attach (drivers/base/dd.c:1101)
[    4.081099]  device_initial_probe (drivers/base/dd.c:1156)
[    4.081119]  bus_probe_device (drivers/base/bus.c:613)
[    4.081140]  device_add (drivers/base/core.c:3706)
[    4.081161] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    4.081190]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    4.081217]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    4.081240]  ksys_write (fs/read_write.c:740)
[    4.081258]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    4.081278]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    4.081311] RIP: 0033:0x7f195005208e
[    4.081333] 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
[    4.081427] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    4.081469] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    4.081503] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 0000000000000007
[    4.081546] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    4.081579] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    4.081628] R13: 00005555dbb99fd0 R14: 0000000000000007 R15: 00007f194fe590d0
| [    4.398709] ------------[ cut here ]------------
| [    4.398770] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    4.398838] Modules linked in: netdevsim psample
| [    4.398933] Tainted: [W]=WARN
[    4.398951] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    4.398981] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    4.399011] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    4.399110] RSP: 0018:ff60b5ce8041f6b0 EFLAGS: 00010286
[    4.399135] RAX: 00000000ffffffa6 RBX: 0000000000000080 RCX: 0000000000000000
[    4.399174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043288200
[    4.399215] RBP: 0000000000000000 R08: ff198b2044ca5610 R09: ff198b20464ff02c
[    4.399250] R10: ff198b20465b4120 R11: fefefefefefefeff R12: 0000000000000000
[    4.399295] R13: 0000000000000010 R14: ff198b20465b4000 R15: ff198b2043288200
[    4.399339] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    4.399382] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.399417] CR2: 00007f194f6430e0 CR3: 00000000064db006 CR4: 0000000000771ef0
[    4.399456] PKRU: 55555554
[    4.399468] Call Trace:
[    4.399480]  <TASK>
[    4.399500]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    4.399521]  __dev_notify_flags (net/core/dev.c:9787)
[    4.399545]  netif_change_flags (net/core/dev.c:9820)
[    4.399568]  dev_change_flags (net/core/dev_api.c:68)
[    4.399595]  netkit_new_link (drivers/net/netkit.c:631)
[    4.399622]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    4.399644]  ? xas_load (lib/xarray.c:239)
[    4.399671]  ? filemap_get_read_batch (./include/linux/rcupdate.h:871 mm/filemap.c:2489)
[    4.399703]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    4.399735]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    4.399761]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    4.399792]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    4.399812]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    4.399832]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    4.399855]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    4.399879]  ? __handle_mm_fault (./include/linux/rcupdate.h:871 ./include/linux/pgtable.h:117 mm/memory.c:5433 mm/memory.c:4564 mm/memory.c:6427 mm/memory.c:6565)
[    4.399911]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    4.399934]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    4.399957]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    4.399992] RIP: 0033:0x7f195005208e
[    4.400014] 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
[    4.400107] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    4.400146] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    4.400187] RDX: 0000000000000054 RSI: 00007f194f10c550 RDI: 0000000000000007
[    4.400229] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    4.400270] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f622c80
[    4.400308] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    4.400562] ------------[ cut here ]------------
| [    4.400591] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    4.400643] Modules linked in: netdevsim psample
| [    4.400737] Tainted: [W]=WARN
[    4.400759] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    4.400793] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    4.400826] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    4.400927] RSP: 0018:ff60b5ce8041f6e0 EFLAGS: 00010286
[    4.400957] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    4.401006] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043288200
[    4.401047] RBP: 0000000000000000 R08: ff198b2044ca5610 R09: ff198b20464ff02c
[    4.401095] R10: ff198b20465b4120 R11: fefefefefefefeff R12: 0000000000000000
[    4.401137] R13: 0000000000000010 R14: ff198b20465b4000 R15: ff198b2043288200
[    4.401183] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    4.401228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.401262] CR2: 000055c3507d16c0 CR3: 00000000064db006 CR4: 0000000000771ef0
[    4.401306] PKRU: 55555554
[    4.401321] Call Trace:
[    4.401335]  <TASK>
[    4.401349]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    4.401368]  __dev_notify_flags (net/core/dev.c:9787)
[    4.401389]  ? netif_change_flags (net/core/dev.c:9820)
[    4.401410]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    4.401432]  netkit_new_link (drivers/net/netkit.c:633)
[    4.401456]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    4.401477]  ? xas_load (lib/xarray.c:239)
[    4.401498]  ? filemap_get_read_batch (./include/linux/rcupdate.h:871 mm/filemap.c:2489)
[    4.401525]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    4.401553]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    4.401575]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    4.401607]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    4.401629]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    4.401650]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    4.401672]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    4.401692]  ? __handle_mm_fault (./include/linux/rcupdate.h:871 ./include/linux/pgtable.h:117 mm/memory.c:5433 mm/memory.c:4564 mm/memory.c:6427 mm/memory.c:6565)
[    4.401720]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    4.401740]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    4.401760]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    4.401790] RIP: 0033:0x7f195005208e
[    4.401811] 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
[    4.401902] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    4.401944] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    4.401982] RDX: 0000000000000054 RSI: 00007f194f10c550 RDI: 0000000000000007
[    4.402020] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    4.402059] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f622c80
[    4.402097] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    4.402247] ------------[ cut here ]------------
| [    4.402273] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    4.402324] Modules linked in: netdevsim psample
| [    4.402405] Tainted: [W]=WARN
[    4.402425] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    4.402458] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    4.402485] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    4.402591] RSP: 0018:ff60b5ce8041f6b0 EFLAGS: 00010286
[    4.402621] RAX: 00000000ffffffa6 RBX: 0000000000000080 RCX: 0000000000000000
[    4.402663] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe4000
[    4.402702] RBP: 0000000000000000 R08: ff198b2044ca53d0 R09: ff198b20464fd02c
[    4.402740] R10: ff198b20465b6120 R11: fefefefefefefeff R12: 0000000000000000
[    4.402780] R13: 0000000000000010 R14: ff198b20465b6000 R15: ff198b2042fe4000
[    4.402823] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    4.402862] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.402897] CR2: 000055c3507d16c0 CR3: 00000000064db006 CR4: 0000000000771ef0
[    4.402939] PKRU: 55555554
[    4.402954] Call Trace:
[    4.402966]  <TASK>
[    4.402982]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    4.403004]  __dev_notify_flags (net/core/dev.c:9787)
[    4.403027]  ? notifier_call_chain (kernel/notifier.c:85)
[    4.403059]  netif_change_flags (net/core/dev.c:9820)
[    4.403080]  dev_change_flags (net/core/dev_api.c:68)
[    4.403101]  netkit_new_link (drivers/net/netkit.c:666)
[    4.403122]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    4.403140]  ? xas_load (lib/xarray.c:239)
[    4.403159]  ? filemap_get_read_batch (./include/linux/rcupdate.h:871 mm/filemap.c:2489)
[    4.403185]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    4.403215]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    4.403234]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    4.403261]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    4.403285]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    4.403306]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    4.403328]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    4.403348]  ? __handle_mm_fault (./include/linux/rcupdate.h:871 ./include/linux/pgtable.h:117 mm/memory.c:5433 mm/memory.c:4564 mm/memory.c:6427 mm/memory.c:6565)
[    4.403379]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    4.403400]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    4.403421]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    4.403449] RIP: 0033:0x7f195005208e
[    4.403474] 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
[    4.403571] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    4.403622] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    4.403661] RDX: 0000000000000054 RSI: 00007f194f10c550 RDI: 0000000000000007
[    4.403701] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    4.403743] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f622c80
[    4.403787] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    4.403875] ------------[ cut here ]------------
| [    4.403904] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    4.403952] Modules linked in: netdevsim psample
| [    4.404035] Tainted: [W]=WARN
[    4.404055] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    4.404089] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    4.404118] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    4.404212] RSP: 0018:ff60b5ce8041f9a0 EFLAGS: 00010286
[    4.404241] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    4.404284] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe4000
[    4.404324] RBP: 0000000000000000 R08: ff198b2044ca53d0 R09: ff198b20464fd02c
[    4.404365] R10: ff198b20465b6120 R11: fefefefefefefeff R12: 0000000000000000
[    4.404405] R13: 0000000000000010 R14: ff198b20465b6000 R15: ff198b2042fe4000
[    4.404448] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    4.404495] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.404534] CR2: 000055c3507d16c0 CR3: 00000000064db006 CR4: 0000000000771ef0
[    4.404577] PKRU: 55555554
[    4.404592] Call Trace:
[    4.404606]  <TASK>
[    4.404620]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    4.404641]  __dev_notify_flags (net/core/dev.c:9787)
[    4.404662]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    4.404682]  rtnl_newlink (net/core/rtnetlink.c:3914 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    4.404708]  ? xas_load (lib/xarray.c:239)
[    4.404730]  ? filemap_get_read_batch (./include/linux/rcupdate.h:871 mm/filemap.c:2489)
[    4.404757]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    4.404785]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    4.404805]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    4.404831]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    4.404854]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    4.404875]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    4.404896]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    4.404919]  ? __handle_mm_fault (./include/linux/rcupdate.h:871 ./include/linux/pgtable.h:117 mm/memory.c:5433 mm/memory.c:4564 mm/memory.c:6427 mm/memory.c:6565)
[    4.404946]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    4.404965]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    4.404987]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    4.405014] RIP: 0033:0x7f195005208e
[    4.405035] 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
[    4.405129] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    4.405168] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    4.405210] RDX: 0000000000000054 RSI: 00007f194f10c550 RDI: 0000000000000007
[    4.405251] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    4.405296] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f622c80
[    4.405336] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    4.410094] ------------[ cut here ]------------
| [    4.410131] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    4.410188] Modules linked in: netdevsim psample
| [    4.410271] Tainted: [W]=WARN
[    4.410295] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    4.410332] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    4.410355] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    4.410452] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    4.410479] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    4.410520] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043289200
[    4.410562] RBP: 0000000000000000 R08: ff198b2044c13c50 R09: ff198b204bb83030
[    4.410607] R10: ff198b20465b2120 R11: fefefefefefefeff R12: 0000000000000000
[    4.410653] R13: 0000000000000010 R14: ff198b20465b2000 R15: ff198b2043289200
[    4.410696] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    4.410742] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.410773] CR2: 00007f194f64e010 CR3: 00000000064db006 CR4: 0000000000771ef0
[    4.410812] PKRU: 55555554
[    4.410827] Call Trace:
[    4.410841]  <TASK>
[    4.410857]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    4.410877]  register_netdevice (net/core/dev.c:11488)
[    4.410897] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    4.410929] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    4.410952] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    4.410981]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    4.411004]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    4.411031]  __driver_probe_device (drivers/base/dd.c:871)
[    4.411056]  driver_probe_device (drivers/base/dd.c:901)
[    4.411078]  __device_attach_driver (drivers/base/dd.c:1029)
[    4.411109]  bus_for_each_drv (drivers/base/bus.c:500)
[    4.411130]  __device_attach (drivers/base/dd.c:1101)
[    4.411149]  device_initial_probe (drivers/base/dd.c:1156)
[    4.411171]  bus_probe_device (drivers/base/bus.c:613)
[    4.411196]  device_add (drivers/base/core.c:3706)
[    4.411218] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    4.411248]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    4.411272]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    4.411299]  ksys_write (fs/read_write.c:740)
[    4.411321]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    4.411342]  ? __sysvec_call_function_single (arch/x86/kernel/smp.c:272)
[    4.411377]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    4.411399] RIP: 0033:0x7f195005208e
[    4.411422] 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
[    4.411512] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    4.411554] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    4.411596] RDX: 0000000000000009 RSI: 00005555dbbda920 RDI: 0000000000000008
[    4.411639] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    4.411681] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    4.411720] R13: 00005555dbbda920 R14: 0000000000000008 R15: 00007f194fe590d0
| [    4.462195] ------------[ cut here ]------------
| [    4.462234] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    4.462296] Modules linked in: netdevsim psample
| [    4.462383] Tainted: [W]=WARN
[    4.462406] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    4.462444] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    4.462473] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    4.462571] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    4.462602] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    4.462643] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe4700
[    4.462685] RBP: 0000000000000000 R08: ff198b2044c54a10 R09: ff198b204bb81030
[    4.462729] R10: ff198b20465b0120 R11: fefefefefefefeff R12: 0000000000000000
[    4.462776] R13: 0000000000000010 R14: ff198b20465b0000 R15: ff198b2042fe4700
[    4.462824] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    4.462865] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.462902] CR2: 00007fc5e60ca2a0 CR3: 00000000064db001 CR4: 0000000000771ef0
[    4.462942] PKRU: 55555554
[    4.462956] Call Trace:
[    4.462967]  <TASK>
[    4.462984]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    4.463006]  register_netdevice (net/core/dev.c:11488)
[    4.463029] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    4.463061] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    4.463088] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    4.463117]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    4.463140]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    4.463165]  __driver_probe_device (drivers/base/dd.c:871)
[    4.463193]  driver_probe_device (drivers/base/dd.c:901)
[    4.463214]  __device_attach_driver (drivers/base/dd.c:1029)
[    4.463242]  bus_for_each_drv (drivers/base/bus.c:500)
[    4.463267]  __device_attach (drivers/base/dd.c:1101)
[    4.463291]  device_initial_probe (drivers/base/dd.c:1156)
[    4.463310]  bus_probe_device (drivers/base/bus.c:613)
[    4.463333]  device_add (drivers/base/core.c:3706)
[    4.463354] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    4.463382]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    4.463410]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    4.463433]  ksys_write (fs/read_write.c:740)
[    4.463455]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    4.463475]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    4.463503] RIP: 0033:0x7f195005208e
[    4.463523] 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
[    4.463621] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    4.463659] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f195005208e
[    4.463702] RDX: 0000000000000008 RSI: 00005555dbb99fd0 RDI: 0000000000000008
[    4.463742] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    4.463781] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    4.463821] R13: 00005555dbb99fd0 R14: 0000000000000008 R15: 00007f194fe590d0
| [    4.596747] ------------[ cut here ]------------
| [    4.596794] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    4.596854] Modules linked in: netdevsim psample
| [    4.596941] Tainted: [W]=WARN
