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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, 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 3EF8EC43331 for ; Thu, 26 Mar 2020 14:04:55 +0000 (UTC) Received: from isis.lip6.fr (isis.lip6.fr [132.227.60.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BE7DF206F6 for ; Thu, 26 Mar 2020 14:04:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BE7DF206F6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.cz Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=cocci-bounces@systeme.lip6.fr Received: from systeme.lip6.fr (systeme.lip6.fr [132.227.104.7]) by isis.lip6.fr (8.15.2/8.15.2) with ESMTP id 02QE4Qvi015203; Thu, 26 Mar 2020 15:04:26 +0100 (CET) Received: from systeme.lip6.fr (systeme.lip6.fr [127.0.0.1]) by systeme.lip6.fr (Postfix) with ESMTP id 7B241780C; Thu, 26 Mar 2020 15:04:26 +0100 (CET) Received: from isis.lip6.fr (isis.lip6.fr [132.227.60.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by systeme.lip6.fr (Postfix) with ESMTPS id 7C3AF66CB for ; Wed, 25 Mar 2020 10:33:18 +0100 (CET) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by isis.lip6.fr (8.15.2/8.15.2) with ESMTPS id 02P9XHoG000231 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 25 Mar 2020 10:33:18 +0100 (CET) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 7C6CEAAFD; Wed, 25 Mar 2020 09:33:15 +0000 (UTC) To: Kees Cook , "Guilherme G. Piccoli" References: <20200323214618.28429-1-gpiccoli@canonical.com> <202003241119.A666E1C694@keescook> From: Vlastimil Babka Message-ID: <9eab7f80-bad4-bcb1-7ec7-b6b90839b13a@suse.cz> Date: Wed, 25 Mar 2020 10:33:13 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <202003241119.A666E1C694@keescook> Content-Language: en-US X-Greylist: Sender IP whitelisted, Sender e-mail whitelisted, not delayed by milter-greylist-4.4.3 (isis.lip6.fr [132.227.60.2]); Thu, 26 Mar 2020 15:04:26 +0100 (CET) X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.4.3 (isis.lip6.fr [132.227.60.2]); Wed, 25 Mar 2020 10:33:18 +0100 (CET) X-Scanned-By: MIMEDefang 2.78 on 132.227.60.2 X-Scanned-By: MIMEDefang 2.78 on 132.227.60.2 X-Mailman-Approved-At: Thu, 26 Mar 2020 15:04:25 +0100 Cc: randy Dunlap , linux-doc@vger.kernel.org, penguin-kernel@I-love.SAKURA.ne.jp, linux-api@vger.kernel.org, kernel@gpiccoli.net, linux-kernel@vger.kernel.org, cocci@systeme.lip6.fr, linux-fsdevel@vger.kernel.org, tglx@linutronix.de, yzaikin@google.com, akpm@linux-foundation.org Subject: Re: [Cocci] [PATCH V2] kernel/hung_task.c: Introduce sysctl to print all traces when a hung task is detected X-BeenThere: cocci@systeme.lip6.fr X-Mailman-Version: 2.1.13 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: cocci-bounces@systeme.lip6.fr Errors-To: cocci-bounces@systeme.lip6.fr On 3/24/20 7:20 PM, Kees Cook wrote: > On Tue, Mar 24, 2020 at 09:45:40AM -0300, Guilherme G. Piccoli wrote: >> Thanks Randy and Vlastimil for the comments. I really liked your >> approach Vlastimil, I agree that we have no reason to not have a generic >> sysctl setting via cmdline mechanism - I'll rework this patch removing >> the kernel parameter (same for other patch I just submitted). > > I've been thinking we'll likely want to have a big patch series that > removes all the old "duplicate" boot params and adds some kind of > "alias" mechanism. > > Vlastimil, have you happened to keep a list of other "redundant" boot > params you've noticed in the kernel? I bet there are a lot. :) Well, I found about 4 that mentioned sysctl in Documentation/admin-guide/kernel-parameters.txt I suspect there will be more, but won't be trivial to identify them. _______________________________________________ Cocci mailing list Cocci@systeme.lip6.fr https://systeme.lip6.fr/mailman/listinfo/cocci