diff -r 70649f10b88c -r 047a642c9729 src/share/vm/gc_interface/gcCause.hpp
--- a/src/share/vm/gc_interface/gcCause.hpp	Tue Dec 15 09:46:51 2015 +0100
+++ b/src/share/vm/gc_interface/gcCause.hpp	Wed Dec 02 13:58:34 2015 +0530
@@ -47,6 +47,7 @@
     _heap_inspection,
     _heap_dump,
     _wb_young_gc,
+    _wb_conc_mark,
     _update_allocation_context_stats_inc,
     _update_allocation_context_stats_full,