[Pkg-xfce-devel] Bug#790123: xfce4-netload-plugin: GLib-CRITICAL **: Source ID 5101 was not found when attempting to remove it

[Ingo]

Package: xfce4-netload-plugin
Version: 1.2.0-1
Severity: important

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:

> These messages come in blocks of 4 lines from xfce4-netload-plugin
> 1.2.0-1 when changing properties and closing the settings dialogue:
> (xfce4-netload-plugin:1679): GLib-CRITICAL **: Source ID 167 was not
> found when attempting to remove it

This is similar to the xfce4-weather-plugin one; it could be a bug in a
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.


-- System Information:
Debian Release: 8.1
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages xfce4-netload-plugin depends on:
ii  libc6               2.19-18
ii  libcairo2           1.14.0-2.1
ii  libgdk-pixbuf2.0-0  2.31.1-2+b1
ii  libglib2.0-0        2.42.1-1
ii  libgtk2.0-0         2.24.25-3
ii  libxfce4ui-1-0      4.10.0-6
ii  libxfce4util6       4.10.1-2
pn  xfce4-panel         <none>

xfce4-netload-plugin recommends no packages.

xfce4-netload-plugin suggests no packages.

-- no debconf information