From: "Jay L. T. Cornwall" <jay@esuna.co.uk>
To: Jay Cliburn <jacliburn@bellsouth.net>
Cc: linux-kernel@vger.kernel.org, kronos.it@gmail.com,
Chris Snook <csnook@redhat.com>
Subject: Attansic L1 page corruption (was: 2.6.22-rc5: pdflush oops under heavy disk load)
Date: Mon, 25 Jun 2007 13:16:55 +0100 [thread overview]
Message-ID: <467FB237.2030703@esuna.co.uk> (raw)
In-Reply-To: <20070624164519.04f215b8@osprey.hogchain.net>
Jay Cliburn wrote:
> For reasons not yet clear to me, it appears the L1 driver has a bug or
> the device itself has trouble with DMA in high memory. This patch,
> drafted by Luca Tettamanti, is being explored as a workaround. I'd be
> interested to know if it fixes your problem.
Yes, it certainly seems to. Now running with this patch and 4GB active,
I've transferred about 15GB with no problem so far. It usually oopses
after a GB or two.
I guess it's not an ideal solution, architecturally speaking, but it's a
good deal better than an unstable driver. If there's any other patches
you'd like me to test or traces to capture, I'm happy to help out.
Otherwise I'll run with this one for now since it does the job!
Thanks.
--
Jay L. T. Cornwall, http://www.esuna.co.uk/~jay/
PhD Student
Imperial College London
next prev parent reply other threads:[~2007-06-25 12:17 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-22 0:07 2.6.22-rc5: pdflush oops under heavy disk load Jay L. T. Cornwall
2007-06-22 14:47 ` Chuck Ebbert
2007-06-22 15:04 ` Jay L. T. Cornwall
2007-06-23 12:14 ` Jay L. T. Cornwall
2007-06-23 17:23 ` Andrew Morton
2007-06-24 9:57 ` (Last oops is Tainted: P) " Oleg Verych
2007-06-24 10:10 ` Jay L. T. Cornwall
2007-06-24 10:57 ` Oleg Verych
2007-06-24 17:59 ` Jay Cliburn
2007-06-24 20:31 ` Jay L. T. Cornwall
2007-06-24 21:45 ` Jay Cliburn
2007-06-25 12:16 ` Jay L. T. Cornwall [this message]
2007-06-25 12:42 ` Attansic L1 page corruption Jay Cliburn
2007-06-25 21:18 ` [PATCH] atl1: disable 64bit DMA Luca Tettamanti
2007-06-25 21:36 ` Chris Snook
2007-06-25 21:51 ` Jay L. T. Cornwall
2007-06-25 21:57 ` Chris Snook
2007-06-25 23:00 ` Jay Cliburn
2007-06-25 23:17 ` Jeff Garzik
2007-06-25 23:40 ` Chris Snook
2007-06-26 21:12 ` Luca
2007-06-27 0:16 ` Jay Cliburn
2007-06-25 12:58 ` Attansic L1 page corruption (was: 2.6.22-rc5: pdflush oops under heavy disk load) Luca
2007-06-24 22:51 ` 2.6.22-rc5: pdflush oops under heavy disk load Jesper Juhl
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