[ 12.097331] ------------[ cut here ]------------
[ 12.097412] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: ip/976
[ 12.097505] Modules linked in: netconsole netdevsim
[ 12.097569] CPU: 2 UID: 0 PID: 976 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 12.097658] Tainted: [W]=WARN
[ 12.097712] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.097781] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 12.097843] 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
[ 12.097980] RSP: 0018:ff56fe98c0ba3cc8 EFLAGS: 00010286
[ 12.098043] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 12.098117] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76018f3c00
[ 12.098190] RBP: 0000000000000000 R08: ff355f7602facf10 R09: ff355f7604b3102c
[ 12.098270] R10: ff355f76032aa118 R11: fefefefefefefeff R12: 0000000000000000
[ 12.098345] R13: 0000000000000010 R14: ff355f76032aa000 R15: ff355f76018f3c00
[ 12.098424] FS: 00007f64d90aa840(0000) GS:ff355f76b4955000(0000) knlGS:0000000000000000
[ 12.098500] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 12.098568] CR2: 00007f64d92abc20 CR3: 00000000063c0006 CR4: 0000000000771ef0
[ 12.098644] PKRU: 55555554
[ 12.098691] Call Trace:
[ 12.098740]
[ 12.098788] rtmsg_ifinfo+0x3c/0xa0
[ 12.098844] register_netdevice+0x8e1/0xa70
[ 12.098902] register_netdev+0x1e/0x30
[ 12.098963] loopback_net_init+0x57/0xb0
[ 12.099020] ? vsock_sysctl_init_net+0xb6/0x140
[ 12.099084] ops_init+0x68/0x140
[ 12.099140] setup_net+0x85/0x150
[ 12.099195] copy_net_ns+0xf5/0x200
[ 12.099257] create_new_namespaces+0x117/0x2f0
[ 12.099322] unshare_nsproxy_namespaces+0x85/0xb0
[ 12.099383] ksys_unshare+0x346/0x5e0
[ 12.099441] __x64_sys_unshare+0x12/0x20
[ 12.099496] do_syscall_64+0x104/0xfc0
[ 12.099553] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 12.099617] RIP: 0033:0x7f64d936cbcb
[ 12.099672] 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
[ 12.099802] RSP: 002b:00007ffec9df20e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[ 12.099879] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f64d936cbcb
[ 12.099958] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 12.100032] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[ 12.100107] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffec9df4310
[ 12.100181] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffec9df58a3
[ 12.100261]
[ 12.100308] ---[ end trace 0000000000000000 ]---
[ 12.100832] ------------[ cut here ]------------
[ 12.100868] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/975
[ 12.100932] Modules linked in: netconsole netdevsim
[ 12.100964] CPU: 0 UID: 0 PID: 975 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 12.101024] Tainted: [W]=WARN
[ 12.101045] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.101080] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 12.101107] 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
[ 12.101205] RSP: 0018:ff56fe98c0b739d0 EFLAGS: 00010286
[ 12.101233] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 12.101280] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76018e4200
[ 12.101324] RBP: 0000000000000000 R08: ff355f76048db850 R09: ff355f76032ac030
[ 12.101365] R10: ff355f7604af2118 R11: fefefefefefefeff R12: 0000000000000000
[ 12.101409] R13: 0000000000000010 R14: ff355f7604af2000 R15: ff355f76018e4200
[ 12.101454] FS: 00007f206e10a400(0000) GS:ff355f76b4855000(0000) knlGS:0000000000000000
[ 12.101499] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 12.101534] CR2: 000055bf0c4fb7f8 CR3: 000000000c273005 CR4: 0000000000771ef0
