Date: Tue, 21 Aug 2012 12:57:04 +0200
From: Michal Hocko <mhocko@suse.cz>
To: Glauber Costa <glommer@parallels.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, cgroups@vger.kernel.org,
        devel@openvz.org, Johannes Weiner <hannes@cmpxchg.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        kamezawa.hiroyu@jp.fujitsu.com, Christoph Lameter <cl@linux.com>,
        David Rientjes <rientjes@google.com>,
        Pekka Enberg <penberg@kernel.org>,
        Pekka Enberg <penberg@cs.helsinki.fi>,
        Suleiman Souhlal <suleiman@google.com>
Subject: Re: [PATCH v2 11/11] protect architectures where THREAD_SIZE >=
 PAGE_SIZE against fork bombs
Message-ID: <20120821105704.GF19797@dhcp22.suse.cz>
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 <20120821093513.GD19797@dhcp22.suse.cz>
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On Tue 21-08-12 13:40:45, Glauber Costa wrote:
> On 08/21/2012 01:35 PM, Michal Hocko wrote:
[...]
> > I am asking because this should trigger memcg-oom
> > but that one will usually pick up something else than the fork bomb
> > which would have a small memory footprint. But that needs to be handled
> > on the oom level obviously.
> > 
> Sure, but keep in mind that the main protection is against tasks *not*
> in this memcg.

Yes and that's is good step forward. I just wanted to mention that we
still have the problem inside the subhierarchy. The changelog was not
specific enough.
-- 
Michal Hocko
SUSE Labs
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