Follow up on 4 Gig of DDR on MPC8548E

[Benjamin Herrenschmidt]

> 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.