rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2644 jiffies s: 57513 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: 13959 Comm: syz.3.3098 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:__lock_acquire+0x5a6f/0x7d10 kernel/locking/lockdep.c:5076
Code: 00 00 fc ff df 48 c7 84 24 20 01 00 00 0e 36 e0 45 48 8b 84 24 e0 00 00 00 4a c7 04 00 00 00 00 00 4a c7 44 00 08 00 00 00 00 <4a> c7 44 00 10 00 00 00 00 42 c7 44 00 18 00 00 00 00 65 48 8b 04
RSP: 0018:ffffc900000071c0 EFLAGS: 00000093
RAX: 1ffff92000000e5c RBX: ffff88807e638ad8 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90afa240
RBP: ffffc90000007410 R08: dffffc0000000000 R09: 1ffffffff215f448
R10: dffffc0000000000 R11: fffffbfff215f449 R12: da2e616334457c0f
R13: 000000000000402d R14: da2e616334457c0f R15: ffff88807e638ad0
FS:  00007fab7ffbc6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fab7ffbbff8 CR3: 000000005d88c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lock_acquire+0x1bb/0x4a0 kernel/locking/lockdep.c:5662
 rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 rcu_read_lock include/linux/rcupdate.h:791 [inline]
 __perf_event_output kernel/events/core.c:7728 [inline]
 perf_event_output_forward+0xdf/0x2f0 kernel/events/core.c:7750
 __perf_event_overflow+0x448/0x610 kernel/events/core.c:9496
 perf_swevent_overflow kernel/events/core.c:9579 [inline]
 perf_swevent_event+0x315/0x570 kernel/events/core.c:9630
 perf_tp_event+0x3e7/0xc30 kernel/events/core.c:10064
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10032
 perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: 00 00 00 66 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 5e c1 2c f7 48 89 df e8 a6 89 2d f7 e8 81 e0 50 f7 fb bf 01 00 00 00 <e8> f6 ed 20 f7 65 8b 05 f7 5f ca 75 85 c0 74 02 5b c3 e8 44 74 c8
RSP: 0018:ffffc90000007c70 EFLAGS: 00000282
RAX: 0fdd8a776406f100 RBX: ffff8880b8e28440 RCX: 0fdd8a776406f100
RDX: dffffc0000000000 RSI: ffffffff8a8c19a0 RDI: 0000000000000001
RBP: ffffc90000007dd0 R08: ffffffff90afa33f R09: 1ffffffff215f467
R10: dffffc0000000000 R11: fffffbfff215f468 R12: ffff8880b8e28440
R13: 1ffff110171c5090 R14: ffffc90000157be0 R15: ffffc90000007d20
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x52f/0x800 kernel/time/timer.c:2023
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:2036
 handle_softirqs+0x2a1/0x930 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:generic_exec_single+0x431/0x4a0 kernel/smp.c:545
Code: 75 11 e8 d2 05 0b 00 48 85 db 75 16 e8 c8 05 0b 00 eb 15 e8 c1 05 0b 00 e8 dc 74 b6 08 48 85 db 74 ea e8 b2 05 0b 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 44 25 00 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc90004dd7a60 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffff88807e638000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004dd7b30 R08: ffffffff90afa33f R09: 1ffffffff215f467
R10: dffffc0000000000 R11: fffffbfff215f468 R12: dffffc0000000000
R13: 1ffff920009baf50 R14: 0000000000000000 R15: 1ffff920009baf71
 smp_call_function_single+0x371/0x5a0 kernel/smp.c:784
 task_function_call kernel/events/core.c:120 [inline]
 perf_install_in_context+0x5c7/0x920 kernel/events/core.c:2941
 __do_sys_perf_event_open kernel/events/core.c:12824 [inline]
 __se_sys_perf_event_open+0x1287/0x1ec0 kernel/events/core.c:12418
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fab7f19ce59
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:00007fab7ffbc028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fab7f416090 RCX: 00007fab7f19ce59
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480
RBP: 00007fab7f232d6f R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fab7f416128 R14: 00007fab7f416090 R15: 00007ffd6ed5b7d8
 </TASK>