[ 9.567689][ T174] ------------[ cut here ]------------
[ 9.568220][ T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/174
[ 9.571057][ T174] Modules linked in:
[ 9.571196][ T174] CPU: 3 UID: 0 PID: 174 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.571464][ T174] Tainted: [W]=WARN
[ 9.571565][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.571731][ T174] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.571912][ 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
[ 9.572409][ T174] RSP: 0018:ffa0000000857aa8 EFLAGS: 00010286
[ 9.572578][ T174] RAX: 00000000ffffffa6 RBX: ff11000008ea9540 RCX: 1ff400000010af1b
[ 9.572774][ T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008ea95f0
[ 9.572974][ T174] RBP: ff11000008559000 R08: 1fe22000011d52bf R09: ff1100000c5bd180
[ 9.573210][ T174] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.573405][ T174] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008559000
[ 9.573601][ T174] FS: 00007f24f7b3e840(0000) GS:ff110000a6cf9000(0000) knlGS:0000000000000000
[ 9.573892][ T174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.574065][ T174] CR2: 0000000000479648 CR3: 000000000c2b3004 CR4: 0000000000771ef0
[ 9.574275][ T174] PKRU: 55555554
[ 9.574376][ T174] Call Trace:
[ 9.574474][ T174]
[ 9.574543][ T174] ? ip6_route_dev_notify+0x250/0x380
[ 9.574676][ T174] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.574813][ T174] ? notifier_call_chain+0xb0/0x320
[ 9.574952][ T174] rtmsg_ifinfo+0x5c/0xb0
[ 9.575055][ T174] register_netdevice+0x1526/0x1bc0
[ 9.575200][ T174] ? unregister_netdevice_queue+0x470/0x470
[ 9.575363][ T174] ? alloc_netdev_mqs+0xeda/0x1430
[ 9.575497][ T174] register_netdev+0x23/0x40
[ 9.575627][ T174] loopback_net_init+0x7d/0x150
[ 9.575759][ T174] ops_init+0x187/0x560
[ 9.575870][ T174] setup_net+0x11b/0x3b0
[ 9.575971][ T174] ? unregister_pernet_device+0x80/0x80
[ 9.576108][ T174] ? lockdep_init_map_type+0x5d/0x250
[ 9.576247][ T174] ? mutex_init_lockdep+0xf6/0x120
[ 9.576384][ T174] copy_net_ns+0x2fd/0x450
[ 9.576518][ T174] create_new_namespaces+0x371/0xa10
[ 9.576655][ T174] unshare_nsproxy_namespaces+0xa5/0x150
[ 9.576789][ T174] ksys_unshare+0x47e/0x8c0
[ 9.576927][ T174] ? walk_process_tree+0x350/0x350
[ 9.577058][ T174] ? __ia32_sys_open+0x1b0/0x1b0
[ 9.577205][ T174] __x64_sys_unshare+0x34/0x50
[ 9.577337][ T174] ? do_syscall_64+0x82/0xfc0
[ 9.577469][ T174] do_syscall_64+0x117/0xfc0
[ 9.577599][ T174] ? trace_hardirqs_off+0xd/0x30
[ 9.577731][ T174] ? exc_page_fault+0xee/0x100
[ 9.577873][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.578039][ T174] RIP: 0033:0x7f24f7e00bcb
[ 9.578187][ 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
[ 9.578667][ T174] RSP: 002b:00007fff72e9c828 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[ 9.578873][ T174] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f24f7e00bcb
[ 9.579070][ T174] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 9.579277][ T174] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 9.579475][ T174] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff72e9ea50
[ 9.579674][ T174] R13: 0000000000000001 R14: 00007f24f7b3e6f8 R15: 00007fff72e9f86a
[ 9.579884][ T174]
[ 9.579985][ T174] irq event stamp: 25357
[ 9.580084][ T174] hardirqs last enabled at (25365): [] __up_console_sem+0x5a/0x70
[ 9.580326][ T174] hardirqs last disabled at (25372): [] __up_console_sem+0x3f/0x70
[ 9.580560][ T174] softirqs last enabled at (24884): [] handle_softirqs+0x611/0x940
[ 9.580786][ T174] softirqs last disabled at (24343): [] __irq_exit_rcu+0x103/0x1c0
[ 9.581020][ T174] ---[ end trace 0000000000000000 ]---
[ 9.705308][ T173] ------------[ cut here ]------------
[ 9.705600][ T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: python3/173
[ 9.705988][ T173] Modules linked in: netdevsim
[ 9.706222][ T173] CPU: 1 UID: 0 PID: 173 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.706564][ T173] Tainted: [W]=WARN
