diff --git a/module/zfs/zio.c b/module/zfs/zio.c
index 2e8bf8664d..a7d8b03c5a 100644
--- a/module/zfs/zio.c
+++ b/module/zfs/zio.c
@@ -1073,8 +1073,9 @@ zio_taskq_dispatch(zio_t *zio, enum zio_taskq_type q, boolean_t cutinline)
 		q++;
 
 	ASSERT3U(q, <, ZIO_TASKQ_TYPES);
-	(void) taskq_dispatch(spa->spa_zio_taskq[t][q],
-	    (task_func_t *)zio_execute, zio, flags);
+
+	while (taskq_dispatch(spa->spa_zio_taskq[t][q],
+	    (task_func_t *)zio_execute, zio, flags) == 0); /* do nothing */
 }
 
 static boolean_t