watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [swapper/0:0] Modules linked in: irq event stamp: 194483 hardirqs last enabled at (194482): [] exit_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:235 hardirqs last disabled at (194483): [] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227 softirqs last enabled at (189290): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (189290): [] __do_softirq+0xb5c/0xe20 kernel/softirq.c:587 softirqs last disabled at (189405): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (189405): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (189405): [] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.15.114-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __list_del_entry_valid+0x2c/0x150 lib/list_debug.c:46 lr : __list_del_entry include/linux/list.h:132 [inline] lr : list_move_tail include/linux/list.h:227 [inline] lr : fq_pie_qdisc_dequeue+0x288/0x874 net/sched/sch_fq_pie.c:248 sp : ffff800008007100 x29: ffff800008007100 x28: ffff0000daa17200 x27: 1fffe0001b542e3e x26: dfff800000000000 x25: ffff0000cd1b42e8 x24: ffff0000cd1b42f0 x23: ffff0000daa171f0 x22: ffff0000cd1b42e0 x21: dfff800000000000 x20: 0000000000000000 x19: ffff0000daa17200 x18: 0000000000000502 x17: ff8080000ff4d74c x16: 0000000000000000 x15: ffff80000ff4d74c x14: 0000000000000001 x13: ffffffffffffffff x12: 0000000000000100 x11: ff80800010093940 x10: 0000000000000000 x9 : ffff0000cd1b4328 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000082e91ec x2 : ffff0000cd1b42e0 x1 : 0000000000000000 x0 : ffff0000daa17208 Call trace: __list_del_entry_valid+0x2c/0x150 lib/list_debug.c:46 __list_del_entry include/linux/list.h:132 [inline] list_move_tail include/linux/list.h:227 [inline] fq_pie_qdisc_dequeue+0x288/0x874 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+0x1ec/0x1fc0 net/sched/sch_generic.c:415 __dev_xmit_skb net/core/dev.c:3879 [inline] __dev_queue_xmit+0x1068/0x2a6c net/core/dev.c:4190 dev_queue_xmit+0x24/0x34 net/core/dev.c:4258 neigh_connected_output+0x334/0x378 net/core/neighbour.c:1553 neigh_output include/net/neighbour.h:516 [inline] ip6_finish_output2+0x1344/0x1c48 net/ipv6/ip6_output.c:126 __ip6_finish_output+0x518/0x67c net/ipv6/ip6_output.c:191 ip6_finish_output+0x40/0x218 net/ipv6/ip6_output.c:201 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x270/0x594 net/ipv6/ip6_output.c:224 dst_output include/net/dst.h:449 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ndisc_send_skb+0xbf8/0x1788 net/ipv6/ndisc.c:508 ndisc_send_rs+0x494/0x5fc net/ipv6/ndisc.c:702 addrconf_rs_timer+0x308/0x5a8 net/ipv6/addrconf.c:3932 call_timer_fn+0x19c/0x8f0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers+0x554/0x718 kernel/time/timer.c:1737 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:1750 __do_softirq+0x344/0xe20 kernel/softirq.c:558 do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] invoke_softirq kernel/softirq.c:439 [inline] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636 irq_exit+0x14/0x88 kernel/softirq.c:660 handle_domain_irq+0xf4/0x178 kernel/irq/irqdesc.c:710 gic_handle_irq+0x78/0x1c8 drivers/irqchip/irq-gic-v3.c:757 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:899 do_interrupt_handler+0x74/0x94 arch/arm64/kernel/entry-common.c:267 el1_interrupt+0x30/0x58 arch/arm64/kernel/entry-common.c:442 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:458 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:580 arch_local_irq_enable+0xc/0x18 arch/arm64/include/asm/irqflags.h:35 default_idle_call+0xcc/0x4a8 kernel/sched/idle.c:112 cpuidle_idle_call kernel/sched/idle.c:194 [inline] do_idle+0x1d4/0x4dc kernel/sched/idle.c:306 cpu_startup_entry+0x24/0x28 kernel/sched/idle.c:403 rest_init+0x364/0x38c init/main.c:736 arch_call_rest_init+0x14/0x20 init/main.c:889 start_kernel+0x444/0x604 init/main.c:1144 __primary_switched+0xa8/0xb0 arch/arm64/kernel/head.S:468