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

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Date:	Wed, 27 Dec 2006 22:38:24 -0700
From:	"Gordon Farquharson" <gordonfarquharson@...il.com>
To:	"Linus Torvalds" <torvalds@...l.org>
Cc:	"David Miller" <davem@...emloft.net>, ranma@...edrich.de,
	tbm@...ius.com, "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

On 12/27/06, Linus Torvalds <torvalds@...l.org> wrote:

> On Wed, 27 Dec 2006, Gordon Farquharson wrote:
> >
> > I don't think so. I did reduce the target size
> >
> > #define TARGETSIZE (100 << 12)
>
> 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.

Gordon

-- 
Gordon Farquharson
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