Re: FS Corruption in 2.1.109 (fwd)

Alan Cox (
Wed, 29 Jul 1998 22:56:12 +0100 (BST)

> Oh, I mean: "Oh his machine".


> that 2.1.x defaulted to having CONFIG_BLK_DEV_IDEDMA set to 'y', but in
> 2.0.x we have CONFIG_BLK_DEV_TRITON instead (again defaulting to 'y'), but
> when the name changed maybe something else changed too?

Its less generic - but most people have triton chipsets if they have DMA

> While the newer code seems to enable DMA whenever the drive reports
> supporting it.

Drive/chipset pair (obviously enough). But yes.

> Note that it could easily be some other timing thing that triggers it.
> Which is definitely supported by the thing that it seems to have appeared
> at least for one person between 2.1.101 and 2.1.103 even though there are
> no real changes wrt either disk driver or filesystem in those patches as
> far as I can see.

See the other message I sent when I did a summary of non SMP by drive type.
For the uniprocessor case once I did that it was obviously drive firmware.

So for the non SMP case I think its solved and Linus can have a small gold
star. SMP alone has no obvious pattern at all (except SMP 8( )


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