[ 11.342523][ T175] ------------[ cut here ]------------
[ 11.342850][ T175] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/175
[ 11.343293][ T175] Modules linked in:
[ 11.343503][ T175] CPU: 3 UID: 0 PID: 175 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 11.343942][ T175] Tainted: [W]=WARN
[ 11.344106][ T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.344381][ T175] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 11.344683][ T175] 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
[ 11.345560][ T175] RSP: 0018:ffa0000000837aa8 EFLAGS: 00010286
[ 11.345830][ T175] RAX: 00000000ffffffa6 RBX: ff1100000948c040 RCX: 1ff4000000106f1b
[ 11.346157][ T175] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000948c0f0
[ 11.346478][ T175] RBP: ff110000089d1000 R08: 1fe220000129181f R09: ff1100000c768b80
[ 11.346798][ T175] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 11.347124][ T175] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000089d1000
[ 11.347442][ T175] FS: 00007f799d6e2840(0000) GS:ff110000786f9000(0000) knlGS:0000000000000000
[ 11.347824][ T175] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 11.348100][ T175] CR2: 0000000000479648 CR3: 0000000004cad004 CR4: 0000000000771ef0
[ 11.348408][ T175] PKRU: 55555554
[ 11.348568][ T175] Call Trace:
[ 11.348726][ T175]
[ 11.348836][ T175] ? ip6_route_dev_notify+0x250/0x380
[ 11.349066][ T175] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 11.349282][ T175] ? notifier_call_chain+0xb0/0x320
[ 11.349490][ T175] rtmsg_ifinfo+0x5c/0xb0
[ 11.349652][ T175] register_netdevice+0x1526/0x1bc0
[ 11.349869][ T175] ? unregister_netdevice_queue+0x470/0x470
[ 11.350149][ T175] ? alloc_netdev_mqs+0xeda/0x1430
[ 11.350370][ T175] register_netdev+0x23/0x40
[ 11.350585][ T175] loopback_net_init+0x7d/0x150
[ 11.350797][ T175] ops_init+0x187/0x560
[ 11.350965][ T175] setup_net+0x11b/0x3b0
[ 11.351128][ T175] ? unregister_pernet_device+0x80/0x80
[ 11.351344][ T175] ? lockdep_init_map_type+0x5d/0x250
[ 11.351555][ T175] ? mutex_init_lockdep+0xf6/0x120
[ 11.351764][ T175] copy_net_ns+0x2fd/0x450
[ 11.351996][ T175] create_new_namespaces+0x371/0xa10
[ 11.352220][ T175] unshare_nsproxy_namespaces+0xa5/0x150
[ 11.352434][ T175] ksys_unshare+0x47e/0x8c0
[ 11.352647][ T175] ? walk_process_tree+0x350/0x350
[ 11.352858][ T175] ? __ia32_sys_open+0x1b0/0x1b0
[ 11.353084][ T175] __x64_sys_unshare+0x34/0x50
[ 11.353301][ T175] ? do_syscall_64+0x82/0xfc0
[ 11.353516][ T175] do_syscall_64+0x117/0xfc0
[ 11.353727][ T175] ? trace_hardirqs_off+0xd/0x30
[ 11.353950][ T175] ? exc_page_fault+0xee/0x100
[ 11.354172][ T175] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 11.354434][ T175] RIP: 0033:0x7f799d9a4bcb
[ 11.354649][ T175] 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
[ 11.355423][ T175] RSP: 002b:00007ffdf08f6168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[ 11.355741][ T175] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f799d9a4bcb
[ 11.356066][ T175] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 11.356382][ T175] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 11.356704][ T175] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdf08f8390
[ 11.357052][ T175] R13: 0000000000000001 R14: 00007f799d6e26f8 R15: 00007ffdf08f8856
[ 11.357385][ T175]
[ 11.357544][ T175] irq event stamp: 30395
[ 11.357707][ T175] hardirqs last enabled at (30403): [] __up_console_sem+0x5a/0x70
[ 11.358090][ T175] hardirqs last disabled at (30412): [] __up_console_sem+0x3f/0x70
[ 11.358464][ T175] softirqs last enabled at (29876): [] __alloc_skb+0x4c5/0x5f0
[ 11.358834][ T175] softirqs last disabled at (29874): [] __alloc_skb+0x4c5/0x5f0
[ 11.359217][ T175] ---[ end trace 0000000000000000 ]---
[ 11.563018][ T174] ------------[ cut here ]------------
[ 11.563478][ T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: python3/174
[ 11.564055][ T174] Modules linked in: netdevsim
[ 11.564405][ T174] CPU: 3 UID: 0 PID: 174 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 11.565023][ T174] Tainted: [W]=WARN
