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

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Message-Id: <200703121207.19042.s0348365@sms.ed.ac.uk>
Date:	Mon, 12 Mar 2007 12:07:18 +0000
From:	Alistair John Strachan <s0348365@....ed.ac.uk>
To:	Frank van Maarseveen <frankvm@...nkvm.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.20*: PATA DMA timeout, hangs (2)

On Monday 12 March 2007 11:24, Frank van Maarseveen wrote:
> On Mon, Mar 12, 2007 at 09:54:47AM +0100, Frank van Maarseveen wrote:
> > 2.6.19 is ok, 2.6.20.[12] hangs from the moment DMA is turned on (hdparm
> > -d 1 /dev/hda):
> >
> > 	hda: dma_timer_expiry: dma status == 0x20
> > 	hda: DMA timeout retry
> > 	hda: timeout waiting for DMA
> > 	hda: status error: status=0x58 {
> > 	DriveReady
> > 	SeekComplete
> > 	DataRequest
> > 	}
[snip]
> This system has SATA but there's only one PATA disk

Not a solution, unfortunately, but try disabling CONFIG_IDE and using Alan's 
new PATA drivers. For your Intel systems, this should mean you need only:

CONFIG_ATA_PIIX

For both SATA and PATA support. You'll need the appropriate SCSI modules built 
in (if you say =y), i.e. SCSI disk and SCSI CDROM should be built in.

-- 
Cheers,
Alistair.

Final year Computer Science undergraduate.
1F2 55 South Clerk Street, Edinburgh, UK.
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