TITLE: INFO: rcu detected stall in kvm_vcpu_ioctl
ALT: stall in kvm_vcpu_ioctl
TYPE: HANG

[  631.121467] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[  631.127772] rcu: 	(detected by 0, t=10502 jiffies, g=6833, q=154)
[  631.134056] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4295000262-4294989759), jiffies_till_next_fqs=1, root ->qsmask 0x0
[  631.146731] syz-executor4   R  running task    22104  7395   5354 0x00000000
[  631.153965] Call Trace:
[  631.156563]  <IRQ>
[  631.158736]  sched_show_task.cold.83+0x2b6/0x30a
[  631.194724]  print_other_cpu_stall.cold.79+0xa83/0xba5
[  631.261421]  rcu_check_callbacks+0xafc/0x1990
[  631.401184]  update_process_times+0x2d/0x70
[  631.405548]  tick_sched_handle+0x9f/0x180
[  631.409740]  tick_sched_timer+0x45/0x130
[  631.413842]  __hrtimer_run_queues+0x41c/0x10d0
[  631.468709]  hrtimer_interrupt+0x313/0x780
[  631.472986]  smp_apic_timer_interrupt+0x1a1/0x760
[  631.539804]  apic_timer_interrupt+0xf/0x20
[  631.544056]  </IRQ>
[  631.546310] RIP: 0010:__srcu_read_lock+0xec/0x160
[  631.570098] RSP: 0018:ffff8801bf2bf458 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
[  631.577828] RAX: 0000000000000001 RBX: 1ffff10037e57e90 RCX: 0000000000000001
[  631.585112] RDX: 000060fe24eb2dc0 RSI: 0000000000000000 RDI: ffffc90001fd2c28
[  631.592397] RBP: ffff8801bf2bf4e0 R08: ffff8801c0b82080 R09: 0000000000000006
[  631.599676] R10: 0000000000000000 R11: ffff8801c0b82080 R12: 1ffff10037e57e8c
[  631.606953] R13: ffffc90001fd27e0 R14: ffff8801bf2bf4c0 R15: 0000000000000000
[  631.622702]  vcpu_enter_guest+0x1309/0x62e0
[  631.711508]  kvm_arch_vcpu_ioctl_run+0x375/0x16e0
[  631.721422]  kvm_vcpu_ioctl+0x72b/0x1150
[  631.816167]  do_vfs_ioctl+0x1de/0x1720
[  631.887384]  ksys_ioctl+0xa9/0xd0
[  631.890862]  __x64_sys_ioctl+0x73/0xb0
[  631.894796]  do_syscall_64+0x1b9/0x820
[  631.933977]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  631.939197] RIP: 0033:0x457099
[  631.961342] RSP: 002b:00007ffeca5f9b58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  631.969086] RAX: ffffffffffffffda RBX: 0000000002395914 RCX: 0000000000457099
[  631.976385] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006
[  631.983681] RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000
[  631.990979] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
[  631.998286] R13: 00000000004cf730 R14: 00000000004c59b9 R15: 0000000000000000
