1 files changed, 9 insertions, 4 deletions
diff --git a/src/malloc/malloc.c b/src/malloc/malloc.c
index 239ab9c6..d72883e1 100644
--- a/src/malloc/malloc.c
+++ b/src/malloc/malloc.c
@@ -20,6 +20,8 @@ static struct {
 	volatile int free_lock[2];
 } mal;
 
+int __malloc_replaced;
+
 /* Synchronization tools */
 
 static inline void lock(volatile int *lk)
@@ -356,10 +358,13 @@ void *calloc(size_t m, size_t n)
 	}
 	n *= m;
 	void *p = malloc(n);
-	if (!p || IS_MMAPPED(MEM_TO_CHUNK(p)))
-		return p;
-	if (n >= PAGE_SIZE)
-		n = mal0_clear(p, PAGE_SIZE, n);
+	if (!p) return p;
+	if (!__malloc_replaced) {
+		if (IS_MMAPPED(MEM_TO_CHUNK(p)))
+			return p;
+		if (n >= PAGE_SIZE)
+			n = mal0_clear(p, PAGE_SIZE, n);
+	}
 	return memset(p, 0, n);
 }