[ 12.174181][ T174] ------------[ cut here ]------------
[ 12.174442][ T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/174
[ 12.174689][ T174] Modules linked in:
[ 12.174828][ T174] CPU: 0 UID: 0 PID: 174 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 12.175188][ T174] Tainted: [W]=WARN
[ 12.175302][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.175478][ T174] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 12.175666][ 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
[ 12.176162][ T174] RSP: 0018:ffa0000000847aa8 EFLAGS: 00010286
[ 12.176344][ T174] RAX: 00000000ffffffa6 RBX: ff1100000512b540 RCX: 1ff4000000108f1b
[ 12.176564][ T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000512b5f0
[ 12.176767][ T174] RBP: ff110000089a9000 R08: 1fe2200000a256bf R09: ff1100000c668b80
[ 12.176977][ T174] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 12.177179][ T174] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000089a9000
[ 12.177393][ T174] FS: 00007f6f0609b840(0000) GS:ff1100008fb79000(0000) knlGS:0000000000000000
[ 12.177636][ T174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 12.177808][ T174] CR2: 0000000000479648 CR3: 0000000008fa3002 CR4: 0000000000771ef0
[ 12.178017][ T174] PKRU: 55555554
[ 12.178118][ T174] Call Trace:
[ 12.178221][ T174]
[ 12.178299][ T174] ? ip6_route_dev_notify+0x250/0x380
[ 12.178442][ T174] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 12.178577][ T174] ? notifier_call_chain+0xb0/0x320
[ 12.178718][ T174] rtmsg_ifinfo+0x5c/0xb0
[ 12.178824][ T174] register_netdevice+0x1526/0x1bc0
[ 12.178967][ T174] ? unregister_netdevice_queue+0x470/0x470
[ 12.179135][ T174] ? alloc_netdev_mqs+0xeda/0x1430
[ 12.179282][ T174] register_netdev+0x23/0x40
[ 12.179416][ T174] loopback_net_init+0x7d/0x150
[ 12.179553][ T174] ops_init+0x187/0x560
[ 12.179659][ T174] setup_net+0x11b/0x3b0
[ 12.179762][ T174] ? unregister_pernet_device+0x80/0x80
[ 12.179900][ T174] ? lockdep_init_map_type+0x5d/0x250
[ 12.180037][ T174] ? mutex_init_lockdep+0xf6/0x120
[ 12.180175][ T174] copy_net_ns+0x2fd/0x450
[ 12.180315][ T174] create_new_namespaces+0x371/0xa10
[ 12.180453][ T174] unshare_nsproxy_namespaces+0xa5/0x150
[ 12.180588][ T174] ksys_unshare+0x47e/0x8c0
[ 12.180725][ T174] ? walk_process_tree+0x350/0x350
[ 12.180869][ T174] ? __ia32_sys_open+0x1b0/0x1b0
[ 12.181010][ T174] __x64_sys_unshare+0x34/0x50
[ 12.181145][ T174] ? do_syscall_64+0x82/0xfc0
[ 12.181286][ T174] do_syscall_64+0x117/0xfc0
[ 12.181420][ T174] ? trace_hardirqs_off+0xd/0x30
[ 12.181556][ T174] ? exc_page_fault+0xee/0x100
[ 12.181691][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 12.181864][ T174] RIP: 0033:0x7f6f0635dbcb
[ 12.182009][ 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
[ 12.182604][ T174] RSP: 002b:00007fff8c029698 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[ 12.182808][ T174] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f6f0635dbcb
[ 12.183106][ T174] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 12.183314][ T174] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 12.183517][ T174] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff8c02b8c0
[ 12.183824][ T174] R13: 0000000000000001 R14: 00007f6f0609b6f8 R15: 00007fff8c02c864
[ 12.184039][ T174]
[ 12.184142][ T174] irq event stamp: 19143
[ 12.184338][ T174] hardirqs last enabled at (19151): [] __up_console_sem+0x5a/0x70
[ 12.184580][ T174] hardirqs last disabled at (19158): [] __up_console_sem+0x3f/0x70
[ 12.184815][ T174] softirqs last enabled at (18634): [] __alloc_skb+0x4c5/0x5f0
[ 12.185057][ T174] softirqs last disabled at (18632): [] __alloc_skb+0x4c5/0x5f0
[ 12.185295][ T174] ---[ end trace 0000000000000000 ]---
[ 12.350595][ T173] ------------[ cut here ]------------
[ 12.351040][ T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: python3/173
[ 12.351643][ T173] Modules linked in: netdevsim
[ 12.352019][ T173] CPU: 3 UID: 0 PID: 173 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 12.352596][ T173] Tainted: [W]=WARN
