rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 1, t=10502 jiffies, g=12749, q=94)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294968400-4294957898), jiffies_till_next_fqs=1, root ->qsmask 0x0
syz-executor.0  R  running task    27344  9096   7053 0x00000800
Call Trace:
 <IRQ>
 sched_show_task+0x408/0x560 kernel/sched/core.c:5956
 print_other_cpu_stall kernel/rcu/tree_stall.h:430 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:558 [inline]
 rcu_pending kernel/rcu/tree.c:3225 [inline]
 rcu_sched_clock_irq+0x162e/0x1ac0 kernel/rcu/tree.c:2296
 update_process_times+0x12c/0x180 kernel/time/timer.c:1727
 tick_sched_handle kernel/time/tick-sched.c:176 [inline]
 tick_sched_timer+0x254/0x410 kernel/time/tick-sched.c:1320
 __run_hrtimer kernel/time/hrtimer.c:1520 [inline]
 __hrtimer_run_queues+0x42d/0x930 kernel/time/hrtimer.c:1584
 hrtimer_interrupt+0x373/0xd60 kernel/time/hrtimer.c:1646
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1113 [inline]
 smp_apic_timer_interrupt+0x109/0x280 arch/x86/kernel/apic/apic.c:1138
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
 </IRQ>
RIP: 0010:vcpu_enter_guest+0x623e/0x8770 arch/x86/kvm/x86.c:8469
Code: 38 00 4c 8b 74 24 20 74 0c 48 c7 c7 c0 b9 2b 89 e8 d7 de a3 00 48 83 3d 1f 28 1e 08 00 0f 84 dd 24 00 00 fb 66 0f 1f 44 00 00 <49> 8d 9d 80 01 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48
RSP: 0018:ffffc90005537a10 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff1257738 RBX: 00000038511de879 RCX: ffffffff815911d2
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff8880479e2e64
RBP: ffffc90005537d48 R08: dffffc0000000000 R09: fffffbfff162a2ca
R10: fffffbfff162a2ca R11: 0000000000000000 R12: ffff8880494e1bf8
R13: ffff8880494e0140 R14: ffff8880479e2624 R15: dffffc0000000000
 vcpu_run+0x342/0xcb0 arch/x86/kvm/x86.c:8564
 kvm_arch_vcpu_ioctl_run+0x419/0x880 arch/x86/kvm/x86.c:8786
 kvm_vcpu_ioctl+0x67c/0xa80 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3146
 vfs_ioctl fs/ioctl.c:47 [inline]
 ksys_ioctl fs/ioctl.c:771 [inline]
 __do_sys_ioctl fs/ioctl.c:780 [inline]
 __se_sys_ioctl+0xf9/0x160 fs/ioctl.c:778
 do_syscall_64+0xf3/0x1b0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45ca29
Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fd85b633c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000004e7fc0 RCX: 000000000045ca29
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000003c6 R14: 00000000004c6703 R15: 00007fd85b6346d4
rcu: rcu_preempt kthread starved for 10502 jiffies! g12749 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R  running task    28960    10      2 0x80004000
Call Trace: