Bug#793116:

Wed Jul 22 07:41:42 BST 2015

Here's systemd-analyze dump right after a crash from tonight.

It shows that the USR1 that kills journald is the one that is
scheduled to be sent by systemd-journal-flush.service. Running

/bin/systemctl kill --kill-who=main --signal=SIGUSR1 systemd-journald.service

manually, however, does *not* reliably kill journald.
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