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Date: Wed, 25 Apr 2007 20:05:28 +0200
From: Jens Axboe <jens.axboe@oracle.com>
To: Christoph Lameter <clameter@sgi.com>
Cc: linux-kernel@vger.kernel.org, Mel Gorman <mel@skynet.ie>,
       William Lee Irwin III <wli@holomorphy.com>, David Chinner <dgc@sgi.com>,
       Badari Pulavarty <pbadari@gmail.com>,
       Maxim Levitsky <maximlevitsky@gmail.com>
Subject: Re: [00/17] Large Blocksize Support V3
Message-ID: <20070425180528.GH4730@kernel.dk>
References: <20070424222105.883597089@sgi.com> <20070425113530.GX9715@kernel.dk> <Pine.LNX.4.64.0704250833240.24452@schroedinger.engr.sgi.com> <20070425175335.GG4730@kernel.dk> <Pine.LNX.4.64.0704251101490.21918@schroedinger.engr.sgi.com>
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On Wed, Apr 25 2007, Christoph Lameter wrote:
> On Wed, 25 Apr 2007, Jens Axboe wrote:
> 
> > > Impossible. page is not dereferenced. Cannot cause a NULL pointer 
> > > deference.
> > 
> > Sure I know that, hence the oops happening there is likely fallout from
> > something scribbling where it should not have.
> 
> Hmmm... Must be a big scribble. And you are sure that no bouncing or 
> highmem stuff is done? Any way to figure out what that is?

2038MB LOWMEM available.

All of memory is lowmem. There are no bounces going on, for sure.

-- 
Jens Axboe