--- libmalloc/libmalloc-646.0.13/tests/madvise.c
+++ libmalloc/libmalloc-283/tests/madvise.c
@@ -10,6 +10,9 @@
 #include "platform.h"
 #include "nano_zone_common.h"
 #include "nano_zone.h"
+
+extern int
+malloc_engaged_nano(void);
 
 #define T_EXPECT_BYTES(p, len, byte, msg, ...) do { \
 	char *_p = (char *)(p); \
@@ -26,7 +29,7 @@
 // madvise behaviour predictable under test.
 T_DECL(madvise_free_debug, "test vm.madvise_free_debug",
 	   T_META_SYSCTL_INT("vm.madvise_free_debug=1"),
-	   T_META_ASROOT(YES), T_META_TAG_VM_NOT_PREFERRED)
+	   T_META_ASROOT(YES))
 {
 	// Map 32k of memory.
 	size_t memsz = 32 * vm_page_size;
@@ -289,95 +292,3 @@
 	}
 }
 #endif // #if 0
-
-static void
-test_aggressive_madvise(const vm_size_t total_size, const size_t granularity)
-{
-	void *bank[total_size / granularity];
-
-	for (int i = 0; i < (sizeof(bank)/sizeof(*bank)); i++) {
-		bank[i] = malloc(granularity);
-		memset(bank[i], 'A', granularity);
-	}
-
-	// free all allocations to force as much as possible to be madvise'd
-	for (int i = 0; i < (sizeof(bank)/sizeof(*bank)); i++) {
-		free(bank[i]);
-	}
-
-	// find the first page aligned allocation that has
-	// continguous allocations after it that total an entire page
-	void *ptr = NULL;
-	void *next_ptr = NULL;
-	int num_needed = -1;
-	for (int i = 0; i < (sizeof(bank)/sizeof(*bank)); i++) {
-		if (ptr) {
-			if (bank[i] == next_ptr) {
-				num_needed--;
-
-				if (num_needed == 0) {
-					// found an entire page that should be free
-					break;
-				}
-			} else {
-				// start search again because there was a non-contiguous allocation
-				ptr = NULL;
-			}
-		}
-
-		if (!ptr && round_page((uintptr_t)bank[i]) == (uintptr_t)bank[i]) {
-			// start a new search at this page aligned allocation
-			ptr = next_ptr = bank[i];
-			num_needed = ((vm_kernel_page_size + granularity - 1) / granularity) - 1;
-
-			if (num_needed == 0) {
-				// granularity is greater than or equal to a page
-				break;
-			}
-		}
-
-		if (ptr) {
-			next_ptr = (void *)((uintptr_t)next_ptr + granularity);
-		}
-	}
-
-	T_ASSERT_NOTNULL(ptr, "expected pointer");
-	T_ASSERT_EQ(num_needed, 0, "need entire page");
-
-	// Check the entire page-aligned range is empty.
-	T_EXPECT_BYTES(ptr, vm_page_size, 0x0, "madvise'd memory is all zeros");
-}
-
-T_DECL(tiny_aggressive_madvise, "tiny allocator free with MallocAggressiveMadvise=1",
-	   T_META_TAG_VM_NOT_PREFERRED,
-	   T_META_SYSCTL_INT("vm.madvise_free_debug=1"),
-	   T_META_ENVVAR("MallocNanoZone=0"),
-	   T_META_ENVVAR("MallocAggressiveMadvise=1"),
-	   T_META_ENABLED(CONFIG_AGGRESSIVE_MADVISE),
-	   T_META_ASROOT(YES))
-{
-	test_aggressive_madvise(vm_page_size * 4, 16);
-}
-
-T_DECL(small_aggressive_madvise, "small allocator free with MallocAggressiveMadvise=1",
-	   T_META_SYSCTL_INT("vm.madvise_free_debug=1"),
-	   T_META_ENVVAR("MallocAggressiveMadvise=1"),
-	   T_META_TAG_VM_NOT_PREFERRED,
-	   T_META_ENABLED(CONFIG_AGGRESSIVE_MADVISE),
-	   T_META_ASROOT(YES))
-{
-	test_aggressive_madvise(vm_page_size * 8, 1536);
-}
-
-T_DECL(medium_aggressive_madvise, "medium allocator free with MallocAggressiveMadvise=1",
-	   T_META_SYSCTL_INT("vm.madvise_free_debug=1"),
-	   T_META_ENVVAR("MallocMediumZone=1"),
-	   T_META_ENVVAR("MallocMediumActivationThreshold=1"),
-	   T_META_ENVVAR("MallocAggressiveMadvise=1"),
-	   T_META_ENABLED(CONFIG_MEDIUM_ALLOCATOR),
-	   T_META_ENABLED(CONFIG_AGGRESSIVE_MADVISE),
-	   T_META_ASROOT(YES),
-	   T_META_TAG_VM_NOT_PREFERRED)
-{
-	test_aggressive_madvise(16 * 64 * 1024, 64 * 1024);
-}