[ 6.655643] ------------[ cut here ]------------
[ 6.655691] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: ip/518
[ 6.655750] Modules linked in: netconsole netdevsim
[ 6.655785] CPU: 0 UID: 0 PID: 518 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 6.655843] Tainted: [W]=WARN
[ 6.655865] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6.655917] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 6.655958] 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
[ 6.656061] RSP: 0018:ff56fe98c0663cc8 EFLAGS: 00010286
[ 6.656093] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 6.656138] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76018b5200
[ 6.656184] RBP: 0000000000000000 R08: ff355f76018ba2d0 R09: ff355f76032ab02c
[ 6.656237] R10: ff355f7606048118 R11: fefefefefefefeff R12: 0000000000000000
[ 6.656280] R13: 0000000000000010 R14: ff355f7606048000 R15: ff355f76018b5200
[ 6.656333] FS: 00007f706f5eb840(0000) GS:ff355f76b4855000(0000) knlGS:0000000000000000
[ 6.656375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6.656411] CR2: 00007f706f7ecc20 CR3: 0000000009702002 CR4: 0000000000771ef0
[ 6.656459] PKRU: 55555554
[ 6.656473] Call Trace:
[ 6.656488]
[ 6.656504] rtmsg_ifinfo+0x3c/0xa0
[ 6.656525] register_netdevice+0x8e1/0xa70
[ 6.656551] register_netdev+0x1e/0x30
[ 6.656576] loopback_net_init+0x57/0xb0
[ 6.656600] ? vsock_sysctl_init_net+0xb6/0x140
[ 6.656633] ops_init+0x68/0x140
[ 6.656656] setup_net+0x85/0x150
[ 6.656679] copy_net_ns+0xf5/0x200
[ 6.656700] create_new_namespaces+0x117/0x2f0
[ 6.656732] unshare_nsproxy_namespaces+0x85/0xb0
[ 6.656767] ksys_unshare+0x346/0x5e0
[ 6.656791] __x64_sys_unshare+0x12/0x20
[ 6.656813] do_syscall_64+0x104/0xfc0
[ 6.656838] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 6.656864] RIP: 0033:0x7f706f8adbcb
[ 6.656887] 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
[ 6.656987] RSP: 002b:00007ffd8e802638 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[ 6.657028] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f706f8adbcb
[ 6.657071] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 6.657114] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[ 6.657155] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd8e804860
[ 6.657203] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd8e80589d
[ 6.657244]
[ 6.657257] ---[ end trace 0000000000000000 ]---
[ 6.657792] ------------[ cut here ]------------
[ 6.657860] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: python3/517
[ 6.657955] Modules linked in: netconsole netdevsim
[ 6.658020] CPU: 2 UID: 0 PID: 517 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 6.658112] Tainted: [W]=WARN
[ 6.658167] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6.658242] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 6.658308] 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
[ 6.658440] RSP: 0018:ff56fe98c04a79d0 EFLAGS: 00010286
[ 6.658504] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 6.658582] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76018f3f00
[ 6.658661] RBP: 0000000000000000 R08: ff355f760191a510 R09: ff355f7604b32030
[ 6.658736] R10: ff355f760c13a118 R11: fefefefefefefeff R12: 0000000000000000
[ 6.658812] R13: 0000000000000010 R14: ff355f760c13a000 R15: ff355f76018f3f00
[ 6.658893] FS: 00007ffa74a78400(0000) GS:ff355f76b4955000(0000) knlGS:0000000000000000
[ 6.658978] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6.659051] CR2: 000055c5ce64f628 CR3: 0000000009725004 CR4: 0000000000771ef0
