From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ee0-f52.google.com (mail-ee0-f52.google.com [74.125.83.52]) by kanga.kvack.org (Postfix) with ESMTP id C2BF26B0070 for ; Wed, 23 Apr 2014 02:07:33 -0400 (EDT) Received: by mail-ee0-f52.google.com with SMTP id e49so324958eek.39 for ; Tue, 22 Apr 2014 23:07:33 -0700 (PDT) Received: from BlackPearl.yuhu.biz (mail.bgservers.net. [85.14.7.126]) by mx.google.com with ESMTP id x47si1568479eel.43.2014.04.22.23.07.31 for ; Tue, 22 Apr 2014 23:07:31 -0700 (PDT) Message-ID: <535758A0.5000500@yuhu.biz> Date: Wed, 23 Apr 2014 09:07:28 +0300 From: Marian Marinov MIME-Version: 1.0 Subject: Re: Protection against container fork bombs [WAS: Re: memcg with kmem limit doesn't recover after disk i/o causes limit to be hit] References: <20140416154650.GA3034@alpha.arachsys.com> <20140418155939.GE4523@dhcp22.suse.cz> <5351679F.5040908@parallels.com> <20140420142830.GC22077@alpha.arachsys.com> <20140422143943.20609800@oracle.com> <20140422200531.GA19334@alpha.arachsys.com> In-Reply-To: <20140422200531.GA19334@alpha.arachsys.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Richard Davies , Dwight Engen Cc: Vladimir Davydov , Frederic Weisbecker , David Rientjes , Glauber Costa , Tejun Heo , Max Kellermann , Johannes Weiner , William Dauchy , Tim Hockin , Michal Hocko , Daniel Walsh , Daniel Berrange , cgroups@vger.kernel.org, containers@lists.linux-foundation.org, linux-mm@kvack.org On 04/22/2014 11:05 PM, Richard Davies wrote: > Dwight Engen wrote: >> Richard Davies wrote: >>> Vladimir Davydov wrote: >>>> In short, kmem limiting for memory cgroups is currently broken. Do >>>> not use it. We are working on making it usable though. > ... >>> What is the best mechanism available today, until kmem limits mature? >>> >>> RLIMIT_NPROC exists but is per-user, not per-container. >>> >>> Perhaps there is an up-to-date task counter patchset or similar? >> >> I updated Frederic's task counter patches and included Max Kellermann's >> fork limiter here: >> >> http://thread.gmane.org/gmane.linux.kernel.containers/27212 >> >> I can send you a more recent patchset (against 3.13.10) if you would >> find it useful. > > Yes please, I would be interested in that. Ideally even against 3.14.1 if > you have that too. Dwight, do you have these patches in any public repo? I would like to test them also. Marian > > Thanks, > > Richard. > -- > To unsubscribe from this list: send the line "unsubscribe cgroups" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- 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