[    2.209247] ------------[ cut here ]------------
[    2.209334] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: unshare/158
[    2.209437] Modules linked in:
[    2.209505] CPU: 2 UID: 0 PID: 158 Comm: unshare Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.209592] Tainted: [W]=WARN
[    2.209662] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.209749] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.209815] 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
[    2.209953] RSP: 0018:ff6b73adc03efcc8 EFLAGS: 00010286
[    2.210032] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.210128] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1c7230831eab00
[    2.210226] RBP: 0000000000000000 R08: ff1c72308315dd90 R09: ff1c723084a9202c
[    2.210313] R10: ff1c72308311d118 R11: fefefefefefefeff R12: 0000000000000000
[    2.210399] R13: 0000000000000010 R14: ff1c72308311d000 R15: ff1c7230831eab00
[    2.210487] FS:  00007fc01da44740(0000) GS:ff1c723122196000(0000) knlGS:0000000000000000
[    2.210584] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.210653] CR2: 00005639cf727310 CR3: 0000000003344003 CR4: 0000000000771ef0
[    2.210735] PKRU: 55555554
[    2.210783] Call Trace:
[    2.210834]  <TASK>
[    2.210883]  rtmsg_ifinfo+0x3c/0xa0
[    2.210939]  register_netdevice+0x889/0x9f0
[    2.211002]  register_netdev+0x1e/0x30
[    2.211059]  loopback_net_init+0x57/0xb0
[    2.211127]  ? vsock_sysctl_init_net+0xb6/0x140
[    2.211198]  ops_init+0x68/0x140
[    2.211257]  setup_net+0x85/0x150
[    2.211314]  copy_net_ns+0xf5/0x200
[    2.211371]  create_new_namespaces+0x117/0x2f0
[    2.211436]  unshare_nsproxy_namespaces+0x85/0xb0
[    2.211500]  ksys_unshare+0x346/0x5e0
[    2.211559]  __x64_sys_unshare+0x12/0x20
[    2.211617]  do_syscall_64+0x104/0xfc0
[    2.211676]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.211741] RIP: 0033:0x7fc01db3fbcb
[    2.211798] 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
[    2.211930] RSP: 002b:00007ffdc7a5b338 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[    2.212009] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc01db3fbcb
[    2.212092] RDX: 0000000000000000 RSI: 00007ffdc7a5b0a0 RDI: 0000000040000000
[    2.212174] RBP: 00007ffdc7a5b6c0 R08: 00007ffdc7a5b290 R09: 0000000000000000
[    2.212251] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[    2.212328] R13: 0000000000000000 R14: 00000000ffffffff R15: 00005639cf72ab68
[    2.212406]  </TASK>
[    2.212453] ---[ end trace 0000000000000000 ]---
[    2.215715] ------------[ cut here ]------------
[    2.215783] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/158
[    2.215870] Modules linked in:
[    2.215926] CPU: 2 UID: 0 PID: 158 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.216018] Tainted: [W]=WARN
[    2.216073] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.216156] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.216220] 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
[    2.216353] RSP: 0018:ff6b73adc03efd68 EFLAGS: 00010286
[    2.216415] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.216493] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1c7230831eab00
[    2.216568] RBP: 0000000000000000 R08: ff1c723084821850 R09: ff1c723084a97030
[    2.216645] R10: ff1c723084934118 R11: fefefefefefefeff R12: 0000000000000000
[    2.216723] R13: 0000000000000010 R14: ff1c723084934000 R15: ff1c7230831eab00
[    2.216805] FS:  000000001e239400(0000) GS:ff1c723122196000(0000) knlGS:0000000000000000
[    2.216884] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.216953] CR2: 00007f45262c3000 CR3: 0000000001eaf004 CR4: 0000000000771ef0
[    2.217031] PKRU: 55555554
[    2.217079] Call Trace:
[    2.217137]  <TASK>
[    2.217191]  rtmsg_ifinfo+0x3c/0xa0
[    2.217248]  register_netdevice+0x889/0x9f0
[    2.217306]  __tun_chr_ioctl+0x83c/0x16c0
[    2.217365]  ? do_sys_openat2+0x9a/0xe0
[    2.217424]  __x64_sys_ioctl+0xa1/0xe0
[    2.217483]  do_syscall_64+0x104/0xfc0
[    2.217541]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.217605] RIP: 0033:0x47cc8d
[    2.217661] 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
