Bug#906750: gnome-control-center: Does not start. Missing dependency avahi-daemon

[k0r155ov8nx at mailbox.org]

> Please try to repeat this crash (remove avahi-daemon) with an English
> locale (LC_ALL=C.UTF-8), and get a backtrace:
> https://wiki.debian.org/HowToGetABacktrace
> 
> I couldn't reproduce this crash myself on a minimal virtual machine,
> because I get a different crash instead, which is not fixed by installing
> avahi-daemon (I've opened a separate bug). On my (non-minimal) laptop,
> I couldn't trigger this crash by removing avahi-daemon.
> 
> It might also help to set the environment variable G_MESSAGES_DEBUG=all
> before running gnome-control-center: this would result in more messages
> being printed.

Removing (purging) avahi-daemon and rebooting does not trigger this bug
anymore and gnome-control-senter starts up fine. Selecting "Sharing" crashes
gnome-control-center and the bug happens again.

Using an englisch locale does not help, the "error word" is still german, but
"Speicherzugriffsfehler" means "segmentation fault".

Using G_MESSAGES_DEBUG=all gives me a better description:

foo at bar:~$ G_MESSAGES_DEBUG=all gnome-control-center -v
(gnome-control-center:3226): cc-object-storage-DEBUG: 19:00:55.068: Initializing object storage
(gnome-control-center:3226): Gtk-DEBUG: 19:00:55.068: Connecting to session manager
(gnome-control-center:3226): network-cc-panel-DEBUG: 19:00:55.086: Monitoring NetworkManager for Wi-Fi devices
(gnome-control-center:3226): cc-object-storage-DEBUG: 19:00:55.105: Adding object NMClient (CcObjectStorage::nm-client → 0x5590b5dc3d00) to the storage
(gnome-control-center:3226): network-cc-panel-DEBUG: 19:00:55.105: Wi-Fi panel visible: no
(gnome-control-center:3226): wacom-cc-panel-DEBUG: 19:00:55.106: Wacom panel visible: no
** (gnome-control-center:3226): DEBUG: 19:00:55.115: Not allowed to change the hostname
(gnome-control-center:3226): cc-window-DEBUG: 19:00:55.272: Time to open panel 'Freigabe': 0,160000s
19:00:55.0332          sharing-cc-panel:    DEBUG: Error calling GetHostNameFqdn: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Avahi was not provided by any .service files
Speicherzugriffsfehler

'Freigabe' means 'Sharing'

I don't know where I can get the package with debugging symbols for gnome-control-center.
gdb just shows "Reading symbols from gnome-control-center...(no debugging symbols found)...done."
and there is no gnome-control-center-dbg package (or any gnome related package)


At least there is some more info with G_MESSAGES_DEBUG=all, so this may help a little.


Thank you for your time and work.