[ 12.352798][ T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.353190][ T173] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 12.353579][ 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
[ 12.354590][ T173] RSP: 0018:ffa00000007b7500 EFLAGS: 00010286
[ 12.354950][ T173] RAX: 00000000ffffffa6 RBX: ff1100000b2f84c0 RCX: 1ff40000000f6e66
[ 12.355359][ T173] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b2f8570
[ 12.355779][ T173] RBP: ff11000004f92000 R08: 1fe220000165f0af R09: ff11000008ea5248
[ 12.356203][ T173] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 12.356624][ T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000004f92000
[ 12.357042][ T173] FS: 00007fc218bf5400(0000) GS:ff1100008fcf9000(0000) knlGS:0000000000000000
[ 12.357525][ T173] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 12.357872][ T173] CR2: 0000558a0267bc80 CR3: 0000000004b08001 CR4: 0000000000771ef0
[ 12.358299][ T173] PKRU: 55555554
[ 12.358507][ T173] Call Trace:
[ 12.358714][ T173]
[ 12.358864][ T173] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 12.359133][ T173] rtmsg_ifinfo+0x5c/0xb0
[ 12.359345][ T173] register_netdevice+0x1526/0x1bc0
[ 12.359611][ T173] ? unregister_netdevice_queue+0x470/0x470
[ 12.359949][ T173] ? __debugfs_create_file+0x2cf/0x3c0
[ 12.360232][ T173] nsim_init_netdevsim+0x80e/0xcb0 [netdevsim]
[ 12.360581][ T173] nsim_create+0x45b/0x5b0 [netdevsim]
[ 12.360863][ T173] __nsim_dev_port_add+0x30b/0x7a0 [netdevsim]
[ 12.361190][ T173] ? add_timer_on+0x580/0x580
[ 12.361458][ T173] ? nsim_dev_get_vfs+0x90/0x90 [netdevsim]
[ 12.361789][ T173] ? is_module_address+0x68/0x110
[ 12.362063][ T173] ? static_obj+0x5d/0x90
[ 12.362269][ T173] ? mark_held_locks+0x40/0x70
[ 12.362540][ T173] ? nsim_dev_hwstats_init+0x3a4/0x4d0 [netdevsim]
[ 12.362889][ T173] nsim_drv_probe+0x59e/0x8d0 [netdevsim]
[ 12.363168][ T173] call_driver_probe+0x61/0x1c0
[ 12.363448][ T173] really_probe+0x199/0x760
[ 12.363716][ T173] ? driver_probe_device+0x130/0x130
[ 12.363997][ T173] __driver_probe_device+0x1dc/0x430
[ 12.364278][ T173] driver_probe_device+0x4a/0x130
[ 12.364545][ T173] __device_attach_driver+0x16d/0x2a0
[ 12.364815][ T173] bus_for_each_drv+0x135/0x1e0
[ 12.365089][ T173] ? bus_find_device_reverse+0x1c0/0x1c0
[ 12.365373][ T173] __device_attach+0x1a6/0x410
[ 12.365638][ T173] ? __rwlock_init+0x150/0x150
[ 12.365914][ T173] ? __driver_attach_async_helper+0x2a0/0x2a0
[ 12.366259][ T173] ? do_raw_spin_unlock+0x59/0x250
[ 12.366532][ T173] ? _raw_spin_unlock+0x2d/0x50
[ 12.366807][ T173] device_initial_probe+0x8b/0xc0
[ 12.367083][ T173] bus_probe_device+0x63/0x160
[ 12.367365][ T173] device_add+0xb16/0x1130
[ 12.367633][ T173] ? __fw_devlink_link_to_consumers.isra.0+0x2d0/0x2d0
[ 12.367975][ T173] ? __init_waitqueue_head+0xcb/0x160
[ 12.368246][ T173] ? pm_runtime_init+0x323/0x3f0
[ 12.368519][ T173] new_device_store+0x3d4/0x730 [netdevsim]
[ 12.368861][ T173] ? __lock_release.isra.0+0x6b/0x1a0
[ 12.369131][ T173] ? new_port_store+0x1a0/0x1a0 [netdevsim]
[ 12.369481][ T173] ? sysfs_file_kobj+0xb3/0x1e0
[ 12.369754][ T173] ? sysfs_file_kobj+0xbd/0x1e0
[ 12.370029][ T173] ? sysfs_file_ops+0x140/0x140
[ 12.370300][ T173] kernfs_fop_write_iter+0x335/0x510
[ 12.370578][ T173] ? kernfs_ops+0xf0/0xf0
[ 12.370782][ T173] new_sync_write+0x333/0x750
[ 12.371062][ T173] ? __lock_acquire+0x508/0xc10
[ 12.371349][ T173] ? new_sync_read+0x740/0x740
[ 12.371626][ T173] ? lock_acquire.part.0+0xbc/0x260
[ 12.371908][ T173] ? ksys_write+0x116/0x250
[ 12.372186][ T173] vfs_write+0x6a4/0xc10
[ 12.372400][ T173] ksys_write+0x116/0x250
[ 12.372604][ T173] ? __ia32_sys_read+0xc0/0xc0
[ 12.372881][ T173] ? kernfs_fop_llseek+0x160/0x1f0
[ 12.373149][ T173] ? rcu_is_watching+0x15/0xd0
[ 12.373428][ T173] do_syscall_64+0x117/0xfc0
[ 12.373698][ T173] ? irq_exit_rcu+0x1a/0x30
[ 12.373981][ T173] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 12.374319][ T173] RIP: 0033:0x7fc218d7d08e
[ 12.374601][ 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
[ 12.375630][ T173] RSP: 002b:00007ffe3915fc70 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 12.376304][ T173] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007fc218d7d08e
