[ 9.660456][ T174] ------------[ cut here ]------------
[ 9.660717][ T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/174
[ 9.661396][ T174] Modules linked in:
[ 9.661583][ T174] CPU: 2 UID: 0 PID: 174 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.661931][ T174] Tainted: [W]=WARN
[ 9.662150][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.662379][ T174] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.662606][ 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
[ 9.663150][ T174] RSP: 0018:ffa0000000847aa8 EFLAGS: 00010286
[ 9.663370][ T174] RAX: 00000000ffffffa6 RBX: ff1100000b1450c0 RCX: 1ff4000000108f1b
[ 9.663619][ T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b145170
[ 9.663874][ T174] RBP: ff1100000539c000 R08: 1fe2200001628a2f R09: ff1100000bcc2e80
[ 9.664147][ T174] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.664394][ T174] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000539c000
[ 9.664649][ T174] FS: 00007f876cfe8840(0000) GS:ff11000091c79000(0000) knlGS:0000000000000000
[ 9.665015][ T174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.665238][ T174] CR2: 0000000000479648 CR3: 0000000002431001 CR4: 0000000000771ef0
[ 9.665488][ T174] PKRU: 55555554
[ 9.665638][ T174] Call Trace:
[ 9.665795][ T174]
[ 9.665917][ T174] ? ip6_route_dev_notify+0x250/0x380
[ 9.666124][ T174] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.666310][ T174] ? notifier_call_chain+0xb0/0x320
[ 9.666499][ T174] rtmsg_ifinfo+0x5c/0xb0
[ 9.666655][ T174] register_netdevice+0x1526/0x1bc0
[ 9.666843][ T174] ? unregister_netdevice_queue+0x470/0x470
[ 9.667084][ T174] ? alloc_netdev_mqs+0xeda/0x1430
[ 9.667275][ T174] register_netdev+0x23/0x40
[ 9.667459][ T174] loopback_net_init+0x7d/0x150
[ 9.667648][ T174] ops_init+0x187/0x560
[ 9.667809][ T174] setup_net+0x11b/0x3b0
[ 9.667967][ T174] ? unregister_pernet_device+0x80/0x80
[ 9.668165][ T174] ? lockdep_init_map_type+0x5d/0x250
[ 9.668351][ T174] ? mutex_init_lockdep+0xf6/0x120
[ 9.668539][ T174] copy_net_ns+0x2fd/0x450
[ 9.668732][ T174] create_new_namespaces+0x371/0xa10
[ 9.668920][ T174] unshare_nsproxy_namespaces+0xa5/0x150
[ 9.669130][ T174] ksys_unshare+0x47e/0x8c0
[ 9.669315][ T174] ? walk_process_tree+0x350/0x350
[ 9.669499][ T174] ? __ia32_sys_open+0x1b0/0x1b0
[ 9.669692][ T174] __x64_sys_unshare+0x34/0x50
[ 9.669893][ T174] ? do_syscall_64+0x82/0xfc0
[ 9.670099][ T174] do_syscall_64+0x117/0xfc0
[ 9.670286][ T174] ? trace_hardirqs_off+0xd/0x30
[ 9.670470][ T174] ? exc_page_fault+0xee/0x100
[ 9.670657][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.670873][ T174] RIP: 0033:0x7f876d2aabcb
[ 9.671086][ 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
[ 9.671617][ T174] RSP: 002b:00007fff1905b758 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[ 9.671873][ T174] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f876d2aabcb
[ 9.672143][ T174] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 9.672403][ T174] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 9.672654][ T174] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff1905d980
[ 9.672903][ T174] R13: 0000000000000001 R14: 00007f876cfe86f8 R15: 00007fff1905e864
[ 9.673171][ T174]
[ 9.673319][ T174] irq event stamp: 20185
[ 9.673493][ T174] hardirqs last enabled at (20195): [] __up_console_sem+0x5a/0x70
[ 9.673788][ T174] hardirqs last disabled at (20204): [] __up_console_sem+0x3f/0x70
[ 9.674088][ T174] softirqs last enabled at (19610): [] handle_softirqs+0x611/0x940
[ 9.674367][ T174] softirqs last disabled at (18961): [] __irq_exit_rcu+0x103/0x1c0
[ 9.674661][ T174] ---[ end trace 0000000000000000 ]---
[ 9.791739][ T173] ------------[ cut here ]------------
[ 9.792041][ T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: python3/173
[ 9.792436][ T173] Modules linked in: netdevsim
[ 9.792677][ T173] CPU: 0 UID: 0 PID: 173 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.793039][ T173] Tainted: [W]=WARN