[    4.596959] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    4.596996] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    4.597025] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    4.597116] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    4.597146] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    4.597187] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe4000
[    4.597227] RBP: 0000000000000000 R08: ff198b2041932410 R09: ff198b204bb87030
[    4.597267] R10: ff198b20465a6120 R11: fefefefefefefeff R12: 0000000000000000
[    4.597314] R13: 0000000000000010 R14: ff198b20465a6000 R15: ff198b2042fe4000
[    4.597360] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    4.597405] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.597441] CR2: 000055c3507d16c0 CR3: 00000000064db006 CR4: 0000000000771ef0
[    4.597482] PKRU: 55555554
[    4.597497] Call Trace:
[    4.597514]  <TASK>
[    4.597529]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    4.597550]  register_netdevice (net/core/dev.c:11488)
[    4.597572] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    4.597607] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    4.597636] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    4.597666]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    4.597688]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    4.597715]  __driver_probe_device (drivers/base/dd.c:871)
[    4.597743]  driver_probe_device (drivers/base/dd.c:901)
[    4.597764]  __device_attach_driver (drivers/base/dd.c:1029)
[    4.597792]  bus_for_each_drv (drivers/base/bus.c:500)
[    4.597813]  __device_attach (drivers/base/dd.c:1101)
[    4.597835]  device_initial_probe (drivers/base/dd.c:1156)
[    4.597856]  bus_probe_device (drivers/base/bus.c:613)
[    4.597879]  device_add (drivers/base/core.c:3706)
[    4.597900] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    4.597930]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    4.597961]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    4.597983]  ksys_write (fs/read_write.c:740)
[    4.598005]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    4.598027]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    4.598055] RIP: 0033:0x7f195005208e
[    4.598077] 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
[    4.598180] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    4.598223] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f195005208e
[    4.598264] RDX: 0000000000000008 RSI: 00005555dbb99fd0 RDI: 0000000000000008
[    4.598314] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    4.598354] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    4.598393] R13: 00005555dbb99fd0 R14: 0000000000000008 R15: 00007f194fe590d0
| [    4.736539] ------------[ cut here ]------------
| [    4.736581] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    4.736641] Modules linked in: netdevsim psample
| [    4.736732] Tainted: [W]=WARN
[    4.736756] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    4.736790] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    4.736821] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    4.736933] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    4.736963] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    4.737010] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043289200
[    4.737054] RBP: 0000000000000000 R08: ff198b2044c13650 R09: ff198b204bb85030
[    4.737097] R10: ff198b20465a4120 R11: fefefefefefefeff R12: 0000000000000000
[    4.737143] R13: 0000000000000010 R14: ff198b20465a4000 R15: ff198b2043289200
[    4.737193] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    4.737234] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.737270] CR2: 00007fe2d8a648f4 CR3: 00000000064db003 CR4: 0000000000771ef0
[    4.737321] PKRU: 55555554
[    4.737333] Call Trace:
[    4.737351]  <TASK>
[    4.737366]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    4.737386]  register_netdevice (net/core/dev.c:11488)
[    4.737415] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    4.737447] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    4.737477] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    4.737507]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    4.737531]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    4.737556]  __driver_probe_device (drivers/base/dd.c:871)
[    4.737591]  driver_probe_device (drivers/base/dd.c:901)
[    4.737617]  __device_attach_driver (drivers/base/dd.c:1029)
[    4.737648]  bus_for_each_drv (drivers/base/bus.c:500)
[    4.737668]  __device_attach (drivers/base/dd.c:1101)
[    4.737693]  device_initial_probe (drivers/base/dd.c:1156)
[    4.737717]  bus_probe_device (drivers/base/bus.c:613)
[    4.737740]  device_add (drivers/base/core.c:3706)
[    4.737763] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    4.737790]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    4.737819]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    4.737841]  ksys_write (fs/read_write.c:740)
[    4.737860]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    4.737886]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    4.737917] RIP: 0033:0x7f195005208e
[    4.737940] 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
[    4.738049] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    4.738097] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    4.738141] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 0000000000000008
[    4.738186] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    4.738230] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    4.738274] R13: 00005555dbb99fd0 R14: 0000000000000008 R15: 00007f194fe590d0
| [    4.870510] ------------[ cut here ]------------
| [    4.870556] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    4.870612] Modules linked in: netdevsim psample
| [    4.870706] Tainted: [W]=WARN
[    4.870726] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    4.870760] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    4.870786] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    4.870880] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    4.870910] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    4.870953] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043288400
[    4.870997] RBP: 0000000000000000 R08: ff198b2044d25ad0 R09: ff198b204cd13030
[    4.871038] R10: ff198b20465a2120 R11: fefefefefefefeff R12: 0000000000000000
[    4.871080] R13: 0000000000000010 R14: ff198b20465a2000 R15: ff198b2043288400
[    4.871124] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    4.871169] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.871205] CR2: 00007f47a901a2a0 CR3: 00000000064db005 CR4: 0000000000771ef0
[    4.871244] PKRU: 55555554
[    4.871257] Call Trace:
[    4.871275]  <TASK>
[    4.871295]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    4.871322]  register_netdevice (net/core/dev.c:11488)
[    4.871346] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    4.871378] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    4.871407] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    4.871437]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    4.871460]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    4.871488]  __driver_probe_device (drivers/base/dd.c:871)
[    4.871516]  driver_probe_device (drivers/base/dd.c:901)
[    4.871538]  __device_attach_driver (drivers/base/dd.c:1029)
[    4.871568]  bus_for_each_drv (drivers/base/bus.c:500)
[    4.871598]  __device_attach (drivers/base/dd.c:1101)
[    4.871620]  device_initial_probe (drivers/base/dd.c:1156)
[    4.871642]  bus_probe_device (drivers/base/bus.c:613)
[    4.871665]  device_add (drivers/base/core.c:3706)
[    4.871687] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    4.871716]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    4.871750]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    4.871772]  ksys_write (fs/read_write.c:740)
[    4.871792]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    4.871814]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    4.871843] RIP: 0033:0x7f195005208e
[    4.871865] 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
[    4.871957] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    4.872001] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    4.872045] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 0000000000000008
[    4.872083] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    4.872122] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    4.872160] R13: 00005555dbb99fd0 R14: 0000000000000008 R15: 00007f194fe590d0
| [    5.012087] ------------[ cut here ]------------
| [    5.012134] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.012202] Modules linked in: netdevsim psample
| [    5.012297] Tainted: [W]=WARN
[    5.012319] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.012352] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.012382] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.012476] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    5.012502] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    5.012543] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042feb100
[    5.012582] RBP: 0000000000000000 R08: ff198b2044c54d10 R09: ff198b204cd11030
[    5.012628] R10: ff198b20465a0120 R11: fefefefefefefeff R12: 0000000000000000
[    5.012668] R13: 0000000000000010 R14: ff198b20465a0000 R15: ff198b2042feb100
[    5.012711] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.012754] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.012789] CR2: 00007f7217e292a0 CR3: 00000000064db005 CR4: 0000000000771ef0
[    5.012830] PKRU: 55555554
[    5.012847] Call Trace:
[    5.012863]  <TASK>
[    5.012878]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.012899]  register_netdevice (net/core/dev.c:11488)
[    5.012923] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    5.012959] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    5.012992] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    5.013024]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    5.013048]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    5.013081]  __driver_probe_device (drivers/base/dd.c:871)
[    5.013123]  driver_probe_device (drivers/base/dd.c:901)
[    5.013152]  __device_attach_driver (drivers/base/dd.c:1029)
[    5.013183]  bus_for_each_drv (drivers/base/bus.c:500)
[    5.013208]  __device_attach (drivers/base/dd.c:1101)
[    5.013232]  device_initial_probe (drivers/base/dd.c:1156)
[    5.013257]  bus_probe_device (drivers/base/bus.c:613)
[    5.013286]  device_add (drivers/base/core.c:3706)
[    5.013313] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    5.013344]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    5.013375]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    5.013399]  ksys_write (fs/read_write.c:740)
[    5.013420]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.013445]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.013478] RIP: 0033:0x7f195005208e
[    5.013499] 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
[    5.013599] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    5.013636] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    5.013675] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 0000000000000008
[    5.013715] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    5.013754] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    5.013796] R13: 00005555dbb99fd0 R14: 0000000000000008 R15: 00007f194fe590d0
| [    5.153512] ------------[ cut here ]------------
| [    5.153566] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.153631] Modules linked in: netdevsim psample
| [    5.153735] Tainted: [W]=WARN
[    5.153758] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.153792] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.153825] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.153923] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    5.153951] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    5.153993] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe8e00
[    5.154032] RBP: 0000000000000000 R08: ff198b2044c13190 R09: ff198b204cd17030
[    5.154067] R10: ff198b204cd1e120 R11: fefefefefefefeff R12: 0000000000000000
[    5.154107] R13: 0000000000000010 R14: ff198b204cd1e000 R15: ff198b2042fe8e00
[    5.154147] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.154192] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.154228] CR2: 00007fdbd0dd78f4 CR3: 00000000064db002 CR4: 0000000000771ef0
[    5.154275] PKRU: 55555554
[    5.154292] Call Trace:
[    5.154308]  <TASK>
[    5.154324]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.154348]  register_netdevice (net/core/dev.c:11488)
[    5.154369] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    5.154402] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    5.154432] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    5.154461]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    5.154482]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    5.154510]  __driver_probe_device (drivers/base/dd.c:871)
[    5.154536]  driver_probe_device (drivers/base/dd.c:901)
[    5.154557]  __device_attach_driver (drivers/base/dd.c:1029)
[    5.154585]  bus_for_each_drv (drivers/base/bus.c:500)
[    5.154610]  __device_attach (drivers/base/dd.c:1101)
[    5.154629]  device_initial_probe (drivers/base/dd.c:1156)
[    5.154648]  bus_probe_device (drivers/base/bus.c:613)
[    5.154669]  device_add (drivers/base/core.c:3706)
[    5.154688] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    5.154717]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    5.154743]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    5.154764]  ksys_write (fs/read_write.c:740)
[    5.154785]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.154804]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.154830] RIP: 0033:0x7f195005208e
[    5.154856] 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
[    5.154954] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    5.154997] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    5.155039] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 0000000000000008
[    5.155083] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    5.155122] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    5.155160] R13: 00005555dbb99fd0 R14: 0000000000000008 R15: 00007f194fe590d0
| [    5.288568] ------------[ cut here ]------------
| [    5.288621] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.288675] Modules linked in: netdevsim psample
| [    5.288761] Tainted: [W]=WARN
[    5.288785] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.288821] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.288852] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.288947] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    5.288973] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    5.289014] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043289400
[    5.289058] RBP: 0000000000000000 R08: ff198b2041951590 R09: ff198b204cd15030
[    5.289101] R10: ff198b204cd1c120 R11: fefefefefefefeff R12: 0000000000000000
[    5.289140] R13: 0000000000000010 R14: ff198b204cd1c000 R15: ff198b2043289400
[    5.289182] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.289224] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.289265] CR2: 00007f06a9080574 CR3: 00000000064db006 CR4: 0000000000771ef0
[    5.289311] PKRU: 55555554
[    5.289326] Call Trace:
[    5.289340]  <TASK>
[    5.289357]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.289379]  register_netdevice (net/core/dev.c:11488)
[    5.289401] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    5.289432] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    5.289465] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    5.289493]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    5.289516]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    5.289547]  __driver_probe_device (drivers/base/dd.c:871)
[    5.289573]  driver_probe_device (drivers/base/dd.c:901)
[    5.289595]  __device_attach_driver (drivers/base/dd.c:1029)
[    5.289624]  bus_for_each_drv (drivers/base/bus.c:500)
[    5.289647]  __device_attach (drivers/base/dd.c:1101)
[    5.289667]  device_initial_probe (drivers/base/dd.c:1156)
[    5.289690]  bus_probe_device (drivers/base/bus.c:613)
[    5.289710]  device_add (drivers/base/core.c:3706)
[    5.289730] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    5.289758]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    5.289789]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    5.289812]  ksys_write (fs/read_write.c:740)
[    5.289834]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.289856]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.289883] RIP: 0033:0x7f195005208e
[    5.289904] 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
[    5.289994] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    5.290038] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    5.290075] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 0000000000000008
[    5.290116] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    5.290155] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    5.290195] R13: 00005555dbb99fd0 R14: 0000000000000008 R15: 00007f194fe590d0
| [    5.479055] ------------[ cut here ]------------
| [    5.479104] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.479162] Modules linked in: netdevsim psample
| [    5.479254] Tainted: [W]=WARN
[    5.479276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.479319] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.479348] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.479440] RSP: 0018:ff60b5ce8041f6b0 EFLAGS: 00010286
[    5.479467] RAX: 00000000ffffffa6 RBX: 0000000000000080 RCX: 0000000000000000
[    5.479508] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2041dfac00
[    5.479550] RBP: 0000000000000000 R08: ff198b204192d850 R09: ff198b204cd2b02c
[    5.479587] R10: ff198b204cd18120 R11: fefefefefefefeff R12: 0000000000000000
[    5.479629] R13: 0000000000000010 R14: ff198b204cd18000 R15: ff198b2041dfac00
[    5.479671] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.479712] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.479745] CR2: 00007f194f402100 CR3: 00000000064db006 CR4: 0000000000771ef0
[    5.479783] PKRU: 55555554
[    5.479798] Call Trace:
[    5.479812]  <TASK>
[    5.479827]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.479848]  __dev_notify_flags (net/core/dev.c:9787)
[    5.479871]  netif_change_flags (net/core/dev.c:9820)
[    5.479893]  dev_change_flags (net/core/dev_api.c:68)
[    5.479912]  netkit_new_link (drivers/net/netkit.c:631)
[    5.479938]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    5.479959]  ? get_page_from_freelist (mm/page_alloc.c:1856 mm/page_alloc.c:1866 mm/page_alloc.c:3946)
