[ 14.278391] ------------[ cut here ]------------ [ 14.278438] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: ip/1150 [ 14.278496] Modules linked in: netconsole netdevsim [ 14.278529] CPU: 3 UID: 0 PID: 1150 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy) [ 14.278587] Tainted: [W]=WARN [ 14.278608] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.278643] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110 [ 14.278671] 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 [ 14.278771] RSP: 0018:ff56fe98c0d53cc8 EFLAGS: 00010286 [ 14.278802] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000 [ 14.278842] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76032d8100 [ 14.278886] RBP: 0000000000000000 R08: ff355f760496ead0 R09: ff355f76032ad02c [ 14.278931] R10: ff355f760619e118 R11: fefefefefefefeff R12: 0000000000000000 [ 14.278971] R13: 0000000000000010 R14: ff355f760619e000 R15: ff355f76032d8100 [ 14.279015] FS: 00007f26164dd840(0000) GS:ff355f76b49d5000(0000) knlGS:0000000000000000 [ 14.279058] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 14.279092] CR2: 00007f26166dec20 CR3: 00000000061c7003 CR4: 0000000000771ef0 [ 14.279135] PKRU: 55555554 [ 14.279151] Call Trace: [ 14.279167] [ 14.279182] rtmsg_ifinfo+0x3c/0xa0 [ 14.279206] register_netdevice+0x8e1/0xa70 [ 14.279226] register_netdev+0x1e/0x30 [ 14.279249] loopback_net_init+0x57/0xb0 [ 14.279275] ? vsock_sysctl_init_net+0xb6/0x140 [ 14.279304] ops_init+0x68/0x140 [ 14.279331] setup_net+0x85/0x150 [ 14.279352] copy_net_ns+0xf5/0x200 [ 14.279370] create_new_namespaces+0x117/0x2f0 [ 14.279400] unshare_nsproxy_namespaces+0x85/0xb0 [ 14.279427] ksys_unshare+0x346/0x5e0 [ 14.279451] __x64_sys_unshare+0x12/0x20 [ 14.279471] do_syscall_64+0x104/0xfc0 [ 14.279493] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.279525] RIP: 0033:0x7f261679fbcb [ 14.279545] 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 [ 14.279643] RSP: 002b:00007ffd05b715e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 14.279682] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f261679fbcb [ 14.279725] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000 [ 14.279770] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 [ 14.279811] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd05b73810 [ 14.279851] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd05b7488f [ 14.279896] [ 14.279910] ---[ end trace 0000000000000000 ]--- [ 14.280370] ------------[ cut here ]------------ [ 14.280404] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/1148 [ 14.280463] Modules linked in: netconsole netdevsim [ 14.280496] CPU: 0 UID: 0 PID: 1148 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy) [ 14.280552] Tainted: [W]=WARN [ 14.280574] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.280608] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110 [ 14.280636] 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 [ 14.280734] RSP: 0018:ff56fe98c0ccb9d0 EFLAGS: 00010286 [ 14.280763] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000 [ 14.280803] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76018b5c00 [ 14.280845] RBP: 0000000000000000 R08: ff355f76030d83d0 R09: ff355f760c069030 [ 14.280888] R10: ff355f7608946118 R11: fefefefefefefeff R12: 0000000000000000 [ 14.280936] R13: 0000000000000010 R14: ff355f7608946000 R15: ff355f76018b5c00 [ 14.280989] FS: 00007f859eb82400(0000) GS:ff355f76b4855000(0000) knlGS:0000000000000000 [ 14.281034] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 14.281066] CR2: 