[Bugs] #4889 Sugar NORM: virtual memory leak in background control panel

[Sugar Labs Bugs]

#4889: virtual memory leak in background control panel
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  Reporter:  quozl   |            Owner:
      Type:  defect  |           Status:  new
  Priority:  Normal  |        Milestone:  Unspecified
 Component:  Sugar   |          Version:  Unspecified
  Severity:  Minor   |       Resolution:
  Keywords:          |  Distribution/OS:  OLPC
Bug Status:  New     |
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Comment (by quozl):

 Agreed.  However the Background panel consumes the most memory so is
 easier to test with.  A mine canary.

 I was starting to worry that it might be the ''unusual'' way that control
 panel section views are called, in show_section_view() in
 src/jarabe/controlpanel/gui.py:

 {{{
         mod = __import__('.'.join(('cpsection', option, 'view')),
                          globals(), locals(), ['view'])
         view_class = getattr(mod, self._options[option]['view'], None)
 }}}

 But still a 175 kbyte/sec leak occurs if the background panel is modified
 to rescan and reload the images in the Gtk.ListView when the "Clear
 background" button is pressed.  See first file changed in my
 [http://dev.laptop.org/~quozl/z/1ZuDr1.txt test patch].  That's not
 closing and opening the panel.

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Ticket URL: <https://bugs.sugarlabs.org/ticket/4889#comment:8>
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