[ 9.859108][ T174] ------------[ cut here ]------------
[ 9.859423][ T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/174
[ 9.859725][ T174] Modules linked in:
[ 9.859887][ T174] CPU: 3 UID: 0 PID: 174 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.860247][ T174] Tainted: [W]=WARN
[ 9.860374][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.860663][ T174] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.860911][ 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
[ 9.861525][ T174] RSP: 0018:ffa0000000867aa8 EFLAGS: 00010286
[ 9.861749][ T174] RAX: 00000000ffffffa6 RBX: ff11000009570f40 RCX: 1ff400000010cf1b
[ 9.862007][ T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009570ff0
[ 9.862270][ T174] RBP: ff11000007c24000 R08: 1fe22000012ae1ff R09: ff1100000a07d180
[ 9.862519][ T174] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.862765][ T174] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007c24000
[ 9.863023][ T174] FS: 00007f9562fc7840(0000) GS:ff110000a20f9000(0000) knlGS:0000000000000000
[ 9.863323][ T174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.863539][ T174] CR2: 0000000000479648 CR3: 000000000beed004 CR4: 0000000000771ef0
[ 9.863791][ T174] PKRU: 55555554
[ 9.863913][ T174] Call Trace:
[ 9.864048][ T174]
[ 9.864139][ T174] ? ip6_route_dev_notify+0x250/0x380
[ 9.864322][ T174] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.864492][ T174] ? notifier_call_chain+0xb0/0x320
[ 9.864661][ T174] rtmsg_ifinfo+0x5c/0xb0
[ 9.864784][ T174] register_netdevice+0x1526/0x1bc0
[ 9.864953][ T174] ? unregister_netdevice_queue+0x470/0x470
[ 9.865179][ T174] ? alloc_netdev_mqs+0xeda/0x1430
[ 9.865352][ T174] register_netdev+0x23/0x40
[ 9.865523][ T174] loopback_net_init+0x7d/0x150
[ 9.865694][ T174] ops_init+0x187/0x560
[ 9.865818][ T174] setup_net+0x11b/0x3b0
[ 9.865952][ T174] ? unregister_pernet_device+0x80/0x80
[ 9.866123][ T174] ? lockdep_init_map_type+0x5d/0x250
[ 9.866307][ T174] ? mutex_init_lockdep+0xf6/0x120
[ 9.866478][ T174] copy_net_ns+0x2fd/0x450
[ 9.866651][ T174] create_new_namespaces+0x371/0xa10
[ 9.866820][ T174] unshare_nsproxy_namespaces+0xa5/0x150
[ 9.866994][ T174] ksys_unshare+0x47e/0x8c0
[ 9.867173][ T174] ? walk_process_tree+0x350/0x350
[ 9.867342][ T174] ? __ia32_sys_open+0x1b0/0x1b0
[ 9.867512][ T174] __x64_sys_unshare+0x34/0x50
[ 9.867677][ T174] ? do_syscall_64+0x82/0xfc0
[ 9.867846][ T174] do_syscall_64+0x117/0xfc0
[ 9.868021][ T174] ? trace_hardirqs_off+0xd/0x30
[ 9.868195][ T174] ? exc_page_fault+0xee/0x100
[ 9.868363][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.868577][ T174] RIP: 0033:0x7f9563289bcb
[ 9.868751][ 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
[ 9.869361][ T174] RSP: 002b:00007ffcc494b458 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[ 9.869629][ T174] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f9563289bcb
[ 9.869882][ T174] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 9.870139][ T174] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 9.870403][ T174] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcc494d680
[ 9.870662][ T174] R13: 0000000000000001 R14: 00007f9562fc76f8 R15: 00007ffcc494e85e
[ 9.870921][ T174]
[ 9.871048][ T174] irq event stamp: 18497
[ 9.871187][ T174] hardirqs last enabled at (18507): [] __up_console_sem+0x5a/0x70
[ 9.871477][ T174] hardirqs last disabled at (18514): [] __up_console_sem+0x3f/0x70
[ 9.871770][ T174] softirqs last enabled at (17984): [] __alloc_skb+0x4c5/0x5f0
[ 9.872058][ T174] softirqs last disabled at (17982): [] __alloc_skb+0x4c5/0x5f0
[ 9.872357][ T174] ---[ end trace 0000000000000000 ]---
[ 9.995728][ T173] ------------[ cut here ]------------
[ 9.996077][ T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: python3/173
[ 9.996544][ T173] Modules linked in: netdevsim
[ 9.996823][ T173] CPU: 2 UID: 0 PID: 173 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.997246][ T173] Tainted: [W]=WARN
[ 9.997441][ T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.997717][ T173] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.998008][ 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
