--- a/hotspot/src/share/vm/gc_implementation/g1/heapRegion.hpp	Mon Oct 17 09:57:41 2011 -0700
+++ b/hotspot/src/share/vm/gc_implementation/g1/heapRegion.hpp	Thu Oct 20 10:21:35 2011 +0200
@@ -431,6 +431,14 @@
     return _humongous_start_region;
   }
 
+  // Same as Space::is_in_reserved, but will use the original size of the region.
+  // The original size is different only for start humongous regions. They get
+  // their _end set up to be the end of the last continues region of the
+  // corresponding humongous object.
+  bool is_in_reserved_raw(const void* p) const {
+    return _bottom <= p && p < _orig_end;
+  }
+
   // Makes the current region be a "starts humongous" region, i.e.,
   // the first region in a series of one or more contiguous regions
   // that will contain a single "humongous" object. The two parameters