rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (10499 ticks this GP) idle=15cc/0/0x1 softirq=8779/8779 fqs=16
	(t=10501 jiffies g=8501 q=80 ncpus=2)
rcu: rcu_preempt kthread starved for 10470 jiffies! g8501 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R  running task     stack:25528 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5241 [inline]
 __schedule+0x143f/0x4570 kernel/sched/core.c:6558
 schedule+0xbf/0x180 kernel/sched/core.c:6634
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </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: 3832 Comm: syz.2.29 Not tainted 6.1.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:check_preemption_disabled+0x37/0x110
Code: 8b 04 25 28 00 00 00 48 89 44 24 08 65 8b 1d d0 95 5c 75 65 8b 05 71 eb 5c 75 a9 ff ff ff 7f 74 22 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 0f 85 c7 00 00 00 89 d8 48 83 c4 10 5b 41 5c 41 5e
RSP: 0018:ffffc90000007c28 EFLAGS: 00000002
RAX: cb931caf13c9f500 RBX: 0000000000000000 RCX: ffffc90000007c03
RDX: 0000000000000001 RSI: ffffffff8b0c13e0 RDI: ffffffff8b5d62c0
RBP: ffffc90000007d90 R08: dffffc0000000000 R09: fffffbfff1d33a7e
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000000f98
R13: 0000000000000046 R14: ffffc90000007cf0 R15: dffffc0000000000
FS:  00007f9425d776c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c321c84 CR3: 0000000075868000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline]
 lock_release+0x5cb/0xa20 kernel/locking/lockdep.c:5684
 seqcount_lockdep_reader_access+0x10b/0x220 include/linux/seqlock.h:101
 ktime_get_update_offsets_now+0x38/0x420 kernel/time/timekeeping.c:2317
 hrtimer_update_base kernel/time/hrtimer.c:631 [inline]
 hrtimer_interrupt+0x12f/0x980 kernel/time/hrtimer.c:1794
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: d1 9d f5 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 0e cb ba f6 48 89 df e8 76 08 bc f6 e8 f1 98 e1 f6 fb bf 01 00 00 00 <e8> f6 98 ae f6 65 8b 05 97 a1 52 75 85 c0 74 02 5b c3 e8 44 c5 50
RSP: 0018:ffffc90003defb30 EFLAGS: 00000286
RAX: cb931caf13c9f500 RBX: ffff88807bbfd340 RCX: ffffffff91f33103
RDX: dffffc0000000000 RSI: ffffffff8b0c0260 RDI: 0000000000000001
RBP: ffffc90003defc70 R08: dffffc0000000000 R09: ffffed100f77fa69
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100f77fafb
R13: 000000001c000004 R14: 0000000000000021 R15: ffff88807bbfd7d8
 spin_unlock_irq include/linux/spinlock.h:401 [inline]
 get_signal+0x154b/0x17d0 kernel/signal.c:2873
 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f9424f79e77
Code: ff ff 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
RSP: 002b:00007f9425d77038 EFLAGS: 00000246
RAX: 0000000000000113 RBX: 00007f9425115f80 RCX: 00007f9424f79e79
RDX: 000000000000000d RSI: 0000000000000000 RDI: 000000000000000b
RBP: 00007f9424fe793e R08: 0000000008000f28 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9425115f80 R15: 00007fffacdbdad8
 </TASK>
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.1.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:112 [inline]
RIP: 0010:acpi_idle_do_entry+0x10f/0x340 drivers/acpi/processor_idle.c:567
Code: e3 da f6 48 83 e3 08 0f 85 0b 01 00 00 4c 8d 74 24 20 e8 94 a2 e1 f6 0f 1f 44 00 00 e8 ba df da f6 0f 00 2d 13 c4 b7 00 fb f4 <4c> 89 f3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 f7 e8 2b 5b 32 f7
RSP: 0018:ffffc90000177b80 EFLAGS: 000002d3
RAX: ffffffff8aafc406 RBX: 0000000000000000 RCX: ffff888012b49dc0
RDX: 0000000000000000 RSI: ffffffff8b0c0260 RDI: ffffffff8b5d62c0
RBP: ffffc90000177c10 R08: ffffffff8aafc3e8 R09: ffffed10025693b9
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200002ef70
R13: ffff888148a98004 R14: ffffc90000177ba0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9425d56d58 CR3: 0000000075868000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 acpi_idle_enter+0x352/0x4f0 drivers/acpi/processor_idle.c:704
 cpuidle_enter_state+0x516/0xf80 drivers/cpuidle/cpuidle.c:239
 cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:356
 call_cpuidle kernel/sched/idle.c:155 [inline]
 cpuidle_idle_call kernel/sched/idle.c:236 [inline]
 do_idle+0x3ce/0x680 kernel/sched/idle.c:303
 cpu_startup_entry+0x3d/0x60 kernel/sched/idle.c:401
 start_secondary+0xe4/0xf0 arch/x86/kernel/smpboot.c:281
 secondary_startup_64_no_verify+0xcf/0xdb
 </TASK>