diff -r bc6b27fb3568 -r 0ac769a57c64 src/share/vm/runtime/arguments.cpp
--- a/src/share/vm/runtime/arguments.cpp	Tue Mar 01 10:27:15 2011 -0800
+++ b/src/share/vm/runtime/arguments.cpp	Tue Mar 01 14:56:48 2011 -0800
@@ -2790,10 +2790,6 @@
   if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) {
     FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1);
   }
-  // Temporary disable bulk zeroing reduction with G1. See CR 6627983.
-  if (UseG1GC) {
-    FLAG_SET_DEFAULT(ReduceBulkZeroing, false);
-  }
 #endif
 
   // If we are running in a headless jre, force java.awt.headless property