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
Date: Tue, 21 Aug 2012 12:57:04 +0200 [thread overview]
Message-ID: <20120821105704.GF19797@dhcp22.suse.cz> (raw)
In-Reply-To: <5033579D.5000203@parallels.com>
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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next prev parent reply other threads:[~2012-08-21 10:57 UTC|newest]
Thread overview: 135+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-09 13:01 [PATCH v2 00/11] Request for Inclusion: kmem controller for memcg Glauber Costa
2012-08-09 13:01 ` [PATCH v2 01/11] memcg: Make it possible to use the stock for more than one page Glauber Costa
2012-08-10 15:12 ` Michal Hocko
2012-08-09 13:01 ` [PATCH v2 02/11] memcg: Reclaim when more than one page needed Glauber Costa
2012-08-10 15:42 ` Michal Hocko
2012-08-10 16:49 ` Kamezawa Hiroyuki
2012-08-10 17:28 ` Michal Hocko
2012-08-10 17:56 ` Kamezawa Hiroyuki
2012-08-10 17:30 ` Michal Hocko
2012-08-10 18:52 ` Michal Hocko
2012-08-10 18:54 ` Michal Hocko
2012-08-13 8:05 ` Glauber Costa
2012-08-13 13:10 ` Michal Hocko
2012-08-09 13:01 ` [PATCH v2 03/11] memcg: change defines to an enum Glauber Costa
2012-08-10 15:43 ` Michal Hocko
2012-08-09 13:01 ` [PATCH v2 04/11] kmem accounting basic infrastructure Glauber Costa
2012-08-10 17:02 ` Kamezawa Hiroyuki
2012-08-13 8:36 ` Glauber Costa
2012-08-17 2:38 ` Kamezawa Hiroyuki
2012-08-14 16:21 ` Michal Hocko
2012-08-15 9:33 ` Glauber Costa
2012-08-15 11:12 ` James Bottomley
2012-08-15 12:55 ` Michal Hocko
2012-08-15 13:29 ` James Bottomley
2012-08-15 12:39 ` Michal Hocko
2012-08-15 12:53 ` Glauber Costa
2012-08-15 13:02 ` Michal Hocko
2012-08-15 13:04 ` Glauber Costa
2012-08-15 13:26 ` Michal Hocko
2012-08-15 13:31 ` Glauber Costa
2012-08-15 14:10 ` Michal Hocko
2012-08-15 14:11 ` Glauber Costa
2012-08-15 14:47 ` Christoph Lameter
2012-08-15 15:11 ` Glauber Costa
2012-08-15 15:34 ` Christoph Lameter
2012-08-15 15:35 ` Glauber Costa
2012-08-15 17:26 ` Christoph Lameter
2012-08-15 18:11 ` Ying Han
2012-08-15 18:25 ` Christoph Lameter
2012-08-15 19:22 ` Glauber Costa
2012-08-15 18:07 ` Ying Han
2012-08-15 15:19 ` Greg Thelen
2012-08-15 15:36 ` Christoph Lameter
2012-08-15 18:01 ` Ying Han
2012-08-15 18:00 ` Glauber Costa
2012-08-15 19:50 ` Ying Han
2012-08-16 15:25 ` Michal Hocko
2012-08-17 5:58 ` Ying Han
2012-08-09 13:01 ` [PATCH v2 05/11] Add a __GFP_KMEMCG flag Glauber Costa
2012-08-10 17:07 ` Kamezawa Hiroyuki
2012-08-09 13:01 ` [PATCH v2 06/11] memcg: kmem controller infrastructure Glauber Costa
2012-08-10 17:27 ` Kamezawa Hiroyuki
2012-08-13 8:28 ` Glauber Costa
2012-08-14 18:58 ` Greg Thelen
2012-08-15 9:18 ` Glauber Costa
2012-08-15 16:38 ` Greg Thelen
2012-08-15 17:00 ` Glauber Costa
2012-08-15 17:12 ` Greg Thelen
2012-08-15 19:31 ` Glauber Costa
2012-08-16 3:37 ` Greg Thelen
2012-08-16 7:47 ` Glauber Costa
