rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (1 GPs behind) idle=a0d/1/0x4000000000000000 softirq=21848/21849 fqs=5007
(t=10500 jiffies g=27505 q=1150)
NMI backtrace for cpu 0
CPU: 0 PID: 3561 Comm: syz-executor.1 Not tainted 5.15.116-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
rcu_dump_cpu_stacks+0x223/0x390 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
rcu_pending kernel/rcu/tree.c:3888 [inline]
rcu_sched_clock_irq+0xf26/0x1770 kernel/rcu/tree.c:2606
update_process_times+0x196/0x200 kernel/time/timer.c:1788
tick_sched_handle kernel/time/tick-sched.c:226 [inline]
tick_sched_timer+0x22d/0x3c0 kernel/time/tick-sched.c:1430
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x55b/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x2a/0x60 kernel/kcov.c:197
Code: 48 8b 04 24 65 48 8b 0d 64 76 82 7e 65 8b 15 65 76 82 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 34 16 00 00 00 <74> 2c 8b 91 10 16 00 00 83 fa 02 75 21 48 8b 91 18 16 00 00 48 8b
RSP: 0000:ffffc90002ecf328 EFLAGS: 00000246
RAX: ffffffff886925a5 RBX: dffffc0000000000 RCX: ffff888024823b80
RDX: 0000000000000501 RSI: 0000000000000000 RDI: ffff88803dc6ad28
RBP: 0000000000000000 R08: ffffffff88692394 R09: ffffffff8851a5b8
R10: 0000000000000002 R11: ffff888024823b80 R12: ffff888014583af0
R13: ffff888014583800 R14: ffff88803dc6ad20 R15: ffff888014583ae8
__list_del_entry include/linux/list.h:135 [inline]
list_move_tail include/linux/list.h:227 [inline]
fq_pie_qdisc_dequeue+0x345/0xa90 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+0x253/0x1e90 net/sched/sch_generic.c:415
__dev_xmit_skb net/core/dev.c:3879 [inline]
__dev_queue_xmit+0xf0a/0x3230 net/core/dev.c:4190
neigh_output include/net/neighbour.h:516 [inline]
ip6_finish_output2+0xee4/0x14f0 net/ipv6/ip6_output.c:126
dst_output include/net/dst.h:449 [inline]
NF_HOOK include/linux/netfilter.h:307 [inline]
ndisc_send_skb+0xae0/0x13c0 net/ipv6/ndisc.c:508
addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3932
call_timer_fn+0x16d/0x560 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
__run_timers+0x67c/0x890 kernel/time/timer.c:1737
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1750
__do_softirq+0x3b3/0x93a kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x155/0x240 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
sysvec_apic_timer_interrupt+0x43/0xb0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0033:0x7f9d43bd17ba
Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe6c66af48 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 0000000000000029 RCX: 00007f9d43bd17ba
RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007ffe6c66af70 R08: 00000000000003b8 R09: ffffffffff000000
R10: 00007f9d43cc8bc0 R11: 0000000000000206 R12: 00007ffe6c66afd0
R13: 0000000000000003 R14: 00007ffe6c66af6c R15: 00007f9d43cc8b60