rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (2 ticks this GP) idle=3dc4/1/0x4000000000000000 softirq=90565/90574 fqs=5239
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  7644968          0            0
rcu: 	cputime:    25324          0            0   ==> 52500(ms)
rcu: 	(detected by 1, t=10502 jiffies, g=143313, q=589 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 17516 Comm: syz.1.3823 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:182 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x10/0x60 kernel/kcov.c:216
Code: 89 fb e8 13 00 00 00 48 8b 3d dc 06 c5 0c 48 89 de 5b e9 73 7a 56 00 cc cc cc f3 0f 1e fa 48 8b 04 24 65 48 8b 0d b0 29 7e 7e <65> 8b 15 b1 29 7e 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75
RSP: 0000:ffffc900032278f8 EFLAGS: 00000097
RAX: ffffffff81acf127 RBX: 0000000000000000 RCX: ffff88802c6e0000
RDX: ffff88802c6e0000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: ffffc90003227b88 R08: ffffc900032276c7 R09: 1ffff92000644ed8
R10: dffffc0000000000 R11: fffff52000644ed9 R12: 0000000000000000
R13: ffffc90003227988 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f456ceb76c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4b10bf6d00 CR3: 000000006b891000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000082
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 perf_swevent_put_recursion_context kernel/events/core.c:9952 [inline]
 perf_tp_event+0x12d7/0x13a0 kernel/events/core.c:10366
 perf_trace_run_bpf_submit+0xf4/0x1c0 kernel/events/core.c:10267
 perf_trace_preemptirq_template+0x281/0x340 include/trace/events/preemptirq.h:14
 trace_irq_enable+0xbf/0xe0 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x18/0x40 kernel/trace/trace_preemptirq.c:56
 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:723
RIP: 0010:preempt_schedule_irq+0xb0/0x140 kernel/sched/core.c:7009
Code: 44 24 20 f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 63 bf 01 00 00 00 e8 8b 09 e5 f6 e8 16 93 15 f7 fb bf 01 00 00 00 <e8> db b5 ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0000:ffffc90003227da0 EFLAGS: 00000286
RAX: f9b60b5322872b00 RBX: 0000000000000000 RCX: f9b60b5322872b00
RDX: dffffc0000000000 RSI: ffffffff8aaabca0 RDI: 0000000000000001
RBP: ffffc90003227e50 R08: ffffffff8e4a94ef R09: 1ffffffff1c9529d
R10: dffffc0000000000 R11: fffffbfff1c9529e R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000644fb4
 irqentry_exit+0x67/0x70 kernel/entry/common.c:438
 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:692
RIP: 0010:exit_to_user_mode_loop+0x40/0x110 kernel/entry/common.c:164
Code: fb eb 1d e8 22 a6 fb 08 65 48 8b 05 7a 31 91 7e 4c 8b 30 41 f7 c6 0e 30 02 00 0f 84 c4 00 00 00 e8 05 6b 19 00 fb 41 f6 c6 08 <74> 05 e8 99 d2 03 09 41 f7 c6 00 10 00 00 74 08 48 89 df e8 a8 e8
RSP: 0000:ffffc90003227f10 EFLAGS: 00000202
RAX: f9b60b5322872b00 RBX: ffffc90003227f58 RCX: f9b60b5322872b00
RDX: dffffc0000000000 RSI: ffffffff8aaabca0 RDI: ffffffff8afc72c0
RBP: 0000000000000000 R08: ffffffff8e4a94ef R09: 1ffffffff1c9529d
R10: dffffc0000000000 R11: fffffbfff1c9529e R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000008 R15: ffff88802c6e0000
 exit_to_user_mode_prepare+0xf6/0x180 kernel/entry/common.c:210
 irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:315
 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:723
RIP: 0033:0x7f456bf8eba9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f456ceb7038 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f456c1d5fa0 RCX: 00007f456bf8eba9
RDX: 0000200000000400 RSI: 0000000000005452 RDI: 0000000000000008
RBP: 00007f456c011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f456c1d6038 R14: 00007f456c1d5fa0 R15: 00007ffdf401fb18
 </TASK>