[ 9.671041][ T174] ------------[ cut here ]------------
[ 9.671252][ T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/174
[ 9.671541][ T174] Modules linked in:
[ 9.671675][ T174] CPU: 3 UID: 0 PID: 174 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.671991][ T174] Tainted: [W]=WARN
[ 9.672093][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.672312][ T174] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.672490][ 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
[ 9.672980][ T174] RSP: 0018:ffa0000000857aa8 EFLAGS: 00010286
[ 9.673154][ T174] RAX: 00000000ffffffa6 RBX: ff110000095f30c0 RCX: 1ff400000010af1b
[ 9.673360][ T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000095f3170
[ 9.673561][ T174] RBP: ff11000007b89000 R08: 1fe22000012be62f R09: ff1100000b97d180
[ 9.673771][ T174] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.673973][ T174] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007b89000
[ 9.674183][ T174] FS: 00007feb7e1fa840(0000) GS:ff11000084cf9000(0000) knlGS:0000000000000000
[ 9.674428][ T174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.674600][ T174] CR2: 0000000000479648 CR3: 000000000c57d006 CR4: 0000000000771ef0
[ 9.674814][ T174] PKRU: 55555554
[ 9.674916][ T174] Call Trace:
[ 9.675018][ T174]
[ 9.675089][ T174] ? ip6_route_dev_notify+0x250/0x380
[ 9.675229][ T174] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.675672][ T174] ? notifier_call_chain+0xb0/0x320
[ 9.675815][ T174] rtmsg_ifinfo+0x5c/0xb0
[ 9.675917][ T174] register_netdevice+0x1526/0x1bc0
[ 9.676055][ T174] ? unregister_netdevice_queue+0x470/0x470
[ 9.676223][ T174] ? alloc_netdev_mqs+0xeda/0x1430
[ 9.676364][ T174] register_netdev+0x23/0x40
[ 9.676497][ T174] loopback_net_init+0x7d/0x150
[ 9.676633][ T174] ops_init+0x187/0x560
[ 9.676745][ T174] setup_net+0x11b/0x3b0
[ 9.676848][ T174] ? unregister_pernet_device+0x80/0x80
[ 9.676984][ T174] ? lockdep_init_map_type+0x5d/0x250
[ 9.677121][ T174] ? mutex_init_lockdep+0xf6/0x120
[ 9.677258][ T174] copy_net_ns+0x2fd/0x450
[ 9.677399][ T174] create_new_namespaces+0x371/0xa10
[ 9.677536][ T174] unshare_nsproxy_namespaces+0xa5/0x150
[ 9.677672][ T174] ksys_unshare+0x47e/0x8c0
[ 9.677814][ T174] ? walk_process_tree+0x350/0x350
[ 9.677951][ T174] ? __ia32_sys_open+0x1b0/0x1b0
[ 9.678090][ T174] __x64_sys_unshare+0x34/0x50
[ 9.678227][ T174] ? do_syscall_64+0x82/0xfc0
[ 9.678366][ T174] do_syscall_64+0x117/0xfc0
[ 9.678498][ T174] ? trace_hardirqs_off+0xd/0x30
[ 9.678632][ T174] ? exc_page_fault+0xee/0x100
[ 9.678772][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.678943][ T174] RIP: 0033:0x7feb7e4bcbcb
[ 9.679085][ 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
[ 9.679566][ T174] RSP: 002b:00007ffdd3410528 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[ 9.679811][ T174] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007feb7e4bcbcb
[ 9.680022][ T174] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 9.680236][ T174] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 9.680449][ T174] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdd3412750
