Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-19

From: Rui Nuno Capela
Date: Wed Dec 01 2004 - 14:03:48 EST


Ingo Molnar wrote:
>
>> ok, this could be ACPI CPU-sleep related. Could you disable all ACPI
>> options in your .config (as a workaround), and re-check whether the
>> xruns still occur?
>
> i think i found the bug - it's an upstream ACPI bug. Does the patch
> below (or the -31-19 kernel, which i've just uploaded) fix the xruns?
>

So far so good.

I have now an armed RT-V0.31-19 on my laptop, running for about 30 minutes
already, running the usual 'jackd -R -dalsa -dhw:0 -r44100 -p64 -n2 -S -P'
from qjackctl, several qsynth (fluidsynth) engines are up and running,
normal desktop janitor work (KDE) and yes, ACPI is on. Oh, wi-fi is also
pumping nice :)

Guess what? No XRUNs, not even one to show you a single latency trace.

I'll keep you posted, if anything goes less right than it is :).
--
rncbc aka Rui Nuno Capela
rncbc@xxxxxxxxx

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