[ 9.565704][ T174] ------------[ cut here ]------------
[ 9.565916][ T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/174
[ 9.566197][ T174] Modules linked in:
[ 9.566418][ T174] CPU: 0 UID: 0 PID: 174 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.566699][ T174] Tainted: [W]=WARN
[ 9.566801][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.566994][ T174] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.567177][ 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
[ 9.567717][ T174] RSP: 0018:ffa0000000897aa8 EFLAGS: 00010286
[ 9.567886][ T174] RAX: 00000000ffffffa6 RBX: ff1100000cec5540 RCX: 1ff4000000112f1b
[ 9.568091][ T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000cec55f0
[ 9.568293][ T174] RBP: ff1100000a184000 R08: 1fe22000019d8abf R09: ff1100000d65d180
[ 9.568506][ T174] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.568705][ T174] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a184000
[ 9.568930][ T174] FS: 00007f53713c4840(0000) GS:ff11000087179000(0000) knlGS:0000000000000000
[ 9.569171][ T174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.569348][ T174] CR2: 0000000000479648 CR3: 000000000a198004 CR4: 0000000000771ef0
[ 9.569553][ T174] PKRU: 55555554
[ 9.569653][ T174] Call Trace:
[ 9.569755][ T174]
[ 9.569825][ T174] ? ip6_route_dev_notify+0x250/0x380
[ 9.569962][ T174] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.570102][ T174] ? notifier_call_chain+0xb0/0x320
[ 9.570237][ T174] rtmsg_ifinfo+0x5c/0xb0
[ 9.570347][ T174] register_netdevice+0x1526/0x1bc0
[ 9.570487][ T174] ? unregister_netdevice_queue+0x470/0x470
[ 9.570653][ T174] ? alloc_netdev_mqs+0xeda/0x1430
[ 9.570789][ T174] register_netdev+0x23/0x40
[ 9.570922][ T174] loopback_net_init+0x7d/0x150
[ 9.571065][ T174] ops_init+0x187/0x560
[ 9.571183][ T174] setup_net+0x11b/0x3b0
[ 9.571309][ T174] ? unregister_pernet_device+0x80/0x80
[ 9.571450][ T174] ? lockdep_init_map_type+0x5d/0x250
[ 9.571586][ T174] ? mutex_init_lockdep+0xf6/0x120
[ 9.571722][ T174] copy_net_ns+0x2fd/0x450
[ 9.571857][ T174] create_new_namespaces+0x371/0xa10
[ 9.571996][ T174] unshare_nsproxy_namespaces+0xa5/0x150
[ 9.572138][ T174] ksys_unshare+0x47e/0x8c0
[ 9.572276][ T174] ? walk_process_tree+0x350/0x350
[ 9.572420][ T174] ? __ia32_sys_open+0x1b0/0x1b0
[ 9.572560][ T174] __x64_sys_unshare+0x34/0x50
[ 9.572693][ T174] ? do_syscall_64+0x82/0xfc0
[ 9.572829][ T174] do_syscall_64+0x117/0xfc0
[ 9.572961][ T174] ? trace_hardirqs_off+0xd/0x30
[ 9.573123][ T174] ? exc_page_fault+0xee/0x100
[ 9.573257][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.573437][ T174] RIP: 0033:0x7f5371686bcb
[ 9.573578][ 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
[ 9.574076][ T174] RSP: 002b:00007ffe7a85de88 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[ 9.574281][ T174] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f5371686bcb
[ 9.574488][ T174] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 9.574688][ T174] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 9.574886][ T174] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe7a8600b0
