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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 34F0FC43143 for ; Mon, 1 Oct 2018 18:06:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CFEC1208AE for ; Mon, 1 Oct 2018 18:06:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CFEC1208AE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726330AbeJBApH (ORCPT ); Mon, 1 Oct 2018 20:45:07 -0400 Received: from mail.kernel.org ([198.145.29.99]:43366 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725958AbeJBApH (ORCPT ); Mon, 1 Oct 2018 20:45:07 -0400 Received: from gandalf.local.home (cpe-66-24-56-78.stny.res.rr.com [66.24.56.78]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 930192089A; Mon, 1 Oct 2018 18:06:07 +0000 (UTC) Date: Mon, 1 Oct 2018 14:06:06 -0400 From: Steven Rostedt To: Sergey Senozhatsky Cc: Tetsuo Handa , Sergey Senozhatsky , Petr Mladek , Alexander Potapenko , Dmitriy Vyukov , kbuild test robot , syzkaller , LKML , Linus Torvalds , Andrew Morton Subject: Re: [PATCH] printk: inject caller information into the body of message Message-ID: <20181001140606.6fa35061@gandalf.local.home> In-Reply-To: <20180929111317.GB1392@tigerII.localdomain> References: <20180913122625.6ieyexpcmlc5z2it@pathway.suse.cz> <20180913142802.GB517@tigerII.localdomain> <20180914065728.GA515@jagdpanzerIV> <49d22738-17ad-410a-be0a-d27d76ba9f37@i-love.sakura.ne.jp> <20180914115028.GB20572@tigerII.localdomain> <20180914122217.GA518@tigerII.localdomain> <20180928085648.GC1160@jagdpanzerIV> <802130a3-b8c1-3973-933b-d6dc5ff2930d@i-love.sakura.ne.jp> <20180929111317.GB1392@tigerII.localdomain> X-Mailer: Claws Mail 3.16.0 (GTK+ 2.24.32; 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 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 29 Sep 2018 20:13:17 +0900 Sergey Senozhatsky wrote: > On (09/28/18 20:21), Tetsuo Handa wrote: > > On 2018/09/28 17:56, Sergey Senozhatsky wrote: > > > The good thing about cont buffer is that we flush it on panic. E.g. > > > core/arch early boot stage can do: > > > > > > pr_cont("going to call early_init_foo()..."); > > > early_init_foo(); > > > pr_cont("OK\n"); > > > > > > > Is printing > > > > going to call early_init_foo()...OK > > > > in one line so critically important? > Yes. My testing infrastructure tests for this on boot up for the ftrace self tests. -- Steve