rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (2 ticks this GP) idle=f9f/1/0x4000000000000002 softirq=89714/89716 fqs=5249 
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P29390
	(detected by 1, t=10502 jiffies, g=132389, q=593)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 29390 Comm: syz.5.6607 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:perf_swevent_event+0x245/0x530 kernel/events/core.c:9623
Code: 08 00 74 08 48 89 df e8 19 43 25 00 48 8b 1b bf 01 00 00 00 48 89 de e8 b9 e0 e0 ff 48 83 fb 01 0f 85 c0 00 00 00 48 8b 04 24 <48> 8d 98 00 01 00 00 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc
RSP: 0018:ffffc9000352f328 EFLAGS: 00000046
RAX: ffff88805d8e5390 RBX: 0000000000000001 RCX: ffff88807b283b80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8880b90350d0 R08: dffffc0000000000 R09: ffffed100f650771
R10: ffffed100f650771 R11: 1ffff1100f650770 R12: 0000000000000001
R13: ffff88805d8e5580 R14: 1ffff1100bb1cab0 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000002020 CR3: 000000001e714000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000200000000300
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 perf_tp_event+0x32c/0xb50 kernel/events/core.c:10047
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10021
 perf_trace_preemptirq_template+0x2be/0x380 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+0x84/0x480 kernel/rcu/tree_plugin.h:674
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 dd 13 9e 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc9000352f840 EFLAGS: 00000206
RAX: 8b69778da138af00 RBX: 1ffff920006a5f0c RCX: 8b69778da138af00
RDX: dffffc0000000000 RSI: ffffffff8a0b1620 RDI: ffffffff8a59a240
RBP: ffffc9000352f918 R08: dffffc0000000000 R09: fffffbfff1ff761a
R10: fffffbfff1ff761a R11: 1ffffffff1ff7619 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000246 R15: ffffffff8c1209a0
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock+0x85/0x90 include/linux/rcupdate.h:771
 dput+0xc0/0x1a0 fs/dcache.c:886
 __fput+0x5ee/0x930 fs/file_table.c:319
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0x61e/0x20a0 kernel/exit.c:883
 do_group_exit+0x12e/0x300 kernel/exit.c:997
 get_signal+0x6ca/0x12c0 kernel/signal.c:2900
 arch_do_signal_or_restart+0xc1/0x1300 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0x9e/0x130 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7efee8e73be9
Code: Unable to access opcode bytes at RIP 0x7efee8e73bbf.
RSP: 002b:00007efee70db038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 00000000000000d8 RBX: 00007efee90aafa0 RCX: 00007efee8e73be9
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000004
RBP: 00007efee8ef6e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efee90ab038 R14: 00007efee90aafa0 R15: 00007ffe8924e328
 </TASK>
task:syz.5.6607      state:R  running task     stack:25384 pid:29390 ppid: 25325 flags:0x0000400a
Call Trace:
 <TASK>
 </TASK>