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=-2.6 required=3.0 tests=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 8FEB8C35242 for ; Sat, 15 Feb 2020 00:36:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 64EF2207FF for ; Sat, 15 Feb 2020 00:36:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581726997; bh=XDmB0fzZx2g4HWiPoJ/T+BNmxX+vs22yK6L6RWm/DVw=; h=Date:From:To:Cc:Subject:Reply-To:List-ID:From; b=FNc7bR8ntPdHUjdvmXjL3FPOI4RTDiD4Ba1T1vqdfh1dsFCFyvo2OGDhWmiFBDASL R1YzQYE8DYkucn5YxlKe5ww20Grjttp2BlOy12qzyyL1OSgNTMstSz3hO6fW/Tx0oA 0xy1xgsoKwtiW+ptzZ3E4JCWF30HrSuHQ73F8v1s= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727572AbgBOAgh (ORCPT ); Fri, 14 Feb 2020 19:36:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:47194 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725924AbgBOAgh (ORCPT ); Fri, 14 Feb 2020 19:36:37 -0500 Received: from paulmck-ThinkPad-P72.home (unknown [62.84.152.189]) (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 64216206CC; Sat, 15 Feb 2020 00:36:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581726996; bh=XDmB0fzZx2g4HWiPoJ/T+BNmxX+vs22yK6L6RWm/DVw=; h=Date:From:To:Cc:Subject:Reply-To:From; b=Zd7EL7Iwo9YQ/ZGJ8nNqidTkHZVexjneMd1CpgZdZ4aAxpuTtP++nScZoXI5o2pSm peqV0TySNbZoa/x4S3UqTYb0M84OAtWZK8CmBodyPOr6V8GcgiczhyjrRh/e0KWapL 4aooINxN20BGPr1BOXo+7MLthAVFT1aDPWi9F/0Q= Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id A43083520D46; Fri, 14 Feb 2020 16:36:34 -0800 (PST) Date: Fri, 14 Feb 2020 16:36:34 -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, 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 0/18] Torture-test updates for v5.7 Message-ID: <20200215003634.GA16227@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: rcu-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: rcu@vger.kernel.org Hello! This series contains torture-test updates. 1. Suppress forward-progress complaints during early boot. 2. Make results-directory date format completion-friendly. 3. Refrain from callback flooding during boot. 4. Forgive -EBUSY from boottime CPU-hotplug operations. 5. Allow boottime stall warnings to be suppressed. 6. Suppress boottime bad-sequence warnings. 7. Allow disabling of boottime CPU-hotplug torture operations. 8. Add 100-CPU configuration. 9. Summarize summary of build and run results. 10. Make kvm-find-errors.sh abort on bad directory. 11. Fix rcu_torture_one_read()/rcu_torture_writer() data race. 12. Fix stray access to rcu_fwd_cb_nodelay. 13. Add READ_ONCE() to rcu_torture_count and rcu_torture_batch. 14. Annotation lockless accesses to rcu_torture_current. 15. Measure memory footprint during kfree_rcu() test. 16. Make rcu_torture_barrier_cbs() post from corresponding CPU. 17. Manually clean up after rcu_barrier() failure. 18. Set KCSAN Kconfig options to detect more data races. Thanx, Paul ------------------------------------------------------------------------ Documentation/admin-guide/kernel-parameters.txt | 10 + include/linux/rcutiny.h | 1 include/linux/rcutree.h | 1 kernel/rcu/rcu.h | 17 +++ kernel/rcu/rcuperf.c | 14 ++ kernel/rcu/rcutorture.c | 73 ++++++++++---- kernel/rcu/tree_exp.h | 9 + kernel/rcu/tree_stall.h | 6 - kernel/rcu/update.c | 20 +++ kernel/torture.c | 29 ++++- tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh | 2 tools/testing/selftests/rcutorture/bin/kvm-recheck.sh | 17 +++ tools/testing/selftests/rcutorture/bin/kvm.sh | 2 tools/testing/selftests/rcutorture/configs/rcu/CFcommon | 2 tools/testing/selftests/rcutorture/configs/rcu/TREE10 | 18 +++ 15 files changed, 187 insertions(+), 34 deletions(-)