[ 9.420661][ T174] ------------[ cut here ]------------
[ 9.420945][ T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/174
[ 9.421324][ T174] Modules linked in:
[ 9.421513][ T174] CPU: 2 UID: 0 PID: 174 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.421849][ T174] Tainted: [W]=WARN
[ 9.422341][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.422559][ T174] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.422798][ 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
[ 9.423387][ T174] RSP: 0018:ffa0000000837aa8 EFLAGS: 00010286
[ 9.423609][ T174] RAX: 00000000ffffffa6 RBX: ff1100000b15f3c0 RCX: 1ff4000000106f1b
[ 9.423872][ T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b15f470
[ 9.424135][ T174] RBP: ff110000057f1000 R08: 1fe220000162be8f R09: ff1100000c39d180
[ 9.424385][ T174] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.424632][ T174] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000057f1000
[ 9.424899][ T174] FS: 00007ff2b03cf840(0000) GS:ff11000078279000(0000) knlGS:0000000000000000
[ 9.425197][ T174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.425412][ T174] CR2: 0000000000479648 CR3: 000000000936a003 CR4: 0000000000771ef0
[ 9.425684][ T174] PKRU: 55555554
[ 9.425846][ T174] Call Trace:
[ 9.426007][ T174]
[ 9.426127][ T174] ? ip6_route_dev_notify+0x250/0x380
[ 9.426312][ T174] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.426497][ T174] ? notifier_call_chain+0xb0/0x320
[ 9.426683][ T174] rtmsg_ifinfo+0x5c/0xb0
[ 9.426853][ T174] register_netdevice+0x1526/0x1bc0
[ 9.427053][ T174] ? unregister_netdevice_queue+0x470/0x470
[ 9.427268][ T174] ? alloc_netdev_mqs+0xeda/0x1430
[ 9.427454][ T174] register_netdev+0x23/0x40
[ 9.427637][ T174] loopback_net_init+0x7d/0x150
[ 9.427839][ T174] ops_init+0x187/0x560
[ 9.428008][ T174] setup_net+0x11b/0x3b0
[ 9.428167][ T174] ? unregister_pernet_device+0x80/0x80
[ 9.428348][ T174] ? lockdep_init_map_type+0x5d/0x250
[ 9.428534][ T174] ? mutex_init_lockdep+0xf6/0x120
[ 9.428719][ T174] copy_net_ns+0x2fd/0x450
[ 9.428915][ T174] create_new_namespaces+0x371/0xa10
[ 9.429115][ T174] unshare_nsproxy_namespaces+0xa5/0x150
[ 9.429300][ T174] ksys_unshare+0x47e/0x8c0
[ 9.429489][ T174] ? walk_process_tree+0x350/0x350
[ 9.429671][ T174] ? __ia32_sys_open+0x1b0/0x1b0
[ 9.429874][ T174] __x64_sys_unshare+0x34/0x50
[ 9.430071][ T174] ? do_syscall_64+0x82/0xfc0
[ 9.430256][ T174] do_syscall_64+0x117/0xfc0
[ 9.430438][ T174] ? trace_hardirqs_off+0xd/0x30
[ 9.430621][ T174] ? exc_page_fault+0xee/0x100
[ 9.430820][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.431052][ T174] RIP: 0033:0x7ff2b0691bcb
[ 9.431242][ 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
[ 9.431763][ T174] RSP: 002b:00007fff082959b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[ 9.432037][ T174] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007ff2b0691bcb
[ 9.432285][ T174] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 9.432532][ T174] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 9.432788][ T174] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff08297be0
[ 9.433050][ T174] R13: 0000000000000001 R14: 00007ff2b03cf6f8 R15: 00007fff08299862
[ 9.433325][ T174]
[ 9.433474][ T174] irq event stamp: 20311
[ 9.433622][ T174] hardirqs last enabled at (20321): [] __up_console_sem+0x5a/0x70
[ 9.433912][ T174] hardirqs last disabled at (20330): [] __up_console_sem+0x3f/0x70
[ 9.434216][ T174] softirqs last enabled at (19774): [] handle_softirqs+0x611/0x940
[ 9.434522][ T174] softirqs last disabled at (19211): [] __irq_exit_rcu+0x103/0x1c0
[ 9.434814][ T174] ---[ end trace 0000000000000000 ]---
[ 9.569461][ T173] ------------[ cut here ]------------
[ 9.569700][ T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: python3/173
[ 9.570092][ T173] Modules linked in: netdevsim
[ 9.570354][ T173] CPU: 0 UID: 0 PID: 173 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.570695][ T173] Tainted: [W]=WARN
