--- libmalloc/libmalloc-657.80.3/tests/malloc_heap_check_test.c
+++ libmalloc/libmalloc-283.60.1/tests/malloc_heap_check_test.c
@@ -7,18 +7,18 @@
 #include <stdlib.h>
 #include <darwintest.h>
 
-T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true), T_META_TAG_XZONE, T_META_TAG_VM_NOT_PREFERRED);
+T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
 
 static void
-run_heap_test(int iterations)
+run_heap_test()
 {
 	const int MAX_POINTERS = 1024;
 	void **pointers = (void **)calloc(MAX_POINTERS, sizeof(void *));
-	for (int iteration = 0; iteration < iterations; iteration++) {
-		int index = rand() % MAX_POINTERS;
-		size_t size = 1 << (rand() % 20);
+	for (int iteration = 0; iteration < 100000; iteration++) {
+		int index = random() % MAX_POINTERS;
+		size_t size = 1 << (random() % 20);
 		if (pointers[index]) {
-			if (rand() % 4 == 0) {
+			if (random() % 4 == 0) {
 				pointers[index] = realloc(pointers[index], size);
 				continue;
 			}
@@ -41,7 +41,7 @@
 	   T_META_ENVVAR("MallocCheckHeapEach=1"),
 	   T_META_ENVVAR("MallocNanoZone=0"))
 {
-	run_heap_test(100000);
+	run_heap_test();
 
 	// If we get here without crashing, we pass.
 	T_PASS("Heap check succeeded");
@@ -51,17 +51,9 @@
 	   T_META_ENVVAR("MallocCheckHeapEach=1"),
 	   T_META_ENVVAR("MallocNanoZone=1"))
 {
-	run_heap_test(100000);
+	run_heap_test();
 
 	// If we get here without crashing, we pass.
 	T_PASS("Heap check succeeded");
 }
 
-T_DECL(malloc_simple_stack_logging, "Test MallocSimpleStackLogging=1",
-		T_META_ENVVAR("MallocSimpleStackLogging=1"))
-{
-	run_heap_test(1000);
-
-	T_PASS("Success");
-}
-