[ 9.998680][ T173] RSP: 0018:ffa0000000857500 EFLAGS: 00010286
[ 9.998959][ T173] RAX: 00000000ffffffa6 RBX: ff1100000b16e640 RCX: 1ff400000010ae66
[ 9.999292][ T173] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b16e6f0
[ 9.999610][ T173] RBP: ff1100000bc42000 R08: 1fe220000162dcdf R09: ff1100000a07af48
[ 9.999926][ T173] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[ 10.000263][ T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000bc42000
[ 10.000580][ T173] FS: 00007f1794f7f400(0000) GS:ff110000a2079000(0000) knlGS:0000000000000000
[ 10.000936][ T173] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 10.001231][ T173] CR2: 000055eb6e5c4c70 CR3: 000000000d249003 CR4: 0000000000771ef0
[ 10.001547][ T173] PKRU: 55555554
[ 10.001739][ T173] Call Trace:
[ 10.001931][ T173]
[ 10.002060][ T173] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 10.002280][ T173] rtmsg_ifinfo+0x5c/0xb0
[ 10.002485][ T173] register_netdevice+0x1526/0x1bc0
[ 10.002737][ T173] ? unregister_netdevice_queue+0x470/0x470
[ 10.003013][ T173] ? __debugfs_create_file+0x2cf/0x3c0
[ 10.003268][ T173] nsim_init_netdevsim+0x80e/0xcb0 [netdevsim]
[ 10.003550][ T173] nsim_create+0x45b/0x5b0 [netdevsim]
[ 10.003790][ T173] __nsim_dev_port_add+0x30b/0x7a0 [netdevsim]
[ 10.004073][ T173] ? add_timer_on+0x580/0x580
[ 10.004324][ T173] ? nsim_dev_get_vfs+0x90/0x90 [netdevsim]
[ 10.004599][ T173] ? is_module_address+0x68/0x110
[ 10.004829][ T173] ? static_obj+0x5d/0x90
[ 10.005025][ T173] ? mark_held_locks+0x40/0x70
[ 10.005275][ T173] ? nsim_dev_hwstats_init+0x3a4/0x4d0 [netdevsim]
[ 10.005553][ T173] nsim_drv_probe+0x59e/0x8d0 [netdevsim]
[ 10.005790][ T173] call_driver_probe+0x61/0x1c0
[ 10.006032][ T173] really_probe+0x199/0x760
[ 10.006281][ T173] ? driver_probe_device+0x130/0x130
[ 10.006512][ T173] __driver_probe_device+0x1dc/0x430
[ 10.006746][ T173] driver_probe_device+0x4a/0x130
[ 10.006977][ T173] __device_attach_driver+0x16d/0x2a0
[ 10.007231][ T173] bus_for_each_drv+0x135/0x1e0
[ 10.007462][ T173] ? bus_find_device_reverse+0x1c0/0x1c0
[ 10.007700][ T173] __device_attach+0x1a6/0x410
[ 10.007930][ T173] ? __rwlock_init+0x150/0x150
[ 10.008183][ T173] ? __driver_attach_async_helper+0x2a0/0x2a0
[ 10.008455][ T173] ? do_raw_spin_unlock+0x59/0x250
[ 10.008687][ T173] ? _raw_spin_unlock+0x2d/0x50
[ 10.008920][ T173] device_initial_probe+0x8b/0xc0
[ 10.009172][ T173] bus_probe_device+0x63/0x160
[ 10.009402][ T173] device_add+0xb16/0x1130
[ 10.009636][ T173] ? __fw_devlink_link_to_consumers.isra.0+0x2d0/0x2d0
[ 10.009907][ T173] ? __init_waitqueue_head+0xcb/0x160
[ 10.010147][ T173] ? pm_runtime_init+0x323/0x3f0
[ 10.010456][ T173] new_device_store+0x3d4/0x730 [netdevsim]
[ 10.010730][ T173] ? __lock_release.isra.0+0x6b/0x1a0
[ 10.010962][ T173] ? new_port_store+0x1a0/0x1a0 [netdevsim]
[ 10.011263][ T173] ? sysfs_file_kobj+0xb3/0x1e0
[ 10.011500][ T173] ? sysfs_file_kobj+0xbd/0x1e0
[ 10.011734][ T173] ? sysfs_file_ops+0x140/0x140
[ 10.011965][ T173] kernfs_fop_write_iter+0x335/0x510
[ 10.012222][ T173] ? kernfs_ops+0xf0/0xf0
[ 10.012415][ T173] new_sync_write+0x333/0x750
[ 10.012648][ T173] ? __lock_acquire+0x508/0xc10
[ 10.012879][ T173] ? new_sync_read+0x740/0x740
[ 10.013126][ T173] ? lock_acquire.part.0+0xbc/0x260
[ 10.013371][ T173] ? ksys_write+0x116/0x250
[ 10.013608][ T173] vfs_write+0x6a4/0xc10
[ 10.013801][ T173] ksys_write+0x116/0x250
[ 10.014003][ T173] ? __ia32_sys_read+0xc0/0xc0
[ 10.014251][ T173] ? kernfs_fop_llseek+0x160/0x1f0
[ 10.014485][ T173] ? rcu_is_watching+0x15/0xd0
[ 10.014720][ T173] do_syscall_64+0x117/0xfc0
[ 10.014957][ T173] ? trace_hardirqs_off+0xd/0x30
[ 10.015210][ T173] ? exc_page_fault+0xee/0x100
[ 10.015446][ T173] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 10.015718][ T173] RIP: 0033:0x7f179510708e
[ 10.015958][ 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
[ 10.016620][ T173] RSP: 002b:00007ffe1b3e88a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 10.016933][ T173] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f179510708e
