[ 12.056270][ T175] ------------[ cut here ]------------
[ 12.056726][ T175] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/175
[ 12.057169][ T175] Modules linked in:
[ 12.057427][ T175] CPU: 2 UID: 0 PID: 175 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 12.057943][ T175] Tainted: [W]=WARN
[ 12.058158][ T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.058472][ T175] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 12.058830][ 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
[ 12.059648][ T175] RSP: 0018:ffa00000008e7aa8 EFLAGS: 00010286
[ 12.059979][ T175] RAX: 00000000ffffffa6 RBX: ff11000011063b40 RCX: 1ff400000011cf1b
[ 12.060349][ T175] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000011063bf0
[ 12.060753][ T175] RBP: ff1100000f5f9000 R08: 1fe220000220c77f R09: ff11000013ec8b80
[ 12.061112][ T175] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[ 12.061467][ T175] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f5f9000
[ 12.061849][ T175] FS: 00007f092328f840(0000) GS:ff11000085a79000(0000) knlGS:0000000000000000
[ 12.062264][ T175] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 12.062687][ T175] CR2: 0000000000479648 CR3: 0000000001ee8005 CR4: 0000000000771ef0
[ 12.063054][ T175] PKRU: 55555554
[ 12.063262][ T175] Call Trace:
[ 12.063472][ T175]
[ 12.063657][ T175] ? ip6_route_dev_notify+0x250/0x380
[ 12.063924][ T175] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 12.064190][ T175] ? notifier_call_chain+0xb0/0x320
[ 12.064451][ T175] rtmsg_ifinfo+0x5c/0xb0
[ 12.064692][ T175] register_netdevice+0x1526/0x1bc0
[ 12.064957][ T175] ? unregister_netdevice_queue+0x470/0x470
[ 12.065265][ T175] ? alloc_netdev_mqs+0xeda/0x1430
[ 12.065528][ T175] register_netdev+0x23/0x40
[ 12.065810][ T175] loopback_net_init+0x7d/0x150
[ 12.066076][ T175] ops_init+0x187/0x560
[ 12.066290][ T175] setup_net+0x11b/0x3b0
[ 12.066499][ T175] ? unregister_pernet_device+0x80/0x80
[ 12.066780][ T175] ? lockdep_init_map_type+0x5d/0x250
[ 12.067042][ T175] ? mutex_init_lockdep+0xf6/0x120
[ 12.067308][ T175] copy_net_ns+0x2fd/0x450
[ 12.067570][ T175] create_new_namespaces+0x371/0xa10
[ 12.067863][ T175] unshare_nsproxy_namespaces+0xa5/0x150
[ 12.068125][ T175] ksys_unshare+0x47e/0x8c0
[ 12.068385][ T175] ? walk_process_tree+0x350/0x350
[ 12.068669][ T175] ? __ia32_sys_open+0x1b0/0x1b0
[ 12.068942][ T175] __x64_sys_unshare+0x34/0x50
[ 12.069203][ T175] ? do_syscall_64+0x82/0xfc0
[ 12.069461][ T175] do_syscall_64+0x117/0xfc0
[ 12.069747][ T175] ? trace_hardirqs_off+0xd/0x30
[ 12.070014][ T175] ? exc_page_fault+0xee/0x100
[ 12.070274][ T175] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 12.070582][ T175] RIP: 0033:0x7f0923551bcb
[ 12.070873][ 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
[ 12.071689][ T175] RSP: 002b:00007ffda1fc4f08 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[ 12.072053][ T175] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f0923551bcb
[ 12.072414][ T175] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 12.072796][ T175] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 12.073165][ T175] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffda1fc7130
[ 12.073524][ T175] R13: 0000000000000001 R14: 00007f092328f6f8 R15: 00007ffda1fc8868
[ 12.073923][ T175]
[ 12.074129][ T175] irq event stamp: 25733
[ 12.074336][ T175] hardirqs last enabled at (25743): [] __up_console_sem+0x5a/0x70
[ 12.074772][ T175] hardirqs last disabled at (25754): [] __up_console_sem+0x3f/0x70
[ 12.075185][ T175] softirqs last enabled at (25176): [] handle_softirqs+0x611/0x940
[ 12.075593][ T175] softirqs last disabled at (25163): [] __irq_exit_rcu+0x103/0x1c0
[ 12.076027][ T175] ---[ end trace 0000000000000000 ]---
[ 12.252178][ T174] ------------[ cut here ]------------
[ 12.252516][ T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: python3/174
[ 12.252979][ T174] Modules linked in: netdevsim
[ 12.253192][ T174] CPU: 3 UID: 0 PID: 174 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 12.253585][ T174] Tainted: [W]=WARN
