rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (0 ticks this GP) idle=017/1/0x4000000000000000 softirq=18571/18571 fqs=0 
	(detected by 1, t=10506 jiffies, g=23061, q=483)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6141 Comm: syz.0.562 Not tainted 5.15.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:lock_release+0x662/0x9a0 kernel/locking/lockdep.c:5647
Code: 27 08 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 e0 00 00 00 0f 85 10 03 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f <5d> c3 0f 0b e9 26 fa ff ff 0f 0b 48 c7 c7 00 2a 8b 8a e8 97 e9 bb
RSP: 0018:ffffc90000007c10 EFLAGS: 00000046
RAX: 3d72124b6f6f8c00 RBX: ffffffff91611f00 RCX: ffffc90000007b03
RDX: 0000000000000002 RSI: ffffffff8a8b3ca0 RDI: ffffffff8ad8f700
RBP: ffffc90000007c10 R08: dffffc0000000000 R09: fffffbfff1bc8ede
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000000f84 R14: ffffc90000007c40 R15: 0000000000000046
FS:  00007f93838146c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020003c80 CR3: 0000000019db6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:158 [inline]
 _raw_spin_unlock_irqrestore+0x75/0x130 kernel/locking/spinlock.c:194
 debug_object_activate+0x2f4/0x4e0 lib/debugobjects.c:711
 debug_hrtimer_activate kernel/time/hrtimer.c:420 [inline]
 debug_activate kernel/time/hrtimer.c:475 [inline]
 enqueue_hrtimer+0x30/0x390 kernel/time/hrtimer.c:1084
 __run_hrtimer kernel/time/hrtimer.c:1703 [inline]
 __hrtimer_run_queues+0x6b6/0xcf0 kernel/time/hrtimer.c:1750
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
 __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:raw_spin_rq_unlock_irq+0x19/0x80 kernel/sched/sched.h:1339
Code: 38 c1 7c cb 4c 89 f7 e8 a5 96 70 00 eb c1 0f 1f 00 41 57 41 56 53 48 89 fb 66 90 48 89 df e8 ce 91 ce 08 e8 59 44 2d 00 fb 5b <41> 5e 41 5f c3 49 bf 00 00 00 00 00 fc ff df 4c 8d b3 58 0d 00 00
RSP: 0018:ffffc90003ce7848 EFLAGS: 00000286
RAX: 3d72124b6f6f8c00 RBX: ffff8880b9a3a340 RCX: ffffffff816319a8
RDX: dffffc0000000000 RSI: ffffffff8a8b2a00 RDI: ffffffff8ad8f700
RBP: ffffc90003ce7a30 R08: dffffc0000000000 R09: fffffbfff1f7f419
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807e8ad940
R13: dffffc0000000000 R14: ffff88807e8ad940 R15: ffff88807e8ad9c0
 __schedule+0x1462/0x45b0 kernel/sched/core.c:6382
 preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:6552
 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6577
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
 _raw_spin_unlock_irqrestore+0x128/0x130 kernel/locking/spinlock.c:194
 clock_was_set+0x67d/0x880 kernel/time/hrtimer.c:970
 do_settimeofday64+0x673/0x7e0 kernel/time/timekeeping.c:1328
 __do_sys_clock_settime kernel/time/posix-timers.c:1124 [inline]
 __se_sys_clock_settime kernel/time/posix-timers.c:1112 [inline]
 __x64_sys_clock_settime+0x232/0x270 kernel/time/posix-timers.c:1112
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9385393f19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9383814048 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00007f9385523f60 RCX: 00007f9385393f19
RDX: 0000000000000000 RSI: 0000000020003c80 RDI: 0000000000000000
RBP: 00007f9385402e68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f9385523f60 R15: 00007ffc910e04f8
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10505 jiffies! g23061 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=11732
rcu: rcu_preempt kthread starved for 10506 jiffies! g23061 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
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:26816 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1914
 rcu_gp_fqs_loop+0x2bf/0x1080 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2145
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6141 Comm: syz.0.562 Not tainted 5.15.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:__preempt_count_add kernel/rcu/tree.c:1119 [inline]
RIP: 0010:rcu_is_watching+0x0/0xa0 kernel/rcu/tree.c:1122
Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 fa 97 b3 08 41 f7 c4 00 02 00 00 75 b4 eb b3 e8 da 97 b3 08 66 2e 0f 1f 84 00 00 00 00 00 <41> 57 41 56 53 65 ff 05 2c 5a 97 7e e8 7f ab b3 08 89 c3 83 f8 08
RSP: 0018:ffffc90000007d58 EFLAGS: 00000002
RAX: 0000000000010001 RBX: 0000000000000001 RCX: ffffffff816f664e
RDX: ffff88807e8ad940 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000007eb0 R08: ffffffff816f6676 R09: fffffbfff1bc8ede
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b9a2a200
R13: ffffffff886ca1b0 R14: ffff88801f1bbb40 R15: dffffc0000000001
FS:  00007f93838146c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020003c80 CR3: 0000000019db6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 trace_hrtimer_expire_entry include/trace/events/timer.h:236 [inline]
 __run_hrtimer kernel/time/hrtimer.c:1683 [inline]
 __hrtimer_run_queues+0x500/0xcf0 kernel/time/hrtimer.c:1750
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
 __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:raw_spin_rq_unlock_irq+0x19/0x80 kernel/sched/sched.h:1339
Code: 38 c1 7c cb 4c 89 f7 e8 a5 96 70 00 eb c1 0f 1f 00 41 57 41 56 53 48 89 fb 66 90 48 89 df e8 ce 91 ce 08 e8 59 44 2d 00 fb 5b <41> 5e 41 5f c3 49 bf 00 00 00 00 00 fc ff df 4c 8d b3 58 0d 00 00
RSP: 0018:ffffc90003ce7848 EFLAGS: 00000286
RAX: 3d72124b6f6f8c00 RBX: ffff8880b9a3a340 RCX: ffffffff816319a8
RDX: dffffc0000000000 RSI: ffffffff8a8b2a00 RDI: ffffffff8ad8f700
RBP: ffffc90003ce7a30 R08: dffffc0000000000 R09: fffffbfff1f7f419
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807e8ad940
R13: dffffc0000000000 R14: ffff88807e8ad940 R15: ffff88807e8ad9c0
 __schedule+0x1462/0x45b0 kernel/sched/core.c:6382
 preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:6552
 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6577
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
 _raw_spin_unlock_irqrestore+0x128/0x130 kernel/locking/spinlock.c:194
 clock_was_set+0x67d/0x880 kernel/time/hrtimer.c:970
 do_settimeofday64+0x673/0x7e0 kernel/time/timekeeping.c:1328
 __do_sys_clock_settime kernel/time/posix-timers.c:1124 [inline]
 __se_sys_clock_settime kernel/time/posix-timers.c:1112 [inline]
 __x64_sys_clock_settime+0x232/0x270 kernel/time/posix-timers.c:1112
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9385393f19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9383814048 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00007f9385523f60 RCX: 00007f9385393f19
RDX: 0000000000000000 RSI: 0000000020003c80 RDI: 0000000000000000
RBP: 00007f9385402e68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f9385523f60 R15: 00007ffc910e04f8
 </TASK>
vkms_vblank_simulate: vblank timer overrun