From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B784C3A5A6 for ; Tue, 27 Aug 2019 10:38:32 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id C3CD2204EC for ; Tue, 27 Aug 2019 10:38:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C3CD2204EC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 190B16B0005; Tue, 27 Aug 2019 06:38:31 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 141266B0006; Tue, 27 Aug 2019 06:38:31 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0303C6B0007; Tue, 27 Aug 2019 06:38:31 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0182.hostedemail.com [216.40.44.182]) by kanga.kvack.org (Postfix) with ESMTP id D895B6B0005 for ; Tue, 27 Aug 2019 06:38:30 -0400 (EDT) Received: from smtpin18.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id 86F062C1E for ; Tue, 27 Aug 2019 10:38:30 +0000 (UTC) X-FDA: 75867858780.18.pump32_2d21a9f85613f X-HE-Tag: pump32_2d21a9f85613f X-Filterd-Recvd-Size: 2095 Received: from mx1.suse.de (mx2.suse.de [195.135.220.15]) by imf33.hostedemail.com (Postfix) with ESMTP for ; Tue, 27 Aug 2019 10:38:30 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 56FC8AF2C; Tue, 27 Aug 2019 10:38:28 +0000 (UTC) Date: Tue, 27 Aug 2019 12:38:27 +0200 From: Michal Hocko To: Tetsuo Handa Cc: Edward Chron , Andrew Morton , Roman Gushchin , Johannes Weiner , David Rientjes , Shakeel Butt , linux-mm@kvack.org, linux-kernel@vger.kernel.org, colona@arista.com Subject: Re: [PATCH 00/10] OOM Debug print selection and additional information Message-ID: <20190827103827.GV7538@dhcp22.suse.cz> References: <20190826193638.6638-1-echron@arista.com> <20190827071523.GR7538@dhcp22.suse.cz> <5768394f-1511-5b00-f715-c0c5446a2d2a@i-love.sakura.ne.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5768394f-1511-5b00-f715-c0c5446a2d2a@i-love.sakura.ne.jp> User-Agent: Mutt/1.10.1 (2018-07-13) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue 27-08-19 19:10:18, Tetsuo Handa wrote: > On 2019/08/27 16:15, Michal Hocko wrote: > > All that being said, I do not think this is something we want to merge > > without a really _strong_ usecase to back it. > > Like the sender's domain "arista.com" suggests, some of information is > geared towards networking devices, and ability to report OOM information > in a way suitable for automatic recording/analyzing (e.g. without using > shell prompt, let alone manually typing SysRq commands) would be convenient > for unattended devices. Why cannot the remote end of the logging identify the host. It has to connect somewhere anyway, right? I also do assume that a log collector already does store each log with host id of some form. -- Michal Hocko SUSE Labs