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Date:   Tue, 5 Apr 2022 18:14:43 -0700
From:   Marc MERLIN <marc@merlins.org>
To:     Josef Bacik <josef@toxicpanda.com>
Cc:     "linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Re: Rebuilding 24TB Raid5 array (was btrfs corruption: parent
 transid verify failed + open_ctree failed)
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On Tue, Apr 05, 2022 at 09:08:32PM -0400, Josef Bacik wrote:
> > Yeah I'm just a dumbass, try again please. Thanks,

You've kindly given me around 20 fixes/patches in barely a day on a
filesystem that is not local to you :)

> Also keep in mind this isn't the final fix, this is the pre-repair so
> hopefully fsck can put the rest of it back together.  Thanks,

Ack.
It seems to work better or at least I got no output as of right now with
more runtime than last time. It'll likely run overnight and I'll report
tomorrow, thanks.

gargamel:/var/local/src/btrfs-progs-josefbacik# ./btrfs-find-root -o 1 /dev/mapper/dshelf1a 2>&1 |tee /tmp/outn
parent transid verify failed on 22216704 wanted 1600938 found 1602177
parent transid verify failed on 22216704 wanted 1600938 found 1602177
parent transid verify failed on 22216704 wanted 1600938 found 1602177
FS_INFO IS 0x557e9cc375f0
parent transid verify failed on 13577821667328 wanted 1602089 found 1602242
parent transid verify failed on 13577821667328 wanted 1602089 found 1602242
parent transid verify failed on 13577821667328 wanted 1602089 found 1602242
parent transid verify failed on 13577821667328 wanted 1602089 found 1602242
parent transid verify failed on 13577821667328 wanted 1602089 found 1602242
parent transid verify failed on 13577821667328 wanted 1602089 found 1602242
Couldn't find the last root for 4
Couldn't setup device tree
FS_INFO AFTER IS 0x557e9cc375f0

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