======================================
| xx__-> [   47.686331] ------------[ cut here ]------------
| [   47.686377] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: unshare/204
| [   47.686428] Modules linked in:
| [   47.686497] Tainted: [W]=WARN
[   47.686520] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.686551] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.686581] 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
[   47.686671] RSP: 0018:ff80528640407cc8 EFLAGS: 00010286
[   47.686699] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.686738] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff28093d430c8800
[   47.686782] RBP: 0000000000000000 R08: ff28093d433dcd50 R09: ff28093d419bf02c
[   47.686822] R10: ff28093d419ba118 R11: fefefefefefefeff R12: 0000000000000000
[   47.686860] R13: 0000000000000010 R14: ff28093d419ba000 R15: ff28093d430c8800
[   47.686907] FS:  00007fe8ad62a740(0000) GS:ff28093ddba16000(0000) knlGS:0000000000000000
[   47.686948] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.686986] CR2: 00005618f582e008 CR3: 00000000032a1001 CR4: 0000000000771ef0
[   47.687027] PKRU: 55555554
[   47.687043] Call Trace:
[   47.687058]  <TASK>
[   47.687074]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   47.687098]  register_netdevice (net/core/dev.c:11488)
[   47.687121]  register_netdev (net/core/dev.c:11552)
[   47.687144]  loopback_net_init (drivers/net/loopback.c:218)
[   47.687169]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[   47.687198]  ops_init (net/core/net_namespace.c:137)
[   47.687221]  setup_net (net/core/net_namespace.c:446)
[   47.687244]  copy_net_ns (net/core/net_namespace.c:579)
[   47.687264]  create_new_namespaces (kernel/nsproxy.c:132)
[   47.687292]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   47.687321]  ksys_unshare (kernel/fork.c:3243)
[   47.687344]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   47.687365]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.687389]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.687417] RIP: 0033:0x7fe8ad725bcb
[   47.687439] 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
[   47.687528] RSP: 002b:00007ffc085f4138 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[   47.687567] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe8ad725bcb
[   47.687610] RDX: 0000000000000000 RSI: 00007ffc085f3ea0 RDI: 0000000040000000
[   47.687655] RBP: 00007ffc085f44c0 R08: 00007ffc085f4090 R09: 0000000000000000
[   47.687694] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[   47.687731] R13: 0000000000000000 R14: 00000000ffffffff R15: 00005618ca145b68
| [   47.688432] ------------[ cut here ]------------
| [   47.688468] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/204
| [   47.688519] Modules linked in:
| [   47.688600] Tainted: [W]=WARN
[   47.688620] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.688650] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.688678] 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
[   47.688767] RSP: 0018:ff80528640407d68 EFLAGS: 00010286
[   47.688797] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.688839] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff28093d430c8800
[   47.688886] RBP: 0000000000000000 R08: ff28093d433d3250 R09: ff28093d419bc030
[   47.688927] R10: ff28093d4300c118 R11: fefefefefefefeff R12: 0000000000000000
[   47.688968] R13: 0000000000000010 R14: ff28093d4300c000 R15: ff28093d430c8800
[   47.689019] FS:  0000000007786400(0000) GS:ff28093ddba16000(0000) knlGS:0000000000000000
[   47.689062] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.689104] CR2: 00007fe74814b000 CR3: 00000000033db002 CR4: 0000000000771ef0
[   47.689142] PKRU: 55555554
[   47.689157] Call Trace:
[   47.689173]  <TASK>
[   47.689187]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   47.689209]  register_netdevice (net/core/dev.c:11488)
[   47.689231]  __tun_chr_ioctl (drivers/net/tun.c:2876 drivers/net/tun.c:3157)
[   47.689254]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[   47.689277]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[   47.689300]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.689322]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.689350] RIP: 0033:0x47cc8d
[   47.689373] 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 
[   47.689462] RSP: 002b:00007ffe60963850 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   47.689502] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[   47.689543] RDX: 00007ffe609638d0 RSI: 00000000400454ca RDI: 0000000000000005
[   47.689582] RBP: 00007ffe609638a0 R08: 0000000000000000 R09: 0000000000000000
[   47.689621] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe60963da8
[   47.689664] R13: 00007ffe60963e28 R14: 0000000000000002 R15: 0000000000543540
| [   47.689757] ------------[ cut here ]------------
| [   47.689784] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/204
| [   47.689832] Modules linked in:
| [   47.689914] Tainted: [W]=WARN
[   47.689934] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.689970] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.689998] 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
[   47.690089] RSP: 0018:ff80528640407d60 EFLAGS: 00010286
[   47.690119] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[   47.690159] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff28093d430c8800
[   47.690196] RBP: 0000000000000002 R08: ff28093d433d3250 R09: ff28093d419bc030
[   47.690240] R10: ff28093d4300c118 R11: fefefefefefefeff R12: 0000000000000000
[   47.690277] R13: 0000000000000010 R14: ff28093d4300c000 R15: ff28093d430c8800
[   47.690320] FS:  0000000007786400(0000) GS:ff28093ddba16000(0000) knlGS:0000000000000000
[   47.690360] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.690395] CR2: 00007fe74814b000 CR3: 00000000033db002 CR4: 0000000000771ef0
[   47.690437] PKRU: 55555554
