From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f71.google.com (mail-wm0-f71.google.com [74.125.82.71]) by kanga.kvack.org (Postfix) with ESMTP id 9A3706B02EE for ; Fri, 12 May 2017 01:56:57 -0400 (EDT) Received: by mail-wm0-f71.google.com with SMTP id w79so4758728wme.7 for ; Thu, 11 May 2017 22:56:57 -0700 (PDT) Received: from mx1.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id o35si2447676edb.318.2017.05.11.22.56.56 for (version=TLS1 cipher=AES128-SHA bits=128/128); Thu, 11 May 2017 22:56:56 -0700 (PDT) Date: Fri, 12 May 2017 07:56:55 +0200 From: Michal Hocko Subject: Re: Kernel problem Message-ID: <20170512055655.GA6803@dhcp22.suse.cz> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Randy Dunlap Cc: Frank Vosberg , "linux-mm@kvack.org" On Thu 11-05-17 09:57:25, Randy Dunlap wrote: [...] > I'll let someone else comment on the actual warning message: > Creating hierarchies with use_hierarchy==0 (flat hierarchy) is considered deprecated. If you believe that your setup is correct, we kindly ask you to contact linux-mm@kvack.org and let us know Well, this warning just says that using not hierarchical memory cgroup hierarchy is a bad idea and this behavior will not be supported for ever (or for v2 cgroup for that matter). It should warn users who are using old kernels to either change their configuration or complain that they have a valid usecase for such a configuration so that we can think of an alternative approach. From the original email it is not clear to me whether this configuration is intentional or not, though. -- 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