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Subject: Re: Backup failing with "failed to clone extents" error
To:     fdmanana@gmail.com, Darrell Enns <darrell@darrellenns.com>
Cc:     linux-btrfs <linux-btrfs@vger.kernel.org>
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From:   Andrei Borzenkov <arvidjaar@gmail.com>
Message-ID: <7a858635-2491-cccd-0a29-d1a1d0c9d313@gmail.com>
Date:   Wed, 1 Sep 2021 18:34:47 +0300
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On 01.09.2021 17:50, Filipe Manana wrote:
> On Tue, Aug 31, 2021 at 5:48 PM Darrell Enns <darrell@darrellenns.com> wrote:
>>
>> It's btrfs-progs v5.13.1. Debug logs are attached.
> 
> Ok, now I see what's going on.
> 
> Somehow you have at least two snapshots (with IDs 881 and 977 on the
> send filesystem), that have the same 'received_uuid' -
> e346e5a1-536c-8d42-ba33-c5452dec7888.
> So these snapshots were received from some other filesystem in the past.
> 

Is there any reason "btrfs receive" does not show actual id of subvolume
used as clone source in its log messages?