Dear Maintainer,
* What led up to the situation?
Running Jessie with XFCE-Desktop and the netload-plugin in the panel.
Right-clicking on the panel-icon opens the properties/settins box.
On closing the settings-box (even if nothing has been changed) generates 4 Glib-CRITICAL messages.
(xfce4-netload-plugin:2733): GLib-CRITICAL **: Source ID 5 was not found when attempting to remove it
(xfce4-netload-plugin:2733): GLib-CRITICAL **: Source ID 5 was not found when attempting to remove it
(xfce4-netload-plugin:2733): GLib-CRITICAL **: Source ID 5099 was not found when attempting to remove it
(xfce4-netload-plugin:2733): GLib-CRITICAL **: Source ID 5099 was not found when attempting to remove it
(xfce4-netload-plugin:2733): GLib-CRITICAL **: Source ID 5101 was not found when attempting to remove it
(xfce4-netload-plugin:2733): GLib-CRITICAL **: Source ID 5101 was not found when attempting to remove it
* What exactly did you do (or not do) that was effective (or
ineffective)?
I reported this issue against libglib2.0-0, see here:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=709197
* What was the outcome of this action?
The maintainer Simon McVittie replied and suggests that it is a bug in the netload-plugin:
library that they both use, or it could be a similar but unrelated bug
in xfce4-netload-plugin code.
* What outcome did you expect instead?
Not running the risk to get a valid "Suorce ID" removed.
As Simon McVittie states:
... but it is actually a potentially serious bug, because if source ID 7763 had
been reused for something else, that something else would have been
removed instead.