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  1. Qt
  2. QTBUG-21425

QWidget(tst_qwidget) crashes often on Mac.

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    • Icon: Bug Bug
    • Resolution: Won't Do
    • Icon: P2: Important P2: Important
    • None
    • 5.0.0
    • Widgets: Widgets and Dialogs
    • None
    • Mac OS X 10.6.8 & Ubuntu Linux 10.04
    • macOS

      tst_qwidget crashes often on Mac. (qtbase/tests/auto/qwidget)
      And it warns 'BadWindow's on Linux.
      I checked it with e3990c358a5ffa0f43ab3ded018f29e468697841 (master in qt5/qtbase).

      Reason:

      QWindow's d->platformWindow(QPlatformWindow) is destroyed and created when QWindow::setScreen() is called.
      But QWidget doesn't take care of it's backing store at that time.
      So the backing store continues to use old destroyed platform window.

        1. linux.log
          15 kB
          Takumi ASAKI
        2. mac.log
          5 kB
          Takumi ASAKI
        3. trace_21425.txt
          45 kB
          Caroline Chao
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            Unassigned Unassigned
            asaki Takumi ASAKI
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              Created:
              Updated:
              Resolved:

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