[ 9.578579][ T174] ------------[ cut here ]------------
[ 9.578798][ T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/174
[ 9.579032][ T174] Modules linked in:
[ 9.579205][ T174] CPU: 3 UID: 0 PID: 174 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.579540][ T174] Tainted: [W]=WARN
[ 9.579640][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.579831][ T174] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.580004][ 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
[ 9.580475][ T174] RSP: 0018:ffa0000000847aa8 EFLAGS: 00010286
[ 9.580653][ T174] RAX: 00000000ffffffa6 RBX: ff11000005e69840 RCX: 1ff4000000108f1b
[ 9.580850][ T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000005e698f0
[ 9.581048][ T174] RBP: ff110000028c1000 R08: 1fe2200000bcd31f R09: ff1100000bdfd180
[ 9.581243][ T174] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.581445][ T174] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000028c1000
[ 9.581654][ T174] FS: 00007f151e996840(0000) GS:ff11000095ef9000(0000) knlGS:0000000000000000
[ 9.581887][ T174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.582056][ T174] CR2: 0000000000479648 CR3: 000000000d126003 CR4: 0000000000771ef0
[ 9.582257][ T174] PKRU: 55555554
[ 9.582358][ T174] Call Trace:
[ 9.582477][ T174]
[ 9.582556][ T174] ? ip6_route_dev_notify+0x250/0x380
[ 9.582691][ T174] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.582823][ T174] ? notifier_call_chain+0xb0/0x320
[ 9.582959][ T174] rtmsg_ifinfo+0x5c/0xb0
[ 9.583063][ T174] register_netdevice+0x1526/0x1bc0
[ 9.583198][ T174] ? unregister_netdevice_queue+0x470/0x470
[ 9.583362][ T174] ? alloc_netdev_mqs+0xeda/0x1430
[ 9.583507][ T174] register_netdev+0x23/0x40
[ 9.583646][ T174] loopback_net_init+0x7d/0x150
[ 9.583780][ T174] ops_init+0x187/0x560
[ 9.583885][ T174] setup_net+0x11b/0x3b0
[ 9.583987][ T174] ? unregister_pernet_device+0x80/0x80
[ 9.584120][ T174] ? lockdep_init_map_type+0x5d/0x250
[ 9.584254][ T174] ? mutex_init_lockdep+0xf6/0x120
[ 9.584398][ T174] copy_net_ns+0x2fd/0x450
[ 9.584543][ T174] create_new_namespaces+0x371/0xa10
[ 9.584706][ T174] unshare_nsproxy_namespaces+0xa5/0x150
[ 9.584841][ T174] ksys_unshare+0x47e/0x8c0
[ 9.584976][ T174] ? walk_process_tree+0x350/0x350
[ 9.585109][ T174] ? __ia32_sys_open+0x1b0/0x1b0
[ 9.585245][ T174] __x64_sys_unshare+0x34/0x50
[ 9.585377][ T174] ? do_syscall_64+0x82/0xfc0
[ 9.585526][ T174] do_syscall_64+0x117/0xfc0
[ 9.585659][ T174] ? trace_hardirqs_off+0xd/0x30
[ 9.585830][ T174] ? exc_page_fault+0xee/0x100
[ 9.585962][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.586128][ T174] RIP: 0033:0x7f151ec58bcb
[ 9.586268][ 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
[ 9.586765][ T174] RSP: 002b:00007ffdb3654198 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[ 9.586967][ T174] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f151ec58bcb
[ 9.587163][ T174] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 9.587361][ T174] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 9.587575][ T174] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdb36563c0
[ 9.587773][ T174] R13: 0000000000000001 R14: 00007f151e9966f8 R15: 00007ffdb365685e
[ 9.587976][ T174]
[ 9.588076][ T174] irq event stamp: 18407
[ 9.588175][ T174] hardirqs last enabled at (18415): [] __up_console_sem+0x5a/0x70
[ 9.588407][ T174] hardirqs last disabled at (18422): [] __up_console_sem+0x3f/0x70
[ 9.588651][ T174] softirqs last enabled at (17896): [] __alloc_skb+0x4c5/0x5f0
[ 9.588881][ T174] softirqs last disabled at (17894): [] __alloc_skb+0x4c5/0x5f0
[ 9.589108][ T174] ---[ end trace 0000000000000000 ]---
[ 9.715892][ T173] ------------[ cut here ]------------
[ 9.716179][ T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: python3/173
[ 9.716636][ T173] Modules linked in: netdevsim
[ 9.716928][ T173] CPU: 2 UID: 0 PID: 173 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.717309][ T173] Tainted: [W]=WARN