[    2.217793] RSP: 002b:00007ffd49737ef0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.217871] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.217948] RDX: 00007ffd49737f70 RSI: 00000000400454ca RDI: 0000000000000005
[    2.218026] RBP: 00007ffd49737f40 R08: 0000000000000000 R09: 0000000000000000
[    2.218109] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd49738448
[    2.218198] R13: 00007ffd497384c8 R14: 0000000000000002 R15: 0000000000543540
[    2.218274]  </TASK>
[    2.218322] ---[ end trace 0000000000000000 ]---
[    2.218403] ------------[ cut here ]------------
[    2.218465] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/158
[    2.218553] Modules linked in:
[    2.218609] CPU: 2 UID: 0 PID: 158 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.218701] Tainted: [W]=WARN
[    2.218756] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.218825] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.218889] 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
[    2.219023] RSP: 0018:ff6b73adc03efd60 EFLAGS: 00010286
[    2.219094] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[    2.219178] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1c7230831eab00
[    2.219254] RBP: 0000000000000002 R08: ff1c723084821850 R09: ff1c723084a97030
[    2.219330] R10: ff1c723084934118 R11: fefefefefefefeff R12: 0000000000000000
[    2.219408] R13: 0000000000000010 R14: ff1c723084934000 R15: ff1c7230831eab00
[    2.219488] FS:  000000001e239400(0000) GS:ff1c723122196000(0000) knlGS:0000000000000000
[    2.219569] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.219642] CR2: 00007f45262c3000 CR3: 0000000001eaf004 CR4: 0000000000771ef0
[    2.219722] PKRU: 55555554
[    2.219771] Call Trace:
[    2.219819]  <TASK>
[    2.219867]  rtnetlink_event+0x6e/0xb0
[    2.219924]  notifier_call_chain+0x6d/0x100
[    2.219983]  netdev_update_features+0x56/0x60
[    2.220047]  __tun_chr_ioctl+0xbf1/0x16c0
[    2.220111]  ? file_init_path+0x62/0x120
[    2.220175]  __x64_sys_ioctl+0xa1/0xe0
[    2.220232]  do_syscall_64+0x104/0xfc0
[    2.220289]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.220353] RIP: 0033:0x47cc8d
[    2.220409] 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
[    2.220543] RSP: 002b:00007ffd49737f30 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.220621] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.220698] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[    2.220775] RBP: 00007ffd49737f80 R08: 0000000000000004 R09: 00007ffd49737f00
[    2.220851] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd49738448
[    2.220927] R13: 00007ffd497384c8 R14: 0000000000000002 R15: 0000000000543540
[    2.221005]  </TASK>
[    2.221053] ---[ end trace 0000000000000000 ]---
[    2.221140] ------------[ cut here ]------------
[    2.221205] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/158
[    2.221291] Modules linked in:
[    2.221348] CPU: 2 UID: 0 PID: 158 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.221437] Tainted: [W]=WARN
[    2.221492] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.221561] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.221624] 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
[    2.221756] RSP: 0018:ff6b73adc03efc10 EFLAGS: 00010286
[    2.221819] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.221895] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1c7230831eab00
[    2.221971] RBP: 0000000000000000 R08: ff1c723084821850 R09: ff1c723084a94030
[    2.222046] R10: ff1c723084934118 R11: fefefefefefefeff R12: 0000000000000000
[    2.222128] R13: 0000000000000010 R14: ff1c723084934000 R15: ff1c7230831eab00
[    2.222212] FS:  000000001e239400(0000) GS:ff1c723122196000(0000) knlGS:0000000000000000
[    2.222289] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.222358] CR2: 00007f45262c3000 CR3: 0000000001eaf004 CR4: 0000000000771ef0
[    2.222437] PKRU: 55555554
[    2.222485] Call Trace:
[    2.222534]  <TASK>
[    2.222583]  rtmsg_ifinfo+0x3c/0xa0
[    2.222640]  __dev_notify_flags+0xb1/0xf0
[    2.222698]  netif_change_flags+0x54/0x70
[    2.222755]  dev_change_flags+0x45/0x80
[    2.222812]  devinet_ioctl+0x607/0x7f0
[    2.222871]  inet_ioctl+0x229/0x240
[    2.222929]  ? __rtnl_unlock+0x35/0x60
