| TITLE: INFO: rcu detected stall in snd_pcm_oss_write |
| TYPE: HANG |
| |
| [ 196.114026] INFO: rcu_sched detected stalls on CPUs/tasks: |
| [ 196.119690] (detected by 0, t=125002 jiffies, g=15654, c=15653, q=133) |
| [ 196.126427] All QSes seen, last rcu_sched kthread activity 125002 (4294863411-4294738409), jiffies_till_next_fqs=3, root ->qsmask 0x0 |
| [ 196.138535] syz-executor1 R running task 24936 11943 3739 0x0000000c |
| [ 196.145712] Call Trace: |
| [ 196.148271] <IRQ> |
| [ 196.150403] sched_show_task+0x4a3/0x5e0 |
| [ 196.174578] print_other_cpu_stall+0x996/0x1090 |
| [ 196.236196] check_cpu_stall.isra.61+0x6e6/0x15b0 |
| [ 196.307884] rcu_check_callbacks+0x256/0xd00 |
| [ 196.364779] update_process_times+0x30/0x60 |
| [ 196.369080] tick_sched_handle+0x85/0x160 |
| [ 196.373206] tick_sched_timer+0x42/0x120 |
| [ 196.377249] __hrtimer_run_queues+0x358/0xe20 |
| [ 196.426526] hrtimer_interrupt+0x1c2/0x5e0 |
| [ 196.430767] smp_apic_timer_interrupt+0x14a/0x700 |
| [ 196.462113] apic_timer_interrupt+0xa9/0xb0 |
| [ 196.466405] </IRQ> |
| [ 196.468619] RIP: 0010:check_memory_region+0x38/0x190 |
| [ 196.473693] RSP: 0000:ffff8801bd2ff868 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff11 |
| [ 196.481384] RAX: ffff7fffffffffff RBX: ffffc9000160020b RCX: ffffffff841fceaf |
| [ 196.488632] RDX: 0000000000000001 RSI: 0000000000000002 RDI: ffffc9000160020a |
| [ 196.495875] RBP: ffff8801bd2ff878 R08: ffffc9000160020a R09: dffffc0000000000 |
| [ 196.503120] R10: 0000000000000001 R11: ffffed0037a5ff2e R12: ffffc9000160020a |
| [ 196.510365] R13: ffff8801bd2ff970 R14: dffffc0000000000 R15: ffffc9000160020a |
| [ 196.525806] memcpy+0x37/0x50 |
| [ 196.528895] mulaw_decode+0x52f/0x770 |
| [ 196.547525] mulaw_transfer+0x222/0x270 |
| [ 196.559384] snd_pcm_plug_write_transfer+0x22d/0x420 |
| [ 196.581116] snd_pcm_oss_write2+0x260/0x420 |
| [ 196.589913] snd_pcm_oss_write+0x5fe/0x830 |
| [ 196.603813] __vfs_write+0xef/0x970 |
| [ 196.650693] vfs_write+0x189/0x510 |
| [ 196.654218] SyS_write+0xef/0x220 |
| [ 196.670999] entry_SYSCALL_64_fastpath+0x23/0x9a |
| [ 196.675728] RIP: 0033:0x452ac9 |
| [ 196.678895] RSP: 002b:00007fa354a13c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 |
| [ 196.686582] RAX: ffffffffffffffda RBX: cccccccccccccccd RCX: 0000000000452ac9 |
| [ 196.693825] RDX: 00000000fffffeb2 RSI: 0000000020083fc6 RDI: 0000000000000014 |
| [ 196.701069] RBP: 00000000000005b5 R08: 0000000000000000 R09: 0000000000000000 |
| [ 196.708322] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f6998 |
| [ 196.715566] R13: 00000000ffffffff R14: 00007fa354a146d4 R15: 0000000000000000 |