[ 9.680654][ T174] R13: 0000000000000001 R14: 00007feb7e1fa6f8 R15: 00007ffdd3414856
[ 9.680872][ T174]
[ 9.680978][ T174] irq event stamp: 25193
[ 9.681081][ T174] hardirqs last enabled at (25201): [] __up_console_sem+0x5a/0x70
[ 9.681335][ T174] hardirqs last disabled at (25210): [] __up_console_sem+0x3f/0x70
[ 9.681573][ T174] softirqs last enabled at (24910): [] handle_softirqs+0x611/0x940
[ 9.681821][ T174] softirqs last disabled at (24375): [] __irq_exit_rcu+0x103/0x1c0
[ 9.682063][ T174] ---[ end trace 0000000000000000 ]---
[ 9.797019][ T173] ------------[ cut here ]------------
[ 9.797407][ T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: python3/173
[ 9.797759][ T173] Modules linked in: netdevsim
[ 9.797967][ T173] CPU: 0 UID: 0 PID: 173 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.798359][ T173] Tainted: [W]=WARN
[ 9.798488][ T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.798701][ T173] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.798930][ 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
[ 9.799540][ T173] RSP: 0018:ffa0000000847500 EFLAGS: 00010286
[ 9.799759][ T173] RAX: 00000000ffffffa6 RBX: ff1100000764cdc0 RCX: 1ff4000000108e66
[ 9.800010][ T173] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000764ce70
[ 9.800264][ T173] RBP: ff11000004d2a000 R08: 1fe2200000ec99cf R09: ff11000004f7d248
[ 9.800517][ T173] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.800771][ T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000004d2a000
[ 9.801061][ T173] FS: 00007fa390b47400(0000) GS:ff11000084b79000(0000) knlGS:0000000000000000
[ 9.801367][ T173] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.801578][ T173] CR2: 000055dd47f2d2a0 CR3: 000000000e0c9003 CR4: 0000000000771ef0
[ 9.801875][ T173] PKRU: 55555554
[ 9.802005][ T173] Call Trace:
[ 9.802136][ T173]
[ 9.802224][ T173] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.802403][ T173] rtmsg_ifinfo+0x5c/0xb0
[ 9.802532][ T173] register_netdevice+0x1526/0x1bc0
[ 9.802701][ T173] ? unregister_netdevice_queue+0x470/0x470
[ 9.802917][ T173] ? __debugfs_create_file+0x2cf/0x3c0
[ 9.803089][ T173] nsim_init_netdevsim+0x80e/0xcb0 [netdevsim]
[ 9.803313][ T173] nsim_create+0x45b/0x5b0 [netdevsim]
[ 9.803483][ T173] __nsim_dev_port_add+0x30b/0x7a0 [netdevsim]
[ 9.803692][ T173] ? add_timer_on+0x580/0x580
[ 9.803866][ T173] ? nsim_dev_get_vfs+0x90/0x90 [netdevsim]
[ 9.804079][ T173] ? is_module_address+0x68/0x110
[ 9.804251][ T173] ? static_obj+0x5d/0x90
[ 9.804384][ T173] ? mark_held_locks+0x40/0x70
[ 9.804553][ T173] ? nsim_dev_hwstats_init+0x3a4/0x4d0 [netdevsim]
[ 9.804772][ T173] nsim_drv_probe+0x59e/0x8d0 [netdevsim]
[ 9.804944][ T173] call_driver_probe+0x61/0x1c0
[ 9.805118][ T173] really_probe+0x199/0x760
[ 9.805290][ T173] ? driver_probe_device+0x130/0x130
[ 9.805456][ T173] __driver_probe_device+0x1dc/0x430
[ 9.805624][ T173] driver_probe_device+0x4a/0x130
[ 9.805797][ T173] __device_attach_driver+0x16d/0x2a0
[ 9.805967][ T173] bus_for_each_drv+0x135/0x1e0
