https://bugzilla.redhat.com/show_bug.cgi?id=1140405
--- Comment #2 from Toshio Ernie Kuratomi a.badger@gmail.com --- Created attachment 936327 --> https://bugzilla.redhat.com/attachment.cgi?id=936327&action=edit Some systemctl status -l output
here's a copy and paste of some runs of systemctl status -l while I was still debugging this. You can see that docker starts up and by 59s it's invoked mkfs.ext4 -E nodiscard,lazy_itable_init=0,lazy_journal_init=0 /dev/mapper/docker-253:2-7757935-base
At 1min 26s, the same mkfs is still running. Sometime after that, systemd has terminated that docker daemon and tried to start a new one.