RFR (S): 8068036: assert(is_available(index)) failed in G1 cset - Urgent!

Bengt Rutisson bengt.rutisson at oracle.com
Mon Dec 22 15:27:56 UTC 2014

Hi Thomas,

Looks good.


On 12/22/14 4:09 PM, Thomas Schatzl wrote:
> Hi all,
>    can I have reviews for this small change that fixes a lot of nightly
> test failures that has been introduced by JDK-8060025?
> Some verification code iterates through all regions using the region map
> (array). This is disallowed since some time ago, causing assertion and
> failure when trying to access a heap region index that is not available
> at the moment.
> This change fixes this by properly using a heap region closure instead
> of the for-loop.
> The problem has gone unnoticed because my testing has been mostly
> focused on performance where the -Xms value has always been set to the
> -Xmx value.
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8068036
> Webrev:
> http://cr.openjdk.java.net/~tschatzl/8068036/webrev/
> Testing:
> parts of the failing nightly tests, jprt
> Thanks,
>    Thomas

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