RFR(S): 7200261: G1: Liveness counting inconsistencies during marking verification
john.cuthbertson at oracle.com
Fri Sep 21 23:37:18 UTC 2012
Can I have a couple of volunteers look over the fix for this CR? The
webrev can be found at: http://cr.openjdk.java.net/~johnc/7200261/webrev.0/
The clipping in the code that sets the bits for a range of cards in the
"expected" card bitmap that we check the liveness accounting data
against was incorrect. This could lead to spurious verification
failures. In addition to fixing the clipping, I've upleveled this
routine and moved it into ConcurrentMark and now use it to generate the
real liveness data.
The failing test cases with marking verification; jprt.
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