[ 10.442840][ T174] ------------[ cut here ]------------ [ 10.443198][ T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/174 [ 10.443591][ T174] Modules linked in: [ 10.443862][ T174] CPU: 3 UID: 0 PID: 174 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full) [ 10.444306][ T174] Tainted: [W]=WARN [ 10.444471][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.444804][ T174] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250 [ 10.445093][ T174] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cb f0 ff b9 a6 ff ff [ 10.445888][ T174] RSP: 0018:ffa00000008a7aa8 EFLAGS: 00010286 [ 10.446167][ T174] RAX: 00000000ffffffa6 RBX: ff1100000b462940 RCX: 1ff4000000114f1b [ 10.446496][ T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b4629f0 [ 10.446839][ T174] RBP: ff110000080e9000 R08: 1fe220000168c53f R09: ff1100000c02d180 [ 10.447168][ T174] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff [ 10.447493][ T174] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000080e9000 [ 10.447836][ T174] FS: 00007fdd8ee8e840(0000) GS:ff1100008bcf9000(0000) knlGS:0000000000000000 [ 10.448219][ T174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.448498][ T174] CR2: 0000000000479648 CR3: 00000000091a3002 CR4: 0000000000771ef0 [ 10.448842][ T174] PKRU: 55555554 [ 10.449008][ T174] Call Trace: [ 10.449172][ T174] [ 10.449288][ T174] ? ip6_route_dev_notify+0x250/0x380 [ 10.449511][ T174] rtmsg_ifinfo_event.part.0+0x2c/0x130 [ 10.449759][ T174] ? notifier_call_chain+0xb0/0x320 [ 10.449989][ T174] rtmsg_ifinfo+0x5c/0xb0 [ 10.450178][ T174] register_netdevice+0x1526/0x1bc0 [ 10.450401][ T174] ? unregister_netdevice_queue+0x470/0x470 [ 10.450694][ T174] ? alloc_netdev_mqs+0xeda/0x1430 [ 10.450924][ T174] register_netdev+0x23/0x40 [ 10.451141][ T174] loopback_net_init+0x7d/0x150 [ 10.451365][ T174] ops_init+0x187/0x560 [ 10.451540][ T174] setup_net+0x11b/0x3b0 [ 10.451718][ T174] ? unregister_pernet_device+0x80/0x80 [ 10.451937][ T174] ? lockdep_init_map_type+0x5d/0x250 [ 10.452160][ T174] ? mutex_init_lockdep+0xf6/0x120 [ 10.452390][ T174] copy_net_ns+0x2fd/0x450 [ 10.452610][ T174] create_new_namespaces+0x371/0xa10 [ 10.452849][ T174] unshare_nsproxy_namespaces+0xa5/0x150 [ 10.453070][ T174] ksys_unshare+0x47e/0x8c0 [ 10.453291][ T174] ? walk_process_tree+0x350/0x350 [ 10.453510][ T174] ? __ia32_sys_open+0x1b0/0x1b0 [ 10.453754][ T174] __x64_sys_unshare+0x34/0x50 [ 10.453972][ T174] ? do_syscall_64+0x82/0xfc0 [ 10.454195][ T174] do_syscall_64+0x117/0xfc0 [ 10.454415][ T174] ? trace_hardirqs_off+0xd/0x30 [ 10.454644][ T174] ? exc_page_fault+0xee/0x100 [ 10.454880][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.455157][ T174] RIP: 0033:0x7fdd8f150bcb [ 10.455391][ T174] 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 [ 10.456176][ T174] RSP: 002b:00007ffc1fb46cc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 10.456500][ T174] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fdd8f150bcb [ 10.456836][ T174] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000 [ 10.457156][ T174] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 10.457476][ T174] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc1fb48ef0 [ 10.457812][ T174] R13: 0000000000000001 R14: 00007fdd8ee8e6f8 R15: 00007ffc1fb49868 [ 10.458153][ T174] [ 10.458321][ T174] irq event stamp: 18787 [ 10.458487][ T174] hardirqs last enabled at (18795): [] __up_console_sem+0x5a/0x70 [ 10.458885][ T174] hardirqs last disabled at (18804): [] __up_console_sem+0x3f/0x70 [ 10.459269][ T174] softirqs last enabled at (18268): [] __alloc_skb+0x4c5/0x5f0 [ 10.459668][ T174] softirqs last disabled at (18266): [] __alloc_skb+0x4c5/0x5f0 [ 10.460049][ T174] ---[ end trace 0000000000000000 ]--- [ 10.613163][ T173] ------------[ cut here ]------------ [ 10.613403][ T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: python3/173 [ 10.613829][ T173] Modules linked in: netdevsim [ 10.614041][ T173] CPU: 3 UID: 0 PID: 173 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full) [ 10.614385][ T173] Tainted: [W]=WARN [ 10.614525][ T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.614790][ T173] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250 [ 10.615019][ T173] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cb f0 ff b9 a6 ff ff [ 10.615636][ T173] RSP: 0018:ffa0000000897500 EFLAGS: 00010286 [ 10.615856][ T173] RAX: 00000000ffffffa6 RBX: ff1100000b6387c0 RCX: 1ff4000000112e66 [ 10.616118][ T173] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b638870 [ 10.616372][ T173] RBP: ff1100000afa2000 R08: 1fe22000016c710f R09: ff1100000c68d248 [ 10.616632][ T173] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff [ 10.616904][ T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000afa2000 [ 10.617164][ T173] FS: 00007f2b325a1400(0000) GS:ff1100008bcf9000(0000) knlGS:0000000000000000 [ 10.617471][ T173] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.617696][ T173] CR2: 000055a29a672170 CR3: 0000000008dd1002 CR4: 0000000000771ef0 [ 10.617957][ T173] PKRU: 55555554 [ 10.618085][ T173] Call Trace: [ 10.618213][ T173] [ 10.618302][ T173] rtmsg_ifinfo_event.part.0+0x2c/0x130 [ 10.618490][ T173] rtmsg_ifinfo+0x5c/0xb0 [ 10.618619][ T173] register_netdevice+0x1526/0x1bc0 [ 10.618804][ T173] ? unregister_netdevice_queue+0x470/0x470 [ 10.619019][ T173] ? __debugfs_create_file+0x2cf/0x3c0 [ 10.619198][ T173] nsim_init_netdevsim+0x80e/0xcb0 [netdevsim] [ 10.619419][ T173] nsim_create+0x45b/0x5b0 [netdevsim] [ 10.619594][ T173] __nsim_dev_port_add+0x30b/0x7a0 [netdevsim] [ 10.619821][ T173] ? add_timer_on+0x580/0x580 [ 10.619999][ T173] ? nsim_dev_get_vfs+0x90/0x90 [netdevsim] [ 10.620215][ T173] ? is_module_address+0x68/0x110 [ 10.620387][ T173] ? static_obj+0x5d/0x90 [ 10.620518][ T173] ? mark_held_locks+0x40/0x70 [ 10.620702][ T173] ? nsim_dev_hwstats_init+0x3a4/0x4d0 [netdevsim] [ 10.620923][ T173] nsim_drv_probe+0x59e/0x8d0 [netdevsim] [ 10.621097][ T173] call_driver_probe+0x61/0x1c0 [ 10.621270][ T173] really_probe+0x199/0x760 [ 10.621441][ T173] ? driver_probe_device+0x130/0x130 [ 10.621611][ T173] __driver_probe_device+0x1dc/0x430 [ 10.621792][ T173] driver_probe_device+0x4a/0x130 [ 10.621964][ T173] __device_attach_driver+0x16d/0x2a0 [ 