[php-maint] Bug#691318: debian #691318 - please supply backtrace

[Olivier Berger]

On Tue, Dec 25, 2012 at 07:55:24PM +0200, Lior Kaplan wrote:
> Hi Guys,
> 
> Please supply a backtrace as part of bug #691318. See
> http://wiki.debian.org/HowToGetABacktrace for more details.
> 
> We can't really guess what is the problem without some hints.
> 

Unfortunately, I can't :-(

I've tried producing core dumps, but cannot succeed.

I'm using mpm-prefork, and it seems that no cores will be produced for the child processes, although the master process (the one owned by root) dumps cores on signal 11 perfectly.

Maybe it's because the reproduction scenario involves an apache2 reload (yes, it seems very similar to #694473 : trying to post an edit to a wiki page after an /etc/init.d/apache2 reload has happened).

Are there any more instructions that what's in /usr/share/doc/apache2-mpm-prefork/README.backtrace on how to make sure apache's sub processes can dump cores ?

Thanks in advance.

Best regards,
-- 
Olivier BERGER 
http://www-public.telecom-sudparis.eu/~berger_o/ - OpenPGP-Id: 2048R/5819D7E8
Ingenieur Recherche - Dept INF
Institut Mines-Telecom, Telecom SudParis, Evry (France)