[   47.690453] Call Trace:
[   47.690466]  <TASK>
[   47.690487]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[   47.690509]  notifier_call_chain (kernel/notifier.c:85)
[   47.690532]  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)
[   47.690561]  __tun_chr_ioctl (drivers/net/tun.c:2963 drivers/net/tun.c:3285)
[   47.690580]  ? file_init_path (./include/linux/pagemap.h:126 fs/file_table.c:368)
[   47.690604]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[   47.690626]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.690647]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.690675] RIP: 0033:0x47cc8d
[   47.690696] 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 
[   47.690785] RSP: 002b:00007ffe60963890 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   47.690826] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[   47.690863] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[   47.690905] RBP: 00007ffe609638e0 R08: 0000000000000005 R09: 0000000000000003
[   47.690941] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe60963da8
[   47.690979] R13: 00007ffe60963e28 R14: 0000000000000002 R15: 0000000000543540
| [   47.691080] ------------[ cut here ]------------
| [   47.691107] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/204
| [   47.691152] Modules linked in:
| [   47.691228] Tainted: [W]=WARN
[   47.691249] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.691285] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.691313] 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
[   47.691401] RSP: 0018:ff80528640407c10 EFLAGS: 00010286
[   47.691428] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[   47.691465] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff28093d430c8800
[   47.691510] RBP: 0000000000000000 R08: ff28093d433d3250 R09: ff28093d4461a030
[   47.691549] R10: ff28093d4300c118 R11: fefefefefefefeff R12: 0000000000000000
[   47.691591] R13: 0000000000000010 R14: ff28093d4300c000 R15: ff28093d430c8800
[   47.691632] FS:  0000000007786400(0000) GS:ff28093ddba16000(0000) knlGS:0000000000000000
[   47.691673] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.691706] CR2: 00007fe74814b000 CR3: 00000000033db002 CR4: 0000000000771ef0
[   47.691747] PKRU: 55555554
[   47.691760] Call Trace:
[   47.691772]  <TASK>
[   47.691789]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   47.691809]  __dev_notify_flags (net/core/dev.c:9787)
[   47.691830]  netif_change_flags (net/core/dev.c:9820)
[   47.691852]  dev_change_flags (net/core/dev_api.c:68)
[   47.691876]  devinet_ioctl (net/ipv4/devinet.c:1199)
[   47.691907]  inet_ioctl (net/ipv4/af_inet.c:1011)
[   47.691930]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   47.691953]  sock_do_ioctl (net/socket.c:1313)
[   47.691979]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[   47.692001]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.692023]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.692050] RIP: 0033:0x47cc8d
[   47.692072] 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 
[   47.692161] RSP: 002b:00007ffe60963870 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   47.692198] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[   47.692234] RDX: 00007ffe609638e0 RSI: 0000000000008914 RDI: 0000000000000006
[   47.692273] RBP: 00007ffe609638c0 R08: 0000000000000005 R09: 0000000000000003
[   47.692313] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe60963da8
[   47.692352] R13: 00007ffe60963e28 R14: 0000000000000002 R15: 0000000000543540
| [   92.675199] ------------[ cut here ]------------
| [   92.675283] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/204
| [   92.675356] Modules linked in:
| [   92.675441] Tainted: [W]=WARN
[   92.675464] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.675500] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.675533] 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
[   92.675632] RSP: 0018:ff80528640407b58 EFLAGS: 00010286
[   92.675659] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[   92.675702] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff28093d430d4200
[   92.675745] RBP: 0000000000000000 R08: ff28093d433d3250 R09: ff28093d44619030
[   92.675784] R10: ff28093d4300c118 R11: fefefefefefefeff R12: 0000000000000000
[   92.675824] R13: 0000000000000010 R14: ff28093d4300c000 R15: ff28093d430d4200
[   92.675868] FS:  0000000000000000(0000) GS:ff28093ddba16000(0000) knlGS:0000000000000000
[   92.675915] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.675950] CR2: 00007fe74814b000 CR3: 0000000035042004 CR4: 0000000000771ef0
[   92.676196] PKRU: 55555554
[   92.676221] Call Trace:
[   92.676237]  <TASK>
[   92.676256]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   92.676282]  netif_close_many (net/core/dev.c:1804)
[   92.676304]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   92.676332]  ? __queue_work (kernel/workqueue.c:2401)
[   92.676355]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[   92.676380]  __tun_detach (./include/linux/netdevice.h:3455 drivers/net/tun.c:628)
[   92.676402]  tun_chr_close (drivers/net/tun.c:644 drivers/net/tun.c:3505)
[   92.676423]  __fput (fs/file_table.c:510)
[   92.676448]  task_work_run (kernel/task_work.c:233)
[   92.676471]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:976)
[   92.676490]  ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1345)
[   92.676514]  do_group_exit (kernel/exit.c:1119)
[   92.676535]  get_signal (kernel/signal.c:3037)
[   92.676558]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[   92.676587]  exit_to_user_mode_loop (kernel/entry/common.c:64 kernel/entry/common.c:98)
[   92.676615]  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)
[   92.676638]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   92.676666] RIP: 0033:0x4c2d9e
[   92.676686] Code: Unable to access opcode bytes at 0x4c2d74.

