It still crashes on the raspbian lite install. My recovery / setup process is this:
$ pulseaudio --kill; sleep 1; kill -9 $(pgrep jack_mixer); sleep 1; kill -9 $(pgrep jackdbus);
$ ./myjackdbus.sh ; sleep 1; jack_control start; sleep 1; pulseaudio --kill; sleep 1; ./myjackdbus.sh ;
$ jack_mixer & sleep 1; wmctrl -r jack_mixer -e 0,0,0,141,300; pulseaudio --kill; sleep 1; pulseaudio --start; sleep 1; qjackctl; speaker-test -c 2 -l 1
$ sudo renice -n -15 $(pgrep jackdbus); sudo renice -n -10 $(pgrep X); sudo renice -n -10 $(pgrep jack_mixer); sudo renice -n -5 $(pgrep pulseaudio)
The renice seems to make it take longer to failure. The jack_mixer is there to lower the volume since the hardware has no software mixer options. I could sub in a calf-plugin of the eq variety for the same functionality, but it still fails on that too. Sometimes the failure is bad enough that I have to reboot to regain the audio interface, but most times the above works. Just 4 one liners, to kill off old fails, start jackdbus, start extras and do routing, then renice. It's very annoying, but at least I've gotten past failing every 15 minutes now.