[ 11.565234][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.565578][ T174] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 11.565948][ 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
[ 11.566994][ T174] RSP: 0018:ffa0000000507500 EFLAGS: 00010286
[ 11.567340][ T174] RAX: 00000000ffffffa6 RBX: ff1100000282f6c0 RCX: 1ff40000000a0e66
[ 11.567746][ T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000282f770
[ 11.568163][ T174] RBP: ff1100000cd52000 R08: 1fe2200000505eef R09: ff1100000be5d248
[ 11.568559][ T174] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 11.568973][ T174] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000cd52000
[ 11.569389][ T174] FS: 00007f42008b9400(0000) GS:ff110000786f9000(0000) knlGS:0000000000000000
[ 11.569865][ T174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 11.570228][ T174] CR2: 000055cd217fbc40 CR3: 000000000e4d0005 CR4: 0000000000771ef0
[ 11.570665][ T174] PKRU: 55555554
[ 11.570867][ T174] Call Trace:
[ 11.571081][ T174]
[ 11.571234][ T174] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 11.571515][ T174] rtmsg_ifinfo+0x5c/0xb0
[ 11.571721][ T174] register_netdevice+0x1526/0x1bc0
[ 11.572002][ T174] ? unregister_netdevice_queue+0x470/0x470
[ 11.572343][ T174] ? __debugfs_create_file+0x2cf/0x3c0
[ 11.572630][ T174] nsim_init_netdevsim+0x80e/0xcb0 [netdevsim]
[ 11.572986][ T174] nsim_create+0x45b/0x5b0 [netdevsim]
[ 11.573263][ T174] __nsim_dev_port_add+0x30b/0x7a0 [netdevsim]
[ 11.573599][ T174] ? add_timer_on+0x580/0x580
[ 11.573919][ T174] ? nsim_dev_get_vfs+0x90/0x90 [netdevsim]
[ 11.574266][ T174] ? is_module_address+0x68/0x110
[ 11.574541][ T174] ? static_obj+0x5d/0x90
[ 11.574746][ T174] ? mark_held_locks+0x40/0x70
[ 11.575030][ T174] ? nsim_dev_hwstats_init+0x3a4/0x4d0 [netdevsim]
[ 11.575378][ T174] nsim_drv_probe+0x59e/0x8d0 [netdevsim]
[ 11.575658][ T174] call_driver_probe+0x61/0x1c0
[ 11.575949][ T174] really_probe+0x199/0x760
[ 11.576236][ T174] ? driver_probe_device+0x130/0x130
[ 11.576523][ T174] __driver_probe_device+0x1dc/0x430
[ 11.576796][ T174] driver_probe_device+0x4a/0x130
[ 11.577077][ T174] __device_attach_driver+0x16d/0x2a0
[ 11.577359][ T174] bus_for_each_drv+0x135/0x1e0
[ 11.577636][ T174] ? bus_find_device_reverse+0x1c0/0x1c0
[ 11.577928][ T174] __device_attach+0x1a6/0x410
[ 11.578214][ T174] ? __rwlock_init+0x150/0x150
[ 11.578484][ T174] ? __driver_attach_async_helper+0x2a0/0x2a0
[ 11.578835][ T174] ? do_raw_spin_unlock+0x59/0x250
[ 11.579113][ T174] ? _raw_spin_unlock+0x2d/0x50
[ 11.579389][ T174] device_initial_probe+0x8b/0xc0
[ 11.579665][ T174] bus_probe_device+0x63/0x160
[ 11.579958][ T174] device_add+0xb16/0x1130
[ 11.580239][ T174] ? __fw_devlink_link_to_consumers.isra.0+0x2d0/0x2d0
[ 11.580584][ T174] ? __init_waitqueue_head+0xcb/0x160
[ 11.580863][ T174] ? pm_runtime_init+0x323/0x3f0
[ 11.581160][ T174] new_device_store+0x3d4/0x730 [netdevsim]
[ 11.581498][ T174] ? __lock_release.isra.0+0x6b/0x1a0
[ 11.581765][ T174] ? new_port_store+0x1a0/0x1a0 [netdevsim]
[ 11.582110][ T174] ? sysfs_file_kobj+0xb3/0x1e0
[ 11.582390][ T174] ? sysfs_file_kobj+0xbd/0x1e0
[ 11.582658][ T174] ? sysfs_file_ops+0x140/0x140
[ 11.582945][ T174] kernfs_fop_write_iter+0x335/0x510
[ 11.583221][ T174] ? kernfs_ops+0xf0/0xf0
[ 11.583426][ T174] new_sync_write+0x333/0x750
[ 11.583700][ T174] ? __lock_acquire+0x508/0xc10
[ 11.583980][ T174] ? new_sync_read+0x740/0x740
[ 11.584250][ T174] ? lock_acquire.part.0+0xbc/0x260
[ 11.584516][ T174] ? ksys_write+0x116/0x250
[ 11.584802][ T174] vfs_write+0x6a4/0xc10
[ 11.585032][ T174] ksys_write+0x116/0x250
[ 11.585246][ T174] ? __ia32_sys_read+0xc0/0xc0
[ 11.585518][ T174] ? kernfs_fop_llseek+0x160/0x1f0
[ 11.585791][ T174] ? rcu_is_watching+0x15/0xd0
[ 11.586077][ T174] do_syscall_64+0x117/0xfc0
[ 11.586352][ T174] ? irq_exit_rcu+0x1a/0x30
[ 11.586626][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 11.586973][ T174] RIP: 0033:0x7f4200a4108e
[ 11.587261][ T174] 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
[ 11.588261][ T174] RSP: 002b:00007ffd0f17f550 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 11.588672][ T174] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f4200a4108e
