Mercurial > hg > truffle
diff agent/make/dumpflagswindbg.bat @ 1546:a00b51b2dda4
6948539: CMS+UseCompressedOops: placement of cms_free bit interferes with promoted object link
Summary: When using compressed oops, use compressed promoted pointers in b63:b31 of the mark word, so as not to interfere with the CMS "freeness bit" at b7. Updated mark-word layout documentation.
Reviewed-by: minqi, poonam, jmasa, coleenp
author | ysr |
---|---|
date | Mon, 17 May 2010 00:47:28 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |