Re: 2.6.20*: PATA DMA timeout, hangs (2)

From: Frank van Maarseveen
Date: Tue Mar 13 2007 - 05:19:53 EST


On Mon, Mar 12, 2007 at 09:40:25PM +0100, Bartlomiej Zolnierkiewicz wrote:
>
> Hi,
>
> On Monday 12 March 2007, Frank van Maarseveen wrote:
> > On Mon, Mar 12, 2007 at 01:21:18PM +0100, Bartlomiej Zolnierkiewicz wrote:
> > >
> > > Hi,
> > >
> > > Could you check if this is the same problem as this one:
> > >
> > > http://bugzilla.kernel.org/show_bug.cgi?id=8169
> >
> > Looks like it except that I don't see "lost interrupt" messages here. So,
> > it might be something different (I don't know).
>
> From the first mail:
>
> hda: max request size: 128KiB
> hda: 40021632 sectors (20491 MB) w/2048KiB Cache, CHS=39704/16/63
> hda: cache flushes not supported
>  hda: hda1 hda2 hda4
>
> It seems that DMA is not used by default (CONFIG_IDEDMA_PCI_AUTO=n),
> so this is probably exactly the same issue.
>
> Please try the patch attached to the bugzilla bug entry.

2.6.20.2 rejects this patch and I don't see a way to apply it by hand:
ide_set_dma() isn't there, nothing seems to match.

--
Frank
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