--- old/src/os/aix/vm/os_aix.cpp	2014-12-10 22:33:50.755284513 +0900
+++ new/src/os/aix/vm/os_aix.cpp	2014-12-10 22:33:50.433284516 +0900
@@ -5069,6 +5069,9 @@
     return 0;
   }
 
+  jio_snprintf(buffer, bufferSize, "%s/core or core.%d",
+                                               p, current_process_id());
+
   return strlen(buffer);
 }