linux-kernel - Re: SATA exceptions with 2.6.20-rc5

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Message-ID: <20070204011351.GA2069@atjola.homenet>
Date:	Sun, 4 Feb 2007 02:13:51 +0100
From:	Björn Steinbrink <B.Steinbrink@....de>
To:	Robert Hancock <hancockr@...w.ca>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Larry Walton <lwalton@...l.com>, s0348365@....ed.ac.uk,
	pomac@...or.com, chunkeey@....de, Jeff Garzik <jeff@...zik.org>
Subject: Re: SATA exceptions with 2.6.20-rc5

On 2007.02.02 23:48:14 -0600, Robert Hancock wrote:
> Björn Steinbrink wrote:
> >On 2007.01.24 01:39:23 +0100, Björn Steinbrink wrote:
> >>On 2007.01.23 17:18:43 -0600, Robert Hancock wrote:
> >>>Larry Walton wrote:
> >>>>The last patch (sata_nv-force-int-dev-in-interrupt.patch) 
> >>>>seems to have fix the problem.  Much appreciated, 
> >>>>thank you. I'd consider it a must have in 2.6.20.
> >>>Can any of the rest of you that have been seeing this problem also 
> >>>confirm that this fixes it?
> >>Seems to work for me, uptime is about an hour now and no exception yet.
> >>Had the stress test running for only about 10 minutes, but I usually got
> >>an exception within an hour even during plain irssi usage, so I'm quite
> >>confident that the patch fixes it.
> >
> >Or maybe not :( Just got an exception on 2.6.20-rc6. Took 4 days of
> >uptime to trigger, so it's just a lot harder to trigger now.
> 
> Same exception details as before?

Yes, exactly the same.

> There's a patch in -mm (sata_nv-use-adma-for-nodata-commands.patch) 
> which should hopefully avoid this problem for the cache flush commands, 
> at least - can you try that one out? You'll have to apply the other 
> sata_nv patches in -mm first, i.e. this order:
> 
> http://www2.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20-rc6/2.6.20-rc6-mm3/broken-out/sata_nv-cleanup-adma-error-handling-v2.patch
> http://www2.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20-rc6/2.6.20-rc6-mm3/broken-out/sata_nv-cleanup-adma-error-handling-v2-cleanup.patch
> http://www2.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20-rc6/2.6.20-rc6-mm3/broken-out/sata_nv-use-adma-for-nodata-commands.patch

Got 2.6.20-rc7 with them applied now (the rejects seemed trivial enough
for me to fix them). Let's see how that works out...

Björn
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