linux-kernel - Re: [PATCH] mm: fix page_mkclean

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Message-ID: <20061228093041.GA14626@deprecation.cyrius.com>
Date:	Thu, 28 Dec 2006 10:30:41 +0100
From:	Martin Michlmayr <tbm@...ius.com>
To:	Gordon Farquharson <gordonfarquharson@...il.com>
Cc:	Linus Torvalds <torvalds@...l.org>,
	David Miller <davem@...emloft.net>, ranma@...edrich.de,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>, andrei.popa@...eo.ro,
	Andrew Morton <akpm@...l.org>, hugh@...itas.com,
	nickpiggin@...oo.com.au, arjan@...radead.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: fix page_mkclean_one

* Gordon Farquharson <gordonfarquharson@...il.com> [2006-12-27 22:38]:
> >That's just 400kB!
> >
> >There's no way you should see corruption with that kind of value. It
> >should all stay solidly in the cache.
> >
> >Is this perhaps with ARM nommu or something else strange? It may be that
> >the program just doesn't work at all if mmap() is faked out with a malloc
> >or similar.
> 
> Definitely a question for the ARM gurus. I'm out of my depth.

The CPU has a MMU.  For reference, it's a IXP4xx based device with 32 MB
of memory.
-- 
Martin Michlmayr
http://www.cyrius.com/
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