From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx169.postini.com [74.125.245.169]) by kanga.kvack.org (Postfix) with SMTP id AC3236B005D for ; Tue, 21 Aug 2012 06:57:10 -0400 (EDT) Date: Tue, 21 Aug 2012 12:57:04 +0200 From: Michal Hocko Subject: Re: [PATCH v2 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs Message-ID: <20120821105704.GF19797@dhcp22.suse.cz> References: <1344517279-30646-1-git-send-email-glommer@parallels.com> <1344517279-30646-12-git-send-email-glommer@parallels.com> <20120821093513.GD19797@dhcp22.suse.cz> <5033579D.5000203@parallels.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5033579D.5000203@parallels.com> Sender: owner-linux-mm@kvack.org List-ID: To: Glauber Costa Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, cgroups@vger.kernel.org, devel@openvz.org, Johannes Weiner , Andrew Morton , kamezawa.hiroyu@jp.fujitsu.com, Christoph Lameter , David Rientjes , Pekka Enberg , Pekka Enberg , Suleiman Souhlal 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org