Re: 2.1.111: IDE DMA disabled?

Gerhard Mack (
Sat, 25 Jul 1998 15:41:17 -0700 (PDT)

On Sat, 25 Jul 1998, David S. Miller wrote:

> Date: Wed, 25 Mar 1998 22:22:18 +0300 (IST)
> From: Gadi Oxman <>
> The configuration on which the filesystem corruption was observed
> is a Tyan Tomcat III board + WD 2.2GB drive; that motherboard is
> using the 430HX chipset, which pre-dates Ultra-DMA and doesn't
> support CRC check.
> If it's a WD Caviar of some sort, I see these corruptions too. Every
> machine I have ever had the unfortunate luck to have a WD Caviar IDE
> disk in, gave me random corruptions with DMA enabled over time.
> I think the real solution is a "DMA black list" for certain IDE drive
> types and manufacturers.

Older Caviar drives have known corruption problems. I dound that out on
their website a year ago when I was looking for a fix for my dead cavialr
2100 (1.0 gig, broken drive head servo). There is at least 1 store in my
area that refuses to sell them anymore.


Gerhard Mack
irc admin

As a computer I find your faith in technology amusing.

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