[ 12.101579] PKRU: 55555554
[ 12.101594] Call Trace:
[ 12.101609]
[ 12.101624] rtmsg_ifinfo+0x3c/0xa0
[ 12.101643] register_netdevice+0x8e1/0xa70
[ 12.101664] nsim_create+0x319/0x410 [netdevsim]
[ 12.101696] __nsim_dev_port_add+0x1cc/0x420 [netdevsim]
[ 12.101721] nsim_drv_probe+0x655/0x750 [netdevsim]
[ 12.101750] really_probe+0xc9/0x290
[ 12.101774] ? driver_probe_device+0xe0/0xe0
[ 12.101805] __driver_probe_device+0x8d/0x160
[ 12.101834] driver_probe_device+0x1f/0xe0
[ 12.101855] __device_attach_driver+0x71/0x100
[ 12.101883] bus_for_each_drv+0x9d/0x100
[ 12.101910] __device_attach+0xb0/0x1b0
[ 12.101936] device_initial_probe+0x4a/0x70
[ 12.101958] bus_probe_device+0x3c/0xb0
[ 12.101980] device_add+0x675/0x8a0
[ 12.102002] new_device_store+0x19b/0x2b0 [netdevsim]
[ 12.102037] kernfs_fop_write_iter+0x151/0x200
[ 12.102066] vfs_write+0x257/0x5c0
[ 12.102090] ksys_write+0x7b/0x110
[ 12.102112] do_syscall_64+0x104/0xfc0
[ 12.102136] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 12.102168] RIP: 0033:0x7f206e29208e
[ 12.102189] 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
[ 12.102291] RSP: 002b:00007ffe481c8f30 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 12.102335] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f206e29208e
[ 12.102378] RDX: 0000000000000009 RSI: 000055bf0c4b37b0 RDI: 0000000000000006
[ 12.102417] RBP: 00007ffe481c8f40 R08: 0000000000000000 R09: 0000000000000000
[ 12.102461] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f206e10a390
[ 12.102501] R13: 000055bf0c4b37b0 R14: 0000000000000006 R15: 00007f206e0990d0
[ 12.102547]
[ 12.102562] ---[ end trace 0000000000000000 ]---
[ 12.257508] ------------[ cut here ]------------
[ 12.257579] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: kworker/u16:1/65
[ 12.257674] Modules linked in: netconsole netdevsim
[ 12.257739] CPU: 2 UID: 0 PID: 65 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 12.257831] Tainted: [W]=WARN
[ 12.257885] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.257961] Workqueue: netns cleanup_net
[ 12.258040] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 12.258133] 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
[ 12.258349] RSP: 0018:ff56fe98c023fc78 EFLAGS: 00010286
[ 12.258441] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 12.258572] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f7601906a00
[ 12.258664] RBP: 0000000000000000 R08: ff355f7602facf10 R09: ff355f7604b2802c
[ 12.258763] R10: ff355f76032aa118 R11: fefefefefefefeff R12: 0000000000000000
[ 12.258838] R13: 0000000000000011 R14: ff355f76032aa000 R15: ff355f7601906a00
[ 12.258927] FS: 0000000000000000(0000) GS:ff355f76b4955000(0000) knlGS:0000000000000000
[ 12.259032] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 12.259131] CR2: 00007f7bcbe09f98 CR3: 0000000024642002 CR4: 0000000000771ef0
[ 12.259246] PKRU: 55555554
[ 12.259309] Call Trace:
[ 12.259374]
[ 12.259437] unregister_netdevice_many_notify+0x595/0xa40
[ 12.259539] default_device_exit_batch+0x328/0x3a0
[ 12.259613] ops_undo_list+0x10b/0x240
[ 12.259686] cleanup_net+0x1d7/0x2e0
[ 12.259774] process_one_work+0x162/0x360
[ 12.259849] worker_thread+0x16e/0x2d0
[ 12.259928] ? rescuer_thread+0x510/0x510
[ 12.260007] kthread+0xe1/0x120
[ 12.260080] ? kthread_park+0xa0/0xa0
[ 12.260154] ret_from_fork+0x16d/0x250
[ 12.260212] ? kthread_park+0xa0/0xa0
[ 12.260279] ret_from_fork_asm+0x11/0x20
[ 12.260360]
[ 12.260405] ---[ end trace 0000000000000000 ]---