rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (1 GPs behind) idle=cf5/1/0x4000000000000002 softirq=34527/34528 fqs=5248 
	(detected by 1, t=10502 jiffies, g=49601, q=5007)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 14 Comm: ksoftirqd/0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:201
Code: 2e 0f 1f 84 00 00 00 00 00 90 53 48 89 fb e8 17 00 00 00 48 8b 3d d0 06 f4 0c 48 89 de 5b e9 b7 7f 44 00 00 00 cc cc 00 00 cc <48> 8b 04 24 65 48 8b 0d 24 42 89 7e 65 8b 15 25 42 89 7e 81 e2 00
RSP: 0000:ffffc90000d36fa0 EFLAGS: 00000082
RAX: ffffffff8198b07a RBX: ffff88805e36d988 RCX: ffff8880b8e351c8
RDX: ffffc90000d37080 RSI: 0000000000000001 RDI: ffff88805e36d988
RBP: ffffc90000d37080 R08: ffff88813fea1dc7 R09: 1ffff11027fd43b8
R10: dffffc0000000000 R11: ffffed1027fd43b9 R12: 0000000000000001
R13: ffff8880b8e351c8 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f93969e66c8 CR3: 000000002014b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000200000001580 DR2: 0000200000001580
DR3: 0000200000001580 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 perf_swevent_event+0x1f/0x540 kernel/events/core.c:9618
 perf_tp_event+0x324/0xbe0 kernel/events/core.c:10059
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10033
 perf_trace_preemptirq_template+0x2aa/0x360 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 kernel/rcu/tree_plugin.h:674
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 d2 f6 9c 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0000:ffffc90000d374a0 EFLAGS: 00000206
RAX: 572dde7134610f00 RBX: 1ffff920001a6e98 RCX: 572dde7134610f00
RDX: dffffc0000000000 RSI: ffffffff8a2b2b60 RDI: ffffffff8a7a5100
RBP: ffffc90000d37580 R08: ffffffff91047197 R09: 1ffffffff2208e32
R10: dffffc0000000000 R11: fffffbfff2208e33 R12: ffffffff8d123400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:772 [inline]
 ndisc_send_skb+0xd3b/0x1410 net/ipv6/ndisc.c:521
 ndisc_send_ns+0x662/0x860 net/ipv6/ndisc.c:655
 ndisc_solicit+0x300/0x4f0 net/ipv6/ndisc.c:747
 neigh_probe net/core/neighbour.c:1017 [inline]
 neigh_timer_handler+0xaa9/0xff0 net/core/neighbour.c:1099
 call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648
 expire_timers kernel/time/timer.c:1699 [inline]
 __run_timers+0x56c/0x810 kernel/time/timer.c:1970
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
 handle_softirqs+0x336/0x830 kernel/softirq.c:576
 run_ksoftirqd+0xa4/0x100 kernel/softirq.c:943
 smpboot_thread_fn+0x520/0x990 kernel/smpboot.c:164
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>