| TITLE: INFO: rcu detected stall in snd_pcm_oss_release |
| TYPE: HANG |
| |
| [ 362.024021] INFO: rcu_sched self-detected stall on CPU |
| [ 362.029432] 1-....: (124999 ticks this GP) idle=f9a/1/4611686018427387906 softirq=73140/73140 fqs=31238 |
| [ 362.039293] (t=125000 jiffies g=36742 c=36741 q=633) |
| [ 362.044549] NMI backtrace for cpu 1 |
| [ 362.048153] CPU: 1 PID: 17059 Comm: syz-executor4 Not tainted 4.16.0+ #4 |
| [ 362.054963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 362.064292] Call Trace: |
| [ 362.066846] <IRQ> |
| [ 362.068978] dump_stack+0x1b9/0x294 |
| [ 362.081704] nmi_cpu_backtrace.cold.4+0x19/0xce |
| [ 362.091512] nmi_trigger_cpumask_backtrace+0x151/0x192 |
| [ 362.096764] arch_trigger_cpumask_backtrace+0x14/0x20 |
| [ 362.101928] rcu_dump_cpu_stacks+0x175/0x1c2 |
| [ 362.111309] check_cpu_stall.isra.61.cold.80+0x36c/0x59a |
| [ 362.172363] rcu_check_callbacks+0x21b/0xad0 |
| [ 362.230142] update_process_times+0x2d/0x70 |
| [ 362.234439] tick_sched_handle+0xa0/0x180 |
| [ 362.238565] tick_sched_timer+0x42/0x130 |
| [ 362.242605] __hrtimer_run_queues+0x3e3/0x10a0 |
| [ 362.290776] hrtimer_interrupt+0x286/0x650 |
| [ 362.294994] smp_apic_timer_interrupt+0x15d/0x710 |
| [ 362.326302] apic_timer_interrupt+0xf/0x20 |
| [ 362.330507] </IRQ> |
| [ 362.332720] RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x1a/0x20 |
| [ 362.338837] RSP: 0018:ffff8801c7b5ede0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 |
| [ 362.346520] RAX: 0000000000000000 RBX: ffff8801ce12c8c0 RCX: ffffffff85a1dc9d |
| [ 362.353762] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 |
| [ 362.361011] RBP: ffff8801c7b5ede0 R08: ffff8801c3d94300 R09: 0000000000000006 |
| [ 362.368261] R10: ffff8801c3d94300 R11: 0000000000000000 R12: 0000000000000000 |
| [ 362.375505] R13: 0000000000000000 R14: ffff8801ceaaed80 R15: ffff8801ce12cc18 |
| [ 362.387226] snd_pcm_oss_prepare+0x7d/0x1b0 |
| [ 362.391529] snd_pcm_oss_write3+0x1a7/0x220 |
| [ 362.395826] snd_pcm_oss_write2+0x34c/0x460 |
| [ 362.408634] snd_pcm_oss_sync1+0x332/0x5a0 |
| [ 362.448533] snd_pcm_oss_sync.isra.29+0x790/0x980 |
| [ 362.466072] snd_pcm_oss_release+0x214/0x290 |
| [ 362.475452] __fput+0x34d/0x890 |
| [ 362.490736] ____fput+0x15/0x20 |
| [ 362.493989] task_work_run+0x1e4/0x290 |
| [ 362.512311] do_exit+0x1aee/0x2730 |
| [ 362.635785] do_group_exit+0x16f/0x430 |
| [ 362.657106] get_signal+0x886/0x1960 |
| [ 362.717833] do_signal+0x98/0x2040 |
| [ 362.764335] exit_to_usermode_loop+0x28a/0x310 |
| [ 362.781265] do_syscall_64+0x792/0x9d0 |
| [ 362.813438] entry_SYSCALL_64_after_hwframe+0x42/0xb7 |
| [ 362.818600] RIP: 0033:0x455259 |
| [ 362.821763] RSP: 002b:00007fb730463ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca |
| [ 362.829446] RAX: fffffffffffffe00 RBX: 000000000072bf80 RCX: 0000000000455259 |
| [ 362.836692] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000072bf80 |
| [ 362.843936] RBP: 000000000072bf80 R08: 0000000000000000 R09: 000000000072bf58 |
| [ 362.851177] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 |
| [ 362.858424] R13: 00007ffc071d643f R14: 00007fb7304649c0 R15: 0000000000000001 |
