[ 13.582183] ------------[ cut here ]------------
[ 13.582230] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: ip/1090
[ 13.582294] Modules linked in: netconsole netdevsim
[ 13.582329] CPU: 3 UID: 0 PID: 1090 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 13.582397] Tainted: [W]=WARN
[ 13.582420] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 13.582459] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 13.582489] 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
[ 13.582581] RSP: 0018:ff56fe98c0cc3cc8 EFLAGS: 00010286
[ 13.582611] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 13.582653] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76018f3c00
[ 13.582695] RBP: 0000000000000000 R08: ff355f7604895cd0 R09: ff355f760619d02c
[ 13.582734] R10: ff355f7606198118 R11: fefefefefefefeff R12: 0000000000000000
[ 13.582780] R13: 0000000000000010 R14: ff355f7606198000 R15: ff355f76018f3c00
[ 13.582826] FS: 00007feffd654840(0000) GS:ff355f76b49d5000(0000) knlGS:0000000000000000
[ 13.582870] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 13.582906] CR2: 00007feffd860690 CR3: 0000000006362006 CR4: 0000000000771ef0
[ 13.582950] PKRU: 55555554
[ 13.582965] Call Trace:
[ 13.582985]
[ 13.583001] rtmsg_ifinfo+0x3c/0xa0
[ 13.583024] register_netdevice+0x8e1/0xa70
[ 13.583050] register_netdev+0x1e/0x30
[ 13.583073] loopback_net_init+0x57/0xb0
[ 13.583100] ? vsock_sysctl_init_net+0xb6/0x140
[ 13.583131] ops_init+0x68/0x140
[ 13.583153] setup_net+0x85/0x150
[ 13.583174] copy_net_ns+0xf5/0x200
[ 13.583200] create_new_namespaces+0x117/0x2f0
[ 13.583231] unshare_nsproxy_namespaces+0x85/0xb0
[ 13.583265] ksys_unshare+0x346/0x5e0
[ 13.583290] __x64_sys_unshare+0x12/0x20
[ 13.583313] do_syscall_64+0x104/0xfc0
[ 13.583337] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 13.583367] RIP: 0033:0x7feffd916bcb
[ 13.583391] 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
[ 13.583484] RSP: 002b:00007ffeccbad558 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[ 13.583526] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007feffd916bcb
[ 13.583568] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 13.583608] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[ 13.583646] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffeccbaf780
[ 13.583686] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffeccbb08a3
[ 13.583726]
[ 13.583743] ---[ end trace 0000000000000000 ]---
[ 13.584257] ------------[ cut here ]------------
[ 13.584300] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/1089
[ 13.584351] Modules linked in: netconsole netdevsim
[ 13.584382] CPU: 0 UID: 0 PID: 1089 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 13.584440] Tainted: [W]=WARN
[ 13.584462] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 13.584499] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 13.584529] 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
[ 13.584618] RSP: 0018:ff56fe98c0bb39d0 EFLAGS: 00010286
[ 13.584645] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 13.584687] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76032d9c00
[ 13.584730] RBP: 0000000000000000 R08: ff355f76032ef610 R09: ff355f760c06b030
[ 13.584772] R10: ff355f7604af0118 R11: fefefefefefefeff R12: 0000000000000000
[ 13.584815] R13: 0000000000000010 R14: ff355f7604af0000 R15: ff355f76032d9c00
[ 13.584859] FS: 00007ff836272400(0000) GS:ff355f76b4855000(0000) knlGS:0000000000000000
[ 13.584904] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 13.584946] CR2: 000055e17d49dcf8 CR3: 000000000886f003 CR4: 0000000000771ef0
