Bug#896152: systemd/dbus hanging on stretch updates

[Christoph Berg]

Re: Michael Biebl 2018-04-20 <63f2e0c0-5adb-d8c2-848f-399f68cc32d0 at debian.org>
> Does systemctl status still work? If not, maybe systemd (PID 1) has
> crashed and is no longer responding to requests.

"systemctl status" was hanging as well. There was still a pid 1
process, possibly not responding. (I don't know enough about systemd
to be able to say if systemd had crashed, or dbus, or some other
component.)

> If so, I would check in the logs if you find anything related to that.

I couldn't find anything.

As my report is likely not specific enough to be actionable, please
feel free to close it. If it happens again, I'll try to follow Simon's
debugging advice and open another one.

Thanks,
Christoph
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