======================================
| xx__-> [   93.358365] ------------[ cut here ]------------
| [   93.358462] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: unshare/248
| [   93.358569] Modules linked in:
| [   93.358748] Tainted: [W]=WARN
[   93.358806] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   93.358880] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   93.358949] 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
[   93.359086] RSP: 0018:ff5eed03404e7cc8 EFLAGS: 00010286
[   93.359154] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   93.359234] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1d22b3c1d7b500
[   93.359315] RBP: 0000000000000000 R08: ff1d22b3c18a3010 R09: ff1d22b3c19c502c
[   93.359394] R10: ff1d22b3c19c7118 R11: fefefefefefefeff R12: 0000000000000000
[   93.359477] R13: 0000000000000010 R14: ff1d22b3c19c7000 R15: ff1d22b3c1d7b500
[   93.359569] FS:  00007fa2f39bb740(0000) GS:ff1d22b468396000(0000) knlGS:0000000000000000
[   93.359659] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   93.359737] CR2: 00005608a506e008 CR3: 0000000002ff2006 CR4: 0000000000771ef0
[   93.359824] PKRU: 55555554
[   93.359876] Call Trace:
[   93.359930]  <TASK>
[   93.359983]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   93.360044]  register_netdevice (net/core/dev.c:11488)
[   93.360119]  register_netdev (net/core/dev.c:11552)
[   93.360180]  loopback_net_init (drivers/net/loopback.c:218)
[   93.360244]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[   93.360313]  ops_init (net/core/net_namespace.c:137)
[   93.360376]  setup_net (net/core/net_namespace.c:446)
[   93.360438]  copy_net_ns (net/core/net_namespace.c:579)
[   93.360499]  create_new_namespaces (kernel/nsproxy.c:132)
[   93.360577]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   93.360651]  ksys_unshare (kernel/fork.c:3243)
[   93.360722]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   93.360785]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   93.360848]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   93.360917] RIP: 0033:0x7fa2f3ab6bcb
[   93.360978] 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
[   93.361118] RSP: 002b:00007ffeb01622b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[   93.361201] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa2f3ab6bcb
[   93.361281] RDX: 0000000000000000 RSI: 00007ffeb0162020 RDI: 0000000040000000
[   93.361362] RBP: 00007ffeb0162640 R08: 00007ffeb0162210 R09: 0000000000000000
[   93.361446] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[   93.361527] R13: 0000000000000000 R14: 00000000ffffffff R15: 000056088e386b68
| [   93.362465] ------------[ cut here ]------------
| [   93.362549] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/248
| [   93.362650] Modules linked in:
| [   93.362839] Tainted: [W]=WARN
[   93.362900] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   93.362973] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   93.363041] 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
[   93.363175] RSP: 0018:ff5eed03404e7d68 EFLAGS: 00010286
[   93.363242] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   93.363323] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1d22b3c1d7b500
[   93.363407] RBP: 0000000000000000 R08: ff1d22b3c1839050 R09: ff1d22b3c3272030
[   93.363491] R10: ff1d22b3c1880118 R11: fefefefefefefeff R12: 0000000000000000
[   93.363578] R13: 0000000000000010 R14: ff1d22b3c1880000 R15: ff1d22b3c1d7b500
[   93.363670] FS:  0000000038cc7400(0000) GS:ff1d22b468396000(0000) knlGS:0000000000000000
[   93.363761] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   93.363835] CR2: 00007fdffd44e000 CR3: 00000000031ec001 CR4: 0000000000771ef0
[   93.363918] PKRU: 55555554
[   93.363969] Call Trace:
[   93.364022]  <TASK>
[   93.364075]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   93.364136]  register_netdevice (net/core/dev.c:11488)
