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=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 CC478C55ABD for ; Thu, 5 Nov 2020 23:39:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 813C520739 for ; Thu, 5 Nov 2020 23:39:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604619578; bh=FN0GDxwCweIQTkcMLdFcjtU5Xjcus1pqSAOX2aT1Ris=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=FmYkSIytUvNQ0RLqOjEJwRm7572oSEv0aYhqG9+fxN0AQHI1qRo1AxCTCU0D4pBFz 8S5c/zfaXFm5YE5PgA9QNJ1ndpEVvIKXoBKkphjCPSFHPdXtzZJVF1CYDw2NO70wp1 b1I3AV8wYuEs1QKVMOReclMfWffH5Bypi/EeSVxk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732450AbgKEXjh (ORCPT ); Thu, 5 Nov 2020 18:39:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:43280 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726801AbgKEXjf (ORCPT ); Thu, 5 Nov 2020 18:39:35 -0500 Received: from paulmck-ThinkPad-P72.home (50-39-104-11.bvtn.or.frontiernet.net [50.39.104.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2169B20704; Thu, 5 Nov 2020 23:39:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604619575; bh=FN0GDxwCweIQTkcMLdFcjtU5Xjcus1pqSAOX2aT1Ris=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sdMLJW5uplmF8sDus1Wl651AgtJSHAwifj7nvMG8D2BkUeezOQX+9+gFELNkFt3GU nbbUfSx1qd61o4R7RAeRT6+zUs639gkiGnaRQTkm4sD6jLjZOtTmpeVfiWfwzCweyp 9VSW7MmbpcF7fpd6YFnG3VR41GpO8EwFJgcuIp9A= From: paulmck@kernel.org 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, "Paul E. McKenney" Subject: [PATCH tip/core/rcu 1/4] rcutorture: Make preemptible TRACE02 enable lockdep Date: Thu, 5 Nov 2020 15:39:30 -0800 Message-Id: <20201105233933.20748-1-paulmck@kernel.org> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20201105233900.GA20676@paulmck-ThinkPad-P72> References: <20201105233900.GA20676@paulmck-ThinkPad-P72> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Paul E. McKenney" Currently, the CONFIG_PREEMPT_NONE=y rcutorture TRACE01 rcutorture scenario enables lockdep. This limits its ability to find bugs due to non-preemptible sections of code being RCU readers, and pretty much all code thus appearing to lockdep to be an RCU reader. This commit therefore moves lockdep testing to the CONFIG_PREEMPT=y rcutorture TRACE02 scenario. Signed-off-by: Paul E. McKenney --- tools/testing/selftests/rcutorture/configs/rcu/TRACE01 | 6 +++--- tools/testing/selftests/rcutorture/configs/rcu/TRACE02 | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TRACE01 b/tools/testing/selftests/rcutorture/configs/rcu/TRACE01 index 12e7661..34c8ff5 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TRACE01 +++ b/tools/testing/selftests/rcutorture/configs/rcu/TRACE01 @@ -4,8 +4,8 @@ CONFIG_HOTPLUG_CPU=y CONFIG_PREEMPT_NONE=y CONFIG_PREEMPT_VOLUNTARY=n CONFIG_PREEMPT=n -CONFIG_DEBUG_LOCK_ALLOC=y -CONFIG_PROVE_LOCKING=y -#CHECK#CONFIG_PROVE_RCU=y +CONFIG_DEBUG_LOCK_ALLOC=n +CONFIG_PROVE_LOCKING=n +#CHECK#CONFIG_PROVE_RCU=n CONFIG_TASKS_TRACE_RCU_READ_MB=y CONFIG_RCU_EXPERT=y diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TRACE02 b/tools/testing/selftests/rcutorture/configs/rcu/TRACE02 index b69ed66..77541ee 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TRACE02 +++ b/tools/testing/selftests/rcutorture/configs/rcu/TRACE02 @@ -4,8 +4,8 @@ CONFIG_HOTPLUG_CPU=y CONFIG_PREEMPT_NONE=n CONFIG_PREEMPT_VOLUNTARY=n CONFIG_PREEMPT=y -CONFIG_DEBUG_LOCK_ALLOC=n -CONFIG_PROVE_LOCKING=n -#CHECK#CONFIG_PROVE_RCU=n +CONFIG_DEBUG_LOCK_ALLOC=y +CONFIG_PROVE_LOCKING=y +#CHECK#CONFIG_PROVE_RCU=y CONFIG_TASKS_TRACE_RCU_READ_MB=n CONFIG_RCU_EXPERT=y -- 2.9.5