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SubjectRe: 2.4.23-bk bogus edd changeset - Re: 2.4.23 compile error in edd
On Wed, 10 Dec 2003, Matt Domsch wrote:

> > The ds segment is not pointing to the correct segment AND/OR the offsets
> > into the segment used for the writes are bogus. You write straight into
> > ds and ds:si referenced memory but you never setup ds in the first
> > place. So the writes done by the EDD code corrupt the loaded compressed
> > kernel and the decompression fails.
>
> ds is set up already to point at the empty_zero_page, else none of
> what I'm doing is correct. But, it is very likely that something else
> is using 0x228 in empty_zero_page but isn't marked as using it in
> Documentation/i386/zero-page.txt.
>
> You've been patient, and thorough. As another test, could you change
> include/asm-i386/edd.h: DISK80_SIG_BUFFER from 0x228 to 0x2cc (the
> four bytes immediately before the e820 memory buffer), and see if that
> helps? If so, I'll submit a patch to use that instead, and another
> that markes 0x228 as in use by something else.

Hi Matt,

sorry for the delay but I am now on holidays until January because of my
impending wedding and I won't be back at work, where the affected PC lives
until 5th or 6th January (whichever is the Monday). I will try it then,
sorry to have to keep you waiting so long.

Best regards,

Anton
--
Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @)
Unix Support, Computing Service, University of Cambridge, CB2 3QH, UK
Linux NTFS maintainer / IRC: #ntfs on irc.freenode.net
WWW: http://linux-ntfs.sf.net/ & http://www-stu.christs.cam.ac.uk/~aia21/
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