0000556011df7888 CR3: 0000000008851002 CR4: 0000000000771ef0 [ 14.281110] PKRU: 55555554 [ 14.281126] Call Trace: [ 14.281141] [ 14.281156] rtmsg_ifinfo+0x3c/0xa0 [ 14.281176] register_netdevice+0x8e1/0xa70 [ 14.281197] nsim_create+0x319/0x410 [netdevsim] [ 14.281225] __nsim_dev_port_add+0x1cc/0x420 [netdevsim] [ 14.281260] nsim_drv_probe+0x655/0x750 [netdevsim] [ 14.281285] really_probe+0xc9/0x290 [ 14.281311] ? driver_probe_device+0xe0/0xe0 [ 14.281340] __driver_probe_device+0x8d/0x160 [ 14.281369] driver_probe_device+0x1f/0xe0 [ 14.281389] __device_attach_driver+0x71/0x100 [ 14.281417] bus_for_each_drv+0x9d/0x100 [ 14.281438] __device_attach+0xb0/0x1b0 [ 14.281461] device_initial_probe+0x4a/0x70 [ 14.281480] bus_probe_device+0x3c/0xb0 [ 14.281501] device_add+0x675/0x8a0 [ 14.281522] new_device_store+0x19b/0x2b0 [netdevsim] [ 14.281553] kernfs_fop_write_iter+0x151/0x200 [ 14.281582] vfs_write+0x257/0x5c0 [ 14.281606] ksys_write+0x7b/0x110 [ 14.281628] do_syscall_64+0x104/0xfc0 [ 14.281652] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.281683] RIP: 0033:0x7f859ed0a08e [ 14.281704] 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 [ 14.281797] RSP: 002b:00007fff37a77d40 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 14.281844] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f859ed0a08e [ 14.281886] RDX: 0000000000000008 RSI: 0000556011def250 RDI: 0000000000000006 [ 14.281930] RBP: 00007fff37a77d50 R08: 0000000000000000 R09: 0000000000000000 [ 14.281975] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f859eb82390 [ 14.282019] R13: 0000556011def250 R14: 0000000000000006 R15: 00007f859eb110d0 [ 14.282066] [ 14.282081] ---[ end trace 0000000000000000 ]--- [ 14.435651] ------------[ cut here ]------------ [ 14.435727] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: kworker/u16:1/65 [ 14.435818] Modules linked in: netconsole netdevsim [ 14.435882] CPU: 2 UID: 0 PID: 65 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy) [ 14.435978] Tainted: [W]=WARN [ 14.436032] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.436099] Workqueue: netns cleanup_net [ 14.436155] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110 [ 14.436218] 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 [ 14.436352] RSP: 0018:ff56fe98c023fc78 EFLAGS: 00010286 [ 14.436415] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000 [ 14.436490] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76032d8400 [ 14.436565] RBP: 0000000000000000 R08: ff355f760496ead0 R09: ff355f76019b002c [ 14.436639] R10: ff355f760619e118 R11: fefefefefefefeff R12: 0000000000000000 [ 14.436713] R13: 0000000000000011 R14: ff355f760619e000 R15: ff355f76032d8400 [ 14.436792] FS: 0000000000000000(0000) GS:ff355f76b4955000(0000) knlGS:0000000000000000 [ 14.436869] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 14.436944] CR2: 00007f1d5894c2a0 CR3: 0000000024642004 CR4: 0000000000771ef0 [ 14.437021] PKRU: 55555554 [ 14.437068] Call Trace: [ 14.437116] [ 14.437163] unregister_netdevice_many_notify+0x595/0xa40 [ 14.437226] default_device_exit_batch+0x328/0x3a0 [ 14.437296] ops_undo_list+0x10b/0x240 [ 14.437353] cleanup_net+0x1d7/0x2e0 [ 14.437409] process_one_work+0x162/0x360 [ 14.437468] worker_thread+0x16e/0x2d0 [ 14.437524] ? rescuer_thread+0x510/0x510 [ 14.437580] kthread+0xe1/0x120 [ 14.437636] ? kthread_park+0xa0/0xa0 [ 14.437692] ret_from_fork+0x16d/0x250 [ 14.437752] ? kthread_park+0xa0/0xa0 [ 14.437807] ret_from_fork_asm+0x11/0x20 [ 14.437864] [ 14.437911] ---[ end trace 0000000000000000 ]---