======================================
| xx__-> [    2.116355] ------------[ cut here ]------------
| [    2.116391] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: unshare/160
| [    2.116426] Modules linked in:
| [    2.116475] Tainted: [W]=WARN
[    2.116486] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.116507] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.116523] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 b2 fb ff       	call   0xfffffffffffbb2b2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.116570] RSP: 0018:ff4e05be403dfcc8 EFLAGS: 00010286
[    2.116588] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.116611] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3b34f243079800
[    2.116634] RBP: 0000000000000000 R08: ff3b34f243338b50 R09: ff3b34f244cea02c
[    2.116653] R10: ff3b34f2430c5118 R11: fefefefefefefeff R12: 0000000000000000
[    2.116674] R13: 0000000000000010 R14: ff3b34f2430c5000 R15: ff3b34f243079800
[    2.116701] FS:  00007fab0a3f2740(0000) GS:ff3b34f2d1c16000(0000) knlGS:0000000000000000
[    2.116724] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.116743] CR2: 0000561add34f310 CR3: 0000000004d7c006 CR4: 0000000000771ef0
[    2.116763] PKRU: 55555554
[    2.116770] Call Trace:
[    2.116780]  <TASK>
[    2.116791]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.116803]  register_netdevice (net/core/dev.c:11488)
[    2.116815]  register_netdev (net/core/dev.c:11552)
[    2.116826]  loopback_net_init (drivers/net/loopback.c:218)
[    2.116842]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.116859]  ops_init (net/core/net_namespace.c:137)
[    2.116872]  setup_net (net/core/net_namespace.c:446)
[    2.116883]  copy_net_ns (net/core/net_namespace.c:579)
[    2.116897]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.116913]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.116935]  ksys_unshare (kernel/fork.c:3243)
[    2.116949]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.116960]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.116974]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.116989] RIP: 0033:0x7fab0a4edbcb
[    2.117001] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.117052] RSP: 002b:00007ffdfaafb708 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[    2.117074] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fab0a4edbcb
[    2.117097] RDX: 0000000000000000 RSI: 00007ffdfaafb470 RDI: 0000000040000000
[    2.117116] RBP: 00007ffdfaafba90 R08: 00007ffdfaafb660 R09: 0000000000000000
[    2.117137] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[    2.117166] R13: 0000000000000000 R14: 00000000ffffffff R15: 0000561add352b68
| [    2.119952] ------------[ cut here ]------------
| [    2.119971] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/160
| [    2.120001] Modules linked in:
| [    2.120045] Tainted: [W]=WARN
[    2.120057] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.120077] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.120091] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 b2 fb ff       	call   0xfffffffffffbb2b2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.120141] RSP: 0018:ff4e05be403dfd68 EFLAGS: 00010286
[    2.120163] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.120187] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3b34f243079800
[    2.120207] RBP: 0000000000000000 R08: ff3b34f2430a7110 R09: ff3b34f244cef030
[    2.120230] R10: ff3b34f244cb4118 R11: fefefefefefefeff R12: 0000000000000000
[    2.120252] R13: 0000000000000010 R14: ff3b34f244cb4000 R15: ff3b34f243079800
[    2.120277] FS:  000000002489c400(0000) GS:ff3b34f2d1c16000(0000) knlGS:0000000000000000
[    2.120299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.120317] CR2: 00007febe3406000 CR3: 0000000004c5c001 CR4: 0000000000771ef0
[    2.120338] PKRU: 55555554
[    2.120346] Call Trace:
[    2.120356]  <TASK>
[    2.120365]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.120379]  register_netdevice (net/core/dev.c:11488)
[    2.120392]  __tun_chr_ioctl (drivers/net/tun.c:2876 drivers/net/tun.c:3157)
[    2.120406]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[    2.120421]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[    2.120433]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.120445]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.120460] RIP: 0033:0x47cc8d
[    2.120471] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
All code
========
   0:	04 25                	add    $0x25,%al
   2:	28 00                	sub    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
   a:	31 c0                	xor    %eax,%eax
   c:	48 8d 45 10          	lea    0x10(%rbp),%rax
  10:	c7 45 b0 10 00 00 00 	movl   $0x10,-0x50(%rbp)
  17:	48 89 45 b8          	mov    %rax,-0x48(%rbp)
  1b:	48 8d 45 d0          	lea    -0x30(%rbp),%rax
  1f:	48 89 45 c0          	mov    %rax,-0x40(%rbp)
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	89 c2                	mov    %eax,%edx		<-- trapping instruction
  2c:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
  31:	77 1a                	ja     0x4d
  33:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
