linux-kernel - Re: [patch 00/11] userspace out of memory handling

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Message-ID: <alpine.DEB.2.02.1403061254240.25499@chino.kir.corp.google.com>
Date:	Thu, 6 Mar 2014 12:55:43 -0800 (PST)
From:	David Rientjes <rientjes@...gle.com>
To:	Tejun Heo <tj@...nel.org>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...e.cz>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Pekka Enberg <penberg@...nel.org>,
	Mel Gorman <mgorman@...e.de>, Oleg Nesterov <oleg@...hat.com>,
	Rik van Riel <riel@...hat.com>,
	Jianguo Wu <wujianguo@...wei.com>,
	Tim Hockin <thockin@...gle.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, cgroups@...r.kernel.org,
	linux-doc@...r.kernel.org
Subject: Re: [patch 00/11] userspace out of memory handling

On Thu, 6 Mar 2014, Tejun Heo wrote:

> On Tue, Mar 04, 2014 at 07:58:38PM -0800, David Rientjes wrote:
> > This patchset implements userspace out of memory handling.
> > 
> > It is based on v3.14-rc5.  Individual patches will apply cleanly or you
> > may pull the entire series from
> > 
> > 	git://git.kernel.org/pub/scm/linux/kernel/git/rientjes/linux.git mm/oom
> > 
> > When the system or a memcg is oom, processes running on that system or
> > attached to that memcg cannot allocate memory.  It is impossible for a
> > process to reliably handle the oom condition from userspace.
> 
> ISTR the conclusion last time was nack on the whole approach.  What
> changed between then and now?  I can't detect any fundamental changes
> from the description.
> 

This includes system oom handling alongside memcg oom handling.  If you 
have specific objections, please let us know, thanks!
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