======================================
| xx__-> [  138.987055] ------------[ cut here ]------------
| [  138.987111] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: unshare/292
| [  138.987172] Modules linked in:
| [  138.987268] Tainted: [W]=WARN
[  138.987293] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  138.987331] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  138.987364] 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
[  138.987460] RSP: 0018:ff4793520027bcc8 EFLAGS: 00010286
[  138.987497] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  138.987544] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff201fa742faa100
[  138.987595] RBP: 0000000000000000 R08: ff201fa743036890 R09: ff201fa7430c602c
[  138.987641] R10: ff201fa742ea5118 R11: fefefefefefefeff R12: 0000000000000000
[  138.987684] R13: 0000000000000010 R14: ff201fa742ea5000 R15: ff201fa742faa100
[  138.987733] FS:  00007f4eb07a7740(0000) GS:ff201fa7e8896000(0000) knlGS:0000000000000000
[  138.987787] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  138.987827] CR2: 00005610e0ab9008 CR3: 00000000045a0003 CR4: 0000000000771ef0
[  138.987866] PKRU: 55555554
[  138.987883] Call Trace:
[  138.987902]  <TASK>
[  138.987919]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[  138.987945]  register_netdevice (net/core/dev.c:11488)
[  138.987968]  register_netdev (net/core/dev.c:11552)
[  138.987993]  loopback_net_init (drivers/net/loopback.c:218)
[  138.988019]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[  138.988051]  ops_init (net/core/net_namespace.c:137)
[  138.988076]  setup_net (net/core/net_namespace.c:446)
[  138.988099]  copy_net_ns (net/core/net_namespace.c:579)
[  138.988121]  create_new_namespaces (kernel/nsproxy.c:132)
[  138.988157]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[  138.988187]  ksys_unshare (kernel/fork.c:3243)
[  138.988212]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[  138.988237]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  138.988264]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  138.988290] RIP: 0033:0x7f4eb08a2bcb
[  138.988317] 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
[  138.988425] RSP: 002b:00007ffc1511b1b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[  138.988469] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4eb08a2bcb
[  138.988521] RDX: 0000000000000000 RSI: 00007ffc1511af20 RDI: 0000000040000000
[  138.988567] RBP: 00007ffc1511b540 R08: 00007ffc1511b110 R09: 0000000000000000
[  138.988617] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[  138.988661] R13: 0000000000000000 R14: 00000000ffffffff R15: 00005610cb8d2b68
| [  138.989445] ------------[ cut here ]------------
| [  138.989480] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/292
| [  138.989543] Modules linked in:
| [  138.989624] Tainted: [W]=WARN
[  138.989646] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  138.989681] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  138.989717] 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
[  138.989821] RSP: 0018:ff4793520027bd68 EFLAGS: 00010286
[  138.989850] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  138.989894] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff201fa742faa100
[  138.989945] RBP: 0000000000000000 R08: ff201fa743279510 R09: ff201fa744775030
[  138.989987] R10: ff201fa7433a8118 R11: fefefefefefefeff R12: 0000000000000000
[  138.990036] R13: 0000000000000010 R14: ff201fa7433a8000 R15: ff201fa742faa100
[  138.990086] FS:  000000001d12b400(0000) GS:ff201fa7e8896000(0000) knlGS:0000000000000000
[  138.990136] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  138.990173] CR2: 00007ff46cfc6000 CR3: 000000000452c004 CR4: 0000000000771ef0
[  138.990219] PKRU: 55555554
[  138.990236] Call Trace:
[  138.990253]  <TASK>
[  138.990273]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[  138.990296]  register_netdevice (net/core/dev.c:11488)
