hlock_class+0x4e/0x130 [ 53.944785][ T67] ? mark_lock+0x38/0x3e0 [ 53.944903][ T67] __lock_acquire+0xb9a/0x1680 [ 53.945058][ T67] lock_acquire.part.0+0xeb/0x330 [ 53.945202][ T67] ? blocking_notifier_call_chain+0x50/0x90 [ 53.945387][ T67] ? __lock_acquire+0xb9a/0x1680 [ 53.945539][ T67] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 53.945693][ T67] ? trace_lock_acquire+0x14c/0x1f0 [ 53.945846][ T67] ? lock_acquire+0x32/0xc0 [ 53.945996][ T67] ? blocking_notifier_call_chain+0x50/0x90 [ 53.946193][ T67] down_read+0x9f/0x340 [ 53.946309][ T67] ? blocking_notifier_call_chain+0x50/0x90 [ 53.946503][ T67] ? __pfx_down_read+0x10/0x10 [ 53.946667][ T67] ? __lock_release+0x103/0x460 [ 53.946821][ T67] blocking_notifier_call_chain+0x50/0x90 [ 53.946979][ T67] __netdev_upper_dev_unlink+0xd9/0x220 [ 53.947130][ T67] ? mark_held_locks+0x9e/0xe0 [ 53.947308][ T67] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 53.947498][ T67] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 53.947692][ T67] ? __try_to_del_timer_sync+0xe7/0x140 [ 53.947843][ T67] ? __pfx___try_to_del_timer_sync+0x10/0x10 [ 53.948033][ T67] ? mark_held_locks+0x9e/0xe0 [ 53.948181][ T67] netdev_upper_dev_unlink+0x71/0xa0 [ 53.948331][ T67] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 53.948520][ T67] ? mutex_is_locked+0x1c/0x60 [ 53.948679][ T67] ? rtnl_is_locked+0x15/0x20 [ 53.948837][ T67] ? netdev_master_upper_dev_get+0x13/0x120 [ 53.949026][ T67] vrf_device_event+0x78/0xe0 [ 53.949183][ T67] notifier_call_chain+0xcd/0x150 [ 53.949345][ T67] blocking_notifier_call_chain+0x66/0x90 [ 53.949516][ T67] unregister_netdevice_many_notify+0xa7b/0x1580 [ 53.949722][ T67] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 53.949913][ T67] ? default_device_exit_batch+0x81/0x2e0 [ 53.950074][ T67] ? rtnl_is_locked+0x15/0x20 [ 53.950238][ T67] ? unregister_netdevice_queue+0x70/0x410 [ 53.950412][ T67] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 53.950617][ T67] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 53.950805][ T67] default_device_exit_batch+0x241/0x2e0 [ 53.950964][ T67] ? __pfx_default_device_exit_batch+0x10/0x10 [ 53.951154][ T67] ? mutex_is_locked+0x1c/0x60 [ 53.951334][ T67] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 53.951521][ T67] cleanup_net+0x4ef/0xa50 [ 53.951674][ T67] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 53.951820][ T67] ? __pfx_cleanup_net+0x10/0x10 [ 53.951996][ T67] ? trace_lock_acquire+0x14c/0x1f0 [ 53.952149][ T67] ? lock_acquire+0x32/0xc0 [ 53.952317][ T67] ? process_one_work+0xe0b/0x16d0 [ 53.952473][ T67] process_one_work+0xe55/0x16d0 [ 53.952631][ T67] ? __pfx___lock_release+0x10/0x10 [ 53.952806][ T67] ? __pfx_process_one_work+0x10/0x10 [ 53.952961][ T67] ? assign_work+0x16c/0x240 [ 53.953137][ T67] worker_thread+0x58c/0xce0 [ 53.953291][ T67] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 53.953497][ T67] ? __pfx_worker_thread+0x10/0x10 [ 53.953663][ T67] ? __pfx_worker_thread+0x10/0x10 [ 53.953820][ T67] kthread+0x28a/0x350 [ 53.953944][ T67] ? __pfx_kthread+0x10/0x10 [ 53.954120][ T67] ret_from_fork+0x31/0x70 [ 53.954275][ T67] ? __pfx_kthread+0x10/0x10 [ 53.954449][ T67] ret_from_fork_asm+0x1a/0x30 [ 53.954605][ T67]