> I guess my main motivation for trying out the 2.6 kernel is laziness. > Just build the kernel and get the performance and ALSA without patches > or compiling extra stuff. At least, that was _supposed_ to be the way > it worked! I'll keep trying the new kernels, but keep the old faithful > 2.4 kernel around for recording. > > I'm _still_ curious about what causes the long xruns, though. New versions of alsa can be compiled with the "--debug=full" option (I don't think the current code in the kernel has that). That will enable you to tweak a proc variable to dump the kernel stack on each xrun, it is something like /proc/asound/card0/pcm0p/xrun_debug (for playback, same for recording in pcm0c). "echo "2">/proc/.../xrun_debug" will turn reporting on. You will get the stack traces in /var/log/messages. Not that you will immediately know exactly what has to be done to get it fixed, of course :-) IMHO stick with 2.4.x, in my tests 2.6.x is not even close to being ready for pro audio work. It will get better but it will take some time. -- Fernando
