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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 7F99DC433F5 for ; Fri, 31 Aug 2018 06:54:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 439E320837 for ; Fri, 31 Aug 2018 06:54:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 439E320837 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=burcheri.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727363AbeHaLAd (ORCPT ); Fri, 31 Aug 2018 07:00:33 -0400 Received: from mout.kundenserver.de ([212.227.126.130]:41156 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727177AbeHaLAc (ORCPT ); Fri, 31 Aug 2018 07:00:32 -0400 Received: from localhost ([94.79.149.170]) by mrelayeu.kundenserver.de (mreue002 [212.227.15.167]) with ESMTPSA (Nemesis) id 0Lzkkl-1frpoZ0s0R-014zCX; Fri, 31 Aug 2018 08:54:24 +0200 Message-ID: <1535698162.6624.31.camel@burcheri.de> Subject: Re: blk-mq crashing on battery mode From: Massimo Burcheri To: "jianchao.wang" Cc: Jens Axboe , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, Omar Sandoval In-Reply-To: References: <1534926011.18658.29.camel@burcheri.de> <1535092156.11909.8.camel@burcheri.de> Face: 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 Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="=-43iEQBTRbqeAJEy0+Dhb" Date: Fri, 31 Aug 2018 08:49:22 +0200 Mime-Version: 1.0 X-Mailer: Evolution 3.24.6 X-Provags-ID: V03:K1:rmaKKkuIB5hDWLY4x1F02EjXtC8AHMGZ8BsiZLqhfJXkci3/JIB tOPsEgPfsG9KYexw/YfZDRTz/agAtQJKxLcna8nX/Zecr2GVx/siE6aDb6qPy2+lr629vLr nsj8pZ6T21XqMnk4xFxKhfVaesiFuwqmC03Tqio3NvWIOrSQ4jvaYK/18q0x5Cb9D9rVceD N7r7YQY64szF2os8Tx3zw== X-UI-Out-Filterresults: notjunk:1;V01:K0:dxIrF4K7AwA=:7GQLwIKkom4DcgWXSdY7cp Qd+y0095ayc182X8F1zUUYhM66guakMUdkHjeDhriRDyAyvHmrDS0LlARBYnekv9UcuC+ITI9 M/21OkD75Qle4rp8f3r6zmVTinMh142pzWFyqa6/+CS5MxOpXuK3zYGtbawRa+RwaTHV79pAz 3Isr/6T/IYb0bPdaaqPDlQjbZepqaC0sG1b7nHZmv3XWOlLXtYa9vZl7RAaAj1JgUY/KKpujP 1qHWwKMVlRy0rUjgEeIcbKgiwZskO1l/edRMEuxwQZefxijsJrifz0ceSEG7odnB9zWf6l59K IROtqwx7LfAI6fQ3FvGL6L4pWeicKxKMseGYRXa+kGoaHGmwRxl8CT81GcxQX3MFRNl+UNV66 7ILcWpNy1gUpfT8r956n+7L3ePOH5kxU3vOzdA0AsqCnxo+UA1VSNgNiI5zZiovHORzobIvgC CHBpmtE44N1GvVoPaQ2GpTuTcCJBW/+DnvfWsbGTUDLPJh1FHcpyqzfgavBazi03ZxSAl1p14 4m6JMmH0EFsBQ/l4MPMb4GsSXiqrCeO9DDIiElebzw7wa/pVuxAD9lQ6zSg4/E6+ZqA9wqj8K 7xSV3qNUBYaFWqkEI8LL4yXBa2uqXwh55o9Vm+L4Y2OcrvvaEEqdp2s3CS0hf45Ruu2JZGiAv vMwGk1pV94z/46hA8dlRiYrGlBcVJYzhUyBnf7E7Vt2RUzwPrbXQK676AiaYu4gM9MeA8Elam TikdExnHpt7X0kvC9WBULLeWNELE2uTLPK/7f3cOyJXZWicEn8oeSywvwllXtc7HoGrVuEcBl ijKoyif Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-43iEQBTRbqeAJEy0+Dhb Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, 2018-08-24 at 15:12 +0800, jianchao.wang wrote: > So this issue should not related with io scheduler. Hi, I can't localize the specific issue and have changed the subject to blk= -mq. > Would you please share the entire dmesg log or backtrace you got on 4.18.= 3 ? Have you been able to reproduce this? I reproduced the backtrace on a vanil= la 4.18.3: https://ibin.co/4E3q5dETqA5T.jpg Best regards, Massimo --=-43iEQBTRbqeAJEy0+Dhb Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEjdL61EKP3VOAA+I8lQj3p5VSZjIFAluI5PIACgkQlQj3p5VS ZjLWOg/+OoHTqFGVd1DSUkWeie6Z0a3PmgFyFESfIIQDOz1xNIR4j/XPvxDR1gut BXa+lydeJ062GQI+QZZYfhCIOAh1QvrZ2A6dOabar1zM8cDUzaVuRV49a8CK7QOu DFN5Nh40G2uYRF8mrd6szurzJlTUm8dRixpTxQk5+pwfB3TZU3H2w/d7MAKIxDPH FzfUup+qLpXSoxUpz1JXSpeOsTVPPTgOqcTMI+nTnnY/WJAMfRr4mFP3MUOTpsWs ovQoHveFZK9OiWs2xlr+ybEQ3JHMqPecnD8PvKu5xkPA3tODbUYj/bxt+0swzrio bEZx4ZMWKhLXWppgRAbsPxFb9lXK7kIDDF3AGf3uorFtdPuiKaTd/oxt91oLagKt SR3xHG1bvyI0AqCQ1PSF4xlg+U7nRWmrramU63VIuoxGpxxRe2CqQP3wgL72UFOt YCyGFrfPaCmbIltczhkVZoA+UpY+yB2eoZIbYugVirqiZ3znTmbFYNZn3t8/jyqL sQBWmtuNIkakhqciF9w4AU385iCUpwkpQxUtXGzgKhyNmfaDV/u6ZcIvqpQi2y6D 6kmFD8pTfDkSWCZblOC/c+e2TV3Xvg2HjzyT6Av0xEhs11vwZV2mzug69lrb++Et yj1xOwB/LU/q3/OzTGpq4RUDWoy/8qApi7yBryw0JSHreie5NSQ= =hEIB -----END PGP SIGNATURE----- --=-43iEQBTRbqeAJEy0+Dhb--