[    5.479989]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    5.480017]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    5.480039]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    5.480067]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    5.480091]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    5.480113]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    5.480135]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    5.480160]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    5.480181]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.480203]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.480231] RIP: 0033:0x7f195005208e
[    5.480253] 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
[    5.480346] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    5.480387] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    5.480427] RDX: 0000000000000054 RSI: 00007f194f17acd0 RDI: 0000000000000008
[    5.480467] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    5.480509] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f620f30
[    5.480547] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    5.480864] ------------[ cut here ]------------
| [    5.480902] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.480950] Modules linked in: netdevsim psample
| [    5.481032] Tainted: [W]=WARN
[    5.481050] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.481083] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.481113] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.481201] RSP: 0018:ff60b5ce8041f6e0 EFLAGS: 00010286
[    5.481226] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    5.481263] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2041dfac00
[    5.481308] RBP: 0000000000000000 R08: ff198b204192d850 R09: ff198b204cd2b02c
[    5.481346] R10: ff198b204cd18120 R11: fefefefefefefeff R12: 0000000000000000
[    5.481384] R13: 0000000000000010 R14: ff198b204cd18000 R15: ff198b2041dfac00
[    5.481425] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.481465] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.481499] CR2: 000055c3507d16c0 CR3: 00000000064db006 CR4: 0000000000771ef0
[    5.481539] PKRU: 55555554
[    5.481553] Call Trace:
[    5.481568]  <TASK>
[    5.481587]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.481617]  __dev_notify_flags (net/core/dev.c:9787)
[    5.481638]  ? netif_change_flags (net/core/dev.c:9820)
[    5.481660]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    5.481682]  netkit_new_link (drivers/net/netkit.c:633)
[    5.481705]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    5.481728]  ? get_page_from_freelist (mm/page_alloc.c:1856 mm/page_alloc.c:1866 mm/page_alloc.c:3946)
[    5.481758]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    5.481785]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    5.481808]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    5.481836]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    5.481859]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    5.481881]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    5.481904]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    5.481927]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    5.481948]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.481971]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.481998] RIP: 0033:0x7f195005208e
[    5.482018] 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
[    5.482108] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    5.482152] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    5.482194] RDX: 0000000000000054 RSI: 00007f194f17acd0 RDI: 0000000000000008
[    5.482236] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    5.482277] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f620f30
[    5.482327] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    5.482459] ------------[ cut here ]------------
| [    5.482496] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.482548] Modules linked in: netdevsim psample
| [    5.482627] Tainted: [W]=WARN
[    5.482645] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.482680] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.482715] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.482803] RSP: 0018:ff60b5ce8041f6b0 EFLAGS: 00010286
[    5.482831] RAX: 00000000ffffffa6 RBX: 0000000000000080 RCX: 0000000000000000
[    5.482871] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043289400
[    5.482910] RBP: 0000000000000000 R08: ff198b2044ca5810 R09: ff198b204cd2902c
[    5.482952] R10: ff198b204cd1a120 R11: fefefefefefefeff R12: 0000000000000000
[    5.482997] R13: 0000000000000010 R14: ff198b204cd1a000 R15: ff198b2043289400
[    5.483044] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.483084] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.483118] CR2: 000055c3507d16c0 CR3: 00000000064db006 CR4: 0000000000771ef0
[    5.483155] PKRU: 55555554
[    5.483170] Call Trace:
[    5.483182]  <TASK>
[    5.483197]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.483219]  __dev_notify_flags (net/core/dev.c:9787)
[    5.483242]  ? notifier_call_chain (kernel/notifier.c:85)
[    5.483272]  netif_change_flags (net/core/dev.c:9820)
[    5.483301]  dev_change_flags (net/core/dev_api.c:68)
[    5.483322]  netkit_new_link (drivers/net/netkit.c:666)
[    5.483345]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    5.483371]  ? get_page_from_freelist (mm/page_alloc.c:1856 mm/page_alloc.c:1866 mm/page_alloc.c:3946)
[    5.483400]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    5.483427]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    5.483449]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    5.483477]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    5.483499]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    5.483520]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    5.483541]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    5.483563]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    5.483583]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.483606]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.483636] RIP: 0033:0x7f195005208e
[    5.483653] 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
[    5.483741] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    5.483783] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    5.483824] RDX: 0000000000000054 RSI: 00007f194f17acd0 RDI: 0000000000000008
[    5.483860] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    5.483897] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f620f30
[    5.483935] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    5.484198] ------------[ cut here ]------------
| [    5.484240] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.484291] Modules linked in: netdevsim psample
| [    5.484370] Tainted: [W]=WARN
[    5.484388] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.484423] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.484448] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.484551] RSP: 0018:ff60b5ce8041f9a0 EFLAGS: 00010286
[    5.484580] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    5.484624] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043289400
[    5.484666] RBP: 0000000000000000 R08: ff198b2044ca5810 R09: ff198b204cd2902c
[    5.484704] R10: ff198b204cd1a120 R11: fefefefefefefeff R12: 0000000000000000
[    5.484741] R13: 0000000000000010 R14: ff198b204cd1a000 R15: ff198b2043289400
[    5.484783] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.484825] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.484860] CR2: 000055c3507d16c0 CR3: 00000000064db006 CR4: 0000000000771ef0
[    5.484897] PKRU: 55555554
[    5.484912] Call Trace:
[    5.484924]  <TASK>
[    5.484937]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.484958]  __dev_notify_flags (net/core/dev.c:9787)
[    5.484980]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    5.485000]  rtnl_newlink (net/core/rtnetlink.c:3914 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    5.485022]  ? get_page_from_freelist (mm/page_alloc.c:1856 mm/page_alloc.c:1866 mm/page_alloc.c:3946)
[    5.485051]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    5.485079]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    5.485103]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    5.485130]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    5.485151]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    5.485172]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    5.485193]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    5.485215]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    5.485236]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.485260]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.485291] RIP: 0033:0x7f195005208e
[    5.485316] 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
[    5.485403] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    5.485439] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    5.485483] RDX: 0000000000000054 RSI: 00007f194f17acd0 RDI: 0000000000000008
[    5.485521] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    5.485557] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f620f30
[    5.485600] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    5.545800] ------------[ cut here ]------------
| [    5.545852] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.545902] Modules linked in: netdevsim psample
| [    5.545989] Tainted: [W]=WARN
[    5.546012] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.546044] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.546072] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.546160] RSP: 0018:ff60b5ce8041f6b0 EFLAGS: 00010286
[    5.546188] RAX: 00000000ffffffa6 RBX: 0000000000000080 RCX: 0000000000000000
[    5.546227] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2041dfac00
[    5.546269] RBP: 0000000000000000 R08: ff198b2044fbb8d0 R09: ff198b204cd2f02c
[    5.546313] R10: ff198b204cd54120 R11: fefefefefefefeff R12: 0000000000000000
[    5.546352] R13: 0000000000000010 R14: ff198b204cd54000 R15: ff198b2041dfac00
[    5.546396] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.546436] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.546470] CR2: 00007f194f033010 CR3: 00000000064db001 CR4: 0000000000771ef0
[    5.546512] PKRU: 55555554
[    5.546527] Call Trace:
[    5.546544]  <TASK>
[    5.546558]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.546580]  __dev_notify_flags (net/core/dev.c:9787)
[    5.546609]  ? notifier_call_chain (kernel/notifier.c:85)
[    5.546638]  netif_change_flags (net/core/dev.c:9820)
[    5.546659]  dev_change_flags (net/core/dev_api.c:68)
[    5.546681]  netkit_new_link (drivers/net/netkit.c:631)
[    5.546705]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    5.546726]  ? xas_load (lib/xarray.c:239)
[    5.546752]  ? filemap_get_read_batch (./include/linux/rcupdate.h:871 mm/filemap.c:2489)
[    5.546781]  ? get_page_from_freelist (mm/page_alloc.c:1856 mm/page_alloc.c:1866 mm/page_alloc.c:3946)
[    5.546808]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    5.546836]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    5.546857]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    5.546885]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    5.546906]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    5.546928]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    5.546950]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    5.546972]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    5.546995]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.547016]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.547044] RIP: 0033:0x7f195005208e
[    5.547066] 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
[    5.547157] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    5.547196] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    5.547236] RDX: 0000000000000054 RSI: 00007f194f04fc50 RDI: 0000000000000009
[    5.547281] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    5.547323] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f622120
[    5.547362] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    5.547595] ------------[ cut here ]------------
| [    5.547623] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.547672] Modules linked in: netdevsim psample
| [    5.547757] Tainted: [W]=WARN
[    5.547780] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.547812] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.547839] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.547928] RSP: 0018:ff60b5ce8041f6e0 EFLAGS: 00010286
[    5.547956] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    5.548000] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2041dfac00
[    5.548045] RBP: 0000000000000000 R08: ff198b2044fbb8d0 R09: ff198b204cd2f02c
[    5.548079] R10: ff198b204cd54120 R11: fefefefefefefeff R12: 0000000000000000
[    5.548116] R13: 0000000000000010 R14: ff198b204cd54000 R15: ff198b2041dfac00
[    5.548157] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.548199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.548233] CR2: 000055c3507d16c0 CR3: 00000000064db001 CR4: 0000000000771ef0
[    5.548276] PKRU: 55555554
[    5.548295] Call Trace:
[    5.548310]  <TASK>
[    5.548324]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.548342]  __dev_notify_flags (net/core/dev.c:9787)
[    5.548364]  ? netif_change_flags (net/core/dev.c:9820)
[    5.548386]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    5.548408]  netkit_new_link (drivers/net/netkit.c:633)
[    5.548432]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    5.548454]  ? xas_load (lib/xarray.c:239)
[    5.548475]  ? filemap_get_read_batch (./include/linux/rcupdate.h:871 mm/filemap.c:2489)
[    5.548503]  ? get_page_from_freelist (mm/page_alloc.c:1856 mm/page_alloc.c:1866 mm/page_alloc.c:3946)
[    5.548531]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    5.548559]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    5.548580]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    5.548613]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    5.548636]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    5.548658]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    5.548680]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    5.548702]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    5.548722]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.548744]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.548771] RIP: 0033:0x7f195005208e
[    5.548794] 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
[    5.548880] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    5.548919] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    5.548955] RDX: 0000000000000054 RSI: 00007f194f04fc50 RDI: 0000000000000009
[    5.548995] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    5.549032] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f622120
[    5.549071] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    5.549202] ------------[ cut here ]------------
| [    5.549238] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.549287] Modules linked in: netdevsim psample
| [    5.549364] Tainted: [W]=WARN
[    5.549382] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.549414] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.549442] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.549529] RSP: 0018:ff60b5ce8041f6b0 EFLAGS: 00010286
[    5.549558] RAX: 00000000ffffffa6 RBX: 0000000000000080 RCX: 0000000000000000
[    5.549600] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043289200
[    5.549642] RBP: 0000000000000000 R08: ff198b2044fbb810 R09: ff198b204cd2d02c
[    5.549680] R10: ff198b204cd56120 R11: fefefefefefefeff R12: 0000000000000000
[    5.549720] R13: 0000000000000010 R14: ff198b204cd56000 R15: ff198b2043289200
[    5.549764] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.549804] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.549836] CR2: 000055c3507d16c0 CR3: 00000000064db001 CR4: 0000000000771ef0
[    5.549881] PKRU: 55555554
[    5.549894] Call Trace:
[    5.549906]  <TASK>
[    5.549923]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.549945]  __dev_notify_flags (net/core/dev.c:9787)
[    5.549968]  ? notifier_call_chain (kernel/notifier.c:85)
[    5.549996]  netif_change_flags (net/core/dev.c:9820)
[    5.550016]  dev_change_flags (net/core/dev_api.c:68)
[    5.550035]  netkit_new_link (drivers/net/netkit.c:666)
[    5.550058]  rtnl_newlink (net/core/rtnetlink.c:3904 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    5.550078]  ? xas_load (lib/xarray.c:239)
[    5.550100]  ? filemap_get_read_batch (./include/linux/rcupdate.h:871 mm/filemap.c:2489)
[    5.550127]  ? get_page_from_freelist (mm/page_alloc.c:1856 mm/page_alloc.c:1866 mm/page_alloc.c:3946)
[    5.550156]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    5.550182]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    5.550206]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    5.550234]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    5.550257]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    5.550280]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    5.550305]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    5.550328]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    5.550349]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.550367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.550395] RIP: 0033:0x7f195005208e
[    5.550414] 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
[    5.550502] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    5.550538] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    5.550580] RDX: 0000000000000054 RSI: 00007f194f04fc50 RDI: 0000000000000009
[    5.550627] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    5.550662] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f622120
[    5.550701] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    5.550778] ------------[ cut here ]------------
| [    5.550803] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.550848] Modules linked in: netdevsim psample
| [    5.550927] Tainted: [W]=WARN
[    5.550947] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.550981] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.551008] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.551099] RSP: 0018:ff60b5ce8041f9a0 EFLAGS: 00010286
[    5.551128] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    5.551171] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043289200
[    5.551208] RBP: 0000000000000000 R08: ff198b2044fbb810 R09: ff198b204cd2d02c
[    5.551249] R10: ff198b204cd56120 R11: fefefefefefefeff R12: 0000000000000000
[    5.551291] R13: 0000000000000010 R14: ff198b204cd56000 R15: ff198b2043289200
[    5.551332] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.551371] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.551404] CR2: 000055c3507d16c0 CR3: 00000000064db001 CR4: 0000000000771ef0
[    5.551441] PKRU: 55555554
[    5.551457] Call Trace:
[    5.551470]  <TASK>
[    5.551487]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.551509]  __dev_notify_flags (net/core/dev.c:9787)
