[php-maint] Bug#691318: Bug#694473: apache2: segmentation fault after reload, maybe PHP

Stefan Fritsch sf at sfritsch.de
Mon Jan 7 20:28:53 UTC 2013

On Monday 07 January 2013, you wrote:
> Hi.
> On Sun, Dec 23, 2012 at 04:09:48PM +0100, Stefan Fritsch wrote:
> > It always happens after there has been an graceful reload (i.e.
> > /etc/init.d/apache2 reload), so it will break after every
> > logrotate (therefore bumping severity).
> FWIW, I think #691318 is probably a duplicate of #694473, as I can
> reproduce systematically a crash in an apache subprocess when
> editing a mediawiki page right after a reload.
> However, I've been unable to produce core dumps (see my previous
> message to #691318) to confirm for sure.
> In any case, thanks for the hint.

Strange, I can't remember having the same problem.

You could try setting /proc/sys/fs/suid_dumpable to 1. But this is a 
security issue on a production server, read the proc man page to see 
if it is acceptable.

Also, look into /etc/apache2 for coredumps, too. There is a short time 
period during restart where the core dump directory will be set to the 
compiled-in server root directory (I think this is a bug).

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