[ 9.575094][ T174] R13: 0000000000000001 R14: 00007f53713c46f8 R15: 00007ffe7a86086a
[ 9.575343][ T174]
[ 9.575450][ T174] irq event stamp: 19229
[ 9.575551][ T174] hardirqs last enabled at (19237): [] __up_console_sem+0x5a/0x70
[ 9.575783][ T174] hardirqs last disabled at (19244): [] __up_console_sem+0x3f/0x70
[ 9.576019][ T174] softirqs last enabled at (18720): [] __alloc_skb+0x4c5/0x5f0
[ 9.576250][ T174] softirqs last disabled at (18718): [] __alloc_skb+0x4c5/0x5f0
[ 9.576492][ T174] ---[ end trace 0000000000000000 ]---
[ 9.693890][ T173] ------------[ cut here ]------------
[ 9.694146][ T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: python3/173
[ 9.694546][ T173] Modules linked in: netdevsim
[ 9.694776][ T173] CPU: 3 UID: 0 PID: 173 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.695121][ T173] Tainted: [W]=WARN
[ 9.695249][ T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.695477][ T173] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.695696][ 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
[ 9.696346][ T173] RSP: 0018:ffa0000000887500 EFLAGS: 00010286
[ 9.696563][ T173] RAX: 00000000ffffffa6 RBX: ff1100000cecbcc0 RCX: 1ff4000000110e66
[ 9.696822][ T173] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000cecbd70
[ 9.697079][ T173] RBP: ff1100000cf52000 R08: 1fe22000019d97af R09: ff1100000d65af48
[ 9.697338][ T173] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.697596][ T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000cf52000
[ 9.697852][ T173] FS: 00007fa197971400(0000) GS:ff110000872f9000(0000) knlGS:0000000000000000
[ 9.698155][ T173] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.698381][ T173] CR2: 00007fa197d720a1 CR3: 000000000ecb5006 CR4: 0000000000771ef0
[ 9.698635][ T173] PKRU: 55555554
[ 9.698761][ T173] Call Trace:
[ 9.698887][ T173]
[ 9.698975][ T173] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.699156][ T173] rtmsg_ifinfo+0x5c/0xb0
[ 9.699287][ T173] register_netdevice+0x1526/0x1bc0
[ 9.699471][ T173] ? unregister_netdevice_queue+0x470/0x470
[ 9.699681][ T173] ? __debugfs_create_file+0x2cf/0x3c0
[ 9.699855][ T173] nsim_init_netdevsim+0x80e/0xcb0 [netdevsim]
[ 9.700079][ T173] nsim_create+0x45b/0x5b0 [netdevsim]
[ 9.700252][ T173] __nsim_dev_port_add+0x30b/0x7a0 [netdevsim]
[ 9.700489][ T173] ? add_timer_on+0x580/0x580
[ 9.700661][ T173] ? nsim_dev_get_vfs+0x90/0x90 [netdevsim]
[ 9.700873][ T173] ? is_module_address+0x68/0x110
[ 9.701059][ T173] ? static_obj+0x5d/0x90
[ 9.701189][ T173] ? mark_held_locks+0x40/0x70
[ 9.701363][ T173] ? nsim_dev_hwstats_init+0x3a4/0x4d0 [netdevsim]
[ 9.701580][ T173] nsim_drv_probe+0x59e/0x8d0 [netdevsim]
[ 9.701753][ T173] call_driver_probe+0x61/0x1c0
[ 9.701923][ T173] really_probe+0x199/0x760
[ 9.702097][ T173] ? driver_probe_device+0x130/0x130
[ 9.702266][ T173] __driver_probe_device+0x1dc/0x430
[ 9.702444][ T173] driver_probe_device+0x4a/0x130
[ 9.702612][ T173] __device_attach_driver+0x16d/0x2a0
[ 9.702780][ T173] bus_for_each_drv+0x135/0x1e0
