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=-5.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 27407C433B4 for ; Wed, 12 May 2021 23:21:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F3D40613EB for ; Wed, 12 May 2021 23:21:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231128AbhELXWJ (ORCPT ); Wed, 12 May 2021 19:22:09 -0400 Received: from mail.xmyslivec.cz ([83.167.247.77]:35838 "EHLO mail.xmyslivec.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349952AbhELWuE (ORCPT ); Wed, 12 May 2021 18:50:04 -0400 X-Greylist: delayed 550 seconds by postgrey-1.27 at vger.kernel.org; Wed, 12 May 2021 18:50:03 EDT Received: from [172.23.0.68] (mh1-fw.logicworks.mh.etn.cz [82.113.58.199]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.xmyslivec.cz (Postfix) with ESMTPSA id BA2BB4022F; Thu, 13 May 2021 00:39:31 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=xmyslivec.cz; s=master; t=1620859171; bh=3Yf8cronTNezzMhKYBkkHKtKHHs3xOHqzA1zr54ZIFo=; h=To:Cc:References:From:Subject:Date:In-Reply-To:From; b=gk7gWIMVYf6LlaIZeOFtI1W1gbvk3yKrBtdwoTMKZo0k/vAy4QWJXIOOuUUSC65jn Ex8beXzW36FdO7Wg7gnDEdp/KsQead/7w470Wooo0yoaLhJHSVj9jdM7YxVk5AH5a8 FXNXHp9MRSm0CCBObgKmxKHMDnbe5u0PBdk/eKpNNSI1M/mBSY14oDM5v/Q5R0OvmX 6Nfu4N8f/p/hILPBczFEMHuFabrbWh9nByMoWRwkS8Ec/SnK6jI/PArSSOGBPDkPh7 LLlAGa11VdOmIRUd1UmCDx3UxBQgIQCEvwBbJw1sC1Ejl145PqklFbli3j59fPUPPR 82ff1AppgBWBQ== To: Song Liu Cc: Manuel Riel , Linux-RAID , Michal Moravec References: <27EE5CBC-B1B8-4463-87F5-2AE73F30941B@snapdragon.cc> From: Vojtech Myslivec Subject: Re: [PATCH] md: warn about using another MD array as write journal Message-ID: <0016997f-7fbe-a346-e94a-b3dd6d5e04c0@xmyslivec.cz> Date: Thu, 13 May 2021 00:39:29 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/mixed; boundary="------------A9939921D67E7789AF073D0E" Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-raid@vger.kernel.org This is a multi-part message in MIME format. --------------A9939921D67E7789AF073D0E Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit It has been two months since I last reported the state of the issue: On 17. 03. 21 16:55, Vojtech Myslivec wrote: > Thanks a lot Manuel for your findings and information. > > I have moved journal from logical volume on RAID1 to a plain partition > on a SSD and I will monitor the state. So, we run the MD level 6 array (/dev/md1) with journal device on a plain partition of one of SSD disk (/dev/sdh5) now. See attached files for more details. Since then (March 17th), our discussed issue happened "only" three times. First occurrence was on April 21st, 5 weeks after moving the journal. *I can confirm that the issue still persist, but it is definitely less frequent.* On 22. 03. 21 18:13, Song Liu wrote: > Thanks for the information. Quick question, does the kernel have the > following change? > > commit c9020e64cf33f2dd5b2a7295f2bfea787279218a Author: Song > Liu Date: 9 months ago > > ... We run latest available kernel from "Debian backports" distribution repository, that is Linux version 5.10 currently. I checked that we had kernel 5.10 as well on March, when I moved the journal. If I checked it well, this particular patch is part of kernel 5.9 already. Maybe unrelated, but I noticed this log message just after our "unstuck" script performed some random I/O operation (just as I described before in this e-mail thread): May 2 ... kernel: [2035647.004554] md: md1: data-check done. I would provide more information if needed. Thanks for any new info. 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