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=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,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 5465CC43460 for ; Thu, 1 Apr 2021 03:33:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 216096112E for ; Thu, 1 Apr 2021 03:33:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233524AbhDADcX (ORCPT ); Wed, 31 Mar 2021 23:32:23 -0400 Received: from mail-m118208.qiye.163.com ([115.236.118.208]:40834 "EHLO mail-m118208.qiye.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233102AbhDADcR (ORCPT ); Wed, 31 Mar 2021 23:32:17 -0400 Received: from vivo-HP-ProDesk-680-G4-PCI-MT.vivo.xyz (unknown [58.251.74.232]) by mail-m118208.qiye.163.com (Hmail) with ESMTPA id 4792AE0121; Thu, 1 Apr 2021 11:32:15 +0800 (CST) From: Wang Qing To: Jonathan Corbet , Joe Perches , Wang Qing , Mauro Carvalho Chehab , Stephen Kitt , Andrew Morton , Kees Cook , Randy Dunlap , "Guilherme G. Piccoli" , Eric Biggers , Qais Yousef , Petr Mladek , Vlastimil Babka , Santosh Sivaraj , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Alexey Budankov , Andrey Ignatov Cc: gregkh@linuxfoundation.org Subject: [PATCH V2 4/4] doc: watchdog: Modify the doc related to "watchdog/%u" Date: Thu, 1 Apr 2021 11:31:34 +0800 Message-Id: <1617247900-23813-5-git-send-email-wangqing@vivo.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1617247900-23813-1-git-send-email-wangqing@vivo.com> References: <1617247900-23813-1-git-send-email-wangqing@vivo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-HM-Spam-Status: e1kfGhgUHx5ZQUtXWQgYFAkeWUFZS1VLWVdZKFlBSE83V1ktWUFJV1kPCR oVCBIfWUFZH0kYGE8fGEhJGR4YVkpNSkxJT0xCSE1LSE1VEwETFhoSFyQUDg9ZV1kWGg8SFR0UWU FZT0tIVUpKS0hKTFVLWQY+ X-HM-Sender-Digest: e1kMHhlZQR0aFwgeV1kSHx4VD1lBWUc6K1E6KSo5Cj8UDjRMIhMOPRY9 KyxPCiJVSlVKTUpMSU9MQkhNT0tPVTMWGhIXVQwaFRwKEhUcOw0SDRRVGBQWRVlXWRILWUFZTkNV SU5KVUxPVUlISVlXWQgBWUFITU1JNwY+ X-HM-Tid: 0a788b7d1dc62c17kusn4792ae0121 Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org "watchdog/%u" threads has be replaced by cpu_stop_work. The current description is extremely misleading. --- Documentation/admin-guide/sysctl/kernel.rst | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst index 1d56a6b..32b0791 --- a/Documentation/admin-guide/sysctl/kernel.rst +++ b/Documentation/admin-guide/sysctl/kernel.rst @@ -1282,11 +1282,11 @@ This parameter can be used to control the soft lockup detector. = ================================= The soft lockup detector monitors CPUs for threads that are hogging the CPUs -without rescheduling voluntarily, and thus prevent the 'watchdog/N' threads -from running. The mechanism depends on the CPUs ability to respond to timer -interrupts which are needed for the 'watchdog/N' threads to be woken up by -the watchdog timer function, otherwise the NMI watchdog — if enabled — can -detect a hard lockup condition. +without rescheduling voluntarily, and thus prevent the 'migration/N' threads +from running, causing the watchdog work fail to execute. The mechanism depends +on the CPUs ability to respond to timer interrupts which are needed for the +watchdog work to be queued by the watchdog timer function, otherwise the NMI +watchdog — if enabled — can detect a hard lockup condition. stack_erasing -- 2.7.4