[ 9.806137][ T173] ? bus_find_device_reverse+0x1c0/0x1c0
[ 9.806314][ T173] __device_attach+0x1a6/0x410
[ 9.806481][ T173] ? __rwlock_init+0x150/0x150
[ 9.806647][ T173] ? __driver_attach_async_helper+0x2a0/0x2a0
[ 9.806860][ T173] ? do_raw_spin_unlock+0x59/0x250
[ 9.807029][ T173] ? _raw_spin_unlock+0x2d/0x50
[ 9.807200][ T173] device_initial_probe+0x8b/0xc0
[ 9.807373][ T173] bus_probe_device+0x63/0x160
[ 9.807541][ T173] device_add+0xb16/0x1130
[ 9.807706][ T173] ? __fw_devlink_link_to_consumers.isra.0+0x2d0/0x2d0
[ 9.807922][ T173] ? __init_waitqueue_head+0xcb/0x160
[ 9.808088][ T173] ? pm_runtime_init+0x323/0x3f0
[ 9.808261][ T173] new_device_store+0x3d4/0x730 [netdevsim]
[ 9.808476][ T173] ? __lock_release.isra.0+0x6b/0x1a0
[ 9.808643][ T173] ? new_port_store+0x1a0/0x1a0 [netdevsim]
[ 9.808860][ T173] ? sysfs_file_kobj+0xb3/0x1e0
[ 9.809034][ T173] ? sysfs_file_kobj+0xbd/0x1e0
[ 9.809206][ T173] ? sysfs_file_ops+0x140/0x140
[ 9.809377][ T173] kernfs_fop_write_iter+0x335/0x510
[ 9.809545][ T173] ? kernfs_ops+0xf0/0xf0
[ 9.809671][ T173] new_sync_write+0x333/0x750
[ 9.809846][ T173] ? __lock_acquire+0x508/0xc10
[ 9.810016][ T173] ? new_sync_read+0x740/0x740
[ 9.810189][ T173] ? lock_acquire.part.0+0xbc/0x260
[ 9.810364][ T173] ? ksys_write+0x116/0x250
[ 9.810536][ T173] vfs_write+0x6a4/0xc10
[ 9.810665][ T173] ksys_write+0x116/0x250
[ 9.810798][ T173] ? __ia32_sys_read+0xc0/0xc0
[ 9.810965][ T173] ? kernfs_fop_llseek+0x160/0x1f0
[ 9.811137][ T173] ? rcu_is_watching+0x15/0xd0
[ 9.811312][ T173] do_syscall_64+0x117/0xfc0
[ 9.811481][ T173] ? irq_exit_rcu+0x1a/0x30
[ 9.811650][ T173] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.811866][ T173] RIP: 0033:0x7fa390ccf08e
[ 9.812041][ 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
[ 9.812640][ T173] RSP: 002b:00007ffe45d5f720 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9.812924][ T173] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007fa390ccf08e
[ 9.813177][ T173] RDX: 0000000000000009 RSI: 000056172c09e8b0 RDI: 0000000000000006
[ 9.813432][ T173] RBP: 00007ffe45d5f730 R08: 0000000000000000 R09: 0000000000000000
[ 9.813679][ T173] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fa390b47390
[ 9.813935][ T173] R13: 000056172c09e8b0 R14: 0000000000000006 R15: 00007fa390ad50d0
[ 9.814205][ T173]
[ 9.814362][ T173] irq event stamp: 319595
[ 9.814487][ T173] hardirqs last enabled at (319603): [] __up_console_sem+0x5a/0x70
[ 9.814786][ T173] hardirqs last disabled at (319610): [] __up_console_sem+0x3f/0x70
[ 9.815076][ T173] softirqs last enabled at (319592): [] handle_softirqs+0x611/0x940
[ 9.815371][ T173] softirqs last disabled at (319587): [] __irq_exit_rcu+0x103/0x1c0
[ 9.815660][ T173] ---[ end trace 0000000000000000 ]---
[ 10.426727][ T69] ------------[ cut here ]------------
[ 10.427068][ T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: kworker/u16:1/69
[ 10.427439][ T69] Modules linked in: netdevsim
[ 10.427605][ T69] CPU: 1 UID: 0 PID: 69 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 10.427983][ T69] Tainted: [W]=WARN