[ 9.717504][ T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.717818][ T173] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.718082][ 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
[ 9.718762][ T173] RSP: 0018:ffa0000000837500 EFLAGS: 00010286
[ 9.719024][ T173] RAX: 00000000ffffffa6 RBX: ff1100000c8acc40 RCX: 1ff4000000106e66
[ 9.719319][ T173] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c8accf0
[ 9.719648][ T173] RBP: ff1100000d432000 R08: 1fe220000191599f R09: ff1100000bdfaf48
[ 9.719946][ T173] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.720242][ T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d432000
[ 9.720589][ T173] FS: 00007fc4d6a6f400(0000) GS:ff11000095e79000(0000) knlGS:0000000000000000
[ 9.720935][ T173] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.721192][ T173] CR2: 0000559bad735850 CR3: 000000000d426005 CR4: 0000000000771ef0
[ 9.721514][ T173] PKRU: 55555554
[ 9.721698][ T173] Call Trace:
[ 9.721873][ T173]
[ 9.722008][ T173] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.722227][ T173] rtmsg_ifinfo+0x5c/0xb0
[ 9.722416][ T173] register_netdevice+0x1526/0x1bc0
[ 9.722663][ T173] ? unregister_netdevice_queue+0x470/0x470
[ 9.722930][ T173] ? __debugfs_create_file+0x2cf/0x3c0
[ 9.723151][ T173] nsim_init_netdevsim+0x80e/0xcb0 [netdevsim]
[ 9.723423][ T173] nsim_create+0x45b/0x5b0 [netdevsim]
[ 9.723668][ T173] __nsim_dev_port_add+0x30b/0x7a0 [netdevsim]
[ 9.723927][ T173] ? add_timer_on+0x580/0x580
[ 9.724143][ T173] ? nsim_dev_get_vfs+0x90/0x90 [netdevsim]
[ 9.724411][ T173] ? is_module_address+0x68/0x110
[ 9.724656][ T173] ? static_obj+0x5d/0x90
[ 9.724831][ T173] ? mark_held_locks+0x40/0x70
[ 9.725049][ T173] ? nsim_dev_hwstats_init+0x3a4/0x4d0 [netdevsim]
[ 9.725307][ T173] nsim_drv_probe+0x59e/0x8d0 [netdevsim]
[ 9.725549][ T173] call_driver_probe+0x61/0x1c0
[ 9.725784][ T173] really_probe+0x199/0x760
[ 9.726000][ T173] ? driver_probe_device+0x130/0x130
[ 9.726216][ T173] __driver_probe_device+0x1dc/0x430
[ 9.726440][ T173] driver_probe_device+0x4a/0x130
[ 9.726677][ T173] __device_attach_driver+0x16d/0x2a0
[ 9.726893][ T173] bus_for_each_drv+0x135/0x1e0
[ 9.727107][ T173] ? bus_find_device_reverse+0x1c0/0x1c0
[ 9.727324][ T173] __device_attach+0x1a6/0x410
[ 9.727568][ T173] ? __rwlock_init+0x150/0x150
[ 9.727786][ T173] ? __driver_attach_async_helper+0x2a0/0x2a0
[ 9.728040][ T173] ? do_raw_spin_unlock+0x59/0x250
[ 9.728255][ T173] ? _raw_spin_unlock+0x2d/0x50
[ 9.728480][ T173] device_initial_probe+0x8b/0xc0
[ 9.728717][ T173] bus_probe_device+0x63/0x160
[ 9.728933][ T173] device_add+0xb16/0x1130
[ 9.729147][ T173] ? __fw_devlink_link_to_consumers.isra.0+0x2d0/0x2d0
[ 9.729414][ T173] ? __init_waitqueue_head+0xcb/0x160
[ 9.729655][ T173] ? pm_runtime_init+0x323/0x3f0
[ 9.729872][ T173] new_device_store+0x3d4/0x730 [netdevsim]
[ 9.730128][ T173] ? __lock_release.isra.0+0x6b/0x1a0
[ 9.730342][ T173] ? new_port_store+0x1a0/0x1a0 [netdevsim]
[ 9.730631][ T173] ? sysfs_file_kobj+0xb3/0x1e0
[ 9.730851][ T173] ? sysfs_file_kobj+0xbd/0x1e0
[ 9.731069][ T173] ? sysfs_file_ops+0x140/0x140
[ 9.731281][ T173] kernfs_fop_write_iter+0x335/0x510
[ 9.731524][ T173] ? kernfs_ops+0xf0/0xf0
[ 9.731705][ T173] new_sync_write+0x333/0x750
[ 9.731923][ T173] ? __lock_acquire+0x508/0xc10
[ 9.732139][ T173] ? new_sync_read+0x740/0x740
[ 9.732355][ T173] ? lock_acquire.part.0+0xbc/0x260
[ 9.732605][ T173] ? ksys_write+0x116/0x250
[ 9.732825][ T173] vfs_write+0x6a4/0xc10
[ 9.733002][ T173] ksys_write+0x116/0x250
[ 9.733177][ T173] ? __ia32_sys_read+0xc0/0xc0
[ 9.733400][ T173] ? kernfs_fop_llseek+0x160/0x1f0
[ 9.733660][ T173] ? rcu_is_watching+0x15/0xd0
[ 9.733878][ T173] do_syscall_64+0x117/0xfc0
[ 9.734094][ T173] ? irq_exit_rcu+0x1a/0x30
[ 9.734314][ T173] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.734599][ T173] RIP: 0033:0x7fc4d6bf708e
[ 9.734820][ 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
[ 9.735469][ T173] RSP: 002b:00007ffde1e8a9b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9.735797][ T173] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007fc4d6bf708e