[ 9.706692][ T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.706908][ T173] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.707131][ 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
[ 9.707737][ T173] RSP: 0018:ffa0000000847500 EFLAGS: 00010286
[ 9.707957][ T173] RAX: 00000000ffffffa6 RBX: ff110000094c2040 RCX: 1ff4000000108e66
[ 9.708220][ T173] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000094c20f0
[ 9.708468][ T173] RBP: ff1100000bf12000 R08: 1fe220000129841f R09: ff1100000c5baf48
[ 9.708717][ T173] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.708970][ T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000bf12000
[ 9.709230][ T173] FS: 00007f041ee02400(0000) GS:ff110000a6bf9000(0000) knlGS:0000000000000000
[ 9.709605][ T173] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.709843][ T173] CR2: 0000561d78bbf850 CR3: 000000000d243005 CR4: 0000000000771ef0
[ 9.710095][ T173] PKRU: 55555554
[ 9.710238][ T173] Call Trace:
[ 9.710363][ T173]
[ 9.710448][ T173] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.710616][ T173] rtmsg_ifinfo+0x5c/0xb0
[ 9.710742][ T173] register_netdevice+0x1526/0x1bc0
[ 9.710919][ T173] ? unregister_netdevice_queue+0x470/0x470
[ 9.711133][ T173] ? __debugfs_create_file+0x2cf/0x3c0
[ 9.711306][ T173] nsim_init_netdevsim+0x80e/0xcb0 [netdevsim]
[ 9.711518][ T173] nsim_create+0x45b/0x5b0 [netdevsim]
[ 9.711684][ T173] __nsim_dev_port_add+0x30b/0x7a0 [netdevsim]
[ 9.711894][ T173] ? add_timer_on+0x580/0x580
[ 9.712058][ T173] ? nsim_dev_get_vfs+0x90/0x90 [netdevsim]
[ 9.712276][ T173] ? is_module_address+0x68/0x110
[ 9.712439][ T173] ? static_obj+0x5d/0x90
[ 9.712563][ T173] ? mark_held_locks+0x40/0x70
[ 9.712729][ T173] ? nsim_dev_hwstats_init+0x3a4/0x4d0 [netdevsim]
[ 9.712938][ T173] nsim_drv_probe+0x59e/0x8d0 [netdevsim]
[ 9.713109][ T173] call_driver_probe+0x61/0x1c0
[ 9.713279][ T173] really_probe+0x199/0x760
[ 9.713455][ T173] ? driver_probe_device+0x130/0x130
[ 9.713616][ T173] __driver_probe_device+0x1dc/0x430
[ 9.713781][ T173] driver_probe_device+0x4a/0x130
[ 9.713951][ T173] __device_attach_driver+0x16d/0x2a0
[ 9.714115][ T173] bus_for_each_drv+0x135/0x1e0
[ 9.714284][ T173] ? bus_find_device_reverse+0x1c0/0x1c0
[ 9.714450][ T173] __device_attach+0x1a6/0x410
[ 9.714613][ T173] ? __rwlock_init+0x150/0x150
[ 9.714775][ T173] ? __driver_attach_async_helper+0x2a0/0x2a0
[ 9.714982][ T173] ? do_raw_spin_unlock+0x59/0x250
[ 9.715150][ T173] ? _raw_spin_unlock+0x2d/0x50
[ 9.715321][ T173] device_initial_probe+0x8b/0xc0
[ 9.715485][ T173] bus_probe_device+0x63/0x160
[ 9.715648][ T173] device_add+0xb16/0x1130
[ 9.715816][ T173] ? __fw_devlink_link_to_consumers.isra.0+0x2d0/0x2d0
[ 9.716022][ T173] ? __init_waitqueue_head+0xcb/0x160
[ 9.716196][ T173] ? pm_runtime_init+0x323/0x3f0
[ 9.716363][ T173] new_device_store+0x3d4/0x730 [netdevsim]
[ 9.716567][ T173] ? __lock_release.isra.0+0x6b/0x1a0
[ 9.716729][ T173] ? new_port_store+0x1a0/0x1a0 [netdevsim]
[ 9.716936][ T173] ? sysfs_file_kobj+0xb3/0x1e0
[ 9.717108][ T173] ? sysfs_file_kobj+0xbd/0x1e0
[ 9.717280][ T173] ? sysfs_file_ops+0x140/0x140
[ 9.717443][ T173] kernfs_fop_write_iter+0x335/0x510
[ 9.717608][ T173] ? kernfs_ops+0xf0/0xf0
[ 9.717732][ T173] new_sync_write+0x333/0x750
[ 9.717902][ T173] ? __lock_acquire+0x508/0xc10
[ 9.718066][ T173] ? new_sync_read+0x740/0x740
[ 9.718239][ T173] ? lock_acquire.part.0+0xbc/0x260
[ 9.718405][ T173] ? ksys_write+0x116/0x250
[ 9.718572][ T173] vfs_write+0x6a4/0xc10
[ 9.718697][ T173] ksys_write+0x116/0x250
[ 9.718827][ T173] ? __ia32_sys_read+0xc0/0xc0
[ 9.718993][ T173] ? kernfs_fop_llseek+0x160/0x1f0
[ 9.719166][ T173] ? rcu_is_watching+0x15/0xd0
[ 9.719335][ T173] do_syscall_64+0x117/0xfc0
[ 9.719499][ T173] ? trace_hardirqs_off+0xd/0x30
[ 9.719664][ T173] ? exc_page_fault+0xee/0x100
[ 9.719835][ T173] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.720039][ T173] RIP: 0033:0x7f041ef8a08e
[ 9.720218][ 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
[ 9.720801][ T173] RSP: 002b:00007ffd3bc01d50 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9.721053][ T173] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f041ef8a08e
