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  1. Qt
  2. QTBUG-21805

QPA: Clean shutdown (no caches, no reachable memory) of Qt to easily spot memory leaks

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P3: Somewhat important P3: Somewhat important
    • None
    • 5.0.0
    • GUI: Window management
    • None

      Currently starting a simple application and closing it (e.g. the syntaxhighlighter example) will show memory leaks/reachable memory in the valgrind analysis. This is due some bugs but also due different caches of Qt (font, pixmap).

      It would be good for plugin creator and application designers to have Qt shutdown without any leak/still reachable memory.

        1.
        		 ~QAnimationDriver will (re)create the QUnifiedTimer... Sub-task Closed Unassigned
        2.
        		 QPixmapCache::clear should be called on exit Sub-task Closed Unassigned
        3.
        		 FontDatabase is leaked by many plugins (e.g. xcb, directfb) Sub-task Open Unassigned
        4.
        		 EventDispatcher is leaked, deleting it will cause a crash Sub-task Open Unassigned
        5.
        		 The fontdatabase is leaking something (the fontengine?) Sub-task Open Unassigned
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            Unassigned Unassigned
            holger Holger Freyther
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              Created:
              Updated:

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