Comment # 7 on bug 1175850 from Fabian Vogt

The last few lines are:

Nov 13 12:29:00 AP17L systemd[1]: systemd-journal-flush.service: About to
execute: /usr/bin/journalctl --smart-relinquish-var
Nov 13 12:29:00 AP17L systemd[1]: systemd-journal-flush.service: Forked
/usr/bin/journalctl as 2027
Nov 13 12:29:00 AP17L systemd[1]: systemd-journal-flush.service: Changed exited
-> stop
Nov 13 12:29:00 AP17L systemd[1]: Stopping Flush Journal to Persistent
Storage...
Nov 13 12:29:00 AP17L systemd[2027]: systemd-journal-flush.service: Executing:
/usr/bin/journalctl --smart-relinquish-var
Nov 13 12:29:00 AP17L systemd[1]: systemd-journald.service: Got notification
message from PID 674 (FDSTORE=1)
Nov 13 12:29:00 AP17L systemd[1]: systemd-journald.service: Added fd 21 (n/a)
to fd store.

So it seems like systemd-journald.service doesn't reach stopped for some
reason.
Reassigning to systemd, to provide some ideas.