[   47.681717] ------------[ cut here ]------------
[   47.681808] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: unshare/203
[   47.681904] Modules linked in:
[   47.681973] CPU: 2 UID: 0 PID: 203 Comm: unshare Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.682066] Tainted: [W]=WARN
[   47.682120] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.682191] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   47.682255] 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
[   47.682392] RSP: 0018:ff60724180447cc8 EFLAGS: 00010286
[   47.682461] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.682538] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff29a2600182d100
[   47.682616] RBP: 0000000000000000 R08: ff29a26003241ed0 R09: ff29a260032d802c
[   47.682693] R10: ff29a260032db118 R11: fefefefefefefeff R12: 0000000000000000
[   47.682771] R13: 0000000000000010 R14: ff29a260032db000 R15: ff29a2600182d100
[   47.682851] FS:  00007f48beb62740(0000) GS:ff29a26083996000(0000) knlGS:0000000000000000
[   47.682932] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.683009] CR2: 00007f48bed24280 CR3: 0000000004e62003 CR4: 0000000000771ef0
[   47.683092] PKRU: 55555554
[   47.683141] Call Trace:
[   47.683191]  <TASK>
[   47.683241]  rtmsg_ifinfo+0x3c/0xa0
[   47.683299]  register_netdevice+0x889/0x9f0
[   47.683360]  register_netdev+0x1e/0x30
[   47.683426]  loopback_net_init+0x57/0xb0
[   47.683486]  ? vsock_sysctl_init_net+0xb6/0x140
[   47.683553]  ops_init+0x68/0x140
[   47.683642]  setup_net+0x85/0x150
[   47.683699]  copy_net_ns+0xf5/0x200
[   47.683757]  create_new_namespaces+0x117/0x2f0
[   47.683852]  unshare_nsproxy_namespaces+0x85/0xb0
[   47.683917]  ksys_unshare+0x346/0x5e0
[   47.683991]  __x64_sys_unshare+0x12/0x20
[   47.684048]  do_syscall_64+0x104/0xfc0
[   47.684107]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   47.684172] RIP: 0033:0x7f48bec5dbcb
[   47.684229] 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
[   47.684421] RSP: 002b:00007ffc156906d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[   47.684502] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f48bec5dbcb
[   47.684577] RDX: 0000000000000000 RSI: 00007ffc15690440 RDI: 0000000040000000
[   47.684654] RBP: 00007ffc15690a60 R08: 00007ffc15690630 R09: 0000000000000000
[   47.684732] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[   47.684813] R13: 0000000000000000 R14: 00000000ffffffff R15: 000055ee12836b68
[   47.684925]  </TASK>
[   47.684982] ---[ end trace 0000000000000000 ]---
[   47.685709] ------------[ cut here ]------------
[   47.685780] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/203
[   47.685869] Modules linked in:
[   47.685926] CPU: 2 UID: 0 PID: 203 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.686053] Tainted: [W]=WARN
[   47.686109] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.686180] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   47.686243] 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
[   47.686384] RSP: 0018:ff60724180447d68 EFLAGS: 00010286
[   47.686453] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.686529] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff29a2600182d100
[   47.686608] RBP: 0000000000000000 R08: ff29a26003114450 R09: ff29a260032df030
[   47.686684] R10: ff29a26001840118 R11: fefefefefefefeff R12: 0000000000000000
[   47.686761] R13: 0000000000000010 R14: ff29a26001840000 R15: ff29a2600182d100
[   47.686841] FS:  0000000031aca400(0000) GS:ff29a26083996000(0000) knlGS:0000000000000000
[   47.686921] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.686997] CR2: 00007f3b08dd5000 CR3: 0000000003353004 CR4: 0000000000771ef0
[   47.687077] PKRU: 55555554
[   47.687125] Call Trace:
[   47.687174]  <TASK>
[   47.687223]  rtmsg_ifinfo+0x3c/0xa0
