[ 8.735299] ------------[ cut here ]------------
[ 8.735348] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: ip/692
[ 8.735409] Modules linked in: netconsole netdevsim
[ 8.735444] CPU: 0 UID: 0 PID: 692 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 8.735499] Tainted: [W]=WARN
[ 8.735522] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8.735556] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 8.735581] 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
[ 8.735675] RSP: 0018:ff56fe98c04f7cc8 EFLAGS: 00010286
[ 8.735705] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 8.735748] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76018f3800
[ 8.735787] RBP: 0000000000000000 R08: ff355f76030285d0 R09: ff355f76060bb02c
[ 8.735826] R10: ff355f7602eae118 R11: fefefefefefefeff R12: 0000000000000000
[ 8.735869] R13: 0000000000000010 R14: ff355f7602eae000 R15: ff355f76018f3800
[ 8.735917] FS: 00007f7ad3f6e840(0000) GS:ff355f76b4855000(0000) knlGS:0000000000000000
[ 8.735966] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.736004] CR2: 00007f7ad416fc20 CR3: 00000000060e1003 CR4: 0000000000771ef0
[ 8.736045] PKRU: 55555554
[ 8.736058] Call Trace:
[ 8.736074]
[ 8.736091] rtmsg_ifinfo+0x3c/0xa0
[ 8.736114] register_netdevice+0x8e1/0xa70
[ 8.736138] register_netdev+0x1e/0x30
[ 8.736160] loopback_net_init+0x57/0xb0
[ 8.736180] ? vsock_sysctl_init_net+0xb6/0x140
[ 8.736208] ops_init+0x68/0x140
[ 8.736232] setup_net+0x85/0x150
[ 8.736254] copy_net_ns+0xf5/0x200
[ 8.736275] create_new_namespaces+0x117/0x2f0
[ 8.736304] unshare_nsproxy_namespaces+0x85/0xb0
[ 8.736333] ksys_unshare+0x346/0x5e0
[ 8.736357] __x64_sys_unshare+0x12/0x20
[ 8.736378] do_syscall_64+0x104/0xfc0
[ 8.736400] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 8.736427] RIP: 0033:0x7f7ad4230bcb
[ 8.736448] 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
[ 8.736540] RSP: 002b:00007ffd2830c7b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[ 8.736581] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f7ad4230bcb
[ 8.736622] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 8.736671] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[ 8.736715] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd2830e9e0
[ 8.736759] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd283108a3
[ 8.736798]
[ 8.736812] ---[ end trace 0000000000000000 ]---
[ 8.737276] ------------[ cut here ]------------
[ 8.737309] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: python3/691
[ 8.737372] Modules linked in: netconsole netdevsim
[ 8.737402] CPU: 3 UID: 0 PID: 691 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 8.737460] Tainted: [W]=WARN
[ 8.737478] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8.737510] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 8.737541] 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
[ 8.737637] RSP: 0018:ff56fe98c07c39d0 EFLAGS: 00010286
[ 8.737663] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 8.737704] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76018e4100
[ 8.737743] RBP: 0000000000000000 R08: ff355f760191a550 R09: ff355f760c140030
[ 8.737783] R10: ff355f7606046118 R11: fefefefefefefeff R12: 0000000000000000
[ 8.737822] R13: 0000000000000010 R14: ff355f7606046000 R15: ff355f76018e4100
[ 8.737874] FS: 00007f6acf2c5400(0000) GS:ff355f76b49d5000(0000) knlGS:0000000000000000
[ 8.737917] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.737961] CR2: 00005610667f4ed8 CR3: 0000000006019001 CR4: 0000000000771ef0