[ 9.721308][ T173] RDX: 0000000000000009 RSI: 0000562a07a7f110 RDI: 0000000000000006
[ 9.721551][ T173] RBP: 00007ffd3bc01d60 R08: 0000000000000000 R09: 0000000000000000
[ 9.721800][ T173] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f041ee02390
[ 9.722044][ T173] R13: 0000562a07a7f110 R14: 0000000000000006 R15: 00007f041ed910d0
[ 9.722304][ T173]
[ 9.722426][ T173] irq event stamp: 339591
[ 9.722550][ T173] hardirqs last enabled at (339599): [] __up_console_sem+0x5a/0x70
[ 9.722842][ T173] hardirqs last disabled at (339608): [] __up_console_sem+0x3f/0x70
[ 9.723133][ T173] softirqs last enabled at (338816): [] __alloc_skb+0x4c5/0x5f0
[ 9.723426][ T173] softirqs last disabled at (338814): [] __alloc_skb+0x4c5/0x5f0
[ 9.723708][ T173] ---[ end trace 0000000000000000 ]---
[ 10.199877][ T12] ------------[ cut here ]------------
[ 10.204466][ T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: kworker/u16:0/12
[ 10.206090][ T12] Modules linked in: netdevsim
[ 10.209269][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 10.223892][ T12] Tainted: [W]=WARN
[ 10.225729][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.226941][ T12] Workqueue: netns cleanup_net
[ 10.227341][ T12] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 10.227953][ 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
[ 10.228438][ T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[ 10.228596][ T12] RAX: 00000000ffffffa6 RBX: ff11000008da6dc0 RCX: 1ff4000000018ed5
[ 10.229369][ T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008da6e70
[ 10.229577][ T12] RBP: ff11000008559000 R08: 1fe22000011b4dcf R09: ff11000001b051d0
[ 10.232544][ T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 10.232791][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 10.232998][ T12] FS: 0000000000000000(0000) GS:ff110000a6b79000(0000) knlGS:0000000000000000
[ 10.233239][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 10.234876][ T12] CR2: 0000561d93960f88 CR3: 000000000b684002 CR4: 0000000000771ef0
[ 10.236882][ T12] PKRU: 55555554
[ 10.238733][ T12] Call Trace:
[ 10.282543][ T12]
[ 10.282641][ T12] unregister_netdevice_many_notify+0xce3/0x1b30
[ 10.282821][ T12] ? unregister_netdevice_queued+0x80/0x80
[ 10.282976][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.283109][ T12] default_device_exit_batch+0x38b/0x600
[ 10.283274][ T12] ? unregister_netdev+0x60/0x60
[ 10.283404][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.283528][ T12] ops_undo_list+0x2ce/0x8f0
[ 10.283650][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 10.283771][ T12] ? __lock_release.isra.0+0x6b/0x1a0
[ 10.283904][ T12] cleanup_net+0x431/0x890
[ 10.284025][ T12] ? net_passive_dec+0x1c0/0x1c0
[ 10.284175][ T12] ? process_one_work+0xdb7/0x1410
[ 10.284304][ T12] ? lock_acquire+0x134/0x160
[ 10.284437][ T12] ? rcu_is_watching+0x15/0xd0
[ 10.284563][ T12] process_one_work+0xdf8/0x1410
[ 10.284690][ T12] ? pwq_dec_nr_in_flight+0x710/0x710
[ 10.284829][ T12] ? lock_acquire.part.0+0xbc/0x260
[ 10.284969][ T12] worker_thread+0x4f1/0xd60
[ 10.285100][ T12] ? rescuer_thread+0x1320/0x1320
[ 10.285246][ T12] kthread+0x367/0x460
[ 10.285341][ T12] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 10.285495][ T12] ? kthread_affine_node+0x330/0x330
[ 10.285619][ T12] ret_from_fork+0x474/0x6b0
[ 10.285743][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 10.285900][ T12] ? __switch_to+0x5a3/0xe00
[ 10.286025][ T12] ? kthread_affine_node+0x330/0x330
[ 10.286157][ T12] ret_from_fork_asm+0x11/0x20
[ 10.286289][ T12]
[ 10.286381][ T12] irq event stamp: 5083
[ 10.286472][ T12] hardirqs last enabled at (5091): [] __up_console_sem+0x5a/0x70
[ 10.286682][ T12] hardirqs last disabled at (5098): [] __up_console_sem+0x3f/0x70
[ 10.286899][ T12] softirqs last enabled at (4856): [] handle_softirqs+0x611/0x940
[ 10.287114][ T12] softirqs last disabled at (4851): [] __irq_exit_rcu+0x103/0x1c0
[ 10.287329][ T12] ---[ end trace 0000000000000000 ]---