diff -r e6aa4a8c1b46 -r 7ae4e26cb1e0 src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp
--- a/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp	Mon Mar 16 11:49:32 2015 -0700
+++ b/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp	Thu Oct 12 21:27:07 2017 +0800
@@ -1326,6 +1326,9 @@
   const int obj_size = obj->size();
   if (mark_bitmap()->mark_obj(obj, obj_size)) {
     _summary_data.add_obj(obj, obj_size);
+#ifdef MIPS64
+    if (Use3A2000) OrderAccess::fence();
+#endif
     return true;
   } else {
     return false;
@@ -1360,6 +1363,9 @@
     oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
     if (mark_bitmap()->is_unmarked(obj) && mark_obj(obj)) {
       cm->push(obj);
+#ifdef MIPS64
+      if (Use3A2000) OrderAccess::fence();
+#endif
     }
   }
 }