[    2.222985]  sock_do_ioctl+0x75/0x140
[    2.223045]  __x64_sys_ioctl+0xa1/0xe0
[    2.223110]  do_syscall_64+0x104/0xfc0
[    2.223178]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.223248] RIP: 0033:0x47cc8d
[    2.223308] 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
[    2.223439] RSP: 002b:00007ffd49737f10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.223518] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.223597] RDX: 00007ffd49737f80 RSI: 0000000000008914 RDI: 0000000000000006
[    2.223673] RBP: 00007ffd49737f60 R08: 0000000000000004 R09: 00007ffd49737f80
[    2.223749] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd49738448
[    2.223826] R13: 00007ffd497384c8 R14: 0000000000000002 R15: 0000000000543540
[    2.223903]  </TASK>
[    2.223952] ---[ end trace 0000000000000000 ]---
[   47.189825] ------------[ cut here ]------------
[   47.189971] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/158
[   47.190059] Modules linked in:
[   47.190282] CPU: 2 UID: 0 PID: 158 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.190387] Tainted: [W]=WARN
[   47.190449] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.190525] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   47.190598] 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
[   47.190730] RSP: 0018:ff6b73adc03efb58 EFLAGS: 00010286
[   47.190801] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[   47.190885] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1c7230830b8000
[   47.190968] RBP: 0000000000000000 R08: ff1c723084821850 R09: ff1c723084a94030
[   47.191046] R10: ff1c723084934118 R11: fefefefefefefeff R12: 0000000000000000
[   47.191130] R13: 0000000000000010 R14: ff1c723084934000 R15: ff1c7230830b8000
[   47.191218] FS:  0000000000000000(0000) GS:ff1c723122196000(0000) knlGS:0000000000000000
[   47.191310] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.191385] CR2: 00007f45262c3000 CR3: 000000002f642005 CR4: 0000000000771ef0
[   47.191466] PKRU: 55555554
[   47.191516] Call Trace:
[   47.191571]  <TASK>
[   47.191625]  rtmsg_ifinfo+0x3c/0xa0
[   47.191691]  netif_close_many+0xed/0x190
[   47.191758]  unregister_netdevice_many_notify+0x267/0x9d0
[   47.191829]  ? __queue_work+0x141/0x550
[   47.191894]  unregister_netdevice_queue+0x9e/0xd0
[   47.191966]  __tun_detach+0x591/0x5b0
[   47.192034]  tun_chr_close+0x3f/0xc0
[   47.192104]  __fput+0xe8/0x2c0
[   47.192171]  task_work_run+0x63/0xa0
[   47.192236]  do_exit+0x2c1/0xba0
[   47.192308]  ? sk_prot_alloc.isra.0+0x73/0x100
[   47.192378]  do_group_exit+0x2d/0xc0
[   47.192446]  ? sk_prot_alloc.isra.0+0x87/0x100
[   47.192512]  ? cgroup_sk_alloc+0x5c/0x140
[   47.192572]  get_signal+0x82e/0x900
[   47.192640]  ? __d_alloc+0x40/0x200
[   47.192703]  ? alloc_empty_file+0x3f/0xd0
[   47.192766]  arch_do_signal_or_restart+0x77/0x2b0
[   47.192839]  ? alloc_file_pseudo+0xc1/0x110
[   47.192905]  ? __sys_socket+0xda/0x130
[   47.192968]  exit_to_user_mode_loop+0x75/0x4a0
[   47.193041]  do_syscall_64+0x439/0xfc0
[   47.193115]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   47.193188] RIP: 0033:0x47ea2b
[   47.193249] Code: Unable to access opcode bytes at 0x47ea01.
[   47.193327] RSP: 002b:00007ffd49737998 EFLAGS: 00000206 ORIG_RAX: 0000000000000029
[   47.193408] RAX: 0000000000000007 RBX: 00007ffd49737a70 RCX: 000000000047ea2b
[   47.193490] RDX: 0000000000000000 RSI: 0000000000080003 RDI: 0000000000000010
[   47.193572] RBP: 00007ffd497379d0 R08: 0000000000000041 R09: 000000001e23a3e0
[   47.193652] R10: 0000000000000040 R11: 0000000000000206 R12: 00007ffd49738448
[   47.193731] R13: 00007ffd497384c8 R14: 00007ffd49737f48 R15: 0000000000543540
[   47.193833]  </TASK>
[   47.193885] ---[ end trace 0000000000000000 ]---
[   47.194045] ------------[ cut here ]------------
[   47.194089] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/158
[   47.194149] Modules linked in:
[   47.194172] CPU: 3 UID: 0 PID: 158 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.194228] Tainted: [W]=WARN
[   47.194250] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.194286] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   47.194322] 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
