[ 8.935767][ T176] ------------[ cut here ]------------
[ 8.935999][ T176] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/176
[ 8.936228][ T176] Modules linked in:
[ 8.936380][ T176] CPU: 3 UID: 0 PID: 176 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 8.936664][ T176] Tainted: [W]=WARN
[ 8.936760][ T176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8.936950][ T176] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 8.937119][ T176] 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
[ 8.937579][ T176] RSP: 0018:ffa0000000817aa8 EFLAGS: 00010286
[ 8.937739][ T176] RAX: 00000000ffffffa6 RBX: ff1100000c7acf40 RCX: 1ff4000000102f1b
[ 8.937935][ T176] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c7acff0
[ 8.938125][ T176] RBP: ff11000009e6c000 R08: 1fe22000018f59ff R09: ff1100000d012e80
[ 8.938324][ T176] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 8.938519][ T176] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009e6c000
[ 8.938713][ T176] FS: 00007f6639f5e840(0000) GS:ff1100009f6f9000(0000) knlGS:0000000000000000
[ 8.938941][ T176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.939109][ T176] CR2: 0000000000479648 CR3: 0000000008e89001 CR4: 0000000000771ef0
[ 8.939300][ T176] PKRU: 55555554
[ 8.939396][ T176] Call Trace:
[ 8.939497][ T176]
[ 8.939565][ T176] ? ip6_route_dev_notify+0x250/0x380
[ 8.939695][ T176] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 8.939822][ T176] ? notifier_call_chain+0xb0/0x320
[ 8.939964][ T176] rtmsg_ifinfo+0x5c/0xb0
[ 8.940061][ T176] register_netdevice+0x1526/0x1bc0
[ 8.940191][ T176] ? unregister_netdevice_queue+0x470/0x470
[ 8.940348][ T176] ? alloc_netdev_mqs+0xeda/0x1430
[ 8.940477][ T176] register_netdev+0x23/0x40
[ 8.940609][ T176] loopback_net_init+0x7d/0x150
[ 8.940737][ T176] ops_init+0x187/0x560
[ 8.940846][ T176] setup_net+0x11b/0x3b0
[ 8.940942][ T176] ? unregister_pernet_device+0x80/0x80
[ 8.941067][ T176] ? lockdep_init_map_type+0x5d/0x250
[ 8.941196][ T176] ? mutex_init_lockdep+0xf6/0x120
[ 8.941323][ T176] copy_net_ns+0x2fd/0x450
[ 8.941450][ T176] create_new_namespaces+0x371/0xa10
[ 8.941584][ T176] unshare_nsproxy_namespaces+0xa5/0x150
[ 8.941718][ T176] ksys_unshare+0x47e/0x8c0
[ 8.941848][ T176] ? walk_process_tree+0x350/0x350
[ 8.941976][ T176] ? __ia32_sys_open+0x1b0/0x1b0
[ 8.942106][ T176] __x64_sys_unshare+0x34/0x50
[ 8.942233][ T176] ? do_syscall_64+0x82/0xfc0
[ 8.942360][ T176] do_syscall_64+0x117/0xfc0
[ 8.942495][ T176] ? trace_hardirqs_off+0xd/0x30
[ 8.942627][ T176] ? exc_page_fault+0xee/0x100
[ 8.942757][ T176] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 8.942920][ T176] RIP: 0033:0x7f663a220bcb
[ 8.943053][ T176] 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
[ 8.943510][ T176] RSP: 002b:00007ffd5079a2c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[ 8.943702][ T176] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f663a220bcb
[ 8.943896][ T176] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 8.944085][ T176] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 8.944279][ T176] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5079c4f0
[ 8.944468][ T176] R13: 0000000000000001 R14: 00007f6639f5e6f8 R15: 00007ffd5079d86a
[ 8.944668][ T176]
[ 8.944763][ T176] irq event stamp: 19277
[ 8.944865][ T176] hardirqs last enabled at (19287): [] __up_console_sem+0x5a/0x70
[ 8.945093][ T176] hardirqs last disabled at (19294): [] __up_console_sem+0x3f/0x70
[ 8.945404][ T176] softirqs last enabled at (18770): [] __alloc_skb+0x4c5/0x5f0
[ 8.945624][ T176] softirqs last disabled at (18768): [] __alloc_skb+0x4c5/0x5f0
[ 8.945927][ T176] ---[ end trace 0000000000000000 ]---
[ 9.081265][ T175] ------------[ cut here ]------------
[ 9.081577][ T175] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: python3/175
[ 9.081979][ T175] Modules linked in: netdevsim
[ 9.082318][ T175] CPU: 2 UID: 0 PID: 175 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.082707][ T175] Tainted: [W]=WARN