  37:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  3e:	00 00 

Code starting with the faulting instruction
===========================================
   0:	89 c2                	mov    %eax,%edx
   2:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
   7:	77 1a                	ja     0x23
   9:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
   d:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  14:	00 00 
[    2.120517] RSP: 002b:00007fffbe866370 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.120541] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.120562] RDX: 00007fffbe8663f0 RSI: 00000000400454ca RDI: 0000000000000005
[    2.120584] RBP: 00007fffbe8663c0 R08: 0000000000000000 R09: 0000000000000000
[    2.120604] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffbe8668c8
[    2.120627] R13: 00007fffbe866948 R14: 0000000000000002 R15: 0000000000543540
| [    2.120687] ------------[ cut here ]------------
| [    2.120703] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/160
| [    2.120728] Modules linked in:
| [    2.120772] Tainted: [W]=WARN
[    2.120782] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.120800] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.120817] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 b2 fb ff       	call   0xfffffffffffbb2b2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.120859] RSP: 0018:ff4e05be403dfd60 EFLAGS: 00010286
[    2.120876] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[    2.120897] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3b34f243079800
[    2.120924] RBP: 0000000000000002 R08: ff3b34f2430a7110 R09: ff3b34f244cef030
[    2.120944] R10: ff3b34f244cb4118 R11: fefefefefefefeff R12: 0000000000000000
[    2.120967] R13: 0000000000000010 R14: ff3b34f244cb4000 R15: ff3b34f243079800
[    2.120988] FS:  000000002489c400(0000) GS:ff3b34f2d1c16000(0000) knlGS:0000000000000000
[    2.121008] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.121028] CR2: 00007febe3406000 CR3: 0000000004c5c001 CR4: 0000000000771ef0
[    2.121048] PKRU: 55555554
[    2.121055] Call Trace:
[    2.121061]  <TASK>
[    2.121069]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[    2.121081]  notifier_call_chain (kernel/notifier.c:85)
[    2.121094]  netdev_update_features (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:1590 net/core/dev.c:11099 net/core/dev.c:11096)
[    2.121108]  __tun_chr_ioctl (drivers/net/tun.c:2963 drivers/net/tun.c:3285)
[    2.121120]  ? file_init_path (./include/linux/pagemap.h:126 fs/file_table.c:368)
[    2.121134]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[    2.121150]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.121160]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.121176] RIP: 0033:0x47cc8d
[    2.121186] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
All code
========
   0:	04 25                	add    $0x25,%al
   2:	28 00                	sub    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
   a:	31 c0                	xor    %eax,%eax
   c:	48 8d 45 10          	lea    0x10(%rbp),%rax
  10:	c7 45 b0 10 00 00 00 	movl   $0x10,-0x50(%rbp)
  17:	48 89 45 b8          	mov    %rax,-0x48(%rbp)
  1b:	48 8d 45 d0          	lea    -0x30(%rbp),%rax
  1f:	48 89 45 c0          	mov    %rax,-0x40(%rbp)
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	89 c2                	mov    %eax,%edx		<-- trapping instruction
  2c:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
  31:	77 1a                	ja     0x4d
  33:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
  37:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  3e:	00 00 

Code starting with the faulting instruction
===========================================
   0:	89 c2                	mov    %eax,%edx
   2:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
   7:	77 1a                	ja     0x23
   9:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
   d:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  14:	00 00 
[    2.121233] RSP: 002b:00007fffbe8663b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.121253] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.121276] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[    2.121297] RBP: 00007fffbe866400 R08: 0000000000000005 R09: 0000000000001ff0
[    2.121323] R10: 0000000000000003 R11: 0000000000000246 R12: 00007fffbe8668c8
[    2.121347] R13: 00007fffbe866948 R14: 0000000000000002 R15: 0000000000543540
| [    2.121402] ------------[ cut here ]------------
| [    2.121418] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/160
| [    2.121444] Modules linked in:
| [    2.121483] Tainted: [W]=WARN
[    2.121495] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.121512] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.121528] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 b2 fb ff       	call   0xfffffffffffbb2b2
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.121571] RSP: 0018:ff4e05be403dfc10 EFLAGS: 00010286
[    2.121586] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.121609] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3b34f243079800
[    2.121628] RBP: 0000000000000000 R08: ff3b34f2430a7110 R09: ff3b34f244cec030
