watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [ksoftirqd/1:20]
Modules linked in:
irq event stamp: 1174537
hardirqs last  enabled at (1174536): [<ffff80001194e720>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline]
hardirqs last  enabled at (1174536): [<ffff80001194e720>] exit_to_kernel_mode+0x100/0x178 arch/arm64/kernel/entry-common.c:91
hardirqs last disabled at (1174537): [<ffff80001194e968>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (1079148): [<ffff800008020ccc>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (1079148): [<ffff800008020ccc>] __do_softirq+0xb5c/0xe20 kernel/softirq.c:587
softirqs last disabled at (1079159): [<ffff8000081b7e98>] run_ksoftirqd+0x68/0x258 kernel/softirq.c:920
CPU: 1 PID: 20 Comm: ksoftirqd/1 Not tainted 5.15.116-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __list_del_entry_valid+0x88/0x150 lib/list_debug.c:59
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 : ffff8000189b6f60
x29: ffff8000189b6f60 x28: ffff00012880aaf0 x27: 1fffe0002510155c
x26: dfff800000000000 x25: ffff0000dbf922e8 x24: ffff0000dbf922f0
x23: ffff00012880aae0 x22: ffff0000dbf922e0 x21: dfff800000000000
x20: ffff0000dbf922e0 x19: ffff00012880aaf0 x18: 0000000000000501
x17: ff8080000ff527ac x16: 0000000000000000 x15: ffff80000ff527ac
x14: 0000000000000001 x13: ffffffffffffffff x12: 0000000000000100
x11: ff80800010098b18 x10: 0000000000000000 x9 : ffff0000dbf92328
x8 : 0000000000000000 x7 : ffff80000fd8c024 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : dead000000000122 x1 : 0000000000000000 x0 : ffff00012880aaf8
Call trace:
 __list_del_entry_valid+0x88/0x150 lib/list_debug.c:59
 __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
 run_ksoftirqd+0x68/0x258 kernel/softirq.c:920
 smpboot_thread_fn+0x4b0/0x920 kernel/smpboot.c:164
 kthread+0x37c/0x45c kernel/kthread.c:319
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870