[ 9.628220][ T174] ------------[ cut here ]------------
[ 9.628507][ T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/174
[ 9.628822][ T174] Modules linked in:
[ 9.629017][ T174] CPU: 2 UID: 0 PID: 174 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.629356][ T174] Tainted: [W]=WARN
[ 9.629511][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.629793][ T174] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.630027][ 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
[ 9.630576][ T174] RSP: 0018:ffa0000000867aa8 EFLAGS: 00010286
[ 9.630856][ T174] RAX: 00000000ffffffa6 RBX: ff1100000b0eaac0 RCX: 1ff400000010cf1b
[ 9.631115][ T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b0eab70
[ 9.631390][ T174] RBP: ff1100000593c000 R08: 1fe220000161d56f R09: ff1100000a3a5180
[ 9.631730][ T174] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.631984][ T174] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000593c000
[ 9.632249][ T174] FS: 00007f2706da7840(0000) GS:ff1100007d479000(0000) knlGS:0000000000000000
[ 9.632548][ T174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.632781][ T174] CR2: 0000000000479648 CR3: 000000000caf2003 CR4: 0000000000771ef0
[ 9.633039][ T174] PKRU: 55555554
[ 9.633193][ T174] Call Trace:
[ 9.633364][ T174]
[ 9.633488][ T174] ? ip6_route_dev_notify+0x250/0x380
[ 9.633693][ T174] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.633882][ T174] ? notifier_call_chain+0xb0/0x320
[ 9.634073][ T174] rtmsg_ifinfo+0x5c/0xb0
[ 9.634246][ T174] register_netdevice+0x1526/0x1bc0
[ 9.634449][ T174] ? unregister_netdevice_queue+0x470/0x470
[ 9.634694][ T174] ? alloc_netdev_mqs+0xeda/0x1430
[ 9.634889][ T174] register_netdev+0x23/0x40
[ 9.635107][ T174] loopback_net_init+0x7d/0x150
[ 9.635311][ T174] ops_init+0x187/0x560
[ 9.635471][ T174] setup_net+0x11b/0x3b0
[ 9.635641][ T174] ? unregister_pernet_device+0x80/0x80
[ 9.635827][ T174] ? lockdep_init_map_type+0x5d/0x250
[ 9.636016][ T174] ? mutex_init_lockdep+0xf6/0x120
[ 9.636213][ T174] copy_net_ns+0x2fd/0x450
[ 9.636411][ T174] create_new_namespaces+0x371/0xa10
[ 9.636616][ T174] unshare_nsproxy_namespaces+0xa5/0x150
[ 9.636803][ T174] ksys_unshare+0x47e/0x8c0
[ 9.636998][ T174] ? walk_process_tree+0x350/0x350
[ 9.637189][ T174] ? __ia32_sys_open+0x1b0/0x1b0
[ 9.637397][ T174] __x64_sys_unshare+0x34/0x50
[ 9.637598][ T174] ? do_syscall_64+0x82/0xfc0
[ 9.637785][ T174] do_syscall_64+0x117/0xfc0
[ 9.637971][ T174] ? trace_hardirqs_off+0xd/0x30
[ 9.638159][ T174] ? exc_page_fault+0xee/0x100
[ 9.638358][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.638596][ T174] RIP: 0033:0x7f2707069bcb
[ 9.638789][ 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
[ 9.639330][ T174] RSP: 002b:00007ffdc8202028 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[ 9.639604][ T174] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f2707069bcb
[ 9.639856][ T174] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 9.640139][ T174] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 9.640410][ T174] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdc8204250
[ 9.640673][ T174] R13: 0000000000000001 R14: 00007f2706da76f8 R15: 00007ffdc820486a
[ 9.640937][ T174]
[ 9.641090][ T174] irq event stamp: 24905
[ 9.641249][ T174] hardirqs last enabled at (24915): [] __up_console_sem+0x5a/0x70
[ 9.641561][ T174] hardirqs last disabled at (24924): [] __up_console_sem+0x3f/0x70
[ 9.641871][ T174] softirqs last enabled at (24330): [] handle_softirqs+0x611/0x940
[ 9.642168][ T174] softirqs last disabled at (24317): [] __irq_exit_rcu+0x103/0x1c0
[ 9.642470][ T174] ---[ end trace 0000000000000000 ]---
[ 9.743538][ T173] ------------[ cut here ]------------
[ 9.743799][ T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: python3/173
[ 9.744191][ T173] Modules linked in: netdevsim
[ 9.744412][ T173] CPU: 0 UID: 0 PID: 173 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.744861][ T173] Tainted: [W]=WARN
