[ 34.375199][ T9] BUG: spinlock bad magic on CPU#0, kworker/0:1/9 [ 34.375439][ T9] lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: kworker/0:1/9, .owner_cpu: 0 [ 34.375659][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.10.0-virtme #1 [ 34.375845][ T9] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 34.376124][ T9] Workqueue: mld mld_ifc_work [ 34.376254][ T9] Call Trace: [ 34.376348][ T9] [ 34.376429][ T9] dump_stack_lvl+0xb0/0xd0 [ 34.376557][ T9] do_raw_spin_unlock+0x1ac/0x220 [ 34.376685][ T9] _raw_spin_unlock+0x23/0x40 [ 34.376810][ T9] __dev_xmit_skb+0x4ed/0x10c0 [ 34.376937][ T9] ? __pfx___dev_xmit_skb+0x10/0x10 [ 34.377057][ T9] ? lockdep_hardirqs_on_prepare+0x12b/0x410 [ 34.377208][ T9] __dev_queue_xmit+0x784/0x1890 [ 34.377327][ T9] ? __lock_release+0x103/0x460 [ 34.377445][ T9] ? ip6_finish_output2+0x4ab/0xee0 [ 34.377566][ T9] ? __pfx___lock_release+0x10/0x10 [ 34.377683][ T9] ? __pfx___dev_queue_xmit+0x10/0x10 [ 34.377803][ T9] ? mark_held_locks+0x9e/0xe0 [ 34.377957][ T9] ? eth_header+0x158/0x1a0 [ 34.378080][ T9] ? neigh_resolve_output+0x409/0x7d0 [ 34.378202][ T9] ip6_finish_output2+0x4ab/0xee0 [ 34.378326][ T9] ip6_finish_output+0x4ef/0xd40 [ 34.378447][ T9] mld_sendpack+0x91a/0xf40 [ 34.378566][ T9] ? __pfx_mld_sendpack+0x10/0x10 [ 34.378690][ T9] ? mld_send_cr+0x3a1/0x780 [ 34.378812][ T9] mld_ifc_work+0x32/0x1f0 [ 34.378930][ T9] process_one_work+0xe3b/0x1670 [ 34.379056][ T9] ? __pfx___lock_release+0x10/0x10 [ 34.379173][ T9] ? __pfx_process_one_work+0x10/0x10 [ 34.379295][ T9] ? assign_work+0x16c/0x240 [ 34.379415][ T9] worker_thread+0x587/0xce0 [ 34.379534][ T9] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 34.379680][ T9] ? __pfx_worker_thread+0x10/0x10 [ 34.379806][ T9] ? __pfx_worker_thread+0x10/0x10 [ 34.379928][ T9] kthread+0x28a/0x350 [ 34.380021][ T9] ? __pfx_kthread+0x10/0x10 [ 34.380142][ T9] ret_from_fork+0x31/0x70 [ 34.380267][ T9] ? __pfx_kthread+0x10/0x10 [ 34.380391][ T9] ret_from_fork_asm+0x1a/0x30 [ 34.380515][ T9]