======================================
| xx__-> [   47.694039] ------------[ cut here ]------------
| [   47.694091] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: unshare/204
| [   47.694151] Modules linked in:
| [   47.694237] Tainted: [W]=WARN
[   47.694257] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.694293] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.694324] 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
[   47.694425] RSP: 0018:ff8771868045fcc8 EFLAGS: 00010286
[   47.694454] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.694494] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff41a9c20393ed00
[   47.694533] RBP: 0000000000000000 R08: ff41a9c203940910 R09: ff41a9c2019be02c
[   47.694574] R10: ff41a9c2019b9118 R11: fefefefefefefeff R12: 0000000000000000
[   47.694614] R13: 0000000000000010 R14: ff41a9c2019b9000 R15: ff41a9c20393ed00
[   47.694656] FS:  00007fda12659740(0000) GS:ff41a9c287616000(0000) knlGS:0000000000000000
[   47.694707] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.694739] CR2: 000056332ef0a008 CR3: 0000000003a5c002 CR4: 0000000000771ef0
[   47.694780] PKRU: 55555554
[   47.694797] Call Trace:
[   47.694813]  <TASK>
[   47.694828]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   47.694851]  register_netdevice (net/core/dev.c:11488)
[   47.694876]  register_netdev (net/core/dev.c:11552)
[   47.694899]  loopback_net_init (drivers/net/loopback.c:218)
[   47.694922]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[   47.694946]  ops_init (net/core/net_namespace.c:137)
[   47.694971]  setup_net (net/core/net_namespace.c:446)
[   47.694993]  copy_net_ns (net/core/net_namespace.c:579)
[   47.695012]  create_new_namespaces (kernel/nsproxy.c:132)
[   47.695044]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   47.695072]  ksys_unshare (kernel/fork.c:3243)
[   47.695097]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   47.695120]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.695141]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.695169] RIP: 0033:0x7fda12754bcb
[   47.695191] 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
[   47.695285] RSP: 002b:00007ffff7884f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[   47.695326] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fda12754bcb
[   47.695369] RDX: 0000000000000000 RSI: 00007ffff7884cb0 RDI: 0000000040000000
[   47.695409] RBP: 00007ffff78852d0 R08: 00007ffff7884ea0 R09: 0000000000000000
[   47.695449] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[   47.695492] R13: 0000000000000000 R14: 00000000ffffffff R15: 00005633111ceb68
| [   47.696140] ------------[ cut here ]------------
| [   47.696170] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/204
| [   47.696225] Modules linked in:
| [   47.696303] Tainted: [W]=WARN
[   47.696324] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.696362] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.696386] 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
[   47.696481] RSP: 0018:ff8771868045fd68 EFLAGS: 00010286
[   47.696510] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.696553] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff41a9c20393ed00
[   47.696594] RBP: 0000000000000000 R08: ff41a9c203a85a50 R09: ff41a9c2019bc030
[   47.696633] R10: ff41a9c20461c118 R11: fefefefefefefeff R12: 0000000000000000
[   47.696674] R13: 0000000000000010 R14: ff41a9c20461c000 R15: ff41a9c20393ed00
[   47.696730] FS:  000000003bcda400(0000) GS:ff41a9c287616000(0000) knlGS:0000000000000000
[   47.696776] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.696816] CR2: 00007f43efcca000 CR3: 0000000004563003 CR4: 0000000000771ef0
[   47.696860] PKRU: 55555554
[   47.696875] Call Trace:
[   47.696886]  <TASK>
[   47.696900]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   47.696923]  register_netdevice (net/core/dev.c:11488)
[   47.696944]  __tun_chr_ioctl (drivers/net/tun.c:2876 drivers/net/tun.c:3157)
