> On Tue, 14 Dec 1999 kernel@ddx.a2000.nu wrote:
>
> > On Mon, 13 Dec 1999, Alan Cox wrote:
> >
> > > Ok this mops up the remaining bug reports and fixes. I still have a few
> > > pending unresolved bugs but not enough to worry about.
> > >
> > > 2.2.14pre13
> > > o Cure SMP deadlock on non DMA ide disk (me)
> >
> > non DMA ?
>
> Alan,
>
> I will bail you out of the question....
>
> All modern drives are designed with DMA transfers.
> Should DMA fault out for any reason......We revert to PIOing.
> The fastest method is multi-read/write and blowing off the DRQ until we
> complete the total transfer request.
>
> Since most, me included, are DMA centric, the classic transfer mode of
> PIOing is sometimes overlooked and then cleaned up as an afterthought.
>
> This was the "afterthought".
so this fix, will not fix the smp / ide problem
with multiple udma/66 controllers etc. ?
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