rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (1 ticks this GP) idle=aea4/1/0x4000000000000000 softirq=62148/62148 fqs=0
rcu: 	(detected by 0, t=10502 jiffies, g=63769, q=356 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 11460 Comm: syz-executor.2 Not tainted 6.9.0-rc6-syzkaller-00131-gf03359bca01b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:kasan_check_range+0x1b8/0x290 mm/kasan/generic.c:189
Code: 4d 01 fb 48 8d 5d 07 48 85 ed 48 0f 49 dd 48 83 e3 f8 48 29 dd 74 12 41 80 3b 00 0f 85 a6 00 00 00 49 ff c3 48 ff cd 75 ee 5b <41> 5c 41 5e 41 5f 5d c3 cc cc cc cc 40 84 ed 75 5f f7 c5 00 ff 00
RSP: 0018:ffffc90000a08a20 EFLAGS: 00000056
RAX: 0000000000000001 RBX: 0000000000000912 RCX: ffffffff8172ffba
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff92f35620
RBP: 0000000000000000 R08: ffffffff92f35627 R09: 1ffffffff25e6ac4
R10: dffffc0000000000 R11: fffffbfff25e6ac5 R12: 0000000000000001
R13: dffffc0000000000 R14: dffffc0000000001 R15: fffffbfff25e6ac5
FS:  00007fe26058c6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000180 CR3: 000000002ec52000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 hlock_class kernel/locking/lockdep.c:228 [inline]
 mark_lock+0x9a/0x350 kernel/locking/lockdep.c:4656
 mark_usage kernel/locking/lockdep.c:4599 [inline]
 __lock_acquire+0xc0a/0x1fd0 kernel/locking/lockdep.c:5091
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 class_spinlock_constructor include/linux/spinlock.h:561 [inline]
 snd_hrtimer_callback+0x54/0x370 sound/core/hrtimer.c:38
 __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
 __hrtimer_run_queues+0x5a5/0xd50 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 ee 8f 6f f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> d3 8c da f5 65 8b 05 34 a8 78 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc90004d37a00 EFLAGS: 00000206
RAX: c2b585b75eb65300 RBX: 1ffff920009a6f44 RCX: ffffffff8172ffba
RDX: dffffc0000000000 RSI: ffffffff8bcab8a0 RDI: 0000000000000001
RBP: ffffc90004d37a90 R08: ffffffff92f35637 R09: 1ffffffff25e6ac6
R10: dffffc0000000000 R11: fffffbfff25e6ac7 R12: dffffc0000000000
R13: 1ffff920009a6f40 R14: ffffc90004d37a20 R15: 0000000000000246
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 class_spinlock_irqsave_destructor include/linux/spinlock.h:574 [inline]
 snd_timer_stop1+0x7e6/0x950 sound/core/timer.c:634
 __snd_timer_user_ioctl+0x84e/0x52f0
 snd_timer_user_ioctl+0x65/0xa0 sound/core/timer.c:2058
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:904 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:890
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe25f87dd29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe26058c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fe25f9abf80 RCX: 00007fe25f87dd29
RDX: 0000000000000000 RSI: 00000000000054a3 RDI: 0000000000000007
RBP: 00007fe25f8ca47e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fe25f9abf80 R15: 00007fe25facfa98
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g63769 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=22291
rcu: rcu_preempt kthread starved for 10502 jiffies! g63769 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:25968 pid:16    tgid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6838
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2582
 rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:1663
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1862
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
vkms_vblank_simulate: vblank timer overrun