[ 10.017265][ T173] RDX: 0000000000000008 RSI: 00005602ac2e10a0 RDI: 0000000000000006
[ 10.017577][ T173] RBP: 00007ffe1b3e88b0 R08: 0000000000000000 R09: 0000000000000000
[ 10.017889][ T173] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f1794f7f390
[ 10.018220][ T173] R13: 00005602ac2e10a0 R14: 0000000000000006 R15: 00007f1794f0d0d0
[ 10.018540][ T173]
[ 10.018728][ T173] irq event stamp: 338091
[ 10.018918][ T173] hardirqs last enabled at (338101): [] __up_console_sem+0x5a/0x70
[ 10.019295][ T173] hardirqs last disabled at (338112): [] __up_console_sem+0x3f/0x70
[ 10.019647][ T173] softirqs last enabled at (337142): [] __alloc_skb+0x4c5/0x5f0
[ 10.020005][ T173] softirqs last disabled at (337140): [] __alloc_skb+0x4c5/0x5f0
[ 10.020370][ T173] ---[ end trace 0000000000000000 ]---
[ 10.598099][ T173] python3 (173) used greatest stack depth: 24040 bytes left
[ 10.618878][ T12] ------------[ cut here ]------------
[ 10.619133][ T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: kworker/u16:0/12
[ 10.619468][ T12] Modules linked in: netdevsim
[ 10.619700][ T12] CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 10.620053][ T12] Tainted: [W]=WARN
[ 10.620282][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.620577][ T12] Workqueue: netns cleanup_net
[ 10.620798][ T12] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 10.621037][ 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
[ 10.621555][ T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[ 10.621779][ T12] RAX: 00000000ffffffa6 RBX: ff1100000b80f6c0 RCX: 1ff4000000018ed5
[ 10.622038][ T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b80f770
[ 10.622307][ T12] RBP: ff11000007c24000 R08: 1fe2200001701eef R09: ff11000001b051d0
[ 10.622554][ T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[ 10.622819][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 10.623075][ T12] FS: 0000000000000000(0000) GS:ff110000a2079000(0000) knlGS:0000000000000000
[ 10.623371][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 10.623608][ T12] CR2: 00007f7f57aa7f98 CR3: 000000001df39006 CR4: 0000000000771ef0
[ 10.623864][ T12] PKRU: 55555554
[ 10.624026][ T12] Call Trace:
[ 10.624197][ T12]
[ 10.624328][ T12] unregister_netdevice_many_notify+0xce3/0x1b30
[ 10.624553][ T12] ? unregister_netdevice_queued+0x80/0x80
[ 10.624770][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.624960][ T12] default_device_exit_batch+0x38b/0x600
[ 10.625176][ T12] ? unregister_netdev+0x60/0x60
[ 10.625367][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.625571][ T12] ops_undo_list+0x2ce/0x8f0
[ 10.625749][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 10.625933][ T12] ? __lock_release.isra.0+0x6b/0x1a0
[ 10.626132][ T12] cleanup_net+0x431/0x890
[ 10.626333][ T12] ? net_passive_dec+0x1c0/0x1c0
[ 10.626523][ T12] ? lock_acquire+0x134/0x160
[ 10.626710][ T12] ? rcu_is_watching+0x15/0xd0
[ 10.626907][ T12] process_one_work+0xdf8/0x1410
[ 10.627108][ T12] ? pwq_dec_nr_in_flight+0x710/0x710
[ 10.627302][ T12] ? lock_acquire.part.0+0xbc/0x260
[ 10.627496][ T12] worker_thread+0x4f1/0xd60
[ 10.627689][ T12] ? rescuer_thread+0x1320/0x1320
[ 10.627877][ T12] kthread+0x367/0x460
[ 10.628044][ T12] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 10.628275][ T12] ? kthread_affine_node+0x330/0x330
[ 10.628467][ T12] ret_from_fork+0x474/0x6b0
[ 10.628657][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 10.628877][ T12] ? __switch_to+0x5a3/0xe00
[ 10.629076][ T12] ? kthread_affine_node+0x330/0x330
[ 10.629311][ T12] ret_from_fork_asm+0x11/0x20
[ 10.629521][ T12]
[ 10.629674][ T12] irq event stamp: 5299
[ 10.629844][ T12] hardirqs last enabled at (5309): [] __up_console_sem+0x5a/0x70
[ 10.630140][ T12] hardirqs last disabled at (5318): [] __up_console_sem+0x3f/0x70
[ 10.630443][ T12] softirqs last enabled at (5050): [] handle_softirqs+0x611/0x940
[ 10.630725][ T12] softirqs last disabled at (5045): [] __irq_exit_rcu+0x103/0x1c0
[ 10.631016][ T12] ---[ end trace 0000000000000000 ]---