linux-kernel - Re: 2.6.24-rc2: Reported regressions from 2.6.23 (updated)

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Message-Id: <20071112171156.da6352bd.akpm@linux-foundation.org>
Date:	Mon, 12 Nov 2007 17:11:56 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"Thomas Lindroth" <thomas.lindroth@...il.com>
Subject: Re: 2.6.24-rc2: Reported regressions from 2.6.23 (updated)

On Sun, 11 Nov 2007 22:46:43 +0000 Alan Cox <alan@...rguk.ukuu.org.uk> wrote:

> > [PATCH] pata_amd/pata_via: de-couple programming of PIO/MWDMA and UDMA timings
> > 
> > * Don't program UDMA timings when programming PIO or MWDMA modes.
> > 
> >   This has also a nice side-effect of fixing regression added by commit
> >   681c80b5d96076f447e8101ac4325c82d8dce508 ("libata: correct handling of
> >   SRST reset sequences") (->set_piomode method for PIO0 is called before
> >   ->cable_detect method which checks UDMA timings to get the cable type).
> 
> I'm not sure this helps as if the ACPI _GTF method is looking at the
> flags and stuff but it has to be worth a try.
> 
> 
> Works for me as a 2.6.24 band aid

I'm looking at that "Untested, please don't merge until it is confirmed to
fix the problem." comment..

Thomas, can you please give it a try, let us know?

Thanks
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