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  1. Qt
  2. QTBUG-76523

Crash on OSX when using QtQuick FileDialog with set AA_PluginApplication flag

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P1: Critical
    • Resolution: Done
    • Affects Version/s: 5.12.3
    • Fix Version/s: 5.12.5, 5.14.0 Alpha
    • Component/s: Quick: Dialogs
    • Labels:
      None
    • Environment:
      See crashlog.txt for all system details. Using XCode 10.2.1
    • Platform/s:
      macOS
    • Commits:
      aef0fba3c550915318db5b350892f558ec7e77ff (qt/qtbase/5.12)

      Description

      The attached QtCreator project startet from a new, empty Qt Quick application.

      In the main.cpp we added

      QGuiApplication::setAttribute(Qt::AA_PluginApplication);

      In main.qml, we added

      import QtQuick.Dialogs 1.3
      ...
      FileDialog{}

      When we run this project we see a crash while quitting the application in [QCocoaMenuLoader dealloc]   ->  see crashlog.txt .

      When we remove the line

      QGuiApplication::setAttribute(Qt::AA_PluginApplication);

      everything is fine. If we remove the FileDialog from main.qml, the crash is gone,too.

       

      The context, where we observe the same crash is in an audio plugin, done with QtQuick. Here we set

      QGuiApplication::setAttribute(Qt::AA_PluginApplication); QGuiApplication::setAttribute(Qt::AA_DontUseNativeMenuBar); 

      Quitting the plugin's host application causes the same crash. In the plugin if we

      • remove the two setAttribute() calls, the host always crashes in [QCocoaMenuLoader dealloc] 
      • remove the FileDialog and do set the two attribute, the host quits fine

        Attachments

        For Gerrit Dashboard: QTBUG-76523
        # Subject Branch Project Status CR V

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            People

            Assignee:
            tpochep Timur Pocheptsov
            Reporter:
            frank2525 Frank Deinzer
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              Dates

              Created:
              Updated:
              Resolved:

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