10.622135][ T173] bus_for_each_drv+0x135/0x1e0 [ 10.622306][ T173] ? bus_find_device_reverse+0x1c0/0x1c0 [ 10.622481][ T173] __device_attach+0x1a6/0x410 [ 10.622656][ T173] ? __rwlock_init+0x150/0x150 [ 10.622831][ T173] ? __driver_attach_async_helper+0x2a0/0x2a0 [ 10.623044][ T173] ? do_raw_spin_unlock+0x59/0x250 [ 10.623213][ T173] ? _raw_spin_unlock+0x2d/0x50 [ 10.623385][ T173] device_initial_probe+0x8b/0xc0 [ 10.623555][ T173] bus_probe_device+0x63/0x160 [ 10.623735][ T173] device_add+0xb16/0x1130 [ 10.623909][ T173] ? __fw_devlink_link_to_consumers.isra.0+0x2d0/0x2d0 [ 10.624117][ T173] ? __init_waitqueue_head+0xcb/0x160 [ 10.624285][ T173] ? pm_runtime_init+0x323/0x3f0 [ 10.624459][ T173] new_device_store+0x3d4/0x730 [netdevsim] [ 10.624679][ T173] ? __lock_release.isra.0+0x6b/0x1a0 [ 10.624849][ T173] ? new_port_store+0x1a0/0x1a0 [netdevsim] [ 10.625183][ T173] ? sysfs_file_kobj+0xb3/0x1e0 [ 10.625467][ T173] ? sysfs_file_kobj+0xbd/0x1e0 [ 10.625770][ T173] ? sysfs_file_ops+0x140/0x140 [ 10.626050][ T173] kernfs_fop_write_iter+0x335/0x510 [ 10.626334][ T173] ? kernfs_ops+0xf0/0xf0 [ 10.626550][ T173] new_sync_write+0x333/0x750 [ 10.626851][ T173] ? __lock_acquire+0x508/0xc10 [ 10.627135][ T173] ? new_sync_read+0x740/0x740 [ 10.627422][ T173] ? lock_acquire.part.0+0xbc/0x260 [ 10.627721][ T173] ? ksys_write+0x116/0x250 [ 10.628011][ T173] vfs_write+0x6a4/0xc10 [ 10.628239][ T173] ksys_write+0x116/0x250 [ 10.628455][ T173] ? __ia32_sys_read+0xc0/0xc0 [ 10.628757][ T173] ? kernfs_fop_llseek+0x160/0x1f0 [ 10.629043][ T173] ? rcu_is_watching+0x15/0xd0 [ 10.629333][ T173] do_syscall_64+0x117/0xfc0 [ 10.629617][ T173] ? trace_hardirqs_off+0xd/0x30 [ 10.629913][ T173] ? exc_page_fault+0xee/0x100 [ 10.630198][ T173] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.630548][ T173] RIP: 0033:0x7f2b3272908e [ 10.630859][ T173] 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 [ 10.631880][ T173] RSP: 002b:00007ffca5617b40 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 10.632313][ T173] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f2b3272908e [ 10.632761][ T173] RDX: 0000000000000009 RSI: 00005601f42974b0 RDI: 0000000000000006 [ 10.633185][ T173] RBP: 00007ffca5617b50 R08: 0000000000000000 R09: 0000000000000000 [ 10.633608][ T173] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f2b325a1390 [ 10.634044][ T173] R13: 00005601f42974b0 R14: 0000000000000006 R15: 00007f2b3252d0d0 [ 10.634480][ T173] [ 10.634703][ T173] irq event stamp: 332885 [ 10.634913][ T173] hardirqs last enabled at (332893): [] __up_console_sem+0x5a/0x70 [ 10.635407][ T173] hardirqs last disabled at (332900): [] __up_console_sem+0x3f/0x70 [ 10.635911][ T173] softirqs last enabled at (332150): [] handle_softirqs+0x611/0x940 [ 10.636398][ T173] softirqs last disabled at (332093): [] __irq_exit_rcu+0x103/0x1c0 [ 10.636902][ T173] ---[ end trace 0000000000000000 ]--- [ 11.239589][ T65] ------------[ cut here ]------------ [ 11.239967][ T65] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: kworker/u16:1/65 [ 11.240381][ T65] Modules linked in: netdevsim [ 11.240740][ T65] CPU: 1 UID: 