[ 12.253853][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.254133][ T174] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 12.254437][ 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
[ 12.255409][ T174] RSP: 0018:ffa00000008d7500 EFLAGS: 00010286
[ 12.255847][ T174] RAX: 00000000ffffffa6 RBX: ff1100001175db40 RCX: 1ff400000011ae66
[ 12.256201][ T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100001175dbf0
[ 12.256540][ T174] RBP: ff11000004a82000 R08: 1fe22000022ebb7f R09: ff11000013155248
[ 12.257027][ T174] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 12.257349][ T174] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000004a82000
[ 12.257848][ T174] FS: 00007fddc04dc400(0000) GS:ff11000085af9000(0000) knlGS:0000000000000000
[ 12.258310][ T174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 12.258777][ T174] CR2: 00007ff69f75d808 CR3: 0000000014663002 CR4: 0000000000771ef0
[ 12.259129][ T174] PKRU: 55555554
[ 12.259318][ T174] Call Trace:
[ 12.259510][ T174]
[ 12.259605][ T174] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 12.259849][ T174] rtmsg_ifinfo+0x5c/0xb0
[ 12.259982][ T174] register_netdevice+0x1526/0x1bc0
[ 12.260205][ T174] ? unregister_netdevice_queue+0x470/0x470
[ 12.260535][ T174] ? __debugfs_create_file+0x2cf/0x3c0
[ 12.260842][ T174] nsim_init_netdevsim+0x80e/0xcb0 [netdevsim]
[ 12.261194][ T174] nsim_create+0x45b/0x5b0 [netdevsim]
[ 12.261472][ T174] __nsim_dev_port_add+0x30b/0x7a0 [netdevsim]
[ 12.261816][ T174] ? add_timer_on+0x580/0x580
[ 12.262002][ T174] ? nsim_dev_get_vfs+0x90/0x90 [netdevsim]
[ 12.262221][ T174] ? is_module_address+0x68/0x110
[ 12.262390][ T174] ? static_obj+0x5d/0x90
[ 12.262518][ T174] ? mark_held_locks+0x40/0x70
[ 12.262702][ T174] ? nsim_dev_hwstats_init+0x3a4/0x4d0 [netdevsim]
[ 12.262919][ T174] nsim_drv_probe+0x59e/0x8d0 [netdevsim]
[ 12.263094][ T174] call_driver_probe+0x61/0x1c0
[ 12.263267][ T174] really_probe+0x199/0x760
[ 12.263444][ T174] ? driver_probe_device+0x130/0x130
[ 12.263627][ T174] __driver_probe_device+0x1dc/0x430
[ 12.263804][ T174] driver_probe_device+0x4a/0x130
[ 12.263976][ T174] __device_attach_driver+0x16d/0x2a0
[ 12.264151][ T174] bus_for_each_drv+0x135/0x1e0
[ 12.264325][ T174] ? bus_find_device_reverse+0x1c0/0x1c0
[ 12.264502][ T174] __device_attach+0x1a6/0x410
[ 12.264685][ T174] ? __rwlock_init+0x150/0x150
[ 12.264859][ T174] ? __driver_attach_async_helper+0x2a0/0x2a0
[ 12.265076][ T174] ? do_raw_spin_unlock+0x59/0x250
[ 12.265249][ T174] ? _raw_spin_unlock+0x2d/0x50
[ 12.265422][ T174] device_initial_probe+0x8b/0xc0
[ 12.265592][ T174] bus_probe_device+0x63/0x160
[ 12.265775][ T174] device_add+0xb16/0x1130
[ 12.265949][ T174] ? __fw_devlink_link_to_consumers.isra.0+0x2d0/0x2d0
[ 12.266166][ T174] ? __init_waitqueue_head+0xcb/0x160
[ 12.266338][ T174] ? pm_runtime_init+0x323/0x3f0
[ 12.266513][ T174] new_device_store+0x3d4/0x730 [netdevsim]
[ 12.266783][ T174] ? __lock_release.isra.0+0x6b/0x1a0
[ 12.266953][ T174] ? new_port_store+0x1a0/0x1a0 [netdevsim]
[ 12.267170][ T174] ? sysfs_file_kobj+0xb3/0x1e0
[ 12.267344][ T174] ? sysfs_file_kobj+0xbd/0x1e0
[ 12.267518][ T174] ? sysfs_file_ops+0x140/0x140
[ 12.267699][ T174] kernfs_fop_write_iter+0x335/0x510
[ 12.267870][ T174] ? kernfs_ops+0xf0/0xf0
[ 12.267998][ T174] new_sync_write+0x333/0x750
[ 12.268169][ T174] ? __lock_acquire+0x508/0xc10
[ 12.268339][ T174] ? new_sync_read+0x740/0x740
[ 12.268511][ T174] ? lock_acquire.part.0+0xbc/0x260
[ 12.268691][ T174] ? ksys_write+0x116/0x250
[ 12.268899][ T174] vfs_write+0x6a4/0xc10
[ 12.269089][ T174] ksys_write+0x116/0x250
[ 12.269282][ T174] ? __ia32_sys_read+0xc0/0xc0
[ 12.269457][ T174] ? kernfs_fop_llseek+0x160/0x1f0
[ 12.269640][ T174] ? rcu_is_watching+0x15/0xd0
[ 12.269816][ T174] do_syscall_64+0x117/0xfc0
[ 12.269987][ T174] ? irq_exit_rcu+0x1a/0x30
[ 12.270163][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 12.270409][ T174] RIP: 0033:0x7fddc066408e
[ 12.270593][ 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