[ 9.736093][ T173] RDX: 0000000000000008 RSI: 000055e2dd56b0a0 RDI: 0000000000000006
[ 9.736398][ T173] RBP: 00007ffde1e8a9c0 R08: 0000000000000000 R09: 0000000000000000
[ 9.736717][ T173] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fc4d6a6f390
[ 9.737014][ T173] R13: 000055e2dd56b0a0 R14: 0000000000000006 R15: 00007fc4d69fd0d0
[ 9.737317][ T173]
[ 9.737511][ T173] irq event stamp: 362871
[ 9.737693][ T173] hardirqs last enabled at (362881): [] __up_console_sem+0x5a/0x70
[ 9.738028][ T173] hardirqs last disabled at (362890): [] __up_console_sem+0x3f/0x70
[ 9.738369][ T173] softirqs last enabled at (361930): [] __alloc_skb+0x4c5/0x5f0
[ 9.738742][ T173] softirqs last disabled at (361928): [] __alloc_skb+0x4c5/0x5f0
[ 9.739075][ T173] ---[ end trace 0000000000000000 ]---
[ 10.312315][ T12] ------------[ cut here ]------------
[ 10.312646][ T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: kworker/u16:0/12
[ 10.312901][ T12] Modules linked in: netdevsim
[ 10.313095][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 10.313374][ T12] Tainted: [W]=WARN
[ 10.313471][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.313670][ T12] Workqueue: netns cleanup_net
[ 10.313811][ T12] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 10.313975][ 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
[ 10.314415][ T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[ 10.314583][ T12] RAX: 00000000ffffffa6 RBX: ff1100000abddcc0 RCX: 1ff4000000018ed5
[ 10.314769][ T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000abddd70
[ 10.314954][ T12] RBP: ff110000028c1000 R08: 1fe220000157bbaf R09: ff11000001b051d0
[ 10.315139][ T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 10.315323][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 10.315528][ T12] FS: 0000000000000000(0000) GS:ff11000095d79000(0000) knlGS:0000000000000000
[ 10.315744][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 10.315904][ T12] CR2: 00007fecb67398f4 CR3: 000000000d426001 CR4: 0000000000771ef0
[ 10.316091][ T12] PKRU: 55555554
[ 10.316185][ T12] Call Trace:
[ 10.316277][ T12]
[ 10.316342][ T12] unregister_netdevice_many_notify+0xce3/0x1b30
[ 10.316510][ T12] ? unregister_netdevice_queued+0x80/0x80
[ 10.316668][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.316800][ T12] default_device_exit_batch+0x38b/0x600
[ 10.316927][ T12] ? unregister_netdev+0x60/0x60
[ 10.317051][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.317174][ T12] ops_undo_list+0x2ce/0x8f0
[ 10.317300][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 10.317426][ T12] ? __lock_release.isra.0+0x6b/0x1a0
[ 10.317562][ T12] cleanup_net+0x431/0x890
[ 10.317686][ T12] ? net_passive_dec+0x1c0/0x1c0
[ 10.317812][ T12] ? process_one_work+0xdb7/0x1410
[ 10.317940][ T12] ? lock_acquire+0x134/0x160
[ 10.318063][ T12] ? rcu_is_watching+0x15/0xd0
[ 10.318187][ T12] process_one_work+0xdf8/0x1410
[ 10.318315][ T12] ? pwq_dec_nr_in_flight+0x710/0x710
[ 10.318445][ T12] ? lock_acquire.part.0+0xbc/0x260
[ 10.318590][ T12] worker_thread+0x4f1/0xd60
[ 10.318717][ T12] ? rescuer_thread+0x1320/0x1320
[ 10.318838][ T12] kthread+0x367/0x460
[ 10.318935][ T12] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 10.319089][ T12] ? kthread_affine_node+0x330/0x330
[ 10.319211][ T12] ret_from_fork+0x474/0x6b0
[ 10.319349][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 10.319517][ T12] ? __switch_to+0x5a3/0xe00
[ 10.319664][ T12] ? kthread_affine_node+0x330/0x330
[ 10.319786][ T12] ret_from_fork_asm+0x11/0x20
[ 10.319915][ T12]
[ 10.320008][ T12] irq event stamp: 8167
[ 10.320101][ T12] hardirqs last enabled at (8175): [] __up_console_sem+0x5a/0x70
[ 10.320316][ T12] hardirqs last disabled at (8182): [] __up_console_sem+0x3f/0x70
[ 10.320583][ T12] softirqs last enabled at (7704): [] __alloc_skb+0x4c5/0x5f0
[ 10.320798][ T12] softirqs last disabled at (7702): [] __alloc_skb+0x4c5/0x5f0
[ 10.321012][ T12] ---[ end trace 0000000000000000 ]---