Re: OSS Audio borked between 2.6.6 and 2.6.10

From: John W. Linville
Date: Mon Mar 14 2005 - 10:36:56 EST


On Mon, Mar 14, 2005 at 03:59:06AM -0500, Greg Stark wrote:

> Well, I built a slew of kernels but found it on the first reboot.
>
> 2.6.7 doesn't work.

> > 2.6.7:

> > [sound/oss] remove bogus CIV_TO_LVI
> >
> > This patch removes a pair of bogus LVI assignments. The explanation in
> > the comment is wrong because the value of PCIB tells the hardware that
> > the DMA buffer can be processed even if LVI == CIV.
> >
> > Setting LVI to CIV + 1 causes overruns when with short writes
> > (something that vmware is very fond of).

Pretty sure this is/was the problem. I found this to be causing
a problem with Wolfenstein: Enemy Territory. The patch to reverse
this change appears to have been merged into 2.6.11. I suggest you
try that one. :-)

Good luck!

John
--
John W. Linville
linville@xxxxxxxxxxxxx
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