[    2.121652] R10: ff3b34f244cb4118 R11: fefefefefefefeff R12: 0000000000000000
[    2.121674] R13: 0000000000000010 R14: ff3b34f244cb4000 R15: ff3b34f243079800
[    2.121698] FS:  000000002489c400(0000) GS:ff3b34f2d1c16000(0000) knlGS:0000000000000000
[    2.121719] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.121738] CR2: 00007febe3406000 CR3: 0000000004c5c001 CR4: 0000000000771ef0
[    2.121758] PKRU: 55555554
[    2.121766] Call Trace:
[    2.121772]  <TASK>
[    2.121779]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.121790]  __dev_notify_flags (net/core/dev.c:9787)
[    2.121803]  netif_change_flags (net/core/dev.c:9820)
[    2.121814]  dev_change_flags (net/core/dev_api.c:68)
[    2.121825]  devinet_ioctl (net/ipv4/devinet.c:1199)
[    2.121838]  inet_ioctl (net/ipv4/af_inet.c:1011)
[    2.121850]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    2.121861]  sock_do_ioctl (net/socket.c:1313)
[    2.121875]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[    2.121888]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.121901]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.121918] RIP: 0033:0x47cc8d
[    2.121930] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
All code
========
   0:	04 25                	add    $0x25,%al
   2:	28 00                	sub    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
   a:	31 c0                	xor    %eax,%eax
   c:	48 8d 45 10          	lea    0x10(%rbp),%rax
  10:	c7 45 b0 10 00 00 00 	movl   $0x10,-0x50(%rbp)
  17:	48 89 45 b8          	mov    %rax,-0x48(%rbp)
  1b:	48 8d 45 d0          	lea    -0x30(%rbp),%rax
  1f:	48 89 45 c0          	mov    %rax,-0x40(%rbp)
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	89 c2                	mov    %eax,%edx		<-- trapping instruction
  2c:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
  31:	77 1a                	ja     0x4d
  33:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
  37:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  3e:	00 00 

Code starting with the faulting instruction
===========================================
   0:	89 c2                	mov    %eax,%edx
   2:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
   7:	77 1a                	ja     0x23
   9:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
   d:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  14:	00 00 
[    2.121977] RSP: 002b:00007fffbe866390 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.121998] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.122022] RDX: 00007fffbe866400 RSI: 0000000000008914 RDI: 0000000000000006
[    2.122043] RBP: 00007fffbe8663e0 R08: 0000000000000005 R09: 0000000000001ff0
[    2.122063] R10: 0000000000000003 R11: 0000000000000246 R12: 00007fffbe8668c8
[    2.122084] R13: 00007fffbe866948 R14: 0000000000000002 R15: 0000000000543540
| [   47.099669] ------------[ cut here ]------------
| [   47.099738] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/160
| [   47.099800] Modules linked in:
| [   47.099884] Tainted: [W]=WARN
[   47.099909] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.100570] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.100604] 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
[   47.100716] RSP: 0018:ff4e05be403dfb58 EFLAGS: 00010286
[   47.100752] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[   47.100805] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3b34f243079500
[   47.100847] RBP: 0000000000000000 R08: ff3b34f2430a7110 R09: ff3b34f244cec030
[   47.100895] R10: ff3b34f244cb4118 R11: fefefefefefefeff R12: 0000000000000000
[   47.100938] R13: 0000000000000010 R14: ff3b34f244cb4000 R15: ff3b34f243079500
[   47.100983] FS:  0000000000000000(0000) GS:ff3b34f2d1c16000(0000) knlGS:0000000000000000
[   47.101028] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.101064] CR2: 00007febe3406000 CR3: 0000000016a42002 CR4: 0000000000771ef0
[   47.101104] PKRU: 55555554
[   47.101118] Call Trace:
[   47.101131]  <TASK>
[   47.101147]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   47.101166]  netif_close_many (net/core/dev.c:1804)
[   47.101193]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   47.101223]  ? __queue_work (kernel/workqueue.c:2401)
[   47.101247]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[   47.101276]  __tun_detach (./include/linux/netdevice.h:3455 drivers/net/tun.c:628)
[   47.101300]  tun_chr_close (drivers/net/tun.c:644 drivers/net/tun.c:3505)
[   47.101321]  __fput (fs/file_table.c:510)
[   47.101346]  task_work_run (kernel/task_work.c:233)
[   47.101370]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:976)
[   47.101391]  do_group_exit (kernel/exit.c:1119)
[   47.101414]  get_signal (kernel/signal.c:3037)
[   47.101436]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[   47.101468]  exit_to_user_mode_loop (kernel/entry/common.c:64 kernel/entry/common.c:98)
[   47.101499]  do_syscall_64 (./include/linux/irq-entry-common.h:207 ./include/linux/irq-entry-common.h:230 ./include/linux/entry-common.h:318 arch/x86/entry/syscall_64.c:100)
[   47.101529]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.101560] RIP: 0033:0x4c2d9e
[   47.101580] Code: Unable to access opcode bytes at 0x4c2d74.