[ 8.738003] PKRU: 55555554
[ 8.738020] Call Trace:
[ 8.738035]
[ 8.738050] rtmsg_ifinfo+0x3c/0xa0
[ 8.738073] register_netdevice+0x8e1/0xa70
[ 8.738093] nsim_create+0x319/0x410 [netdevsim]
[ 8.738126] __nsim_dev_port_add+0x1cc/0x420 [netdevsim]
[ 8.738161] nsim_drv_probe+0x655/0x750 [netdevsim]
[ 8.738190] really_probe+0xc9/0x290
[ 8.738218] ? driver_probe_device+0xe0/0xe0
[ 8.738245] __driver_probe_device+0x8d/0x160
[ 8.738273] driver_probe_device+0x1f/0xe0
[ 8.738295] __device_attach_driver+0x71/0x100
[ 8.738323] bus_for_each_drv+0x9d/0x100
[ 8.738346] __device_attach+0xb0/0x1b0
[ 8.738368] device_initial_probe+0x4a/0x70
[ 8.738389] bus_probe_device+0x3c/0xb0
[ 8.738410] device_add+0x675/0x8a0
[ 8.738433] new_device_store+0x19b/0x2b0 [netdevsim]
[ 8.738472] kernfs_fop_write_iter+0x151/0x200
[ 8.738496] vfs_write+0x257/0x5c0
[ 8.738521] ksys_write+0x7b/0x110
[ 8.738543] do_syscall_64+0x104/0xfc0
[ 8.738562] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 8.738589] RIP: 0033:0x7f6acf44d08e
[ 8.738611] 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
[ 8.738703] RSP: 002b:00007fffa6ca7f10 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8.738742] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f6acf44d08e
[ 8.738784] RDX: 0000000000000009 RSI: 00005610667ac670 RDI: 0000000000000006
[ 8.738827] RBP: 00007fffa6ca7f20 R08: 0000000000000000 R09: 0000000000000000
[ 8.738868] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f6acf2c5390
[ 8.738914] R13: 00005610667ac670 R14: 0000000000000006 R15: 00007f6acf2510d0
[ 8.738959]
[ 8.738973] ---[ end trace 0000000000000000 ]---
[ 8.782975] ------------[ cut here ]------------
[ 8.783048] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: kworker/u16:1/65
[ 8.783160] Modules linked in: netconsole netdevsim
[ 8.783247] CPU: 2 UID: 0 PID: 65 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 8.783345] Tainted: [W]=WARN
[ 8.783411] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8.783477] Workqueue: netns cleanup_net
[ 8.783532] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 8.783610] 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
[ 8.783773] RSP: 0018:ff56fe98c023fc78 EFLAGS: 00010286
[ 8.783840] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 8.783948] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f7601890b00
[ 8.784048] RBP: 0000000000000000 R08: ff355f76030285d0 R09: ff355f7604afe82c
[ 8.784129] R10: ff355f7602eae118 R11: fefefefefefefeff R12: 0000000000000000
[ 8.784196] R13: 0000000000000011 R14: ff355f7602eae000 R15: ff355f7601890b00
[ 8.784290] FS: 0000000000000000(0000) GS:ff355f76b4955000(0000) knlGS:0000000000000000
[ 8.784376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.784462] CR2: 00007f19be8d92a0 CR3: 0000000024642001 CR4: 0000000000771ef0
[ 8.784542] PKRU: 55555554
[ 8.784588] Call Trace:
[ 8.784640]
[ 8.784706] unregister_netdevice_many_notify+0x595/0xa40
[ 8.784790] default_device_exit_batch+0x328/0x3a0
[ 8.784856] ops_undo_list+0x10b/0x240
[ 8.784917] cleanup_net+0x1d7/0x2e0
[ 8.784979] process_one_work+0x162/0x360
[ 8.785057] worker_thread+0x16e/0x2d0
[ 8.785122] ? rescuer_thread+0x510/0x510
[ 8.785202] kthread+0xe1/0x120
[ 8.785273] ? kthread_park+0xa0/0xa0
[ 8.785340] ret_from_fork+0x16d/0x250
[ 8.785401] ? kthread_park+0xa0/0xa0
[ 8.785481] ret_from_fork_asm+0x11/0x20
[ 8.785551]
[ 8.785604] ---[ end trace 0000000000000000 ]---