Re: [LAD] Patching linux 2.6.26.3

Tim Goetze wrote: > [Tim Goetze] > >> [victor] >>> I was told to revert to 2.6.24.17 (not possible in my specific >>> case, but there you go), in this list. Or to join the tuner's list. >> http://www.kernel.org/pub/linux/kernel/projects/rt/patch-2.6.26.3-rt2.bz2 >> >> >> worked for me. Applied cleanly and compiled well after turning off >> some RCU-related preemption options that caused compilation errors, >> but I was in no mood to find out the exact how and why. So far, it >> has collected a few hours of solid uptime too, but I haven't done >> any latency measuring. > Update: on my laptop, the patched 2.6.26.3 kernel boots into an > endless list of tracebacks on the console. On the main box, USB > MIDI input is only read as soon as a key is pressed on the USB > keyboard (the one with the letters, not the MIDI one ...). USB MIDI > out is broken, too. So it's back to the old version. > ah, it seems i'm not alone.

i'm currently recovering myself from schock after returning from vacation and while trying 2.6.26.x-rt for the rentrýe it all seemed to work fine except omg... midi timing is a wreck, specially wrt.alsa sequencer. event delivery is completely fubar. i mean, completely. true showstopper, whatever :( cacophony seems to be the right word to express what it is. however, didn't had the time to check whether NOHZ is at stake. i'm certainly going back to 2.6.25.x-rt where things are still sane and pleasant for a while. btw, having NOHZ=y (aka tickless kernel) has been the norm here, since its inception