[   47.687280]  register_netdevice+0x889/0x9f0
[   47.687352]  __tun_chr_ioctl+0x83c/0x16c0
[   47.687420]  ? do_sys_openat2+0x9a/0xe0
[   47.687480]  __x64_sys_ioctl+0xa1/0xe0
[   47.687541]  do_syscall_64+0x104/0xfc0
[   47.687600]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   47.687665] RIP: 0033:0x47cc8d
[   47.687721] 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
[   47.687856] RSP: 002b:00007ffe9df074f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   47.687935] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[   47.688028] RDX: 00007ffe9df07570 RSI: 00000000400454ca RDI: 0000000000000005
[   47.688133] RBP: 00007ffe9df07540 R08: 0000000000000000 R09: 0000000000000000
[   47.688210] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe9df07a48
[   47.688289] R13: 00007ffe9df07ac8 R14: 0000000000000002 R15: 0000000000543540
[   47.688373]  </TASK>
[   47.688432] ---[ end trace 0000000000000000 ]---
[   47.688521] ------------[ cut here ]------------
[   47.688584] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/203
[   47.688673] Modules linked in:
[   47.688732] CPU: 2 UID: 0 PID: 203 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.688839] Tainted: [W]=WARN
[   47.688928] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.689024] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   47.689097] 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
[   47.689268] RSP: 0018:ff60724180447d60 EFLAGS: 00010286
[   47.689357] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[   47.689447] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff29a2600182d100
[   47.689571] RBP: 0000000000000002 R08: ff29a26003114450 R09: ff29a260032df030
[   47.689662] R10: ff29a26001840118 R11: fefefefefefefeff R12: 0000000000000000
[   47.689741] R13: 0000000000000010 R14: ff29a26001840000 R15: ff29a2600182d100
[   47.689825] FS:  0000000031aca400(0000) GS:ff29a26083996000(0000) knlGS:0000000000000000
[   47.689905] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.689983] CR2: 00007f3b08dd5000 CR3: 0000000003353004 CR4: 0000000000771ef0
[   47.690063] PKRU: 55555554
[   47.690111] Call Trace:
[   47.690159]  <TASK>
[   47.690208]  rtnetlink_event+0x6e/0xb0
[   47.690265]  notifier_call_chain+0x6d/0x100
[   47.690324]  netdev_update_features+0x56/0x60
[   47.690391]  __tun_chr_ioctl+0xbf1/0x16c0
[   47.690454]  ? file_init_path+0x62/0x120
[   47.690513]  __x64_sys_ioctl+0xa1/0xe0
[   47.690571]  do_syscall_64+0x104/0xfc0
[   47.690629]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   47.690693] RIP: 0033:0x47cc8d
[   47.690750] 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
[   47.690886] RSP: 002b:00007ffe9df07530 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   47.690972] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[   47.691049] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[   47.691126] RBP: 00007ffe9df07580 R08: 0000000000000000 R09: 0000000000000000
[   47.691203] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe9df07a48
[   47.691280] R13: 00007ffe9df07ac8 R14: 0000000000000002 R15: 0000000000543540
[   47.691361]  </TASK>
[   47.691409] ---[ end trace 0000000000000000 ]---
[   47.691506] ------------[ cut here ]------------
[   47.691569] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/203
[   47.691657] Modules linked in:
[   47.691714] CPU: 2 UID: 0 PID: 203 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.691807] Tainted: [W]=WARN
[   47.691862] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.691932] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   47.692002] 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
[   47.692138] RSP: 0018:ff60724180447c10 EFLAGS: 00010286
[   47.692202] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[   47.692279] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff29a2600182d100
