rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (1 GPs behind) idle=1c5/1/0x4000000000000002 softirq=21546/21548 fqs=5247 
	(detected by 1, t=10502 jiffies, g=30617, q=1204)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 11341 Comm: syz.3.2810 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:hlock_class kernel/locking/lockdep.c:-1 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4711 [inline]
RIP: 0010:__lock_acquire+0x942/0x7b50 kernel/locking/lockdep.c:4962
Code: 00 00 00 e8 30 4f 61 00 4c 0f a3 35 f8 15 c2 0e 73 1a 4b 8d 04 76 c1 e0 06 4c 8d b0 80 8f b7 8f 49 b8 00 00 00 00 00 fc ff df <eb> 2b 49 b8 00 00 00 00 00 fc ff df 48 8b 84 24 98 00 00 00 42 0f
RSP: 0018:ffffc90000006c00 EFLAGS: 00000006
RAX: 0000000000000fc0 RBX: 0000000000000004 RCX: ffffffff815cfac0
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff901f10c0
RBP: ffffc90000006e30 R08: dffffc0000000000 R09: 1ffffffff203e218
R10: dffffc0000000000 R11: fffffbfff203e219 R12: ffff888021cc64f0
R13: 0000000000000002 R14: ffffffff8fb79f40 R15: ffff888021cc64f0
FS:  00007fa1128276c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa112826ff8 CR3: 0000000058209000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5625
 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:313
 rcu_read_lock include/linux/rcupdate.h:740 [inline]
 __perf_output_begin kernel/events/ring_buffer.c:163 [inline]
 perf_output_begin_forward+0xa5/0xa30 kernel/events/ring_buffer.c:271
 __perf_event_output kernel/events/core.c:7814 [inline]
 perf_event_output_forward+0x19b/0x2e0 kernel/events/core.c:7832
 __perf_event_overflow+0x35f/0x550 kernel/events/core.c:9525
 perf_swevent_overflow kernel/events/core.c:9601 [inline]
 perf_swevent_event+0x4b8/0x540 kernel/events/core.c:9639
 perf_tp_event+0x324/0xbe0 kernel/events/core.c:10057
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10031
 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 42 0b 9d 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: 0018:ffffc90000007780 EFLAGS: 00000206
RAX: dd60bc6c1a01af00 RBX: 1ffff92000000ef4 RCX: dd60bc6c1a01af00
RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: ffffffff8a7a48c0
RBP: ffffc90000007860 R08: ffffffff901f11e7 R09: 1ffffffff203e23c
R10: dffffc0000000000 R11: fffffbfff203e23d R12: ffffffff8c323400
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
 addrconf_rs_timer+0x367/0x640 net/ipv6/addrconf.c:3966
 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
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:perf_trace_init+0x185/0x2d0 kernel/trace/trace_event_perf.c:222
Code: e8 f0 37 f8 ff eb 23 e8 e9 37 f8 ff eb 1c e8 e2 37 f8 ff eb 15 48 89 df e8 e8 e4 02 00 84 c0 0f 85 9c 00 00 00 e8 cb 37 f8 ff <48> 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 75 6b 3d 00
RSP: 0018:ffffc900047f7c28 EFLAGS: 00000293
RAX: ffffffff8180dcb0 RBX: ffffffff8c6dd680 RCX: ffff888021cc5940
RDX: 0000000000000000 RSI: 000000000000047f RDI: 0000000000000116
RBP: 0000000000000002 R08: ffffc900047f7a07 R09: 1ffff920008fef40
R10: dffffc0000000000 R11: fffff520008fef41 R12: 000000000000047f
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000116
 perf_tp_event_init+0x89/0x110 kernel/events/core.c:10112
 perf_try_init_event+0x12b/0x3d0 kernel/events/core.c:11611
 perf_init_event kernel/events/core.c:11675 [inline]
 perf_event_alloc+0xf78/0x21d0 kernel/events/core.c:11967
 __do_sys_perf_event_open kernel/events/core.c:12505 [inline]
 __se_sys_perf_event_open+0x5de/0x1bb0 kernel/events/core.c:12397
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fa1131c7159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa112827028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fa11344efa0 RCX: 00007fa1131c7159
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 00002000000003c0
RBP: 00007fa11325e03b R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa11344f038 R14: 00007fa11344efa0 R15: 00007ffd9d87cf98
 </TASK>