[orca-list] Defunt objects causing crashes

[Francisco Javier Dorado Martínez <javier tiflolinux org>]

Hi all

I have experimented this crashes while I am doing up or down arrow
through Thunderbird's message list. After many shift + down arrow 
Thunderbird doesn't read anymore
and I have to restart Orca.
I have a 292k debug file and I can see this output in the terminal:
Traceback (most recent call last):
  File "/usr/lib/python3.4/site-packages/orca/event_manager.py", line 
274, in _dequeue
    self._processObjectEvent(event)
  File "/usr/lib/python3.4/site-packages/orca/event_manager.py", line 
609, in _processObjectEvent
    script.processObjectEvent(event)
  File "/usr/lib/python3.4/site-packages/orca/script.py", line 388, in 
processObjectEvent
    self.listeners[key](event)
  File 
"/usr/lib/python3.4/site-packages/orca/scripts/apps/Thunderbird/script.py", 
line 328, in onNameChanged
    if event.source.name == self.spellcheck.getMisspelledWord():
GLib.Error: atspi_error: The process appears to be hung. (1)


Traceback (most recent call last):
  File "/usr/lib/python3.4/site-packages/orca/event_manager.py", line 
274, in _dequeue
    self._processObjectEvent(event)
  File "/usr/lib/python3.4/site-packages/orca/event_manager.py", line 
609, in _processObjectEvent
    script.processObjectEvent(event)
  File "/usr/lib/python3.4/site-packages/orca/script.py", line 388, in 
processObjectEvent
    self.listeners[key](event)
  File 
"/usr/lib/python3.4/site-packages/orca/scripts/apps/Thunderbird/script.py", 
line 328, in onNameChanged
    if event.source.name == self.spellcheck.getMisspelledWord():
GLib.Error: atspi_error: The process appears to be hung. (1)


Traceback (most recent call last):
  File "/usr/lib/python3.4/site-packages/orca/event_manager.py", line 
274, in _dequeue
    self._processObjectEvent(event)
  File "/usr/lib/python3.4/site-packages/orca/event_manager.py", line 
609, in _processObjectEvent
    script.processObjectEvent(event)
  File "/usr/lib/python3.4/site-packages/orca/script.py", line 388, in 
processObjectEvent
    self.listeners[key](event)
  File 
"/usr/lib/python3.4/site-packages/orca/scripts/toolkits/Gecko/script.py", line 
1148, in onDocumentLoadComplete
    self.liveRegionManager.reset()
  File "/usr/lib/python3.4/site-packages/orca/liveregions.py", line 
177, in reset
    currenturi = self._script.bookmarks.getURIKey()
  File 
"/usr/lib/python3.4/site-packages/orca/scripts/toolkits/Gecko/bookmarks.py", 
line 264, in getURIKey
    uri = self._script.utilities.documentFrameURI()
  File 
"/usr/lib/python3.4/site-packages/orca/scripts/toolkits/Gecko/script_utilities.py", 
line 167, in documentFrameURI
    documentFrame = self.documentFrame()
  File 
"/usr/lib/python3.4/site-packages/orca/scripts/toolkits/Gecko/script_utilities.py", 
line 154, in documentFrame
    windows = [child for child in self._script.app]
  File 
"/usr/lib/python3.4/site-packages/orca/scripts/toolkits/Gecko/script_utilities.py", 
line 154, in <listcomp>
    windows = [child for child in self._script.app]
  File "/usr/lib/python3.4/site-packages/pyatspi/Accessibility.py", 
line 41, in Accessible_getitem
    len=self.get_child_count()
GLib.Error: atspi_error: The process appears to be hung. (1)


Traceback (most recent call last):
  File "/usr/lib/python3.4/site-packages/orca/event_manager.py", line 
274, in _dequeue
    self._processObjectEvent(event)
  File "/usr/lib/python3.4/site-packages/orca/event_manager.py", line 
609, in _processObjectEvent
    script.processObjectEvent(event)
  File "/usr/lib/python3.4/site-packages/orca/script.py", line 388, in 
processObjectEvent
    self.listeners[key](event)
  File 
"/usr/lib/python3.4/site-packages/orca/scripts/apps/Thunderbird/script.py", 
line 328, in onNameChanged
    if event.source.name == self.spellcheck.getMisspelledWord():
GLib.Error: atspi_error: The process appears to be hung. (1)


Traceback (most recent call last):
  File "/usr/lib/python3.4/site-packages/orca/event_manager.py", line 
274, in _dequeue
    self._processObjectEvent(event)
  File "/usr/lib/python3.4/site-packages/orca/event_manager.py", line 
609, in _processObjectEvent
    script.processObjectEvent(event)
  File "/usr/lib/python3.4/site-packages/orca/script.py", line 388, in 
processObjectEvent
    self.listeners[key](event)
  File 
"/usr/lib/python3.4/site-packages/orca/scripts/apps/Thunderbird/script.py", 
line 328, in onNameChanged
    if event.source.name == self.spellcheck.getMisspelledWord():
GLib.Error: atspi_error: The process appears to be hung. (1)


Traceback (most recent call last):
  File "/usr/lib/python3.4/site-packages/orca/event_manager.py", line 
274, in _dequeue
    self._processObjectEvent(event)
  File "/usr/lib/python3.4/site-packages/orca/event_manager.py", line 
609, in _processObjectEvent
    script.processObjectEvent(event)
  File "/usr/lib/python3.4/site-packages/orca/script.py", line 388, in 
processObjectEvent
    self.listeners[key](event)
  File 
"/usr/lib/python3.4/site-packages/orca/scripts/apps/Thunderbird/script.py", 
line 328, in onNameChanged
    if event.source.name == self.spellcheck.getMisspelledWord():
GLib.Error: atspi_error: The process appears to be hung. (1)

nodeLevel() - Error getting RelationSet

Take care
Regards,
Javier