[ 12.271221][ T174] RSP: 002b:00007ffd008b3c70 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 12.271492][ T174] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007fddc066408e
[ 12.271765][ T174] RDX: 0000000000000008 RSI: 0000562a26f2a4b0 RDI: 0000000000000006
[ 12.272021][ T174] RBP: 00007ffd008b3c80 R08: 0000000000000000 R09: 0000000000000000
[ 12.272275][ T174] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fddc04dc390
[ 12.272542][ T174] R13: 0000562a26f2a4b0 R14: 0000000000000006 R15: 00007fddc04690d0
[ 12.272822][ T174]
[ 12.272955][ T174] irq event stamp: 323363
[ 12.273087][ T174] hardirqs last enabled at (323371): [] __up_console_sem+0x5a/0x70
[ 12.273390][ T174] hardirqs last disabled at (323378): [] __up_console_sem+0x3f/0x70
[ 12.273700][ T174] softirqs last enabled at (322782): [] handle_softirqs+0x611/0x940
[ 12.274005][ T174] softirqs last disabled at (322713): [] __irq_exit_rcu+0x103/0x1c0
[ 12.274305][ T174] ---[ end trace 0000000000000000 ]---
[ 12.857400][ T12] ------------[ cut here ]------------
[ 12.857764][ T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: kworker/u16:0/12
[ 12.858163][ T12] Modules linked in: netdevsim
[ 12.858458][ T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 12.858900][ T12] Tainted: [W]=WARN
[ 12.859056][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.859361][ T12] Workqueue: netns cleanup_net
[ 12.859577][ T12] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 12.859849][ 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
[ 12.860558][ T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[ 12.860812][ T12] RAX: 00000000ffffffa6 RBX: ff11000010f52640 RCX: 1ff4000000018ed5
[ 12.861097][ T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000010f526f0
[ 12.861378][ T12] RBP: ff1100000f5f9000 R08: 1fe22000021ea4df R09: ff11000001b051d0
[ 12.861673][ T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 12.861960][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 12.862253][ T12] FS: 0000000000000000(0000) GS:ff11000085af9000(0000) knlGS:0000000000000000
[ 12.862592][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 12.862987][ T12] CR2: 00007fba4c9c5574 CR3: 000000000bf39001 CR4: 0000000000771ef0
[ 12.863280][ T12] PKRU: 55555554
[ 12.863428][ T12] Call Trace:
[ 12.863574][ T12]
[ 12.863695][ T12] unregister_netdevice_many_notify+0xce3/0x1b30
[ 12.863943][ T12] ? unregister_netdevice_queued+0x80/0x80
[ 12.864186][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 12.864379][ T12] default_device_exit_batch+0x38b/0x600
[ 12.864576][ T12] ? unregister_netdev+0x60/0x60
[ 12.864778][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 12.864992][ T12] ops_undo_list+0x2ce/0x8f0
[ 12.865188][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 12.865376][ T12] ? __lock_release.isra.0+0x6b/0x1a0
[ 12.865572][ T12] cleanup_net+0x431/0x890
[ 12.865777][ T12] ? net_passive_dec+0x1c0/0x1c0
[ 12.865969][ T12] ? lock_acquire+0x134/0x160
[ 12.866171][ T12] ? rcu_is_watching+0x15/0xd0
[ 12.866363][ T12] process_one_work+0xdf8/0x1410
[ 12.866562][ T12] ? pwq_dec_nr_in_flight+0x710/0x710
[ 12.866766][ T12] ? lock_acquire.part.0+0xbc/0x260
[ 12.866990][ T12] worker_thread+0x4f1/0xd60
[ 12.867193][ T12] ? rescuer_thread+0x1320/0x1320
[ 12.867381][ T12] kthread+0x367/0x460
[ 12.867528][ T12] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 12.867783][ T12] ? kthread_affine_node+0x330/0x330
[ 12.867978][ T12] ret_from_fork+0x474/0x6b0
[ 12.868172][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 12.868406][ T12] ? __switch_to+0x5a3/0xe00
[ 12.868600][ T12] ? kthread_affine_node+0x330/0x330
[ 12.868803][ T12] ret_from_fork_asm+0x11/0x20
[ 12.869009][ T12]
[ 12.869152][ T12] irq event stamp: 2489
[ 12.869295][ T12] hardirqs last enabled at (2497): [] __up_console_sem+0x5a/0x70
[ 12.869649][ T12] hardirqs last disabled at (2506): [] __up_console_sem+0x3f/0x70
[ 12.869974][ T12] softirqs last enabled at (2224): [] handle_softirqs+0x611/0x940
[ 12.870301][ T12] softirqs last disabled at (2219): [] __irq_exit_rcu+0x103/0x1c0
[ 12.870644][ T12] ---[ end trace 0000000000000000 ]---