[ 14.963638] ------------[ cut here ]------------
[ 14.963689] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: ip/1208
[ 14.963753] Modules linked in: netconsole netdevsim
[ 14.963787] CPU: 0 UID: 0 PID: 1208 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 14.963848] Tainted: [W]=WARN
[ 14.963873] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 14.963908] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 14.963942] Code: 80 00 00 00 e8 09 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 a5 fb ff b9 a6 ff ff
[ 14.964044] RSP: 0018:ff56fe98c0e63cc8 EFLAGS: 00010286
[ 14.964077] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 14.964117] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76018b5c00
[ 14.964158] RBP: 0000000000000000 R08: ff355f760496e390 R09: ff355f7602acd02c
[ 14.964202] R10: ff355f760619e118 R11: fefefefefefefeff R12: 0000000000000000
[ 14.964243] R13: 0000000000000010 R14: ff355f760619e000 R15: ff355f76018b5c00
[ 14.964296] FS: 00007fc01aca7840(0000) GS:ff355f76b4855000(0000) knlGS:0000000000000000
[ 14.964339] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 14.964375] CR2: 00007fc01aeb17d0 CR3: 00000000063c4002 CR4: 0000000000771ef0
[ 14.964418] PKRU: 55555554
[ 14.964433] Call Trace:
[ 14.964448]
[ 14.964465] rtmsg_ifinfo+0x3c/0xa0
[ 14.964489] register_netdevice+0x8e1/0xa70
[ 14.964516] register_netdev+0x1e/0x30
[ 14.964543] loopback_net_init+0x57/0xb0
[ 14.964570] ? vsock_sysctl_init_net+0xb6/0x140
[ 14.964603] ops_init+0x68/0x140
[ 14.964626] setup_net+0x85/0x150
[ 14.964649] copy_net_ns+0xf5/0x200
[ 14.964670] create_new_namespaces+0x117/0x2f0
[ 14.964701] unshare_nsproxy_namespaces+0x85/0xb0
[ 14.964732] ksys_unshare+0x346/0x5e0
[ 14.964757] __x64_sys_unshare+0x12/0x20
[ 14.964777] do_syscall_64+0x104/0xfc0
[ 14.964801] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 14.964833] RIP: 0033:0x7fc01af69bcb
[ 14.964862] 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
[ 14.964958] RSP: 002b:00007fff58940948 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[ 14.965001] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fc01af69bcb
[ 14.965042] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 14.965080] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[ 14.965123] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff58942b70
[ 14.965170] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff58943897
[ 14.965217]
[ 14.965232] ---[ end trace 0000000000000000 ]---
[ 14.965737] ------------[ cut here ]------------
[ 14.965773] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/1207
[ 14.965829] Modules linked in: netconsole netdevsim
[ 14.965862] CPU: 3 UID: 0 PID: 1207 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 14.965933] Tainted: [W]=WARN
[ 14.965955] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 14.965987] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 14.966017] Code: 80 00 00 00 e8 09 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 a5 fb ff b9 a6 ff ff
[ 14.966118] RSP: 0018:ff56fe98c0e0b9d0 EFLAGS: 00010286
[ 14.966152] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 14.966198] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76032cd800
[ 14.966251] RBP: 0000000000000000 R08: ff355f76018bed10 R09: ff355f760c06e030
[ 14.966298] R10: ff355f76061ac118 R11: fefefefefefefeff R12: 0000000000000000
[ 14.966347] R13: 0000000000000010 R14: ff355f76061ac000 R15: ff355f76032cd800
[ 14.966391] FS: 00007f44af94d400(0000) GS:ff355f76b49d5000(0000) knlGS:0000000000000000