[    5.551529]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    5.551552]  rtnl_newlink (net/core/rtnetlink.c:3914 net/core/rtnetlink.c:4035 net/core/rtnetlink.c:4150)
[    5.551573]  ? xas_load (lib/xarray.c:239)
[    5.551599]  ? filemap_get_read_batch (./include/linux/rcupdate.h:871 mm/filemap.c:2489)
[    5.551628]  ? get_page_from_freelist (mm/page_alloc.c:1856 mm/page_alloc.c:1866 mm/page_alloc.c:3946)
[    5.551657]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3455)
[    5.551683]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    5.551704]  ? rtnl_calcit.isra.0 (./include/net/netlink.h:1734 (discriminator 1))
[    5.551733]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    5.551754]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    5.551776]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    5.551801]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    5.551822]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    5.551843]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.551863]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.551887] RIP: 0033:0x7f195005208e
[    5.551907] 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
[    5.551993] RSP: 002b:00007ffc89135f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    5.552030] RAX: ffffffffffffffda RBX: 00007ffc891360a0 RCX: 00007f195005208e
[    5.552070] RDX: 0000000000000054 RSI: 00007f194f04fc50 RDI: 0000000000000009
[    5.552110] RBP: 00007ffc89135fa0 R08: 0000000000000000 R09: 0000000000000000
[    5.552153] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194f622120
[    5.552190] R13: 00007ffc891360a0 R14: 00007f194f858140 R15: 0000000000000002
| [    5.555875] ------------[ cut here ]------------
| [    5.555929] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.555974] Modules linked in: netdevsim psample
| [    5.556073] Tainted: [W]=WARN
[    5.556091] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.556121] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.556147] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.556230] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    5.556259] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    5.556311] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043289000
[    5.556351] RBP: 0000000000000000 R08: ff198b2044fbb450 R09: ff198b204cd63030
[    5.556392] R10: ff198b204cd52120 R11: fefefefefefefeff R12: 0000000000000000
[    5.556430] R13: 0000000000000010 R14: ff198b204cd52000 R15: ff198b2043289000
[    5.556474] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.556512] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.556544] CR2: 00007f194f075070 CR3: 00000000064db001 CR4: 0000000000771ef0
[    5.556581] PKRU: 55555554
[    5.556601] Call Trace:
[    5.556614]  <TASK>
[    5.556626]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.556647]  register_netdevice (net/core/dev.c:11488)
[    5.556669] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    5.556702] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    5.556731] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    5.556759]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    5.556781]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    5.556807]  __driver_probe_device (drivers/base/dd.c:871)
[    5.556834]  driver_probe_device (drivers/base/dd.c:901)
[    5.556857]  __device_attach_driver (drivers/base/dd.c:1029)
[    5.556883]  bus_for_each_drv (drivers/base/bus.c:500)
[    5.556905]  __device_attach (drivers/base/dd.c:1101)
[    5.556927]  device_initial_probe (drivers/base/dd.c:1156)
[    5.556948]  bus_probe_device (drivers/base/bus.c:613)
[    5.556974]  device_add (drivers/base/core.c:3706)
[    5.556996] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    5.557024]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    5.557052]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    5.557073]  ksys_write (fs/read_write.c:740)
[    5.557094]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.557115]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.557142] RIP: 0033:0x7f195005208e
[    5.557163] 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
[    5.557253] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    5.557302] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    5.557340] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    5.557382] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    5.557421] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    5.557458] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    5.659829] ------------[ cut here ]------------
| [    5.659879] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.659932] Modules linked in: netdevsim psample
| [    5.660022] Tainted: [W]=WARN
[    5.660041] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.660078] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.660109] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.660205] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    5.660234] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    5.660288] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ffc300
[    5.660331] RBP: 0000000000000000 R08: ff198b2044c08b90 R09: ff198b204cd61030
[    5.660375] R10: ff198b204cd50120 R11: fefefefefefefeff R12: 0000000000000000
[    5.660415] R13: 0000000000000010 R14: ff198b204cd50000 R15: ff198b2042ffc300
[    5.660461] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.660504] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.660542] CR2: 00007f194f4030a0 CR3: 00000000064db003 CR4: 0000000000771ef0
[    5.660585] PKRU: 55555554
[    5.660603] Call Trace:
[    5.660617]  <TASK>
[    5.660635]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.660658]  register_netdevice (net/core/dev.c:11488)
[    5.660682] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    5.660713] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    5.660742] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    5.660770]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    5.660792]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    5.660820]  __driver_probe_device (drivers/base/dd.c:871)
[    5.660847]  driver_probe_device (drivers/base/dd.c:901)
[    5.660870]  __device_attach_driver (drivers/base/dd.c:1029)
[    5.660899]  bus_for_each_drv (drivers/base/bus.c:500)
[    5.660921]  __device_attach (drivers/base/dd.c:1101)
[    5.660941]  device_initial_probe (drivers/base/dd.c:1156)
[    5.660961]  bus_probe_device (drivers/base/bus.c:613)
[    5.660983]  device_add (drivers/base/core.c:3706)
[    5.661006] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    5.661041]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    5.661069]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    5.661089]  ksys_write (fs/read_write.c:740)
[    5.661109]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.661131]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.661160] RIP: 0033:0x7f195005208e
[    5.661179] 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
[    5.661274] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    5.661319] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f195005208e
[    5.661360] RDX: 0000000000000008 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    5.661398] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    5.661438] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    5.661479] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    5.800064] ------------[ cut here ]------------
| [    5.800115] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.800180] Modules linked in: netdevsim psample
| [    5.800277] Tainted: [W]=WARN
[    5.800308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.800344] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.800372] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.800456] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    5.800483] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    5.800522] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ff6e00
[    5.800563] RBP: 0000000000000000 R08: ff198b2044fbbed0 R09: ff198b204cd67030
[    5.800603] R10: ff198b204cd6e120 R11: fefefefefefefeff R12: 0000000000000000
[    5.800640] R13: 0000000000000010 R14: ff198b204cd6e000 R15: ff198b2042ff6e00
[    5.800683] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.800723] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.800757] CR2: 00007f4ceee208f4 CR3: 00000000064db004 CR4: 0000000000771ef0
[    5.800798] PKRU: 55555554
[    5.800816] Call Trace:
[    5.800834]  <TASK>
[    5.800850]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.800872]  register_netdevice (net/core/dev.c:11488)
[    5.800893] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    5.800928] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    5.800959] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    5.800986]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    5.801009]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    5.801036]  __driver_probe_device (drivers/base/dd.c:871)
[    5.801063]  driver_probe_device (drivers/base/dd.c:901)
[    5.801081]  __device_attach_driver (drivers/base/dd.c:1029)
[    5.801108]  bus_for_each_drv (drivers/base/bus.c:500)
[    5.801131]  __device_attach (drivers/base/dd.c:1101)
[    5.801152]  device_initial_probe (drivers/base/dd.c:1156)
[    5.801174]  bus_probe_device (drivers/base/bus.c:613)
[    5.801194]  device_add (drivers/base/core.c:3706)
[    5.801215] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    5.801243]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    5.801270]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    5.801300]  ksys_write (fs/read_write.c:740)
[    5.801328]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.801348]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.801375] RIP: 0033:0x7f195005208e
[    5.801396] 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
[    5.801487] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    5.801530] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f195005208e
[    5.801568] RDX: 0000000000000008 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    5.801610] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    5.801648] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    5.801685] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    5.935274] ------------[ cut here ]------------
| [    5.935338] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    5.935388] Modules linked in: netdevsim psample
| [    5.935477] Tainted: [W]=WARN
[    5.935495] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.935538] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    5.935572] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    5.935669] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    5.935697] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    5.935741] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ffc300
[    5.935778] RBP: 0000000000000000 R08: ff198b2044cbc1d0 R09: ff198b204cd65030
[    5.935816] R10: ff198b204cd6c120 R11: fefefefefefefeff R12: 0000000000000000
[    5.935854] R13: 0000000000000010 R14: ff198b204cd6c000 R15: ff198b2042ffc300
[    5.935898] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    5.935941] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.935976] CR2: 00007f45c0d5c2a0 CR3: 00000000064db005 CR4: 0000000000771ef0
[    5.936018] PKRU: 55555554
[    5.936034] Call Trace:
[    5.936051]  <TASK>
[    5.936067]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    5.936090]  register_netdevice (net/core/dev.c:11488)
[    5.936112] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    5.936143] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    5.936172] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    5.936201]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    5.936224]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    5.936249]  __driver_probe_device (drivers/base/dd.c:871)
[    5.936274]  driver_probe_device (drivers/base/dd.c:901)
[    5.936298]  __device_attach_driver (drivers/base/dd.c:1029)
[    5.936325]  bus_for_each_drv (drivers/base/bus.c:500)
[    5.936350]  __device_attach (drivers/base/dd.c:1101)
[    5.936371]  device_initial_probe (drivers/base/dd.c:1156)
[    5.936393]  bus_probe_device (drivers/base/bus.c:613)
[    5.936414]  device_add (drivers/base/core.c:3706)
[    5.936436] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    5.936466]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    5.936495]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    5.936519]  ksys_write (fs/read_write.c:740)
[    5.936541]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    5.936567]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    5.936599] RIP: 0033:0x7f195005208e
[    5.936620] 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
[    5.936713] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    5.936752] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    5.936788] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    5.936826] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    5.936867] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    5.936905] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    6.076266] ------------[ cut here ]------------
| [    6.076333] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    6.076385] Modules linked in: netdevsim psample
| [    6.076475] Tainted: [W]=WARN
[    6.076493] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    6.076529] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    6.076559] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    6.076659] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    6.076688] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    6.076731] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043289000
[    6.076771] RBP: 0000000000000000 R08: ff198b2044d1df10 R09: ff198b204cd7b030
[    6.076809] R10: ff198b204cd6a120 R11: fefefefefefefeff R12: 0000000000000000
[    6.076847] R13: 0000000000000010 R14: ff198b204cd6a000 R15: ff198b2043289000
[    6.076895] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    6.076935] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.076969] CR2: 00007fd0bdb58574 CR3: 00000000064db006 CR4: 0000000000771ef0
[    6.077006] PKRU: 55555554
[    6.077021] Call Trace:
[    6.077038]  <TASK>
[    6.077053]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    6.077075]  register_netdevice (net/core/dev.c:11488)
[    6.077097] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    6.077128] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    6.077157] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    6.077184]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    6.077206]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    6.077233]  __driver_probe_device (drivers/base/dd.c:871)
[    6.077260]  driver_probe_device (drivers/base/dd.c:901)
[    6.077285]  __device_attach_driver (drivers/base/dd.c:1029)
[    6.077312]  bus_for_each_drv (drivers/base/bus.c:500)
[    6.077334]  __device_attach (drivers/base/dd.c:1101)
[    6.077356]  device_initial_probe (drivers/base/dd.c:1156)
[    6.077377]  bus_probe_device (drivers/base/bus.c:613)
[    6.077399]  device_add (drivers/base/core.c:3706)
[    6.077422] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    6.077453]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    6.077483]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    6.077505]  ksys_write (fs/read_write.c:740)
[    6.077524]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    6.077546]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    6.077575] RIP: 0033:0x7f195005208e
[    6.077596] 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
[    6.077680] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    6.077720] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    6.077759] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    6.077798] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    6.077836] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    6.077879] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    6.210617] ------------[ cut here ]------------
| [    6.210674] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    6.210738] Modules linked in: netdevsim psample
| [    6.210827] Tainted: [W]=WARN
[    6.210848] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    6.210880] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    6.210912] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    6.211000] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    6.211028] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    6.211068] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ffc300
[    6.211104] RBP: 0000000000000000 R08: ff198b2044c318d0 R09: ff198b204cd79030
[    6.211141] R10: ff198b204cd68120 R11: fefefefefefefeff R12: 0000000000000000
[    6.211179] R13: 0000000000000010 R14: ff198b204cd68000 R15: ff198b2042ffc300
[    6.211220] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    6.211261] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.211299] CR2: 00007f4211d23574 CR3: 00000000064db001 CR4: 0000000000771ef0
[    6.211340] PKRU: 55555554
[    6.211356] Call Trace:
[    6.211372]  <TASK>
[    6.211386]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    6.211407]  register_netdevice (net/core/dev.c:11488)
[    6.211429] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    6.211458] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    6.211486] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    6.211511]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    6.211537]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    6.211564]  __driver_probe_device (drivers/base/dd.c:871)
[    6.211588]  driver_probe_device (drivers/base/dd.c:901)
[    6.211613]  __device_attach_driver (drivers/base/dd.c:1029)
[    6.211640]  bus_for_each_drv (drivers/base/bus.c:500)
[    6.211660]  __device_attach (drivers/base/dd.c:1101)
[    6.211682]  device_initial_probe (drivers/base/dd.c:1156)
[    6.211702]  bus_probe_device (drivers/base/bus.c:613)
[    6.211724]  device_add (drivers/base/core.c:3706)
[    6.211746] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    6.211773]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    6.211801]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    6.211825]  ksys_write (fs/read_write.c:740)
[    6.211845]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    6.211868]  ? __sysvec_call_function_single (arch/x86/kernel/smp.c:272)
[    6.211899]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    6.211927] RIP: 0033:0x7f195005208e
[    6.211948] 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
[    6.212044] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    6.212087] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f195005208e
[    6.212134] RDX: 0000000000000008 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    6.212175] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    6.212211] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    6.212252] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    6.355050] ------------[ cut here ]------------