[ 9.082931][ T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.083223][ T175] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.083506][ 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
[ 9.084145][ T175] RSP: 0018:ffa00000005b7500 EFLAGS: 00010286
[ 9.084406][ T175] RAX: 00000000ffffffa6 RBX: ff1100000b6267c0 RCX: 1ff40000000b6e66
[ 9.084706][ T175] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b626870
[ 9.085020][ T175] RBP: ff1100000d0ca000 R08: 1fe22000016c4d0f R09: ff1100000d010c48
[ 9.085312][ T175] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.085640][ T175] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d0ca000
[ 9.085948][ T175] FS: 00007ff195797400(0000) GS:ff1100009f679000(0000) knlGS:0000000000000000
[ 9.086286][ T175] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.086552][ T175] CR2: 00007ff195b980a1 CR3: 000000000ad02001 CR4: 0000000000771ef0
[ 9.086859][ T175] PKRU: 55555554
[ 9.087028][ T175] Call Trace:
[ 9.087196][ T175]
[ 9.087328][ T175] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.087547][ T175] rtmsg_ifinfo+0x5c/0xb0
[ 9.087718][ T175] register_netdevice+0x1526/0x1bc0
[ 9.087946][ T175] ? unregister_netdevice_queue+0x470/0x470
[ 9.088195][ T175] ? __debugfs_create_file+0x2cf/0x3c0
[ 9.088413][ T175] nsim_init_netdevsim+0x80e/0xcb0 [netdevsim]
[ 9.088679][ T175] nsim_create+0x45b/0x5b0 [netdevsim]
[ 9.088910][ T175] __nsim_dev_port_add+0x30b/0x7a0 [netdevsim]
[ 9.089165][ T175] ? add_timer_on+0x580/0x580
[ 9.089379][ T175] ? nsim_dev_get_vfs+0x90/0x90 [netdevsim]
[ 9.089657][ T175] ? is_module_address+0x68/0x110
[ 9.089882][ T175] ? static_obj+0x5d/0x90
[ 9.090053][ T175] ? mark_held_locks+0x40/0x70
[ 9.090266][ T175] ? nsim_dev_hwstats_init+0x3a4/0x4d0 [netdevsim]
[ 9.090529][ T175] nsim_drv_probe+0x59e/0x8d0 [netdevsim]
[ 9.090742][ T175] call_driver_probe+0x61/0x1c0
[ 9.090965][ T175] really_probe+0x199/0x760
[ 9.091178][ T175] ? driver_probe_device+0x130/0x130
[ 9.091385][ T175] __driver_probe_device+0x1dc/0x430
[ 9.091615][ T175] driver_probe_device+0x4a/0x130
[ 9.091885][ T175] __device_attach_driver+0x16d/0x2a0
[ 9.092098][ T175] bus_for_each_drv+0x135/0x1e0
[ 9.092306][ T175] ? bus_find_device_reverse+0x1c0/0x1c0
[ 9.092527][ T175] __device_attach+0x1a6/0x410
[ 9.092737][ T175] ? __rwlock_init+0x150/0x150
[ 9.092960][ T175] ? __driver_attach_async_helper+0x2a0/0x2a0
[ 9.093209][ T175] ? do_raw_spin_unlock+0x59/0x250
[ 9.093419][ T175] ? _raw_spin_unlock+0x2d/0x50
[ 9.093636][ T175] device_initial_probe+0x8b/0xc0
[ 9.093859][ T175] bus_probe_device+0x63/0x160
[ 9.094070][ T175] device_add+0xb16/0x1130
[ 9.094279][ T175] ? __fw_devlink_link_to_consumers.isra.0+0x2d0/0x2d0
[ 9.094537][ T175] ? __init_waitqueue_head+0xcb/0x160
[ 9.094744][ T175] ? pm_runtime_init+0x323/0x3f0
[ 9.094968][ T175] new_device_store+0x3d4/0x730 [netdevsim]
[ 9.095241][ T175] ? __lock_release.isra.0+0x6b/0x1a0
[ 9.095450][ T175] ? new_port_store+0x1a0/0x1a0 [netdevsim]
[ 9.095705][ T175] ? sysfs_file_kobj+0xb3/0x1e0
[ 9.095928][ T175] ? sysfs_file_kobj+0xbd/0x1e0
[ 9.096138][ T175] ? sysfs_file_ops+0x140/0x140
[ 9.096346][ T175] kernfs_fop_write_iter+0x335/0x510
[ 9.096563][ T175] ? kernfs_ops+0xf0/0xf0
[ 9.096731][ T175] new_sync_write+0x333/0x750
[ 9.096953][ T175] ? __lock_acquire+0x508/0xc10
[ 9.097183][ T175] ? new_sync_read+0x740/0x740
[ 9.097396][ T175] ? lock_acquire.part.0+0xbc/0x260
[ 9.097615][ T175] ? ksys_write+0x116/0x250
[ 9.097825][ T175] vfs_write+0x6a4/0xc10
[ 9.098008][ T175] ksys_write+0x116/0x250
[ 9.098176][ T175] ? __ia32_sys_read+0xc0/0xc0
[ 9.098384][ T175] ? kernfs_fop_llseek+0x160/0x1f0
[ 9.098601][ T175] ? rcu_is_watching+0x15/0xd0
[ 9.098811][ T175] do_syscall_64+0x117/0xfc0
[ 9.099032][ T175] ? trace_hardirqs_off+0xd/0x30
[ 9.099244][ T175] ? exc_page_fault+0xee/0x100
[ 9.099454][ T175] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.099703][ T175] RIP: 0033:0x7ff19591f08e
[ 9.099927][ T175] 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
