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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8154CC433F5 for ; Wed, 11 May 2022 18:01:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346021AbiEKSBS (ORCPT ); Wed, 11 May 2022 14:01:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39338 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345992AbiEKSBQ (ORCPT ); Wed, 11 May 2022 14:01:16 -0400 X-Greylist: delayed 61 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Wed, 11 May 2022 11:01:13 PDT Received: from libero.it (smtp-33.italiaonline.it [213.209.10.33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8584C4FC5F for ; Wed, 11 May 2022 11:01:12 -0700 (PDT) Received: from [192.168.1.27] ([78.12.14.90]) by smtp-33.iol.local with ESMTPA id oqd5npMvHtMz4oqd5n7EVB; Wed, 11 May 2022 20:00:08 +0200 x-libjamoibt: 1601 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=libero.it; s=s2021; t=1652292008; bh=VdShixegbtXeUU2Zn4mVCL5DrvBXVQNiTGLFRYacw9Q=; h=From; b=ZMvKsAMJbak8RHNMDVMAK61g8tduwmvIUp1vlQERojUOdf7HMmWMSTWfD/dvTJPAv vgPGMcu9YK1UTwN4thivPYC9zsTXI8+Gzapkhokk1Y0kqfA3fjV5eoaCZzn/FYL8Tu 9FI+DG3FjCDdAsgvUTAx4csGrD0minjX8TSh+m1WEuAiinuGxlY6YBoTpkV4ouWXnf cFzhGXQuWWaT5BRxbz7MAbTnspXC5CWsiyDJsGEPJus4DgNpjQ6gZFS8oSsi7Dmmp4 1NdbcroekE3rsDJd6hYaYkyTLdl3VKXszp3LKceB7I4lxoOZ68yPHKeimp78Al84ao MuMK1axhonnlw== X-CNFS-Analysis: v=2.4 cv=RvwAkAqK c=1 sm=1 tr=0 ts=627bf9a8 cx=a_exe a=tzWkov1jpxwUGlXVT4HyzQ==:117 a=tzWkov1jpxwUGlXVT4HyzQ==:17 a=IkcTkHD0fZMA:10 a=hw2TasknAAAA:8 a=RLTRqU1dAdJ7KQOaySoA:9 a=QEXdDO2ut3YA:10 a=MzwtZN9ZPDPljpYX1quu:22 Message-ID: <6e182895-9998-cf39-04e4-9542d79fc81d@libero.it> Date: Wed, 11 May 2022 20:00:07 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Reply-To: kreijack@inwind.it Subject: Re: Rebuilding 24TB Raid5 array (was btrfs corruption: parent transid verify failed + open_ctree failed) Content-Language: en-US To: Josef Bacik , Marc MERLIN Cc: linux-btrfs References: <20220510164448.GI12542@merlins.org> <20220510211507.GJ12542@merlins.org> <20220511000815.GK12542@merlins.org> <20220511014827.GL12542@merlins.org> <20220511150319.GM29107@merlins.org> <20220511160009.GN12542@merlins.org> From: Goffredo Baroncelli In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CMAE-Envelope: MS4xfFsXdT2dQXINecmdA20Y+GoczNrlF5Qe6px7XW1FSbNAtrnCHTUqcrFCAqnYPKvF87E6zPMye7lRNJ7vscWOJp9ZDb/+pUsPMxDtx8byOI+s1SnIyM6j tmejyNtvB4FhNL1Pn7W9AKq0N8NAcEU2EVfUw4dQRQzqCnU4CmKFH6kMYT/8TfNyqGBbQKq0irlVV6rtU2Pv3uasMa78n7t1/TBY+32+6WGtygVHyQ2IHdF1 ldmGXCL5EunukV82myaBjw== Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On 11/05/2022 18.05, Josef Bacik wrote: > On Wed, May 11, 2022 at 12:00 PM Marc MERLIN wrote: >> >> On Wed, May 11, 2022 at 11:21:37AM -0400, Josef Bacik wrote: [...] Hi Joseph, Marc, I looked back in the thread but I was unable to find if it was discussed. Even if the size of the FS is quite big, I am wondering if does make sense that Marc send to Josef the metadata of the filesystem, to speed up the recover. I am sure that btrfs-image was considered but then discarded (due to a risk of leaking of sensible information ? or may be the image would be too big ?); It would be interested to know the reasons; may be that even if btrfs-image doesn't fit this particular case in the current form, it can be extended to handle a case like the Marc one.. BR -- gpg @keyserver.linux.it: Goffredo Baroncelli Key fingerprint BBF5 1610 0B64 DAC6 5F7D 17B2 0EDA 9B37 8B82 E0B5