[   93.364197]  __tun_chr_ioctl (drivers/net/tun.c:2876 drivers/net/tun.c:3157)
[   93.364261]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   93.364326]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[   93.364390]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   93.364451]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   93.364520] RIP: 0033:0x47cc8d
[   93.364589] 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 
[   93.364745] RSP: 002b:00007fff6f57adf0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   93.364831] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[   93.364914] RDX: 00007fff6f57ae70 RSI: 00000000400454ca RDI: 0000000000000005
[   93.364999] RBP: 00007fff6f57ae40 R08: 0000000000000000 R09: 0000000000000000
[   93.365083] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff6f57b348
[   93.365168] R13: 00007fff6f57b3c8 R14: 0000000000000002 R15: 0000000000543540
| [   93.365400] ------------[ cut here ]------------
| [   93.365474] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/248
| [   93.365575] Modules linked in:
| [   93.365748] Tainted: [W]=WARN
[   93.365807] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   93.365882] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   93.365951] 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
[   93.366094] RSP: 0018:ff5eed03404e7d60 EFLAGS: 00010286
[   93.366162] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[   93.366247] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1d22b3c1d7b500
[   93.366328] RBP: 0000000000000002 R08: ff1d22b3c1839050 R09: ff1d22b3c3272030
[   93.366410] R10: ff1d22b3c1880118 R11: fefefefefefefeff R12: 0000000000000000
[   93.366495] R13: 0000000000000010 R14: ff1d22b3c1880000 R15: ff1d22b3c1d7b500
[   93.366587] FS:  0000000038cc7400(0000) GS:ff1d22b468396000(0000) knlGS:0000000000000000
[   93.366675] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   93.366757] CR2: 00007fdffd44e000 CR3: 00000000031ec001 CR4: 0000000000771ef0
[   93.366843] PKRU: 55555554
[   93.366895] Call Trace:
[   93.366948]  <TASK>
[   93.367001]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   93.367063]  notifier_call_chain (kernel/notifier.c:85)
[   93.367126]  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)
[   93.367196]  __tun_chr_ioctl (drivers/net/tun.c:2963 drivers/net/tun.c:3285)
[   93.367259]  ? file_init_path (./include/linux/pagemap.h:126 fs/file_table.c:368)
[   93.367326]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[   93.367388]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   93.367451]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   93.367520] RIP: 0033:0x47cc8d
[   93.367588] 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 
[   93.367737] RSP: 002b:00007fff6f57ae30 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   93.367820] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[   93.367901] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[   93.367983] RBP: 00007fff6f57ae80 R08: 0000000000000000 R09: 0000000000000000
[   93.368064] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff6f57b348
[   93.368147] R13: 00007fff6f57b3c8 R14: 0000000000000002 R15: 0000000000543540
| [   93.368377] ------------[ cut here ]------------
| [   93.368444] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/248
| [   93.368534] Modules linked in:
| [   93.368713] Tainted: [W]=WARN
[   93.368772] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   93.368845] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   93.368914] 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
[   93.369054] RSP: 0018:ff5eed03404e7c10 EFLAGS: 00010286
[   93.369121] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[   93.369202] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1d22b3c1d7b500
[   93.369284] RBP: 0000000000000000 R08: ff1d22b3c1839050 R09: ff1d22b3c3277030
[   93.369366] R10: ff1d22b3c1880118 R11: fefefefefefefeff R12: 0000000000000000
