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Ported Qt program (Windows to linux) segmentation fault

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  • G Offline
    G Offline
    giriel
    wrote on 29 Jun 2012, 12:19 last edited by
    #1

    Hello fellow Qt developers,

    I am facing a problem with porting one of my applications from Windows to Linux.
    To be fair, I have already asked this question upon "stackoverflow":http://stackoverflow.com/questions/11172429/ported-qt-program-windows-to-linux-segmentation-fault

    But my problem was not solved.
    To explain it in short: I have a perfectly working Qt program in Windows that I want to use in Linux but this doesn't work for some reason.
    If you follow my link you will see all the details as well.

    Something that wasn't mentioned there: sometimes my program also has segmentation faults while initializing the ui.
    @ui->setupUi(this)@

    This crashes at times but not always.
    Could this random behavior be related to a bad version of Qt?

    I am really desperate for finding out why my program functions perfectly upon Windows but completely fails in Linux.

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    • A Offline
      A Offline
      anndro
      wrote on 29 Jun 2012, 14:07 last edited by
      #2

      which widgets you are using on your form?

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      • G Offline
        G Offline
        giriel
        wrote on 29 Jun 2012, 14:30 last edited by
        #3

        Quite a lot actually :
        These are the members of the ui_....h file
        @ QAction *exit_Action;
        QAction *editShortcuts_Action;
        QAction *about_Action;
        QAction *editSettings_Action;
        QWidget *centralWidget;
        QVBoxLayout *verticalLayout_2;
        QHBoxLayout *horizontalLayout_6;
        QLabel *label;
        QSpacerItem *horizontalSpacer_7;
        QLabel *nameLabel;
        QSpacerItem *verticalSpacer_4;
        QHBoxLayout *horizontalLayout_5;
        QLabel *label_2;
        QSpacerItem *horizontalSpacer_6;
        QLineEdit *ratingLineEdit;
        QSpacerItem *horizontalSpacer_5;
        QSpacerItem *verticalSpacer_3;
        QHBoxLayout *horizontalLayout_7;
        QLabel *label_3;
        QSpacerItem *horizontalSpacer_9;
        QLineEdit *skillPointsLineEdit;
        QSpacerItem *horizontalSpacer_8;
        QSpacerItem *verticalSpacer_5;
        QHBoxLayout *horizontalLayout_4;
        QSpacerItem *horizontalSpacer_3;
        QToolButton *launchETButton;
        QSpacerItem *horizontalSpacer_4;
        QSpacerItem *verticalSpacer_2;
        QHBoxLayout *horizontalLayout_3;
        QSpacerItem *horizontalSpacer;
        QGroupBox *groupBox;
        QWidget *layoutWidget;
        QVBoxLayout *verticalLayout;
        QHBoxLayout *horizontalLayout;
        QLabel *statusLabel;
        QTextBrowser *statusTextBrowser;
        QSpacerItem *verticalSpacer;
        QHBoxLayout *horizontalLayout_2;
        QLabel *lockLabel;
        QTextBrowser *lockTextBrowser;
        QSpacerItem *horizontalSpacer_2;
        QMenuBar *menuBar;
        QMenu *menuFile;
        QMenu *menuShortcuts;
        QMenu *menuHelp;
        QStatusBar *statusBar;@

        And last time it crashed at the menuBar:

        @menuBar = new QMenuBar(MainWindow);@

        Quite strange according to me :)

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        • T Offline
          T Offline
          tobias.hunger
          wrote on 29 Jun 2012, 18:37 last edited by
          #4

          I doubt anybody will be able to help you without seeing the code... I certainly can not, Sorry.

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          • G Offline
            G Offline
            giriel
            wrote on 29 Jun 2012, 18:59 last edited by
            #5

            If it could help I can post it upon git?
            It isn't such a big project but not that small either.

            Thing is those segmentation faults occur on multiple locations within the code.

            thanks already

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            • G Offline
              G Offline
              giesbert
              wrote on 1 Jul 2012, 20:08 last edited by
              #6

              without seeing mor, I guess it is a setup / initialisation problem.

              Nokia Certified Qt Specialist.
              Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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              • G Offline
                G Offline
                giriel
                wrote on 1 Jul 2012, 20:12 last edited by
                #7

                I have finally fixed my problem !
                Just created a complete new project and copy pasted everything.

                I think it must have been something with a bad userfile?

                Thanks though !

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                29 Jun 2012, 12:19

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