7011859: java/util/concurrent/Semaphore/RacingReleases.java failing

[David Holmes]

On 9/10/2013 9:55 PM, Alan Bateman wrote:
>
> This test has been failing (very intermittently) for some time. It was
> assumed to be a HotSpot issue on SPARC but more recently it has been
> duplicated on Linux x64 too. David Simms has notes in the bug [1] from
> this instrumentation and analysis, and Doug has pushed a fix to his CVS
> that fixes the issue (although they may still be an underlying issue
> that still needs to be hunted down).
>
> Doug's fix updates AQS and AQLS to re-read the head and avoid the race.
> We need to bring this into jdk8/tl, the webrev with the patch is here:
>
> http://cr.openjdk.java.net/~alanb/7011859/webrev/

Reviewed!

Thanks Alan (and Doug and David S.)

David H.
--------

> -Alan
>
> [1] https://bugs.openjdk.java.net/browse/JDK-7011859