[   47.194415] RSP: 0018:ff6b73adc03efbc8 EFLAGS: 00010286
[   47.194446] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.194493] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1c723081d72500
[   47.194531] RBP: 0000000000000000 R08: ff1c723084821850 R09: ff1c723082e68030
[   47.194570] R10: ff1c723084934118 R11: fefefefefefefeff R12: 0000000000000000
[   47.194613] R13: 0000000000000011 R14: ff1c723084934000 R15: ff1c723081d72500
[   47.194655] FS:  0000000000000000(0000) GS:ff1c723122216000(0000) knlGS:0000000000000000
[   47.194706] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.194737] CR2: 00007fa7004a4620 CR3: 00000000049b1001 CR4: 0000000000771ef0
[   47.194775] PKRU: 55555554
[   47.194794] Call Trace:
[   47.194808]  <TASK>
[   47.194821]  unregister_netdevice_many_notify+0x877/0x9d0
[   47.194851]  unregister_netdevice_queue+0x9e/0xd0
[   47.194881]  __tun_detach+0x591/0x5b0
[   47.194904]  tun_chr_close+0x3f/0xc0
[   47.194926]  __fput+0xe8/0x2c0
[   47.194949]  task_work_run+0x63/0xa0
[   47.194977]  do_exit+0x2c1/0xba0
[   47.194999]  ? sk_prot_alloc.isra.0+0x73/0x100
[   47.195028]  do_group_exit+0x2d/0xc0
[   47.195047]  ? sk_prot_alloc.isra.0+0x87/0x100
[   47.195074]  ? cgroup_sk_alloc+0x5c/0x140
[   47.195103]  get_signal+0x82e/0x900
[   47.195125]  ? __d_alloc+0x40/0x200
[   47.195145]  ? alloc_empty_file+0x3f/0xd0
[   47.195167]  arch_do_signal_or_restart+0x77/0x2b0
[   47.195192]  ? alloc_file_pseudo+0xc1/0x110
[   47.195214]  ? __sys_socket+0xda/0x130
[   47.195235]  exit_to_user_mode_loop+0x75/0x4a0
[   47.195264]  do_syscall_64+0x439/0xfc0
[   47.195285]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   47.195320] RIP: 0033:0x47ea2b
[   47.195341] Code: Unable to access opcode bytes at 0x47ea01.
[   47.195377] RSP: 002b:00007ffd49737998 EFLAGS: 00000206 ORIG_RAX: 0000000000000029
[   47.195417] RAX: 0000000000000007 RBX: 00007ffd49737a70 RCX: 000000000047ea2b
[   47.195458] RDX: 0000000000000000 RSI: 0000000000080003 RDI: 0000000000000010
[   47.195502] RBP: 00007ffd497379d0 R08: 0000000000000041 R09: 000000001e23a3e0
[   47.195540] R10: 0000000000000040 R11: 0000000000000206 R12: 00007ffd49738448
[   47.195580] R13: 00007ffd497384c8 R14: 00007ffd49737f48 R15: 0000000000543540
[   47.195621]  </TASK>
[   47.195636] ---[ end trace 0000000000000000 ]---
[   47.200213] ------------[ cut here ]------------
[   47.200254] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: kworker/u16:1/62
[   47.200314] Modules linked in:
[   47.200334] CPU: 3 UID: 0 PID: 62 Comm: kworker/u16:1 Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.200390] Tainted: [W]=WARN
[   47.200413] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.200448] Workqueue: netns cleanup_net
[   47.200473] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   47.200502] 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
[   47.200595] RSP: 0018:ff6b73adc0227c78 EFLAGS: 00010286
[   47.200623] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.200664] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1c723081d72500
[   47.200710] RBP: 0000000000000000 R08: ff1c72308315dd90 R09: ff1c723084a8d82c
[   47.200748] R10: ff1c72308311d118 R11: fefefefefefefeff R12: 0000000000000000
[   47.200789] R13: 0000000000000011 R14: ff1c72308311d000 R15: ff1c723081d72500
[   47.200830] FS:  0000000000000000(0000) GS:ff1c723122216000(0000) knlGS:0000000000000000
[   47.200871] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.200904] CR2: 00005636a16b02b8 CR3: 0000000002f63003 CR4: 0000000000771ef0
[   47.200942] PKRU: 55555554
[   47.200963] Call Trace:
[   47.200976]  <TASK>
[   47.200992]  unregister_netdevice_many_notify+0x877/0x9d0
[   47.201021]  default_device_exit_batch+0x318/0x390
[   47.201050]  ops_undo_list+0x10b/0x240
[   47.201074]  cleanup_net+0x1d7/0x2e0
[   47.201104]  process_one_work+0x162/0x360
[   47.201128]  worker_thread+0x16e/0x2d0
[   47.201150]  ? rescuer_thread+0x510/0x510
[   47.201174]  kthread+0xe1/0x120
[   47.201201]  ? kthread_park+0xa0/0xa0
[   47.201223]  ret_from_fork+0x16d/0x250
[   47.201247]  ? kthread_park+0xa0/0xa0
[   47.201269]  ret_from_fork_asm+0x11/0x20
[   47.201297]  </TASK>
[   47.201313] ---[ end trace 0000000000000000 ]---