linux-kernel - Re: bad rss-counter message in 3.14rc5

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Date:	Thu, 20 Mar 2014 21:46:51 -0700 (PDT)
From:	Hugh Dickins <hughd@...gle.com>
To:	Sasha Levin <sasha.levin@...cle.com>, Dave Jones <davej@...hat.com>
cc:	Cyrill Gorcunov <gorcunov@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	linux-mm@...ck.org, Linus Torvalds <torvalds@...ux-foundation.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Bob Liu <bob.liu@...cle.com>,
	Konstantin Khlebnikov <koct9i@...il.com>
Subject: Re: bad rss-counter message in 3.14rc5

On Thu, 20 Mar 2014, Sasha Levin wrote:
> On 03/20/2014 09:51 AM, Dave Jones wrote:
> > 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:)
> 
> Same here, swapops bug is gone!

That was welcome news, thanks guys.  I notice it has not (yet) magically
appeared in Linus's public tree like the rss one did: so to be on the
safe side, I'll just repost it now, with your Reported-and-tested-bys,
otherwise unchanged.

Hugh
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