RE: [PATCH] mm: fix page_mkclean_one

From: Chen, Kenneth W
Date: Thu Dec 28 2006 - 00:56:03 EST

Linus Torvalds wrote on Wednesday, December 27, 2006 7:05 PM
> On Wed, 27 Dec 2006, David Miller wrote:
> > >
> > > I still don't see _why_, though. But maybe smarter people than me can see
> > > it..
> >
> > FWIW this program definitely triggers the bug for me.
> Ok, now that I have something simple to do repeatable stuff with, I can
> say what the pattern is.. It's not all that surprising, but it's still
> worth just stating for the record.

Running the test code, git bisect points its finger at this commit. Reverting
this commit on top of 2.6.20-rc2 doesn't trigger the bug from the test code.

edc79b2a46ed854595e40edcf3f8b37f9f14aa3f is first bad commit
commit edc79b2a46ed854595e40edcf3f8b37f9f14aa3f
Author: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Date: Mon Sep 25 23:30:58 2006 -0700

[PATCH] mm: balance dirty pages

Now that we can detect writers of shared mappings, throttle them. Avoids OOM
by surprise.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Hugh Dickins <hugh@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxx>
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