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    SubjectRe: UDMA is NFG on Ultra33 (CMD646 in disguise)
    pmonta@halibut.imedia.com wrote:
    >
    > > The corruption seems to happen only when there is contention
    > > between the Ultra33 and another PCI bus-master.
    >
    > Do you also see problems with the normal, non-UDMA busmaster
    > operation? If there is a PCI-controller bug for this chip,
    > likely enough any busmaster mode would be bad.

    PIO4 works fine, so I would expect DMA2 work as well.
    (identical timings to PIO4).

    Testing for each type of failure takes an hour or so,
    and I'd rather be elsewhere.

    > Have there been corruption reports under Windows?

    We don't do Windows here.
    --
    mlord@pobox.com

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