Suicidal apache

[Esni]

I have a prob with my apache since it likes to die every now and then. For some reason it also likes to restart itself about 30 minutes after it has died.

The apache logs aren't giving that much information about what happens and at the moment the only most likely answer is that a php-script causes a memory leak(I have memory exhaust-errors in the /var/log/apache2/error.log) which kills apache when it happens in the same as cronjobs are running.

I was wondering if people in here have any idea how to perhaps locate this memoryleak php-script since omega doesn't give too specific data of a single user in the server. Or if there is a way to fix it in some other way.