[ 6.659129] PKRU: 55555554
[ 6.659177] Call Trace:
[ 6.659232]
[ 6.659281] rtmsg_ifinfo+0x3c/0xa0
[ 6.659338] register_netdevice+0x8e1/0xa70
[ 6.659397] nsim_create+0x319/0x410 [netdevsim]
[ 6.659464] __nsim_dev_port_add+0x1cc/0x420 [netdevsim]
[ 6.659531] nsim_drv_probe+0x655/0x750 [netdevsim]
[ 6.659603] really_probe+0xc9/0x290
[ 6.659663] ? driver_probe_device+0xe0/0xe0
[ 6.659726] __driver_probe_device+0x8d/0x160
[ 6.659790] driver_probe_device+0x1f/0xe0
[ 6.659848] __device_attach_driver+0x71/0x100
[ 6.659912] bus_for_each_drv+0x9d/0x100
[ 6.659975] __device_attach+0xb0/0x1b0
[ 6.660032] device_initial_probe+0x4a/0x70
[ 6.660090] bus_probe_device+0x3c/0xb0
[ 6.660147] device_add+0x675/0x8a0
[ 6.660210] new_device_store+0x19b/0x2b0 [netdevsim]
[ 6.660276] kernfs_fop_write_iter+0x151/0x200
[ 6.660342] vfs_write+0x257/0x5c0
[ 6.660401] ksys_write+0x7b/0x110
[ 6.660458] do_syscall_64+0x104/0xfc0
[ 6.660516] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 6.660579] RIP: 0033:0x7ffa74c0008e
[ 6.660636] 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
[ 6.660769] RSP: 002b:00007fffd5851bb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6.660846] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007ffa74c0008e
[ 6.660930] RDX: 0000000000000009 RSI: 000055c5ce606dc0 RDI: 0000000000000006
[ 6.661008] RBP: 00007fffd5851bc0 R08: 0000000000000000 R09: 0000000000000000
[ 6.661084] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffa74a78390
[ 6.661161] R13: 000055c5ce606dc0 R14: 0000000000000006 R15: 00007ffa74a050d0
[ 6.661243]
[ 6.661291] ---[ end trace 0000000000000000 ]---
[ 6.826046] ------------[ cut here ]------------
[ 6.826155] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: kworker/u16:1/65
[ 6.826260] Modules linked in: netconsole netdevsim
[ 6.826328] CPU: 2 UID: 0 PID: 65 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 6.826420] Tainted: [W]=WARN
[ 6.826476] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6.826549] Workqueue: netns cleanup_net
[ 6.826607] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 6.826672] 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
[ 6.826812] RSP: 0018:ff56fe98c023fc78 EFLAGS: 00010286
[ 6.826878] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 6.826962] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76018f3f00
[ 6.827039] RBP: 0000000000000000 R08: ff355f76018ba2d0 R09: ff355f7604b2f82c
[ 6.827117] R10: ff355f7606048118 R11: fefefefefefefeff R12: 0000000000000000
[ 6.827194] R13: 0000000000000011 R14: ff355f7606048000 R15: ff355f76018f3f00
[ 6.827286] FS: 0000000000000000(0000) GS:ff355f76b4955000(0000) knlGS:0000000000000000
[ 6.827365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6.827437] CR2: 000055c5ce6c66b8 CR3: 0000000009725004 CR4: 0000000000771ef0
[ 6.827517] PKRU: 55555554
[ 6.827566] Call Trace:
[ 6.827617]
[ 6.827667] unregister_netdevice_many_notify+0x595/0xa40
[ 6.827733] default_device_exit_batch+0x328/0x3a0
[ 6.827799] ops_undo_list+0x10b/0x240
[ 6.827858] cleanup_net+0x1d7/0x2e0
[ 6.827916] process_one_work+0x162/0x360
[ 6.827985] worker_thread+0x16e/0x2d0
[ 6.828043] ? rescuer_thread+0x510/0x510
[ 6.828107] kthread+0xe1/0x120
[ 6.828165] ? kthread_park+0xa0/0xa0
[ 6.828230] ret_from_fork+0x16d/0x250
[ 6.828289] ? kthread_park+0xa0/0xa0
[ 6.828349] ret_from_fork_asm+0x11/0x20
[ 6.828409]
[ 6.828457] ---[ end trace 0000000000000000 ]---