[ 9.745006][ T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.745317][ T173] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.745545][ 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
[ 9.746247][ T173] RSP: 0018:ffa0000000857500 EFLAGS: 00010286
[ 9.746469][ T173] RAX: 00000000ffffffa6 RBX: ff1100000b246dc0 RCX: 1ff400000010ae66
[ 9.746799][ T173] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b246e70
[ 9.747059][ T173] RBP: ff1100000c91a000 R08: 1fe2200001648dcf R09: ff1100000a3a2f48
[ 9.747330][ T173] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.747666][ T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c91a000
[ 9.747940][ T173] FS: 00007f3345f57400(0000) GS:ff1100007d379000(0000) knlGS:0000000000000000
[ 9.748255][ T173] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.748481][ T173] CR2: 00005636d63de850 CR3: 0000000008dfe002 CR4: 0000000000771ef0
[ 9.748817][ T173] PKRU: 55555554
[ 9.748948][ T173] Call Trace:
[ 9.749078][ T173]
[ 9.749169][ T173] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.749354][ T173] rtmsg_ifinfo+0x5c/0xb0
[ 9.749487][ T173] register_netdevice+0x1526/0x1bc0
[ 9.749739][ T173] ? unregister_netdevice_queue+0x470/0x470
[ 9.749955][ T173] ? __debugfs_create_file+0x2cf/0x3c0
[ 9.750136][ T173] nsim_init_netdevsim+0x80e/0xcb0 [netdevsim]
[ 9.750397][ T173] nsim_create+0x45b/0x5b0 [netdevsim]
[ 9.750671][ T173] __nsim_dev_port_add+0x30b/0x7a0 [netdevsim]
[ 9.750906][ T173] ? add_timer_on+0x580/0x580
[ 9.751084][ T173] ? nsim_dev_get_vfs+0x90/0x90 [netdevsim]
[ 9.751317][ T173] ? is_module_address+0x68/0x110
[ 9.751499][ T173] ? static_obj+0x5d/0x90
[ 9.751728][ T173] ? mark_held_locks+0x40/0x70
[ 9.751911][ T173] ? nsim_dev_hwstats_init+0x3a4/0x4d0 [netdevsim]
[ 9.752137][ T173] nsim_drv_probe+0x59e/0x8d0 [netdevsim]
[ 9.752324][ T173] call_driver_probe+0x61/0x1c0
[ 9.752499][ T173] really_probe+0x199/0x760
[ 9.752790][ T173] ? driver_probe_device+0x130/0x130
[ 9.752985][ T173] __driver_probe_device+0x1dc/0x430
[ 9.753168][ T173] driver_probe_device+0x4a/0x130
[ 9.753350][ T173] __device_attach_driver+0x16d/0x2a0
[ 9.753528][ T173] bus_for_each_drv+0x135/0x1e0
[ 9.754128][ T173] ? bus_find_device_reverse+0x1c0/0x1c0
[ 9.754310][ T173] __device_attach+0x1a6/0x410
[ 9.754496][ T173] ? __rwlock_init+0x150/0x150
[ 9.754834][ T173] ? __driver_attach_async_helper+0x2a0/0x2a0
[ 9.755048][ T173] ? do_raw_spin_unlock+0x59/0x250
[ 9.755231][ T173] ? _raw_spin_unlock+0x2d/0x50
[ 9.755410][ T173] device_initial_probe+0x8b/0xc0
[ 9.755711][ T173] bus_probe_device+0x63/0x160
[ 9.755887][ T173] device_add+0xb16/0x1130
[ 9.756060][ T173] ? __fw_devlink_link_to_consumers.isra.0+0x2d0/0x2d0
[ 9.756285][ T173] ? __init_waitqueue_head+0xcb/0x160
[ 9.756460][ T173] ? pm_runtime_init+0x323/0x3f0
[ 9.756801][ T173] new_device_store+0x3d4/0x730 [netdevsim]
[ 9.757022][ T173] ? __lock_release.isra.0+0x6b/0x1a0
[ 9.757213][ T173] ? new_port_store+0x1a0/0x1a0 [netdevsim]
[ 9.757433][ T173] ? sysfs_file_kobj+0xb3/0x1e0
[ 9.757750][ T173] ? sysfs_file_kobj+0xbd/0x1e0
[ 9.757926][ T173] ? sysfs_file_ops+0x140/0x140
[ 9.758097][ T173] kernfs_fop_write_iter+0x335/0x510
[ 9.758276][ T173] ? kernfs_ops+0xf0/0xf0
[ 9.758413][ T173] new_sync_write+0x333/0x750
[ 9.758735][ T173] ? __lock_acquire+0x508/0xc10
[ 9.758914][ T173] ? new_sync_read+0x740/0x740
[ 9.759086][ T173] ? lock_acquire.part.0+0xbc/0x260
[ 9.759284][ T173] ? ksys_write+0x116/0x250
[ 9.759469][ T173] vfs_write+0x6a4/0xc10
[ 9.759742][ T173] ksys_write+0x116/0x250
[ 9.759872][ T173] ? __ia32_sys_read+0xc0/0xc0
[ 9.760046][ T173] ? kernfs_fop_llseek+0x160/0x1f0
[ 9.760224][ T173] ? rcu_is_watching+0x15/0xd0
[ 9.760424][ T173] do_syscall_64+0x117/0xfc0
[ 9.760738][ T173] ? trace_hardirqs_off+0xd/0x30
[ 9.760912][ T173] ? exc_page_fault+0xee/0x100
[ 9.761085][ T173] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.761330][ T173] RIP: 0033:0x7f33460df08e
[ 9.761512][ 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
[ 9.762278][ T173] RSP: 002b:00007ffec0e869b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9.762543][ T173] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f33460df08e
