gnome-panel crashed with SIGSEGV in polkit_caller_unref()

StacktraceTop:can_do (
clock_factory (applet=0x82cf5e8, iid=<value optimized out>,
panel_applet_marshal_BOOLEAN__STRING (closure=0x84550b8,
IA__g_closure_invoke (closure=0x84550b8,
bonobo_closure_invoke_va_list (closure=0x84550b8,

Thanks for your bug report. This bug has been reported to the developers of the software. You can track it and make comments here: http://bugzilla.gnome.org/show_bug.cgi?id=525758

The bug has been fixed upstream now

This bug was fixed in the package gnome-panel - 1:2.22.1-0ubuntu1

---------------
gnome-panel (1:2.22.1-0ubuntu1) hardy; urgency=low

  * New upstream version:
    Panel
    - Convert username/login to UTF-8 in logout dialog
    - Fix applet processes not quitting when the applet is removed (lp: #195915)
    Misc
    - Remove old and useless files
    - Require gweather 2.22.1
    - Don't explicitly require libxml for the weather applet anymore
    Clock Applet
    - Fix crash when there are no locations available
    - Fix locations not appearing in the preferences dialog
    - Make find location window larger
    - Handle escape to close the dialog in the time/timezone dialogs
    - Fix various issues with adding/removing locations
    - Fix crash when PolicyKit helper can't be called (lp: #208791)
    - Fix crash when closing the calendar popup when a city is blinking
      on the map (lp: #200881, ##207954)
    - Improve the blinking on the map when clicking on various locations
    - Cleanups
    - Correctly redraw the map outline on expose events
    - Fix crash when the location doesn't have coordinates (lp: #201102)
    - Fix crash when updating locations while calendar popup is not shown
      (lp: #210470)
    - Fix initial visibility of the appointments to actually follow the
      state of the expander (lp: #206118)
    - Make sure we always use data from the right country (lp: #185190)
    - Show caldav appointments in the calendar
    - Ignore dbus errors when setting the time and there's no reply on the bus
      (lp: #207890)
    - Open evolution on the right day, in all timezones (lp: #66028)
    - Fix crash when an evolution-data-server dies (lp: #122590)
    - Correctly set time, even when DST is on (lp: #208598)
    - Handle multiple locations in the same timezone in a better way
    - Fix weather tooltip to show the real temperature and the apparent
      temperature, instead of only the apparent one (lp: #188183)
    - Do not lose the weather location information when changing the
      timezone of a location (lp: #200911)
    - Don't show weather information of the last location once it has been
      removed
    - Remove empty space on the left of the clock when there's no location
      (lp: #203691)
    - Potential fix for another crash in the calendar code
    - When adding a location, make it the current one if it makes sense
  * debian/control.in:
    - updated libgweather requirement
  * debian/patches/17_expose_wm_keybindings.patch:
    - dropped, the current version has some issues and need to be rework
      during next cycle (lp: #211112)
  * debian/patches/80_from_bugzilla_use_correct_current_timezone.patch:
    - dropped, fixed in the new version

 -- Sebastien Bacher <email address hidden> Tue, 08 Apr 2008 01:47:12 +0200