[   47.696969]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   47.696988]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[   47.697013]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.697037]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.697067] RIP: 0033:0x47cc8d
[   47.697087] 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 
[   47.697180] RSP: 002b:00007ffe8a0c4270 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   47.697217] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[   47.697257] RDX: 00007ffe8a0c42f0 RSI: 00000000400454ca RDI: 0000000000000005
[   47.697299] RBP: 00007ffe8a0c42c0 R08: 0000000000000000 R09: 0000000000000000
[   47.697339] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe8a0c47c8
[   47.697379] R13: 00007ffe8a0c4848 R14: 0000000000000002 R15: 0000000000543540
| [   47.697476] ------------[ cut here ]------------
| [   47.697507] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/204
| [   47.697555] Modules linked in:
| [   47.697632] Tainted: [W]=WARN
[   47.697652] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.697692] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.697726] 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
[   47.697820] RSP: 0018:ff8771868045fd60 EFLAGS: 00010286
[   47.697849] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[   47.697892] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff41a9c20393ed00
[   47.697933] RBP: 0000000000000002 R08: ff41a9c203a85a50 R09: ff41a9c2019bc030
[   47.697975] R10: ff41a9c20461c118 R11: fefefefefefefeff R12: 0000000000000000
[   47.698022] R13: 0000000000000010 R14: ff41a9c20461c000 R15: ff41a9c20393ed00
[   47.698064] FS:  000000003bcda400(0000) GS:ff41a9c287616000(0000) knlGS:0000000000000000
[   47.698099] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.698136] CR2: 00007f43efcca000 CR3: 0000000004563003 CR4: 0000000000771ef0
[   47.698178] PKRU: 55555554
[   47.698192] Call Trace:
[   47.698207]  <TASK>
[   47.698222]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   47.698244]  notifier_call_chain (kernel/notifier.c:85)
[   47.698266]  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)
[   47.698295]  __tun_chr_ioctl (drivers/net/tun.c:2963 drivers/net/tun.c:3285)
[   47.698315]  ? file_init_path (./include/linux/pagemap.h:126 fs/file_table.c:368)
[   47.698339]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[   47.698361]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.698381]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.698408] RIP: 0033:0x47cc8d
[   47.698432] 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 
[   47.698534] RSP: 002b:00007ffe8a0c42b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   47.698572] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[   47.698611] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[   47.698654] RBP: 00007ffe8a0c4300 R08: 0000000000000000 R09: 0000000000000000
[   47.698693] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe8a0c47c8
[   47.698740] R13: 00007ffe8a0c4848 R14: 0000000000000002 R15: 0000000000543540
| [   47.698843] ------------[ cut here ]------------
| [   47.698870] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/204
| [   47.698921] Modules linked in:
| [   47.698998] Tainted: [W]=WARN
[   47.699019] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.699056] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.699083] 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
[   47.699177] RSP: 0018:ff8771868045fc10 EFLAGS: 00010286
[   47.699202] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[   47.699244] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff41a9c20393ed00
[   47.699289] RBP: 0000000000000000 R08: ff41a9c203a85a50 R09: ff41a9c20477f030
[   47.699337] R10: ff41a9c20461c118 R11: fefefefefefefeff R12: 0000000000000000
[   47.699380] R13: 0000000000000010 R14: ff41a9c20461c000 R15: ff41a9c20393ed00