[   47.692358] RBP: 0000000000000000 R08: ff29a26003114450 R09: ff29a26006be9030
[   47.692443] R10: ff29a26001840118 R11: fefefefefefefeff R12: 0000000000000000
[   47.692521] R13: 0000000000000010 R14: ff29a26001840000 R15: ff29a2600182d100
[   47.692602] FS:  0000000031aca400(0000) GS:ff29a26083996000(0000) knlGS:0000000000000000
[   47.692681] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.692751] CR2: 00007f3b08dd5000 CR3: 0000000003353004 CR4: 0000000000771ef0
[   47.692830] PKRU: 55555554
[   47.692877] Call Trace:
[   47.692925]  <TASK>
[   47.692981]  rtmsg_ifinfo+0x3c/0xa0
[   47.693038]  __dev_notify_flags+0xb1/0xf0
[   47.693096]  netif_change_flags+0x54/0x70
[   47.693153]  dev_change_flags+0x45/0x80
[   47.693210]  devinet_ioctl+0x607/0x7f0
[   47.693269]  inet_ioctl+0x229/0x240
[   47.693326]  ? __rtnl_unlock+0x35/0x60
[   47.693387]  sock_do_ioctl+0x75/0x140
[   47.693453]  __x64_sys_ioctl+0xa1/0xe0
[   47.693510]  do_syscall_64+0x104/0xfc0
[   47.693568]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   47.693632] RIP: 0033:0x47cc8d
[   47.693688] 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
[   47.693820] RSP: 002b:00007ffe9df07510 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   47.693899] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[   47.693982] RDX: 00007ffe9df07580 RSI: 0000000000008914 RDI: 0000000000000006
[   47.694058] RBP: 00007ffe9df07560 R08: 0000000000000000 R09: 0000000000000000
[   47.694136] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe9df07a48
[   47.694213] R13: 00007ffe9df07ac8 R14: 0000000000000002 R15: 0000000000543540
[   47.694290]  </TASK>
[   47.694338] ---[ end trace 0000000000000000 ]---
[   92.666185] ------------[ cut here ]------------
[   92.666288] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/203
[   92.666413] Modules linked in:
[   92.666467] CPU: 2 UID: 0 PID: 203 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   92.666563] Tainted: [W]=WARN
[   92.666618] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.666695] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   92.666762] 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
[   92.666894] RSP: 0018:ff60724180447b58 EFLAGS: 00010286
[   92.666973] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[   92.667049] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff29a26003111000
[   92.667125] RBP: 0000000000000000 R08: ff29a26003114450 R09: ff29a26006be9030
[   92.667200] R10: ff29a26001840118 R11: fefefefefefefeff R12: 0000000000000000
[   92.667293] R13: 0000000000000010 R14: ff29a26001840000 R15: ff29a26003111000
[   92.667427] FS:  0000000000000000(0000) GS:ff29a26083996000(0000) knlGS:0000000000000000
[   92.667544] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.667625] CR2: 00007f3b08dd5000 CR3: 000000001a642006 CR4: 0000000000771ef0
[   92.667759] PKRU: 55555554
[   92.667823] Call Trace:
[   92.667882]  <TASK>
[   92.667947]  rtmsg_ifinfo+0x3c/0xa0
[   92.668250]  netif_close_many+0xed/0x190
[   92.668333]  unregister_netdevice_many_notify+0x267/0x9d0
[   92.668422]  ? __queue_work+0x141/0x550
[   92.668498]  unregister_netdevice_queue+0x9e/0xd0
[   92.668575]  __tun_detach+0x591/0x5b0
[   92.668653]  tun_chr_close+0x3f/0xc0
[   92.668742]  __fput+0xe8/0x2c0
[   92.668817]  task_work_run+0x63/0xa0
[   92.668884]  do_exit+0x2c1/0xba0
[   92.668941]  do_group_exit+0x2d/0xc0
[   92.669002]  ? __sys_sendto+0x194/0x220
[   92.669059]  get_signal+0x82e/0x900
[   92.669117]  arch_do_signal_or_restart+0x77/0x2b0
[   92.669184]  exit_to_user_mode_loop+0x75/0x4a0
[   92.669251]  do_syscall_64+0x439/0xfc0
[   92.669310]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   92.669377] RIP: 0033:0x4c2d9e
[   92.669434] Code: Unable to access opcode bytes at 0x4c2d74.
