rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2688 jiffies s: 2265 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5031 Comm: syz-executor.0 Not tainted 6.4.0-rc4-syzkaller-00832-g28cfea989d6f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:__list_del_entry_valid+0x7b/0x1b0 lib/list_debug.c:56
Code: 80 00 00 00 48 85 c9 0f 84 85 00 00 00 48 b8 00 01 00 00 00 00 ad de 48 39 c2 0f 84 80 00 00 00 48 b8 22 01 00 00 00 00 ad de <48> 39 c1 74 7f 48 b8 00 00 00 00 00 fc ff df 48 89 cf 48 c1 ef 03
RSP: 0018:ffffc90000007600 EFLAGS: 00000202
RAX: dead000000000122 RBX: ffff8880492a8da0 RCX: ffff8880788982e0
RDX: ffff8880788982e0 RSI: ffff8880492a8da0 RDI: ffff8880492a8da8
RBP: ffff888078898000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 1ffffffff21aa4b5 R12: dffffc0000000000
R13: ffff8880788982e0 R14: ffff8880788982f0 R15: 0000000000000000
FS:  000055555600c400(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb8f59831b8 CR3: 000000005463d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __list_del_entry include/linux/list.h:134 [inline]
 list_move_tail include/linux/list.h:229 [inline]
 fq_pie_qdisc_dequeue+0x663/0x9c0 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+0x1b2/0x1780 net/sched/sch_generic.c:415
 __dev_xmit_skb net/core/dev.c:3868 [inline]
 __dev_queue_xmit+0x2215/0x3b10 net/core/dev.c:4210
 dev_queue_xmit include/linux/netdevice.h:3085 [inline]
 neigh_connected_output+0x3c2/0x550 net/core/neighbour.c:1581
 neigh_output include/net/neighbour.h:544 [inline]
 ip6_finish_output2+0x55a/0x1560 net/ipv6/ip6_output.c:134
 __ip6_finish_output net/ipv6/ip6_output.c:195 [inline]
 ip6_finish_output+0x69a/0x1170 net/ipv6/ip6_output.c:206
 NF_HOOK_COND include/linux/netfilter.h:292 [inline]
 ip6_output+0x1f1/0x540 net/ipv6/ip6_output.c:227
 dst_output include/net/dst.h:458 [inline]
 NF_HOOK include/linux/netfilter.h:303 [inline]
 ndisc_send_skb+0xa63/0x1850 net/ipv6/ndisc.c:508
 ndisc_send_rs+0x132/0x6f0 net/ipv6/ndisc.c:718
 addrconf_rs_timer+0x3f1/0x870 net/ipv6/addrconf.c:3936
 call_timer_fn+0x1a0/0x580 kernel/time/timer.c:1700
 expire_timers+0x29b/0x4b0 kernel/time/timer.c:1751
 __run_timers kernel/time/timer.c:2022 [inline]
 __run_timers kernel/time/timer.c:1995 [inline]
 run_timer_softirq+0x326/0x910 kernel/time/timer.c:2035
 __do_softirq+0x1d4/0x905 kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x114/0x190 kernel/softirq.c:650
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 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+0x3c/0x70 kernel/locking/spinlock.c:194
Code: 74 24 10 e8 16 3f 52 f7 48 89 ef e8 3e ad 52 f7 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 <e8> af 82 44 f7 65 8b 05 b0 12 f0 75 85 c0 74 0a 5b 5d c3 e8 9c 38
RSP: 0018:ffffc900041dfc80 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff1cf4ee1
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8880b982b840 R08: 0000000000000001 R09: 0000000000000001
R10: fffffbfff1cf54ea R11: 0000000000000001 R12: 0000000000000001
R13: dffffc0000000000 R14: ffffc900041dfdd8 R15: ffff8880187fd940
 hrtimer_start_expires include/linux/hrtimer.h:432 [inline]
 hrtimer_sleeper_start_expires kernel/time/hrtimer.c:1965 [inline]
 do_nanosleep+0x131/0x4f0 kernel/time/hrtimer.c:2041
 hrtimer_nanosleep+0x19b/0x430 kernel/time/hrtimer.c:2097
 common_nsleep+0xa6/0xd0 kernel/time/posix-timers.c:1240
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1281 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1258 [inline]
 __x64_sys_clock_nanosleep+0x32e/0x480 kernel/time/posix-timers.c:1258
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0b9d8b0e91
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:00007ffdfb6a8b60 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000000000000049 RCX: 00007f0b9d8b0e91
RDX: 00007ffdfb6a8ba0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffdfb6a8c2c R08: 0000000000000000 R09: 00007ffdfb731080
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 000000000001d1d0 R14: 0000000000000007 R15: 00007ffdfb6a8c90
 </TASK>