linux-kernel - Re: [PATCH] Fix race between oom kill and task exit

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Message-ID: <alpine.DEB.2.02.1312051531330.7717@chino.kir.corp.google.com>
Date:	Thu, 5 Dec 2013 15:35:30 -0800 (PST)
From:	David Rientjes <rientjes@...gle.com>
To:	Oleg Nesterov <oleg@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>
cc:	Michal Hocko <mhocko@...e.cz>, William Dauchy <wdauchy@...il.com>,
	Johannes Weiner <hannes@...xchg.org>,
	"Ma, Xindong" <xindong.ma@...el.com>,
	"rusty@...tcorp.com.au" <rusty@...tcorp.com.au>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Peter Zijlstra <peterz@...radead.org>,
	gregkh@...uxfoundation.org, "Tu, Xiaobing" <xiaobing.tu@...el.com>,
	azurIt <azurit@...ox.sk>, Sameer Nanda <snanda@...omium.org>
Subject: Re: [PATCH] Fix race between oom kill and task exit

On Thu, 5 Dec 2013, Oleg Nesterov wrote:

> > > OK, I am going to send the initial fixes today. This means (I hope)
> > > that we do not need this or Sameer's "[PATCH] mm, oom: Fix race when
> > > selecting process to kill".
> >
> > Your v2 series looks good and I suspect anybody trying them doesn't have
> > additional reports of the infinite loop?  Should they be marked for
> > stable?
> 
> Unlikely...
> 
> I think the patch from Sameer makes more sense for stable as a temporary
> (and obviously incomplete) fix.
> 

There's a problem because none of this is currently even in linux-next.  I 
think we could make a case for getting Sameer's patch at 
http://marc.info/?l=linux-kernel&m=138436313021133 to be merged for 
stable, but then we'd have to revert it in linux-next before merging your 
series at http://marc.info/?l=linux-kernel&m=138616217925981.  All of the 
issues you present in that series seem to be stable material, so why not 
just go ahead with your series and mark it for stable for 3.13?
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