[ 9.762944][ T173] RDX: 0000000000000008 RSI: 0000557f8ad7a7c0 RDI: 0000000000000006
[ 9.763204][ T173] RBP: 00007ffec0e869c0 R08: 0000000000000000 R09: 0000000000000000
[ 9.763761][ T173] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f3345f57390
[ 9.764272][ T173] R13: 0000557f8ad7a7c0 R14: 0000000000000006 R15: 00007f3345ee50d0
[ 9.764544][ T173]
[ 9.764823][ T173] irq event stamp: 344019
[ 9.764960][ T173] hardirqs last enabled at (344027): [] __up_console_sem+0x5a/0x70
[ 9.765424][ T173] hardirqs last disabled at (344034): [] __up_console_sem+0x3f/0x70
[ 9.765863][ T173] softirqs last enabled at (344214): [] handle_softirqs+0x611/0x940
[ 9.766163][ T173] softirqs last disabled at (344043): [] __irq_exit_rcu+0x103/0x1c0
[ 9.766489][ T173] ---[ end trace 0000000000000000 ]---
[ 10.321102][ T12] ------------[ cut here ]------------
[ 10.322838][ T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: kworker/u16:0/12
[ 10.323127][ T12] Modules linked in: netdevsim
[ 10.323316][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 10.323752][ T12] Tainted: [W]=WARN
[ 10.323849][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.324006][ T12] Workqueue: netns cleanup_net
[ 10.324153][ T12] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 10.324336][ 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
[ 10.326839][ T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[ 10.327045][ T12] RAX: 00000000ffffffa6 RBX: ff1100000ca10940 RCX: 1ff4000000018ed5
[ 10.327241][ T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000ca109f0
[ 10.327433][ T12] RBP: ff1100000593c000 R08: 1fe220000194213f R09: ff11000001b051d0
[ 10.327634][ T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 10.327821][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 10.352958][ T12] FS: 0000000000000000(0000) GS:ff1100007d379000(0000) knlGS:0000000000000000
[ 10.353235][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 10.353401][ T12] CR2: 00007f334423d530 CR3: 0000000010d39001 CR4: 0000000000771ef0
[ 10.353719][ T12] PKRU: 55555554
[ 10.353821][ T12] Call Trace:
[ 10.353917][ T12]
[ 10.353985][ T12] unregister_netdevice_many_notify+0xce3/0x1b30
[ 10.354153][ T12] ? unregister_netdevice_queued+0x80/0x80
[ 10.354324][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.354452][ T12] default_device_exit_batch+0x38b/0x600
[ 10.354578][ T12] ? unregister_netdev+0x60/0x60
[ 10.364880][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.365119][ T12] ops_undo_list+0x2ce/0x8f0
[ 10.365257][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 10.365466][ T12] ? __lock_release.isra.0+0x6b/0x1a0
[ 10.365611][ T12] cleanup_net+0x431/0x890
[ 10.365738][ T12] ? net_passive_dec+0x1c0/0x1c0
[ 10.365866][ T12] ? process_one_work+0xdb7/0x1410
[ 10.365996][ T12] ? lock_acquire+0x134/0x160
[ 10.366144][ T12] ? rcu_is_watching+0x15/0xd0
[ 10.366280][ T12] process_one_work+0xdf8/0x1410
[ 10.366413][ T12] ? pwq_dec_nr_in_flight+0x710/0x710
[ 10.366536][ T12] ? lock_acquire.part.0+0xbc/0x260
[ 10.366676][ T12] worker_thread+0x4f1/0xd60
[ 10.366804][ T12] ? rescuer_thread+0x1320/0x1320
[ 10.366930][ T12] kthread+0x367/0x460
[ 10.367030][ T12] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 10.367268][ T12] ? kthread_affine_node+0x330/0x330
[ 10.367396][ T12] ret_from_fork+0x474/0x6b0
[ 10.367523][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 10.367763][ T12] ? __switch_to+0x5a3/0xe00
[ 10.367889][ T12] ? kthread_affine_node+0x330/0x330
[ 10.368014][ T12] ret_from_fork_asm+0x11/0x20
[ 10.368154][ T12]
[ 10.368257][ T12] irq event stamp: 4635
[ 10.368356][ T12] hardirqs last enabled at (4643): [] __up_console_sem+0x5a/0x70
[ 10.368573][ T12] hardirqs last disabled at (4650): [] __up_console_sem+0x3f/0x70
[ 10.368795][ T12] softirqs last enabled at (4032): [] handle_softirqs+0x611/0x940
[ 10.369014][ T12] softirqs last disabled at (4027): [] __irq_exit_rcu+0x103/0x1c0
[ 10.369236][ T12] ---[ end trace 0000000000000000 ]---