Integer overflow in memory_limit check detected, if i dont remember bad, is a bug from 4.4.0

I run from php 4.3.* compiled by hand in my machine without problems

My question is if your php5.1 rpm work ok with plesk 8.1 and CentOS 4.4 ??
I never compile php5, have you the src rpm to try to rebuild in my vmware enviroment ??
Thanks a lot and excuse my broken english