Code starting with the faulting instruction
===========================================
[   92.676717] RSP: 002b:00007ffe60963200 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   92.676761] RAX: 0000000000000014 RBX: 0000000000000012 RCX: 00000000004c2d9e
[   92.676801] RDX: 0000000000000014 RSI: 00007ffe609632e0 RDI: 0000000000000007
[   92.676839] RBP: 00007ffe60963210 R08: 00007ffe609632a0 R09: 000000000000000c
[   92.676879] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe60963da8
[   92.676915] R13: 00007ffe60963e28 R14: 00007ffe609633d0 R15: 0000000000543540
| [   92.677070] ------------[ cut here ]------------
| [   92.677101] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/204
| [   92.677148] Modules linked in:
| [   92.677225] Tainted: [W]=WARN
[   92.677244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.677277] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.677310] 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
[   92.677398] RSP: 0018:ff80528640407bc8 EFLAGS: 00010286
[   92.677423] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   92.677466] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff28093d430d4200
[   92.677503] RBP: 0000000000000000 R08: ff28093d433d3250 R09: ff28093d4609e830
[   92.677543] R10: ff28093d4300c118 R11: fefefefefefefeff R12: 0000000000000000
[   92.677585] R13: 0000000000000011 R14: ff28093d4300c000 R15: ff28093d430d4200
[   92.677629] FS:  0000000000000000(0000) GS:ff28093ddba16000(0000) knlGS:0000000000000000
[   92.677671] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.677706] CR2: 00007fe74814b000 CR3: 0000000035042004 CR4: 0000000000771ef0
[   92.677748] PKRU: 55555554
[   92.677760] Call Trace:
[   92.677776]  <TASK>
[   92.677789]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   92.677817]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[   92.677843]  __tun_detach (./include/linux/netdevice.h:3455 drivers/net/tun.c:628)
[   92.677861]  tun_chr_close (drivers/net/tun.c:644 drivers/net/tun.c:3505)
[   92.677881]  __fput (fs/file_table.c:510)
[   92.677904]  task_work_run (kernel/task_work.c:233)
[   92.677924]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:976)
[   92.677943]  ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1345)
[   92.677965]  do_group_exit (kernel/exit.c:1119)
[   92.677987]  get_signal (kernel/signal.c:3037)
[   92.678018]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[   92.678044]  exit_to_user_mode_loop (kernel/entry/common.c:64 kernel/entry/common.c:98)
[   92.678072]  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)
[   92.678095]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   92.678120] RIP: 0033:0x4c2d9e
[   92.678140] Code: Unable to access opcode bytes at 0x4c2d74.

Code starting with the faulting instruction
===========================================
[   92.678172] RSP: 002b:00007ffe60963200 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   92.678211] RAX: 0000000000000014 RBX: 0000000000000012 RCX: 00000000004c2d9e
[   92.678248] RDX: 0000000000000014 RSI: 00007ffe609632e0 RDI: 0000000000000007
[   92.678284] RBP: 00007ffe60963210 R08: 00007ffe609632a0 R09: 000000000000000c
[   92.678324] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe60963da8
[   92.678362] R13: 00007ffe60963e28 R14: 00007ffe609633d0 R15: 0000000000543540
| [   92.687130] ------------[ cut here ]------------
| [   92.687169] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: 0/12
| [   92.687229] Modules linked in:
| [   92.687308] Tainted: [W]=WARN
[   92.687326] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.687361] Workqueue: netns cleanup_net
[   92.687385] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.687415] 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
[   92.687512] RSP: 0018:ff80528640067c78 EFLAGS: 00010286
[   92.687543] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   92.687579] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff28093d430d4300
[   92.687618] RBP: 0000000000000000 R08: ff28093d433dcd50 R09: ff28093d4609882c
[   92.687656] R10: ff28093d419ba118 R11: fefefefefefefeff R12: 0000000000000000
[   92.687696] R13: 0000000000000011 R14: ff28093d419ba000 R15: ff28093d430d4300
[   92.687740] FS:  0000000000000000(0000) GS:ff28093ddb916000(0000) knlGS:0000000000000000
[   92.687780] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.687810] CR2: 00007fa904fca680 CR3: 0000000002e9a002 CR4: 0000000000771ef0
[   92.687846] PKRU: 55555554
[   92.687858] Call Trace:
[   92.687874]  <TASK>
[   92.687888]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   92.687914]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   92.687942]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   92.687968]  cleanup_net (net/core/net_namespace.c:702)
[   92.688001]  process_one_work (kernel/workqueue.c:3314)
[   92.688026]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   92.688048]  ? rescuer_thread (kernel/workqueue.c:3672)
[   92.688067]  kthread (kernel/kthread.c:436)
[   92.688090]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   92.688111]  ret_from_fork (arch/x86/kernel/process.c:158)
[   92.688135]  ? 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