rcu: INFO: rcu_sched self-detected stall on CPU
rcu: 	1-...!: (3 ticks this GP) idle=41a/0/0x1 softirq=4738/4738 fqs=0 
	(t=11488 jiffies g=2673 q=226)
rcu: rcu_sched kthread starved for 11488 jiffies! g2673 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
rcu: 	Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_sched       state:I stack:14696 pid:   10 ppid:     2 flags:0x00004000
Call Trace:
 context_switch kernel/sched/core.c:3778 [inline]
 __schedule+0x2cd/0x740 kernel/sched/core.c:4527
 schedule+0x3b/0xa0 kernel/sched/core.c:4602
 schedule_timeout+0x2b2/0x410 kernel/time/timer.c:1879
 rcu_gp_fqs_loop kernel/rcu/tree.c:1888 [inline]
 rcu_gp_kthread+0x460/0x980 kernel/rcu/tree.c:2058
 kthread+0x149/0x170 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.9.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x97/0xce lib/dump_stack.c:118
 nmi_cpu_backtrace.cold.8+0x18/0x64 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x140/0x145 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x89/0xb5 kernel/rcu/tree_stall.h:318
 print_cpu_stall kernel/rcu/tree_stall.h:551 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:625 [inline]
 rcu_pending kernel/rcu/tree.c:3637 [inline]
 rcu_sched_clock_irq.cold.90+0x101/0x358 kernel/rcu/tree.c:2519
 update_process_times+0x25/0x70 kernel/time/timer.c:1710
 tick_sched_handle.isra.21+0x47/0xa0 kernel/time/tick-sched.c:176
 tick_sched_timer+0x98/0xb0 kernel/time/tick-sched.c:1328
 __run_hrtimer kernel/time/hrtimer.c:1524 [inline]
 __hrtimer_run_queues+0x1b0/0x480 kernel/time/hrtimer.c:1588
 hrtimer_interrupt+0x11b/0x290 kernel/time/hrtimer.c:1650
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
 __sysvec_apic_timer_interrupt+0x63/0x120 arch/x86/kernel/apic/apic.c:1097
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline]
 sysvec_apic_timer_interrupt+0x6d/0x80 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:49 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:89 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:112 [inline]
RIP: 0010:acpi_safe_halt+0x45/0x50 drivers/acpi/processor_idle.c:108
Code: 48 89 de e8 bd 28 b9 fe 48 85 db 75 1e e8 73 27 b9 fe e9 0c 00 00 00 e8 69 27 b9 fe 0f 00 2d 3c 3c 62 00 e8 5d 27 b9 fe fb f4 <fa> 5b e9 54 27 b9 fe 0f 1f 40 00 55 48 89 fd 53 e8 46 27 b9 fe 0f
RSP: 0018:ffffc90000073de0 EFLAGS: 00000293
RAX: ffff888236db3080 RBX: 0000000000000000 RCX: ffffffff826a0f93
RDX: 0000000000000000 RSI: ffffffff826a0fb3 RDI: 0000000000000007
RBP: ffff888234afd064 R08: ffff888236db3080 R09: ffff888236db3920
R10: 0000000000000001 R11: 0000000000019000 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000001 R15: 000000007fffffff
 acpi_idle_do_entry+0x8d/0xa0 drivers/acpi/processor_idle.c:524
 acpi_idle_enter+0x150/0x460 drivers/acpi/processor_idle.c:650
 cpuidle_enter_state+0xe8/0x680 drivers/cpuidle/cpuidle.c:243
 cpuidle_enter+0x29/0x40 drivers/cpuidle/cpuidle.c:355
 call_cpuidle kernel/sched/idle.c:132 [inline]
 cpuidle_idle_call kernel/sched/idle.c:213 [inline]
 do_idle+0x238/0x280 kernel/sched/idle.c:273
 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:369
 start_secondary+0xf8/0x130 arch/x86/kernel/smpboot.c:266
 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243