It would also be interesting to know what apache modules you have enabled and how the output of top looks just before the OOM situation (i.e. are there many large apache2 processes or only a few very large ones?).
You could also try tweaking "memory_limit" in your php.ini.
It would also be interesting to know what apache modules you have enabled and how the output of top looks just before the OOM situation (i.e. are there many large apache2 processes or only a few very large ones?).
You could also try tweaking "memory_limit" in your php.ini.