From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751469AbeDEOe1 (ORCPT ); Thu, 5 Apr 2018 10:34:27 -0400 Received: from mail.kernel.org ([198.145.29.99]:37396 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751179AbeDEOeY (ORCPT ); Thu, 5 Apr 2018 10:34:24 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7D50621720 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=rostedt@goodmis.org Date: Thu, 5 Apr 2018 10:34:21 -0400 From: Steven Rostedt 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 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> X-Mailer: Claws Mail 3.16.0 (GTK+ 2.24.31; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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