diff -r 51293eef580c -r 929dfc251a28 hotspot/src/share/vm/gc/g1/g1CollectedHeap.cpp
--- a/hotspot/src/share/vm/gc/g1/g1CollectedHeap.cpp	Tue Jan 19 05:28:34 2016 -0800
+++ b/hotspot/src/share/vm/gc/g1/g1CollectedHeap.cpp	Tue Jan 19 09:39:28 2016 +0100
@@ -2551,6 +2551,7 @@
     // Previous workers starting region is valid
     // so let's iterate from there
     start_ind = (cs_size * (worker_i - 1)) / active_workers;
+    OrderAccess::loadload();
     result = _worker_cset_start_region[worker_i - 1];
   }