[ 29.775376][ T252] ip (252) used greatest stack depth: 24320 bytes left [ 32.278853][ T9] BUG: spinlock bad magic on CPU#0, kworker/0:1/9 [ 32.279052][ T9] lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: kworker/0:1/9, .owner_cpu: 0 [ 32.279301][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.10.0-virtme #1 [ 32.279525][ T9] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 32.279814][ T9] Workqueue: mld mld_ifc_work [ 32.279953][ T9] Call Trace: [ 32.280055][ T9] [ 32.280125][ T9] dump_stack_lvl+0xb0/0xd0 [ 32.280258][ T9] do_raw_spin_unlock+0x1ac/0x220 [ 32.280395][ T9] _raw_spin_unlock+0x23/0x40 [ 32.280529][ T9] __dev_xmit_skb+0x4ed/0x10c0 [ 32.280665][ T9] ? __pfx___dev_xmit_skb+0x10/0x10 [ 32.280800][ T9] ? lockdep_hardirqs_on_prepare+0x12b/0x410 [ 32.280971][ T9] __dev_queue_xmit+0x784/0x1890 [ 32.281114][ T9] ? __lock_release+0x103/0x460 [ 32.281243][ T9] ? ip6_finish_output2+0x4ab/0xee0 [ 32.281373][ T9] ? __pfx___lock_release+0x10/0x10 [ 32.281503][ T9] ? __pfx___dev_queue_xmit+0x10/0x10 [ 32.281629][ T9] ? mark_held_locks+0x9e/0xe0 [ 32.281760][ T9] ? eth_header+0x158/0x1a0 [ 32.281892][ T9] ? neigh_resolve_output+0x409/0x7d0 [ 32.282031][ T9] ip6_finish_output2+0x4ab/0xee0 [ 32.282173][ T9] ip6_finish_output+0x4ef/0xd40 [ 32.282304][ T9] mld_sendpack+0x91a/0xf40 [ 32.282432][ T9] ? __pfx_mld_sendpack+0x10/0x10 [ 32.282563][ T9] ? mld_send_cr+0x3a1/0x780 [ 32.282701][ T9] mld_ifc_work+0x32/0x1f0 [ 32.282831][ T9] process_one_work+0xe3b/0x1670 [ 32.282964][ T9] ? __pfx___lock_release+0x10/0x10 [ 32.283094][ T9] ? __pfx_process_one_work+0x10/0x10 [ 32.283228][ T9] ? assign_work+0x16c/0x240 [ 32.283364][ T9] worker_thread+0x587/0xce0 [ 32.283499][ T9] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 32.283662][ T9] ? __pfx_worker_thread+0x10/0x10 [ 32.283794][ T9] ? __pfx_worker_thread+0x10/0x10 [ 32.283927][ T9] kthread+0x28a/0x350 [ 32.284027][ T9] ? __pfx_kthread+0x10/0x10 [ 32.284160][ T9] ret_from_fork+0x31/0x70 [ 32.284295][ T9] ? __pfx_kthread+0x10/0x10 [ 32.284427][ T9] ret_from_fork_asm+0x1a/0x30 [ 32.284566][ T9]