| TITLE: INFO: rcu detected stall in kvm_vcpu_ioctl |
| TYPE: HANG |
| |
| [ 557.780627] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: |
| [ 557.786921] rcu: (detected by 0, t=10502 jiffies, g=52381, q=77) |
| [ 557.793179] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294992931-4294982428), jiffies_till_next_fqs=1, root ->qsmask 0x0 |
| [ 557.805832] syz-executor1 R running task 21584 17898 5513 0x00000000 |
| [ 557.813042] Call Trace: |
| [ 557.815629] <IRQ> |
| [ 557.817796] sched_show_task.cold.83+0x2b6/0x30a |
| [ 557.853686] print_other_cpu_stall.cold.79+0xa83/0xba5 |
| [ 557.919480] rcu_check_callbacks+0xafc/0x1990 |
| [ 558.059280] update_process_times+0x2d/0x70 |
| [ 558.063624] tick_sched_handle+0x9f/0x180 |
| [ 558.067785] tick_sched_timer+0x45/0x130 |
| [ 558.071860] __hrtimer_run_queues+0x41c/0x10d0 |
| [ 558.126464] hrtimer_interrupt+0x313/0x780 |
| [ 558.130798] smp_apic_timer_interrupt+0x1a1/0x760 |
| [ 558.191678] apic_timer_interrupt+0xf/0x20 |
| [ 558.195920] </IRQ> |
| [ 558.198167] RIP: 0010:do_error_trap+0x270/0x4d0 |
| [ 558.221781] RSP: 0018:ffff88018c7f68e8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 |
| [ 558.229505] RAX: dffffc0000000000 RBX: ffff88018c7f6a38 RCX: 1ffff10031358d4c |
| [ 558.236780] RDX: 1ffffffff12a4537 RSI: ffff880189ac6a68 RDI: ffffffff895229b8 |
| [ 558.244058] RBP: ffff88018c7f6a18 R08: ffff880189ac6a60 R09: 0000000000000006 |
| [ 558.251343] R10: 0000000000000000 R11: ffff880189ac61c0 R12: 0000000000000000 |
| [ 558.258622] R13: ffff88018c7f69f0 R14: 0000000000000008 R15: 1ffff100318fed22 |
| [ 558.311744] do_divide_error+0x18/0x20 |
| [ 558.315648] divide_error+0x14/0x20 |
| [ 558.319295] RIP: 0010:em_idiv_ex+0x0/0x8 |
| [ 558.342278] RSP: 0018:ffff88018c7f6ae0 EFLAGS: 00010202 |
| [ 558.347666] RAX: 0000000000000000 RBX: ffff88018ae6c960 RCX: 0000000000000000 |
| [ 558.354939] RDX: 0000000000000000 RSI: ffffffff811474e8 RDI: 0000000000000200 |
| [ 558.362215] RBP: ffff88018c7f6b18 R08: ffff880189ac61c0 R09: 1ffffffff12b43cd |
| [ 558.369489] R10: ffffed003b5c4732 R11: ffff8801dae23993 R12: 0000000000000000 |
| [ 558.376760] R13: ffffffff811474e8 R14: 0000000000000001 R15: ffffffff811474e8 |
| [ 558.401977] x86_emulate_insn+0x1efd/0x5020 |
| [ 558.437698] x86_emulate_instruction+0x665/0x1f90 |
| [ 558.460608] kvm_mmu_page_fault+0x342/0x1ad0 |
| [ 558.570767] handle_ept_violation+0x29e/0x6a0 |
| [ 558.587169] vmx_handle_exit+0x2f7/0x17f0 |
| [ 558.603946] vcpu_enter_guest+0x14a9/0x62e0 |
| [ 558.687489] kvm_arch_vcpu_ioctl_run+0x375/0x16e0 |
| [ 558.697387] kvm_vcpu_ioctl+0x72b/0x1150 |
| [ 558.762259] do_vfs_ioctl+0x1de/0x1720 |
| [ 558.790202] ksys_ioctl+0xa9/0xd0 |
| [ 558.793668] __x64_sys_ioctl+0x73/0xb0 |
| [ 558.797566] do_syscall_64+0x1b9/0x820 |
| [ 558.842137] entry_SYSCALL_64_after_hwframe+0x49/0xbe |
| [ 558.847341] RIP: 0033:0x457099 |
| [ 558.869448] RSP: 002b:00007fe96d7efc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 |
| [ 558.877169] RAX: ffffffffffffffda RBX: 00007fe96d7f06d4 RCX: 0000000000457099 |
| [ 558.884442] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000009 |
| [ 558.891714] RBP: 0000000000930140 R08: 0000000000000000 R09: 0000000000000000 |
| [ 558.898989] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff |
| [ 558.906264] R13: 00000000004cf730 R14: 00000000004c59b9 R15: 0000000000000001 |
