| TITLE: INFO: rcu detected stall in kvm_vcpu_ioctl |
| |
| [ 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 |
