watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/1:16:17021] Modules linked in: irq event stamp: 276413 hardirqs last enabled at (276412): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (276412): [] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (276413): [] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline] hardirqs last disabled at (276413): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:486 softirqs last enabled at (269998): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (270000): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 CPU: 1 PID: 17021 Comm: kworker/1:16 Not tainted 6.1.32-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 Workqueue: mld mld_ifc_work pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : list_add_tail include/linux/list.h:102 [inline] pc : list_move_tail include/linux/list.h:230 [inline] pc : fq_pie_qdisc_dequeue+0x3ac/0x8ac net/sched/sch_fq_pie.c:248 lr : __list_del_entry include/linux/list.h:137 [inline] lr : list_move_tail include/linux/list.h:229 [inline] lr : fq_pie_qdisc_dequeue+0x290/0x8ac net/sched/sch_fq_pie.c:248 sp : ffff8000239970e0 x29: ffff800023997150 x28: ffff00013f210f20 x27: ffff0000d9dc3ae8 x26: ffff0000d9dc3af0 x25: dfff800000000000 x24: ffff0000d9dc3ae0 x23: ffff00013f210f10 x22: 0000000000000040 x21: ffff0000d9dc3ae0 x20: ffff0000d9dc3ae8 x19: ffff0000d9dc3ae0 x18: ffff0000d9236008 x17: 0000000000000000 x16: ffff8000084fa384 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: ffff00012c6f5340 x11: ff80800010718f60 x10: 0000000000000000 x9 : ffff800010718f60 x8 : 0000000000000000 x7 : ffff80000840686c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff00013f210f20 x1 : 0000000000000000 x0 : ffff00013f210f28 Call trace: list_add_tail include/linux/list.h:102 [inline] list_move_tail include/linux/list.h:230 [inline] fq_pie_qdisc_dequeue+0x3ac/0x8ac net/sched/sch_fq_pie.c:248 dequeue_skb net/sched/sch_generic.c:292 [inline] qdisc_restart net/sched/sch_generic.c:397 [inline] __qdisc_run+0x204/0x239c net/sched/sch_generic.c:415 __dev_xmit_skb net/core/dev.c:3885 [inline] __dev_queue_xmit+0xe14/0x38d8 net/core/dev.c:4227 dev_queue_xmit include/linux/netdevice.h:3018 [inline] neigh_connected_output+0x2f8/0x38c net/core/neighbour.c:1612 neigh_output include/net/neighbour.h:546 [inline] ip6_finish_output2+0xdb4/0x1a98 net/ipv6/ip6_output.c:134 __ip6_finish_output net/ipv6/ip6_output.c:195 [inline] ip6_finish_output+0x538/0x8c8 net/ipv6/ip6_output.c:206 NF_HOOK_COND include/linux/netfilter.h:291 [inline] ip6_output+0x270/0x594 net/ipv6/ip6_output.c:227 dst_output include/net/dst.h:444 [inline] NF_HOOK+0x160/0x4f0 include/linux/netfilter.h:302 mld_sendpack+0x904/0x1358 net/ipv6/mcast.c:1820 mld_send_cr net/ipv6/mcast.c:2121 [inline] mld_ifc_work+0x848/0xc20 net/ipv6/mcast.c:2653 process_one_work+0x7ac/0x1404 kernel/workqueue.c:2289 worker_thread+0x8e4/0xfec kernel/workqueue.c:2436 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860