From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yk0-f170.google.com (mail-yk0-f170.google.com [209.85.160.170]) by kanga.kvack.org (Postfix) with ESMTP id 00D366B0254 for ; Fri, 28 Aug 2015 18:06:41 -0400 (EDT) Received: by ykek5 with SMTP id k5so15379957yke.3 for ; Fri, 28 Aug 2015 15:06:40 -0700 (PDT) Received: from mail-yk0-x232.google.com (mail-yk0-x232.google.com. [2607:f8b0:4002:c07::232]) by mx.google.com with ESMTPS id k68si4951259ywg.213.2015.08.28.15.06.40 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 28 Aug 2015 15:06:40 -0700 (PDT) Received: by ykdz80 with SMTP id z80so29232887ykd.0 for ; Fri, 28 Aug 2015 15:06:40 -0700 (PDT) Date: Fri, 28 Aug 2015 18:06:32 -0400 From: Tejun Heo Subject: Re: [PATCH 3/4] memcg: punt high overage reclaim to return-to-userland path Message-ID: <20150828220632.GF11089@htj.dyndns.org> References: <1440775530-18630-1-git-send-email-tj@kernel.org> <1440775530-18630-4-git-send-email-tj@kernel.org> <20150828163611.GI9610@esperanza> <20150828164819.GL26785@mtj.duckdns.org> <20150828203231.GL9610@esperanza> <20150828204432.GA11089@htj.dyndns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150828204432.GA11089@htj.dyndns.org> Sender: owner-linux-mm@kvack.org List-ID: To: Vladimir Davydov Cc: Andrew Morton , hannes@cmpxchg.org, mhocko@kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org, kernel-team@fb.com, Joonsoo Kim , Christoph Lameter , David Rientjes On Fri, Aug 28, 2015 at 04:44:32PM -0400, Tejun Heo wrote: > Ah, cool, so it was a bug from slub. Punting to return path still has > some niceties but if we can't consistently get rid of stack > consumption it's not that attractive. Let's revisit it later together > with hard limit reclaim. So, I can't check right now but I'm pretty sure I was using SLAB on my test config, so this issue may exist there too. Thanks. -- tejun -- 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