| [    6.355104] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/254
| [    6.355163] Modules linked in: netdevsim psample
| [    6.355249] Tainted: [W]=WARN
[    6.355271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    6.355312] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    6.355345] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    6.355432] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    6.355461] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    6.355501] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043288500
[    6.355546] RBP: 0000000000000000 R08: ff198b2044c91790 R09: ff198b204cd7f030
[    6.355582] R10: ff198b204cdbe120 R11: fefefefefefefeff R12: 0000000000000000
[    6.355633] R13: 0000000000000010 R14: ff198b204cdbe000 R15: ff198b2043288500
[    6.355677] FS:  00007f194feca400(0000) GS:ff198b20bfbc8000(0000) knlGS:0000000000000000
[    6.355719] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.355754] CR2: 00007eff692ff8f4 CR3: 00000000064db002 CR4: 0000000000771ef0
[    6.355792] PKRU: 55555554
[    6.355809] Call Trace:
[    6.355826]  <TASK>
[    6.355840]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    6.355862]  register_netdevice (net/core/dev.c:11488)
[    6.355885] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    6.355914] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    6.355943] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    6.355971]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    6.355993]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    6.356020]  __driver_probe_device (drivers/base/dd.c:871)
[    6.356047]  driver_probe_device (drivers/base/dd.c:901)
[    6.356068]  __device_attach_driver (drivers/base/dd.c:1029)
[    6.356097]  bus_for_each_drv (drivers/base/bus.c:500)
[    6.356119]  __device_attach (drivers/base/dd.c:1101)
[    6.356140]  device_initial_probe (drivers/base/dd.c:1156)
[    6.356161]  bus_probe_device (drivers/base/bus.c:613)
[    6.356183]  device_add (drivers/base/core.c:3706)
[    6.356206] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    6.356233]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    6.356262]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    6.356288]  ksys_write (fs/read_write.c:740)
[    6.356307]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    6.356329]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    6.356357] RIP: 0033:0x7f195005208e
[    6.356379] 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
[    6.356470] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    6.356508] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    6.356544] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    6.356584] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    6.356626] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    6.356664] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    6.616073] ------------[ cut here ]------------
| [    6.616132] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/254
| [    6.616182] Modules linked in: netdevsim psample
| [    6.616287] Tainted: [W]=WARN
[    6.616314] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    6.616348] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    6.616376] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    6.616469] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    6.616502] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    6.616548] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043289200
[    6.616591] RBP: 0000000000000000 R08: ff198b204182f6d0 R09: ff198b2044f5d030
[    6.616642] R10: ff198b2044f52120 R11: fefefefefefefeff R12: 0000000000000000
[    6.616680] R13: 0000000000000010 R14: ff198b2044f52000 R15: ff198b2043289200
[    6.616727] FS:  00007f194feca400(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    6.616778] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.616813] CR2: 00007fd7c1497226 CR3: 00000000064db006 CR4: 0000000000771ef0
[    6.616855] PKRU: 55555554
[    6.616872] Call Trace:
[    6.616888]  <TASK>
[    6.616908]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    6.616936]  register_netdevice (net/core/dev.c:11488)
[    6.616958] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    6.616992] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    6.617021] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    6.617051]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    6.617072]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    6.617100]  __driver_probe_device (drivers/base/dd.c:871)
[    6.617129]  driver_probe_device (drivers/base/dd.c:901)
[    6.617154]  __device_attach_driver (drivers/base/dd.c:1029)
[    6.617184]  bus_for_each_drv (drivers/base/bus.c:500)
[    6.617211]  __device_attach (drivers/base/dd.c:1101)
[    6.617233]  device_initial_probe (drivers/base/dd.c:1156)
[    6.617257]  bus_probe_device (drivers/base/bus.c:613)
[    6.617285]  device_add (drivers/base/core.c:3706)
[    6.617307] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    6.617336]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    6.617364]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    6.617386]  ksys_write (fs/read_write.c:740)
[    6.617408]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    6.617432]  ? irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735 kernel/softirq.c:752)
[    6.617458]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    6.617489] RIP: 0033:0x7f195005208e
[    6.617512] 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
[    6.617617] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    6.617661] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    6.617711] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    6.617754] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    6.617798] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    6.617840] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    6.764221] ------------[ cut here ]------------
| [    6.764272] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/254
| [    6.764329] Modules linked in: netdevsim psample
| [    6.764431] Tainted: [W]=WARN
[    6.764452] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    6.764499] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    6.764528] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    6.765270] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    6.765303] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    6.765354] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe8400
[    6.765401] RBP: 0000000000000000 R08: ff198b2044c31590 R09: ff198b2044f73030
[    6.765441] R10: ff198b2044f50120 R11: fefefefefefefeff R12: 0000000000000000
[    6.765482] R13: 0000000000000010 R14: ff198b2044f50000 R15: ff198b2042fe8400
[    6.765528] FS:  00007f194feca400(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    6.765572] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.765616] CR2: 00007fd7c1497226 CR3: 00000000064db006 CR4: 0000000000771ef0
[    6.765661] PKRU: 55555554
[    6.765677] Call Trace:
[    6.765694]  <TASK>
[    6.765709]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    6.765730]  register_netdevice (net/core/dev.c:11488)
[    6.765755] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    6.765791] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    6.765821] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    6.765849]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    6.765877]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    6.765908]  __driver_probe_device (drivers/base/dd.c:871)
[    6.765939]  driver_probe_device (drivers/base/dd.c:901)
[    6.765960]  __device_attach_driver (drivers/base/dd.c:1029)
[    6.765987]  bus_for_each_drv (drivers/base/bus.c:500)
[    6.766013]  __device_attach (drivers/base/dd.c:1101)
[    6.766035]  device_initial_probe (drivers/base/dd.c:1156)
[    6.766063]  bus_probe_device (drivers/base/bus.c:613)
[    6.766092]  device_add (drivers/base/core.c:3706)
[    6.766117] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    6.766155]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    6.766187]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    6.766209]  ksys_write (fs/read_write.c:740)
[    6.766232]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    6.766258]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    6.766291] RIP: 0033:0x7f195005208e
[    6.766315] 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
[    6.766403] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    6.766447] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    6.766490] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    6.766526] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    6.766565] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    6.766608] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    6.910174] ------------[ cut here ]------------
| [    6.910235] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/254
| [    6.910298] Modules linked in: netdevsim psample
| [    6.910382] Tainted: [W]=WARN
[    6.910400] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    6.910431] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    6.910460] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    6.910546] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    6.910575] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    6.910617] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe8800
[    6.910658] RBP: 0000000000000000 R08: ff198b2044cbcd10 R09: ff198b2044f71030
[    6.910695] R10: ff198b204ce36120 R11: fefefefefefefeff R12: 0000000000000000
[    6.910740] R13: 0000000000000010 R14: ff198b204ce36000 R15: ff198b2042fe8800
[    6.910791] FS:  00007f194feca400(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    6.910836] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.910870] CR2: 00007f18250f7388 CR3: 00000000064db001 CR4: 0000000000771ef0
[    6.910912] PKRU: 55555554
[    6.910927] Call Trace:
[    6.910945]  <TASK>
[    6.910960]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    6.910980]  register_netdevice (net/core/dev.c:11488)
[    6.911002] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    6.911030] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    6.911057] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    6.911084]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    6.911105]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    6.911132]  __driver_probe_device (drivers/base/dd.c:871)
[    6.911163]  driver_probe_device (drivers/base/dd.c:901)
[    6.911184]  __device_attach_driver (drivers/base/dd.c:1029)
[    6.911206]  bus_for_each_drv (drivers/base/bus.c:500)
[    6.911229]  __device_attach (drivers/base/dd.c:1101)
[    6.911250]  device_initial_probe (drivers/base/dd.c:1156)
[    6.911269]  bus_probe_device (drivers/base/bus.c:613)
[    6.911295]  device_add (drivers/base/core.c:3706)
[    6.911316] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    6.911341]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    6.911370]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    6.911395]  ksys_write (fs/read_write.c:740)
[    6.911416]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    6.911439]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    6.911467] RIP: 0033:0x7f195005208e
[    6.911487] 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
[    6.911574] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    6.911612] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    6.911653] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    6.911691] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    6.911730] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    6.911766] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    7.058223] ------------[ cut here ]------------
| [    7.058288] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/254
| [    7.058339] Modules linked in: netdevsim psample
| [    7.058426] Tainted: [W]=WARN
[    7.058450] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.058482] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    7.058512] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    7.058615] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    7.058646] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    7.058687] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2041dfad00
[    7.058724] RBP: 0000000000000000 R08: ff198b2041932110 R09: ff198b2044f77030
[    7.058767] R10: ff198b204ce34120 R11: fefefefefefefeff R12: 0000000000000000
[    7.058807] R13: 0000000000000010 R14: ff198b204ce34000 R15: ff198b2041dfad00
[    7.058849] FS:  00007f194feca400(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    7.058891] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.058926] CR2: 00007f18250f7388 CR3: 00000000064db001 CR4: 0000000000771ef0
[    7.058965] PKRU: 55555554
[    7.058980] Call Trace:
[    7.058995]  <TASK>
[    7.059010]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    7.059034]  register_netdevice (net/core/dev.c:11488)
[    7.059056] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    7.059086] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    7.059114] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    7.059142]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    7.059163]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    7.059192]  __driver_probe_device (drivers/base/dd.c:871)
[    7.059217]  driver_probe_device (drivers/base/dd.c:901)
[    7.059236]  __device_attach_driver (drivers/base/dd.c:1029)
[    7.059263]  bus_for_each_drv (drivers/base/bus.c:500)
[    7.059291]  __device_attach (drivers/base/dd.c:1101)
[    7.059314]  device_initial_probe (drivers/base/dd.c:1156)
[    7.059335]  bus_probe_device (drivers/base/bus.c:613)
[    7.059356]  device_add (drivers/base/core.c:3706)
[    7.059378] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    7.059405]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    7.059440]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    7.059462]  ksys_write (fs/read_write.c:740)
[    7.059489]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    7.059510]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    7.059541] RIP: 0033:0x7f195005208e
[    7.059567] 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
[    7.059659] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    7.059699] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f195005208e
[    7.059745] RDX: 0000000000000008 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    7.059781] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    7.059823] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    7.059865] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    7.204628] ------------[ cut here ]------------
| [    7.204693] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/254
| [    7.204743] Modules linked in: netdevsim psample
| [    7.204826] Tainted: [W]=WARN
[    7.204847] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.204879] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    7.204906] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    7.204992] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    7.205025] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    7.205064] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe4200
[    7.205104] RBP: 0000000000000000 R08: ff198b2041946cd0 R09: ff198b2044f75030
[    7.205148] R10: ff198b204ce32120 R11: fefefefefefefeff R12: 0000000000000000
[    7.205187] R13: 0000000000000010 R14: ff198b204ce32000 R15: ff198b2042fe4200
[    7.205228] FS:  00007f194feca400(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    7.205270] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.205309] CR2: 00007f18250f7388 CR3: 00000000064db001 CR4: 0000000000771ef0
[    7.205349] PKRU: 55555554
[    7.205364] Call Trace:
[    7.205380]  <TASK>
[    7.205394]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    7.205420]  register_netdevice (net/core/dev.c:11488)
[    7.205442] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    7.205472] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    7.205501] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    7.205529]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    7.205550]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    7.205576]  __driver_probe_device (drivers/base/dd.c:871)
[    7.205607]  driver_probe_device (drivers/base/dd.c:901)
[    7.205631]  __device_attach_driver (drivers/base/dd.c:1029)
[    7.205659]  bus_for_each_drv (drivers/base/bus.c:500)
[    7.205685]  __device_attach (drivers/base/dd.c:1101)
[    7.205706]  device_initial_probe (drivers/base/dd.c:1156)
[    7.205728]  bus_probe_device (drivers/base/bus.c:613)
[    7.205749]  device_add (drivers/base/core.c:3706)
[    7.205770] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    7.205799]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    7.205826]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    7.205847]  ksys_write (fs/read_write.c:740)
[    7.205872]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    7.205894]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    7.205920] RIP: 0033:0x7f195005208e
[    7.205939] 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
[    7.206025] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    7.206066] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    7.206102] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    7.206142] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    7.206178] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    7.206215] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    7.348592] ------------[ cut here ]------------
| [    7.348680] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/254
| [    7.348739] Modules linked in: netdevsim psample
| [    7.348833] Tainted: [W]=WARN
[    7.348854] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.348891] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    7.348921] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    7.349034] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    7.349062] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    7.349107] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe8400
[    7.349148] RBP: 0000000000000000 R08: ff198b2044fb9850 R09: ff198b204ce43030
[    7.349188] R10: ff198b204ce30120 R11: fefefefefefefeff R12: 0000000000000000
[    7.349232] R13: 0000000000000010 R14: ff198b204ce30000 R15: ff198b2042fe8400
[    7.349289] FS:  00007f194feca400(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    7.349334] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.349371] CR2: 00007f18250f7388 CR3: 00000000064db001 CR4: 0000000000771ef0
[    7.349418] PKRU: 55555554
[    7.349432] Call Trace:
[    7.349451]  <TASK>
[    7.349468]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    7.349491]  register_netdevice (net/core/dev.c:11488)