[ 9.702948][ T173] ? bus_find_device_reverse+0x1c0/0x1c0
[ 9.703124][ T173] __device_attach+0x1a6/0x410
[ 9.703295][ T173] ? __rwlock_init+0x150/0x150
[ 9.703488][ T173] ? __driver_attach_async_helper+0x2a0/0x2a0
[ 9.703699][ T173] ? do_raw_spin_unlock+0x59/0x250
[ 9.704243][ T173] ? _raw_spin_unlock+0x2d/0x50
[ 9.704424][ T173] device_initial_probe+0x8b/0xc0
[ 9.704593][ T173] bus_probe_device+0x63/0x160
[ 9.704760][ T173] device_add+0xb16/0x1130
[ 9.704928][ T173] ? __fw_devlink_link_to_consumers.isra.0+0x2d0/0x2d0
[ 9.705143][ T173] ? __init_waitqueue_head+0xcb/0x160
[ 9.705316][ T173] ? pm_runtime_init+0x323/0x3f0
[ 9.705491][ T173] new_device_store+0x3d4/0x730 [netdevsim]
[ 9.705701][ T173] ? __lock_release.isra.0+0x6b/0x1a0
[ 9.705867][ T173] ? new_port_store+0x1a0/0x1a0 [netdevsim]
[ 9.706082][ T173] ? sysfs_file_kobj+0xb3/0x1e0
[ 9.706253][ T173] ? sysfs_file_kobj+0xbd/0x1e0
[ 9.706432][ T173] ? sysfs_file_ops+0x140/0x140
[ 9.706600][ T173] kernfs_fop_write_iter+0x335/0x510
[ 9.706766][ T173] ? kernfs_ops+0xf0/0xf0
[ 9.706893][ T173] new_sync_write+0x333/0x750
[ 9.707069][ T173] ? __lock_acquire+0x508/0xc10
[ 9.707237][ T173] ? new_sync_read+0x740/0x740
[ 9.707413][ T173] ? lock_acquire.part.0+0xbc/0x260
[ 9.707582][ T173] ? ksys_write+0x116/0x250
[ 9.707755][ T173] vfs_write+0x6a4/0xc10
[ 9.707882][ T173] ksys_write+0x116/0x250
[ 9.708010][ T173] ? __ia32_sys_read+0xc0/0xc0
[ 9.708184][ T173] ? kernfs_fop_llseek+0x160/0x1f0
[ 9.708356][ T173] ? rcu_is_watching+0x15/0xd0
[ 9.708533][ T173] do_syscall_64+0x117/0xfc0
[ 9.708711][ T173] ? trace_hardirqs_off+0xd/0x30
[ 9.708879][ T173] ? exc_page_fault+0xee/0x100
[ 9.709051][ T173] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.709257][ T173] RIP: 0033:0x7fa197af908e
[ 9.709439][ 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
[ 9.710034][ T173] RSP: 002b:00007ffeb17f3350 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9.710285][ T173] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007fa197af908e
[ 9.710542][ T173] RDX: 0000000000000009 RSI: 000055a61a89e640 RDI: 0000000000000006
[ 9.710790][ T173] RBP: 00007ffeb17f3360 R08: 0000000000000000 R09: 0000000000000000
[ 9.711052][ T173] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fa197971390
[ 9.711306][ T173] R13: 000055a61a89e640 R14: 0000000000000006 R15: 00007fa1978fd0d0
[ 9.711562][ T173]
[ 9.711687][ T173] irq event stamp: 334663
[ 9.711813][ T173] hardirqs last enabled at (334671): [] __up_console_sem+0x5a/0x70
[ 9.712109][ T173] hardirqs last disabled at (334678): [] __up_console_sem+0x3f/0x70
[ 9.712407][ T173] softirqs last enabled at (334176): [] handle_softirqs+0x611/0x940
[ 9.712697][ T173] softirqs last disabled at (334151): [] __irq_exit_rcu+0x103/0x1c0
[ 9.712985][ T173] ---[ end trace 0000000000000000 ]---
[ 10.196284][ T67] ------------[ cut here ]------------
[ 10.196579][ T67] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: kworker/u16:1/67
[ 10.196835][ T67] Modules linked in: netdevsim
[ 10.197001][ T67] CPU: 3 UID: 0 PID: 67 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 10.197315][ T67] Tainted: [W]=WARN