[ 11.589083][ T174] RDX: 0000000000000009 RSI: 000055f6b7c798b0 RDI: 0000000000000006
[ 11.589493][ T174] RBP: 00007ffd0f17f560 R08: 0000000000000000 R09: 0000000000000000
[ 11.589902][ T174] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f42008b9390
[ 11.590309][ T174] R13: 000055f6b7c798b0 R14: 0000000000000006 R15: 00007f42008450d0
[ 11.590730][ T174]
[ 11.590944][ T174] irq event stamp: 348727
[ 11.591146][ T174] hardirqs last enabled at (348735): [] __up_console_sem+0x5a/0x70
[ 11.591615][ T174] hardirqs last disabled at (348742): [] __up_console_sem+0x3f/0x70
[ 11.592085][ T174] softirqs last enabled at (348424): [] handle_softirqs+0x611/0x940
[ 11.592559][ T174] softirqs last disabled at (348419): [] __irq_exit_rcu+0x103/0x1c0
[ 11.593033][ T174] ---[ end trace 0000000000000000 ]---
[ 12.163457][ T68] ------------[ cut here ]------------
[ 12.163792][ T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: kworker/u16:1/68
[ 12.164193][ T68] Modules linked in: netdevsim
[ 12.164441][ T68] CPU: 2 UID: 0 PID: 68 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 12.164834][ T68] Tainted: [W]=WARN
[ 12.165010][ T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.165229][ T68] Workqueue: netns cleanup_net
[ 12.165442][ T68] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 12.165675][ T68] 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
[ 12.166228][ T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[ 12.166442][ T68] RAX: 00000000ffffffa6 RBX: ff110000051699c0 RCX: 1ff4000000092ed5
[ 12.166697][ T68] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000005169a70
[ 12.167077][ T68] RBP: ff110000089d1000 R08: 1fe2200000a2d34f R09: ff11000008bfaed0
[ 12.167331][ T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[ 12.167591][ T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 12.167848][ T68] FS: 0000000000000000(0000) GS:ff11000078679000(0000) knlGS:0000000000000000
[ 12.168156][ T68] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 12.168375][ T68] CR2: 00007f4200c9f8ce CR3: 000000000e4d0005 CR4: 0000000000771ef0
[ 12.168630][ T68] PKRU: 55555554
[ 12.168785][ T68] Call Trace:
[ 12.168943][ T68]
[ 12.169066][ T68] unregister_netdevice_many_notify+0xce3/0x1b30
[ 12.169294][ T68] ? unregister_netdevice_queued+0x80/0x80
[ 12.169532][ T68] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 12.169734][ T68] default_device_exit_batch+0x38b/0x600
[ 12.169943][ T68] ? unregister_netdev+0x60/0x60
[ 12.170144][ T68] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 12.170349][ T68] ops_undo_list+0x2ce/0x8f0
[ 12.170542][ T68] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 12.170749][ T68] cleanup_net+0x431/0x890
[ 12.170941][ T68] ? net_passive_dec+0x1c0/0x1c0
[ 12.171125][ T68] ? process_one_work+0xdb7/0x1410
[ 12.171324][ T68] ? lock_acquire+0x134/0x160
[ 12.171504][ T68] ? rcu_is_watching+0x15/0xd0
[ 12.171721][ T68] process_one_work+0xdf8/0x1410
[ 12.171939][ T68] ? pwq_dec_nr_in_flight+0x710/0x710
[ 12.172135][ T68] ? lock_acquire.part.0+0xbc/0x260
[ 12.172342][ T68] worker_thread+0x4f1/0xd60
[ 12.172518][ T68] ? rescuer_thread+0x1320/0x1320
[ 12.172709][ T68] ? __kthread_parkme+0xbd/0x210
[ 12.172904][ T68] ? rescuer_thread+0x1320/0x1320
[ 12.173086][ T68] kthread+0x367/0x460
[ 12.173244][ T68] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 12.173463][ T68] ? kthread_affine_node+0x330/0x330
[ 12.173658][ T68] ret_from_fork+0x474/0x6b0
[ 12.173833][ T68] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 12.174066][ T68] ? __switch_to+0x5a3/0xe00
[ 12.174251][ T68] ? kthread_affine_node+0x330/0x330
[ 12.174454][ T68] ret_from_fork_asm+0x11/0x20
[ 12.174643][ T68]
[ 12.174801][ T68] irq event stamp: 2463
[ 12.174968][ T68] hardirqs last enabled at (2475): [] __up_console_sem+0x5a/0x70
[ 12.175257][ T68] hardirqs last disabled at (2484): [] __up_console_sem+0x3f/0x70
[ 12.175531][ T68] softirqs last enabled at (2064): [] handle_softirqs+0x611/0x940
[ 12.175821][ T68] softirqs last disabled at (2013): [] __irq_exit_rcu+0x103/0x1c0
[ 12.176101][ T68] ---[ end trace 0000000000000000 ]---