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From: davej@suse.de
Date: Tue, 14 Nov 2000 01:08:51 +0000 (GMT)
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
cc: mharris@opensourceadvocate.org
Subject: Re: UDMA66/100 errors...
Message-ID: <Pine.LNX.4.21.0011140106040.1173-100000@neo.local>
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Mike Harris wrote..

>I'm getting the following error when I try and enable UDMA on my
>new IBM Deskstar UDMA100 drive:
>...
> DMA modes: mdma0 mdma1 mdma2 udma0 udma1 *udma2 udma3 udma4 udma5

Ok, the drive supports UDMA5 (ATA100)

> setting xfermode to 67 (UltraDMA mode3)
>ide0: Speed warnings UDMA 3/4/5 is not functional.

Why can this be?

>00:07.1 IDE interface: VIA Technologies, Inc. VT82C586 IDE [Apollo] (rev 10)

This chipset only does up to UDMA2.

regards,

Davej.

-- 
| Dave Jones <davej@suse.de>  http://www.suse.de/~davej
| SuSE Labs

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