[   34.848922][    T9] BUG: spinlock bad magic on CPU#0, kworker/0:1/9
[   34.849145][    T9]  lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: kworker/0:1/9, .owner_cpu: 0
[   34.849420][    T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.10.0-virtme #1
[   34.849639][    T9] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   34.849954][    T9] Workqueue: mld mld_ifc_work
[   34.850103][    T9] Call Trace:
[   34.850209][    T9]  <TASK>
[   34.850289][    T9]  dump_stack_lvl+0xb0/0xd0
[   34.850428][    T9]  do_raw_spin_unlock+0x1ac/0x220
[   34.850565][    T9]  _raw_spin_unlock+0x23/0x40
[   34.850713][    T9]  __dev_xmit_skb+0x4ed/0x10c0
[   34.850853][    T9]  ? __pfx___dev_xmit_skb+0x10/0x10
[   34.850996][    T9]  ? lockdep_hardirqs_on_prepare+0x12b/0x410
[   34.851179][    T9]  __dev_queue_xmit+0x784/0x1890
[   34.851320][    T9]  ? __lock_release+0x103/0x460
[   34.851458][    T9]  ? ip6_finish_output2+0x4ab/0xee0
[   34.851605][    T9]  ? __pfx___lock_release+0x10/0x10
[   34.851743][    T9]  ? __pfx___dev_queue_xmit+0x10/0x10
[   34.851897][    T9]  ? mark_held_locks+0x9e/0xe0
[   34.852035][    T9]  ? eth_header+0x158/0x1a0
[   34.852175][    T9]  ? neigh_resolve_output+0x409/0x7d0
[   34.852321][    T9]  ip6_finish_output2+0x4ab/0xee0
[   34.852459][    T9]  ip6_finish_output+0x4ef/0xd40
[   34.852610][    T9]  mld_sendpack+0x91a/0xf40
[   34.852746][    T9]  ? __pfx_mld_sendpack+0x10/0x10
[   34.852903][    T9]  ? mld_send_cr+0x3a1/0x780
[   34.853048][    T9]  mld_ifc_work+0x32/0x1f0
[   34.853198][    T9]  process_one_work+0xe3b/0x1670
[   34.853340][    T9]  ? __pfx___lock_release+0x10/0x10
[   34.853488][    T9]  ? __pfx_process_one_work+0x10/0x10
[   34.853644][    T9]  ? assign_work+0x16c/0x240
[   34.853788][    T9]  worker_thread+0x587/0xce0
[   34.853928][    T9]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   34.854111][    T9]  ? __pfx_worker_thread+0x10/0x10
[   34.854270][    T9]  ? __pfx_worker_thread+0x10/0x10
[   34.854417][    T9]  kthread+0x28a/0x350
[   34.854525][    T9]  ? __pfx_kthread+0x10/0x10
[   34.854670][    T9]  ret_from_fork+0x31/0x70
[   34.854808][    T9]  ? __pfx_kthread+0x10/0x10
[   34.854953][    T9]  ret_from_fork_asm+0x1a/0x30
[   34.855093][    T9]  </TASK>
[   60.018015][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[   60.079737][    C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[   60.133938][    C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[   60.259996][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[   60.495545][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[   60.534996][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[   61.712716][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.