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=-5.5 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, URIBL_BLOCKED,USER_AGENT_MUTT 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 2DD83C67839 for ; Thu, 13 Dec 2018 12:41:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DE91D20870 for ; Thu, 13 Dec 2018 12:41:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="dn+kgZz8" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DE91D20870 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com 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 S1729237AbeLMMk7 (ORCPT ); Thu, 13 Dec 2018 07:40:59 -0500 Received: from mail-pg1-f193.google.com ([209.85.215.193]:36846 "EHLO mail-pg1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729117AbeLMMk7 (ORCPT ); Thu, 13 Dec 2018 07:40:59 -0500 Received: by mail-pg1-f193.google.com with SMTP id n2so1024199pgm.3 for ; Thu, 13 Dec 2018 04:40:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:date:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=l9lBXaRBoDvXn0j5hqFOxEDzTKNWUEI+JAXuXjli6Ao=; b=dn+kgZz8GiH8eJtkfL0gy9tukG9H+m4GS4FZou/h+UY9eBv6ilZJB8LS614NG4N1Hc XfHbPxMRrdZZ+fAamQiXFu+QW6uRQOY/JEmJvlO35rnP5Z7s1Eu7uy0jg5/5aOCa1q5K BR6JoFiJksUphFQfiafaJD81OZzouZ69DHbZO8QlCwqarRQZ4Jw3fMMxEvtF7+mhLAmD lweD56g6TFRCUXhzMLWR04fossmpxisKMcw1hNcrdW6CraKaEET3fIbmc2WR+ku5n8Yz DedPJfxIRm75SU6oKFJFwa2fplKpA+9HypgmjEHVktLBpy11haOiPLIVUGyfjZHl0bYR sE9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:date:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=l9lBXaRBoDvXn0j5hqFOxEDzTKNWUEI+JAXuXjli6Ao=; b=OVv6pvzkfgYG7KbEWd5hRAvQzzv6CJ/cSPVgElLjiXZDy9wHvTG+zx6osk8zIWz+Gl MsSGG3ifncZabYLioH9IFpyofPQkTkllNaA1wJB+jQJZ6WK3D3bE/QM/H98vmWB7YEcn GdkE58k510FZv73KSG+QuweQ1TWOLuKfU8q9/eQK39pyB3JqKv6mXrGi74bikG6uyt+T d8egaNi6CDEWI6KjOKTTtldvRxhHEyaw/OCH6VoxJb7xusikWs63dvFN/0TbCVrBvNCb bvxFYLEgYMZ9GyPZy4mDvK/UpmeWhrfdHAUuXceAP8o27f3kRT+i+RHzoC5fUkOWNl54 5H4Q== X-Gm-Message-State: AA+aEWZkhjfu1L3Ktqj8QxZxJshHuutaFzHbtuCDCdjx3E0pre+7/5Q8 bZPuvcKp9BN6IuVwF+DjJik= X-Google-Smtp-Source: AFSGD/W6TmcQjj3jQBN1A+iCoE6sXnNjqerAYS/1c+xIunbql/5lZIiofNzX83N5f4U9hxKOImrjMQ== X-Received: by 2002:a63:e001:: with SMTP id e1mr21898149pgh.39.1544704858570; Thu, 13 Dec 2018 04:40:58 -0800 (PST) Received: from localhost ([121.137.63.184]) by smtp.gmail.com with ESMTPSA id j21sm2734328pfn.175.2018.12.13.04.40.57 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 13 Dec 2018 04:40:57 -0800 (PST) From: Sergey Senozhatsky X-Google-Original-From: Sergey Senozhatsky Date: Thu, 13 Dec 2018 21:40:54 +0900 To: "Liu, Chuansheng" Cc: Petr Mladek , Tetsuo Handa , Sergey Senozhatsky , "akpm@linux-foundation.org" , "sergey.senozhatsky@gmail.com" , "rostedt@goodmis.org" , "dvyukov@google.com" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH V2] kernel/hung_task.c: Force console verbose before panic Message-ID: <20181213124054.GA3053@tigerII.localdomain> References: <27240C0AC20F114CBF8149A2696CBE4A6015B675@SHSMSX101.ccr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <27240C0AC20F114CBF8149A2696CBE4A6015B675@SHSMSX101.ccr.corp.intel.com> User-Agent: Mutt/1.11.1 (2018-12-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On (12/13/18 01:51), Liu, Chuansheng wrote: > V1: console_verbose() is used instead of ignore_loglevel, > suggested by Sergey. > Tweak the function check_hung_task() suggested by > Tetsuo to make code more readable. > > V2: Petr suggests to make 2 patches: > One is addressing console_verbose() only, which is > this patch's aim. > The other is about forcing sched_show_task() during > panic, which needs more discussion yet. > > Cc: Sergey Senozhatsky > Cc: Tetsuo Handa > Cc: Petr Mladek > Signed-off-by: Chuansheng Liu Reviewed-by: Sergey Senozhatsky -ss