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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 C62D1C433DB for ; Wed, 6 Jan 2021 17:16:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 88F9223123 for ; Wed, 6 Jan 2021 17:16:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726458AbhAFRQN (ORCPT ); Wed, 6 Jan 2021 12:16:13 -0500 Received: from mail.kernel.org ([198.145.29.99]:60120 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726375AbhAFRQN (ORCPT ); Wed, 6 Jan 2021 12:16:13 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9F3A122B2B; Wed, 6 Jan 2021 17:15:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1609953332; bh=hMXWI6Rtv/QIDxQnmDd4rULkZi19U/9afBZSYZQyizw=; h=Date:From:To:Cc:Subject:Reply-To:From; b=d/wR+E/kjlOuv97xyrSHpJTYNu0X1bpNPBdpNtiZTN2ud1n2nxcWcRX561Vp/eDLi kyTbTiQINwWeNc+N6sBBgL0Vui7Ob1KCDlaf/ziAgAA9AUJztV6doNNIrmOr0ta41P j9unq1QvudmrSkRRPSLWYb8Aqqxr6kY25sIp3mKvSwt6UWDw1olFt7nBCCzl98ehxX 9s7ZqhdXU213QkLVMtNdy4hX+VJMxjhm1VCak0Xf+RX5EE4Xhyhkmqx6wyhyP7LBP2 4g+hJUdTcpn8rStvYqqH4XBOl+0IQASE/8tn/ApYB/oygFzrpAfG+RPOF+f5BdHxJl A82gO6uXFdskQ== Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id 6713E35225EC; Wed, 6 Jan 2021 09:15:32 -0800 (PST) Date: Wed, 6 Jan 2021 09:15:32 -0800 From: "Paul E. McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com, mingo@kernel.org, jiangshanlai@gmail.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org Subject: [PATCH tip/core/rcu 0/17] Torture-test updates for v5.12 Message-ID: <20210106171532.GA20769@paulmck-ThinkPad-P72> Reply-To: paulmck@kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.9.4 (2018-02-28) Precedence: bulk List-ID: X-Mailing-List: rcu@vger.kernel.org Hello! This series provides torture-test updates, and must be applied on top of the SRCU series. 1. Add testing for RCU's global memory ordering. 2. Add debug output for wrong-CPU warning. 3. Allow summarization of verbose output. 4. Require entire stutter period be post-boot. 5. Make synctype[] and nsynctype be static global. 6. Make rcu_torture_fakewriter() use blocking wait primitives. 7. Add fuzzed hrtimer-based sleep functions. 8. Use torture_hrtimeout_jiffies() to avoid busy-waits. 9. Make stutter use torture_hrtimeout_*() functions. 10. Use hrtimers for reader and writer delays. 11. Make refscale throttle high-rate printk()s. 12. Throttle VERBOSE_TOROUT_*() output. 13. Make object_debug also double call_rcu() heap object. 14. Clean up after torture-test CPU hotplugging. 15. Maintain torture-specific set of CPUs-online books. 16. Break affinity of kthreads last running on outgoing CPU. 17. Add rcutree.use_softirq=0 to RUDE01 and TASKS01. Thanx, Paul ------------------------------------------------------------------------ Documentation/admin-guide/kernel-parameters.txt | 14 include/linux/torture.h | 27 + kernel/rcu/rcutorture.c | 246 ++++++++---- kernel/rcu/refscale.c | 25 - kernel/scftorture.c | 6 kernel/torture.c | 184 +++++++- tools/testing/selftests/rcutorture/configs/rcu/RUDE01.boot | 1 tools/testing/selftests/rcutorture/configs/rcu/TASKS01.boot | 1 8 files changed, 400 insertions(+), 104 deletions(-)