FWIW, I compiled up the latest CVS HEAD as of last night (just after the CAS stuff was re-added back into APR) on Solaris 8+sendfile, hit the server up pretty hard with ab, fetching 9.5k and 608k jpeg files thousands of times with 50 concurrent non-keepalive connections, and there was no core files or any errors reported in error_log.
This was done with the worker mpm. I'll say 'congratulations!' to that! /dale
