Bug#924199: Removing an LVM snapshot logs `dmsetup info` error

[Christian Kastner]

Package: udev
Version: 241-1
Severity: minor

Removing an LVM snapshot logs an error. Steps to reproduce:

    # lvcreate --snapshot --size 500M --name testsnap $SOMEVOLUME
    # lvremove --force testsnap

    # journalctl -n 1
    systemd-udevd[21406]: Process '/sbin/dmsetup info -j 254 -m 14 -c --nameprefixes --noheadings --rows -o name,uuid,suspended' failed with exit code 1.

I discovered this in stretch when upgrading systemd/udev to the 241-1
backport, but I could reproduce this in unstable as well. This was not
the case with the previous 239-12 backport.

Regards,
Christian