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Im having trouble debugging a segmentation fault, the server
is only running phpAdsNew. The system: Dual opteron box running gentoo 2.6 kernel Apache 2.0.58 PHP 5.1.4 When we hit our peak hours is when the seg faults start occurring: [Tue Jul 25 13:09:32 2006] [notice] child pid 20868 exit
signal Segmentation fault (11) [Tue Jul 25 13:09:32 2006] [notice] child pid 20877 exit
signal Segmentation fault (11) [Tue Jul 25 13:09:32 2006] [notice] child pid 20895 exit
signal Segmentation fault (11) [Tue Jul 25 13:09:34 2006] [notice] child pid 20340 exit
signal Segmentation fault (11) [Tue Jul 25 13:09:34 2006] [notice] child pid 20698 exit
signal Segmentation fault (11) [Tue Jul 25 13:09:34 2006] [notice] child pid 20738 exit
signal Segmentation fault (11) [Tue Jul 25 13:09:34 2006] [notice] child pid 20826 exit
signal Segmentation fault (11) [Tue Jul 25 13:09:34 2006] [notice] child pid 20858 exit
signal Segmentation fault (11) [Tue Jul 25 13:09:34 2006] [notice] child pid 20866 exit
signal Segmentation fault (11) [Tue Jul 25 13:09:34 2006] [notice] child pid 20884 exit
signal Segmentation fault (11) [Tue Jul 25 13:09:34 2006] [notice] child pid 20886 exit
signal Segmentation fault (11) [Tue Jul 25 13:09:34 2006] [notice] child pid 20893 exit
signal Segmentation fault (11) [Tue Jul 25 13:09:34 2006] [notice] child pid 20903 exit
signal Segmentation fault (11) This will happen every 5-10 minutes in blocks like that. At first I thought it was a ram issue, but when I moved it
to another web server running apache 2.0.58/php5.0.4 the same thing happens. I’ve
attempted to setup a core dump directory using the CoreDumpDirectory directive,
the directory is owned by the apache user, however nothing is ever outputted. I
did read that this has something to do with apache starting as root and then
switching to the correct user, but with kernel 2.4+ it should still output,
maybe im wrong. Next I tried to setup mod_whatkilledus (http://people.apache.org/~trawick/mod_whatkilledus.c),
I compiled apache with –enable-exception-hook, and I have the
EnableExceptionHook directive on and the module is loaded, however as you can
see from my log output mod_whatkilledus is not doing anything. Is there
something im missing to make both of these work? Any help would be appreciated
as this is driving me nuts =] -Nick Nick Wilson Web Developer Digitally Imported, Inc. |
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