======================================
| xx__-> [    2.575983] ------------[ cut here ]------------
| [    2.576077] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: unshare/161
| [    2.576196] Modules linked in:
| [    2.576401] Tainted: [W]=WARN
[    2.576468] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.576553] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.576623] Code: 80 00 00 00 e8 59 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 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   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 76 b2 fb ff       	call   0xfffffffffffbb2b2
  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 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.576787] RSP: 0018:ff607616803e7cc8 EFLAGS: 00010286
[    2.576853] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.576932] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1e9866830f6400
[    2.577012] RBP: 0000000000000000 R08: ff1e986683233b50 R09: ff1e98668319a02c
[    2.577090] R10: ff1e9866819bd118 R11: fefefefefefefeff R12: 0000000000000000
[    2.577182] R13: 0000000000000010 R14: ff1e9866819bd000 R15: ff1e9866830f6400
[    2.577267] FS:  00007f49b09e1740(0000) GS:ff1e986733b96000(0000) knlGS:0000000000000000
[    2.577349] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.577422] CR2: 00005591a8880310 CR3: 0000000004ce4001 CR4: 0000000000771ef0
[    2.577505] PKRU: 55555554
[    2.577557] Call Trace:
[    2.577617]  <TASK>
[    2.577670]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.577737]  register_netdevice (net/core/dev.c:11488)
[    2.577798]  register_netdev (net/core/dev.c:11552)
[    2.577858]  loopback_net_init (drivers/net/loopback.c:218)
[    2.577921]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.577989]  ops_init (net/core/net_namespace.c:137)
[    2.578051]  setup_net (net/core/net_namespace.c:446)
[    2.578111]  copy_net_ns (net/core/net_namespace.c:579)
[    2.578179]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.578268]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.578338]  ksys_unshare (kernel/fork.c:3243)
[    2.578401]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.578462]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.578525]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.578593] RIP: 0033:0x7f49b0adcbcb
[    2.578653] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.578801] RSP: 002b:00007ffda21e3208 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[    2.578882] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f49b0adcbcb
[    2.578964] RDX: 0000000000000000 RSI: 00007ffda21e2f70 RDI: 0000000040000000
[    2.579044] RBP: 00007ffda21e3590 R08: 00007ffda21e3160 R09: 0000000000000000
[    2.579125] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[    2.579214] R13: 0000000000000000 R14: 00000000ffffffff R15: 00005591a8883b68
| [    2.583512] ------------[ cut here ]------------
| [    2.583604] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/161
| [    2.583715] Modules linked in:
| [    2.583885] Tainted: [W]=WARN
[    2.583942] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.584019] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.584087] Code: 80 00 00 00 e8 59 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 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   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 76 b2 fb ff       	call   0xfffffffffffbb2b2
  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 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.584291] RSP: 0018:ff607616803e7d68 EFLAGS: 00010286
[    2.584358] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.584439] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1e9866830f6400
[    2.584520] RBP: 0000000000000000 R08: ff1e986683021c10 R09: ff1e98668319f030
[    2.584601] R10: ff1e986684eb0118 R11: fefefefefefefeff R12: 0000000000000000
[    2.584686] R13: 0000000000000010 R14: ff1e986684eb0000 R15: ff1e9866830f6400
[    2.584776] FS:  000000000e504400(0000) GS:ff1e986733b96000(0000) knlGS:0000000000000000
[    2.584898] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.584974] CR2: 00007f50bba8d000 CR3: 0000000003122002 CR4: 0000000000771ef0
[    2.585059] PKRU: 55555554
[    2.585110] Call Trace:
[    2.585170]  <TASK>
[    2.585223]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.585286]  register_netdevice (net/core/dev.c:11488)
[    2.585349]  __tun_chr_ioctl (drivers/net/tun.c:2876 drivers/net/tun.c:3157)
