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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,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 AFE1CC3815B for ; Mon, 20 Apr 2020 14:57:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 997F520857 for ; Mon, 20 Apr 2020 14:57:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729640AbgDTO5G (ORCPT ); Mon, 20 Apr 2020 10:57:06 -0400 Received: from magic.merlins.org ([209.81.13.136]:35246 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725944AbgDTO5G (ORCPT ); Mon, 20 Apr 2020 10:57:06 -0400 Received: from merlin by mail1.merlins.org with local (Exim 4.92 #3) id 1jQXr2-000773-08 by authid ; Mon, 20 Apr 2020 07:57:00 -0700 Date: Mon, 20 Apr 2020 07:56:59 -0700 From: Marc MERLIN To: Anand Jain Cc: Nikolay Borisov , dsterba@suse.com, linux-btrfs@vger.kernel.org, kernel-team@fb.com Subject: Re: 5.4.20: cannot mount device that blipped off the bus: duplicate device fsid:devid for Message-ID: <20200420145659.GA26389@merlins.org> References: <20200321202307.GA15906@merlins.org> <1aaae706-0029-be4f-9f6f-194b03087b35@suse.com> <20200325201455.GO29461@merlins.org> <20200326013007.GS15123@merlins.org> <0d2ea8e2-cbe8-ca64-d0d4-fa70b8cad8b1@oracle.com> <20200326042624.GT15123@merlins.org> <20200414003854.GA6639@merlins.org> <07166dd6-4554-a545-9774-a622890095a7@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <07166dd6-4554-a545-9774-a622890095a7@oracle.com> X-Sysadmin: BOFH X-URL: http://marc.merlins.org/ User-Agent: Mutt/1.10.1 (2018-07-13) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: marc@merlins.org Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Mon, Apr 20, 2020 at 07:10:24PM +0800, Anand Jain wrote: > The steps below are they in the chronological order? That is my recollection, yes. > Before and after --forget command > btrfs fi show -m > could have told us what devices are still mounted. Oh, I didn't know about this. If/when it happens next, I'll run this to show btrfs' understanding of what's mounted instead of the kernel's understanding (/proc/self/mounts) > I will send a boilerplate code to dump device list from the kernel it will > help to debug. As of now this boilderplate code which I have been using is > too localized needs a lot of cleanups, will take sometime. Sounds good. Thanks, Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Home page: http://marc.merlins.org/