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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 597FAC43381 for ; Thu, 4 Mar 2021 01:01:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2E60C64EF9 for ; Thu, 4 Mar 2021 01:01:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350351AbhCDBBc (ORCPT ); Wed, 3 Mar 2021 20:01:32 -0500 Received: from mail.kernel.org ([198.145.29.99]:38780 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1452915AbhCDAjR (ORCPT ); Wed, 3 Mar 2021 19:39:17 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3115064E6C; Thu, 4 Mar 2021 00:38:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1614818294; bh=z+HGCe//ytSnBPilWbxL+zFrzs9adZeUu8IaNhuNeSA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Aatqx6AvaCK3YRfsq5dnOMQXkWoLsc7dxJG5cnjq4IXV2wAmdnZdV+Mp9DGddMosz 2nblAU2oqCnAZzwSuuXfkZui7G6pqR+vSeKw5lEp/P0/5wZN9mWg4RR0yLT0hX54+9 Cx/Yg+dWF5dECxtelXH4IOp0iXzVcB/R+UCzFodFBTdd4IszWinI1yWXL6HQ/lcU8h YmTxpu9yE7ZbAsTGBm8HeKAquKosLf1f1a1HCtic4CedrvuuXciXVzvaSI3+zV1+Zj ziZp5Z/jOdRYEUm3DbEiWHTnOFQgR3+Ml9mNAEQdqj9Juyycgwa5u5It5cCItofOni KGLl6FKWb5+VA== 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 05/28] rcuscale: Disable verbose torture-test output Date: Wed, 3 Mar 2021 16:37:49 -0800 Message-Id: <20210304003812.24833-5-paulmck@kernel.org> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20210304003750.GA24696@paulmck-ThinkPad-P72> References: <20210304003750.GA24696@paulmck-ThinkPad-P72> Precedence: bulk List-ID: X-Mailing-List: rcu@vger.kernel.org From: "Paul E. McKenney" Given large numbers of threads, the quantity of torture-test output is sufficient to sometimes result in RCU CPU stall warnings. The probability of these stall warnings was greatly reduced by batching the output, but the warnings were not eliminated. However, the actual test only depends on console output that is printed even when rcuscale.verbose=0. This commit therefore causes this test to run with rcuscale.verbose=0. Signed-off-by: Paul E. McKenney --- tools/testing/selftests/rcutorture/configs/rcuscale/ver_functions.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/rcutorture/configs/rcuscale/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/rcuscale/ver_functions.sh index 0333e9b..ffbe151 100644 --- a/tools/testing/selftests/rcutorture/configs/rcuscale/ver_functions.sh +++ b/tools/testing/selftests/rcutorture/configs/rcuscale/ver_functions.sh @@ -12,5 +12,5 @@ # Adds per-version torture-module parameters to kernels supporting them. per_version_boot_params () { echo $1 rcuscale.shutdown=1 \ - rcuscale.verbose=1 + rcuscale.verbose=0 } -- 2.9.5