[    2.585412]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[    2.585476]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[    2.585539]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.585601]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.585670] RIP: 0033:0x47cc8d
[    2.585736] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
All code
========
   0:	04 25                	add    $0x25,%al
   2:	28 00                	sub    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
   a:	31 c0                	xor    %eax,%eax
   c:	48 8d 45 10          	lea    0x10(%rbp),%rax
  10:	c7 45 b0 10 00 00 00 	movl   $0x10,-0x50(%rbp)
  17:	48 89 45 b8          	mov    %rax,-0x48(%rbp)
  1b:	48 8d 45 d0          	lea    -0x30(%rbp),%rax
  1f:	48 89 45 c0          	mov    %rax,-0x40(%rbp)
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	89 c2                	mov    %eax,%edx		<-- trapping instruction
  2c:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
  31:	77 1a                	ja     0x4d
  33:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
  37:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  3e:	00 00 

Code starting with the faulting instruction
===========================================
   0:	89 c2                	mov    %eax,%edx
   2:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
   7:	77 1a                	ja     0x23
   9:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
   d:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  14:	00 00 
[    2.585876] RSP: 002b:00007ffe00b741c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.585959] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.586043] RDX: 00007ffe00b74240 RSI: 00000000400454ca RDI: 0000000000000005
[    2.586123] RBP: 00007ffe00b74210 R08: 0000000000000000 R09: 0000000000000000
[    2.586212] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe00b74718
[    2.586295] R13: 00007ffe00b74798 R14: 0000000000000002 R15: 0000000000543540
| [    2.586522] ------------[ cut here ]------------
| [    2.586609] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/161
| [    2.586705] Modules linked in:
| [    2.586862] Tainted: [W]=WARN
[    2.586921] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.586996] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.587064] Code: 80 00 00 00 e8 59 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 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   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 76 b2 fb ff       	call   0xfffffffffffbb2b2
  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 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.587214] RSP: 0018:ff607616803e7d60 EFLAGS: 00010286
[    2.587280] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[    2.587360] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1e9866830f6400
[    2.587445] RBP: 0000000000000002 R08: ff1e986683021c10 R09: ff1e98668319f030
[    2.587527] R10: ff1e986684eb0118 R11: fefefefefefefeff R12: 0000000000000000
[    2.587610] R13: 0000000000000010 R14: ff1e986684eb0000 R15: ff1e9866830f6400
[    2.587703] FS:  000000000e504400(0000) GS:ff1e986733b96000(0000) knlGS:0000000000000000
[    2.587784] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.587859] CR2: 00007f50bba8d000 CR3: 0000000003122002 CR4: 0000000000771ef0
[    2.587941] PKRU: 55555554
[    2.587992] Call Trace:
[    2.588062]  <TASK>
[    2.588114]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[    2.588185]  notifier_call_chain (kernel/notifier.c:85)
[    2.588249]  netdev_update_features (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:1590 net/core/dev.c:11099 net/core/dev.c:11096)
[    2.588319]  __tun_chr_ioctl (drivers/net/tun.c:2963 drivers/net/tun.c:3285)
[    2.588380]  ? file_init_path (./include/linux/pagemap.h:126 fs/file_table.c:368)
[    2.588442]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[    2.588505]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.588567]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.588635] RIP: 0033:0x47cc8d
[    2.588705] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
All code
========
   0:	04 25                	add    $0x25,%al
   2:	28 00                	sub    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
   a:	31 c0                	xor    %eax,%eax
   c:	48 8d 45 10          	lea    0x10(%rbp),%rax
  10:	c7 45 b0 10 00 00 00 	movl   $0x10,-0x50(%rbp)
  17:	48 89 45 b8          	mov    %rax,-0x48(%rbp)
  1b:	48 8d 45 d0          	lea    -0x30(%rbp),%rax
  1f:	48 89 45 c0          	mov    %rax,-0x40(%rbp)
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	89 c2                	mov    %eax,%edx		<-- trapping instruction
  2c:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
