2.6.12, which comes with the RT-Limits patch and I
patched PAM myself
have you tried vanilla 2.6.13-whatever. 2.6.12 was horrible for me, but it seems .13 has
the ingo patches (sans hard-realtime) rolled in, as well as new timing resolution stuff
(1000hz), and whatever it is amongst those, made everything finally work as it should (and
much lower latencies than windows ever had)