linux-kernel - Re: Ok, explained.. (was Re: [PATCH] mm: fix page_mkclean

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Date:	Fri, 29 Dec 2006 13:31:27 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Linus Torvalds <torvalds@...l.org>
Cc:	Segher Boessenkool <segher@...nel.crashing.org>,
	David Miller <davem@...emloft.net>, nickpiggin@...oo.com.au,
	kenneth.w.chen@...el.com, guichaz@...oo.fr, hugh@...itas.com,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	ranma@...edrich.de, gordonfarquharson@...il.com,
	Andrew Morton <akpm@...l.org>, a.p.zijlstra@...llo.nl,
	tbm@...ius.com, arjan@...radead.org, andrei.popa@...eo.ro
Subject: Re: Ok, explained.. (was Re: [PATCH] mm: fix page_mkclean_one)


* Linus Torvalds <torvalds@...l.org> wrote:

> > Hmm? I'd love it if somebody else wrote the patch and tested it, 
> > because I'm getting sick and tired of this bug ;)
> 
> Who the hell am I kidding? I haven't been able to sleep right for the 
> last few days over this bug. It was really getting to me.
> 
> And putting on the thinking cap, there's actually a fairly simple an 
> nonintrusive patch. [...]

ok, your patch seems to fix the testcase here too on -rc2-rt.

[ Damn, i should have slept a bit more, that would have saved me a ~4
  hour debug and tracing session today to analyze your testcase, just to
  find your patch and your explanation on lkml, right after i sent my
  analysis and workaround patch ;-) At least now we know it from two
  independent tracing results that the suspect code is the same. ]

	Ingo
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