  31:	77 1a                	ja     0x4d
  33:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
  37:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  3e:	00 00 

Code starting with the faulting instruction
===========================================
   0:	89 c2                	mov    %eax,%edx
   2:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
   7:	77 1a                	ja     0x23
   9:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
   d:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  14:	00 00 
[    2.588840] RSP: 002b:00007ffe00b74200 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.588922] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.589004] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[    2.589087] RBP: 00007ffe00b74250 R08: 0000000000000000 R09: 0000000000000000
[    2.589176] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe00b74718
[    2.589258] R13: 00007ffe00b74798 R14: 0000000000000002 R15: 0000000000543540
| [    2.589482] ------------[ cut here ]------------
| [    2.589549] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/161
| [    2.589638] Modules linked in:
| [    2.589800] Tainted: [W]=WARN
[    2.589860] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.589932] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.589999] Code: 80 00 00 00 e8 59 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 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   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 76 b2 fb ff       	call   0xfffffffffffbb2b2
  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 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.590137] RSP: 0018:ff607616803e7c10 EFLAGS: 00010286
[    2.590209] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.590291] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1e9866830f6400
[    2.590373] RBP: 0000000000000000 R08: ff1e986683021c10 R09: ff1e98668319c030
[    2.590458] R10: ff1e986684eb0118 R11: fefefefefefefeff R12: 0000000000000000
[    2.590569] R13: 0000000000000010 R14: ff1e986684eb0000 R15: ff1e9866830f6400
[    2.590653] FS:  000000000e504400(0000) GS:ff1e986733b96000(0000) knlGS:0000000000000000
[    2.590743] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.590817] CR2: 00007f50bba8d000 CR3: 0000000003122002 CR4: 0000000000771ef0
[    2.590899] PKRU: 55555554
[    2.590951] Call Trace:
[    2.591003]  <TASK>
[    2.591055]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.591116]  __dev_notify_flags (net/core/dev.c:9787)
[    2.591186]  netif_change_flags (net/core/dev.c:9820)
[    2.591248]  dev_change_flags (net/core/dev_api.c:68)
[    2.591309]  devinet_ioctl (net/ipv4/devinet.c:1199)
[    2.591399]  inet_ioctl (net/ipv4/af_inet.c:1011)
[    2.591462]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    2.591530]  sock_do_ioctl (net/socket.c:1313)
[    2.591598]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[    2.591663]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.591735]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.591805] RIP: 0033:0x47cc8d
[    2.591866] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
All code
========
   0:	04 25                	add    $0x25,%al
   2:	28 00                	sub    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
   a:	31 c0                	xor    %eax,%eax
   c:	48 8d 45 10          	lea    0x10(%rbp),%rax
  10:	c7 45 b0 10 00 00 00 	movl   $0x10,-0x50(%rbp)
  17:	48 89 45 b8          	mov    %rax,-0x48(%rbp)
  1b:	48 8d 45 d0          	lea    -0x30(%rbp),%rax
  1f:	48 89 45 c0          	mov    %rax,-0x40(%rbp)
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	89 c2                	mov    %eax,%edx		<-- trapping instruction
  2c:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
  31:	77 1a                	ja     0x4d
  33:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
  37:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  3e:	00 00 

Code starting with the faulting instruction
===========================================
   0:	89 c2                	mov    %eax,%edx
   2:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
   7:	77 1a                	ja     0x23
   9:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
   d:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  14:	00 00 
[    2.592003] RSP: 002b:00007ffe00b741e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.592086] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.592177] RDX: 00007ffe00b74250 RSI: 0000000000008914 RDI: 0000000000000006
[    2.592263] RBP: 00007ffe00b74230 R08: 0000000000000000 R09: 0000000000000000
