Would using a Promise UDMA card be a good workaround for BX/UDMA bugs? There is
still the interaction of the PCI bus with the BX chipset there, and it isn't
clear to me that an add-on card will always be a workaround. In my case, I have
a Abit BH6 1.1 that works fine with normal DMA, but locks with UDMA modes; so a
possible timing problem with UDMA sounds like a "Promise"ing candidate.
On 03-Apr-2000 Andre Hedrick wrote:
> On Mon, 3 Apr 2000, Alan Cox wrote:
>
>> IDE fails on some VIA boards (eg the i-opener)
>> PCMCIA/Cardbus hangs, IRQ problems, Keyboard/mouse problem (may be fixed ?)
>> Use PCI DMA by default in IDE is unsafe (must not do so on via VPx x<3)
>
> I finally have chipset code that should correct this issue for VIA.
>
>> Use PCI DMA 'lost interrupt' problem with some hw [which ?]
>
> Some versions of the 440BX and the update docs are very lose on how to
> detect which chip version and revision are broken with not fix.
>
>> Multiwrite IDE breaks on a disk error
>
> Explain.........Please........
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