[ 12.376724][ T173] RDX: 0000000000000008 RSI: 0000561f94d4aab0 RDI: 0000000000000006
[ 12.377137][ T173] RBP: 00007ffe3915fc80 R08: 0000000000000000 R09: 0000000000000000
[ 12.377550][ T173] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fc218bf5390
[ 12.377958][ T173] R13: 0000561f94d4aab0 R14: 0000000000000006 R15: 00007fc218b810d0
[ 12.378807][ T173]
[ 12.379018][ T173] irq event stamp: 322729
[ 12.379221][ T173] hardirqs last enabled at (322737): [] __up_console_sem+0x5a/0x70
[ 12.379909][ T173] hardirqs last disabled at (322746): [] __up_console_sem+0x3f/0x70
[ 12.380379][ T173] softirqs last enabled at (321982): [] handle_softirqs+0x611/0x940
[ 12.380844][ T173] softirqs last disabled at (321939): [] __irq_exit_rcu+0x103/0x1c0
[ 12.381531][ T173] ---[ end trace 0000000000000000 ]---
[ 12.934908][ T12] ------------[ cut here ]------------
[ 12.935200][ T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: kworker/u16:0/12
[ 12.935681][ T12] Modules linked in: netdevsim
[ 12.936019][ T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 12.936491][ T12] Tainted: [W]=WARN
[ 12.936643][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.936904][ T12] Workqueue: netns cleanup_net
[ 12.937134][ T12] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 12.937399][ T12] 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
[ 12.938153][ T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[ 12.938424][ T12] RAX: 00000000ffffffa6 RBX: ff1100000b2e5b40 RCX: 1ff4000000018ed5
[ 12.938717][ T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b2e5bf0
[ 12.939080][ T12] RBP: ff110000089a9000 R08: 1fe220000165cb7f R09: ff11000001b051d0
[ 12.939386][ T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 12.939696][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 12.940002][ T12] FS: 0000000000000000(0000) GS:ff1100008fcf9000(0000) knlGS:0000000000000000
[ 12.940360][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 12.940613][ T12] CR2: 00007fc218b11000 CR3: 0000000004b08004 CR4: 0000000000771ef0
[ 12.940915][ T12] PKRU: 55555554
[ 12.941071][ T12] Call Trace:
[ 12.941225][ T12]
[ 12.941332][ T12] unregister_netdevice_many_notify+0xce3/0x1b30
[ 12.941595][ T12] ? unregister_netdevice_queued+0x80/0x80
[ 12.941849][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 12.942061][ T12] default_device_exit_batch+0x38b/0x600
[ 12.942269][ T12] ? unregister_netdev+0x60/0x60
[ 12.942461][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 12.942665][ T12] ops_undo_list+0x2ce/0x8f0
[ 12.942876][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 12.943073][ T12] ? __lock_release.isra.0+0x6b/0x1a0
[ 12.943279][ T12] cleanup_net+0x431/0x890
[ 12.943481][ T12] ? net_passive_dec+0x1c0/0x1c0
[ 12.943671][ T12] ? process_one_work+0xdb7/0x1410
[ 12.943874][ T12] ? lock_acquire+0x134/0x160
[ 12.944069][ T12] ? rcu_is_watching+0x15/0xd0
[ 12.944275][ T12] process_one_work+0xdf8/0x1410
[ 12.944493][ T12] ? pwq_dec_nr_in_flight+0x710/0x710
[ 12.944700][ T12] ? lock_acquire.part.0+0xbc/0x260
[ 12.944913][ T12] worker_thread+0x4f1/0xd60
[ 12.945122][ T12] ? rescuer_thread+0x1320/0x1320
[ 12.945330][ T12] kthread+0x367/0x460
[ 12.945488][ T12] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 12.945737][ T12] ? kthread_affine_node+0x330/0x330
[ 12.945976][ T12] ret_from_fork+0x474/0x6b0
[ 12.946173][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 12.946435][ T12] ? __switch_to+0x5a3/0xe00
[ 12.946633][ T12] ? kthread_affine_node+0x330/0x330
[ 12.946834][ T12] ret_from_fork_asm+0x11/0x20
[ 12.947055][ T12]
[ 12.947205][ T12] irq event stamp: 2319
[ 12.947366][ T12] hardirqs last enabled at (2327): [] __up_console_sem+0x5a/0x70
[ 12.947712][ T12] hardirqs last disabled at (2334): [] __up_console_sem+0x3f/0x70
[ 12.948066][ T12] softirqs last enabled at (1972): [] handle_softirqs+0x611/0x940
[ 12.948439][ T12] softirqs last disabled at (1939): [] __irq_exit_rcu+0x103/0x1c0
[ 12.948794][ T12] ---[ end trace 0000000000000000 ]---