--- old/src/share/vm/gc/serial/defNewGeneration.hpp	2016-09-12 15:41:10.490114663 +0200
+++ new/src/share/vm/gc/serial/defNewGeneration.hpp	2016-09-12 15:41:10.378114658 +0200
@@ -225,7 +225,7 @@
   size_t max_survivor_size() const          { return _max_survivor_size; }
 
   bool supports_inline_contig_alloc() const { return true; }
-  HeapWord** top_addr() const;
+  HeapWord* volatile* top_addr() const;
   HeapWord** end_addr() const;
 
   // Thread-local allocation buffers