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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,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 114EDC282C3 for ; Tue, 22 Jan 2019 03:32:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DF0A620861 for ; Tue, 22 Jan 2019 03:32:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726942AbfAVDcP (ORCPT ); Mon, 21 Jan 2019 22:32:15 -0500 Received: from mail.cn.fujitsu.com ([183.91.158.132]:13033 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725901AbfAVDcO (ORCPT ); Mon, 21 Jan 2019 22:32:14 -0500 X-IronPort-AV: E=Sophos;i="5.56,504,1539619200"; d="scan'208";a="52542904" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 22 Jan 2019 11:32:13 +0800 Received: from G08CNEXCHPEKD03.g08.fujitsu.local (unknown [10.167.33.85]) by cn.fujitsu.com (Postfix) with ESMTP id 39BF14C4A89A; Tue, 22 Jan 2019 11:32:11 +0800 (CST) Received: from [10.167.226.222] (10.167.226.222) by G08CNEXCHPEKD03.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.408.0; Tue, 22 Jan 2019 11:32:12 +0800 To: CC: , , , , , "Li, Philip" , From: Su Yue Subject: rcutorture: meaning of "End of test: RCU_HOTPLUG" Message-ID: <996df745-8434-b92c-bad9-334cc6bf4b7f@cn.fujitsu.com> Date: Tue, 22 Jan 2019 11:40:53 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.2 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.167.226.222] X-yoursite-MailScanner-ID: 39BF14C4A89A.ABCC3 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: suy.fnst@cn.fujitsu.com Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, guys While running rcutorture tests with "onoff_interval", some tests failed and results show like: ===================================================================== [ 316.354501] srcud-torture:--- End of test: RCU_HOTPLUG: nreaders=1 nfakewriters=4 stat_interval=60 verbose=2 test_no_idle_hz=1 shuffle_interval=3 stutter=5 irqreader=1 fq\ s_duration=0 fqs_holdoff=0 fqs_stutter=3 test_boost=1/0 test_boost_interval=7 test_boost_duration=4 shutdown_secs=0 stall_cpu=0 stall_cpu_holdoff=10 stall_cpu_irqsoff=0 n_ba\ rrier_cbs=0 onoff_interval=3 onoff_holdoff=0 ==================================================================== I am wondering that meaning of "RCU_HOTPLUG". Is it expected because cpu hotplug is enabled in the test? Or just represents another type of failure? Thanks, Su