Hi!
I roughly have the same setup. Lenny, self-bult kernel (rt-patched and
non-rt-patched), Jack 0.112.0.
Did you ever try skipping the -P70? I don't do it and it works nicely. No
xrun no nothing on the vanilla 2.6.23, still very OK, with lots of delays and
some xruns on the rt-patched kernel (2.6.24-2.6.26). Even my card is almost
the same. My alsa is built-in though and I don't use the alsa-jack plugin
rarely. But still no trouble with that.
/dev/shm is not a very good idea though. Had my strange problems with that.
Kindest regards
Julien
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