Request for review

Jon Masamitsu jon.masamitsu at
Wed Jun 9 05:53:23 UTC 2010

Fixed 6952853: SIGSEGV with UseAdaptiveGCBoundary on 64b linux running 

Shrinking of a generation and the corresponding card table was causing
part of the card table to be uncommitted.

This fix is a workaround to not shrink the card table when
UseAdaptiveGCBoundary is on.

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