Date: Mon, 03 Jan 2005 02:31:52 -0800 From: Paul Querna <chip@force-elite.com> To: Clement Laforet <sheepkiller@cultdeadsheep.org> Cc: freebsd-apache@FreeBSD.org Subject: Re: apache core dump Message-ID: <41D91F18.7000202@force-elite.com> In-Reply-To: <20050103111551.6819aeb0.sheepkiller@cultdeadsheep.org> References: <BAY103-DAV1638BA2FC49E153E727DA9A19E0@phx.gbl> <20050103111551.6819aeb0.sheepkiller@cultdeadsheep.org>
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Clement Laforet wrote: > On Sat, 1 Jan 2005 10:31:55 -0800 > "whitevamp" <whitevamp47@hotmail.com> wrote: > > >>ok the otherday i had an issue with apache not binding to port 80 >> >>and i thought i got that taken care of, well maby i have but any way >>i knoticed that apache wasnt running any more so i when to start it >>and it whouldnt start so i looked in the error log didnt find >>anything wrong in there so i looked in messages and i found this >>Dec 31 19:00:04 vampextream kernel: pid 88555 (httpd), uid 80: exited on signal 11 >> >>so now its core dumping .. >>so my quistions are >>1. how do i go about debugging this? > > First of all you need to find what is causing the segfault: > - a modules (apache's one or third party one) > - apache itself > > You have to enable or disable every module (one by one) to find the > culpit. After that, rebuild apache and the culpit module (if any) with > debugging stuff. Thats pretty harsh, I generally just rebuild everything eith debugging info enabled. Much faster than trying to manually add/remove all those modules :) After that, you need to allow apache to write a dump. > sysctl kern.sugid_coredump=1 > and use CoreDumpDirectory to define a place to store dump files. > run gdb on the core to find where it fails. > > >>2. and what would be causeing this? > > Generally, mod_php ;) > Find the culpit first, and then you'll see. > > clem > > Note: if you use nss_ldap + php4, it can cause segfaults.
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