[    2.592347] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe00b74718
[    2.592432] R13: 00007ffe00b74798 R14: 0000000000000002 R15: 0000000000543540
| [   47.554924] ------------[ cut here ]------------
| [   47.555121] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/161
| [   47.555229] Modules linked in:
| [   47.555408] Tainted: [W]=WARN
[   47.555471] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.555577] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.555653] Code: 80 00 00 00 e8 59 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 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   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 76 b2 fb ff       	call   0xfffffffffffbb2b2
  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 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.555816] RSP: 0018:ff607616803e7b58 EFLAGS: 00010286
[   47.555884] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[   47.555969] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1e9866830eff00
[   47.556053] RBP: 0000000000000000 R08: ff1e986683021c10 R09: ff1e98668319c030
[   47.556138] R10: ff1e986684eb0118 R11: fefefefefefefeff R12: 0000000000000000
[   47.556219] R13: 0000000000000010 R14: ff1e986684eb0000 R15: ff1e9866830eff00
[   47.556308] FS:  0000000000000000(0000) GS:ff1e986733b96000(0000) knlGS:0000000000000000
[   47.556397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.556474] CR2: 000055e71768ec90 CR3: 0000000003263001 CR4: 0000000000771ef0
[   47.556564] PKRU: 55555554
[   47.556619] Call Trace:
[   47.556677]  <TASK>
[   47.556740]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   47.556802]  netif_close_many (net/core/dev.c:1804)
[   47.556870]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   47.556945]  ? __queue_work (kernel/workqueue.c:2401)
[   47.557024]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[   47.557098]  __tun_detach (./include/linux/netdevice.h:3455 drivers/net/tun.c:628)
[   47.557170]  tun_chr_close (drivers/net/tun.c:644 drivers/net/tun.c:3505)
[   47.557234]  __fput (fs/file_table.c:510)
[   47.557304]  task_work_run (kernel/task_work.c:233)
[   47.557378]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:976)
[   47.557447]  ? netlink_recvmsg (net/netlink/af_netlink.c:1973)
[   47.557514]  do_group_exit (kernel/exit.c:1119)
[   47.557582]  get_signal (kernel/signal.c:3037)
[   47.557651]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[   47.557731]  exit_to_user_mode_loop (kernel/entry/common.c:64 kernel/entry/common.c:98)
[   47.557807]  do_syscall_64 (./include/linux/irq-entry-common.h:207 ./include/linux/irq-entry-common.h:230 ./include/linux/entry-common.h:318 arch/x86/entry/syscall_64.c:100)
[   47.557878]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.557949] RIP: 0033:0x4c2d9e
[   47.558012] Code: Unable to access opcode bytes at 0x4c2d74.

Code starting with the faulting instruction
===========================================
[   47.558088] RSP: 002b:00007ffe00b73b70 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[   47.558188] RAX: 0000000000000014 RBX: 00007ffe00b73c00 RCX: 00000000004c2d9e
[   47.558270] RDX: 0000000000000000 RSI: 00007ffe00b73c10 RDI: 0000000000000007
[   47.558355] RBP: 00007ffe00b73b80 R08: 0000000000000000 R09: 0000000000000000
[   47.558449] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe00b73bf4
[   47.558533] R13: 0000000000000050 R14: 00007ffe00b73d40 R15: 0000000000000000
| [   47.559102] ------------[ cut here ]------------
| [   47.559193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/161
| [   47.559340] Modules linked in:
| [   47.559595] Tainted: [W]=WARN
[   47.559683] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.559789] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.559896] Code: 80 00 00 00 e8 59 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 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   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 76 b2 fb ff       	call   0xfffffffffffbb2b2
  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 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.560131] RSP: 0018:ff607616803e7bc8 EFLAGS: 00010286
[   47.560259] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.560372] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1e9866830eff00
[   47.560618] RBP: 0000000000000000 R08: ff1e986683021c10 R09: ff1e986684e83830
[   47.560732] R10: ff1e986684eb0118 R11: fefefefefefefeff R12: 0000000000000000
[   47.560817] R13: 0000000000000011 R14: ff1e986684eb0000 R15: ff1e9866830eff00
