--- old/src/share/vm/gc_implementation/g1/vm_operations_g1.hpp	2011-01-27 10:33:01.781250000 +0100
+++ new/src/share/vm/gc_implementation/g1/vm_operations_g1.hpp	2011-01-27 10:33:01.062500000 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2011, 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
@@ -45,7 +45,9 @@
   VM_G1OperationWithAllocRequest(unsigned int gc_count_before,
                                  size_t       word_size)
     : VM_GC_Operation(gc_count_before),
-      _word_size(word_size), _result(NULL), _pause_succeeded(false) { }
+      _word_size(word_size), _result(NULL), _pause_succeeded(false) {
+    _gc_cause = GCCause::_allocation_failure;
+  }
   HeapWord* result() { return _result; }
   bool pause_succeeded() { return _pause_succeeded; }
 };