linux-kernel - Re: 2.6.22-rc5: pdflush oops under heavy disk load

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Message-ID: <20070624125957.2e27820c@osprey.hogchain.net>
Date:	Sun, 24 Jun 2007 12:59:57 -0500
From:	Jay Cliburn <jacliburn@...lsouth.net>
To:	"Jay L. T. Cornwall" <jay@...na.co.uk>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.22-rc5: pdflush oops under heavy disk load

On Sat, 23 Jun 2007 13:14:40 +0100
"Jay L. T. Cornwall" <jay@...na.co.uk> wrote:

> The common factor here seems to be the buffer_head circular list
> leading to invalid pointers in bh->b_this_page.
> 
> I'm beginning to suspect the Attansic L1 Gigabit Etherner driver
> (marked as EXPERIMENTAL in 2.6.22-rc5). I can't reproduce these
> panics on disk-to-disk copies or SCP across the localhost interface.
> However, SCP from a server onto either of two different HDDs hits
> these oopses fairly quickly.

How much RAM is installed in your machine?  If it's 4GB or more, does
your problem go away if you boot with mem=3000M?

Jay
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