[    7.349513] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    7.349543] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    7.349574] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    7.349610]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    7.349635]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    7.349662]  __driver_probe_device (drivers/base/dd.c:871)
[    7.349692]  driver_probe_device (drivers/base/dd.c:901)
[    7.349710]  __device_attach_driver (drivers/base/dd.c:1029)
[    7.349736]  bus_for_each_drv (drivers/base/bus.c:500)
[    7.349755]  __device_attach (drivers/base/dd.c:1101)
[    7.349779]  device_initial_probe (drivers/base/dd.c:1156)
[    7.349802]  bus_probe_device (drivers/base/bus.c:613)
[    7.349828]  device_add (drivers/base/core.c:3706)
[    7.349849] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    7.349879]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    7.349910]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    7.349931]  ksys_write (fs/read_write.c:740)
[    7.349953]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    7.349977]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    7.350005] RIP: 0033:0x7f195005208e
[    7.350028] 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
[    7.350123] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    7.350164] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    7.350203] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    7.350245] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    7.350293] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    7.350337] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    7.492207] ------------[ cut here ]------------
| [    7.492273] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/254
| [    7.492340] Modules linked in: netdevsim psample
| [    7.492437] Tainted: [W]=WARN
[    7.492459] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.492492] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    7.492522] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    7.492623] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    7.492652] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    7.492701] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043288e00
[    7.492745] RBP: 0000000000000000 R08: ff198b2044fb92d0 R09: ff198b204ce41030
[    7.492788] R10: ff198b204ce4e120 R11: fefefefefefefeff R12: 0000000000000000
[    7.492832] R13: 0000000000000010 R14: ff198b204ce4e000 R15: ff198b2043288e00
[    7.492877] FS:  00007f194feca400(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    7.492924] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.492958] CR2: 00007f18250f7388 CR3: 00000000064db001 CR4: 0000000000771ef0
[    7.492999] PKRU: 55555554
[    7.493013] Call Trace:
[    7.493027]  <TASK>
[    7.493042]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    7.493063]  register_netdevice (net/core/dev.c:11488)
[    7.493086] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    7.493117] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    7.493148] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    7.493179]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    7.493200]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    7.493233]  __driver_probe_device (drivers/base/dd.c:871)
[    7.493259]  driver_probe_device (drivers/base/dd.c:901)
[    7.493284]  __device_attach_driver (drivers/base/dd.c:1029)
[    7.493310]  bus_for_each_drv (drivers/base/bus.c:500)
[    7.493333]  __device_attach (drivers/base/dd.c:1101)
[    7.493354]  device_initial_probe (drivers/base/dd.c:1156)
[    7.493375]  bus_probe_device (drivers/base/bus.c:613)
[    7.493398]  device_add (drivers/base/core.c:3706)
[    7.493419] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    7.493450]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    7.493479]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    7.493500]  ksys_write (fs/read_write.c:740)
[    7.493521]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    7.493545]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    7.493571] RIP: 0033:0x7f195005208e
[    7.493593] 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
[    7.493693] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    7.493745] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    7.493796] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    7.493839] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    7.493878] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    7.493918] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    7.509951] ------------[ cut here ]------------
| [    7.509999] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: python3/254
| [    7.510056] Modules linked in: netdevsim psample
| [    7.510148] Tainted: [W]=WARN
[    7.510170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.510204] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    7.510233] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    7.510341] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    7.510368] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    7.510408] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe4b00
[    7.510457] RBP: 0000000000000000 R08: ff198b2044fb9f50 R09: ff198b204307a030
[    7.510501] R10: ff198b20419a2120 R11: fefefefefefefeff R12: 0000000000000000
[    7.510548] R13: 0000000000000010 R14: ff198b20419a2000 R15: ff198b2042fe4b00
[    7.510593] FS:  00007f194feca400(0000) GS:ff198b20bfac8000(0000) knlGS:0000000000000000
[    7.510638] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.510674] CR2: 00007ffc83cbeff0 CR3: 00000000064db004 CR4: 0000000000771ef0
[    7.510717] PKRU: 55555554
[    7.510731] Call Trace:
[    7.510745]  <TASK>
[    7.510760]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    7.510783]  register_netdevice (net/core/dev.c:11488)
[    7.510806] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    7.510836] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    7.510864] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    7.510897]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    7.510917]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    7.510947]  __driver_probe_device (drivers/base/dd.c:871)
[    7.510976]  driver_probe_device (drivers/base/dd.c:901)
[    7.511001]  __device_attach_driver (drivers/base/dd.c:1029)
[    7.511035]  bus_for_each_drv (drivers/base/bus.c:500)
[    7.511054]  __device_attach (drivers/base/dd.c:1101)
[    7.511082]  device_initial_probe (drivers/base/dd.c:1156)
[    7.511105]  bus_probe_device (drivers/base/bus.c:613)
[    7.511128]  device_add (drivers/base/core.c:3706)
[    7.511152] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    7.511183]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    7.511215]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    7.511237]  ksys_write (fs/read_write.c:740)
[    7.511263]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    7.511291]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    7.511321] RIP: 0033:0x7f195005208e
[    7.511341] 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
[    7.511433] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    7.511475] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    7.511516] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    7.511559] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    7.511609] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    7.511659] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    7.645221] ------------[ cut here ]------------
| [    7.645267] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: python3/254
| [    7.645329] Modules linked in: netdevsim psample
| [    7.645420] Tainted: [W]=WARN
[    7.645443] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.645476] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    7.645505] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    7.645602] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    7.645632] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    7.645676] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ffb000
[    7.645719] RBP: 0000000000000000 R08: ff198b204cec3290 R09: ff198b2043078030
[    7.645757] R10: ff198b20431ee120 R11: fefefefefefefeff R12: 0000000000000000
[    7.645799] R13: 0000000000000010 R14: ff198b20431ee000 R15: ff198b2042ffb000
[    7.645844] FS:  00007f194feca400(0000) GS:ff198b20bfac8000(0000) knlGS:0000000000000000
[    7.645886] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.645918] CR2: 00007f49a9bcc8f4 CR3: 00000000064db005 CR4: 0000000000771ef0
[    7.645964] PKRU: 55555554
[    7.645977] Call Trace:
[    7.645990]  <TASK>
[    7.646006]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    7.646032]  register_netdevice (net/core/dev.c:11488)
[    7.646056] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    7.646084] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    7.646115] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    7.646146]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    7.646167]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    7.646197]  __driver_probe_device (drivers/base/dd.c:871)
[    7.646224]  driver_probe_device (drivers/base/dd.c:901)
[    7.646245]  __device_attach_driver (drivers/base/dd.c:1029)
[    7.646276]  bus_for_each_drv (drivers/base/bus.c:500)
[    7.646300]  __device_attach (drivers/base/dd.c:1101)
[    7.646318]  device_initial_probe (drivers/base/dd.c:1156)
[    7.646343]  bus_probe_device (drivers/base/bus.c:613)
[    7.646366]  device_add (drivers/base/core.c:3706)
[    7.646387] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    7.646418]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    7.646447]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    7.646469]  ksys_write (fs/read_write.c:740)
[    7.646491]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    7.646512]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    7.646547] RIP: 0033:0x7f195005208e
[    7.646567] 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
[    7.646669] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    7.646708] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    7.646751] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    7.646796] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    7.646839] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    7.646878] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    7.785276] ------------[ cut here ]------------
| [    7.785333] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: python3/254
| [    7.785396] Modules linked in: netdevsim psample
| [    7.785476] Tainted: [W]=WARN
[    7.785494] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.785530] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    7.785560] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    7.785664] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    7.785696] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    7.785740] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ffc900
[    7.785781] RBP: 0000000000000000 R08: ff198b2044fbb110 R09: ff198b204cf42030
[    7.785821] R10: ff198b20431ec120 R11: fefefefefefefeff R12: 0000000000000000
[    7.785859] R13: 0000000000000010 R14: ff198b20431ec000 R15: ff198b2042ffc900
[    7.785900] FS:  00007f194feca400(0000) GS:ff198b20bfac8000(0000) knlGS:0000000000000000
[    7.785943] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.785976] CR2: 00007fd7c16f1580 CR3: 00000000064db005 CR4: 0000000000771ef0
[    7.786018] PKRU: 55555554
[    7.786033] Call Trace:
[    7.786046]  <TASK>
[    7.786062]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    7.786084]  register_netdevice (net/core/dev.c:11488)
[    7.786106] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    7.786137] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    7.786165] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    7.786187]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    7.786207]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    7.786233]  __driver_probe_device (drivers/base/dd.c:871)
[    7.786262]  driver_probe_device (drivers/base/dd.c:901)
[    7.786285]  __device_attach_driver (drivers/base/dd.c:1029)
[    7.786311]  bus_for_each_drv (drivers/base/bus.c:500)
[    7.786332]  __device_attach (drivers/base/dd.c:1101)
[    7.786352]  device_initial_probe (drivers/base/dd.c:1156)
[    7.786371]  bus_probe_device (drivers/base/bus.c:613)
[    7.786394]  device_add (drivers/base/core.c:3706)
[    7.786414] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    7.786437]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    7.786467]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    7.786490]  ksys_write (fs/read_write.c:740)
[    7.786510]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    7.786532]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    7.786560] RIP: 0033:0x7f195005208e
[    7.786581] 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
[    7.786660] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    7.786700] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    7.786740] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    7.786778] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    7.786816] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    7.786856] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    7.919584] ------------[ cut here ]------------
| [    7.919630] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: python3/254
| [    7.919683] Modules linked in: netdevsim psample
| [    7.919772] Tainted: [W]=WARN
[    7.919794] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.919826] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    7.919850] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    7.919940] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    7.919967] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    7.920006] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe8400
[    7.920047] RBP: 0000000000000000 R08: ff198b2044d29ad0 R09: ff198b204cf40030
[    7.920088] R10: ff198b20431ea120 R11: fefefefefefefeff R12: 0000000000000000
[    7.920135] R13: 0000000000000010 R14: ff198b20431ea000 R15: ff198b2042fe8400
[    7.920184] FS:  00007f194feca400(0000) GS:ff198b20bfac8000(0000) knlGS:0000000000000000
[    7.920227] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.920263] CR2: 00007fd7c16f1580 CR3: 00000000064db005 CR4: 0000000000771ef0
[    7.920308] PKRU: 55555554
[    7.920322] Call Trace:
[    7.920336]  <TASK>
[    7.920351]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    7.920373]  register_netdevice (net/core/dev.c:11488)
[    7.920395] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    7.920425] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    7.920453] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    7.920481]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    7.920503]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    7.920530]  __driver_probe_device (drivers/base/dd.c:871)
[    7.920561]  driver_probe_device (drivers/base/dd.c:901)
[    7.920582]  __device_attach_driver (drivers/base/dd.c:1029)
[    7.920615]  bus_for_each_drv (drivers/base/bus.c:500)
[    7.920638]  __device_attach (drivers/base/dd.c:1101)
[    7.920662]  device_initial_probe (drivers/base/dd.c:1156)
[    7.920682]  bus_probe_device (drivers/base/bus.c:613)
[    7.920704]  device_add (drivers/base/core.c:3706)
[    7.920725] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    7.920752]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    7.920774]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    7.920796]  ksys_write (fs/read_write.c:740)
[    7.920817]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    7.920837]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    7.920868] RIP: 0033:0x7f195005208e
[    7.920887] 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
[    7.920977] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    7.921017] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f195005208e
[    7.921057] RDX: 0000000000000008 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    7.921095] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    7.921137] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    7.921191] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    8.060566] ------------[ cut here ]------------
| [    8.060626] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: python3/254
| [    8.060672] Modules linked in: netdevsim psample
| [    8.060761] Tainted: [W]=WARN
[    8.060783] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.060813] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.060837] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.060932] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    8.060962] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    8.061007] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe8600
[    8.061047] RBP: 0000000000000000 R08: ff198b204ced91d0 R09: ff198b204cf46030
[    8.061087] R10: ff198b20431e8120 R11: fefefefefefefeff R12: 0000000000000000
[    8.061127] R13: 0000000000000010 R14: ff198b20431e8000 R15: ff198b2042fe8600
[    8.061171] FS:  00007f194feca400(0000) GS:ff198b20bfac8000(0000) knlGS:0000000000000000
[    8.061218] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.061256] CR2: 00007fd7c16f1580 CR3: 00000000064db005 CR4: 0000000000771ef0
[    8.061304] PKRU: 55555554
[    8.061319] Call Trace:
[    8.061332]  <TASK>
[    8.061349]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    8.061369]  register_netdevice (net/core/dev.c:11488)
[    8.061393] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    8.061421] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    8.061449] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    8.061476]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    8.061497]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    8.061527]  __driver_probe_device (drivers/base/dd.c:871)
[    8.061554]  driver_probe_device (drivers/base/dd.c:901)
[    8.061574]  __device_attach_driver (drivers/base/dd.c:1029)
[    8.061604]  bus_for_each_drv (drivers/base/bus.c:500)
[    8.061627]  __device_attach (drivers/base/dd.c:1101)
[    8.061646]  device_initial_probe (drivers/base/dd.c:1156)
[    8.061665]  bus_probe_device (drivers/base/bus.c:613)
[    8.061687]  device_add (drivers/base/core.c:3706)
[    8.061707] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    8.061730]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    8.061756]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    8.061777]  ksys_write (fs/read_write.c:740)
[    8.061799]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.061821]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.061850] RIP: 0033:0x7f195005208e
