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  1. Qt for Python
  2. PYSIDE-3069

Segmentation Fault with QGraphicsScene/QGraphicsView and QComboBox

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Details

    • Bug
    • Resolution: Fixed
    • Not Evaluated
    • 6.9.0, 6.9.1, 6.10.0
    • 6.8.3
    • PySide
    • None
    • Python 3.9
    • Windows
    • e55bad3c1 (dev), 7bfbf1e58 (6.9), f81fb9ee8 (dev), e47253b24 (6.9), 6f996ff34 (dev), e2578d150 (6.9)

    Description

      When interacting with a QComboBox inside a QGraphicsScene using a custom QGraphicsView, changing the selected item causes segmentation fault with Python.

       

      I have the WinDbg crash log here:

      (503c.7b0c): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
Qt6Core!QObject::objectName+0x35:
00007ff9c951e1f5 488b4868 mov rcx,qword ptr [rax+68h] ds:0000000000000068=????????????????

       

      I have produced a minimal example below:

      main_seg.py

      Attachments

        1. main_seg.py
          2 kB
          tugay solmaz
        2. pyside3069_stack.txt
          64 kB
          Friedemann Kleint
        3. pyside3069_valgrind.txt
          33 kB
          Friedemann Kleint
        4. pyside3069_log.txt
          3 kB
          Friedemann Kleint
        5. pyside3069_5.py
          4 kB
          Friedemann Kleint
        6. pyside3069.py
          4 kB
          Friedemann Kleint

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-1887 QGraphicsItemGroup childItems() method returns empty list

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-86 reimplementing QGraphicsObject.itemChange causes problems

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          resulted in

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-3115 REG->6.9.1: QGraphicsObject.parentItem() returns None when overriding QGraphicsObject.itemChange() of the child

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: PYSIDE-3069
          # Subject Branch Project Status CR V
          641882,6 Fix crash retrieving a QGraphicsProxyObject from QVariant dev pyside/pyside-setup Status: MERGED +2 0
          641887,4 shiboken6: Rephrase documentation of the default-superclass attribute dev pyside/pyside-setup Status: MERGED +2 0
          642278,2 shiboken6: Rephrase documentation of the default-superclass attribute 6.9 pyside/pyside-setup Status: MERGED +2 0
          644325,2 Fix crash retrieving a QGraphicsProxyObject from QVariant 6.9 pyside/pyside-setup Status: MERGED +2 0
          651202,1 WIP: Revert "Fix crash retrieving a QGraphicsProxyObject from QVariant" dev pyside/pyside-setup Status: ABANDONED -2 0
          651285,3 Fix QVariant conversion of Python classes inheriting QGraphicsProxyObject dev pyside/pyside-setup Status: MERGED +2 0
          651347,3 Fix QVariant conversion of Python classes inheriting QGraphicsProxyObject 6.9 pyside/pyside-setup Status: MERGED +2 0

          Activity

            People

              crmaurei Cristian Maureira-Fredes
              deahran tugay solmaz
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              Dates

                Created:
                Updated:
                Resolved: