ensure in debug mode that all allocated block are initialized with MI_DEBUG_UNINIT (issue
@@ -621,7 +621,11 @@ static void mi_page_init(mi_heap_t* heap, mi_page_t* page, size_t block_size, mi
page->keys[0] = _mi_heap_random_next(heap);
page->keys[1] = _mi_heap_random_next(heap);
#endif
+ #if MI_DEBUG > 0
+ page->is_zero = false; // ensure in debug mode we initialize with MI_DEBUG_UNINIT, see issue #501
+ #else
page->is_zero = page->is_zero_init;
+ #endif
mi_assert_internal(page->capacity == 0);
mi_assert_internal(page->free == NULL);
