[Jackaudio] Trying to debug jackd crash (version 2)

Howdy jack-audio people. It's good to have the list back! I have been developing a collection of programs that work together for radio automation. It's a port of a project I wrote and use currently under OSX to run a radio station I own. At this point, I have all the core stuff working on Ubuntu, less a new UI, which I have not written yet. But that is mostly OK because my old OSX UI can control most of the functions in the new components, and will work as I transition things. So that bring me to the mostly working part. I have been testing an testing and testing, and have come across a problem where my programs cause jackd to crash after running as a system for a few days. The core-mixer program is persistent. Media players are forked by, and connect back to the core-mixer (arServer) to play their files, etc., as needed, then quit. It appears this repeated life cycle of the media players are the cause, because the jackd crash always occurs just after a media player disconnects from jackd. I am running Ubuntu Studio tools, so as soon as jackd quits, it is re-run. Crashes again one to two more times, then runs without further disturbance, except that my core-mixer it written to quits when it get notice that jackd shutdown. All my core code is in straight C and can be found at https://github.com/eafunk/audiorack. Jackd does not crash with the core-mixer running with a single audio source connected to it, with out the media players loading and unloading. Neither does it quick when left alone with an audio source hard-routed to a destination without the core-mixer running. Can any one suggest how I could debug jackd to figure out what my program is doing to cause the crash? Debugging my code is pointless here, because it doesn't crashes when jackd does. Any pointers on how I can build jackd (the dbus multi-processor version) for debugging? Build tools give me nightmares, but I have to dig in to get this sorted out. Thanks Ethan Funk