Excerpts from Rick Thomas's message of Son Dez 19 18:26:04 +0100 2010:
Dec 19 11:53:12 dillserver kernel: [ 21.442851] snd_rawmidi:
disagrees
about version of symbol snd_info_register
Dec 19 11:53:12 dillserver kernel: [ 21.455570] snd_rawmidi:
Unknown
symbol snd_info_register
This looks like you (or a program most probably udev) tries to load a
module that is not compiled for the exact currently running kernel.
Please pay attention that you compile your modules with the right
kernel headers for the target kernel.
If you compiled snd-aoa yourself please check that you compiled with
the correct kernel headers (from the corresponding linux-headers
package if you are running a Debian kernel.)
Gaudenz