--- libmalloc/libmalloc-646.40.3/tests/realloc.c
+++ libmalloc/libmalloc-792.1.1/tests/realloc.c
@@ -16,7 +16,7 @@
 	T_ASSERT_NULL(b, "realloc should fail");
 	T_ASSERT_EQ(error, ENOMEM, "failure should have been ENOMEM");
 
-	T_ASSERT_GT(a_sz, 0, "The original pointer should not have been freed");
+	T_ASSERT_GT(a_sz, 0ul, "The original pointer should not have been freed");
 
 	free(a);
 }
@@ -24,8 +24,9 @@
 T_DECL(reallocf_failure, "reallocf failure", T_META_TAG_XZONE,
 		T_META_TAG("no_debug"), T_META_TAG_VM_NOT_PREFERRED)
 {
-	void *a = malloc(16);
-	T_ASSERT_NOTNULL(a, "malloc(16)");
+	// rdar://134443969: Avoid the tiny zone because it may madvise
+	void *a = malloc(65536);
+	T_ASSERT_NOTNULL(a, "malloc(65536)");
 	void *b = reallocf(a, SIZE_MAX - (1 << 17));
 	errno_t error = errno;
 	size_t a_sz = malloc_size(a);
@@ -33,5 +34,5 @@
 	T_ASSERT_NULL(b, "reallocf should fail");
 	T_ASSERT_EQ(error, ENOMEM, "failure should have been ENOMEM");
 
-	T_ASSERT_EQ(a_sz, 0, "The original pointer should have been freed");
+	T_ASSERT_EQ(a_sz, 0ul, "The original pointer should have been freed");
 }