[   93.369446] R13: 0000000000000010 R14: ff1d22b3c1880000 R15: ff1d22b3c1d7b500
[   93.369530] FS:  0000000038cc7400(0000) GS:ff1d22b468396000(0000) knlGS:0000000000000000
[   93.369617] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   93.369698] CR2: 00007fdffd44e000 CR3: 00000000031ec001 CR4: 0000000000771ef0
[   93.369781] PKRU: 55555554
[   93.369851] Call Trace:
[   93.369904]  <TASK>
[   93.369956]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   93.370017]  __dev_notify_flags (net/core/dev.c:9787)
[   93.370079]  netif_change_flags (net/core/dev.c:9820)
[   93.370141]  dev_change_flags (net/core/dev_api.c:68)
[   93.370202]  devinet_ioctl (net/ipv4/devinet.c:1199)
[   93.370266]  inet_ioctl (net/ipv4/af_inet.c:1011)
[   93.370328]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   93.370389]  sock_do_ioctl (net/socket.c:1313)
[   93.370453]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[   93.370515]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   93.370585]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   93.370656] RIP: 0033:0x47cc8d
[   93.370722] 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 
[   93.370861] RSP: 002b:00007fff6f57ae10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   93.370944] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[   93.371025] RDX: 00007fff6f57ae80 RSI: 0000000000008914 RDI: 0000000000000006
[   93.371109] RBP: 00007fff6f57ae60 R08: 0000000000000000 R09: 0000000000000000
[   93.371191] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff6f57b348
[   93.371272] R13: 00007fff6f57b3c8 R14: 0000000000000002 R15: 0000000000543540
| [  138.342067] ------------[ cut here ]------------
| [  138.342133] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/248
| [  138.342192] Modules linked in:
| [  138.342275] Tainted: [W]=WARN
[  138.342300] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  138.342340] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  138.342369] 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
[  138.342475] RSP: 0018:ff5eed03404e7b58 EFLAGS: 00010286
[  138.342507] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[  138.342552] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1d22b3c18a0400
[  138.342597] RBP: 0000000000000000 R08: ff1d22b3c1839050 R09: ff1d22b3c202b030
[  138.342643] R10: ff1d22b3c1880118 R11: fefefefefefefeff R12: 0000000000000000
[  138.342690] R13: 0000000000000010 R14: ff1d22b3c1880000 R15: ff1d22b3c18a0400
[  138.342746] FS:  0000000000000000(0000) GS:ff1d22b468416000(0000) knlGS:0000000000000000
[  138.342798] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  138.342831] CR2: 00007fb099b506f0 CR3: 0000000003249001 CR4: 0000000000771ef0
[  138.342876] PKRU: 55555554
[  138.342893] Call Trace:
[  138.342910]  <TASK>
[  138.342927]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[  138.342951]  netif_close_many (net/core/dev.c:1804)
[  138.342978]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[  138.343008]  ? __queue_work (kernel/workqueue.c:2401)
[  138.343032]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[  138.343065]  __tun_detach (./include/linux/netdevice.h:3455 drivers/net/tun.c:628)
[  138.343095]  tun_chr_close (drivers/net/tun.c:644 drivers/net/tun.c:3505)
[  138.343120]  __fput (fs/file_table.c:510)
[  138.343147]  task_work_run (kernel/task_work.c:233)
[  138.343171]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:976)
[  138.343198]  ? ___sys_recvmsg (net/socket.c:2961)
[  138.343220]  do_group_exit (kernel/exit.c:1119)
[  138.343242]  get_signal (kernel/signal.c:3037)
[  138.343265]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[  138.343296]  exit_to_user_mode_loop (kernel/entry/common.c:64 kernel/entry/common.c:98)
[  138.343327]  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)
[  138.343355]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  138.343388] RIP: 0033:0x4c2d9e
[  138.343413] Code: Unable to access opcode bytes at 0x4c2d74.