[ 9.570834][ T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.571110][ T173] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.571328][ 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
[ 9.571934][ T173] RSP: 0018:ffa0000000827500 EFLAGS: 00010286
[ 9.572155][ T173] RAX: 00000000ffffffa6 RBX: ff11000009bd01c0 RCX: 1ff4000000104e66
[ 9.572403][ T173] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009bd0270
[ 9.572654][ T173] RBP: ff1100000ba72000 R08: 1fe220000137a04f R09: ff1100000c39af48
[ 9.572913][ T173] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.573171][ T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ba72000
[ 9.573426][ T173] FS: 00007ff8971cd400(0000) GS:ff11000078179000(0000) knlGS:0000000000000000
[ 9.573723][ T173] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.573946][ T173] CR2: 0000555f49541fa8 CR3: 000000000c68d005 CR4: 0000000000771ef0
[ 9.574206][ T173] PKRU: 55555554
[ 9.574334][ T173] Call Trace:
[ 9.574460][ T173]
[ 9.574548][ T173] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.574719][ T173] rtmsg_ifinfo+0x5c/0xb0
[ 9.574856][ T173] register_netdevice+0x1526/0x1bc0
[ 9.575034][ T173] ? unregister_netdevice_queue+0x470/0x470
[ 9.575244][ T173] ? __debugfs_create_file+0x2cf/0x3c0
[ 9.575418][ T173] nsim_init_netdevsim+0x80e/0xcb0 [netdevsim]
[ 9.575633][ T173] nsim_create+0x45b/0x5b0 [netdevsim]
[ 9.575812][ T173] __nsim_dev_port_add+0x30b/0x7a0 [netdevsim]
[ 9.576027][ T173] ? add_timer_on+0x580/0x580
[ 9.576197][ T173] ? nsim_dev_get_vfs+0x90/0x90 [netdevsim]
[ 9.576418][ T173] ? is_module_address+0x68/0x110
[ 9.576586][ T173] ? static_obj+0x5d/0x90
[ 9.576713][ T173] ? mark_held_locks+0x40/0x70
[ 9.576894][ T173] ? nsim_dev_hwstats_init+0x3a4/0x4d0 [netdevsim]
[ 9.577115][ T173] nsim_drv_probe+0x59e/0x8d0 [netdevsim]
[ 9.577285][ T173] call_driver_probe+0x61/0x1c0
[ 9.577453][ T173] really_probe+0x199/0x760
[ 9.577620][ T173] ? driver_probe_device+0x130/0x130
[ 9.577795][ T173] __driver_probe_device+0x1dc/0x430
[ 9.577970][ T173] driver_probe_device+0x4a/0x130
[ 9.578139][ T173] __device_attach_driver+0x16d/0x2a0
[ 9.578306][ T173] bus_for_each_drv+0x135/0x1e0
[ 9.578474][ T173] ? bus_find_device_reverse+0x1c0/0x1c0
[ 9.578644][ T173] __device_attach+0x1a6/0x410
[ 9.578819][ T173] ? __rwlock_init+0x150/0x150
[ 9.578993][ T173] ? __driver_attach_async_helper+0x2a0/0x2a0
[ 9.579203][ T173] ? do_raw_spin_unlock+0x59/0x250
[ 9.579370][ T173] ? _raw_spin_unlock+0x2d/0x50
[ 9.579539][ T173] device_initial_probe+0x8b/0xc0
[ 9.579705][ T173] bus_probe_device+0x63/0x160
[ 9.579883][ T173] device_add+0xb16/0x1130
[ 9.580056][ T173] ? __fw_devlink_link_to_consumers.isra.0+0x2d0/0x2d0
[ 9.580267][ T173] ? __init_waitqueue_head+0xcb/0x160
[ 9.580435][ T173] ? pm_runtime_init+0x323/0x3f0
[ 9.580604][ T173] new_device_store+0x3d4/0x730 [netdevsim]
[ 9.580820][ T173] ? __lock_release.isra.0+0x6b/0x1a0
[ 9.580992][ T173] ? new_port_store+0x1a0/0x1a0 [netdevsim]
[ 9.581203][ T173] ? sysfs_file_kobj+0xb3/0x1e0
[ 9.581375][ T173] ? sysfs_file_kobj+0xbd/0x1e0
[ 9.581544][ T173] ? sysfs_file_ops+0x140/0x140
[ 9.581713][ T173] kernfs_fop_write_iter+0x335/0x510
[ 9.581891][ T173] ? kernfs_ops+0xf0/0xf0
[ 9.582026][ T173] new_sync_write+0x333/0x750
[ 9.582197][ T173] ? __lock_acquire+0x508/0xc10
[ 9.582365][ T173] ? new_sync_read+0x740/0x740
[ 9.582533][ T173] ? lock_acquire.part.0+0xbc/0x260
[ 9.582700][ T173] ? ksys_write+0x116/0x250
[ 9.582882][ T173] vfs_write+0x6a4/0xc10
[ 9.583015][ T173] ksys_write+0x116/0x250
[ 9.583145][ T173] ? __ia32_sys_read+0xc0/0xc0
[ 9.583327][ T173] ? kernfs_fop_llseek+0x160/0x1f0
[ 9.583498][ T173] ? rcu_is_watching+0x15/0xd0
[ 9.583670][ T173] do_syscall_64+0x117/0xfc0
[ 9.583850][ T173] ? irq_exit_rcu+0x1a/0x30
[ 9.584024][ T173] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.584235][ T173] RIP: 0033:0x7ff89735508e
[ 9.584410][ 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
[ 9.585013][ T173] RSP: 002b:00007ffc7e304290 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9.585268][ T173] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007ff89735508e
