debian RT kernel and beaglebone

I’m struggling… to figure out what the heck might be going on… I’ve tryed both jack1 and jack2… I ahve a beagletoys audio card… I’m told this works in Angstrom…

frazera@debian:~$ jackd -p2 -d alsa hw:EVM
jackdmp 1.9.9
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2012 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK server starting in realtime mode with priority 10
Bus error
frazera@debian:~$