[  138.990318]  __tun_chr_ioctl (drivers/net/tun.c:2876 drivers/net/tun.c:3157)
[  138.990342]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[  138.990374]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[  138.990398]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  138.990426]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  138.990461] RIP: 0033:0x47cc8d
[  138.990484] 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 
[  138.990628] RSP: 002b:00007ffc042f0480 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  138.990676] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[  138.990727] RDX: 00007ffc042f0500 RSI: 00000000400454ca RDI: 0000000000000005
[  138.990769] RBP: 00007ffc042f04d0 R08: 0000000000000000 R09: 0000000000000000
[  138.990812] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc042f09d8
[  138.990858] R13: 00007ffc042f0a58 R14: 0000000000000002 R15: 0000000000543540
| [  138.990966] ------------[ cut here ]------------
| [  138.990995] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/292
| [  138.991046] Modules linked in:
| [  138.991125] Tainted: [W]=WARN
[  138.991150] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  138.991188] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  138.991219] 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
[  138.991328] RSP: 0018:ff4793520027bd60 EFLAGS: 00010286
[  138.991359] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[  138.991403] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff201fa742faa100
[  138.991446] RBP: 0000000000000002 R08: ff201fa743279510 R09: ff201fa744775030
[  138.991488] R10: ff201fa7433a8118 R11: fefefefefefefeff R12: 0000000000000000
[  138.991536] R13: 0000000000000010 R14: ff201fa7433a8000 R15: ff201fa742faa100
[  138.991591] FS:  000000001d12b400(0000) GS:ff201fa7e8896000(0000) knlGS:0000000000000000
[  138.991633] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  138.991668] CR2: 00007ff46cfc6000 CR3: 000000000452c004 CR4: 0000000000771ef0
[  138.991710] PKRU: 55555554
[  138.991724] Call Trace:
[  138.991740]  <TASK>
[  138.991756]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[  138.991782]  notifier_call_chain (kernel/notifier.c:85)
[  138.991805]  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)
[  138.991837]  __tun_chr_ioctl (drivers/net/tun.c:2963 drivers/net/tun.c:3285)
[  138.991863]  ? file_init_path (./include/linux/pagemap.h:126 fs/file_table.c:368)
[  138.991885]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[  138.991910]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  138.991934]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  138.991965] RIP: 0033:0x47cc8d
[  138.991989] 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 
[  138.992102] RSP: 002b:00007ffc042f04c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  138.992152] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[  138.992200] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[  138.992244] RBP: 00007ffc042f0510 R08: 0000000000000000 R09: 0000000000000000
[  138.992286] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc042f09d8
[  138.992333] R13: 00007ffc042f0a58 R14: 0000000000000002 R15: 0000000000543540
| [  138.992444] ------------[ cut here ]------------
| [  138.992476] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/292
| [  138.992534] Modules linked in:
| [  138.992620] Tainted: [W]=WARN
[  138.992641] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  138.992673] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  138.992703] 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
[  138.992802] RSP: 0018:ff4793520027bc10 EFLAGS: 00010286
[  138.992832] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[  138.992876] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff201fa742faa100
[  138.992920] RBP: 0000000000000000 R08: ff201fa743279510 R09: ff201fa744771030
[  138.992965] R10: ff201fa7433a8118 R11: fefefefefefefeff R12: 0000000000000000
