| TITLE: INFO: rcu detected stall in kvm_vcpu_ioctl |
| TYPE: HANG |
| |
| [ 351.337674] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: |
| [ 351.343969] rcu: (detected by 1, t=10502 jiffies, g=9981, q=283) |
| [ 351.350228] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294972288-4294961785), jiffies_till_next_fqs=1, root ->qsmask 0x0 |
| [ 351.363323] syz-executor0 R running task 21280 7720 5511 0x00000000 |
| [ 351.370540] Call Trace: |
| [ 351.373124] <IRQ> |
| [ 351.375304] sched_show_task.cold.83+0x2b6/0x30a |
| [ 351.411243] print_other_cpu_stall.cold.79+0xa83/0xba5 |
| [ 351.477062] rcu_check_callbacks+0xafc/0x1990 |
| [ 351.621883] update_process_times+0x2d/0x70 |
| [ 351.626218] tick_sched_handle+0x9f/0x180 |
| [ 351.630382] tick_sched_timer+0x45/0x130 |
| [ 351.634462] __hrtimer_run_queues+0x41c/0x10d0 |
| [ 351.693471] hrtimer_interrupt+0x313/0x780 |
| [ 351.697833] smp_apic_timer_interrupt+0x1a1/0x760 |
| [ 351.758839] apic_timer_interrupt+0xf/0x20 |
| [ 351.763076] </IRQ> |
| [ 351.765322] RIP: 0010:__virt_addr_valid+0xfe/0x230 |
| [ 351.789242] RSP: 0018:ffff88018a1d68b8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 |
| [ 351.796963] RAX: dffffc0000000000 RBX: 0000000193be3c00 RCX: ffffc900060ed000 |
| [ 351.804244] RDX: 1ffffffff1679c04 RSI: ffffffff81386a72 RDI: ffffffff8b3ce020 |
| [ 351.811523] RBP: ffff88018a1d68d0 R08: ffff8801c071a040 R09: ffffed003277c780 |
| [ 351.818800] R10: ffffed003277c781 R11: ffff880193be3c0e R12: 0000000000000032 |
| [ 351.826073] R13: 0000000000000000 R14: 0000000000000000 R15: 000000000000000f |
| [ 351.842081] __check_object_size+0x15b/0x782 |
| [ 351.859038] __kvm_read_guest_page+0xda/0x130 |
| [ 351.863547] kvm_vcpu_read_guest_page+0x40/0x50 |
| [ 351.868231] kvm_fetch_guest_virt+0x149/0x1c0 |
| [ 351.876984] __do_insn_fetch_bytes+0x45b/0x950 |
| [ 351.890976] x86_decode_insn+0x1544/0x54c0 |
| [ 351.904190] x86_emulate_instruction+0x89a/0x1f90 |
| [ 351.928622] kvm_mmu_page_fault+0x342/0x1ad0 |
| [ 352.039266] handle_ept_violation+0x29e/0x6a0 |
| [ 352.055832] vmx_handle_exit+0x2f7/0x17f0 |
| [ 352.081257] vcpu_enter_guest+0x14a9/0x62e0 |
| [ 352.160089] kvm_arch_vcpu_ioctl_run+0x375/0x16e0 |
| [ 352.169984] kvm_vcpu_ioctl+0x72b/0x1150 |
| [ 352.247217] do_vfs_ioctl+0x1de/0x1720 |
| [ 352.291956] ksys_ioctl+0xa9/0xd0 |
| [ 352.295448] __x64_sys_ioctl+0x73/0xb0 |
| [ 352.299350] do_syscall_64+0x1b9/0x820 |
| [ 352.343921] entry_SYSCALL_64_after_hwframe+0x49/0xbe |
| [ 352.349120] RIP: 0033:0x457099 |
| [ 352.371250] RSP: 002b:00007f10ce81ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 |
| [ 352.378968] RAX: ffffffffffffffda RBX: 00007f10ce81b6d4 RCX: 0000000000457099 |
| [ 352.386246] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 |
| [ 352.393525] RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 |
| [ 352.400800] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff |
| [ 352.408074] R13: 00000000004cf730 R14: 00000000004c59b9 R15: 0000000000000000 |
