Since http://cgit.freedesktop.org/systemd/systemd/commit/?id=874bc134ac6504c45e94174e37af13ff21a6bfe2 some messages are missing in the journal - gnome-session should send a tagged message (see https://git.gnome.org/browse/gnome-session/tree/gnome-session/gsm-manager.c#n1363), tracked by Gnome Continuous. In 99% of cases this message is not in journal. Not sure if I fetched systemd's debug output correctly, but it didn't list anything about 'too big entry'
I looked at the commit again, and I don't see anything suspicious... Can you start systemd-journald in debug mode: 1. create file # /etc/systemd/system/systemd-journald.service.d/debug.conf [Service] Environment=SYSTEMD_LOG_LEVEL=debug 2. reload systemctl daemon-reload systemctl restart systemd-journald This should allow you to capture log messages from journald.
Fixed in git a174f94d529c7ae9be589867308b669ec9b4dcc0.
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