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=-7.4 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 F35D7C433DB for ; Thu, 11 Feb 2021 10:37:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9E95364E9A for ; Thu, 11 Feb 2021 10:37:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229647AbhBKKhV (ORCPT ); Thu, 11 Feb 2021 05:37:21 -0500 Received: from mail.jv-coder.de ([5.9.79.73]:33570 "EHLO mail.jv-coder.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230050AbhBKKfC (ORCPT ); Thu, 11 Feb 2021 05:35:02 -0500 Received: from [192.168.178.40] (unknown [188.192.1.224]) by mail.jv-coder.de (Postfix) with ESMTPSA id 05F05A14B9; Thu, 11 Feb 2021 10:34:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=jv-coder.de; s=dkim; t=1613039645; bh=LcTRFOTkQnbeyfl+wKEoO2VXLucFdQjucP6C5s8Ghi4=; h=Subject:To:From:Message-ID:Date:MIME-Version; b=RRtRczBY7+J2dheRBG9l8IVaj/QeXTzt/uDQLjUe59cHorIo7eoK0BeHSSeJ5XOlR f6vaWGCAENKeABhqg6UuIT/92XQ/vQFAztWj3CaROjsOXRvXFqVmCp262TyHKFknUd cFI3722tozEazAXmFlR8ncRY9p4GoDIXpr2YPkpg= Subject: Re: [4.14] Failing selftest timer/adjtick To: Naresh Kamboju Cc: Greg KH , Miroslav Lichvar , linux-stable , Ingo Molnar , John Stultz , lkft-triage@lists.linaro.org References: <239b8a9a-d550-11e3-4650-39ad5bd85013@jv-coder.de> <20210210131916.GC1903164@localhost> From: Joerg Vehlow Message-ID: <4fa3c57d-23ea-2f8c-72fe-d23f3146f571@jv-coder.de> Date: Thu, 11 Feb 2021 11:34:58 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org Hi, On 2/10/2021 7:59 PM, Naresh Kamboju wrote: > I have tested adjtick on arm64 juno-r2 device and it got pass > and here is the test output on Linux version 4.14.221-rc1. Interesting. Is this vanilla 4.14.221 or are there some o-e patches applied? I just tried again on qemu arm with 4.14.222 from kernel.org stable tree and still have failures like the one below every time I try. The failing test step differs, but it always fails. Each iteration takes about 15 seconds Estimating tick (act: 9000 usec, -100000 ppm): 9000 usec, -100000 ppm    [OK] Estimating tick (act: 9250 usec, -75000 ppm): 9250 usec, -75001 ppm    [OK] Estimating tick (act: 9500 usec, -50000 ppm): 9501 usec, -49995 ppm    [OK] Estimating tick (act: 9750 usec, -25000 ppm): 9750 usec, -25003 ppm    [OK] Estimating tick (act: 10000 usec, 0 ppm): 9996 usec, -463 ppm [FAILED] Bail out! Pass 0 Fail 0 Xfail 0 Xpass 0 Skip 0 Error 0 1..0 Joerg