Re: [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch

Lee Revell
2004-07-21T06:07:13Z

On Wed, 2004-07-21 at 03:03, Andrew Morton wrote:
> Lee Revell <rlrevell@joe-job.com> wrote:
> >
> > discovered I can reliably produce a large XRUN by toggling Caps Lock,
> > Scroll Lock, or Num Lock. This is with 2.6.8-rc1-mm1 + voluntary
> > preempt
>
> That's odd. I wonder if the hardware is sick. What is the duration is the
> underrun? The info you sent didn't include that.
>
> > (I modified the patch by hand to apply on this kernel, as
> > 2.6.8-rc2 disables my network card).
>
> eh? That's a rather more serious problem. Does the via-rhine.c from
> 2.6.8-rc1-mm1 work OK if you move it into 2.6.8-rc2?

Yes, the version from 2.6.8-rc1 works, the one from 2.6.8-rc2 does not.
It looks like 2.6.8-rc1 actually had a newer version of this file.

This one works:

LK1.2.0-2.6 (Roger Luethi)
- Massive clean-up
- Rewrite PHY, media handling (remove options, full_duplex, backoff)
- Fix Tx engine race for good

This one does not:

LK1.1.19 (Roger Luethi)
- Increase Tx threshold for unspecified errors

Relevant options:

CONFIG_VIA_RHINE=m
CONFIG_VIA_RHINE_MMIO=y

Lee