[7u80] Request for approval 8026303: CMS: JVM intermittently crashes with "FreeList of size 258 violates Conservation Principle" assert

[Stefan Johansson]

Hi,

Please approve the backport of the fix for JDK-8026303 to jdk7u-dev. 
This fix resolves the issue reported in JDK-8055730:
https://bugs.openjdk.java.net/browse/JDK-8055730

The changeset applies without any conflicts after the changeset has been 
modified to match JDK-7 source. Two main changes was done to the 
changeset, see this webrev for details:
http://cr.openjdk.java.net/~sjohanss/8026303/webrev.changeset/

Full webrev:
http://cr.openjdk.java.net/~sjohanss/8026303/webrev.00/

Original bug:
https://bugs.openjdk.java.net/browse/JDK-8026303
Original webrev:
http://cr.openjdk.java.net/~jmasa/8026303/webrev.00/
Original changeset:
http://hg.openjdk.java.net/jdk9/hs-gc/hotspot/rev/0ade41b2dbeb
Review:
http://mail.openjdk.java.net/pipermail/hotspot-gc-dev/2013-November/008976.html

Thanks,
Stefan