[ 9.793172][ T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.793414][ T173] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.793636][ 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
[ 9.794257][ T173] RSP: 0018:ffa0000000837500 EFLAGS: 00010286
[ 9.794473][ T173] RAX: 00000000ffffffa6 RBX: ff11000004b2adc0 RCX: 1ff4000000106e66
[ 9.794735][ T173] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004b2ae70
[ 9.795000][ T173] RBP: ff1100000ce92000 R08: 1fe22000009655cf R09: ff1100000bcc0c48
[ 9.795256][ T173] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.795508][ T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ce92000
[ 9.795769][ T173] FS: 00007fb52656d400(0000) GS:ff11000091b79000(0000) knlGS:0000000000000000
[ 9.796084][ T173] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.796302][ T173] CR2: 00007fb52696e0a1 CR3: 00000000060b5005 CR4: 0000000000771ef0
[ 9.796557][ T173] PKRU: 55555554
[ 9.796689][ T173] Call Trace:
[ 9.796819][ T173]
[ 9.796909][ T173] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.797095][ T173] rtmsg_ifinfo+0x5c/0xb0
[ 9.797236][ T173] register_netdevice+0x1526/0x1bc0
[ 9.797408][ T173] ? unregister_netdevice_queue+0x470/0x470
[ 9.797618][ T173] ? __debugfs_create_file+0x2cf/0x3c0
[ 9.797798][ T173] nsim_init_netdevsim+0x80e/0xcb0 [netdevsim]
[ 9.798029][ T173] nsim_create+0x45b/0x5b0 [netdevsim]
[ 9.798201][ T173] __nsim_dev_port_add+0x30b/0x7a0 [netdevsim]
[ 9.798412][ T173] ? add_timer_on+0x580/0x580
[ 9.798587][ T173] ? nsim_dev_get_vfs+0x90/0x90 [netdevsim]
[ 9.798803][ T173] ? is_module_address+0x68/0x110
[ 9.798986][ T173] ? static_obj+0x5d/0x90
[ 9.799115][ T173] ? mark_held_locks+0x40/0x70
[ 9.799287][ T173] ? nsim_dev_hwstats_init+0x3a4/0x4d0 [netdevsim]
[ 9.799501][ T173] nsim_drv_probe+0x59e/0x8d0 [netdevsim]
[ 9.799678][ T173] call_driver_probe+0x61/0x1c0
[ 9.799853][ T173] really_probe+0x199/0x760
[ 9.800036][ T173] ? driver_probe_device+0x130/0x130
[ 9.800205][ T173] __driver_probe_device+0x1dc/0x430
[ 9.800376][ T173] driver_probe_device+0x4a/0x130
[ 9.800544][ T173] __device_attach_driver+0x16d/0x2a0
[ 9.800717][ T173] bus_for_each_drv+0x135/0x1e0
[ 9.800886][ T173] ? bus_find_device_reverse+0x1c0/0x1c0
[ 9.801072][ T173] __device_attach+0x1a6/0x410
[ 9.801241][ T173] ? __rwlock_init+0x150/0x150
[ 9.801411][ T173] ? __driver_attach_async_helper+0x2a0/0x2a0
[ 9.801636][ T173] ? do_raw_spin_unlock+0x59/0x250
[ 9.801815][ T173] ? _raw_spin_unlock+0x2d/0x50
[ 9.801999][ T173] device_initial_probe+0x8b/0xc0
[ 9.802170][ T173] bus_probe_device+0x63/0x160
[ 9.802344][ T173] device_add+0xb16/0x1130
[ 9.802516][ T173] ? __fw_devlink_link_to_consumers.isra.0+0x2d0/0x2d0
[ 9.802735][ T173] ? __init_waitqueue_head+0xcb/0x160
[ 9.802907][ T173] ? pm_runtime_init+0x323/0x3f0
[ 9.803093][ T173] new_device_store+0x3d4/0x730 [netdevsim]
[ 9.803310][ T173] ? __lock_release.isra.0+0x6b/0x1a0
[ 9.803481][ T173] ? new_port_store+0x1a0/0x1a0 [netdevsim]
[ 9.803699][ T173] ? sysfs_file_kobj+0xb3/0x1e0
[ 9.803874][ T173] ? sysfs_file_kobj+0xbd/0x1e0
[ 9.804058][ T173] ? sysfs_file_ops+0x140/0x140
[ 9.804229][ T173] kernfs_fop_write_iter+0x335/0x510
[ 9.804399][ T173] ? kernfs_ops+0xf0/0xf0
[ 9.804530][ T173] new_sync_write+0x333/0x750
[ 9.804705][ T173] ? __lock_acquire+0x508/0xc10
[ 9.804878][ T173] ? new_sync_read+0x740/0x740
[ 9.805062][ T173] ? lock_acquire.part.0+0xbc/0x260
[ 9.805232][ T173] ? ksys_write+0x116/0x250
[ 9.805409][ T173] vfs_write+0x6a4/0xc10
[ 9.805542][ T173] ksys_write+0x116/0x250
[ 9.805676][ T173] ? __ia32_sys_read+0xc0/0xc0
[ 9.805847][ T173] ? kernfs_fop_llseek+0x160/0x1f0
[ 9.806030][ T173] ? rcu_is_watching+0x15/0xd0
[ 9.806205][ T173] do_syscall_64+0x117/0xfc0
[ 9.806377][ T173] ? trace_hardirqs_off+0xd/0x30
[ 9.806548][ T173] ? exc_page_fault+0xee/0x100
[ 9.806724][ T173] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.806937][ T173] RIP: 0033:0x7fb5266f508e
[ 9.807131][ 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
[ 9.807742][ T173] RSP: 002b:00007ffded1fe5c0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9.808015][ T173] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007fb5266f508e
