--- a/hotspot/src/share/vm/logging/logTag.hpp	Fri Nov 27 12:37:38 2015 +0100
+++ b/hotspot/src/share/vm/logging/logTag.hpp	Mon Nov 30 19:38:51 2015 +0100
@@ -32,6 +32,7 @@
 // not be used in log calls, and should not be listed below.)
 #define LOG_TAG_LIST \
   LOG_TAG(defaultmethods) \
+  LOG_TAG(gc) \
   LOG_TAG(logging) \
   LOG_TAG(safepoint) \
   LOG_TAG(vmoperation)