[    8.061871] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    8.061964] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    8.062000] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    8.062042] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    8.062084] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    8.062124] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    8.062165] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    8.202947] ------------[ cut here ]------------
| [    8.203003] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: python3/254
| [    8.203067] Modules linked in: netdevsim psample
| [    8.203160] Tainted: [W]=WARN
[    8.203180] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.203213] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.203241] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.203337] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    8.203365] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    8.203397] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe4400
[    8.203437] RBP: 0000000000000000 R08: ff198b2042fbca50 R09: ff198b204cf44030
[    8.203479] R10: ff198b204cf4e120 R11: fefefefefefefeff R12: 0000000000000000
[    8.203512] R13: 0000000000000010 R14: ff198b204cf4e000 R15: ff198b2042fe4400
[    8.203555] FS:  00007f194feca400(0000) GS:ff198b20bfac8000(0000) knlGS:0000000000000000
[    8.203603] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.203640] CR2: 00007fd7c16f1580 CR3: 00000000064db006 CR4: 0000000000771ef0
[    8.203679] PKRU: 55555554
[    8.203694] Call Trace:
[    8.203707]  <TASK>
[    8.203723]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    8.203743]  register_netdevice (net/core/dev.c:11488)
[    8.203764] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    8.203795] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    8.203823] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    8.203850]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    8.203873]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    8.203896]  __driver_probe_device (drivers/base/dd.c:871)
[    8.203925]  driver_probe_device (drivers/base/dd.c:901)
[    8.203945]  __device_attach_driver (drivers/base/dd.c:1029)
[    8.203972]  bus_for_each_drv (drivers/base/bus.c:500)
[    8.203996]  __device_attach (drivers/base/dd.c:1101)
[    8.204018]  device_initial_probe (drivers/base/dd.c:1156)
[    8.204038]  bus_probe_device (drivers/base/bus.c:613)
[    8.204058]  device_add (drivers/base/core.c:3706)
[    8.204082] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    8.204109]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    8.204137]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    8.204159]  ksys_write (fs/read_write.c:740)
[    8.204179]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.204198]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.204230] RIP: 0033:0x7f195005208e
[    8.204251] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    8.204347] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    8.204392] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    8.204433] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    8.204475] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    8.204518] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    8.204563] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    8.339828] ------------[ cut here ]------------
| [    8.339879] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: python3/254
| [    8.339942] Modules linked in: netdevsim psample
| [    8.340031] Tainted: [W]=WARN
[    8.340055] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.340091] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.340123] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.340219] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    8.340245] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    8.340286] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042fe8700
[    8.340326] RBP: 0000000000000000 R08: ff198b204cec3450 R09: ff198b204cf5a030
[    8.340366] R10: ff198b204cf4c120 R11: fefefefefefefeff R12: 0000000000000000
[    8.340409] R13: 0000000000000010 R14: ff198b204cf4c000 R15: ff198b2042fe8700
[    8.340451] FS:  00007f194feca400(0000) GS:ff198b20bfac8000(0000) knlGS:0000000000000000
[    8.340494] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.340523] CR2: 00007fb29d40e8f4 CR3: 00000000064db006 CR4: 0000000000771ef0
[    8.340572] PKRU: 55555554
[    8.340586] Call Trace:
[    8.340603]  <TASK>
[    8.340617]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    8.340641]  register_netdevice (net/core/dev.c:11488)
[    8.340662] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    8.340692] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    8.340719] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    8.340750]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    8.340773]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    8.340802]  __driver_probe_device (drivers/base/dd.c:871)
[    8.340828]  driver_probe_device (drivers/base/dd.c:901)
[    8.340851]  __device_attach_driver (drivers/base/dd.c:1029)
[    8.340880]  bus_for_each_drv (drivers/base/bus.c:500)
[    8.340903]  __device_attach (drivers/base/dd.c:1101)
[    8.340925]  device_initial_probe (drivers/base/dd.c:1156)
[    8.340945]  bus_probe_device (drivers/base/bus.c:613)
[    8.340967]  device_add (drivers/base/core.c:3706)
[    8.340988] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    8.341013]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    8.341044]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    8.341069]  ksys_write (fs/read_write.c:740)
[    8.341088]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.341111]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.341141] RIP: 0033:0x7f195005208e
[    8.341164] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    8.341255] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    8.341301] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    8.341344] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    8.341382] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    8.341425] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    8.341466] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    8.482716] ------------[ cut here ]------------
| [    8.482772] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: python3/254
| [    8.482833] Modules linked in: netdevsim psample
| [    8.482925] Tainted: [W]=WARN
[    8.482946] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.482979] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.483006] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.483094] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    8.483124] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    8.483166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ffc600
[    8.483206] RBP: 0000000000000000 R08: ff198b204ceeb490 R09: ff198b204cf58030
[    8.483244] R10: ff198b204cf4a120 R11: fefefefefefefeff R12: 0000000000000000
[    8.483294] R13: 0000000000000010 R14: ff198b204cf4a000 R15: ff198b2042ffc600
[    8.483336] FS:  00007f194feca400(0000) GS:ff198b20bfac8000(0000) knlGS:0000000000000000
[    8.483378] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.483412] CR2: 00007fd7c16f1580 CR3: 00000000064db006 CR4: 0000000000771ef0
[    8.483451] PKRU: 55555554
[    8.483466] Call Trace:
[    8.483479]  <TASK>
[    8.483494]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    8.483516]  register_netdevice (net/core/dev.c:11488)
[    8.483537] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    8.483566] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    8.483593] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    8.483623]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    8.483646]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    8.483674]  __driver_probe_device (drivers/base/dd.c:871)
[    8.483702]  driver_probe_device (drivers/base/dd.c:901)
[    8.483723]  __device_attach_driver (drivers/base/dd.c:1029)
[    8.483751]  bus_for_each_drv (drivers/base/bus.c:500)
[    8.483773]  __device_attach (drivers/base/dd.c:1101)
[    8.483795]  device_initial_probe (drivers/base/dd.c:1156)
[    8.483815]  bus_probe_device (drivers/base/bus.c:613)
[    8.483843]  device_add (drivers/base/core.c:3706)
[    8.483864] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    8.483893]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    8.483922]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    8.483948]  ksys_write (fs/read_write.c:740)
[    8.483968]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.483995]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.484024] RIP: 0033:0x7f195005208e
[    8.484045] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    8.484132] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    8.484169] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    8.484209] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    8.484246] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    8.484291] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    8.484328] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    8.625310] ------------[ cut here ]------------
| [    8.625362] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: python3/254
| [    8.625431] Modules linked in: netdevsim psample
| [    8.625543] Tainted: [W]=WARN
[    8.625564] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.625604] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.625633] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.625728] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    8.625756] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    8.625794] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ffb300
[    8.625834] RBP: 0000000000000000 R08: ff198b204ceeb7d0 R09: ff198b204cf5e030
[    8.625874] R10: ff198b204cf48120 R11: fefefefefefefeff R12: 0000000000000000
[    8.625916] R13: 0000000000000010 R14: ff198b204cf48000 R15: ff198b2042ffb300
[    8.625961] FS:  00007f194feca400(0000) GS:ff198b20bfac8000(0000) knlGS:0000000000000000
[    8.626005] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.626040] CR2: 00007fd7c16f1580 CR3: 00000000064db006 CR4: 0000000000771ef0
[    8.626081] PKRU: 55555554
[    8.626096] Call Trace:
[    8.626112]  <TASK>
[    8.626127]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    8.626149]  register_netdevice (net/core/dev.c:11488)
[    8.626169] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    8.626200] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    8.626227] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    8.626254]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    8.626285]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    8.626315]  __driver_probe_device (drivers/base/dd.c:871)
[    8.626343]  driver_probe_device (drivers/base/dd.c:901)
[    8.626364]  __device_attach_driver (drivers/base/dd.c:1029)
[    8.626395]  bus_for_each_drv (drivers/base/bus.c:500)
[    8.626417]  __device_attach (drivers/base/dd.c:1101)
[    8.626440]  device_initial_probe (drivers/base/dd.c:1156)
[    8.626462]  bus_probe_device (drivers/base/bus.c:613)
[    8.626485]  device_add (drivers/base/core.c:3706)
[    8.626506] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    8.626537]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    8.626562]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    8.626586]  ksys_write (fs/read_write.c:740)
[    8.626610]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.626630]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.626660] RIP: 0033:0x7f195005208e
[    8.626682] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    8.626772] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    8.626814] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    8.626855] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    8.626893] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    8.626933] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    8.626974] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    8.760679] ------------[ cut here ]------------
| [    8.760724] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: python3/254
| [    8.760780] Modules linked in: netdevsim psample
| [    8.760876] Tainted: [W]=WARN
[    8.760899] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.760937] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.760965] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.761058] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    8.761090] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    8.761130] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043288e00
[    8.761172] RBP: 0000000000000000 R08: ff198b204cec37d0 R09: ff198b204cf5c030
[    8.761214] R10: ff198b204cf6e120 R11: fefefefefefefeff R12: 0000000000000000
[    8.761254] R13: 0000000000000010 R14: ff198b204cf6e000 R15: ff198b2043288e00
[    8.761301] FS:  00007f194feca400(0000) GS:ff198b20bfac8000(0000) knlGS:0000000000000000
[    8.761344] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.761375] CR2: 00007f41d7c2c8f4 CR3: 00000000064db001 CR4: 0000000000771ef0
[    8.761414] PKRU: 55555554
[    8.761429] Call Trace:
[    8.761444]  <TASK>
[    8.761459]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    8.761482]  register_netdevice (net/core/dev.c:11488)
[    8.761502] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    8.761534] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    8.761567] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    8.761597]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    8.761628]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    8.761655]  __driver_probe_device (drivers/base/dd.c:871)
[    8.761681]  driver_probe_device (drivers/base/dd.c:901)
[    8.761704]  __device_attach_driver (drivers/base/dd.c:1029)
[    8.761730]  bus_for_each_drv (drivers/base/bus.c:500)
[    8.761751]  __device_attach (drivers/base/dd.c:1101)
[    8.761770]  device_initial_probe (drivers/base/dd.c:1156)
[    8.761791]  bus_probe_device (drivers/base/bus.c:613)
[    8.761816]  device_add (drivers/base/core.c:3706)
[    8.761844] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    8.761876]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    8.761904]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    8.761928]  ksys_write (fs/read_write.c:740)
[    8.761949]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.761973]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.762000] RIP: 0033:0x7f195005208e
[    8.762020] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    8.762110] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    8.762149] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    8.762189] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    8.762232] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    8.762271] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    8.762310] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    8.905953] ------------[ cut here ]------------
| [    8.906008] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: python3/254
| [    8.906062] Modules linked in: netdevsim psample
| [    8.906152] Tainted: [W]=WARN
[    8.906172] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.906208] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.906236] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.906333] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    8.906363] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    8.906396] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042feb000
[    8.906439] RBP: 0000000000000000 R08: ff198b2044c91810 R09: ff198b204e832030
[    8.906484] R10: ff198b204cf6c120 R11: fefefefefefefeff R12: 0000000000000000
[    8.906524] R13: 0000000000000010 R14: ff198b204cf6c000 R15: ff198b2042feb000
[    8.906570] FS:  00007f194feca400(0000) GS:ff198b20bfac8000(0000) knlGS:0000000000000000
[    8.906613] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.906648] CR2: 00007fd7c0cf4d80 CR3: 00000000064db001 CR4: 0000000000771ef0
[    8.906681] PKRU: 55555554
[    8.906696] Call Trace:
[    8.906712]  <TASK>
[    8.906727]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    8.906750]  register_netdevice (net/core/dev.c:11488)
[    8.906772] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    8.906804] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    8.906835] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    8.906865]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    8.906883]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    8.906910]  __driver_probe_device (drivers/base/dd.c:871)
[    8.906938]  driver_probe_device (drivers/base/dd.c:901)
[    8.906959]  __device_attach_driver (drivers/base/dd.c:1029)
[    8.906984]  bus_for_each_drv (drivers/base/bus.c:500)
[    8.907006]  __device_attach (drivers/base/dd.c:1101)
[    8.907026]  device_initial_probe (drivers/base/dd.c:1156)
[    8.907048]  bus_probe_device (drivers/base/bus.c:613)
[    8.907072]  device_add (drivers/base/core.c:3706)
[    8.907092] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    8.907122]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    8.907152]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    8.907175]  ksys_write (fs/read_write.c:740)
[    8.907197]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.907219]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.907252] RIP: 0033:0x7f195005208e
[    8.907275] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    8.907376] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    8.907418] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    8.907462] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    8.907506] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    8.907544] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    8.907588] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    9.041986] ------------[ cut here ]------------
| [    9.042038] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: python3/254
| [    9.042091] Modules linked in: netdevsim psample
| [    9.042177] Tainted: [W]=WARN
[    9.042196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.042233] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.042262] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.042350] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    9.042377] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    9.042418] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2041dfaf00
[    9.042459] RBP: 0000000000000000 R08: ff198b204cf33910 R09: ff198b204e830030
[    9.042494] R10: ff198b204cf6a120 R11: fefefefefefefeff R12: 0000000000000000
[    9.042530] R13: 0000000000000010 R14: ff198b204cf6a000 R15: ff198b2041dfaf00
[    9.042570] FS:  00007f194feca400(0000) GS:ff198b20bfac8000(0000) knlGS:0000000000000000
[    9.042616] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.042650] CR2: 00007fd7c16f1580 CR3: 00000000064db001 CR4: 0000000000771ef0
[    9.042688] PKRU: 55555554
[    9.042704] Call Trace:
[    9.042717]  <TASK>
[    9.042732]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    9.042754]  register_netdevice (net/core/dev.c:11488)
