The mysql bug report suggests the workaround of using pragma opt to 
reduce the optimisation level just for the problem code. This is 
potentially a better way of solving the problem than reducing the 
optimisation level for all files.

Have you got a compiler bug report associated with this issue?

Regards,

Darryl.


Basant Kukreja wrote:
> I certainly don't like the idea of compiling the entire mysql with -xO2.  I
> agree that we need -xO2 but not for entire mysql.
> 
> Have you collected the stack trace and compile only those files with -xO2 
> which
> appear in stack trace of segv. In my experience of compiler issues it has
> always worked for me in past. Even if it is compiler bug, compiler doesn't
> generate wrong code for entire mysql. It might be a few selective
> functions/files where compiler might be doing something unexpected. It is our
> job to figure out which files/functions code is generated incorrectly.
> 
> In summary we should compile only selected files with -xO2, not the entire
> -xO4.
> 
> Regards,
> Basant.
> 
> Note: Ideally we need to break down -xO4 flags and disable only those which
> cause crash.
> 
> On Mon, Nov 30, 2009 at 01:02:57PM +0530, sunanda menon wrote:
>> Hi,
>>
>> We have replaced the mysql-5.1.37 tarball with that of patching the  
>> mysql-5.1.37.tar.gz source from the download site.
>> Please review the changes made at  
>> http://cr.opensolaris.org/~sunandam/6857014/ and let me know your 
>> comments.
>>
>> Thanks Sunanda
>>
>>
>> -- 
>> Sunanda Menon
>> Database Technology Group
>> BLR03, x87098/91-80-66937098
>> http://blogs.sun.com/smenon
>>
>> _______________________________________________
>>
>>
>> webstack-discuss mailing list
>> webstack-discuss at opensolaris.org
>> http://mail.opensolaris.org/mailman/listinfo/webstack-discuss
> _______________________________________________
> 
> 
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-- 
Darryl Gove
Compiler Performance Engineering
Blog : http://blogs.sun.com/d/
Books: http://www.sun.com/books/catalog/solaris_app_programming.xml
        http://my.safaribooksonline.com/0595352510

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