At Wed, 26 Feb 2003 02:59:45 +0100,
Richard Stevens wrote:
> 
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> Hi,
> 
> I'm trying to get my Edirol UM-2 USB Midi adapter to work but I'm only partly 
> successful. I'm running RC7 on a 2.4.20 SMP kernel (SMP-System). The adapter 
> is loaded as 3rd soundcard via snd-usb-audio. It seems to get loaded 
> correctly since I can see the devices. I'm also running oss emulation on it. 
> I tried various applications to access the interface but whenever one does 
> the system freezes. 
> 
> When trying to launch rosegarden, the rosgarden sequencer enumerates 4 devices 
> corretly (twice in and out) and then the system freezes. 
> 
> I'm a little lost on how I could provide futher information necessary to debug 
> the problem since everything locks and thus I don't see any logged messages 
> or debug output. 

please try the UP kernel and check whether it still locks up.
if it doesn't, most likely a deadlock happened somewhere on SMP.


Takashi


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