Tracking bug fix (sun) 6822370 to open JDK 6 release.

[daniel.daugherty at oracle.com]

OpenJDK6-B18 uses HSX-14. OpenJDK6-B19 is switching to HSX-16.

Dan


On 3/10/2010 9:58 AM, Ryan Betts wrote:
> Hello All,
>
> I am trying to determine if (or when) the fix for a specific defect is present in the latest openJDK6 release. I read the project's jdk6/7/hotspot genealogy description and hope to be forgiven for my continued confusion between hsx and jdk6.
>
> Defect: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=2185608
>
> Fix is claimed present in Sun's JDK 6u18 release. 
> (http://java.sun.com/javase/6/webnotes/6u18.html defect 6822370).
>
> The relevant openJDK repo revisions appear to be:
> http://hg.openjdk.java.net/hsx/hsx16/baseline/rev/49bd3de668dc (Dec. 1st, 2009)
> http://hg.openjdk.java.net/hsx/hsx16/master/rev/49bd3de668dc (Dec. 5th, 2009)
>
> I downloaded the current openJDK source, and I do not see this change present:
> http://download.java.net/openjdk/jdk6/promoted/b18/openjdk-6-src-b18-16_feb_2010.tar.gz
>
> From the source download:
>
> void Parker::park(bool isAbsolute, jlong time) {                                              
>   // Optional fast-path check:                                                                
>   // Return immediately if a permit is available.                                             
>   if (_counter > 0) {
>       _counter = 0 ;
>       return ;
>   }
>
>
> From the annotation:
>
> http://hg.openjdk.java.net/hsx/hsx16/master/annotate/b9408ac1b596/src/os/linux/vm/os_linux.cpp
>
> void Parker::park(bool isAbsolute, jlong time) {
>   // Optional fast-path check:
>   // Return immediately if a permit is available.
>   if (_counter > 0) {
>       _counter = 0 ;
> [dholmes at 982] OrderAccess::fence();
>       return ;
>   }
>
>
> Thank you for any clarification.
> *--Ryan.
>
>   

-- 
Dan

Oracle <http://www.oracle.com>
Daniel Daugherty | Software Engineer
Phone: +17194811796 <tel:+17194811796> | Mobile: +17192375807 
<tel:+17192375807>
Oracle Java Serviceability
| Monument, Colorado 80132
Green Oracle <http://www.oracle.com/commitment> Oracle is committed to 
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