rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (2 ticks this GP) idle=ed9/1/0x4000000000000000 softirq=40010/40010 fqs=5247 
	(detected by 1, t=10502 jiffies, g=59169, q=1467)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 14256 Comm: syz.1.2802 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:check_wait_context kernel/locking/lockdep.c:-1 [inline]
RIP: 0010:__lock_acquire+0x5a6/0x7d10 kernel/locking/lockdep.c:4962
Code: a4 d0 14 00 0f 84 fe 01 00 00 31 db 48 81 c3 b8 00 00 00 48 89 d8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 33 62 00 00 44 0f b6 33 <48> 8b 44 24 58 0f b6 04 10 84 c0 0f 85 42 62 00 00 41 8b 04 24 89
RSP: 0000:ffffc90000007280 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffffff8fb5dff8 RCX: ffffffff815d1b1a
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff901d50c0
RBP: ffffc900000074d0 R08: ffffffff901d50c7 R09: 1ffffffff203aa18
R10: dffffc0000000000 R11: fffffbfff203aa19 R12: ffff888024ba6478
R13: ffff888024ba5940 R14: 0000000000000002 R15: ffff888024ba6458
FS:  00007fb43b2306c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a078e200c8 CR3: 0000000022bc8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:313
 rcu_read_lock include/linux/rcupdate.h:740 [inline]
 __perf_event_output kernel/events/core.c:7800 [inline]
 perf_event_output_forward+0xbc/0x2e0 kernel/events/core.c:7822
 __perf_event_overflow+0x364/0x530 kernel/events/core.c:9515
 perf_tp_event+0x383/0xbf0 kernel/events/core.c:10047
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10021
 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 32 e1 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:ffffc90000007c60 EFLAGS: 00000206
RAX: e51e7abf9b659600 RBX: 1ffff92000000f90 RCX: e51e7abf9b659600
RDX: dffffc0000000000 RSI: ffffffff8a2b2800 RDI: ffffffff8a79fe00
RBP: ffffc90000007d28 R08: ffff8880b903b30b R09: 1ffff11017207661
R10: dffffc0000000000 R11: ffffed1017207662 R12: ffffffff8c323000
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]
 rebalance_domains+0xa0a/0xb30 kernel/sched/fair.c:10660
 handle_softirqs+0x339/0x830 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:__schedule+0x123b/0x43c0 kernel/sched/core.c:6403
Code: e0 45 4a c7 04 28 00 00 00 00 42 c7 44 28 08 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 80 01 00 00 0f 85 1a 03 00 00 <48> 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 49 8d be c8 05 00 00
RSP: 0000:ffffc9000326f800 EFLAGS: 00000246
RAX: e51e7abf9b659600 RBX: ffff88801d4a5940 RCX: ffffffff81532a34
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888077547760
RBP: ffffc9000326f9d0 R08: ffff888077547763 R09: 1ffff1100eea8eec
R10: dffffc0000000000 R11: ffffed100eea8eed R12: ffff888024ba5e58
R13: dffffc0000000000 R14: 1ffff11004974bcb R15: ffff888024ba5e50
 preempt_schedule_irq+0xbb/0x160 kernel/sched/core.c:6799
 irqentry_exit+0x63/0x70 kernel/entry/common.c:432
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
RIP: 0010:atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:167 [inline]
RIP: 0010:__refcount_sub_and_test include/linux/refcount.h:272 [inline]
RIP: 0010:__refcount_dec_and_test include/linux/refcount.h:315 [inline]
RIP: 0010:refcount_dec_and_test include/linux/refcount.h:333 [inline]
RIP: 0010:put_task_struct include/linux/sched/task.h:116 [inline]
RIP: 0010:wake_up_q+0x7f/0xc0 kernel/sched/core.c:954
Code: cb 6b 00 4c 8d b3 b0 f5 ff ff 4c 8b 2b 48 c7 03 00 00 00 00 4c 89 f7 be 03 00 00 00 31 d2 e8 18 6c 00 00 4c 8d bb d8 f5 ff ff <4c> 89 ff be 04 00 00 00 e8 d4 cc 6b 00 b8 ff ff ff ff f0 0f c1 83
RSP: 0000:ffffc9000326fb50 EFLAGS: 00000286
RAX: 0000000000000001 RBX: ffff88807f072810 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffffff8a2b2800 RDI: 00000000ffffffff
RBP: ffffc9000326fc70 R08: ffff8880b903b30b R09: 1ffff11017207661
R10: dffffc0000000000 R11: ffffed1017207662 R12: dffffc0000000000
R13: 0000000000000001 R14: ffff88807f071dc0 R15: ffff88807f071de8
 futex_wake+0x4a9/0x540 kernel/futex/core.c:1702
 do_futex+0xd73/0x12b0 kernel/futex/core.c:3988
 __do_sys_futex kernel/futex/core.c:4060 [inline]
 __se_sys_futex+0x389/0x420 kernel/futex/core.c:4041
 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: 0033:0x7fb43cfd6dd9
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:00007fb43b2300e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fb43d24ffa8 RCX: 00007fb43cfd6dd9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fb43d24ffac
RBP: 00007fb43d24ffa0 R08: 00358cec5b0211f8 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb43d250038 R14: 00007ffd4aa917b0 R15: 00007ffd4aa91898
 </TASK>