Code starting with the faulting instruction
===========================================
[  138.343449] RSP: 002b:00007fff6f57a7a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[  138.343492] RAX: 0000000000000050 RBX: 00007fff6f57a830 RCX: 00000000004c2d9e
[  138.343540] RDX: 0000000000000000 RSI: 00007fff6f57a840 RDI: 0000000000000007
[  138.343583] RBP: 00007fff6f57a7b0 R08: 0000000000000000 R09: 0000000000000000
[  138.343629] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff6f57a824
[  138.343669] R13: 00007fff6f57b3c8 R14: 00007fff6f57a970 R15: 0000000000543540
| [  138.343854] ------------[ cut here ]------------
| [  138.343883] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/248
| [  138.343933] Modules linked in:
| [  138.344020] Tainted: [W]=WARN
[  138.344044] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  138.344083] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  138.344113] 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
[  138.344221] RSP: 0018:ff5eed03404e7bc8 EFLAGS: 00010286
[  138.344252] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  138.344298] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1d22b3c18a0400
[  138.344346] RBP: 0000000000000000 R08: ff1d22b3c1839050 R09: ff1d22b3c66ae030
[  138.344388] R10: ff1d22b3c1880118 R11: fefefefefefefeff R12: 0000000000000000
[  138.344432] R13: 0000000000000011 R14: ff1d22b3c1880000 R15: ff1d22b3c18a0400
[  138.344477] FS:  0000000000000000(0000) GS:ff1d22b468416000(0000) knlGS:0000000000000000
[  138.344522] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  138.344558] CR2: 00007fb099bbb550 CR3: 0000000003249001 CR4: 0000000000771ef0
[  138.344604] PKRU: 55555554
[  138.344619] Call Trace:
[  138.344634]  <TASK>
[  138.344649]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  138.344682]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[  138.344712]  __tun_detach (./include/linux/netdevice.h:3455 drivers/net/tun.c:628)
[  138.344736]  tun_chr_close (drivers/net/tun.c:644 drivers/net/tun.c:3505)
[  138.344758]  __fput (fs/file_table.c:510)
[  138.344787]  task_work_run (kernel/task_work.c:233)
[  138.344809]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:976)
[  138.344830]  ? ___sys_recvmsg (net/socket.c:2961)
[  138.344851]  do_group_exit (kernel/exit.c:1119)
[  138.344873]  get_signal (kernel/signal.c:3037)
[  138.344899]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[  138.344928]  exit_to_user_mode_loop (kernel/entry/common.c:64 kernel/entry/common.c:98)
[  138.344958]  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)
[  138.344983]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  138.345015] RIP: 0033:0x4c2d9e
[  138.345039] Code: Unable to access opcode bytes at 0x4c2d74.

Code starting with the faulting instruction
===========================================
[  138.345076] RSP: 002b:00007fff6f57a7a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[  138.345119] RAX: 0000000000000050 RBX: 00007fff6f57a830 RCX: 00000000004c2d9e
[  138.345163] RDX: 0000000000000000 RSI: 00007fff6f57a840 RDI: 0000000000000007
[  138.345207] RBP: 00007fff6f57a7b0 R08: 0000000000000000 R09: 0000000000000000
[  138.345250] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff6f57a824
[  138.345291] R13: 00007fff6f57b3c8 R14: 00007fff6f57a970 R15: 0000000000543540
| [  138.351846] ------------[ cut here ]------------
| [  138.351885] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: 1/64
| [  138.351955] Modules linked in:
| [  138.352042] Tainted: [W]=WARN
[  138.352064] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  138.352100] Workqueue: netns cleanup_net
[  138.352126] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  138.352157] 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
[  138.352258] RSP: 0018:ff5eed0340237c78 EFLAGS: 00010286
[  138.352289] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  138.352333] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1d22b3c18a0400
[  138.352374] RBP: 0000000000000000 R08: ff1d22b3c18a3010 R09: ff1d22b3c66a802c
[  138.352417] R10: ff1d22b3c19c7118 R11: fefefefefefefeff R12: 0000000000000000
[  138.352464] R13: 0000000000000011 R14: ff1d22b3c19c7000 R15: ff1d22b3c18a0400
[  138.352512] FS:  0000000000000000(0000) GS:ff1d22b468416000(0000) knlGS:0000000000000000
[  138.352560] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  138.352598] CR2: 000055d552b332b8 CR3: 000000000338b005 CR4: 0000000000771ef0
[  138.352644] PKRU: 55555554
[  138.352660] Call Trace:
[  138.352675]  <TASK>
[  138.352694]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  138.352722]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  138.352752]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  138.352778]  cleanup_net (net/core/net_namespace.c:702)
[  138.352805]  process_one_work (kernel/workqueue.c:3314)
[  138.352831]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  138.352855]  ? rescuer_thread (kernel/workqueue.c:3672)
[  138.352879]  kthread (kernel/kthread.c:436)
[  138.352902]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[  138.352925]  ret_from_fork (arch/x86/kernel/process.c:158)
[  138.352947]  ? 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