22 Aug
2008
22 Aug
'08
1:18 p.m.
Tim Goetze wrote:
[Tim Goetze]
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 rentrée 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
byee
--
rncbc aka Rui Nuno Capela
rncbc(a)rncbc.org
[victor]
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.
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.