diff --git a/dm/tests/shardddl4_1/run.sh b/dm/tests/shardddl4_1/run.sh
index 9e750894144..8cac95b6ad2 100644
--- a/dm/tests/shardddl4_1/run.sh
+++ b/dm/tests/shardddl4_1/run.sh
@@ -1259,9 +1259,9 @@ function DM_STRICT_OPTIMISTIC_DOUBLE_SOURCE() {
 function run() {
 	init_cluster
 	init_database
-	#	DM_TABLE_CHECKPOINT_BACKWARD
-	#	DM_RESYNC_NOT_FLUSHED
-	#	DM_RESYNC_TXN_INTERRUPT
+	DM_TABLE_CHECKPOINT_BACKWARD
+	DM_RESYNC_NOT_FLUSHED
+	DM_RESYNC_TXN_INTERRUPT
 	DM_STRICT_OPTIMISTIC_SINGLE_SOURCE
 	DM_STRICT_OPTIMISTIC_DOUBLE_SOURCE
 	start=131