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=-6.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 B27DCC433DF for ; Wed, 24 Jun 2020 12:08:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9242F2088E for ; Wed, 24 Jun 2020 12:08:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593000516; bh=Aa/8MkArd4EWGij1kzI8suLnmqrtXk0z2p3kFoUhb1Y=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=YLpc4mdVFWj7a8nbtrvVOMUGHs1iSXT/F2KApUe5jOU3jpvejtsqnF2D8Dy4FNHR7 xjBheVjjSrYalb4nwkc5CFV7DYf3B0HCi7cmDcKSKnOWn4WqSdC+iEpjy1MaIYFw4m xmDpuTc6JT1sSyiXSzJo9GPIwy4uWHL9lQA6WyJM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390111AbgFXMIf (ORCPT ); Wed, 24 Jun 2020 08:08:35 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:35020 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388522AbgFXMIe (ORCPT ); Wed, 24 Jun 2020 08:08:34 -0400 Received: by mail-pf1-f195.google.com with SMTP id h185so1093975pfg.2; Wed, 24 Jun 2020 05:08:32 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=hKoC80Wq7vgR/nEQP76EsMeVeQcGFmckg9WTm/ySZtU=; b=pzscmqkD2CfyMgtwS4bH5JMlgZRqTU24ntszPmhj9AXENcFPcwrPHImvzz2w+DYnlU z3OHoBg8qkCI0N4cjGuaALBQKFjjJlWbIJdXrh/VOtOzIVMAwdspdPVRFKskNiu9LBTE ogsY28r8WwWzWN6iuOt+vz/krf+GSbs4xZnVXrQwz45HiL8YKXTaF3uIuP0afygygbDL 6tONFB959g2oN4aYEdr9IQdVkax8TtERCjVpotBVshfb15PSJkj8geq/nTL2SSF/8sVF THfTF2k9ogY+cAJQnGvChhxARHSeLWYE4XMTtElE1IvynJNAC6kIhuWm0hZUb+tlAR9O 6yKA== X-Gm-Message-State: AOAM532SXAPf2mUrjkAKxbiGHFxGxiD9Mq/WfItJ1QA6ehy/sdbRo9NI wq8HqIIZL3HcZUjWwpDjnkk= X-Google-Smtp-Source: ABdhPJy7+qAAHibTBd59vj1TFF3NDV4/7CT9zsa35G/gvOUinbvpiYYa0boVxe+S9Xo6K6bzCLHpGg== X-Received: by 2002:a63:395:: with SMTP id 143mr17860516pgd.57.1593000512400; Wed, 24 Jun 2020 05:08:32 -0700 (PDT) Received: from 42.do-not-panic.com (42.do-not-panic.com. [157.230.128.187]) by smtp.gmail.com with ESMTPSA id cu9sm5249668pjb.28.2020.06.24.05.08.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Jun 2020 05:08:30 -0700 (PDT) Received: by 42.do-not-panic.com (Postfix, from userid 1000) id ADB9940430; Wed, 24 Jun 2020 12:08:29 +0000 (UTC) Date: Wed, 24 Jun 2020 12:08:29 +0000 From: Luis Chamberlain To: Johannes Thumshirn Cc: Bart Van Assche , "axboe@kernel.dk" , "viro@zeniv.linux.org.uk" , "gregkh@linuxfoundation.org" , "rostedt@goodmis.org" , "mingo@redhat.com" , "jack@suse.cz" , "ming.lei@redhat.com" , "nstange@suse.de" , "akpm@linux-foundation.org" , "mhocko@suse.com" , "yukuai3@huawei.com" , "martin.petersen@oracle.com" , "jejb@linux.ibm.com" , "linux-block@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Christoph Hellwig Subject: Re: [PATCH v7 5/8] loop: be paranoid on exit and prevent new additions / removals Message-ID: <20200624120829.GE4332@42.do-not-panic.com> References: <20200619204730.26124-1-mcgrof@kernel.org> <20200619204730.26124-6-mcgrof@kernel.org> <7e76d892-b5fd-18ec-c96e-cf4537379eba@acm.org> <20200622122742.GU11244@42.do-not-panic.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 23, 2020 at 05:05:01PM +0000, Johannes Thumshirn wrote: > On 22/06/2020 14:27, Luis Chamberlain wrote: > [...]> If you run run_0004.sh from break-blktrace [0]. Even with all my patches > > merged we still run into this. And so the bug lies within the block > > layer or on the driver. I haven't been able to find the issue yet. > > > > [0] https://github.com/mcgrof/break-blktrace > > Would it be a good idea to merge this into blktests? Maybe start a blktrace > section for it, which could host other regression test for blktrace. > > Thoughts? Absolutely! That is the goal as well. Luis