[   31.758556][  T263] ip (263) used greatest stack depth: 24720 bytes left
[   32.414788][    T9] BUG: spinlock bad magic on CPU#0, kworker/0:1/9
[   32.414975][    T9]  lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: kworker/0:1/9, .owner_cpu: 0
[   32.415211][    T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.10.0-virtme #1
[   32.415392][    T9] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   32.415657][    T9] Workqueue: mld mld_ifc_work
[   32.415788][    T9] Call Trace:
[   32.415885][    T9]  <TASK>
[   32.415951][    T9]  dump_stack_lvl+0xb0/0xd0
[   32.416083][    T9]  do_raw_spin_unlock+0x1ac/0x220
[   32.416207][    T9]  _raw_spin_unlock+0x23/0x40
[   32.416338][    T9]  __dev_xmit_skb+0x4ed/0x10c0
[   32.416461][    T9]  ? __pfx___dev_xmit_skb+0x10/0x10
[   32.416580][    T9]  ? lockdep_hardirqs_on_prepare+0x12b/0x410
[   32.416727][    T9]  __dev_queue_xmit+0x784/0x1890
[   32.416844][    T9]  ? __lock_release+0x103/0x460
[   32.416962][    T9]  ? ip6_finish_output2+0x4ab/0xee0
[   32.417082][    T9]  ? __pfx___lock_release+0x10/0x10
[   32.417200][    T9]  ? __pfx___dev_queue_xmit+0x10/0x10
[   32.417326][    T9]  ? mark_held_locks+0x9e/0xe0
[   32.417449][    T9]  ? eth_header+0x158/0x1a0
[   32.417573][    T9]  ? neigh_resolve_output+0x409/0x7d0
[   32.417695][    T9]  ip6_finish_output2+0x4ab/0xee0
[   32.417815][    T9]  ip6_finish_output+0x4ef/0xd40
[   32.417937][    T9]  mld_sendpack+0x91a/0xf40
[   32.418056][    T9]  ? __pfx_mld_sendpack+0x10/0x10
[   32.418176][    T9]  ? mld_send_cr+0x3a1/0x780
[   32.418296][    T9]  mld_ifc_work+0x32/0x1f0
[   32.418417][    T9]  process_one_work+0xe3b/0x1670
[   32.418537][    T9]  ? __pfx___lock_release+0x10/0x10
[   32.418655][    T9]  ? __pfx_process_one_work+0x10/0x10
[   32.418780][    T9]  ? assign_work+0x16c/0x240
[   32.418900][    T9]  worker_thread+0x587/0xce0
[   32.419021][    T9]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   32.419168][    T9]  ? __pfx_worker_thread+0x10/0x10
[   32.419285][    T9]  ? __pfx_worker_thread+0x10/0x10
[   32.419402][    T9]  kthread+0x28a/0x350
[   32.419495][    T9]  ? __pfx_kthread+0x10/0x10
[   32.419617][    T9]  ret_from_fork+0x31/0x70
[   32.419737][    T9]  ? __pfx_kthread+0x10/0x10
[   32.419854][    T9]  ret_from_fork_asm+0x1a/0x30
[   32.419992][    T9]  </TASK>
[   56.487344][    C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[   56.671917][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[   57.176391][    C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[   57.633712][    C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[   58.185157][    C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[   58.396429][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.