Code starting with the faulting instruction
===========================================
[   47.101613] RSP: 002b:00007fffbe865d20 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   47.101657] RAX: 0000000000000014 RBX: 0000000000000016 RCX: 00000000004c2d9e
[   47.101699] RDX: 0000000000000014 RSI: 00007fffbe865e00 RDI: 0000000000000007
[   47.101741] RBP: 00007fffbe865d30 R08: 00007fffbe865dc0 R09: 000000000000000c
[   47.101779] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000248a4cc0
[   47.101820] R13: 00007fffbe866948 R14: 00007fffbe865ef0 R15: 0000000000543540
| [   47.101989] ------------[ cut here ]------------
| [   47.102019] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/160
| [   47.102071] Modules linked in:
| [   47.102153] Tainted: [W]=WARN
[   47.102174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.102209] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.102236] 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
[   47.102328] RSP: 0018:ff4e05be403dfbc8 EFLAGS: 00010286
[   47.102357] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.102397] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3b34f241de8100
[   47.102441] RBP: 0000000000000000 R08: ff3b34f2430a7110 R09: ff3b34f244cf0830
[   47.102482] R10: ff3b34f244cb4118 R11: fefefefefefefeff R12: 0000000000000000
[   47.102527] R13: 0000000000000011 R14: ff3b34f244cb4000 R15: ff3b34f241de8100
[   47.102571] FS:  0000000000000000(0000) GS:ff3b34f2d1a96000(0000) knlGS:0000000000000000
[   47.102613] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.102645] CR2: 00007f5024fc3f98 CR3: 0000000016a42006 CR4: 0000000000771ef0
[   47.102690] PKRU: 55555554
[   47.102703] Call Trace:
[   47.102714]  <TASK>
[   47.102730]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.102758]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[   47.102780]  __tun_detach (./include/linux/netdevice.h:3455 drivers/net/tun.c:628)
[   47.102805]  tun_chr_close (drivers/net/tun.c:644 drivers/net/tun.c:3505)
[   47.102826]  __fput (fs/file_table.c:510)
[   47.102850]  task_work_run (kernel/task_work.c:233)
[   47.102874]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:976)
[   47.102896]  do_group_exit (kernel/exit.c:1119)
[   47.102916]  get_signal (kernel/signal.c:3037)
[   47.102941]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[   47.102968]  exit_to_user_mode_loop (kernel/entry/common.c:64 kernel/entry/common.c:98)
[   47.103000]  do_syscall_64 (./include/linux/irq-entry-common.h:207 ./include/linux/irq-entry-common.h:230 ./include/linux/entry-common.h:318 arch/x86/entry/syscall_64.c:100)
[   47.103023]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.103054] RIP: 0033:0x4c2d9e
[   47.103074] Code: Unable to access opcode bytes at 0x4c2d74.

Code starting with the faulting instruction
===========================================
[   47.103108] RSP: 002b:00007fffbe865d20 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   47.103149] RAX: 0000000000000014 RBX: 0000000000000016 RCX: 00000000004c2d9e
[   47.103190] RDX: 0000000000000014 RSI: 00007fffbe865e00 RDI: 0000000000000007
[   47.103235] RBP: 00007fffbe865d30 R08: 00007fffbe865dc0 R09: 000000000000000c
[   47.103279] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000248a4cc0
[   47.103324] R13: 00007fffbe866948 R14: 00007fffbe865ef0 R15: 0000000000543540
| [   47.110471] ------------[ cut here ]------------
| [   47.110519] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/65
| [   47.110583] Modules linked in:
| [   47.110650] Tainted: [W]=WARN
[   47.110671] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.110706] Workqueue: netns cleanup_net
[   47.110728] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.110756] 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
[   47.110851] RSP: 0018:ff4e05be4023fc78 EFLAGS: 00010286
[   47.110877] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.110910] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3b34f241de8100
[   47.110957] RBP: 0000000000000000 R08: ff3b34f243338b50 R09: ff3b34f2432b382c
[   47.111000] R10: ff3b34f2430c5118 R11: fefefefefefefeff R12: 0000000000000000
[   47.111043] R13: 0000000000000011 R14: ff3b34f2430c5000 R15: ff3b34f241de8100
[   47.111092] FS:  0000000000000000(0000) GS:ff3b34f2d1a96000(0000) knlGS:0000000000000000
[   47.111138] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.111168] CR2: 00007fd36ec62f98 CR3: 0000000002f62006 CR4: 0000000000771ef0
[   47.111207] PKRU: 55555554
[   47.111222] Call Trace:
[   47.111237]  <TASK>
[   47.111252]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.111282]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   47.111310]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   47.111331]  cleanup_net (net/core/net_namespace.c:702)
[   47.111354]  process_one_work (kernel/workqueue.c:3314)
[   47.111378]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.111401]  ? rescuer_thread (kernel/workqueue.c:3672)
[   47.111427]  kthread (kernel/kthread.c:436)
[   47.111449]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   47.111471]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.111494]  ? 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