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Linux/Apache "trap invalid opcode error messages"

I am seeing lots & lots of these errors in /var/log/messages:

kernel: httpd[4802] trap invalid opcode rip:2afb9d6cb89a rsp:2afb9d6f458a error:0

* What does that mean?
* Can I fix it?
* If it can be ignored, how can I prevent the log filling up with these messages?

This is on Linux 2.6.18-194.17.1.el5 on x86_64, CentOS 5.7
Apache version 2.2.3
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2 Solutions
check /var/log/apache/error_log to see whether you can match the errors.
there are kernel updates that may help in resolving this.

You have to determine what is being done that triggers the trap from an underlying event.
This is normaly due to a bug. The trigger for the message could be be located on httpd, in which case an update of apache httpd will solve the problem, otherwise it could be on an apache plugin like php or others.

So to fix it try to update apache httpd and connected software

To remove the message from your logfile you can configure a filter (see the http://www.daemon-systems.org/man/syslog.conf.5.html and search for filter) or have a crontab that runs every so often to remove those lines with
sed -i '/opcode/d' 

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(not tested). Using those scripts result in a clean log file but limit your capacity to understand when the problem get solved.

PaliTreeAuthor Commented:
I found nothing in /var/log/apache/error_log

I found that even httpd -v produced an error.

This is a "cloud server" - so I ditched that drive and did YUM updates from a backup, And, eh voila, the problem has gone away. "Corrupt data" in some way.

Thanks for your help you guys.
PaliTreeAuthor Commented:
Good efforts - but in the end not the solution
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