[ 10.428078][ T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.428259][ T69] Workqueue: netns cleanup_net
[ 10.428410][ T69] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 10.428660][ T69] 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
[ 10.429187][ T69] RSP: 0018:ffa00000004a7878 EFLAGS: 00010286
[ 10.429427][ T69] RAX: 00000000ffffffa6 RBX: ff1100000c1c0940 RCX: 1ff4000000094ed5
[ 10.429613][ T69] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c1c09f0
[ 10.429810][ T69] RBP: ff11000007b89000 R08: 1fe220000183813f R09: ff11000005c151d0
[ 10.429996][ T69] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[ 10.430336][ T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 10.430527][ T69] FS: 0000000000000000(0000) GS:ff11000084bf9000(0000) knlGS:0000000000000000
[ 10.430924][ T69] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 10.431083][ T69] CR2: 00007fa38f0788f4 CR3: 0000000024939005 CR4: 0000000000771ef0
[ 10.431420][ T69] PKRU: 55555554
[ 10.431514][ T69] Call Trace:
[ 10.431606][ T69]
[ 10.431672][ T69] unregister_netdevice_many_notify+0xce3/0x1b30
[ 10.431837][ T69] ? unregister_netdevice_queued+0x80/0x80
[ 10.431993][ T69] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.432131][ T69] default_device_exit_batch+0x38b/0x600
[ 10.432255][ T69] ? unregister_netdev+0x60/0x60
[ 10.432436][ T69] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.432559][ T69] ops_undo_list+0x2ce/0x8f0
[ 10.432687][ T69] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 10.432815][ T69] ? __lock_release.isra.0+0x6b/0x1a0
[ 10.432944][ T69] cleanup_net+0x431/0x890
[ 10.433082][ T69] ? net_passive_dec+0x1c0/0x1c0
[ 10.433206][ T69] ? process_one_work+0xdb7/0x1410
[ 10.433388][ T69] ? lock_acquire+0x134/0x160
[ 10.433509][ T69] ? rcu_is_watching+0x15/0xd0
[ 10.433634][ T69] process_one_work+0xdf8/0x1410
[ 10.433769][ T69] ? pwq_dec_nr_in_flight+0x710/0x710
[ 10.433896][ T69] ? lock_acquire.part.0+0xbc/0x260
[ 10.434024][ T69] worker_thread+0x4f1/0xd60
[ 10.434165][ T69] ? rescuer_thread+0x1320/0x1320
[ 10.434376][ T69] ? __kthread_parkme+0xbd/0x210
[ 10.434529][ T69] ? rescuer_thread+0x1320/0x1320
[ 10.434651][ T69] kthread+0x367/0x460
[ 10.434749][ T69] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 10.434904][ T69] ? kthread_affine_node+0x330/0x330
[ 10.435027][ T69] ret_from_fork+0x474/0x6b0
[ 10.435232][ T69] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 10.435452][ T69] ? __switch_to+0x5a3/0xe00
[ 10.435601][ T69] ? kthread_affine_node+0x330/0x330
[ 10.435736][ T69] ret_from_fork_asm+0x11/0x20
[ 10.435868][ T69]
[ 10.435980][ T69] irq event stamp: 3073
[ 10.436072][ T69] hardirqs last enabled at (3081): [] __up_console_sem+0x5a/0x70
[ 10.436417][ T69] hardirqs last disabled at (3190): [] __up_console_sem+0x3f/0x70
[ 10.436631][ T69] softirqs last enabled at (3188): [] handle_softirqs+0x611/0x940
[ 10.436847][ T69] softirqs last disabled at (3089): [] __irq_exit_rcu+0x103/0x1c0
[ 10.437060][ T69] ---[ end trace 0000000000000000 ]---