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Subject: RE: Follow up on 4 Gig of DDR on  MPC8548E
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: "Morrison, Tom" <tmorrison@empirix.com>
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Date: Tue, 26 Jun 2007 09:32:03 +1000
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> apparently after more investigations - it looks like there is something in the ext2 driver code
> that is mal-adjusted....I haven't talked to the guy today who was looking at that - but the ext2
> driver code that was openning a 'virtual file' / console - had some problems mapping that
> space - again, my gut is telling me more stronger there is a problem with signed/unsigned...
> now deeper in the ext2 code...

I very much doubt there is a signed/unsigned issue in ext2 or
elsewhere...

You have CONFIG_HIGHMEM ? What are your setting for KERNELBASE and
PAGE_OFFSET ?

Ben.