[ 14.966443] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 14.966481] CR2: 00005637d60614d8 CR3: 000000000967a001 CR4: 0000000000771ef0
[ 14.966525] PKRU: 55555554
[ 14.966542] Call Trace:
[ 14.966562]
[ 14.966579] rtmsg_ifinfo+0x3c/0xa0
[ 14.966604] register_netdevice+0x8e1/0xa70
[ 14.966629] nsim_create+0x319/0x410 [netdevsim]
[ 14.966660] __nsim_dev_port_add+0x1cc/0x420 [netdevsim]
[ 14.966690] nsim_drv_probe+0x655/0x750 [netdevsim]
[ 14.966723] really_probe+0xc9/0x290
[ 14.966750] ? driver_probe_device+0xe0/0xe0
[ 14.966785] __driver_probe_device+0x8d/0x160
[ 14.966816] driver_probe_device+0x1f/0xe0
[ 14.966840] __device_attach_driver+0x71/0x100
[ 14.966871] bus_for_each_drv+0x9d/0x100
[ 14.966894] __device_attach+0xb0/0x1b0
[ 14.966923] device_initial_probe+0x4a/0x70
[ 14.966950] bus_probe_device+0x3c/0xb0
[ 14.966976] device_add+0x675/0x8a0
[ 14.967001] new_device_store+0x19b/0x2b0 [netdevsim]
[ 14.967032] kernfs_fop_write_iter+0x151/0x200
[ 14.967062] vfs_write+0x257/0x5c0
[ 14.967088] ksys_write+0x7b/0x110
[ 14.967113] do_syscall_64+0x104/0xfc0
[ 14.967134] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 14.967165] RIP: 0033:0x7f44afad508e
[ 14.967188] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
[ 14.967297] RSP: 002b:00007fffb80b6cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 14.967339] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f44afad508e
[ 14.967384] RDX: 0000000000000009 RSI: 00005637d6018c70 RDI: 0000000000000006
[ 14.967427] RBP: 00007fffb80b6cc0 R08: 0000000000000000 R09: 0000000000000000
[ 14.967478] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f44af94d390
[ 14.967519] R13: 00005637d6018c70 R14: 0000000000000006 R15: 00007f44af8d90d0
[ 14.967565]
[ 14.967582] ---[ end trace 0000000000000000 ]---
[ 15.012834] ------------[ cut here ]------------
[ 15.012928] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: kworker/u16:1/65
[ 15.013031] Modules linked in: netconsole netdevsim
[ 15.013110] CPU: 2 UID: 0 PID: 65 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 15.013223] Tainted: [W]=WARN
[ 15.013290] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 15.013370] Workqueue: netns cleanup_net
[ 15.013425] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 15.013487] Code: 80 00 00 00 e8 09 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 a5 fb ff b9 a6 ff ff
[ 15.013640] RSP: 0018:ff56fe98c023fc78 EFLAGS: 00010286
[ 15.013702] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 15.013795] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76032cd300
[ 15.013876] RBP: 0000000000000000 R08: ff355f760496e390 R09: ff355f7604b2f82c
[ 15.013968] R10: ff355f760619e118 R11: fefefefefefefeff R12: 0000000000000000
[ 15.014050] R13: 0000000000000011 R14: ff355f760619e000 R15: ff355f76032cd300
[ 15.014140] FS: 0000000000000000(0000) GS:ff355f76b4955000(0000) knlGS:0000000000000000
[ 15.014228] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 15.014309] CR2: 00007f98609d9430 CR3: 0000000006388004 CR4: 0000000000771ef0
[ 15.014393] PKRU: 55555554
[ 15.014441] Call Trace:
[ 15.014494]
[ 15.014545] unregister_netdevice_many_notify+0x595/0xa40
[ 15.014622] default_device_exit_batch+0x328/0x3a0
[ 15.014686] ops_undo_list+0x10b/0x240
[ 15.014761] cleanup_net+0x1d7/0x2e0
[ 15.014838] process_one_work+0x162/0x360
[ 15.014903] worker_thread+0x16e/0x2d0
[ 15.014970] ? rescuer_thread+0x510/0x510
[ 15.015034] kthread+0xe1/0x120
[ 15.015109] ? kthread_park+0xa0/0xa0
[ 15.015191] ret_from_fork+0x16d/0x250
[ 15.015261] ? kthread_park+0xa0/0xa0
[ 15.015337] ret_from_fork_asm+0x11/0x20
[ 15.015392]
[ 15.015445] ---[ end trace 0000000000000000 ]---