rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=be8c/1/0x4000000000000000 softirq=0/0 fqs=5247 rcuc=10423 jiffies(starved)
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:     5700          0           10
rcu: 	cputime:      130      52359           13   ==> 52500(ms)
rcu: 	(t=10501 jiffies g=22649 q=17117 ncpus=2)
CPU: 0 UID: 0 PID: 16 Comm: ktimers/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110 kernel/locking/spinlock.c:194
Code: 74 05 e8 db 40 cc f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 23 fc 95 f6 65 8b 05 7c 1d fc 06 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc90000157780 EFLAGS: 00000206
RAX: 5737d86f57b3e500 RBX: 0000000000000a06 RCX: 5737d86f57b3e500
RDX: 0000000000000002 RSI: ffffffff8d038501 RDI: 0000000000000001
RBP: ffffc90000157810 R08: ffffffff8f1d4537 R09: 1ffffffff1e3a8a6
R10: dffffc0000000000 R11: fffffbfff1e3a8a7 R12: dffffc0000000000
R13: ffffc90000157868 R14: ffff88805b410428 R15: 1ffff9200002aef0
FS:  0000000000000000(0000) GS:ffff8881268c2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562530638860 CR3: 000000000d7a6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 raw_spin_unlock_irqrestore_wake include/linux/sched/wake_q.h:94 [inline]
 rtlock_slowlock kernel/locking/rtmutex.c:1896 [inline]
 rtlock_lock kernel/locking/spinlock_rt.c:43 [inline]
 __rt_spin_lock kernel/locking/spinlock_rt.c:49 [inline]
 rt_spin_lock+0x167/0x2c0 kernel/locking/spinlock_rt.c:57
 spin_lock include/linux/spinlock_rt.h:44 [inline]
 advance_sched+0xca/0xc90 net/sched/sch_taprio.c:929
 __run_hrtimer kernel/time/hrtimer.c:1761 [inline]
 __hrtimer_run_queues+0x54f/0xd40 kernel/time/hrtimer.c:1825
 hrtimer_run_softirq+0x1a3/0x2e0 kernel/time/hrtimer.c:1842
 handle_softirqs+0x22c/0x710 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 run_ktimerd+0xcf/0x190 kernel/softirq.c:1043
 smpboot_thread_fn+0x542/0xa60 kernel/smpboot.c:160
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>