--- libmalloc/libmalloc-166.220.1/tests/malloc_size_test.c
+++ libmalloc/libmalloc-374.60.3/tests/malloc_size_test.c
@@ -9,13 +9,15 @@
 #include <stdlib.h>
 #include <malloc/malloc.h>
 
+T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
+
 static void
 test_malloc_size_valid(size_t min, size_t max, size_t incr)
 {
 	for (size_t sz = min; sz <= max; sz += incr) {
 		void *ptr = malloc(sz);
 		T_ASSERT_NOTNULL(ptr, "Allocate size %llu\n", (uint64_t)sz);
-		T_ASSERT_EQ(malloc_size(ptr), malloc_good_size(sz), "Check size value");
+		T_ASSERT_GE(malloc_size(ptr), malloc_good_size(sz), "Check size value");
 		free(ptr);
 	}
 }
@@ -41,12 +43,6 @@
 	test_malloc_size_valid(8192, 65536, 1024);
 }
 
-T_DECL(malloc_size_valid_nanov1, "Test malloc_size() on valid pointers for Nanov1",
-	   T_META_ENVVAR("MallocNanoZone=V1"))
-{
-	test_malloc_size_valid(2, 256, 16);
-}
-
 T_DECL(malloc_size_valid_nanov2, "Test malloc_size() on valid pointers for Nanov2",
 	   T_META_ENVVAR("MallocNanoZone=V2"))
 {
@@ -62,12 +58,6 @@
 	test_malloc_size_invalid(8192, 32768, 1024);
 }
 
-T_DECL(malloc_size_invalid_nanov1, "Test malloc_size() on valid pointers for Nanov1",
-	   T_META_ENVVAR("MallocNanoZone=V1"))
-{
-	test_malloc_size_invalid(2, 256, 16);
-}
-
 T_DECL(malloc_size_invalid_nanov2, "Test malloc_size() on valid pointers for Nanov2",
 	   T_META_ENVVAR("MallocNanoZone=V2"))
 {