I noticed this a few weeks ago on one of my servers.
PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND
16432 nobody 25 0 8504 36 8 R 62.9 0.0 305:24 0 httpd
A process for httpd will just sit there and nag at the cpu for hours upon hours. I assume I need to set some sort of time out. Where would I go to try and fix this thing.