--- old/src/share/vm/gc/cms/vmCMSOperations.cpp	2015-09-09 16:12:50.383861878 +0200
+++ new/src/share/vm/gc/cms/vmCMSOperations.cpp	2015-09-09 16:12:50.271861882 +0200
@@ -134,7 +134,6 @@
     return;
   }
   HS_PRIVATE_CMS_INITMARK_BEGIN();
-  GCIdMark gc_id_mark(_gc_id);
 
   _collector->_gc_timer_cm->register_gc_pause_start("Initial Mark");
 
@@ -162,7 +161,6 @@
     return;
   }
   HS_PRIVATE_CMS_REMARK_BEGIN();
-  GCIdMark gc_id_mark(_gc_id);
 
   _collector->_gc_timer_cm->register_gc_pause_start("Final Mark");