My website algebra.com has been moved to a new server running Ubuntu Hardy.

While everything seems to be working well, esp. the kernel and solid state disk, I have one issue.

The issue is that at random moments, usually once or twice a day, my webserver starts returning completely empty pages instead of actual content. The pages are mod_perl based.

I tried restarting apache every 30 minutes, but it does not help. It appears to be a random issue as opposed to a "server getting tired" issue.

I have a cron job that checks my webserver every 5 minutes and restarts it when necessary, but obviously I hate the situation and would like to fix it.

Any pointers to get started would be appreciated.

Igor