[ 10.197422][ T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.197579][ T67] Workqueue: netns cleanup_net
[ 10.197749][ T67] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 10.197917][ T67] 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
[ 10.198449][ T67] RSP: 0018:ffa0000000487878 EFLAGS: 00010286
[ 10.198621][ T67] RAX: 00000000ffffffa6 RBX: ff1100000b30b0c0 RCX: 1ff4000000090ed5
[ 10.198809][ T67] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b30b170
[ 10.198995][ T67] RBP: ff1100000a184000 R08: 1fe220000166162f R09: ff11000008e20bd0
[ 10.199186][ T67] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 10.199445][ T67] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 10.199636][ T67] FS: 0000000000000000(0000) GS:ff110000872f9000(0000) knlGS:0000000000000000
[ 10.199852][ T67] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 10.200012][ T67] CR2: 00007fa195ea08f4 CR3: 000000002eb39003 CR4: 0000000000771ef0
[ 10.200219][ T67] PKRU: 55555554
[ 10.200382][ T67] Call Trace:
[ 10.200478][ T67]
[ 10.200544][ T67] unregister_netdevice_many_notify+0xce3/0x1b30
[ 10.200705][ T67] ? unregister_netdevice_queued+0x80/0x80
[ 10.200863][ T67] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.200997][ T67] default_device_exit_batch+0x38b/0x600
[ 10.201126][ T67] ? unregister_netdev+0x60/0x60
[ 10.201251][ T67] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.201462][ T67] ops_undo_list+0x2ce/0x8f0
[ 10.201590][ T67] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 10.201713][ T67] ? __lock_release.isra.0+0x6b/0x1a0
[ 10.201840][ T67] cleanup_net+0x431/0x890
[ 10.201966][ T67] ? net_passive_dec+0x1c0/0x1c0
[ 10.202094][ T67] ? process_one_work+0xdb7/0x1410
[ 10.202221][ T67] ? lock_acquire+0x134/0x160
[ 10.202416][ T67] ? rcu_is_watching+0x15/0xd0
[ 10.202542][ T67] process_one_work+0xdf8/0x1410
[ 10.202669][ T67] ? pwq_dec_nr_in_flight+0x710/0x710
[ 10.202791][ T67] ? lock_acquire.part.0+0xbc/0x260
[ 10.202921][ T67] worker_thread+0x4f1/0xd60
[ 10.203060][ T67] ? rescuer_thread+0x1320/0x1320
[ 10.203184][ T67] ? __kthread_parkme+0xbd/0x210
[ 10.203359][ T67] ? rescuer_thread+0x1320/0x1320
[ 10.203500][ T67] kthread+0x367/0x460
[ 10.203592][ T67] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 10.203746][ T67] ? kthread_affine_node+0x330/0x330
[ 10.203870][ T67] ret_from_fork+0x474/0x6b0
[ 10.204009][ T67] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 10.204168][ T67] ? __switch_to+0x5a3/0xe00
[ 10.204291][ T67] ? kthread_affine_node+0x330/0x330
[ 10.204423][ T67] ret_from_fork_asm+0x11/0x20
[ 10.204555][ T67]
[ 10.204649][ T67] irq event stamp: 3385
[ 10.204742][ T67] hardirqs last enabled at (3393): [] __up_console_sem+0x5a/0x70
[ 10.204986][ T67] hardirqs last disabled at (3400): [] __up_console_sem+0x3f/0x70
[ 10.205208][ T67] softirqs last enabled at (3330): [] handle_softirqs+0x611/0x940
[ 10.205573][ T67] softirqs last disabled at (3417): [] __irq_exit_rcu+0x103/0x1c0
[ 10.205793][ T67] ---[ end trace 0000000000000000 ]---