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    SubjectRe: 2.1.111: IDE DMA disabled?
    Mark Lord wrote:

    > That's from the IDE (ATA) specs. 18" max.
    > The timings with DMA are *identical* to the timings with PIO,
    > so if it fails with DMA, it will fail with PIO as well.
    > Removing DMA from the kernel solves nothing there.

    As per Linus' comment in another email, it does make a difference, it not in
    the cable timings, then in other timings relating to the transfer. Probably
    not the least of which is memory congestion. In any case, it does make a


    Doug Ledford <>
    Opinions expressed are my own, but
    they should be everybody's.

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