We are seeing a problem that occurs ~5% of the time when rebooting
CentOS 7.7 where systemd gets a 'Connection timed out' to D-Bus just
after the D-Bus service starts - from 'journalctl -x' :
...
Jan 21 16:09:59 linux7-7.mpc.local systemd[1]: Started D-Bus System
Message Bus.
-- Subject: Unit dbus.service has finished start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit dbus.service has finished starting up.
--
-- The start-up result is done.
Jan 21 16:10:24 linux7-7.mpc.local systemd[1]: Failed to register match
for Disconnected message: Connection timed out
Jan 21 16:10:24 linux7-7.mpc.local systemd[1]: Failed to initialize
D-Bus connection: Connection timed out
...
This then has a knock-on effect that causes other services to fail - e.g.
-- Unit gdm.service has begun starting up.
Jan 21 16:10:39 linux7-7.mpc.local dbus[817]: [system] Activating
systemd to hand-off: service name='org.freedesktop.login1'
unit='dbus-org.freedesktop.login1.service'
Jan 21 16:10:50 linux7-7.mpc.local dbus[817]: [system] Failed to
activate service 'org.freedesktop.systemd1': timed out
Jan 21 16:10:50 linux7-7.mpc.local systemd-logind[1221]: Failed to
enable subscription: Failed to activate service
'org.freedesktop.systemd1': timed out
Jan 21 16:10:50 linux7-7.mpc.local systemd-logind[1221]: Failed to fully
start up daemon: Connection timed out
Jan 21 16:10:50 linux7-7.mpc.local systemd[1]: systemd-logind.service:
main process exited, code=exited, status=1/FAILURE
Jan 21 16:10:50 linux7-7.mpc.local systemd[1]: Failed to start Login
Service.
-- Subject: Unit systemd-logind.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit systemd-logind.service has failed.
--
-- The result is failed.
Whatever the issue is, it appears that polkit might be involved - if we
restart the polkit service, things appear to return to normal (e.g. gdm
starts up etc)
We can't find any similar reports of this happening elsewhere with
CentOS 7.7 - but we were wondering if anyone else had come across a
problem like this?
Thanks
James Pearson
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