[ 9.808271][ T173] RDX: 0000000000000009 RSI: 000055753bff6ab0 RDI: 0000000000000006
[ 9.808526][ T173] RBP: 00007ffded1fe5d0 R08: 0000000000000000 R09: 0000000000000000
[ 9.808786][ T173] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fb52656d390
[ 9.809054][ T173] R13: 000055753bff6ab0 R14: 0000000000000006 R15: 00007fb5264f90d0
[ 9.809319][ T173]
[ 9.809449][ T173] irq event stamp: 330573
[ 9.809578][ T173] hardirqs last enabled at (330581): [] __up_console_sem+0x5a/0x70
[ 9.809886][ T173] hardirqs last disabled at (330588): [] __up_console_sem+0x3f/0x70
[ 9.810199][ T173] softirqs last enabled at (329838): [] handle_softirqs+0x611/0x940
[ 9.810497][ T173] softirqs last disabled at (329757): [] __irq_exit_rcu+0x103/0x1c0
[ 9.810800][ T173] ---[ end trace 0000000000000000 ]---
[ 10.325153][ T12] ------------[ cut here ]------------
[ 10.325497][ T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: kworker/u16:0/12
[ 10.325797][ T12] Modules linked in: netdevsim
[ 10.328054][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 10.328605][ T12] Tainted: [W]=WARN
[ 10.328863][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.329131][ T12] Workqueue: netns cleanup_net
[ 10.329376][ T12] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 10.329544][ 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
[ 10.330030][ T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[ 10.330192][ T12] RAX: 00000000ffffffa6 RBX: ff1100000a5770c0 RCX: 1ff4000000018ed5
[ 10.330410][ T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a577170
[ 10.330767][ T12] RBP: ff1100000539c000 R08: 1fe22000014aee2f R09: ff11000001b051d0
[ 10.331222][ T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 10.331426][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 10.331620][ T12] FS: 0000000000000000(0000) GS:ff11000091b79000(0000) knlGS:0000000000000000
[ 10.331920][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 10.332275][ T12] CR2: 00007fd42c99a2a0 CR3: 000000002d339001 CR4: 0000000000771ef0
[ 10.332468][ T12] PKRU: 55555554
[ 10.332566][ T12] Call Trace:
[ 10.332668][ T12]
[ 10.332882][ T12] unregister_netdevice_many_notify+0xce3/0x1b30
[ 10.334548][ T12] ? unregister_netdevice_queued+0x80/0x80
[ 10.334735][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.334868][ T12] default_device_exit_batch+0x38b/0x600
[ 10.335017][ T12] ? unregister_netdev+0x60/0x60
[ 10.335149][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.335278][ T12] ops_undo_list+0x2ce/0x8f0
[ 10.335405][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 10.335531][ T12] ? __lock_release.isra.0+0x6b/0x1a0
[ 10.335664][ T12] cleanup_net+0x431/0x890
[ 10.335790][ T12] ? net_passive_dec+0x1c0/0x1c0
[ 10.336158][ T12] ? process_one_work+0xdb7/0x1410
[ 10.336311][ T12] ? lock_acquire+0x134/0x160
[ 10.336434][ T12] ? rcu_is_watching+0x15/0xd0
[ 10.336565][ T12] process_one_work+0xdf8/0x1410
[ 10.336872][ T12] ? pwq_dec_nr_in_flight+0x710/0x710
[ 10.337037][ T12] ? lock_acquire.part.0+0xbc/0x260
[ 10.337173][ T12] worker_thread+0x4f1/0xd60
[ 10.337317][ T12] ? rescuer_thread+0x1320/0x1320
[ 10.337617][ T12] kthread+0x367/0x460
[ 10.337723][ T12] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 10.337884][ T12] ? kthread_affine_node+0x330/0x330
[ 10.338031][ T12] ret_from_fork+0x474/0x6b0
[ 10.338158][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 10.338529][ T12] ? __switch_to+0x5a3/0xe00
[ 10.339469][ T12] ? kthread_affine_node+0x330/0x330
[ 10.339634][ T12] ret_from_fork_asm+0x11/0x20
[ 10.340181][ T12]
[ 10.340280][ T12] irq event stamp: 3379
[ 10.340397][ T12] hardirqs last enabled at (3389): [] __up_console_sem+0x5a/0x70
[ 10.350488][ T12] hardirqs last disabled at (3722): [] __up_console_sem+0x3f/0x70
[ 10.350893][ T12] softirqs last enabled at (2786): [] handle_softirqs+0x611/0x940
[ 10.351164][ T12] softirqs last disabled at (2781): [] __irq_exit_rcu+0x103/0x1c0
[ 10.351388][ T12] ---[ end trace 0000000000000000 ]---