--- old/src/share/vm/memory/genCollectedHeap.cpp	2013-06-04 17:03:26.979740725 +0200
+++ new/src/share/vm/memory/genCollectedHeap.cpp	2013-06-04 17:03:26.783740719 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -95,7 +95,7 @@
   guarantee(HeapWordSize == wordSize, "HeapWordSize must equal wordSize");
 
   // The heap must be at least as aligned as generations.
-  size_t alignment = Generation::GenGrain;
+  size_t alignment = max_heap_alignment();
 
   _gen_specs = gen_policy()->generations();