diff --git a/src/common/memfill.c b/src/common/memfill.c
new file mode 100644
index 0000000..2b8f999
--- /dev/null
+++ b/src/common/memfill.c
@@ -0,0 +1,16 @@
+#include <string.h>
+#include <errno.h>
+#include <sys/resource.h>
+#include "test.h"
+
+int t_memfill()
+{
+	int r = 0;
+	if (t_vmfill(0,0,0) < 0) {
+		t_error("vmfill failed: %s\n", strerror(errno));
+		r = -1;
+	}
+	if (t_setrlim(RLIMIT_DATA, 0) < 0)
+		r = -1;
+	return r;
+}