Re: VIA vt82c686b and UDMA(100)

William Park (parkw@better.net)
Thu, 22 Mar 2001 01:05:07 -0500


On Wed, Mar 21, 2001 at 08:40:21PM -0800, Brian Dushaw wrote:
> Dear Linux Kernel Wisemen,
> I have been following the discussion of the VIA vt82c686b chipset
> and the troubles people have had in getting UDMA(100) to work. This
> is to report that I have now tried the 2.4.2-ac20 kernel and the
> 2.2.18 kernel with Andre's patch (dated March 20) and neither of
> them get the disk speed up to where it ought to be. hdparm -t reports
> back 11 MB/s or so for either kernel.
> VIA82CXXX enabled, and I also tried the ide0=ata66 flag, in desparation.
> At boot up both kernels report the disk as UDMA(100) - everything
> seems to be peachy keen, but for the sluggish disk performance.
>
> Merely a report from the front lines,

Try 'hdparm -d1 -t', and see what you get.

:wq --William Park, Open Geometry Consulting, Linux/Python, 8 CPUs.
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