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SubjectRe: FS Corruption in 2.1.109 (fwd)
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?

NO.

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
load.

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
place.

Back to lurk mode...

Dave

David Whysong dwhysong@physics.ucsb.edu
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 http://www.physics.ucsb.edu/~dwhysong for my PGP public key.




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