Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2D7EDC433EF for ; Thu, 9 Dec 2021 13:14:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237645AbhLINRr (ORCPT ); Thu, 9 Dec 2021 08:17:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44316 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231868AbhLINRp (ORCPT ); Thu, 9 Dec 2021 08:17:45 -0500 Received: from mail-pg1-x536.google.com (mail-pg1-x536.google.com [IPv6:2607:f8b0:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E7408C061746 for ; Thu, 9 Dec 2021 05:14:11 -0800 (PST) Received: by mail-pg1-x536.google.com with SMTP id r5so5057264pgi.6 for ; Thu, 09 Dec 2021 05:14:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20210112.gappssmtp.com; s=20210112; h=message-id:date:mime-version:user-agent:to:cc:references:subject :content-language:from:in-reply-to:content-transfer-encoding; bh=4WGL4ccmA0pO2Hx3UfijQbiapb8oWzN9kFKTdy3330A=; b=LZKFw+NFq2TYrJZcq8ffZXrXphuL++v0N/ht3MKFb9VS+Gcsm0SW6yHXDaaR/heb0F DE5VykkAXULXRtOb0Lyyp9KFCN1gZxd6kwLHThIrIWag2yAQEeZ2hTRv7PQSJWk3w+wT zZDpgkIooszphpt4bz25byxWXdLupD6Z4LkSqJ/uBZ8fmchj65rwWKm7sI91oRLUeltH Juhj2kVwKWnjuLsjL8KB5RmcFPdLwgsuidJqJDoI2o0cjx/U7I4weXTGiPI7OveeqnKX hsZt9V+0gVLjUwjtPy8r4z3+/mCa98cvBqgzncANVA9R8MAHZ82l3fyNfZ1Ie3iQt8rt ha/w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:to:cc :references:subject:content-language:from:in-reply-to :content-transfer-encoding; bh=4WGL4ccmA0pO2Hx3UfijQbiapb8oWzN9kFKTdy3330A=; b=F+BO82DwI9sND0uMXlKYaaqMtA4AKBp45Q30cPzzhKg/ec5ESI0A/Bu5IvQ6dU1qWg Dq0/u6+Hq8PJiJTlu3sPEGOmyZHHnm/atdYsj8fe6tMc8Ga8BQ0kNFx8qVPRKHk0o+Es 7Ce6yg1+vdnjah7jo1ieCG1efhBnOw3va85AVHuokYcZoSD3YK84wYMSQDN1+/+M2xMS Ez7lhTCWJTzf5unuMX/TV90+jqZ/33mtiDlrpjQZkhnbF/1ojeC2ytpYzyTYypodJYMA 1Abxf5QGFJ1wj6XO1T9qFfgfZyttiTfxKDNKSS+qacadFHcv1HgbBWcRErmA9YLv/Rq5 4dAg== X-Gm-Message-State: AOAM530Q3Kv4QbAo6z2m1t5RmIuqn1aVbw09NWm4H5WjIOjG0AQ8OG2Q j2ByPoXbO+WJt4FSm2NLbGdAX5EuR9dTy8IE X-Google-Smtp-Source: ABdhPJxBFPYluJRzV3dctEOPxxReCR8tJbqMgSt1q1oZ95O26VLCAu0ou5adBndmiNs0hAUWlbDbqw== X-Received: by 2002:a05:6a00:2387:b0:49f:af00:d5d0 with SMTP id f7-20020a056a00238700b0049faf00d5d0mr11691395pfc.1.1639055651362; Thu, 09 Dec 2021 05:14:11 -0800 (PST) Received: from [10.200.203.229] ([139.177.225.231]) by smtp.gmail.com with ESMTPSA id j16sm8480051pfj.16.2021.12.09.05.14.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 09 Dec 2021 05:14:10 -0800 (PST) Message-ID: Date: Thu, 9 Dec 2021 21:14:05 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Thunderbird/91.3.2 To: john.stultz@linaro.org Cc: linux-kernel@vger.kernel.org, sboyd@kernel.org, tglx@linutronix.de, yanghui.def@bytedance.com, brookxu.cn@gmail.com, paulmck@kernel.org, luming.yu@gmail.com, songmuchun@bytedance.com, zhengqi.arch@bytedance.com References: Subject: Re: [PATCH] Clocksource: Avoid misjudgment of clocksource Content-Language: en-US From: Gang Li In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, How about changing clocksource_watchdog from classical timer to hrtimer? hrtimer is more accurate and stable, and makes it much easier for us to deal with misjudgments. -- Thanks Gang Li