| TITLE: INFO: rcu detected stall in mousedev_write |
| TYPE: HANG |
| |
| [ 489.536147] rcu: INFO: rcu_sched self-detected stall on CPU |
| [ 489.542259] rcu: 1-....: (104999 ticks this GP) idle=19e/1/0x4000000000000002 softirq=112269/112269 fqs=19579 |
| [ 489.552836] rcu: (t=105000 jiffies g=225813 q=1973) |
| [ 489.558034] NMI backtrace for cpu 1 |
| [ 489.561659] CPU: 1 PID: 21558 Comm: syz-executor5 Not tainted 4.18.0+ #203 |
| [ 489.568681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 489.578024] Call Trace: |
| [ 489.580590] <IRQ> |
| [ 489.582742] dump_stack+0x1c9/0x2b4 |
| [ 489.605152] nmi_cpu_backtrace.cold.3+0x48/0x88 |
| [ 489.615031] nmi_trigger_cpumask_backtrace+0x151/0x192 |
| [ 489.620303] arch_trigger_cpumask_backtrace+0x14/0x20 |
| [ 489.625482] rcu_dump_cpu_stacks+0x175/0x1c2 |
| [ 489.634885] print_cpu_stall.cold.78+0x2fb/0x59c |
| [ 489.660436] rcu_check_callbacks+0xd4a/0x15a0 |
| [ 489.763624] update_process_times+0x2d/0x70 |
| [ 489.767934] tick_sched_handle+0x9f/0x180 |
| [ 489.772076] tick_sched_timer+0x45/0x130 |
| [ 489.776132] __hrtimer_run_queues+0x3eb/0xff0 |
| [ 489.825496] hrtimer_interrupt+0x2f3/0x750 |
| [ 489.829726] smp_apic_timer_interrupt+0x16d/0x6a0 |
| [ 489.882166] apic_timer_interrupt+0xf/0x20 |
| [ 489.886385] </IRQ> |
| [ 489.888622] RIP: 0010:_raw_spin_unlock_irq+0x56/0x70 |
| [ 489.912610] RSP: 0018:ffff88018eb8faf8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 |
| [ 489.920323] RAX: dffffc0000000000 RBX: ffff8801bff42be8 RCX: 0000000000000000 |
| [ 489.927581] RDX: 1ffffffff0fe379f RSI: 0000000000000001 RDI: ffffffff87f1bcf8 |
| [ 489.934838] RBP: ffff88018eb8fb00 R08: ffff88018d902000 R09: 0000000000000000 |
| [ 489.942093] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000c6c5ef |
| [ 489.949350] R13: dffffc0000000000 R14: 0000000000c6c5ef R15: ffff8801bff42be8 |
| [ 489.961123] mousedev_write+0x19d/0x840 |
| [ 489.970770] __vfs_write+0x117/0x9d0 |
| [ 490.009169] vfs_write+0x1fc/0x560 |
| [ 490.012705] ksys_write+0x101/0x260 |
| [ 490.025464] __x64_sys_write+0x73/0xb0 |
| [ 490.029373] do_syscall_64+0x1b9/0x820 |
| [ 490.068264] entry_SYSCALL_64_after_hwframe+0x49/0xbe |
| [ 490.073439] RIP: 0033:0x457089 |
| [ 490.095520] RSP: 002b:00007f0d92208c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 |
| [ 490.103219] RAX: ffffffffffffffda RBX: 00007f0d922096d4 RCX: 0000000000457089 |
| [ 490.110563] RDX: 00000000ffffffd1 RSI: 00000000200001c0 RDI: 0000000000000005 |
| [ 490.117820] RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 |
| [ 490.125073] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff |
| [ 490.132328] R13: 00000000004d7088 R14: 00000000004ca379 R15: 0000000000000000 |
