--- old/src/hotspot/share/gc/g1/g1ConcurrentMark.cpp	2018-02-03 14:27:16.963181480 +0900
+++ new/src/hotspot/share/gc/g1/g1ConcurrentMark.cpp	2018-02-03 14:27:16.671180554 +0900
@@ -1012,8 +1012,6 @@
     return;
   }
 
-  SvcGCMarker sgcm(SvcGCMarker::OTHER);
-
   if (VerifyDuringGC) {
     g1h->verifier()->verify(G1HeapVerifier::G1VerifyRemark, VerifyOption_G1UsePrevMarking, "During GC (before)");
   }