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=-0.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 90605C742BD for ; Fri, 12 Jul 2019 13:36:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 61E85206B8 for ; Fri, 12 Jul 2019 13:36:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="rrinZwxj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727444AbfGLNgE (ORCPT ); Fri, 12 Jul 2019 09:36:04 -0400 Received: from mail-wm1-f66.google.com ([209.85.128.66]:35114 "EHLO mail-wm1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727291AbfGLNgE (ORCPT ); Fri, 12 Jul 2019 09:36:04 -0400 Received: by mail-wm1-f66.google.com with SMTP id l2so9010170wmg.0 for ; Fri, 12 Jul 2019 06:36:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=9idr00AAq53w+ScA3a3Otywee0XUbZRR3G32MZ6ddgc=; b=rrinZwxjCrixGLmn9u2vm4EGAu4GWVPbUff0j0ArusFYG/pcHY5OQJYglFKL77Vk1I warZcvi+2FsKiv8zHl1SZg78MC9vH5B6pZuVjY7ZfHHMAFVsTONuYEQTyWX8Q2VgJrzs I/y3Gb9VU5GrrDC23Snk4hsjZ5oj8XNlUqk9RfCJVZxH5lFZIiugreh3w1XoMtEo5XKv lk3ZQs7rcfLzcevIC+NV5g28Gl5pmJVBGX5J/npGYJSPamhlYc2XJxkWLw/HIxJB9sCF fxkqajzHLuHCMOlmbBz2xqsi+DD77w7KRSAUzZWk+hKkCfku3bIOSAYF7cAAEdwArS5e bujw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=9idr00AAq53w+ScA3a3Otywee0XUbZRR3G32MZ6ddgc=; b=kpakzIV/eRutpv0Asu3/rGuTZJe36FsW3zIczt0e/XwsRsn45l5sfkIgDdrzStv6jl haMRTa5/93W+YpBhHdsS8Hx8dcFPxIwmdfi3Daxo9lKyPzWZfbgMVLP5SFfA3/RYzuT8 ++3Ic4clXNvwNSBIMsGimagXmPhCWCEqTrG6sbMm5oEkJE9Bj6GQK+Q4j0VZ+XKntZCG JEUCQzsj52Ws+YGL5TrLkTCP3R/bCfKx9GX6ii929NeWcHbj6En9hTq0nlkttW0DO/60 qdq1hQ0h8mNnt8EOc1UYhPFk7xxnL+uaqMKPVuyemr296t84bjpfGr/1KeJKrK3wan+O pTCA== X-Gm-Message-State: APjAAAWyIwotwS6KDmhXTlAknFYpB9AOvQXhYAabE9Y6TJ2BYp/rCnlb tEDZ6UoW4Val80hUV1FIn2cusD2sGeOb6uyhUF8LjDRq X-Google-Smtp-Source: APXvYqw4aMo1MkEg7BVGnwxAXem5+HthReWIVqAr9DKEFo2XnMUWbm1BNO6biFcf1jZipnQMyrIa2B2DexkK5IjLVqE= X-Received: by 2002:a7b:cc04:: with SMTP id f4mr10188043wmh.125.1562938562204; Fri, 12 Jul 2019 06:36:02 -0700 (PDT) MIME-Version: 1.0 References: <5d8baf80-4fb3-221f-5ab4-e98a838f63e1@cobb.uk.net> <7766d592-525e-67fa-5db0-bcfff17fbf83@oracle.com> In-Reply-To: <7766d592-525e-67fa-5db0-bcfff17fbf83@oracle.com> From: Patrik Lundquist Date: Fri, 12 Jul 2019 15:35:50 +0200 Message-ID: Subject: Re: "btrfs: harden agaist duplicate fsid" spams syslog To: Anand Jain Cc: Graham Cobb , Btrfs BTRFS , calestyo@scientia.net Content-Type: text/plain; charset="UTF-8" Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Fri, 12 Jul 2019 at 14:48, Anand Jain wrote: > I am unable to reproduce, I have tried with/without dm-crypt on both > oraclelinux and opensuse (I am yet to try debian). I'm using Debian testing 4.19.0-5-amd64 without problem. Raid1 with 5 LUKS disks. Mounting with the UUID but not(!) automounted. Running "btrfs device scan --all-devices" doesn't trigger the fsid move. $ sudo btrfs fi show /raid/ Label: 'btrfs_pool' uuid: 4242423a-990c-4650-b615-14fe009b0edd Total devices 5 FS bytes used 7.85TiB devid 1 size 7.28TiB used 5.85TiB path /dev/mapper/sdb1_crypt devid 2 size 1.82TiB used 1.44TiB path /dev/mapper/sda1_crypt devid 3 size 1.82TiB used 1.34TiB path /dev/mapper/sdc1_crypt devid 4 size 5.46TiB used 4.98TiB path /dev/mapper/sdd1_crypt devid 5 size 2.73TiB used 2.25TiB path /dev/mapper/sdf1_crypt $ ll /dev/dm-* brw-rw---- 1 root disk 254, 0 jul 9 15:08 /dev/dm-0 brw-rw---- 1 root disk 254, 1 jul 9 15:08 /dev/dm-1 brw-rw---- 1 root disk 254, 2 jul 9 15:08 /dev/dm-2 brw-rw---- 1 root disk 254, 3 jul 9 15:08 /dev/dm-3 brw-rw---- 1 root disk 254, 4 jul 9 15:08 /dev/dm-4 $ ll /dev/mapper/ total 0 drwxr-xr-x 2 root root 160 jul 9 15:08 ./ drwxr-xr-x 18 root root 3640 jul 10 08:16 ../ crw------- 1 root root 10, 236 jul 9 15:08 control lrwxrwxrwx 1 root root 7 jul 9 15:08 sda1_crypt -> ../dm-0 lrwxrwxrwx 1 root root 7 jul 9 15:08 sdb1_crypt -> ../dm-1 lrwxrwxrwx 1 root root 7 jul 9 15:08 sdc1_crypt -> ../dm-2 lrwxrwxrwx 1 root root 7 jul 9 15:08 sdd1_crypt -> ../dm-3 lrwxrwxrwx 1 root root 7 jul 9 15:08 sdf1_crypt -> ../dm-4