*** old/src/share/vm/utilities/globalDefinitions.hpp	Mon Mar 21 17:57:38 2016
--- new/src/share/vm/utilities/globalDefinitions.hpp	Mon Mar 21 17:57:38 2016

*** 1054,1063 ****
--- 1054,1064 ----
  const intptr_t badHeapOopVal    = (intptr_t) CONST64(0x2BAD4B0BBAADBABE); // value used to zap heap after GC
  const int      badHandleValue   = 0xBC;                     // value used to zap vm handle area
  const int      badResourceValue = 0xAB;                     // value used to zap resource area
  const int      freeBlockPad     = 0xBA;                     // value used to pad freed blocks.
  const int      uninitBlockPad   = 0xF1;                     // value used to zap newly malloc'd blocks.
+ const juint    uninitMetaWordVal= 0xf7f7f7f7;               // value used to zap newly allocated metachunk
  const intptr_t badJNIHandleVal  = (intptr_t) UCONST64(0xFEFEFEFEFEFEFEFE); // value used to zap jni handle area
  const juint    badHeapWordVal   = 0xBAADBABE;               // value used to zap heap after GC
  const juint    badMetaWordVal   = 0xBAADFADE;               // value used to zap metadata heap after GC
  const int      badCodeHeapNewVal= 0xCC;                     // value used to zap Code heap at allocation
  const int      badCodeHeapFreeVal = 0xDD;                   // value used to zap Code heap at deallocation