[   47.699423] FS:  000000003bcda400(0000) GS:ff41a9c287616000(0000) knlGS:0000000000000000
[   47.699472] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.699506] CR2: 00007f43efcca000 CR3: 0000000004563003 CR4: 0000000000771ef0
[   47.699551] PKRU: 55555554
[   47.699566] Call Trace:
[   47.699581]  <TASK>
[   47.699597]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   47.699617]  __dev_notify_flags (net/core/dev.c:9787)
[   47.699639]  netif_change_flags (net/core/dev.c:9820)
[   47.699663]  dev_change_flags (net/core/dev_api.c:68)
[   47.699684]  devinet_ioctl (net/ipv4/devinet.c:1199)
[   47.699705]  inet_ioctl (net/ipv4/af_inet.c:1011)
[   47.699727]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   47.699748]  sock_do_ioctl (net/socket.c:1313)
[   47.699773]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[   47.699797]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.699818]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.699847] RIP: 0033:0x47cc8d
[   47.699868] 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 
[   47.699964] RSP: 002b:00007ffe8a0c4290 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   47.700007] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[   47.700047] RDX: 00007ffe8a0c4300 RSI: 0000000000008914 RDI: 0000000000000006
[   47.700089] RBP: 00007ffe8a0c42e0 R08: 0000000000000000 R09: 0000000000000000
[   47.700133] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe8a0c47c8
[   47.700173] R13: 00007ffe8a0c4848 R14: 0000000000000002 R15: 0000000000543540
| [   92.681879] ------------[ cut here ]------------
| [   92.681960] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/204
| [   92.682028] Modules linked in:
| [   92.682117] Tainted: [W]=WARN
[   92.682142] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.682180] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.682212] 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
[   92.682318] RSP: 0018:ff8771868045fb58 EFLAGS: 00010286
[   92.682346] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[   92.682391] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff41a9c201cd0400
[   92.682434] RBP: 0000000000000000 R08: ff41a9c203a85a50 R09: ff41a9c20477f030
[   92.682477] R10: ff41a9c20461c118 R11: fefefefefefefeff R12: 0000000000000000
[   92.682520] R13: 0000000000000010 R14: ff41a9c20461c000 R15: ff41a9c201cd0400
[   92.682566] FS:  0000000000000000(0000) GS:ff41a9c287616000(0000) knlGS:0000000000000000
[   92.682612] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.682649] CR2: 00007f43efcca000 CR3: 0000000015042004 CR4: 0000000000771ef0
[   92.682691] PKRU: 55555554
[   92.682897] Call Trace:
[   92.682919]  <TASK>
[   92.682935]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   92.682959]  netif_close_many (net/core/dev.c:1804)
[   92.682985]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   92.683014]  ? __queue_work (kernel/workqueue.c:2401)
[   92.683041]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[   92.683069]  __tun_detach (./include/linux/netdevice.h:3455 drivers/net/tun.c:628)
[   92.683096]  tun_chr_close (drivers/net/tun.c:644 drivers/net/tun.c:3505)
[   92.683116]  __fput (fs/file_table.c:510)
[   92.683140]  task_work_run (kernel/task_work.c:233)
[   92.683162]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:976)
[   92.683188]  do_group_exit (kernel/exit.c:1119)
[   92.683212]  ? __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   92.683236]  get_signal (kernel/signal.c:3037)
[   92.683261]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[   92.683288]  exit_to_user_mode_loop (kernel/entry/common.c:64 kernel/entry/common.c:98)
[   92.683315]  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)
[   92.683341]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   92.683373] RIP: 0033:0x4c2d9e
[   92.683397] Code: Unable to access opcode bytes at 0x4c2d74.

