From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-btrfs-owner@kernel.org>
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 F1A39C43334
	for <linux-btrfs@archiver.kernel.org>; Mon, 13 Jun 2022 21:09:54 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1351775AbiFMVJx (ORCPT <rfc822;linux-btrfs@archiver.kernel.org>);
        Mon, 13 Jun 2022 17:09:53 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39022 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1351789AbiFMVJ3 (ORCPT
        <rfc822;linux-btrfs@vger.kernel.org>);
        Mon, 13 Jun 2022 17:09:29 -0400
Received: from mail1.merlins.org (magic.merlins.org [209.81.13.136])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB6402725
        for <linux-btrfs@vger.kernel.org>; Mon, 13 Jun 2022 13:46:49 -0700 (PDT)
Received: from merlin by mail1.merlins.org with local (Exim 4.94.2 #2)
        id 1o0qxT-0007Gu-U5 by authid <merlin>; Mon, 13 Jun 2022 13:46:47 -0700
Date:   Mon, 13 Jun 2022 13:46:47 -0700
From:   Marc MERLIN <marc@merlins.org>
To:     Josef Bacik <josef@toxicpanda.com>
Cc:     linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: Rebuilding 24TB Raid5 array (was btrfs corruption: parent
 transid verify failed + open_ctree failed)
Message-ID: <20220613204647.GO22722@merlins.org>
References: <20220608213845.GH22722@merlins.org>
 <CAEzrpqejNj3qTtTJ7Godb0VMsxKt094vMw+iT4XR1B9aayO7Nw@mail.gmail.com>
 <20220609030128.GJ22722@merlins.org>
 <CAEzrpqfy-sf_xGMohK1EVgtP58tLTso6e7s9iyd3t5XnM3zjCg@mail.gmail.com>
 <20220609211511.GW1745079@merlins.org>
 <CAEzrpqfhUMDjkaJaa4ZugSuKOWpLyTVJ8nLu9nep5n_qzo-PiA@mail.gmail.com>
 <20220610191156.GB1664812@merlins.org>
 <CAEzrpqfEj3c5wodYzibBXg34NxtXmQCB60=MtD+Nic2PN8i5bQ@mail.gmail.com>
 <20220613175651.GM1664812@merlins.org>
 <CAEzrpqdrRJGKPe8C1VvbyPaV3iEDtD1kB_oMiUP=bCs37NfSZw@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CAEzrpqdrRJGKPe8C1VvbyPaV3iEDtD1kB_oMiUP=bCs37NfSZw@mail.gmail.com>
X-Sysadmin: BOFH
X-URL:  http://marc.merlins.org/
User-Agent: Mutt/1.10.1 (2018-07-13)
X-SA-Exim-Connect-IP: <locally generated>
X-SA-Exim-Mail-From: marc@merlins.org
Precedence: bulk
List-ID: <linux-btrfs.vger.kernel.org>
X-Mailing-List: linux-btrfs@vger.kernel.org

On Mon, Jun 13, 2022 at 02:29:30PM -0400, Josef Bacik wrote:
> Alright so we have the missing csum things, which can be fixed with
> 
> btrfs rescue init-csum-tree <device>

(gdb) run rescue init-csum-tree /dev/mapper/dshelf1
Starting program: /var/local/src/btrfs-progs-josefbacik/btrfs rescue init-csum-tree /dev/mapper/dshelf1
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
FS_INFO IS 0x555555652bc0
Couldn't find the last root for 8
FS_INFO AFTER IS 0x555555652bc0
processed 0 of 21907435520 possible data bytes, 0%
Program received signal SIGSEGV, Segmentation fault.
0x00005555555e351a in record_csums_eb (eb=0x5555556f1890, processed=processed@entry=0x7fffffffdbe8) at ./kernel-shared/ctree.h:1762
1762    BTRFS_SETGET_FUNCS(inode_flags, struct btrfs_inode_item, flags, 64);
(gdb) bt
#0  0x00005555555e351a in record_csums_eb (eb=0x5555556f1890, processed=processed@entry=0x7fffffffdbe8) at ./kernel-shared/ctree.h:1762
#1  0x00005555555e3906 in record_csums (root=root@entry=0x5555556f15d0, processed=processed@entry=0x7fffffffdbe8) at cmds/rescue-init-csum-tree.c:292
#2  0x00005555555e3f0f in foreach_root (cb=0x5555555e38fa <record_csums>, fs_info=0x555555652bc0) at cmds/rescue-init-csum-tree.c:338
#3  btrfs_init_csum_tree (path=path@entry=0x7fffffffe1ce "/dev/mapper/dshelf1") at cmds/rescue-init-csum-tree.c:408
#4  0x00005555555d88b1 in cmd_rescue_init_csum_tree (cmd=<optimized out>, argc=<optimized out>, argv=<optimized out>) at cmds/rescue.c:102
#5  0x000055555556c17b in cmd_execute (argv=0x7fffffffdeb8, argc=2, cmd=0x555555648ce0 <cmd_struct_rescue_init_csum_tree>) at cmds/commands.h:125
#6  handle_command_group (cmd=<optimized out>, argc=2, argv=0x7fffffffdeb8) at btrfs.c:152
#7  0x000055555556c275 in cmd_execute (argv=0x7fffffffdeb0, argc=3, cmd=0x555555649cc0 <cmd_struct_rescue>) at cmds/commands.h:125
#8  main (argc=3, argv=0x7fffffffdeb0) at btrfs.c:405

-- 
"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/