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Date:	Thu, 20 Mar 2014 09:51:37 -0400
From:	Dave Jones <>
To:	Hugh Dickins <>
Cc:	Sasha Levin <>,
	Cyrill Gorcunov <>,
	Andrew Morton <>,
	Linux Kernel <>,, Linus Torvalds <>,
	Joonsoo Kim <>,
	Bob Liu <>,
	Konstantin Khlebnikov <>
Subject: Re: bad rss-counter message in 3.14rc5

On Wed, Mar 19, 2014 at 10:00:29PM -0700, Hugh Dickins wrote:

 > > This might be collateral damage from the swapops thing, I guess we won't know until
 > > that gets fixed, but I thought I'd mention that we might still have a problem here.
 > Yes, those Bad rss-counters could well be collateral damage from the
 > swapops BUG.  To which I believe I now have the answer: again untested,
 > but please give this a try...

This survived an overnight run. No swapops bug, and no bad RSS. Good job :)

 > (It's worth saying, by the way, that these bugs are not a consequence
 > of recent changes at all, they've been there for ages; but trinity has
 > just got better at taunting remap_file_pages and the rest of mm...)

Indeed. I hope to lift the covers on more stuff like this (and hopefully
get it done in a more reproducable manner).  A lot of the stuff trinity
is doing with VM syscalls is still very naive.


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