Code starting with the faulting instruction
===========================================
[   92.683432] RSP: 002b:00007ffe8a0c3c20 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   92.683475] RAX: 0000000000000014 RBX: 0000000000000016 RCX: 00000000004c2d9e
[   92.683521] RDX: 0000000000000014 RSI: 00007ffe8a0c3d00 RDI: 0000000000000007
[   92.683566] RBP: 00007ffe8a0c3c30 R08: 00007ffe8a0c3cc0 R09: 000000000000000c
[   92.683608] R10: 0000000000000000 R11: 0000000000000202 R12: 000000003bce2cb0
[   92.683651] R13: 00007ffe8a0c4848 R14: 00007ffe8a0c3df0 R15: 0000000000543540
| [   92.683981] ------------[ cut here ]------------
| [   92.684037] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/204
| [   92.684096] Modules linked in:
| [   92.684179] Tainted: [W]=WARN
[   92.684198] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.684237] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.684262] 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
[   92.684355] RSP: 0018:ff8771868045fbc8 EFLAGS: 00010286
[   92.684385] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   92.684428] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff41a9c201cd0400
[   92.684469] RBP: 0000000000000000 R08: ff41a9c203a85a50 R09: ff41a9c2068a1030
[   92.684511] R10: ff41a9c20461c118 R11: fefefefefefefeff R12: 0000000000000000
[   92.684555] R13: 0000000000000011 R14: ff41a9c20461c000 R15: ff41a9c201cd0400
[   92.684603] FS:  0000000000000000(0000) GS:ff41a9c287616000(0000) knlGS:0000000000000000
[   92.684654] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.684686] CR2: 00007f583ee91f98 CR3: 0000000015042004 CR4: 0000000000771ef0
[   92.684734] PKRU: 55555554
[   92.684749] Call Trace:
[   92.684763]  <TASK>
[   92.684779]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   92.684808]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[   92.684837]  __tun_detach (./include/linux/netdevice.h:3455 drivers/net/tun.c:628)
[   92.684861]  tun_chr_close (drivers/net/tun.c:644 drivers/net/tun.c:3505)
[   92.684884]  __fput (fs/file_table.c:510)
[   92.684913]  task_work_run (kernel/task_work.c:233)
[   92.684935]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:976)
[   92.684958]  do_group_exit (kernel/exit.c:1119)
[   92.684980]  ? __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   92.685007]  get_signal (kernel/signal.c:3037)
[   92.685029]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[   92.685054]  exit_to_user_mode_loop (kernel/entry/common.c:64 kernel/entry/common.c:98)
[   92.685085]  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)
[   92.685110]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   92.685139] RIP: 0033:0x4c2d9e
[   92.685159] Code: Unable to access opcode bytes at 0x4c2d74.

Code starting with the faulting instruction
===========================================
[   92.685192] RSP: 002b:00007ffe8a0c3c20 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   92.685234] RAX: 0000000000000014 RBX: 0000000000000016 RCX: 00000000004c2d9e
[   92.685279] RDX: 0000000000000014 RSI: 00007ffe8a0c3d00 RDI: 0000000000000007
[   92.685321] RBP: 00007ffe8a0c3c30 R08: 00007ffe8a0c3cc0 R09: 000000000000000c
[   92.685367] R10: 0000000000000000 R11: 0000000000000202 R12: 000000003bce2cb0
[   92.685406] R13: 00007ffe8a0c4848 R14: 00007ffe8a0c3df0 R15: 0000000000543540
| [   92.692804] ------------[ cut here ]------------
| [   92.692876] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: 0/12
| [   92.692978] Modules linked in:
| [   92.693125] Tainted: [W]=WARN
[   92.693179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.693248] Workqueue: netns cleanup_net
[   92.693306] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.693369] 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
[   92.693499] RSP: 0018:ff87718680067c78 EFLAGS: 00010286
[   92.693563] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   92.693639] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff41a9c201cd0500
[   92.693723] RBP: 0000000000000000 R08: ff41a9c203940910 R09: ff41a9c20682d02c
[   92.693800] R10: ff41a9c2019b9118 R11: fefefefefefefeff R12: 0000000000000000
[   92.693876] R13: 0000000000000011 R14: ff41a9c2019b9000 R15: ff41a9c201cd0500
[   92.693967] FS:  0000000000000000(0000) GS:ff41a9c287596000(0000) knlGS:0000000000000000
[   92.694045] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.694113] CR2: 00007fa29bb2fc40 CR3: 0000000015042002 CR4: 0000000000771ef0
[   92.694189] PKRU: 55555554
[   92.694237] Call Trace:
[   92.694285]  <TASK>
[   92.694351]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   92.694418]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   92.694482]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   92.694540]  cleanup_net (net/core/net_namespace.c:702)
[   92.694597]  process_one_work (kernel/workqueue.c:3314)
[   92.694655]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   92.694719]  ? rescuer_thread (kernel/workqueue.c:3672)
[   92.694775]  kthread (kernel/kthread.c:436)
[   92.694833]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   92.694895]  ret_from_fork (arch/x86/kernel/process.c:158)
[   92.694959]  ? 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