rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2646 jiffies s: 20897 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 10490 Comm: syz-executor.0 Not tainted 6.4.0-rc5-syzkaller-00016-ga4d7d7011219 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:__list_del_entry_valid+0xb5/0x130 lib/list_debug.c:69
Code: 70 49 8d 5e 08 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 aa 85 aa fd 48 8b 13 4c 39 fa 75 62 b0 01 5b 41 5c 41 5e <41> 5f c3 48 c7 c7 a0 47 38 8b 4c 89 fe e8 79 6f 74 06 0f 0b 48 c7
RSP: 0000:ffffc900001e0318 EFLAGS: 00000246
RAX: 1ffff110049df001 RBX: dffffc0000000000 RCX: ffff88807deb3b80
RDX: ffff8880535b4330 RSI: 0000000000000000 RDI: ffff8880535b4338
RBP: 0000000000000000 R08: ffffffff88d11368 R09: ffffffff88ba5a0e
R10: 0000000000000002 R11: ffff88807deb3b80 R12: ffff8880535b4330
R13: ffff888024ef8000 R14: 1ffff1100a6b6864 R15: ffff8880535b4330
FS: 00005555558d4400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2be38000 CR3: 000000007d93d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__list_del_entry include/linux/list.h:134 [inline]
list_move_tail include/linux/list.h:229 [inline]
fq_pie_qdisc_dequeue+0x313/0xa40 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+0x26e/0x20a0 net/sched/sch_generic.c:415
__dev_xmit_skb net/core/dev.c:3868 [inline]
__dev_queue_xmit+0x1397/0x38b0 net/core/dev.c:4210
neigh_output include/net/neighbour.h:544 [inline]
ip6_finish_output2+0xf80/0x1560 net/ipv6/ip6_output.c:134
__ip6_finish_output net/ipv6/ip6_output.c:195 [inline]
ip6_finish_output+0x6b0/0xa80 net/ipv6/ip6_output.c:206
dst_output include/net/dst.h:458 [inline]
NF_HOOK include/linux/netfilter.h:303 [inline]
ndisc_send_skb+0xb08/0x1390 net/ipv6/ndisc.c:508
addrconf_rs_timer+0x35b/0x620 net/ipv6/addrconf.c:3936
call_timer_fn+0x178/0x580 kernel/time/timer.c:1700
expire_timers kernel/time/timer.c:1751 [inline]
__run_timers+0x64f/0x860 kernel/time/timer.c:2022
run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2035
__do_softirq+0x2ab/0x908 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x159/0x240 kernel/softirq.c:650
irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 de 03 2a f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 f3 ad a5 f6 65 8b 05 54 67 4a 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0000:ffffc90005097c40 EFLAGS: 00000206
RAX: ac81bcbe889fee00 RBX: 1ffff92000a12f8c RCX: ffffffff91b21103
RDX: dffffc0000000000 RSI: ffffffff8aea8e20 RDI: 0000000000000001
RBP: ffffc90005097cc8 R08: dffffc0000000000 R09: fffffbfff1cab9ae
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000a12f88 R14: ffffc90005097c60 R15: 0000000000000246
debug_object_free+0x283/0x490 lib/debugobjects.c:891
destroy_hrtimer_on_stack kernel/time/hrtimer.c:452 [inline]
hrtimer_nanosleep+0x386/0x460 kernel/time/hrtimer.c:2112
__do_sys_clock_nanosleep kernel/time/posix-timers.c:1281 [inline]
__se_sys_clock_nanosleep+0x327/0x3b0 kernel/time/posix-timers.c:1258
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2818ab0e91
Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 aa e7 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 e3 e7 ff ff 48 8b 04 24 eb 97 66 2e 0f 1f
RSP: 002b:00007ffd1e77b2b0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00007f2818babf80 RCX: 00007f2818ab0e91
RDX: 00007ffd1e77b2f0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f2818bad980 R08: 0000000000000000 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000080b8e
R13: 00007ffd1e77b400 R14: 00007f2818bac120 R15: 0000000000000032