Bug#858162: /bin/systemctl: systemctl rescue hangs system cold if desktop session is active

[Michael Biebl]

Am 20.03.2017 um 01:21 schrieb Nathan Dorfman:
> Yes, in both cases! 

Ok, good to know. This means we are on the right track.


As if the Xorg errors aren't relevant. Could it be
> the plymouth
> error? The plymouth package wasn't installed by default; was it supposed
> to be?

Nope the plymouth error is a total red herring.
As this seems to confuse a lot of people, I've just cherry-picked
https://anonscm.debian.org/cgit/pkg-systemd/systemd.git/commit/?h=stretch&id=cb49b88ff2a2e

The relevant bits are in the journal log
> Mar 19 20:09:08 stretch systemd[1]: Stopped Login Service.


[and later]

> Mar 19 20:09:08 stretch /usr/lib/gdm3/gdm-x-session[970]: (II) systemd-logind: releasing fd for 13:69
> Mar 19 20:09:08 stretch /usr/lib/gdm3/gdm-x-session[970]: (EE) systemd-logind: failed to release device: Connection was disconnected before a reply was received
> Mar 19 20:09:08 stretch /usr/lib/gdm3/gdm-x-session[970]: (II) UnloadModule: "libinput"
> Mar 19 20:09:08 stretch /usr/lib/gdm3/gdm-x-session[970]: (II) systemd-logind: releasing fd for 13:67
> Mar 19 20:09:08 stretch /usr/lib/gdm3/gdm-x-session[970]: (EE) systemd-logind: failed to release device: Connection is closed
> Mar 19 20:09:08 stretch /usr/lib/gdm3/gdm-x-session[970]: (WW) xf86CloseConsole: KDSETMODE failed: Input/output error
> Mar 19 20:09:08 stretch /usr/lib/gdm3/gdm-x-session[970]: (WW) xf86CloseConsole: VT_GETMODE failed: Input/output error
> Mar 19 20:09:08 stretch /usr/lib/gdm3/gdm-x-session[970]: (WW) xf86CloseConsole: VT_ACTIVATE failed: Input/output error
> Mar 19 20:09:08 stretch /usr/lib/gdm3/gdm-x-session[970]: (EE) systemd-logind: ReleaseControl failed: Connection is closed

I'm not quite sure yet how this can be fixed.
Maybe systemd-logind can forcefully release all devices it handed out to
Xorg/Wayland when it is stopped.

Or systemd-logind is not stopped when isolating to a different target.

This most likely needs involvement of upstream.

-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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