I'm certainly no expert, but have you run a memory test on this server?
Maybe it's a red herring, but the "Failed to read a valid object file
image from memory" message and the fact that it's started crashing
suddenly after working for 3 years would make me suspicious. If you
don't have time to run memtest through it's paces, maybe you can try
reseating/swapping around the RAM (or swapping compatible RAM from
another less mission-critical server) and see if the nature of the
problem changes or goes away.
Paul
On 9/12/2011 7:02 AM, dhottin...@harrisonburg.k12.va.us wrote:
I recently started get seg faults on a production server that has been
online for 3 years now. At first I was convinced it was a faulty php
script in one of the cms sites, but now it seems to happen fairly
often. I actually used a little bash script that restarts apache when
it sees the segfault in the logfiles. I have a core dump from the
latest fault:
GNU gdb Red Hat Linux (6.3.0.0-1.134.fc5rh)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and
you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for
details.
This GDB was configured as "i386-redhat-linux-gnu"...(no debugging
symbols found)
Using host libthread_db library "/lib/libthread_db.so.1".
Failed to read a valid object file image from memory.
Core was generated by `/usr/sbin/httpd'.
Program terminated with signal 11, Segmentation fault.
<SNIP>
Ive been trying to figure out what is causing the sudden onset of the
segfaults, and havent pinpointed it yet. If anyone can look at the
coredump file and interpret it for me that would be great. The
websites that I think are causing the issue are using cms made simple
1.6.8.
If there is a config change I can make to my httpd.conf that would
alleviate this I would gladly do so.
Incidently when the segfaults occur, users get an error that the page
can not be found, or server is refusing connection to that page.
Thanks for helping,
ddh
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