diff --git a/src/test/obj_pmalloc_mt/TEST8 b/src/test/obj_pmalloc_mt/TEST8
index 4a44da67251..9f512e332f4 100755
--- a/src/test/obj_pmalloc_mt/TEST8
+++ b/src/test/obj_pmalloc_mt/TEST8
@@ -9,19 +9,25 @@
 
 . ../unittest/unittest.sh
 
-require_valgrind 3.10
-require_fs_type pmem non-pmem
-require_test_type long
-configure_valgrind helgrind force-enable
+#require_valgrind 3.10
+require_fs_type pmem
+require_test_type short
+#configure_valgrind helgrind force-enable
 setup
 
-for n in {1..500}
-do
-	if test -f "rm $DIR/testfile"; then
-		rm $DIR/testfile
-	fi
-	PMEM_IS_PMEM_FORCE=1 expect_normal_exit\
-		./obj_pmalloc_mt$EXESUFFIX 32 1000 100 $DIR/testfile 1 $n
-done
+if test -f "rm $DIR/testfile"; then
+	rm $DIR/testfile
+fi
+PMEM_IS_PMEM_FORCE=1 expect_normal_exit\
+	./obj_pmalloc_mt$EXESUFFIX 32 1000 100 $DIR/testfile 1 0
+
+if test -f "rm $DIR/testfile"; then
+	rm $DIR/testfile
+fi
+
+PMEM_IS_PMEM_FORCE=1 expect_abnormal_exit\
+	./obj_pmalloc_mt$EXESUFFIX 32 1000 100 $DIR/testfile 1 1
+
+check
 
 pass
diff --git a/src/test/obj_pmalloc_mt/TEST9 b/src/test/obj_pmalloc_mt/TEST9
index 8f259cdac7e..1db855e3249 100755
--- a/src/test/obj_pmalloc_mt/TEST9
+++ b/src/test/obj_pmalloc_mt/TEST9
@@ -9,19 +9,24 @@
 
 . ../unittest/unittest.sh
 
-require_valgrind 3.10
-require_fs_type pmem non-pmem
-require_test_type long
-configure_valgrind helgrind force-enable
+#require_valgrind 3.10
+require_fs_type pmem
+require_test_type short
+#configure_valgrind helgrind force-enable
 setup
 
-for n in {1..50}
-do
-	if test -f "rm $DIR/testfile"; then
-		rm $DIR/testfile
-	fi
-	PMEM_IS_PMEM_FORCE=1 expect_normal_exit\
-		./obj_pmalloc_mt$EXESUFFIX 32 1000 100 $DIR/testfile 0 $n
-done
+if test -f "rm $DIR/testfile"; then
+	rm $DIR/testfile
+fi
+PMEM_IS_PMEM_FORCE=1 expect_normal_exit\
+	./obj_pmalloc_mt$EXESUFFIX 32 1000 100 $DIR/testfile 0 0
+
+if test -f "rm $DIR/testfile"; then
+	rm $DIR/testfile
+fi
+PMEM_IS_PMEM_FORCE=1 expect_abnormal_exit\
+	./obj_pmalloc_mt$EXESUFFIX 32 1000 100 $DIR/testfile 0 1
+
+check
 
 pass
diff --git a/src/test/obj_pmalloc_mt/err8.log.match b/src/test/obj_pmalloc_mt/err8.log.match
new file mode 100644
index 00000000000..2f6920d5025
--- /dev/null
+++ b/src/test/obj_pmalloc_mt/err8.log.match
@@ -0,0 +1 @@
+{obj_pmalloc_mt.c:68 realloc_worker} obj_pmalloc_mt/TEST8: Error: assertion failure: ret (0xffffffffffffffff) == 0 (0x0)
diff --git a/src/test/obj_pmalloc_mt/err9.log.match b/src/test/obj_pmalloc_mt/err9.log.match
new file mode 100644
index 00000000000..80b4f9f19a9
--- /dev/null
+++ b/src/test/obj_pmalloc_mt/err9.log.match
@@ -0,0 +1,2 @@
+{obj_pmalloc_mt.c:68 realloc_worker} obj_pmalloc_mt/TEST9: Error: assertion failure: ret (0xffffffffffffffff) == 0 (0x0)
+{obj_pmalloc_mt.c:68 realloc_worker} obj_pmalloc_mt/TEST9: Error: assertion failure: ret (0xffffffffffffffff) == 0 (0x0)
diff --git a/src/test/obj_pmalloc_mt/obj_pmalloc_mt.c b/src/test/obj_pmalloc_mt/obj_pmalloc_mt.c
index d23e4d1d5f4..9fd916ac4d1 100644
--- a/src/test/obj_pmalloc_mt/obj_pmalloc_mt.c
+++ b/src/test/obj_pmalloc_mt/obj_pmalloc_mt.c
@@ -465,6 +465,7 @@ main(int argc, char *argv[])
 	 */
 	if (Threads == MAX_THREADS) /* don't run for short tests */
 		run_worker(tx_worker, args);
+
 	run_worker(tx3_worker, args);
 
 	pmemobj_close(pop);