[ 3.887893] ------------[ cut here ]------------
[ 3.887989] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/284
[ 3.888079] Modules linked in: netdevsim
[ 3.888137] CPU: 2 UID: 0 PID: 284 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 3.888234] Tainted: [W]=WARN
[ 3.888288] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3.888356] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 3.888419] 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
[ 3.888548] RSP: 0018:ff56fe98c0347cc8 EFLAGS: 00010286
[ 3.888610] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 3.888683] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76032cdc00
[ 3.888759] RBP: 0000000000000000 R08: ff355f76030d7750 R09: ff355f7604b3202c
[ 3.888834] R10: ff355f760604d118 R11: fefefefefefefeff R12: 0000000000000000
[ 3.888908] R13: 0000000000000010 R14: ff355f760604d000 R15: ff355f76032cdc00
[ 3.888997] FS: 00007f0c13173840(0000) GS:ff355f76b4955000(0000) knlGS:0000000000000000
[ 3.889074] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3.889142] CR2: 00007f0c1337a430 CR3: 000000000307b002 CR4: 0000000000771ef0
[ 3.889223] PKRU: 55555554
[ 3.889271] Call Trace:
[ 3.889319]
[ 3.889367] rtmsg_ifinfo+0x3c/0xa0
[ 3.889423] register_netdevice+0x8e1/0xa70
[ 3.889481] register_netdev+0x1e/0x30
[ 3.889537] loopback_net_init+0x57/0xb0
[ 3.889594] ? vsock_sysctl_init_net+0xb6/0x140
[ 3.889657] ops_init+0x68/0x140
[ 3.889714] setup_net+0x85/0x150
[ 3.889769] copy_net_ns+0xf5/0x200
[ 3.889825] create_new_namespaces+0x117/0x2f0
[ 3.889889] unshare_nsproxy_namespaces+0x85/0xb0
[ 3.889959] ksys_unshare+0x346/0x5e0
[ 3.890017] __x64_sys_unshare+0x12/0x20
[ 3.890072] do_syscall_64+0x104/0xfc0
[ 3.890129] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 3.890198] RIP: 0033:0x7f0c13435bcb
[ 3.890253] 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
[ 3.890381] RSP: 002b:00007ffda139e9a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[ 3.890457] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f0c13435bcb
[ 3.890530] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 3.890604] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[ 3.890678] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffda13a0bd0
[ 3.890753] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffda13a28a3
[ 3.890827]
[ 3.890874] ---[ end trace 0000000000000000 ]---
[ 3.891547] ------------[ cut here ]------------
[ 3.891584] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: python3/283
[ 3.891639] Modules linked in: netdevsim
[ 3.891664] CPU: 1 UID: 0 PID: 283 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 3.891724] Tainted: [W]=WARN
[ 3.891744] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3.891780] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 3.891806] 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
[ 3.891903] RSP: 0018:ff56fe98c04af9d0 EFLAGS: 00010286
[ 3.891936] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 3.891978] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f7601906700
[ 3.892021] RBP: 0000000000000000 R08: ff355f7601938450 R09: ff355f7601e54030
[ 3.892063] R10: ff355f760198a118 R11: fefefefefefefeff R12: 0000000000000000
[ 3.892102] R13: 0000000000000010 R14: ff355f760198a000 R15: ff355f7601906700
[ 3.892148] FS: 00007f9e567f4400(0000) GS:ff355f76b48d5000(0000) knlGS:0000000000000000
[ 3.892203] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3.892244] CR2: 000055ad93e79cf8 CR3: 0000000004a22001 CR4: 0000000000771ef0
