--- old/src/share/vm/gc/g1/g1ConcurrentMark.cpp	2017-06-14 11:45:05.081053262 +0900
+++ new/src/share/vm/gc/g1/g1ConcurrentMark.cpp	2017-06-14 11:45:04.992051478 +0900
@@ -1103,8 +1103,6 @@
     return;
   }
 
-  SvcGCMarker sgcm(SvcGCMarker::OTHER);
-
   if (VerifyDuringGC) {
     HandleMark hm;  // handle scope
     g1h->prepare_for_verify();