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=-5.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 1C7AFC433E6 for ; Mon, 31 Aug 2020 18:07:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ED19820866 for ; Mon, 31 Aug 2020 18:07:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598897255; bh=mT02m9LGUtdJx/MKBCUbSyBlurnYCmp8psFx934v7p4=; h=Date:From:To:Cc:Subject:Reply-To:List-ID:From; b=l+CGiR287Bfwrmj0EZz9nLRJt1p4j+0d/M7yCq9otUzIutMDultObv8+bVXY01CI2 RL4YlwRZhCzmyY3CUcu+R1VPqjWpCzcTgDDofCwA4TYOmpBARmtgD/KOUGo4h1j11b XqgQxtJYOGW5niyuRfNkwWnwjkStsvKvf4bmIXYg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729214AbgHaSHd (ORCPT ); Mon, 31 Aug 2020 14:07:33 -0400 Received: from mail.kernel.org ([198.145.29.99]:54294 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726226AbgHaSHc (ORCPT ); Mon, 31 Aug 2020 14:07:32 -0400 Received: from paulmck-ThinkPad-P72.home (unknown [50.45.173.55]) (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 1B2602083E; Mon, 31 Aug 2020 18:07:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598897252; bh=mT02m9LGUtdJx/MKBCUbSyBlurnYCmp8psFx934v7p4=; h=Date:From:To:Cc:Subject:Reply-To:From; b=zF8T3gDWq9H4HHxIvZK47lvmNSqfROe5nq5Ndp/1i20quLpSUkkym6oKmeUMYzAJH yVazf0g04b9TjiOQk1SXjE4TmzYyEGwxXIf80wRRjA09i+7wQ9O385kQGRnNoZ/Dol WFl6qYqQ99KAbAWtgXI6Q3YoXtrt5O/tuUodNlKo= Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id DD25D35230F1; Mon, 31 Aug 2020 11:07:31 -0700 (PDT) Date: Mon, 31 Aug 2020 11:07:31 -0700 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, dipankar@in.ibm.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 0/19] New smp_call_function() torture test for v5.10 Message-ID: <20200831180731.GA582@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) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello! This series introduces a new torture test for smp_call_function() and friends: 1. Add smp_call_function() torture test. 2. Declare parse-console.sh independence from rcutorture. 3. Add scftorture to the rcutorture scripting. 4. Implement weighted primitive selection. 5. tick-sched: Clarify "NOHZ: local_softirq_pending" warning. 6. Summarize per-thread statistics. 7. Add smp_call_function_single() memory-ordering checks. 8. Add smp_call_function_many() memory-ordering checks. 9. Add smp_call_function() memory-ordering checks. 10. Consolidate scftorture_invoke_one() check and kfree(). 11. Consolidate scftorture_invoke_one() scf_check initialization. 12. Flag errors in torture-compatible manner. 13. Prevent compiler from reducing race probabilities. 14. Make symbol 'scf_torture_rand' static. 15. Check unexpected "switch" statement value. 16. Block scftorture_invoker() kthreads for offline CPUs. 17. Adapt memory-ordering test to UP operation. 18. Add cond_resched() to test loop. 19. Change rcuperf to rcuscale. Thanx, Paul ------------------------------------------------------------------------ b/Documentation/admin-guide/kernel-parameters.txt | 128 + b/MAINTAINERS | 3 b/kernel/Makefile | 2 b/kernel/rcu/Kconfig.debug | 2 b/kernel/rcu/Makefile | 2 b/kernel/rcu/rcuscale.c | 330 ++-- b/kernel/scftorture.c | 755 ++++++++-- b/kernel/time/tick-sched.c | 2 b/lib/Kconfig.debug | 10 b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale-ftrace.sh | 6 b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale.sh | 14 b/tools/testing/selftests/rcutorture/bin/kvm-recheck-scf.sh | 38 b/tools/testing/selftests/rcutorture/bin/kvm.sh | 10 b/tools/testing/selftests/rcutorture/bin/parse-console.sh | 11 b/tools/testing/selftests/rcutorture/configs/rcuscale/CFcommon | 2 b/tools/testing/selftests/rcutorture/configs/rcuscale/ver_functions.sh | 4 b/tools/testing/selftests/rcutorture/configs/scf/CFLIST | 2 b/tools/testing/selftests/rcutorture/configs/scf/CFcommon | 2 b/tools/testing/selftests/rcutorture/configs/scf/NOPREEMPT | 9 b/tools/testing/selftests/rcutorture/configs/scf/NOPREEMPT.boot | 1 b/tools/testing/selftests/rcutorture/configs/scf/PREEMPT | 9 b/tools/testing/selftests/rcutorture/configs/scf/ver_functions.sh | 30 tools/testing/selftests/rcutorture/configs/rcuperf/CFcommon | 2 23 files changed, 1073 insertions(+), 301 deletions(-)