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JDK-6906727 : UseCompressedOops: some card-marking fixes related to object arrays
  • Type: Bug
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: hs16,6u14p
  • Priority: P2
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic,solaris_10
  • CPU: generic,x86
  • Submitted: 2009-12-03
  • Updated: 2011-03-22
  • Resolved: 2010-01-14
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JDK 6 JDK 7 Other
6u18Fixed 7Fixed hs16Fixed
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Description
This is a CR created with the express purpose of targeting a small
subset of the more extensive fixes envisaged in 6904516 more promptly
than would be possible with all of the fixes in 6904516.

See comments section.

Comments
EVALUATION http://hg.openjdk.java.net/hsx/hsx16/master/rev/9adb2f184e47
2009-12-05

EVALUATION http://hg.openjdk.java.net/hsx/hsx16/baseline/rev/9adb2f184e47
2009-12-04

EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/6aa7255741f3
2009-12-04

SUGGESTED FIX http://analemma.sfbay/net/neeraja/export/ysr/hotspot-gc/webrev
2009-12-04

WORK AROUND -XX:-UseCompressedOops if in -d64, with a usually quite considerable resulting loss in performance.
2009-12-03

EVALUATION Stort-term risk mitigation in hs16 (see subCR).
2009-12-03