[  138.993008] R13: 0000000000000010 R14: ff201fa7433a8000 R15: ff201fa742faa100
[  138.993054] FS:  000000001d12b400(0000) GS:ff201fa7e8896000(0000) knlGS:0000000000000000
[  138.993099] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  138.993132] CR2: 00007ff46cfc6000 CR3: 000000000452c004 CR4: 0000000000771ef0
[  138.993177] PKRU: 55555554
[  138.993192] Call Trace:
[  138.993207]  <TASK>
[  138.993222]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[  138.993247]  __dev_notify_flags (net/core/dev.c:9787)
[  138.993272]  netif_change_flags (net/core/dev.c:9820)
[  138.993292]  dev_change_flags (net/core/dev_api.c:68)
[  138.993313]  devinet_ioctl (net/ipv4/devinet.c:1199)
[  138.993338]  inet_ioctl (net/ipv4/af_inet.c:1011)
[  138.993363]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[  138.993385]  sock_do_ioctl (net/socket.c:1313)
[  138.993407]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[  138.993429]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  138.993451]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  138.993483] RIP: 0033:0x47cc8d
[  138.993506] 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 
[  138.993602] RSP: 002b:00007ffc042f04a0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  138.993648] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[  138.993690] RDX: 00007ffc042f0510 RSI: 0000000000008914 RDI: 0000000000000006
[  138.993738] RBP: 00007ffc042f04f0 R08: 0000000000000000 R09: 0000000000000000
[  138.993783] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc042f09d8
[  138.993827] R13: 00007ffc042f0a58 R14: 0000000000000002 R15: 0000000000543540
| [  183.970194] ------------[ cut here ]------------
| [  183.972881] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/292
| [  183.972957] Modules linked in:
| [  183.973088] Tainted: [W]=WARN
[  183.973132] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  183.973186] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  183.973232] 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
[  183.973368] RSP: 0018:ff4793520027bb58 EFLAGS: 00010286
[  183.973426] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[  183.974049] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff201fa74313d700
[  183.974096] RBP: 0000000000000000 R08: ff201fa743279510 R09: ff201fa744771030
[  183.974178] R10: ff201fa7433a8118 R11: fefefefefefefeff R12: 0000000000000000
[  183.974255] R13: 0000000000000010 R14: ff201fa7433a8000 R15: ff201fa74313d700
[  183.974323] FS:  0000000000000000(0000) GS:ff201fa7e8896000(0000) knlGS:0000000000000000
[  183.974391] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  183.974457] CR2: 00007fe675eec6f0 CR3: 000000001b042001 CR4: 0000000000771ef0
[  183.974512] PKRU: 55555554
[  183.974529] Call Trace:
[  183.974546]  <TASK>
[  183.974578]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[  183.974605]  netif_close_many (net/core/dev.c:1804)
[  183.974641]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[  183.974699]  ? __queue_work (kernel/workqueue.c:2401)
[  183.974729]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[  183.974786]  __tun_detach (./include/linux/netdevice.h:3455 drivers/net/tun.c:628)
[  183.974815]  tun_chr_close (drivers/net/tun.c:644 drivers/net/tun.c:3505)
[  183.974848]  __fput (fs/file_table.c:510)
[  183.974892]  task_work_run (kernel/task_work.c:233)
[  183.974918]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:976)
[  183.974941]  ? ___sys_recvmsg (net/socket.c:2961)
[  183.974972]  do_group_exit (kernel/exit.c:1119)
[  183.975009]  get_signal (kernel/signal.c:3037)
[  183.975042]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[  183.975083]  exit_to_user_mode_loop (kernel/entry/common.c:64 kernel/entry/common.c:98)
[  183.975129]  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)
[  183.975164]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  183.975218] RIP: 0033:0x4c2d9e
[  183.975242] Code: Unable to access opcode bytes at 0x4c2d74.

Code starting with the faulting instruction
===========================================
[  183.975287] RSP: 002b:00007ffc042efe30 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[  183.975338] RAX: 0000000000000050 RBX: 00007ffc042efec0 RCX: 00000000004c2d9e
[  183.975396] RDX: 0000000000000000 RSI: 00007ffc042efed0 RDI: 0000000000000007
[  183.975454] RBP: 00007ffc042efe40 R08: 0000000000000000 R09: 0000000000000000
[  183.975502] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc042efeb4
[  183.975549] R13: 00007ffc042f0a58 R14: 00007ffc042f0000 R15: 0000000000543540
| [  183.975935] ------------[ cut here ]------------
| [  183.975967] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/292
| [  183.976048] Modules linked in:
| [  183.977548] Tainted: [W]=WARN
[  183.977578] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  183.977647] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  183.977701] 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
[  183.977868] RSP: 0018:ff4793520027bbc8 EFLAGS: 00010286
[  183.977900] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  183.977963] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff201fa74313d700
[  183.978019] RBP: 0000000000000000 R08: ff201fa743279510 R09: ff201fa7444df830
[  183.978096] R10: ff201fa7433a8118 R11: fefefefefefefeff R12: 0000000000000000
[  183.978156] R13: 0000000000000011 R14: ff201fa7433a8000 R15: ff201fa74313d700
[  183.978224] FS:  0000000000000000(0000) GS:ff201fa7e8896000(0000) knlGS:0000000000000000
[  183.978283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  183.978343] CR2: 00007fe918dd5f98 CR3: 000000001b042001 CR4: 0000000000771ef0
[  183.978382] PKRU: 55555554
[  183.978402] Call Trace:
[  183.978422]  <TASK>
[  183.978445]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  183.978486]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[  183.979864]  __tun_detach (./include/linux/netdevice.h:3455 drivers/net/tun.c:628)
[  183.979895]  tun_chr_close (drivers/net/tun.c:644 drivers/net/tun.c:3505)
[  183.979936]  __fput (fs/file_table.c:510)
[  183.979962]  task_work_run (kernel/task_work.c:233)
[  183.979993]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:976)
[  183.980029]  ? ___sys_recvmsg (net/socket.c:2961)
[  183.980065]  do_group_exit (kernel/exit.c:1119)
[  183.980093]  get_signal (kernel/signal.c:3037)
[  183.980125]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[  183.980174]  exit_to_user_mode_loop (kernel/entry/common.c:64 kernel/entry/common.c:98)
[  183.980237]  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)
[  183.980263]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  183.980315] RIP: 0033:0x4c2d9e
[  183.980345] Code: Unable to access opcode bytes at 0x4c2d74.

Code starting with the faulting instruction
===========================================
[  183.980409] RSP: 002b:00007ffc042efe30 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[  183.980464] RAX: 0000000000000050 RBX: 00007ffc042efec0 RCX: 00000000004c2d9e
[  183.980546] RDX: 0000000000000000 RSI: 00007ffc042efed0 RDI: 0000000000000007
[  183.980613] RBP: 00007ffc042efe40 R08: 0000000000000000 R09: 0000000000000000
[  183.980652] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc042efeb4
[  183.980732] R13: 00007ffc042f0a58 R14: 00007ffc042f0000 R15: 0000000000543540
| [  183.996606] ------------[ cut here ]------------
| [  183.996689] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: 0/12
| [  183.996828] Modules linked in:
| [  183.997018] Tainted: [W]=WARN
[  183.997093] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  183.997186] Workqueue: netns cleanup_net
[  183.997271] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  183.997354] 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
[  183.997563] RSP: 0018:ff47935200067c78 EFLAGS: 00010286
[  183.997640] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  183.997743] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff201fa742faa300
[  183.997835] RBP: 0000000000000000 R08: ff201fa743036890 R09: ff201fa74606282c
[  183.997935] R10: ff201fa742ea5118 R11: fefefefefefefeff R12: 0000000000000000
[  183.998038] R13: 0000000000000011 R14: ff201fa742ea5000 R15: ff201fa742faa300
[  183.998158] FS:  0000000000000000(0000) GS:ff201fa7e8996000(0000) knlGS:0000000000000000
[  183.998266] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  183.998370] CR2: 00007fe918db7680 CR3: 000000001b042005 CR4: 0000000000771ef0
[  183.998476] PKRU: 55555554
[  183.998538] Call Trace:
[  183.998592]  <TASK>
[  183.998652]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  183.998731]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  183.998812]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  183.998894]  cleanup_net (net/core/net_namespace.c:702)
[  183.998969]  process_one_work (kernel/workqueue.c:3314)
[  183.999035]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  183.999118]  ? rescuer_thread (kernel/workqueue.c:3672)
[  183.999179]  kthread (kernel/kthread.c:436)
[  183.999261]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[  183.999321]  ret_from_fork (arch/x86/kernel/process.c:158)
[  183.999396]  ? 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