[ 9.585521][ T173] RDX: 0000000000000009 RSI: 00005621b0f8f980 RDI: 0000000000000006
[ 9.585778][ T173] RBP: 00007ffc7e3042a0 R08: 0000000000000000 R09: 0000000000000000
[ 9.586035][ T173] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ff8971cd390
[ 9.586287][ T173] R13: 00005621b0f8f980 R14: 0000000000000006 R15: 00007ff8971590d0
[ 9.586544][ T173]
[ 9.586671][ T173] irq event stamp: 320761
[ 9.586807][ T173] hardirqs last enabled at (320769): [] __up_console_sem+0x5a/0x70
[ 9.587104][ T173] hardirqs last disabled at (320778): [] __up_console_sem+0x3f/0x70
[ 9.587393][ T173] softirqs last enabled at (320092): [] handle_softirqs+0x611/0x940
[ 9.587683][ T173] softirqs last disabled at (320059): [] __irq_exit_rcu+0x103/0x1c0
[ 9.587986][ T173] ---[ end trace 0000000000000000 ]---
[ 10.173692][ T12] ------------[ cut here ]------------
[ 10.173929][ T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: kworker/u16:0/12
[ 10.174231][ T12] Modules linked in: netdevsim
[ 10.174394][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 10.174715][ T12] Tainted: [W]=WARN
[ 10.174832][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.174999][ T12] Workqueue: netns cleanup_net
[ 10.175144][ T12] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 10.175310][ 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
[ 10.175783][ T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[ 10.175940][ T12] RAX: 00000000ffffffa6 RBX: ff1100000c51c4c0 RCX: 1ff4000000018ed5
[ 10.176132][ T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c51c570
[ 10.176322][ T12] RBP: ff110000057f1000 R08: 1fe22000018a38af R09: ff11000001b051d0
[ 10.176507][ T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 10.176695][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 10.176893][ T12] FS: 0000000000000000(0000) GS:ff11000078179000(0000) knlGS:0000000000000000
[ 10.177132][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 10.177289][ T12] CR2: 00007f02026aa2a0 CR3: 0000000020f39006 CR4: 0000000000771ef0
[ 10.177476][ T12] PKRU: 55555554
[ 10.177575][ T12] Call Trace:
[ 10.177673][ T12]
[ 10.177745][ T12] unregister_netdevice_many_notify+0xce3/0x1b30
[ 10.177913][ T12] ? unregister_netdevice_queued+0x80/0x80
[ 10.178075][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.178213][ T12] default_device_exit_batch+0x38b/0x600
[ 10.178341][ T12] ? unregister_netdev+0x60/0x60
[ 10.178465][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.178590][ T12] ops_undo_list+0x2ce/0x8f0
[ 10.178717][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 10.178849][ T12] ? __lock_release.isra.0+0x6b/0x1a0
[ 10.178985][ T12] cleanup_net+0x431/0x890
[ 10.179112][ T12] ? net_passive_dec+0x1c0/0x1c0
[ 10.179240][ T12] ? process_one_work+0xdb7/0x1410
[ 10.179368][ T12] ? lock_acquire+0x134/0x160
[ 10.179491][ T12] ? rcu_is_watching+0x15/0xd0
[ 10.179617][ T12] process_one_work+0xdf8/0x1410
[ 10.180011][ T12] ? pwq_dec_nr_in_flight+0x710/0x710
[ 10.180138][ T12] ? lock_acquire.part.0+0xbc/0x260
[ 10.180267][ T12] worker_thread+0x4f1/0xd60
[ 10.180394][ T12] ? rescuer_thread+0x1320/0x1320
[ 10.180519][ T12] kthread+0x367/0x460
[ 10.180612][ T12] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 10.180774][ T12] ? kthread_affine_node+0x330/0x330
[ 10.180899][ T12] ret_from_fork+0x474/0x6b0
[ 10.181029][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 10.181187][ T12] ? __switch_to+0x5a3/0xe00
[ 10.181313][ T12] ? kthread_affine_node+0x330/0x330
[ 10.181441][ T12] ret_from_fork_asm+0x11/0x20
[ 10.181572][ T12]
[ 10.181665][ T12] irq event stamp: 9205
[ 10.181767][ T12] hardirqs last enabled at (9213): [] __up_console_sem+0x5a/0x70
[ 10.181990][ T12] hardirqs last disabled at (9222): [] __up_console_sem+0x3f/0x70
[ 10.182208][ T12] softirqs last enabled at (8928): [] handle_softirqs+0x611/0x940
[ 10.182425][ T12] softirqs last disabled at (8923): [] __irq_exit_rcu+0x103/0x1c0
[ 10.182640][ T12] ---[ end trace 0000000000000000 ]---