[   30.400426][    C1] BUG: spinlock bad magic on CPU#1, kworker/u16:1/75
[   30.400638][    C1]  lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: kworker/u16:1/75, .owner_cpu: 1
[   30.400920][    C1] CPU: 1 UID: 0 PID: 75 Comm: kworker/u16:1 Not tainted 6.10.0-virtme #1
[   30.401121][    C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   30.401425][    C1] Workqueue: netns cleanup_net
[   30.401572][    C1] Call Trace:
[   30.401679][    C1]  <IRQ>
[   30.401753][    C1]  dump_stack_lvl+0xb0/0xd0
[   30.401899][    C1]  do_raw_spin_unlock+0x1ac/0x220
[   30.402039][    C1]  _raw_spin_unlock+0x23/0x40
[   30.402178][    C1]  net_tx_action+0x424/0x680
[   30.402323][    C1]  handle_softirqs+0x1f9/0x5c0
[   30.402457][    C1]  ? dev_deactivate_many+0x1e2/0x8d0
[   30.402596][    C1]  do_softirq+0x4d/0xa0
[   30.402698][    C1]  </IRQ>
[   30.402764][    C1]  <TASK>
[   30.402829][    C1]  __local_bh_enable_ip+0xf6/0x120
[   30.402957][    C1]  dev_deactivate_many+0x1e7/0x8d0
[   30.403093][    C1]  __dev_close_many+0x12b/0x2d0
[   30.403227][    C1]  ? __pfx___dev_close_many+0x10/0x10
[   30.403363][    C1]  ? __lock_acquire+0xa70/0x1560
[   30.403499][    C1]  dev_close_many+0x202/0x650
[   30.403634][    C1]  ? lock_acquire.part.0+0xeb/0x330
[   30.403767][    C1]  ? default_device_exit_batch+0x81/0x2d0
[   30.403905][    C1]  ? __pfx_dev_close_many+0x10/0x10
[   30.404034][    C1]  ? fou_exit_net+0x2f/0xf0
[   30.404167][    C1]  ? __mutex_trylock_common+0xfa/0x260
[   30.404301][    C1]  unregister_netdevice_many_notify+0x8e5/0x1570
[   30.404465][    C1]  ? lock_acquire+0x32/0xc0
[   30.404597][    C1]  ? trace_contention_end+0xeb/0x150
[   30.404738][    C1]  ? __mutex_lock+0x170/0xac0
[   30.404875][    C1]  ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[   30.405037][    C1]  ? __mutex_lock+0x170/0xac0
[   30.405174][    C1]  ? find_held_lock+0x2c/0x110
[   30.405306][    C1]  ? mutex_is_locked+0x17/0x50
[   30.405444][    C1]  ? rtnl_is_locked+0x15/0x20
[   30.405578][    C1]  ? unregister_netdevice_queue+0x70/0x410
[   30.405736][    C1]  ? __pfx_unregister_netdevice_queue+0x10/0x10
[   30.405899][    C1]  ? __pfx_unregister_netdevice_queue+0x10/0x10
[   30.406069][    C1]  default_device_exit_batch+0x234/0x2d0
[   30.406232][    C1]  ? __pfx_default_device_exit_batch+0x10/0x10
[   30.406393][    C1]  ? ops_exit_list+0xb4/0x170
[   30.406546][    C1]  cleanup_net+0x4ef/0xb10
[   30.406683][    C1]  ? __pfx_lock_acquire.part.0+0x10/0x10
[   30.406819][    C1]  ? __pfx_cleanup_net+0x10/0x10
[   30.406953][    C1]  ? trace_lock_acquire+0x14d/0x1f0
[   30.407090][    C1]  ? process_one_work+0xdf1/0x1670
[   30.407225][    C1]  ? lock_acquire+0x32/0xc0
[   30.407360][    C1]  ? process_one_work+0xdf1/0x1670
[   30.407497][    C1]  process_one_work+0xe3b/0x1670
[   30.407633][    C1]  ? __pfx___lock_release+0x10/0x10
[   30.407765][    C1]  ? __pfx_process_one_work+0x10/0x10
[   30.407901][    C1]  ? assign_work+0x16c/0x240
[   30.408038][    C1]  worker_thread+0x587/0xce0
[   30.408181][    C1]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   30.408353][    C1]  ? __pfx_worker_thread+0x10/0x10
[   30.408489][    C1]  ? __pfx_worker_thread+0x10/0x10
[   30.408704][    C1]  kthread+0x28a/0x350
[   30.408805][    C1]  ? __pfx_kthread+0x10/0x10
[   30.408939][    C1]  ret_from_fork+0x31/0x70
[   30.409073][    C1]  ? __pfx_kthread+0x10/0x10
[   30.409204][    C1]  ret_from_fork_asm+0x1a/0x30
[   30.409344][    C1]  </TASK>