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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, 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 432B7C433E6 for ; Sat, 13 Feb 2021 12:38:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 13A6061477 for ; Sat, 13 Feb 2021 12:38:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229647AbhBMMii (ORCPT ); Sat, 13 Feb 2021 07:38:38 -0500 Received: from wtarreau.pck.nerim.net ([62.212.114.60]:49786 "EHLO 1wt.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229531AbhBMMie (ORCPT ); Sat, 13 Feb 2021 07:38:34 -0500 Received: (from willy@localhost) by pcw.home.local (8.15.2/8.15.2/Submit) id 11DCaw06003536; Sat, 13 Feb 2021 13:36:58 +0100 Date: Sat, 13 Feb 2021 13:36:58 +0100 From: Willy Tarreau To: "Paul E. McKenney" Cc: Ingo Molnar , akiyks@gmail.com, bigeasy@linutronix.de, elver@google.com, frederic@kernel.org, joel@joelfernandes.org, julia@ni.com, mchehab+huawei@kernel.org, neeraju@codeaurora.org, paul.gortmaker@windriver.com, peterz@infradead.org, qiang.zhang@windriver.com, swood@redhat.com, urezki@gmail.com, wangqing@vivo.com, linux-kernel@vger.kernel.org, rcu@vger.kernel.org, kernel-team@fb.com, tglx@linutronix.de Subject: Re: [GIT PULL tip/core/rcu] RCU, LKMM, and KCSAN commits for v5.12 Message-ID: <20210213123658.GA3500@1wt.eu> References: <20210128010437.GA32221@paulmck-ThinkPad-P72> <20210212123109.GB2185387@gmail.com> <20210212150705.GO2743@paulmck-ThinkPad-P72> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210212150705.GO2743@paulmck-ThinkPad-P72> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Paul, On Fri, Feb 12, 2021 at 07:07:05AM -0800, Paul E. McKenney wrote: > Thank you, Ingo! In the future, I will group nolibc with RCU. But there > has to be something other than RCU that needs it. I will take a look. ;-) All my kernels boot using a "preinit" that is built with nolibc and integrated into the initramfs. Historically it used to just create /dev entries and mount the rootfs, nowadays it's used to untar modules and finish the boot so that I can have a clean separation between a kernel image and a rootfs. It even allows to perform some minimal debugging as it includes a minimalistic shell. Do you think something like this could be of any use in your development sessions ? If so I can discuss this with you in a separate thread so as not to annoy everyone. Just let me know :-) Cheers, Willy