[   39.673939][    C0] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[   43.779425][    C3] BUG: spinlock bad magic on CPU#3, kworker/u16:1/75
[   43.779769][    C3]  lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: kworker/u16:1/75, .owner_cpu: 3
[   43.780159][    C3] CPU: 3 UID: 0 PID: 75 Comm: kworker/u16:1 Not tainted 6.10.0-virtme #1
[   43.780477][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   43.780981][    C3] Workqueue: netns cleanup_net
[   43.781217][    C3] Call Trace:
[   43.781378][    C3]  <IRQ>
[   43.781474][    C3]  dump_stack_lvl+0xb0/0xd0
[   43.781708][    C3]  do_raw_spin_unlock+0x1ac/0x220
[   43.781928][    C3]  _raw_spin_unlock+0x23/0x40
[   43.782163][    C3]  net_tx_action+0x402/0x660
[   43.782352][    C3]  handle_softirqs+0x1f9/0x5c0
[   43.782531][    C3]  ? dev_deactivate_many+0x1e2/0x8d0
[   43.782688][    C3]  do_softirq+0x4d/0xa0
[   43.782812][    C3]  </IRQ>
[   43.782888][    C3]  <TASK>
[   43.782994][    C3]  __local_bh_enable_ip+0xf6/0x120
[   43.783148][    C3]  dev_deactivate_many+0x1e7/0x8d0
[   43.783331][    C3]  __dev_close_many+0x12b/0x2d0
[   43.783551][    C3]  ? __pfx___dev_close_many+0x10/0x10
[   43.783771][    C3]  dev_close_many+0x202/0x650
[   43.783962][    C3]  ? lock_acquire.part.0+0xeb/0x330
[   43.784108][    C3]  ? default_device_exit_batch+0x81/0x2d0
[   43.784266][    C3]  ? __pfx_dev_close_many+0x10/0x10
[   43.784586][    C3]  ? __mutex_trylock_common+0xfa/0x260
[   43.784929][    C3]  unregister_netdevice_many_notify+0x8e5/0x1570
[   43.785191][    C3]  ? lock_acquire+0x32/0xc0
[   43.785358][    C3]  ? trace_contention_end+0xeb/0x150
[   43.785530][    C3]  ? __mutex_lock+0x170/0xac0
[   43.785846][    C3]  ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[   43.786100][    C3]  ? mark_lock+0x38/0x3e0
[   43.786273][    C3]  ? mutex_is_locked+0x17/0x50
[   43.786473][    C3]  ? rtnl_is_locked+0x15/0x20
[   43.786815][    C3]  ? unregister_netdevice_queue+0x70/0x410
[   43.787072][    C3]  ? __pfx_unregister_netdevice_queue+0x10/0x10
[   43.787345][    C3]  ? __pfx_unregister_netdevice_queue+0x10/0x10
[   43.787600][    C3]  default_device_exit_batch+0x234/0x2d0
[   43.787922][    C3]  ? __pfx_default_device_exit_batch+0x10/0x10
[   43.788212][    C3]  ? mutex_is_locked+0x17/0x50
[   43.788423][    C3]  ? nexthop_net_exit_batch_rtnl+0x83/0x210
[   43.788799][    C3]  cleanup_net+0x4ef/0x9d0
[   43.789009][    C3]  ? __pfx_lock_acquire.part.0+0x10/0x10
[   43.789218][    C3]  ? __pfx_cleanup_net+0x10/0x10
[   43.789425][    C3]  ? trace_lock_acquire+0x14d/0x1f0
[   43.789653][    C3]  ? process_one_work+0xdf1/0x1670
[   43.789975][    C3]  ? lock_acquire+0x32/0xc0
[   43.790193][    C3]  ? process_one_work+0xdf1/0x1670
[   43.790411][    C3]  process_one_work+0xe3b/0x1670
[   43.790647][    C3]  ? __pfx___lock_release+0x10/0x10
[   43.790973][    C3]  ? __pfx_process_one_work+0x10/0x10
[   43.791181][    C3]  ? assign_work+0x16c/0x240
[   43.791403][    C3]  worker_thread+0x587/0xce0
[   43.791882][    C3]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   43.792287][    C3]  ? __pfx_worker_thread+0x10/0x10
[   43.792513][    C3]  ? __pfx_worker_thread+0x10/0x10
[   43.792725][    C3]  kthread+0x28a/0x350
[   43.792880][    C3]  ? __pfx_kthread+0x10/0x10
[   43.793311][    C3]  ret_from_fork+0x31/0x70
[   43.793527][    C3]  ? __pfx_kthread+0x10/0x10
[   43.793729][    C3]  ret_from_fork_asm+0x1a/0x30
[   43.793937][    C3]  </TASK>