[ 3.892284] PKRU: 55555554
[ 3.892299] Call Trace:
[ 3.892314]
[ 3.892330] rtmsg_ifinfo+0x3c/0xa0
[ 3.892351] register_netdevice+0x8e1/0xa70
[ 3.892375] nsim_create+0x319/0x410 [netdevsim]
[ 3.892407] __nsim_dev_port_add+0x1cc/0x420 [netdevsim]
[ 3.892436] nsim_drv_probe+0x655/0x750 [netdevsim]
[ 3.892467] really_probe+0xc9/0x290
[ 3.892487] ? driver_probe_device+0xe0/0xe0
[ 3.892515] __driver_probe_device+0x8d/0x160
[ 3.892545] driver_probe_device+0x1f/0xe0
[ 3.892572] __device_attach_driver+0x71/0x100
[ 3.892601] bus_for_each_drv+0x9d/0x100
[ 3.892623] __device_attach+0xb0/0x1b0
[ 3.892647] device_initial_probe+0x4a/0x70
[ 3.892668] bus_probe_device+0x3c/0xb0
[ 3.892689] device_add+0x675/0x8a0
[ 3.892713] new_device_store+0x19b/0x2b0 [netdevsim]
[ 3.892741] kernfs_fop_write_iter+0x151/0x200
[ 3.892770] vfs_write+0x257/0x5c0
[ 3.892794] ksys_write+0x7b/0x110
[ 3.892815] do_syscall_64+0x104/0xfc0
[ 3.892839] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 3.892865] RIP: 0033:0x7f9e5697c08e
[ 3.892888] 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
[ 3.892983] RSP: 002b:00007ffc96163e30 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3.893025] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f9e5697c08e
[ 3.893065] RDX: 0000000000000009 RSI: 000055ad93e31490 RDI: 0000000000000006
[ 3.893107] RBP: 00007ffc96163e40 R08: 0000000000000000 R09: 0000000000000000
[ 3.893149] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f9e567f4390
[ 3.893194] R13: 000055ad93e31490 R14: 0000000000000006 R15: 00007f9e567810d0
[ 3.893238]
[ 3.893252] ---[ end trace 0000000000000000 ]---
[ 4.009255] ------------[ cut here ]------------
[ 4.009337] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: kworker/u16:1/65
[ 4.009467] Modules linked in: netdevsim
[ 4.009534] CPU: 2 UID: 0 PID: 65 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 4.009644] Tainted: [W]=WARN
[ 4.009715] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4.009793] Workqueue: netns cleanup_net
[ 4.009857] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 4.009942] 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
[ 4.010108] RSP: 0018:ff56fe98c023fc78 EFLAGS: 00010286
[ 4.010191] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 4.010289] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76032cdc00
[ 4.010372] RBP: 0000000000000000 R08: ff355f76030d7750 R09: ff355f7604b2582c
[ 4.010475] R10: ff355f760604d118 R11: fefefefefefefeff R12: 0000000000000000
[ 4.010558] R13: 0000000000000011 R14: ff355f760604d000 R15: ff355f76032cdc00
[ 4.010658] FS: 0000000000000000(0000) GS:ff355f76b4955000(0000) knlGS:0000000000000000
[ 4.010751] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4.010840] CR2: 00007fbfc58ff620 CR3: 0000000024642003 CR4: 0000000000771ef0
[ 4.010940] PKRU: 55555554
[ 4.010995] Call Trace:
[ 4.011042]
[ 4.011111] unregister_netdevice_many_notify+0x595/0xa40
[ 4.011189] default_device_exit_batch+0x328/0x3a0
[ 4.011257] ops_undo_list+0x10b/0x240
[ 4.011319] cleanup_net+0x1d7/0x2e0
[ 4.011381] process_one_work+0x162/0x360
[ 4.011445] worker_thread+0x16e/0x2d0
[ 4.011506] ? rescuer_thread+0x510/0x510
[ 4.011570] kthread+0xe1/0x120
[ 4.011632] ? kthread_park+0xa0/0xa0
[ 4.011694] ret_from_fork+0x16d/0x250
[ 4.011756] ? kthread_park+0xa0/0xa0
[ 4.011818] ret_from_fork_asm+0x11/0x20
[ 4.011883]
[ 4.011944] ---[ end trace 0000000000000000 ]---