From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH 3/4] memcg: punt high overage reclaim to return-to-userland path Date: Fri, 28 Aug 2015 18:06:32 -0400 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 Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; bh=kTMhZsylcSzFOnPkeWNmWY9UjSty48ruLCFfm/eoSb4=; b=lTACgLMBvx2uY+CWEd//HTLgP4OMGJHbuR5jakQftGnYCfwyxQxgMI3bsNKcLcWO1S m7yFcTLc+HnYy2eGV/FcCgEEIXRjV/UGoQAfysYhqxI7r09MEIIv3DyWysaCdHfiCZ/L yIBAq+C4nt4ugDB7tyMvqRPo82e847eLVsNt3+5ycepZeylJDukr8BzUEn4Tu9iGJMGL JI5kXcffvHCk/FjvPfiy10X3Mckl9rnCxdpCH/my9fhvBDWHDkEFDv1w0nkM27qcopmo 8wcEqCcQZVmTnz1HV+ALL5S6ng2Bjs5INNJ+ABmLQBqjFdUsfXRjlJeBweHFTW9cLuXb N5ZQ== Content-Disposition: inline In-Reply-To: <20150828204432.GA11089@htj.dyndns.org> Sender: owner-linux-mm@kvack.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit 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