26 Mar
2009
26 Mar
'09
5:30 p.m.
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hollunder(a)gmx.at wrote:
On Thu, 26 Mar 2009 19:52:40 +0100
Robin Gareus <robin(a)gareus.org> wrote:
Congrats. welcome to the club ;)
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We've got a winner! 2.6.29-rt1
I've just succeeded with a few tests: jackd realtime (64fpp with a USB
UA25) recording/playing Audio and MIDI with qtractor & qsynth and I
played a 32 channel ardour session - no xrun in sight!
I know this is old news since 64studio already ships a 2.6.29
pre-release - However, I run a debian squeeze/sid and
2.6.29-release-candidates were causing an OOPS on this system.
As it turned out it was caused by "irqbalance"! It took me quite a
while to track down that the rt kernel is no longer compatible with
irqbalance (it works fine with 2.6.24-rt).
Here's a debian package built for core2:
http://rg42.org/_media/wiki/kernel/linux-image-2.6.29-rt1_2.6.29-rt1-10.00.…
and the corresponding .config file:
http://rg42.org/_media/wiki/kernel/config-2.6.29-rt1.txt
kudos to the rt-linux devs.
have fun,
robin
I compiled 2.6.29-rc8-rt4 yesterday and 2.6.29-rt1 today (my first self
compiled kernels). I happen to have the same interface and it seems to
work well here so far, everything seems to work and misbehaving
applications still produce xruns.
How do you define "misbehaving" ?!
I managed to crash ardour3 and that got me an xrun - but I've got no
complaints there ;)
Thanks for the warning about irqbalance, I was about
to try it..
(Is this the script by fernando lopez leczano or something else?)
It is not Rui's rtirq script. You should definitely get that:
http://www.rncbc.org/jack/rtirq-20090131.tar.gz
"irqbalance" is a different beast. By default all IRQs are handled by
the first CPU only. If you have a SMP system irqbalance can distribute
interrupt handling to all available CPUs.
robin
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