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=-11.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 70196C4332B for ; Tue, 24 Mar 2020 09:20:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4EF0420842 for ; Tue, 24 Mar 2020 09:20:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727393AbgCXJQh (ORCPT ); Tue, 24 Mar 2020 05:16:37 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:43895 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727119AbgCXJQg (ORCPT ); Tue, 24 Mar 2020 05:16:36 -0400 Received: from [5.158.153.53] (helo=tip-bot2.lab.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1jGffm-0007wX-37; Tue, 24 Mar 2020 10:16:34 +0100 Received: from [127.0.1.1] (localhost [IPv6:::1]) by tip-bot2.lab.linutronix.de (Postfix) with ESMTP id A16D41C0475; Tue, 24 Mar 2020 10:16:30 +0100 (CET) Date: Tue, 24 Mar 2020 09:16:30 -0000 From: "tip-bot2 for Paul E. McKenney" Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: core/rcu] rcutorture: Set KCSAN Kconfig options to detect more data races Cc: "Paul E. McKenney" , x86 , LKML MIME-Version: 1.0 Message-ID: <158504139035.28353.7411727478339304632.tip-bot2@tip-bot2> X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the core/rcu branch of tip: Commit-ID: a144935ceaed277c3e640b85f4cff89d7cce4b8f Gitweb: https://git.kernel.org/tip/a144935ceaed277c3e640b85f4cff89d7cce4b8f Author: Paul E. McKenney AuthorDate: Thu, 06 Feb 2020 05:20:18 -08:00 Committer: Paul E. McKenney CommitterDate: Thu, 20 Feb 2020 16:03:31 -08:00 rcutorture: Set KCSAN Kconfig options to detect more data races This commit enables the KCSAN Kconfig options that (1) detect data races between reads and writes even when the writes do not change the variable's value and (2) detect data races involving plain C-language writes. These changes only affect scripted rcutorture runs and can be overridden using the kvm.sh --kconfig argument. Signed-off-by: Paul E. McKenney --- tools/testing/selftests/rcutorture/configs/rcu/CFcommon | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/selftests/rcutorture/configs/rcu/CFcommon b/tools/testing/selftests/rcutorture/configs/rcu/CFcommon index e19a444..0e92d85 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/CFcommon +++ b/tools/testing/selftests/rcutorture/configs/rcu/CFcommon @@ -3,3 +3,5 @@ CONFIG_PRINTK_TIME=y CONFIG_HYPERVISOR_GUEST=y CONFIG_PARAVIRT=y CONFIG_KVM_GUEST=y +CONFIG_KCSAN_ASSUME_PLAIN_WRITES_ATOMIC=n +CONFIG_KCSAN_REPORT_VALUE_CHANGE_ONLY=n