Re: Problems w/ UDMA

Andrea Arcangeli (
Thu, 26 Feb 1998 15:38:04 +0100 (CET)

On Wed, 25 Feb 1998, Roy P. Turner wrote:

>I notice you're using Western Digital drives on a VIA chipset. I also use
>Western Digital UDMA drives on a VIA chipset based board (FIC PA-2007 w/
>VIA VP2 chipset) and I do have problems with the drives in UDMA mode *IF*
>I turn on write cacheing with hdparm. The drives work fine in UDMA mode

The same here.

>with write cacheing off and they work fine in non UDMA mode with write
>cacheing both on and off. I'm pretty sure it's a kernel problem as the
>drives work fine in UDMA mode with write cacheing on under winblowz.
>My question to you is if your're turning write cacheing on early in you
>boot sequence or does your bios have the ability to set write cacheing
>on or off. My drives are WD AC22000L and WD AC121000L.

Does 2.1.88 work with your sound device?

Andrea[s] Arcangeli

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