<A target="_blank" href="http://www.bleedyellow.com/blogs/jasc/entry/mailserver_server_task_hang_at_100_cpu_problem_with_ulimit_n_to_low">Jan Schulz's Domino server</A> was working fine until after the 8.0.2 update was applied. Then it started having problems and needed to be restarted regularly. It took a while to find the problem, at least Jan thinks the problem has been identified. If you know something about it, Jan would like to hear from you.