struct thread_data *td = fd->td;
struct thread_options *o = &td->o;
struct sk_out *sk_out = fd->sk_out;
+ int deadlock_loop_cnt;
int clear_state;
int ret;
}
}
+ /*
+ * If we took too long to shut down, the main thread could
+ * already consider us reaped/exited. If that happens, break
+ * out and clean up.
+ */
+ if (td->runstate >= TD_EXITED)
+ break;
+
clear_state = 1;
/*
* the rusage_sem, which would never get upped because
* this thread is waiting for the stat mutex.
*/
- check_update_rusage(td);
+ deadlock_loop_cnt = 0;
+ do {
+ check_update_rusage(td);
+ if (!fio_mutex_down_trylock(stat_mutex))
+ break;
+ usleep(1000);
+ if (deadlock_loop_cnt++ > 5000) {
+ log_err("fio seems to be stuck grabbing stat_mutex, forcibly exiting\n");
+ td->error = EDEADLK;
+ goto err;
+ }
+ } while (1);
- fio_mutex_down(stat_mutex);
if (td_read(td) && td->io_bytes[DDIR_READ])
update_runtime(td, elapsed_us, DDIR_READ);
if (td_write(td) && td->io_bytes[DDIR_WRITE])