via ide issue

via ide issue

[Sipos Ferenc]

Hi!

I have an ASUS K7M mobo with via 686a chipset, my bios recognizes my hd
as udma4 capable, I have a dvd drive on the same ide channel as slave,
which is udma2 capable. Even if I give the kernel parameter: ide1=ata66,
(both drives are on the secondary channel) the hd switches back to udma3
mode, and by the dvd, dma is disabled, I have to switch it with hdparm.
Earlier kernels 2.4.4 and so, allowed me to switch to udma4 mode without
file corruption. So, I think, something must be done to correct the
driver problem. Any help appreciated. My current kernel is 2.4.17-rc2,
but the via driver has changed earlier, I think.

Paco 

Re: via ide issue

[Vojtech Pavlik]

On Sun, Dec 23, 2001 at 01:04:28PM +0100, Sipos Ferenc wrote:
> Hi!
> 
> I have an ASUS K7M mobo with via 686a chipset, my bios recognizes my hd
> as udma4 capable, I have a dvd drive on the same ide channel as slave,
> which is udma2 capable. Even if I give the kernel parameter: ide1=ata66,
> (both drives are on the secondary channel) the hd switches back to udma3
> mode, and by the dvd, dma is disabled, I have to switch it with hdparm.
> Earlier kernels 2.4.4 and so, allowed me to switch to udma4 mode without
> file corruption. So, I think, something must be done to correct the
> driver problem. Any help appreciated. My current kernel is 2.4.17-rc2,
> but the via driver has changed earlier, I think.

There were no changes in the VIA driver since 2.4.4 which could cause
this, as far as I know. Now if you could provide some more information
(/proc/ide/via, hdparm -i /dev/hd* ...), perhaps we could find out
what's happening.

-- 
Vojtech Pavlik
SuSE Labs