--- old/src/share/vm/gc_implementation/shared/vmGCOperations.hpp	2011-01-27 10:33:20.609375000 +0100
+++ new/src/share/vm/gc_implementation/shared/vmGCOperations.hpp	2011-01-27 10:33:19.890625000 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 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
@@ -138,6 +138,7 @@
     VM_GC_Operation(0 /* total collections,      dummy, ignored */,
                     0 /* total full collections, dummy, ignored */,
                     request_full_gc) {
+    _gc_cause = GCCause::_heap_inspection;
     _out = out;
     _full_gc = request_full_gc;
     _need_prologue = need_prologue;
@@ -163,6 +164,7 @@
     : VM_GC_Operation(gc_count_before),
       _size(size),
       _tlab(tlab) {
+    _gc_cause = GCCause::_allocation_failure;
     _res = NULL;
   }
   ~VM_GenCollectForAllocation()  {}