Non responsive state for systemd

[David Highley]

Twice now we have one Fedora 18 system where systemd seems to get into a
non responsive state. We are not able to get the status of any service
and we're not able to do an init 6 to restart the system.

Did notice today that a full process list showed a message about abrt
and something to the effect "nobody cared". We also see a number of
defunct processes that seem to never clear. So far the only remedy we
have found is a hard power cycle.