[   47.560912] FS:  0000000000000000(0000) GS:ff1e986733b96000(0000) knlGS:0000000000000000
[   47.560998] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.561078] CR2: 000055e71768ec90 CR3: 0000000037e42005 CR4: 0000000000771ef0
[   47.561156] PKRU: 55555554
[   47.561215] Call Trace:
[   47.561270]  <TASK>
[   47.561328]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.561409]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[   47.561483]  __tun_detach (./include/linux/netdevice.h:3455 drivers/net/tun.c:628)
[   47.561552]  tun_chr_close (drivers/net/tun.c:644 drivers/net/tun.c:3505)
[   47.561620]  __fput (fs/file_table.c:510)
[   47.561688]  task_work_run (kernel/task_work.c:233)
[   47.562042]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:976)
[   47.562105]  ? netlink_recvmsg (net/netlink/af_netlink.c:1973)
[   47.562176]  do_group_exit (kernel/exit.c:1119)
[   47.562267]  get_signal (kernel/signal.c:3037)
[   47.562334]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[   47.562418]  exit_to_user_mode_loop (kernel/entry/common.c:64 kernel/entry/common.c:98)
[   47.562496]  do_syscall_64 (./include/linux/irq-entry-common.h:207 ./include/linux/irq-entry-common.h:230 ./include/linux/entry-common.h:318 arch/x86/entry/syscall_64.c:100)
[   47.562565]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.562638] RIP: 0033:0x4c2d9e
[   47.562710] Code: Unable to access opcode bytes at 0x4c2d74.

Code starting with the faulting instruction
===========================================
[   47.562787] RSP: 002b:00007ffe00b73b70 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[   47.562875] RAX: 0000000000000014 RBX: 00007ffe00b73c00 RCX: 00000000004c2d9e
[   47.562958] RDX: 0000000000000000 RSI: 00007ffe00b73c10 RDI: 0000000000000007
[   47.563043] RBP: 00007ffe00b73b80 R08: 0000000000000000 R09: 0000000000000000
[   47.563128] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe00b73bf4
[   47.563211] R13: 0000000000000050 R14: 00007ffe00b73d40 R15: 0000000000000000
| [   47.570796] ------------[ cut here ]------------
| [   47.570849] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [   47.570918] Modules linked in:
| [   47.571011] Tainted: [W]=WARN
[   47.571035] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.571071] Workqueue: netns cleanup_net
[   47.571097] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.571129] Code: 80 00 00 00 e8 59 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 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   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 76 b2 fb ff       	call   0xfffffffffffbb2b2
  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 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.571264] RSP: 0018:ff6076168023fc78 EFLAGS: 00010286
[   47.571302] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.571353] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1e98668310f100
[   47.571427] RBP: 0000000000000000 R08: ff1e986683233b50 R09: ff1e986684d5a82c
[   47.571470] R10: ff1e9866819bd118 R11: fefefefefefefeff R12: 0000000000000000
[   47.571558] R13: 0000000000000011 R14: ff1e9866819bd000 R15: ff1e98668310f100
[   47.571603] FS:  0000000000000000(0000) GS:ff1e986733a96000(0000) knlGS:0000000000000000
[   47.571656] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.571718] CR2: 00007f96d81ebf98 CR3: 0000000037e42002 CR4: 0000000000771ef0
[   47.571780] PKRU: 55555554
[   47.571801] Call Trace:
[   47.571816]  <TASK>
[   47.571830]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.571862]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   47.571891]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   47.571917]  cleanup_net (net/core/net_namespace.c:702)
[   47.571940]  process_one_work (kernel/workqueue.c:3314)
[   47.571968]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.571992]  ? rescuer_thread (kernel/workqueue.c:3672)
[   47.572016]  kthread (kernel/kthread.c:436)
[   47.572036]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   47.572057]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.572080]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))


Finger prints:
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:__tun_chr_ioctl:__x64_sys_ioctl
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:unregister_netdevice_queue
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:unregister_netdevice_queue:__tun_detach:tun_chr_close
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:default_device_exit_batch:ops_undo_list:cleanup_net
rtmsg_ifinfo_build_skb:rtnetlink_event:notifier_call_chain:netdev_update_features:__tun_chr_ioctl