[   25.494180][  T241] ip (241) used greatest stack depth: 24064 bytes left
[   26.285130][  T246] ip (246) used greatest stack depth: 23960 bytes left
[   28.239309][    C0] BUG: spinlock bad magic on CPU#0, kworker/u16:0/11
[   28.239505][    C0]  lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: kworker/u16:0/11, .owner_cpu: 0
[   28.239771][    C0] CPU: 0 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.10.0-virtme #1
[   28.239970][    C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   28.240246][    C0] Workqueue: netns cleanup_net
[   28.240391][    C0] Call Trace:
[   28.240493][    C0]  <IRQ>
[   28.240564][    C0]  dump_stack_lvl+0xb0/0xd0
[   28.240696][    C0]  do_raw_spin_unlock+0x1ac/0x220
[   28.240830][    C0]  _raw_spin_unlock+0x23/0x40
[   28.240960][    C0]  net_tx_action+0x424/0x680
[   28.241090][    C0]  handle_softirqs+0x1f9/0x5c0
[   28.241223][    C0]  ? dev_deactivate_many+0x1e2/0x8d0
[   28.241357][    C0]  do_softirq+0x4d/0xa0
[   28.241454][    C0]  </IRQ>
[   28.241519][    C0]  <TASK>
[   28.241585][    C0]  __local_bh_enable_ip+0xf6/0x120
[   28.241716][    C0]  dev_deactivate_many+0x1e7/0x8d0
[   28.241850][    C0]  __dev_close_many+0x12b/0x2d0
[   28.241979][    C0]  ? __pfx___dev_close_many+0x10/0x10
[   28.242110][    C0]  ? __lock_acquire+0xa70/0x1560
[   28.242246][    C0]  dev_close_many+0x202/0x650
[   28.242376][    C0]  ? lock_acquire.part.0+0xeb/0x330
[   28.242504][    C0]  ? default_device_exit_batch+0x81/0x2d0
[   28.242637][    C0]  ? __pfx_dev_close_many+0x10/0x10
[   28.242763][    C0]  ? fou_exit_net+0x2f/0xf0
[   28.242894][    C0]  ? __mutex_trylock_common+0xfa/0x260
[   28.243023][    C0]  unregister_netdevice_many_notify+0x8e5/0x1570
[   28.243185][    C0]  ? lock_acquire+0x32/0xc0
[   28.243315][    C0]  ? trace_contention_end+0xeb/0x150
[   28.243446][    C0]  ? __mutex_lock+0x170/0xac0
[   28.243567][    C0]  ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[   28.243722][    C0]  ? __mutex_lock+0x170/0xac0
[   28.243848][    C0]  ? find_held_lock+0x2c/0x110
[   28.243977][    C0]  ? mutex_is_locked+0x17/0x50
[   28.244099][    C0]  ? rtnl_is_locked+0x15/0x20
[   28.244229][    C0]  ? unregister_netdevice_queue+0x70/0x410
[   28.244384][    C0]  ? __pfx_unregister_netdevice_queue+0x10/0x10
[   28.244540][    C0]  ? __pfx_unregister_netdevice_queue+0x10/0x10
[   28.244695][    C0]  default_device_exit_batch+0x234/0x2d0
[   28.244819][    C0]  ? __pfx_default_device_exit_batch+0x10/0x10
[   28.244973][    C0]  ? ops_exit_list+0xb4/0x170
[   28.245102][    C0]  cleanup_net+0x4ef/0xb10
[   28.245226][    C0]  ? __pfx_lock_acquire.part.0+0x10/0x10
[   28.245351][    C0]  ? __pfx_cleanup_net+0x10/0x10
[   28.245478][    C0]  ? trace_lock_acquire+0x14d/0x1f0
[   28.245603][    C0]  ? process_one_work+0xdf1/0x1670
[   28.245731][    C0]  ? lock_acquire+0x32/0xc0
[   28.245856][    C0]  ? process_one_work+0xdf1/0x1670
[   28.245980][    C0]  process_one_work+0xe3b/0x1670
[   28.246110][    C0]  ? __pfx___lock_release+0x10/0x10
[   28.246236][    C0]  ? __pfx_process_one_work+0x10/0x10
[   28.246361][    C0]  ? assign_work+0x16c/0x240
[   28.246488][    C0]  worker_thread+0x587/0xce0
[   28.246619][    C0]  ? __pfx_worker_thread+0x10/0x10
[   28.246743][    C0]  kthread+0x28a/0x350
[   28.246840][    C0]  ? __pfx_kthread+0x10/0x10
[   28.246964][    C0]  ret_from_fork+0x31/0x70
[   28.247091][    C0]  ? __pfx_kthread+0x10/0x10
[   28.247218][    C0]  ret_from_fork_asm+0x1a/0x30
[   28.247349][    C0]  </TASK>