[   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:
[   47.686449] CPU: 3 UID: 0 PID: 204 Comm: unshare Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.686497] Tainted: [W]=WARN
[   47.686520] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.686551] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   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
[   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+0x3c/0xa0
[   47.687098]  register_netdevice+0x889/0x9f0
[   47.687121]  register_netdev+0x1e/0x30
[   47.687144]  loopback_net_init+0x57/0xb0
[   47.687169]  ? vsock_sysctl_init_net+0xb6/0x140
[   47.687198]  ops_init+0x68/0x140
[   47.687221]  setup_net+0x85/0x150
[   47.687244]  copy_net_ns+0xf5/0x200
[   47.687264]  create_new_namespaces+0x117/0x2f0
[   47.687292]  unshare_nsproxy_namespaces+0x85/0xb0
[   47.687321]  ksys_unshare+0x346/0x5e0
[   47.687344]  __x64_sys_unshare+0x12/0x20
[   47.687365]  do_syscall_64+0x104/0xfc0
[   47.687389]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   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
[   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
[   47.687770]  </TASK>
[   47.687785] ---[ end trace 0000000000000000 ]---
[   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:
[   47.688542] CPU: 3 UID: 0 PID: 204 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.688600] Tainted: [W]=WARN
[   47.688620] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.688650] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   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
[   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+0x3c/0xa0
[   47.689209]  register_netdevice+0x889/0x9f0
[   47.689231]  __tun_chr_ioctl+0x83c/0x16c0
[   47.689254]  ? do_sys_openat2+0x9a/0xe0
[   47.689277]  __x64_sys_ioctl+0xa1/0xe0
[   47.689300]  do_syscall_64+0x104/0xfc0
[   47.689322]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   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
[   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
[   47.689702]  </TASK>
[   47.689717] ---[ end trace 0000000000000000 ]---
[   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:
[   47.689854] CPU: 3 UID: 0 PID: 204 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.689914] Tainted: [W]=WARN
[   47.689934] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.689970] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   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
[   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+0x6e/0xb0
[   47.690509]  notifier_call_chain+0x6d/0x100
[   47.690532]  netdev_update_features+0x56/0x60
[   47.690561]  __tun_chr_ioctl+0xbf1/0x16c0
[   47.690580]  ? file_init_path+0x62/0x120
[   47.690604]  __x64_sys_ioctl+0xa1/0xe0
[   47.690626]  do_syscall_64+0x104/0xfc0
[   47.690647]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   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
[   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
[   47.691022]  </TASK>
[   47.691038] ---[ end trace 0000000000000000 ]---
[   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:
[   47.691174] CPU: 3 UID: 0 PID: 204 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.691228] Tainted: [W]=WARN
[   47.691249] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.691285] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   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
[   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+0x3c/0xa0
[   47.691809]  __dev_notify_flags+0xb1/0xf0
[   47.691830]  netif_change_flags+0x54/0x70
[   47.691852]  dev_change_flags+0x45/0x80
[   47.691876]  devinet_ioctl+0x607/0x7f0
[   47.691907]  inet_ioctl+0x229/0x240
[   47.691930]  ? __rtnl_unlock+0x35/0x60
[   47.691953]  sock_do_ioctl+0x75/0x140
[   47.691979]  __x64_sys_ioctl+0xa1/0xe0
[   47.692001]  do_syscall_64+0x104/0xfc0
[   47.692023]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   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
[   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
[   47.692395]  </TASK>
[   47.692410] ---[ end trace 0000000000000000 ]---
[   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:
[   92.675382] CPU: 3 UID: 0 PID: 204 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   92.675441] Tainted: [W]=WARN
[   92.675464] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.675500] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   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
[   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+0x3c/0xa0
[   92.676282]  netif_close_many+0xed/0x190
[   92.676304]  unregister_netdevice_many_notify+0x267/0x9d0
[   92.676332]  ? __queue_work+0x141/0x550
[   92.676355]  unregister_netdevice_queue+0x9e/0xd0
[   92.676380]  __tun_detach+0x591/0x5b0
[   92.676402]  tun_chr_close+0x3f/0xc0
[   92.676423]  __fput+0xe8/0x2c0
[   92.676448]  task_work_run+0x63/0xa0
[   92.676471]  do_exit+0x2c1/0xba0
[   92.676490]  ? netlink_unicast+0x273/0x3a0
[   92.676514]  do_group_exit+0x2d/0xc0
[   92.676535]  get_signal+0x82e/0x900
[   92.676558]  arch_do_signal_or_restart+0x77/0x2b0
[   92.676587]  exit_to_user_mode_loop+0x75/0x4a0
[   92.676615]  do_syscall_64+0x439/0xfc0
[   92.676638]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   92.676666] RIP: 0033:0x4c2d9e
[   92.676686] Code: Unable to access opcode bytes at 0x4c2d74.
[   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
[   92.676956]  </TASK>
[   92.676968] ---[ end trace 0000000000000000 ]---
[   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:
[   92.677170] CPU: 3 UID: 0 PID: 204 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   92.677225] Tainted: [W]=WARN
[   92.677244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.677277] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   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
[   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+0x877/0x9d0
[   92.677817]  unregister_netdevice_queue+0x9e/0xd0
[   92.677843]  __tun_detach+0x591/0x5b0
[   92.677861]  tun_chr_close+0x3f/0xc0
[   92.677881]  __fput+0xe8/0x2c0
[   92.677904]  task_work_run+0x63/0xa0
[   92.677924]  do_exit+0x2c1/0xba0
[   92.677943]  ? netlink_unicast+0x273/0x3a0
[   92.677965]  do_group_exit+0x2d/0xc0
[   92.677987]  get_signal+0x82e/0x900
[   92.678018]  arch_do_signal_or_restart+0x77/0x2b0
[   92.678044]  exit_to_user_mode_loop+0x75/0x4a0
[   92.678072]  do_syscall_64+0x439/0xfc0
[   92.678095]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   92.678120] RIP: 0033:0x4c2d9e
[   92.678140] Code: Unable to access opcode bytes at 0x4c2d74.
[   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
[   92.678407]  </TASK>
[   92.678421] ---[ end trace 0000000000000000 ]---
[   92.687130] ------------[ cut here ]------------
[   92.687169] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: kworker/u16:0/12
[   92.687229] Modules linked in:
[   92.687255] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   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+0xc8/0x110
[   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
[   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+0x877/0x9d0
[   92.687914]  default_device_exit_batch+0x318/0x390
[   92.687942]  ops_undo_list+0x10b/0x240
[   92.687968]  cleanup_net+0x1d7/0x2e0
[   92.688001]  process_one_work+0x162/0x360
[   92.688026]  worker_thread+0x16e/0x2d0
[   92.688048]  ? rescuer_thread+0x510/0x510
[   92.688067]  kthread+0xe1/0x120
[   92.688090]  ? kthread_park+0xa0/0xa0
[   92.688111]  ret_from_fork+0x16d/0x250
[   92.688135]  ? kthread_park+0xa0/0xa0
[   92.688156]  ret_from_fork_asm+0x11/0x20
[   92.688181]  </TASK>
[   92.688195] ---[ end trace 0000000000000000 ]---