src/share/vm/runtime/os.cpp

@@ -1677,11 +1677,11 @@
 
 /////////////// Unit tests ///////////////
 
 #ifndef PRODUCT
 
-#define assert_eq(a,b) assert(a == b, err_msg(SIZE_FORMAT " != " SIZE_FORMAT, a, b))
+#define assert_eq(a,b) assert(a == b, SIZE_FORMAT " != " SIZE_FORMAT, a, b)
 
 class TestOS : AllStatic {
   static size_t small_page_size() {
     return os::vm_page_size();
   }