2012-08-20 13:36 ` Kamezawa Hiroyuki
2012-08-20 15:29 ` Glauber Costa
2012-08-17 2:36 ` Kamezawa Hiroyuki
2012-08-17 7:04 ` Glauber Costa
2012-08-14 11:00 ` Glauber Costa
2012-08-11 5:11 ` Greg Thelen
2012-08-13 8:07 ` Glauber Costa
2012-08-13 9:59 ` Glauber Costa
2012-08-13 21:21 ` Greg Thelen
2012-08-14 17:25 ` Michal Hocko
2012-08-15 9:42 ` Glauber Costa
2012-08-15 10:44 ` Glauber Costa
2012-08-15 13:09 ` Michal Hocko
2012-08-15 14:01 ` Glauber Costa
2012-08-15 14:23 ` Michal Hocko
2012-08-15 14:27 ` Glauber Costa
2012-08-16 9:53 ` Michal Hocko
2012-08-16 9:57 ` Glauber Costa
2012-08-16 15:05 ` Michal Hocko
2012-08-16 15:22 ` Glauber Costa
2012-08-21 21:50 ` Greg Thelen
2012-08-22 8:35 ` Glauber Costa
2012-08-23 0:07 ` Greg Thelen
2012-08-23 7:51 ` Glauber Costa
2012-08-09 13:01 ` [PATCH v2 07/11] mm: Allocate kernel pages to the right memcg Glauber Costa
2012-08-09 16:33 ` Greg Thelen
2012-08-09 16:42 ` Glauber Costa
2012-08-10 17:33 ` Kamezawa Hiroyuki
2012-08-13 8:03 ` Glauber Costa
2012-08-13 8:57 ` Mel Gorman
2012-08-10 17:36 ` Greg Thelen
2012-08-13 8:02 ` Glauber Costa
2012-08-14 15:16 ` Mel Gorman
2012-08-15 9:08 ` Glauber Costa
2012-08-15 13:22 ` Mel Gorman
2012-08-15 13:39 ` Glauber Costa
2012-08-15 13:51 ` Glauber Costa
2012-08-15 9:24 ` Michal Hocko
2012-08-09 13:01 ` [PATCH v2 08/11] memcg: disable kmem code when not in use Glauber Costa
2012-08-17 7:02 ` Michal Hocko
2012-08-17 7:01 ` Glauber Costa
2012-08-17 8:04 ` Michal Hocko
2012-08-09 13:01 ` [PATCH v2 09/11] memcg: propagate kmem limiting information to children Glauber Costa
2012-08-10 17:51 ` Kamezawa Hiroyuki
2012-08-13 8:01 ` Glauber Costa
2012-08-17 9:00 ` Michal Hocko
2012-08-17 9:15 ` Glauber Costa
2012-08-17 9:35 ` Michal Hocko
2012-08-17 10:07 ` Glauber Costa
2012-08-17 10:35 ` Michal Hocko
2012-08-17 10:36 ` Glauber Costa
2012-08-21 7:54 ` Michal Hocko
2012-08-21 8:35 ` Michal Hocko
2012-08-21 9:17 ` Glauber Costa
2012-08-21 9:22 ` Glauber Costa
2012-08-21 10:00 ` Michal Hocko
2012-08-21 10:01 ` Glauber Costa
2012-08-22 1:09 ` Greg Thelen
2012-08-22 8:22 ` Glauber Costa
2012-08-22 23:23 ` Greg Thelen
2012-08-23 7:55 ` Glauber Costa
2012-08-24 5:06 ` Greg Thelen
2012-08-24 5:23 ` Glauber Costa
2012-08-17 10:39 ` Glauber Costa
2012-08-09 13:01 ` [PATCH v2 10/11] memcg: allow a memcg with kmem charges to be destructed Glauber Costa
2012-08-21 8:22 ` Michal Hocko
2012-08-22 8:36 ` Glauber Costa
2012-08-09 13:01 ` [PATCH v2 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs Glauber Costa
2012-08-10 17:54 ` Kamezawa Hiroyuki
2012-08-21 9:35 ` Michal Hocko
2012-08-21 9:40 ` Glauber Costa
2012-08-21 10:57 ` Michal Hocko [this message]
2012-08-17 21:37 ` [PATCH v2 00/11] Request for Inclusion: kmem controller for memcg Ying Han
2012-08-20 7:51 ` Glauber Costa
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