[linux-audio-user] jack and Edirol UA-1A USB soundcard

Hi I'm trying to get jack running with my Edirol UA-1A USB soundcard. The card works well with alsa (so no jack) but my system freezes after a while (often when a client, fx xmms or ams) disconnects. Anybody has a clue how to proceed or what could be wrong? Here's some hopefully relevant info: atte@aarhus:~$ cat .jackdrc /usr/bin/jackd -R -dalsa -dhw:1 -r44100 -p256 -n3 atte@aarhus:~$ cat /proc/asound/cards 0 [SI7012 ]: ICH - SiS SI7012 SiS SI7012 with ALC200,200P at 0xdc00, irq 10 1 [UA1A ]: USB-Audio - EDIROL UA-1A Roland EDIROL UA-1A at usb-0000:00:03.1-2, full speed atte@aarhus:~$ cat /etc/modutils/alsa alias char-major-116 snd alias char-major-14 soundcore # i810 alias sound-service-0-0 snd-mixer-oss alias sound-service-0-1 snd-seq-oss alias sound-service-0-3 snd-pcm-oss alias sound-service-0-8 snd-seq-oss alias sound-service-0-12 snd-pcm-oss alias snd-card-0 snd-intel8x0 alias sound-slot-0 snd-card-0 # ua-1a alias sound-service-1-0 snd-mixer-oss alias sound-service-1-3 snd-pcm-oss alias sound-service-1-8 snd-seq-oss alias sound-service-1-12 snd-pcm-oss alias snd-card-1 snd-usb-audio alias sound-slot-1 snd-card-1 # virtual midi alias sound-service-2-1 snd-seq-oss alias sound-service-2-8 snd-seq-oss alias snd-card-2 snd-virmidi alias sound-slot-2 snd-card-2 #evolution 1 alias snd-card-3 snd-usb-audio alias sound-slot-3 snd-card-3 #evolution 2 alias snd-card-4 snd-usb-audio alias sound-slot-4 snd-card-4 # options snd-intel8x0 index=0 options snd-usb-audio index=1,3,4 vid=0x0582 -- .''`. Peace, love & harmony : :' : Atte `. `' `- http://www.atte.dk