[   92.669503] RSP: 002b:00007ffe9df06ea0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   92.669580] RAX: 0000000000000014 RBX: 0000000000000016 RCX: 00000000004c2d9e
[   92.669657] RDX: 0000000000000014 RSI: 00007ffe9df06f80 RDI: 0000000000000007
[   92.669742] RBP: 00007ffe9df06eb0 R08: 00007ffe9df06f40 R09: 000000000000000c
[   92.669818] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000031ad4600
[   92.669894] R13: 00007ffe9df07ac8 R14: 00007ffe9df07070 R15: 0000000000543540
[   92.669978]  </TASK>
[   92.670026] ---[ end trace 0000000000000000 ]---
[   92.670185] ------------[ cut here ]------------
[   92.670223] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/203
[   92.670281] Modules linked in:
[   92.670304] CPU: 3 UID: 0 PID: 203 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   92.670365] Tainted: [W]=WARN
[   92.670388] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.670424] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   92.670450] 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
[   92.670553] RSP: 0018:ff60724180447bc8 EFLAGS: 00010286
[   92.670582] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   92.670624] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff29a26003104600
[   92.670668] RBP: 0000000000000000 R08: ff29a26003114450 R09: ff29a260068f6830
[   92.670716] R10: ff29a26001840118 R11: fefefefefefefeff R12: 0000000000000000
[   92.670750] R13: 0000000000000011 R14: ff29a26001840000 R15: ff29a26003104600
[   92.670804] FS:  0000000000000000(0000) GS:ff29a26083a16000(0000) knlGS:0000000000000000
[   92.670848] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.670878] CR2: 00007f9a62727680 CR3: 000000001a642005 CR4: 0000000000771ef0
[   92.670921] PKRU: 55555554
[   92.670936] Call Trace:
[   92.670951]  <TASK>
[   92.670969]  unregister_netdevice_many_notify+0x877/0x9d0
[   92.670997]  unregister_netdevice_queue+0x9e/0xd0
[   92.671028]  __tun_detach+0x591/0x5b0
[   92.671052]  tun_chr_close+0x3f/0xc0
[   92.671075]  __fput+0xe8/0x2c0
[   92.671100]  task_work_run+0x63/0xa0
[   92.671124]  do_exit+0x2c1/0xba0
[   92.671147]  do_group_exit+0x2d/0xc0
[   92.671170]  ? __sys_sendto+0x194/0x220
[   92.671192]  get_signal+0x82e/0x900
[   92.671213]  arch_do_signal_or_restart+0x77/0x2b0
[   92.671238]  exit_to_user_mode_loop+0x75/0x4a0
[   92.671268]  do_syscall_64+0x439/0xfc0
[   92.671292]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   92.671316] RIP: 0033:0x4c2d9e
[   92.671337] Code: Unable to access opcode bytes at 0x4c2d74.
[   92.671374] RSP: 002b:00007ffe9df06ea0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   92.671419] RAX: 0000000000000014 RBX: 0000000000000016 RCX: 00000000004c2d9e
[   92.671459] RDX: 0000000000000014 RSI: 00007ffe9df06f80 RDI: 0000000000000007
[   92.671503] RBP: 00007ffe9df06eb0 R08: 00007ffe9df06f40 R09: 000000000000000c
[   92.671551] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000031ad4600
[   92.671594] R13: 00007ffe9df07ac8 R14: 00007ffe9df07070 R15: 0000000000543540
[   92.671639]  </TASK>
[   92.671653] ---[ end trace 0000000000000000 ]---
[   92.681087] ------------[ cut here ]------------
[   92.681120] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: kworker/u16:1/64
[   92.681181] Modules linked in:
[   92.681204] CPU: 3 UID: 0 PID: 64 Comm: kworker/u16:1 Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   92.681261] Tainted: [W]=WARN
[   92.681284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.681319] Workqueue: netns cleanup_net
[   92.681345] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   92.681379] 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
[   92.681461] RSP: 0018:ff60724180237c78 EFLAGS: 00010286
[   92.681490] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   92.681538] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff29a26003104600
[   92.681580] RBP: 0000000000000000 R08: ff29a26003241ed0 R09: ff29a26004c2e82c
[   92.681626] R10: ff29a260032db118 R11: fefefefefefefeff R12: 0000000000000000
[   92.681675] R13: 0000000000000011 R14: ff29a260032db000 R15: ff29a26003104600
[   92.681724] FS:  0000000000000000(0000) GS:ff29a26083a16000(0000) knlGS:0000000000000000
[   92.681770] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.681802] CR2: 00007fb1c3792f98 CR3: 000000001a642005 CR4: 0000000000771ef0
[   92.681845] PKRU: 55555554
[   92.681860] Call Trace:
[   92.681874]  <TASK>
[   92.681891]  unregister_netdevice_many_notify+0x877/0x9d0
[   92.681921]  default_device_exit_batch+0x318/0x390
[   92.681949]  ops_undo_list+0x10b/0x240
[   92.681977]  cleanup_net+0x1d7/0x2e0
[   92.682001]  process_one_work+0x162/0x360
[   92.682025]  worker_thread+0x16e/0x2d0
[   92.682049]  ? rescuer_thread+0x510/0x510
[   92.682071]  kthread+0xe1/0x120
[   92.682094]  ? kthread_park+0xa0/0xa0
[   92.682116]  ret_from_fork+0x16d/0x250
[   92.682135]  ? kthread_park+0xa0/0xa0
[   92.682157]  ret_from_fork_asm+0x11/0x20
[   92.682181]  </TASK>
[   92.682195] ---[ end trace 0000000000000000 ]---