From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl0-f71.google.com (mail-pl0-f71.google.com [209.85.160.71]) by kanga.kvack.org (Postfix) with ESMTP id C7F516B0003 for ; Thu, 5 Apr 2018 10:34:25 -0400 (EDT) Received: by mail-pl0-f71.google.com with SMTP id m6-v6so19198257pln.8 for ; Thu, 05 Apr 2018 07:34:25 -0700 (PDT) Received: from mail.kernel.org (mail.kernel.org. [198.145.29.99]) by mx.google.com with ESMTPS id 13si6158309pfm.246.2018.04.05.07.34.24 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 05 Apr 2018 07:34:24 -0700 (PDT) Date: Thu, 5 Apr 2018 10:34:21 -0400 From: Steven Rostedt Subject: Re: [PATCH v1] kernel/trace:check the val against the available mem Message-ID: <20180405103421.60bcf53c@gandalf.local.home> In-Reply-To: <20180405142749.GL6312@dhcp22.suse.cz> References: <20180403093245.43e7e77c@gandalf.local.home> <20180403135607.GC5501@dhcp22.suse.cz> <20180404062340.GD6312@dhcp22.suse.cz> <20180404101149.08f6f881@gandalf.local.home> <20180404142329.GI6312@dhcp22.suse.cz> <20180404114730.65118279@gandalf.local.home> <20180405025841.GA9301@bombadil.infradead.org> <20180405142258.GA28128@bombadil.infradead.org> <20180405142749.GL6312@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: Matthew Wilcox , Joel Fernandes , Zhaoyang Huang , Ingo Molnar , LKML , kernel-patch-test@lists.linaro.org, Andrew Morton , "open list:MEMORY MANAGEMENT" , Vlastimil Babka On Thu, 5 Apr 2018 16:27:49 +0200 Michal Hocko wrote: > > I understand you don't want GFP_NORETRY. But why is it more important for > > this allocation to succeed than other normal GFP_KERNEL allocations? > > I guess they simply want a failure rather than OOM even when they can > shoot themselves into head by using oom_origin. It is still quite ugly > to see OOM report... Exactly! -- Steve