Subject: bug#29674: Ceph creates Btrfs subvolumes on Btrfs during tests.

From: [email-masked] (Ludovic Courtès)
Date: Tue, 12 Dec 2017 13:52:32 +0100

Hi Rutger,

Rutger Helling <[email-masked]> skribis:

> I was surprised to learn that Ceph creates Btrfs subvolumes during its
> tests.
> This is problematic because on Btrfs regular users can create
> subvolumes, but they cannot delete them.
> This means I had to manually delete the following subvolumes as root:
>
> ID 1744 gen 819598 top level 257 path
> tmp/guix-build-ceph-12.0.2.drv-0/td/t-7201/dev/osd0/current
> ID 1745 gen 819598 top level 257 path
> tmp/guix-build-ceph-12.0.2.drv-0/td/t-7201/dev/osd0/snap_1

Does that mean that wiping out /tmp/guix-build-ceph-*, as happens when
build finishes, isn’t enough to get rid of those volumes?

Ludo’.