| TITLE: INFO: rcu detected stall in kvm_vcpu_ioctl |
| TYPE: HANG |
| |
| [ 1057.417927] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: |
| [ 1057.424666] rcu: (detected by 1, t=10502 jiffies, g=7113, q=509) |
| [ 1057.431125] rcu: All QSes seen, last rcu_preempt kthread activity 10498 (4295042895-4295032397), jiffies_till_next_fqs=1, root ->qsmask 0x0 |
| [ 1057.444299] syz-executor0 R running task 22808 7363 5346 0x00000000 |
| [ 1057.451771] Call Trace: |
| [ 1057.454712] <IRQ> |
| [ 1057.457168] sched_show_task.cold.83+0x2b6/0x30a |
| [ 1057.495301] print_other_cpu_stall.cold.79+0xa83/0xba5 |
| [ 1057.554036] rcu_check_callbacks+0xafc/0x1990 |
| [ 1057.687133] update_process_times+0x2d/0x70 |
| [ 1057.691573] tick_sched_handle+0x9f/0x180 |
| [ 1057.695766] tick_sched_timer+0x45/0x130 |
| [ 1057.699875] __hrtimer_run_queues+0x41c/0x10d0 |
| [ 1057.749858] hrtimer_interrupt+0x313/0x780 |
| [ 1057.754284] smp_apic_timer_interrupt+0x1a1/0x760 |
| [ 1057.821414] apic_timer_interrupt+0xf/0x20 |
| [ 1057.825660] </IRQ> |
| [ 1057.827917] RIP: 0010:lock_acquire+0x268/0x520 |
| [ 1057.851437] RSP: 0018:ffff8801c664eb20 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 |
| [ 1057.859184] RAX: dffffc0000000000 RBX: 1ffff10038cc9d69 RCX: 0000000000000000 |
| [ 1057.866490] RDX: 1ffffffff12a4535 RSI: 0000000000000000 RDI: 0000000000000282 |
| [ 1057.873788] RBP: ffff8801c664ec10 R08: ffff8801c10e6e70 R09: 0000000000000002 |
| [ 1057.881090] R10: ffff8801c10e6e50 R11: f333abdc872bc457 R12: ffff8801c10e6580 |
| [ 1057.888382] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 |
| [ 1057.916107] _raw_spin_lock+0x2d/0x40 |
| [ 1057.925256] kvm_mmu_unprotect_page+0xf9/0x450 |
| [ 1057.938957] x86_emulate_instruction+0x635/0x1fc0 |
| [ 1057.970189] kvm_mmu_page_fault+0x396/0x1b30 |
| [ 1058.076393] handle_ept_violation+0x29e/0x6a0 |
| [ 1058.092996] vmx_handle_exit+0x2f7/0x17e0 |
| [ 1058.133773] vcpu_enter_guest+0x14a9/0x62e0 |
| [ 1058.232876] kvm_arch_vcpu_ioctl_run+0x375/0x16e0 |
| [ 1058.242845] kvm_vcpu_ioctl+0x72b/0x1150 |
| [ 1058.347536] do_vfs_ioctl+0x1de/0x1720 |
| [ 1058.404376] ksys_ioctl+0xa9/0xd0 |
| [ 1058.407861] __x64_sys_ioctl+0x73/0xb0 |
| [ 1058.411768] do_syscall_64+0x1b9/0x820 |
| [ 1058.450911] entry_SYSCALL_64_after_hwframe+0x49/0xbe |
| [ 1058.456119] RIP: 0033:0x457099 |
| [ 1058.478267] RSP: 002b:00007fff8bfb2748 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 |
| [ 1058.486005] RAX: ffffffffffffffda RBX: 000000000212b914 RCX: 0000000000457099 |
| [ 1058.493299] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 |
| [ 1058.500585] RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 |
| [ 1058.507875] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff |
| [ 1058.515159] R13: 00000000004cf730 R14: 00000000004c59b9 R15: 0000000000000000 |