[ 13.584988] PKRU: 55555554
[ 13.585005] Call Trace:
[ 13.585021]
[ 13.585036] rtmsg_ifinfo+0x3c/0xa0
[ 13.585059] register_netdevice+0x8e1/0xa70
[ 13.585081] nsim_create+0x319/0x410 [netdevsim]
[ 13.585112] __nsim_dev_port_add+0x1cc/0x420 [netdevsim]
[ 13.585148] nsim_drv_probe+0x655/0x750 [netdevsim]
[ 13.585177] really_probe+0xc9/0x290
[ 13.585202] ? driver_probe_device+0xe0/0xe0
[ 13.585231] __driver_probe_device+0x8d/0x160
[ 13.585263] driver_probe_device+0x1f/0xe0
[ 13.585286] __device_attach_driver+0x71/0x100
[ 13.585315] bus_for_each_drv+0x9d/0x100
[ 13.585338] __device_attach+0xb0/0x1b0
[ 13.585362] device_initial_probe+0x4a/0x70
[ 13.585386] bus_probe_device+0x3c/0xb0
[ 13.585408] device_add+0x675/0x8a0
[ 13.585431] new_device_store+0x19b/0x2b0 [netdevsim]
[ 13.585459] kernfs_fop_write_iter+0x151/0x200
[ 13.585488] vfs_write+0x257/0x5c0
[ 13.585513] ksys_write+0x7b/0x110
[ 13.585535] do_syscall_64+0x104/0xfc0
[ 13.585558] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 13.585587] RIP: 0033:0x7ff8363fa08e
[ 13.585610] 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
[ 13.585709] RSP: 002b:00007ffd783b4530 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 13.585749] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007ff8363fa08e
[ 13.585791] RDX: 0000000000000009 RSI: 000055e17d455490 RDI: 0000000000000006
[ 13.585831] RBP: 00007ffd783b4540 R08: 0000000000000000 R09: 0000000000000000
[ 13.585870] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ff836272390
[ 13.585911] R13: 000055e17d455490 R14: 0000000000000006 R15: 00007ff8362010d0
[ 13.585955]
[ 13.585970] ---[ end trace 0000000000000000 ]---
[ 13.744604] ------------[ cut here ]------------
[ 13.744708] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: kworker/u16:1/65
[ 13.744808] Modules linked in: netconsole netdevsim
[ 13.744870] CPU: 2 UID: 0 PID: 65 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 13.744966] Tainted: [W]=WARN
[ 13.745019] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 13.745087] Workqueue: netns cleanup_net
[ 13.745144] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 13.745206] 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
[ 13.745341] RSP: 0018:ff56fe98c023fc78 EFLAGS: 00010286
[ 13.745404] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 13.745478] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76032ca700
[ 13.745552] RBP: 0000000000000000 R08: ff355f7604895cd0 R09: ff355f76061a282c
[ 13.745627] R10: ff355f7606198118 R11: fefefefefefefeff R12: 0000000000000000
[ 13.745701] R13: 0000000000000011 R14: ff355f7606198000 R15: ff355f76032ca700
[ 13.745779] FS: 0000000000000000(0000) GS:ff355f76b4955000(0000) knlGS:0000000000000000
[ 13.745855] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 13.745928] CR2: 00007f9a8e7498f4 CR3: 00000000089db002 CR4: 0000000000771ef0
[ 13.746004] PKRU: 55555554
[ 13.746051] Call Trace:
[ 13.746098]
[ 13.746146] unregister_netdevice_many_notify+0x595/0xa40
[ 13.746209] default_device_exit_batch+0x328/0x3a0
[ 13.746279] ops_undo_list+0x10b/0x240
[ 13.746336] cleanup_net+0x1d7/0x2e0
[ 13.746391] process_one_work+0x162/0x360
[ 13.746449] worker_thread+0x16e/0x2d0
[ 13.746505] ? rescuer_thread+0x510/0x510
[ 13.746560] kthread+0xe1/0x120
[ 13.746616] ? kthread_park+0xa0/0xa0
[ 13.746677] ret_from_fork+0x16d/0x250
[ 13.746734] ? kthread_park+0xa0/0xa0
[ 13.746789] ret_from_fork_asm+0x11/0x20
[ 13.746846]
[ 13.746893] ---[ end trace 0000000000000000 ]---