Hallöchen!

Alexander Wetzel writes:

> I have a strange problem with btrfs send/receive.  While I can
> create incremental snaphosts but when I try to restore them I
> reproducible get:
>
>> At snapshot 2021-02-20-TEMP
>> ERROR: clone: did not find source subvol

I observe the same thing regularly (but not every time) and logged
it for a couple of weeks, using kernel 5.8.0 (Ubuntu 20.04) for send
and receive, and btrfs-progs v5.4.1.  I use send/receive to sync
large VirtualBox images between my two laptops and a server.

I observed:

- UUID and Receive UUID on both sides match the same way, both if
  its working or if the error occurs.  (I.e., Receive UUID on one
  side matches UUID on the other side, which has no Receive UUID.)

- The “Generation” and “Gen at creation” never match, not amongst
  each other, and not on sending and receiving side.

- I *seem* to suffer no data loss due to it.

I am willing to log further things, or test things.

Regards,
Torsten.

-- 
Torsten Bronger

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