rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...0: (1 GPs behind) idle=215/1/0x4000000000000000 softirq=9450/9451 fqs=5250 
	(detected by 0, t=10502 jiffies, g=10105, q=995)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5106 Comm: sed Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:find_held_lock kernel/locking/lockdep.c:5113 [inline]
RIP: 0010:__lock_release kernel/locking/lockdep.c:5300 [inline]
RIP: 0010:lock_release+0x1d1/0x870 kernel/locking/lockdep.c:5643
Code: 04 00 00 41 8b 0e 85 c9 0f 84 10 02 00 00 4c 89 64 24 40 4c 89 34 24 4c 89 7c 24 20 44 8d 79 ff 48 8d 9f f0 0a 00 00 4d 63 f7 <48> 89 4c 24 28 83 f9 32 0f 83 ca 04 00 00 4b 8d 04 b6 4c 8d 24 c3
RSP: 0000:ffffc9000343faa0 EFLAGS: 00000002
RAX: 0000000000000000 RBX: ffff888029f7e430 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8a0b29e0 RDI: ffff888029f7d940
RBP: ffffc9000343fbb0 R08: dffffc0000000000 R09: fffffbfff1ad26b6
R10: fffffbfff1ad26b6 R11: 1ffffffff1ad26b5 R12: 1ffff110053efc85
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f7c598e9c80(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7c59b857b0 CR3: 000000005daa5000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:158 [inline]
 _raw_spin_unlock_irqrestore+0x6d/0x100 kernel/locking/spinlock.c:194
 __run_hrtimer kernel/time/hrtimer.c:1681 [inline]
 __hrtimer_run_queues+0x441/0xc40 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x3bb/0x8d0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1108
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0033:0x7f7c59a3412e
Code: ff eb a0 66 0f 1f 84 00 00 00 00 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 28 83 7f 70 ff 0f 85 a6 01 00 00 48 89 d0 0f b6 12 <48> 89 fb 41 89 c9 80 fa 72 0f 84 a3 03 00 00 80 fa 77 0f 84 a2 01
RSP: 002b:00007fffbb576440 EFLAGS: 00000246
RAX: 00007f7c5997e3ae RBX: 000055b32b0772a0 RCX: 0000000000000001
RDX: 0000000000000072 RSI: 00007f7c5997e2e2 RDI: 000055b32b0772a0
RBP: 000055b32b0772a0 R08: 00007f7c59b821e8 R09: 00000000000001e0
R10: 0000000000000004 R11: 0000000000000000 R12: 00007f7c5997e2e2
R13: 00007f7c5997e3ae R14: 0000000000000001 R15: 0000000000000000
 </TASK>