[ 9.100563][ T175] RSP: 002b:00007ffe16c04530 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9.100867][ T175] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007ff19591f08e
[ 9.101153][ T175] RDX: 0000000000000009 RSI: 000055993c2307c0 RDI: 0000000000000006
[ 9.101436][ T175] RBP: 00007ffe16c04540 R08: 0000000000000000 R09: 0000000000000000
[ 9.101748][ T175] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ff195797390
[ 9.102046][ T175] R13: 000055993c2307c0 R14: 0000000000000006 R15: 00007ff1957250d0
[ 9.102335][ T175]
[ 9.102509][ T175] irq event stamp: 328171
[ 9.102677][ T175] hardirqs last enabled at (328181): [] __up_console_sem+0x5a/0x70
[ 9.103013][ T175] hardirqs last disabled at (328192): [] __up_console_sem+0x3f/0x70
[ 9.103340][ T175] softirqs last enabled at (327388): [] handle_softirqs+0x611/0x940
[ 9.103669][ T175] softirqs last disabled at (327369): [] __irq_exit_rcu+0x103/0x1c0
[ 9.103998][ T175] ---[ end trace 0000000000000000 ]---
[ 9.696977][ T12] ------------[ cut here ]------------
[ 9.697185][ T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: kworker/u16:0/12
[ 9.697589][ T12] Modules linked in: netdevsim
[ 9.697744][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.698139][ T12] Tainted: [W]=WARN
[ 9.698281][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.698471][ T12] Workqueue: netns cleanup_net
[ 9.698607][ T12] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.698848][ 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
[ 9.699310][ T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[ 9.699561][ T12] RAX: 00000000ffffffa6 RBX: ff1100000965f0c0 RCX: 1ff4000000018ed5
[ 9.699760][ T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000965f170
[ 9.700020][ T12] RBP: ff11000009e6c000 R08: 1fe22000012cbe2f R09: ff11000001b051d0
[ 9.700243][ T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.700463][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 9.700739][ T12] FS: 0000000000000000(0000) GS:ff1100009f5f9000(0000) knlGS:0000000000000000
[ 9.700997][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.701152][ T12] CR2: 00007f363bb69620 CR3: 000000002b939006 CR4: 0000000000771ef0
[ 9.701444][ T12] PKRU: 55555554
[ 9.701548][ T12] Call Trace:
[ 9.701637][ T12]
[ 9.701700][ T12] unregister_netdevice_many_notify+0xce3/0x1b30
[ 9.701885][ T12] ? unregister_netdevice_queued+0x80/0x80
[ 9.702066][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 9.702197][ T12] default_device_exit_batch+0x38b/0x600
[ 9.702340][ T12] ? unregister_netdev+0x60/0x60
[ 9.702555][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 9.702683][ T12] ops_undo_list+0x2ce/0x8f0
[ 9.702849][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 9.702981][ T12] ? __lock_release.isra.0+0x6b/0x1a0
[ 9.703183][ T12] cleanup_net+0x431/0x890
[ 9.703339][ T12] ? net_passive_dec+0x1c0/0x1c0
[ 9.703465][ T12] ? process_one_work+0xdb7/0x1410
[ 9.703606][ T12] ? lock_acquire+0x134/0x160
[ 9.703816][ T12] ? rcu_is_watching+0x15/0xd0
[ 9.703963][ T12] process_one_work+0xdf8/0x1410
[ 9.704114][ T12] ? pwq_dec_nr_in_flight+0x710/0x710
[ 9.704244][ T12] ? lock_acquire.part.0+0xbc/0x260
[ 9.704438][ T12] worker_thread+0x4f1/0xd60
[ 9.704574][ T12] ? rescuer_thread+0x1320/0x1320
[ 9.704730][ T12] kthread+0x367/0x460
[ 9.704820][ T12] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 9.705057][ T12] ? kthread_affine_node+0x330/0x330
[ 9.705208][ T12] ret_from_fork+0x474/0x6b0
[ 9.705358][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 9.705513][ T12] ? __switch_to+0x5a3/0xe00
[ 9.705728][ T12] ? kthread_affine_node+0x330/0x330
[ 9.705860][ T12] ret_from_fork_asm+0x11/0x20
[ 9.706002][ T12]
[ 9.706121][ T12] irq event stamp: 2453
[ 9.706299][ T12] hardirqs last enabled at (2461): [] __up_console_sem+0x5a/0x70
[ 9.706528][ T12] hardirqs last disabled at (2468): [] __up_console_sem+0x3f/0x70
[ 9.706767][ T12] softirqs last enabled at (2060): [] handle_softirqs+0x611/0x940
[ 9.707089][ T12] softirqs last disabled at (2055): [] __irq_exit_rcu+0x103/0x1c0
[ 9.707333][ T12] ---[ end trace 0000000000000000 ]---