rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10501 ticks this GP) idle=ab84/1/0x4000000000000000 softirq=11649/1618876 fqs=5247
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   817602     810436            0
rcu: 	cputime:      882      50811          787   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=11589 q=497 ncpus=2)
CPU: 1 PID: 6448 Comm: syz-executor259 Not tainted 6.6.101-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:check_buffer+0x533/0x950 kernel/trace/ring_buffer.c:3512
Code: e8 74 52 49 09 c7 4c 89 ff 48 89 de e8 36 fa fc ff 49 39 df 48 8b 2c 24 72 46 e8 18 f8 fc ff eb 10 e8 11 f8 fc ff 48 8b 2c 24 <41> c1 ef 05 49 01 df 4c 89 e7 e8 4e c2 fe ff 41 01 c6 4d 63 e6 4c
RSP: 0018:ffffc900001f0478 EFLAGS: 00000246
RAX: ffffffff81889b4a RBX: 0000002f5c8af4be RCX: ffff88807cce3c00
RDX: 0000000000000100 RSI: ffffffff8cd797a0 RDI: 0000000000000004
RBP: 00000000000001f4 R08: ffff88807cce3c00 R09: 0000000000000020
R10: 000000000000001f R11: 0000000000000100 R12: ffff88801ca7e010
R13: f800000000000000 R14: 0000000000000000 R15: 0000000000000004
FS:  00005555577263c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f490d9add58 CR3: 000000007da9c000 CR4: 00000000003506e0
Call Trace:
 <IRQ>
 __rb_reserve_next+0x511/0xd50 kernel/trace/ring_buffer.c:3624
 rb_reserve_next_event kernel/trace/ring_buffer.c:3759 [inline]
 ring_buffer_lock_reserve+0xae1/0xed0 kernel/trace/ring_buffer.c:3818
 __trace_buffer_lock_reserve kernel/trace/trace.c:992 [inline]
 trace_event_buffer_lock_reserve+0x1d0/0x6e0 kernel/trace/trace.c:2902
 trace_event_buffer_reserve+0x29b/0x3c0 kernel/trace/trace_events.c:661
 do_trace_event_raw_event_bpf_trace_printk kernel/trace/bpf_trace.h:11 [inline]
 trace_event_raw_event_bpf_trace_printk+0x101/0x210 kernel/trace/bpf_trace.h:11
 trace_bpf_trace_printk+0x142/0x1a0 kernel/trace/bpf_trace.h:11
 ____bpf_trace_printk kernel/trace/bpf_trace.c:388 [inline]
 bpf_trace_printk+0x11f/0x190 kernel/trace/bpf_trace.c:371
 bpf_prog_9e1c00255e17e72e+0x38/0x3a
 bpf_dispatcher_nop_func include/linux/bpf.h:1213 [inline]
 __bpf_prog_run include/linux/filter.h:612 [inline]
 bpf_prog_run include/linux/filter.h:619 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2322 [inline]
 bpf_trace_run1+0x1c9/0x3b0 kernel/trace/bpf_trace.c:2360
 __bpf_trace_rcu_utilization+0xa2/0xe0 include/trace/events/rcu.h:27
 __traceiter_rcu_utilization+0x70/0xa0 include/trace/events/rcu.h:27
 trace_rcu_utilization+0x179/0x1a0 include/trace/events/rcu.h:27
 rcu_core+0x12d/0x1720 kernel/rcu/tree.c:2439
 handle_softirqs+0x280/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xc7/0x190 kernel/softirq.c:661
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0xa1/0xc0 arch/x86/kernel/irq_work.c:17
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:723
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xa9/0x110 kernel/locking/spinlock.c:194
Code: 74 05 e8 fa 37 15 f7 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 22 b3 e4 f6 65 8b 05 23 f9 8c 75 85 c0 74 3c 48 c7 04 24 0e 36
RSP: 0018:ffffc90004f47ca0 EFLAGS: 00000206
RAX: b79f766dff26fc00 RBX: 0000000000000a06 RCX: b79f766dff26fc00
RDX: dffffc0000000000 RSI: ffffffff8aaaba40 RDI: 0000000000000001
RBP: ffffc90004f47d30 R08: ffffffff8e4a84ef R09: 1ffffffff1c9509d
R10: dffffc0000000000 R11: fffffbfff1c9509e R12: dffffc0000000000
R13: ffffc90004f47d80 R14: ffffffff97157080 R15: 1ffff920009e8f94
 hrtimer_init_sleeper_on_stack kernel/time/hrtimer.c:475 [inline]
 hrtimer_nanosleep+0xac/0x350 kernel/time/hrtimer.c:2160
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1397 [inline]
 __se_sys_clock_nanosleep+0x2ea/0x370 kernel/time/posix-timers.c:1374
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f490da3a045
Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 46 8d ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 9f 8d ff ff 48 8b 04 24 48 83 c4 28 f7 d8
RSP: 002b:00007ffd87d4aa70 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000000000000063 RCX: 00007f490da3a045
RDX: 00007ffd87d4aab0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000226 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000018022
R13: 00007f490da9733c R14: 0000000000018248 R15: 00000000000003e8
 </TASK>