OOM fixes
[fio.git] / fio.c
diff --git a/fio.c b/fio.c
index cc65e3d0cf197ec46b978283b4c754d4cdf5f396..7110e87dfac36cfeec1cac0b87a8eb3018eac68b 100644 (file)
--- a/fio.c
+++ b/fio.c
@@ -301,9 +301,17 @@ static void do_verify(struct thread_data *td)
                case FIO_Q_COMPLETED:
                        if (io_u->error)
                                ret = -io_u->error;
-                       else if (io_u->xfer_buflen != io_u->resid && io_u->resid) {
+                       else if (io_u->resid) {
                                int bytes = io_u->xfer_buflen - io_u->resid;
 
+                               /*
+                                * zero read, fail
+                                */
+                               if (!bytes) {
+                                       td_verror(td, ENODATA, "full resid");
+                                       put_io_u(td, io_u);
+                                       break;
+                               }
                                io_u->xfer_buflen = io_u->resid;
                                io_u->xfer_buf += bytes;
                                requeue_io_u(td, &io_u);
@@ -399,9 +407,18 @@ static void do_io(struct thread_data *td)
                case FIO_Q_COMPLETED:
                        if (io_u->error)
                                ret = -io_u->error;
-                       else if (io_u->xfer_buflen != io_u->resid && io_u->resid) {
+                       else if (io_u->resid) {
                                int bytes = io_u->xfer_buflen - io_u->resid;
 
+                               /*
+                                * zero read, fail
+                                */
+                               if (!bytes) {
+                                       td_verror(td, ENODATA, "full resid");
+                                       put_io_u(td, io_u);
+                                       break;
+                               }
+
                                io_u->xfer_buflen = io_u->resid;
                                io_u->xfer_buf += bytes;
                                requeue_io_u(td, &io_u);
@@ -675,33 +692,33 @@ static void *thread_main(void *data)
        INIT_LIST_HEAD(&td->io_log_list);
 
        if (init_io_u(td))
-               goto err;
+               goto err_sem;
 
        if (fio_setaffinity(td) == -1) {
                td_verror(td, errno, "cpu_set_affinity");
-               goto err;
+               goto err_sem;
        }
 
        if (init_iolog(td))
-               goto err;
+               goto err_sem;
 
        if (td->ioprio) {
                if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) {
                        td_verror(td, errno, "ioprio_set");
-                       goto err;
+                       goto err_sem;
                }
        }
 
        if (nice(td->nice) == -1) {
                td_verror(td, errno, "nice");
-               goto err;
+               goto err_sem;
        }
 
        if (init_random_state(td))
-               goto err;
+               goto err_sem;
 
        if (td->ioscheduler && switch_ioscheduler(td))
-               goto err;
+               goto err_sem;
 
        td_set_runstate(td, TD_INITIALIZED);
        fio_sem_up(startup_sem);
@@ -804,6 +821,9 @@ err:
        cleanup_io_u(td);
        td_set_runstate(td, TD_EXITED);
        return (void *) (unsigned long) td->error;
+err_sem:
+       fio_sem_up(startup_sem);
+       goto err;
 }
 
 /*
@@ -1012,6 +1032,7 @@ static void run_threads(void)
                                if (pthread_create(&td->thread, NULL, thread_main, td)) {
                                        perror("thread_create");
                                        nr_started--;
+                                       break;
                                }
                        } else {
                                if (!fork()) {