Re: FS Corruption in 2.1.109 (fwd)

David Whysong (
Wed, 29 Jul 1998 12:46:43 -0700 (PDT)

On Wed, 29 Jul 1998, Linus Torvalds wrote:
> Note also how he cannot even _enable_ DMA on 2.0.x.
> No wonder 2.0.x doesn't corrupt things, it doesn't even try to use DMA.
> So why does 2.1.x default to using DMA when 2.0.x did the sane thing and
> didn't?
> Maybe this is why the corruption thing hasn't been reported very much for
> older kernels?


I used IDE DMA all the time with 1.3.x and 2.0.x kernels, enabled by
hdparm. I have never had a problem, even with two WD drives under heavy

Mark's IDE driver works well for the vast majority of people. Right now,
my disk throughput is way down because I can't enable DMA, even with
hdparm. I don't see the point in disabling DMA for everyone just because
of a few problems which might not be caused by the IDE driver in the first

Back to lurk mode...


David Whysong
Astrophysics graduate student, University of California, Santa Barbara
PGP Key fingerprint = 9D 51 6E CE 5F 38 F0 E7 56 3C 01 45 CF 03 9F 4A
See for my PGP public key.

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