[    9.042775] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.042803] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.042828] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    9.042855]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    9.042878]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    9.042905]  __driver_probe_device (drivers/base/dd.c:871)
[    9.042931]  driver_probe_device (drivers/base/dd.c:901)
[    9.042952]  __device_attach_driver (drivers/base/dd.c:1029)
[    9.042978]  bus_for_each_drv (drivers/base/bus.c:500)
[    9.042999]  __device_attach (drivers/base/dd.c:1101)
[    9.043018]  device_initial_probe (drivers/base/dd.c:1156)
[    9.043042]  bus_probe_device (drivers/base/bus.c:613)
[    9.043062]  device_add (drivers/base/core.c:3706)
[    9.043082] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    9.043110]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.043141]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    9.043163]  ksys_write (fs/read_write.c:740)
[    9.043188]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.043208]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.043236] RIP: 0033:0x7f195005208e
[    9.043256] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.043340] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.043378] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    9.043420] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    9.043459] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    9.043501] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    9.043540] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    9.181910] ------------[ cut here ]------------
| [    9.181972] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: python3/254
| [    9.182043] Modules linked in: netdevsim psample
| [    9.182138] Tainted: [W]=WARN
[    9.182164] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.182204] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.182236] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.182339] RSP: 0018:ff60b5ce8041f9d0 EFLAGS: 00010286
[    9.182368] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    9.182413] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2043288600
[    9.182459] RBP: 0000000000000000 R08: ff198b204ceebe50 R09: ff198b204e836030
[    9.182503] R10: ff198b204cf68120 R11: fefefefefefefeff R12: 0000000000000000
[    9.182539] R13: 0000000000000010 R14: ff198b204cf68000 R15: ff198b2043288600
[    9.182579] FS:  00007f194feca400(0000) GS:ff198b20bfac8000(0000) knlGS:0000000000000000
[    9.182629] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.182667] CR2: 00007f5c7c4df8f4 CR3: 00000000064db002 CR4: 0000000000771ef0
[    9.182711] PKRU: 55555554
[    9.182725] Call Trace:
[    9.182743]  <TASK>
[    9.182762]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    9.182784]  register_netdevice (net/core/dev.c:11488)
[    9.182811] nsim_create (drivers/net/netdevsim/netdev.c:1069 drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.182846] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.182878] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    9.182908]  really_probe (drivers/base/dd.c:631 drivers/base/dd.c:709)
[    9.182932]  ? driver_probe_device (./include/linux/list.h:164 (discriminator 3))
[    9.182963]  __driver_probe_device (drivers/base/dd.c:871)
[    9.182989]  driver_probe_device (drivers/base/dd.c:901)
[    9.183015]  __device_attach_driver (drivers/base/dd.c:1029)
[    9.183043]  bus_for_each_drv (drivers/base/bus.c:500)
[    9.183065]  __device_attach (drivers/base/dd.c:1101)
[    9.183084]  device_initial_probe (drivers/base/dd.c:1156)
[    9.183108]  bus_probe_device (drivers/base/bus.c:613)
[    9.183134]  device_add (drivers/base/core.c:3706)
[    9.183159] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    9.183190]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.183220]  vfs_write (fs/read_write.c:595 fs/read_write.c:688)
[    9.183244]  ksys_write (fs/read_write.c:740)
[    9.183266]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.183294]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.183326] RIP: 0033:0x7f195005208e
[    9.183348] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.183448] RSP: 002b:00007ffc89135cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.183496] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f195005208e
[    9.183536] RDX: 0000000000000009 RSI: 00005555dbb99fd0 RDI: 000000000000000a
[    9.183579] RBP: 00007ffc89135cc0 R08: 0000000000000000 R09: 0000000000000000
[    9.183620] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f194feca390
[    9.183663] R13: 00005555dbb99fd0 R14: 000000000000000a R15: 00007f194fe590d0
| [    9.446797] ------------[ cut here ]------------
| [    9.446852] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 0/12
| [    9.446911] Modules linked in: netdevsim psample
| [    9.446992] Tainted: [W]=WARN
[    9.447013] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.447048] Workqueue: netns cleanup_net
[    9.447074] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.447101] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.447189] RSP: 0018:ff60b5ce80067ce8 EFLAGS: 00010286
[    9.447217] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    9.447255] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ff6d00
[    9.447304] RBP: 0000000000000000 R08: ff198b204194ac50 R09: ff198b204cc55830
[    9.447344] R10: ff198b2041180120 R11: fefefefefefefeff R12: 0000000000000000
[    9.447379] R13: 0000000000000011 R14: ff198b2041180000 R15: ff198b2042ff6d00
[    9.447418] FS:  0000000000000000(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    9.447460] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.447492] CR2: 00007f5d09b508f4 CR3: 00000000064db005 CR4: 0000000000771ef0
[    9.447529] PKRU: 55555554
[    9.447544] Call Trace:
[    9.447561]  <TASK>
[    9.447577]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.447610]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    9.447633]  cleanup_net (net/core/net_namespace.c:702)
[    9.447658]  process_one_work (kernel/workqueue.c:3314)
[    9.447685]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.447707]  ? rescuer_thread (kernel/workqueue.c:3672)
[    9.447727]  kthread (kernel/kthread.c:436)
[    9.447748]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    9.447769]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.447792]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    9.447813]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.447955] ------------[ cut here ]------------
| [    9.447987] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 0/12
| [    9.448042] Modules linked in: netdevsim psample
| [    9.448126] Tainted: [W]=WARN
[    9.448152] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.448182] Workqueue: netns cleanup_net
[    9.448204] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.448232] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.448330] RSP: 0018:ff60b5ce80067ce8 EFLAGS: 00010286
[    9.448355] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    9.448393] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ff6d00
[    9.448431] RBP: 0000000000000000 R08: ff198b2044cc5ed0 R09: ff198b2044ebc830
[    9.448471] R10: ff198b2044ea9120 R11: fefefefefefefeff R12: 0000000000000000
[    9.448513] R13: 0000000000000011 R14: ff198b2044ea9000 R15: ff198b2042ff6d00
[    9.448555] FS:  0000000000000000(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    9.448593] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.448628] CR2: 00007f5d09b508f4 CR3: 00000000064db005 CR4: 0000000000771ef0
[    9.448668] PKRU: 55555554
[    9.448681] Call Trace:
[    9.448694]  <TASK>
[    9.448713]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.448738]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    9.448758]  cleanup_net (net/core/net_namespace.c:702)
[    9.448781]  process_one_work (kernel/workqueue.c:3314)
[    9.448800]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.448820]  ? rescuer_thread (kernel/workqueue.c:3672)
[    9.448840]  kthread (kernel/kthread.c:436)
[    9.448860]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    9.448879]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.448900]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    9.448918]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.449029] ------------[ cut here ]------------
| [    9.449057] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 0/12
| [    9.449115] Modules linked in: netdevsim psample
| [    9.449198] Tainted: [W]=WARN
[    9.449220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.449259] Workqueue: netns cleanup_net
[    9.449285] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.449313] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.449397] RSP: 0018:ff60b5ce80067ce8 EFLAGS: 00010286
[    9.449421] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    9.449465] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ff6d00
[    9.449501] RBP: 0000000000000000 R08: ff198b2041951ed0 R09: ff198b2044ebf834
[    9.449542] R10: ff198b2042f04120 R11: fefefefefefefeff R12: 0000000000000000
[    9.449582] R13: 0000000000000011 R14: ff198b2042f04000 R15: ff198b2042ff6d00
[    9.449629] FS:  0000000000000000(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    9.449673] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.449704] CR2: 00007f5d09b508f4 CR3: 00000000064db005 CR4: 0000000000771ef0
[    9.449745] PKRU: 55555554
[    9.449760] Call Trace:
[    9.449775]  <TASK>
[    9.449789]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.449814]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    9.449834]  cleanup_net (net/core/net_namespace.c:702)
[    9.449852]  process_one_work (kernel/workqueue.c:3314)
[    9.449876]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.449896]  ? rescuer_thread (kernel/workqueue.c:3672)
[    9.449914]  kthread (kernel/kthread.c:436)
[    9.449935]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    9.449955]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.449983]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    9.450003]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.450108] ------------[ cut here ]------------
| [    9.450133] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 0/12
| [    9.450183] Modules linked in: netdevsim psample
| [    9.450261] Tainted: [W]=WARN
[    9.450284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.450318] Workqueue: netns cleanup_net
[    9.450340] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.450368] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.450453] RSP: 0018:ff60b5ce80067ce8 EFLAGS: 00010286
[    9.450479] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    9.450520] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ff6d00
[    9.450558] RBP: 0000000000000000 R08: ff198b2041951d10 R09: ff198b2044ea2030
[    9.450596] R10: ff198b2044eaa120 R11: fefefefefefefeff R12: 0000000000000000
[    9.450641] R13: 0000000000000011 R14: ff198b2044eaa000 R15: ff198b2042ff6d00
[    9.450684] FS:  0000000000000000(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    9.450722] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.450756] CR2: 00007f5d09b508f4 CR3: 00000000064db005 CR4: 0000000000771ef0
[    9.450795] PKRU: 55555554
[    9.450809] Call Trace:
[    9.450825]  <TASK>
[    9.450840]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.450865]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    9.450885]  cleanup_net (net/core/net_namespace.c:702)
[    9.450907]  process_one_work (kernel/workqueue.c:3314)
[    9.450926]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.450945]  ? rescuer_thread (kernel/workqueue.c:3672)
[    9.450967]  kthread (kernel/kthread.c:436)
[    9.450988]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    9.451009]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.451030]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    9.451051]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.451147] ------------[ cut here ]------------
| [    9.451174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 0/12
| [    9.451228] Modules linked in: netdevsim psample
| [    9.451315] Tainted: [W]=WARN
[    9.451336] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.451367] Workqueue: netns cleanup_net
[    9.451388] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.451412] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.451498] RSP: 0018:ff60b5ce80067ce8 EFLAGS: 00010286
[    9.451530] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    9.451577] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ff6d00
[    9.451620] RBP: 0000000000000000 R08: ff198b2041951f10 R09: ff198b2044ea6030
[    9.451657] R10: ff198b2044e9d120 R11: fefefefefefefeff R12: 0000000000000000
[    9.451696] R13: 0000000000000011 R14: ff198b2044e9d000 R15: ff198b2042ff6d00
[    9.451736] FS:  0000000000000000(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    9.451773] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.451806] CR2: 00007f5d09b508f4 CR3: 00000000064db005 CR4: 0000000000771ef0
[    9.451851] PKRU: 55555554
[    9.451863] Call Trace:
[    9.451878]  <TASK>
[    9.451895]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.451922]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[    9.451944]  cleanup_net (net/core/net_namespace.c:702)
[    9.451965]  process_one_work (kernel/workqueue.c:3314)
[    9.451986]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.452007]  ? rescuer_thread (kernel/workqueue.c:3672)
[    9.452027]  kthread (kernel/kthread.c:436)
[    9.452048]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    9.452071]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.452094]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    9.452115]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.459326] ------------[ cut here ]------------
| [    9.460044] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 0/12
| [    9.460109] Modules linked in: netdevsim psample
| [    9.460190] Tainted: [W]=WARN
[    9.460211] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.460245] Workqueue: netns cleanup_net
[    9.460269] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.460306] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.460393] RSP: 0018:ff60b5ce80067c08 EFLAGS: 00010286
[    9.460420] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[    9.460456] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ff6d00
[    9.460499] RBP: 0000000000000000 R08: ff198b2044c54190 R09: ff198b2044e9d02c
[    9.460538] R10: ff198b2044e98120 R11: fefefefefefefeff R12: 0000000000000000
[    9.460576] R13: 0000000000000010 R14: ff198b2044e98000 R15: ff198b2042ff6d00
[    9.460624] FS:  0000000000000000(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    9.460664] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.460702] CR2: 00007f6055350f98 CR3: 0000000035247004 CR4: 0000000000771ef0
[    9.460743] PKRU: 55555554
[    9.460757] Call Trace:
[    9.460773]  <TASK>
[    9.460785]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    9.460810]  netif_close_many (net/core/dev.c:1804)
[    9.460832]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[    9.460857]  ? __wake_up (./include/linux/spinlock.h:408 (discriminator 3) kernel/sched/wait.c:127 (discriminator 3) kernel/sched/wait.c:146 (discriminator 3))
[    9.460880]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    9.460905]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    9.460925]  cleanup_net (net/core/net_namespace.c:702)
[    9.460946]  process_one_work (kernel/workqueue.c:3314)
[    9.460967]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.460988]  ? rescuer_thread (kernel/workqueue.c:3672)
[    9.461007]  kthread (kernel/kthread.c:436)
[    9.461027]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    9.461047]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.461066]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    9.461090]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.462479] ------------[ cut here ]------------
| [    9.462517] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 0/12
| [    9.462572] Modules linked in: netdevsim psample
| [    9.462662] Tainted: [W]=WARN
[    9.462683] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.462718] Workqueue: netns cleanup_net
[    9.462743] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.462772] 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 86 9c 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 86 9c fb ff       	call   0xfffffffffffb9cc2
  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 86 9c fb ff       	call   0xfffffffffffb9c98
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.462858] RSP: 0018:ff60b5ce80067c78 EFLAGS: 00010286
[    9.462884] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    9.462920] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff198b2042ff6d00
[    9.462957] RBP: 0000000000000000 R08: ff198b2044c54190 R09: ff198b2044ea582c
[    9.463000] R10: ff198b2044e98120 R11: fefefefefefefeff R12: 0000000000000000
[    9.463037] R13: 0000000000000011 R14: ff198b2044e98000 R15: ff198b2042ff6d00
[    9.463081] FS:  0000000000000000(0000) GS:ff198b20bfa48000(0000) knlGS:0000000000000000
[    9.463119] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.463152] CR2: 00007f3ae8e4bf98 CR3: 0000000035247005 CR4: 0000000000771ef0
[    9.463189] PKRU: 55555554
[    9.463203] Call Trace:
[    9.463216]  <TASK>
[    9.463229]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.463257]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    9.463288]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    9.463310]  cleanup_net (net/core/net_namespace.c:702)
[    9.463331]  process_one_work (kernel/workqueue.c:3314)
[    9.463352]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.463376]  ? rescuer_thread (kernel/workqueue.c:3672)
[    9.463397]  kthread (kernel/kthread.c:436)
[    9.463423]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[    9.463443]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.463464]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))


Finger prints:
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:default_device_exit_batch:ops_undo_list:cleanup_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:rtnl_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:vti6_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:__ip_tunnel_create:ip_tunnel_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:ip6_tnl_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:nsim_create:__nsim_dev_port_add
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:netkit_new_link
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:ops_undo_list:cleanup_net:process_one_work
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:netif_change_flags:rtnl_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:netif_change_flags:dev_change_flags
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:sit_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:default_device_exit_batch