Subject: [linux-audio-user] Re: Linux IRQ datapoint
From: Lee Revell (rlrevell_AT_joe-job.com)
Date: Tue Oct 12 2004 - 00:10:29 EEST
On Mon, 2004-10-11 at 16:59, Mark Knecht wrote:
> I was building a new kernel under FC2 this morning trying to make FC2
> equal to my Gentoo kernel which is working very well. I made a mistake
> on this new kernel and forgot to turn on 'APIC contoller for UMP
> machines'. When the kernel booted I got all sorts of xruns. The IRQ
> was threaded, so I set it for non-threaded but still got a lot of
> xruns. (>100 in 10 minutes)
>
> I rebuilt the kernel where the only change I made was to enable APIC
> interrupts and IO-APIC controllers for UMP. The kernel booted and has
> been running for 30 minutes with no xruns...
>
> Just another IRQ datapoint, but that was the only change I made...
>
That is really weird, most people report better results _disabling_ APIC
on UP.
Lee
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