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  1. Qt for Python
  2. PYSIDE-2676

Segfault on Linux when using mne_qt_browser (Python 3.12/meta classes)

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Details

    • Bug
    • Resolution: Fixed
    • Not Evaluated
    • 6.7.1, 6.8.0
    • 6.7
    • PySide
    • None
    • Linux, Python 3.12.2, PySide 6.7.0
    • Linux/Wayland, Linux/X11
    • adb609270 (dev), 18dd2995b (6.7), b782c3054 (dev), e9807e1dc (6.7)

    Description

      The following example results in a segfault when using PySide ≥ 6.7.0:

      import PySide6
      from mne_qt_browser import _pg_figure

      Note that this example requires the mne-qt-browser package (in addition to PySide6).

      I think what's happening here is that the second import also tries to create a Qt app, which apparently produces a segfault with PySide ≥ 6.7.0. The example works with PySide 6.6.3 (and possibly also previous versions). Interestingly, PySide 6.6.3.1 does not work either, but at least it does not segfault.

      Attachments

        1. pyside2676_diag.diff
          4 kB
        2. pyside2676_sanitizer.txt
          10 kB
        3. pyside2676.py
          0.3 kB
        4. stacktrace.txt
          11 kB

        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-2746 Regression: PySide 6.7 segfaulting with metaclass and asyncio

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-2674 isinstance / inheritance broken depending on import order when using star import

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-2683 Reg->6.7.0: GridCal no longer working

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          For Gerrit Dashboard: PYSIDE-2676
          # Subject Branch Project Status CR V
          552320,8 PEP 697: Use the new type extension provision, amended dev pyside/pyside-setup Status: MERGED +2 0
          557270,2 PEP 697: Use the new type extension provision, amended 6.7 pyside/pyside-setup Status: MERGED +2 0
          558653,3 PEP 697: Use the new type extension provision, final dev pyside/pyside-setup Status: MERGED +2 +1
          558896,2 PEP 697: Use the new type extension provision, final 6.7 pyside/pyside-setup Status: MERGED +2 0

          Activity

            People

              ctismer Christian Tismer
              cle1109 Clemens Brunner
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              Dates

                Created:
                Updated:
                Resolved:

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