--- a/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp	Wed Mar 28 16:39:32 2018 +0200
+++ b/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp	Wed Mar 28 16:39:32 2018 +0200
@@ -109,7 +109,6 @@
 }
 
 void G1FullGCPrepareTask::G1CalculatePointersClosure::reset_region_metadata(HeapRegion* hr) {
-  hr->reset_gc_time_stamp();
   hr->rem_set()->clear();
   hr->clear_cardtable();