rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 0, t=10502 jiffies, g=87413, q=953)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4295001557-4294991055), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g87413 f0x2 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:26544 pid:   14 ppid:     2 flags:0x00004000
Call Trace:
 context_switch kernel/sched/core.c:4940 [inline]
 __schedule+0xb72/0x1460 kernel/sched/core.c:6287
 schedule+0x14b/0x210 kernel/sched/core.c:6366
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1881
 rcu_gp_fqs_loop+0x1fd/0x770 kernel/rcu/tree.c:1957
 rcu_gp_kthread+0xa5/0x350 kernel/rcu/tree.c:2130
 kthread+0x453/0x480 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 0
CPU: 0 PID: 24593 Comm: syz-executor.4 Not tainted 5.15.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_check_gp_kthread_starvation+0x1ff/0x270 kernel/rcu/tree_stall.h:481
 print_other_cpu_stall kernel/rcu/tree_stall.h:586 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:729 [inline]
 rcu_pending kernel/rcu/tree.c:3880 [inline]
 rcu_sched_clock_irq+0x23d5/0x2bc0 kernel/rcu/tree.c:2599
 update_process_times+0x197/0x200 kernel/time/timer.c:1785
 tick_sched_handle kernel/time/tick-sched.c:226 [inline]
 tick_sched_timer+0x27d/0x420 kernel/time/tick-sched.c:1421
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4cb/0xa60 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x3b3/0x1040 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0xf9/0x270 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:vmx_do_interrupt_nmi_irqoff+0x10/0x20
Code: 41 5b 41 5a 41 59 41 58 5e 5f 5a 59 58 5d c3 66 2e 0f 1f 84 00 00 00 00 00 90 55 48 89 e5 48 83 e4 f0 6a 18 55 9c 6a 10 ff d7 <48> 89 ec 5d c3 cc cc cc cc cc cc cc cc cc cc cc 55 41 56 53 48 89
RSP: 0018:ffffc9000bf0f430 EFLAGS: 00000086
RAX: 0000000000000000 RBX: ffffffff8a000bf0 RCX: 0000000000040000
RDX: 0000000000000bf0 RSI: 0000000000000001 RDI: ffffffff8a000bf0
RBP: ffffc9000bf0f430 R08: ffffffff8124e123 R09: ffffed100887284d
R10: ffffed100887284d R11: 0000000000000000 R12: fffffe0000000ecb
R13: dffffc0000000000 R14: ffff888044394000 R15: fffffe0000000ec8
 handle_interrupt_nmi_irqoff arch/x86/kvm/vmx/vmx.c:6347 [inline]
 handle_external_interrupt_irqoff+0x1ce/0x410 arch/x86/kvm/vmx/vmx.c:6377
 vcpu_enter_guest+0x67b4/0x9650 arch/x86/kvm/x86.c:9701
 vcpu_run+0x4d3/0xe50 arch/x86/kvm/x86.c:9819
 kvm_arch_vcpu_ioctl_run+0x5c0/0xdb0 arch/x86/kvm/x86.c:10051
 kvm_vcpu_ioctl+0x894/0xe20 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3779
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f09502c1ae9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f094d837188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f09503d4f60 RCX: 00007f09502c1ae9
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
RBP: 00007f095031bf25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff8751df7f R14: 00007f094d837300 R15: 0000000000022000
----------------
Code disassembly (best guess):
   0:	41 5b                	pop    %r11
   2:	41 5a                	pop    %r10
   4:	41 59                	pop    %r9
   6:	41 58                	pop    %r8
   8:	5e                   	pop    %rsi
   9:	5f                   	pop    %rdi
   a:	5a                   	pop    %rdx
   b:	59                   	pop    %rcx
   c:	58                   	pop    %rax
   d:	5d                   	pop    %rbp
   e:	c3                   	retq
   f:	66 2e 0f 1f 84 00 00 	nopw   %cs:0x0(%rax,%rax,1)
  16:	00 00 00
  19:	90                   	nop
  1a:	55                   	push   %rbp
  1b:	48 89 e5             	mov    %rsp,%rbp
  1e:	48 83 e4 f0          	and    $0xfffffffffffffff0,%rsp
  22:	6a 18                	pushq  $0x18
  24:	55                   	push   %rbp
  25:	9c                   	pushfq
  26:	6a 10                	pushq  $0x10
  28:	ff d7                	callq  *%rdi
* 2a:	48 89 ec             	mov    %rbp,%rsp <-- trapping instruction
  2d:	5d                   	pop    %rbp
  2e:	c3                   	retq
  2f:	cc                   	int3
  30:	cc                   	int3
  31:	cc                   	int3
  32:	cc                   	int3
  33:	cc                   	int3
  34:	cc                   	int3
  35:	cc                   	int3
  36:	cc                   	int3
  37:	cc                   	int3
  38:	cc                   	int3
  39:	cc                   	int3
  3a:	55                   	push   %rbp
  3b:	41 56                	push   %r14
  3d:	53                   	push   %rbx
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89