From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f198.google.com (mail-wr0-f198.google.com [209.85.128.198]) by kanga.kvack.org (Postfix) with ESMTP id 356726B0038 for ; Wed, 19 Apr 2017 07:13:50 -0400 (EDT) Received: by mail-wr0-f198.google.com with SMTP id o21so2101251wrb.9 for ; Wed, 19 Apr 2017 04:13:50 -0700 (PDT) Received: from mx1.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id w75si3052634wrc.239.2017.04.19.04.13.48 for (version=TLS1 cipher=AES128-SHA bits=128/128); Wed, 19 Apr 2017 04:13:48 -0700 (PDT) Date: Wed, 19 Apr 2017 13:13:43 +0200 From: Michal Hocko Subject: Re: [PATCH] mm,page_alloc: Split stall warning and failure warning. Message-ID: <20170419111342.GF29789@dhcp22.suse.cz> References: <1491825493-8859-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp> <20170410150308.c6e1a0213c32e6d587b33816@linux-foundation.org> <201704182049.BIE34837.FJOFOMFOQSLHVt@I-love.SAKURA.ne.jp> 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: David Rientjes Cc: Tetsuo Handa , akpm@linux-foundation.org, linux-mm@kvack.org, hannes@cmpxchg.org, sgruszka@redhat.com On Tue 18-04-17 14:47:32, David Rientjes wrote: [...] > I think the debug_guardpage_minorder() check makes sense for failed > allocations because we are essentially removing memory from the system for > debug, failed allocations as a result of low on memory or fragmentation > aren't concerning if we are removing memory from the system. I really fail to see how this is any different from booting with mem=$SIZE to reduce the amount of available memory. -- 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