[ 43.859972][ C1] BUG: spinlock bad magic on CPU#1, kworker/u16:1/76 [ 43.860172][ C1] lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: kworker/u16:1/76, .owner_cpu: 1 [ 43.860457][ C1] CPU: 1 UID: 0 PID: 76 Comm: kworker/u16:1 Not tainted 6.10.0-virtme #1 [ 43.860662][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.860960][ C1] Workqueue: netns cleanup_net [ 43.861102][ C1] Call Trace: [ 43.861205][ C1] [ 43.861273][ C1] dump_stack_lvl+0xb0/0xd0 [ 43.861413][ C1] do_raw_spin_unlock+0x1ac/0x220 [ 43.861547][ C1] _raw_spin_unlock+0x23/0x40 [ 43.861680][ C1] net_tx_action+0x424/0x680 [ 43.861812][ C1] handle_softirqs+0x1f9/0x5c0 [ 43.861948][ C1] ? dev_deactivate_many+0x1e2/0x8d0 [ 43.862083][ C1] do_softirq+0x4d/0xa0 [ 43.862182][ C1] [ 43.862257][ C1] [ 43.862323][ C1] __local_bh_enable_ip+0xf6/0x120 [ 43.862458][ C1] dev_deactivate_many+0x1e7/0x8d0 [ 43.862592][ C1] __dev_close_many+0x12b/0x2d0 [ 43.862720][ C1] ? __pfx___dev_close_many+0x10/0x10 [ 43.862848][ C1] ? __lock_acquire+0xa70/0x1560 [ 43.862978][ C1] dev_close_many+0x202/0x650 [ 43.863111][ C1] ? lock_acquire.part.0+0xeb/0x330 [ 43.863243][ C1] ? default_device_exit_batch+0x81/0x2d0 [ 43.863377][ C1] ? __pfx_dev_close_many+0x10/0x10 [ 43.863503][ C1] ? fou_exit_net+0x2f/0xf0 [ 43.863638][ C1] ? __mutex_trylock_common+0xfa/0x260 [ 43.863772][ C1] unregister_netdevice_many_notify+0x8e5/0x1570 [ 43.863931][ C1] ? lock_acquire+0x32/0xc0 [ 43.864065][ C1] ? trace_contention_end+0xeb/0x150 [ 43.864208][ C1] ? __mutex_lock+0x170/0xac0 [ 43.864339][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 43.864498][ C1] ? __mutex_lock+0x170/0xac0 [ 43.864629][ C1] ? find_held_lock+0x2c/0x110 [ 43.864765][ C1] ? mutex_is_locked+0x17/0x50 [ 43.864896][ C1] ? mutex_is_locked+0x17/0x50 [ 43.865025][ C1] ? rtnl_is_locked+0x15/0x20 [ 43.865155][ C1] ? unregister_netdevice_queue+0x70/0x410 [ 43.865318][ C1] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 43.865478][ C1] default_device_exit_batch+0x234/0x2d0 [ 43.865609][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 43.865774][ C1] ? ops_exit_list+0xb4/0x170 [ 43.865909][ C1] cleanup_net+0x4ef/0xb10 [ 43.866037][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.866168][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 43.866296][ C1] ? trace_lock_acquire+0x14d/0x1f0 [ 43.866433][ C1] ? process_one_work+0xdf1/0x1670 [ 43.866561][ C1] ? lock_acquire+0x32/0xc0 [ 43.866692][ C1] ? process_one_work+0xdf1/0x1670 [ 43.866825][ C1] process_one_work+0xe3b/0x1670 [ 43.866964][ C1] ? __pfx___lock_release+0x10/0x10 [ 43.867097][ C1] ? __pfx_process_one_work+0x10/0x10 [ 43.867230][ C1] ? assign_work+0x16c/0x240 [ 43.867366][ C1] worker_thread+0x587/0xce0 [ 43.867496][ C1] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 43.867665][ C1] ? __pfx_worker_thread+0x10/0x10 [ 43.867796][ C1] ? __pfx_worker_thread+0x10/0x10 [ 43.867924][ C1] kthread+0x28a/0x350 [ 43.868027][ C1] ? __pfx_kthread+0x10/0x10 [ 43.868162][ C1] ret_from_fork+0x31/0x70 [ 43.868293][ C1] ? __pfx_kthread+0x10/0x10 [ 43.868426][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.868574][ C1] [ 46.865805][ T278] GACT probability NOT on [ 47.199659][ T282] drop_monitor: Initializing network drop monitor service