0 PID: 65 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full) [ 11.241206][ T65] Tainted: [W]=WARN [ 11.241360][ T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.241685][ T65] Workqueue: netns cleanup_net [ 11.241910][ T65] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250 [ 11.242175][ T65] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cb f0 ff b9 a6 ff ff [ 11.242928][ T65] RSP: 0018:ffa0000000467878 EFLAGS: 00010286 [ 11.243181][ T65] RAX: 00000000ffffffa6 RBX: ff1100000c2ba940 RCX: 1ff400000008ced5 [ 11.243495][ T65] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c2ba9f0 [ 11.243820][ T65] RBP: ff110000080e9000 R08: 1fe220000185753f R09: ff1100000774aed0 [ 11.244117][ T65] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff [ 11.244446][ T65] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 11.244768][ T65] FS: 0000000000000000(0000) GS:ff1100008bbf9000(0000) knlGS:0000000000000000 [ 11.245150][ T65] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.245430][ T65] CR2: 00007fd35780d2a0 CR3: 0000000010d39006 CR4: 0000000000771ef0 [ 11.245767][ T65] PKRU: 55555554 [ 11.245921][ T65] Call Trace: [ 11.246071][ T65] [ 11.246180][ T65] unregister_netdevice_many_notify+0xce3/0x1b30 [ 11.246441][ T65] ? unregister_netdevice_queued+0x80/0x80 [ 11.246724][ T65] ? perf_trace_sched_switch+0x7d0/0x7d0 [ 11.246938][ T65] default_device_exit_batch+0x38b/0x600 [ 11.247151][ T65] ? unregister_netdev+0x60/0x60 [ 11.247359][ T65] ? perf_trace_sched_switch+0x7d0/0x7d0 [ 11.247576][ T65] ops_undo_list+0x2ce/0x8f0 [ 11.247805][ T65] ? rtnl_net_dumpid_one+0x2d0/0x2d0 [ 11.248007][ T65] ? __lock_release.isra.0+0x6b/0x1a0 [ 11.248221][ T65] cleanup_net+0x431/0x890 [ 11.248423][ T65] ? net_passive_dec+0x1c0/0x1c0 [ 11.248627][ T65] ? process_one_work+0xdb7/0x1410 [ 11.248840][ T65] ? lock_acquire+0x134/0x160 [ 11.249038][ T65] ? rcu_is_watching+0x15/0xd0 [ 11.249247][ T65] process_one_work+0xdf8/0x1410 [ 11.249474][ T65] ? pwq_dec_nr_in_flight+0x710/0x710 [ 11.249696][ T65] ? lock_acquire.part.0+0xbc/0x260 [ 11.249906][ T65] worker_thread+0x4f1/0xd60 [ 11.250112][ T65] ? rescuer_thread+0x1320/0x1320 [ 11.250341][ T65] ? __kthread_parkme+0xbd/0x210 [ 11.250539][ T65] ? rescuer_thread+0x1320/0x1320 [ 11.250747][ T65] kthread+0x367/0x460 [ 11.250892][ T65] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 11.251142][ T65] ? kthread_affine_node+0x330/0x330 [ 11.251348][ T65] ret_from_fork+0x474/0x6b0 [ 11.251548][ T65] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 11.251819][ T65] ? __switch_to+0x5a3/0xe00 [ 11.252020][ T65] ? kthread_affine_node+0x330/0x330 [ 11.252222][ T65] ret_from_fork_asm+0x11/0x20 [ 11.252433][ T65] [ 11.252577][ T65] irq event stamp: 4911 [ 11.252738][ T65] hardirqs last enabled at (4921): [] __up_console_sem+0x5a/0x70 [ 11.253095][ T65] hardirqs last disabled at (4928): [] __up_console_sem+0x3f/0x70 [ 11.253442][ T65] softirqs last enabled at (4546): [] handle_softirqs+0x611/0x940 [ 11.253813][ T65] softirqs last disabled at (4535): [] __irq_exit_rcu+0x103/0x1c0 [ 11.254163][ T65] ---[ end trace 0000000000000000 ]---