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Code running in 5.12, but not in 5.15 or higher

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  • T Offline
    T Offline
    Thomas 63
    wrote on last edited by
    #1

    Hello

    I generate code in Qt Creator 4.14.2
    My code did run in all older Versions up to 5.12.4
    But when I use it in 5.15.2 or 6.0.1, it does compile but crashes with the following message:

    ---------------------------
    Signal erhalten
    ---------------------------
    <p>Der Prozess wurde wegen eines Signals vom Betriebssystem angehalten.<p><table><tr><td>Name des Signals : </td><td>SIGSEGV</td></tr><tr><td>Bedeutung : </td><td>Segmentation fault</td></tr></table>
    ---------------------------
    OK   
    ---------------------------
    

    It crashes in the line

    ui->setupUi(this);
    

    In mainwindow.cpp
    What can i do to avoid this?

    Thanks,

    Thomas

    jsulmJ 1 Reply Last reply
    0
    • T Thomas 63

      Hello

      I generate code in Qt Creator 4.14.2
      My code did run in all older Versions up to 5.12.4
      But when I use it in 5.15.2 or 6.0.1, it does compile but crashes with the following message:

      ---------------------------
      Signal erhalten
      ---------------------------
      <p>Der Prozess wurde wegen eines Signals vom Betriebssystem angehalten.<p><table><tr><td>Name des Signals : </td><td>SIGSEGV</td></tr><tr><td>Bedeutung : </td><td>Segmentation fault</td></tr></table>
      ---------------------------
      OK   
      ---------------------------
      

      It crashes in the line

      ui->setupUi(this);
      

      In mainwindow.cpp
      What can i do to avoid this?

      Thanks,

      Thomas

      jsulmJ Offline
      jsulmJ Offline
      jsulm
      Lifetime Qt Champion
      wrote on last edited by
      #2

      @Thomas-63 said in Code running in 5.12, but not in 5.15 or higher:

      What can i do to avoid this?

      Please post the stack trace after crash.

      Also, did you completely rebuild your project after switching to other Qt version?

      https://forum.qt.io/topic/113070/qt-code-of-conduct

      1 Reply Last reply
      0
      • T Offline
        T Offline
        Thomas 63
        wrote on last edited by
        #3

        Is this the stack trace?

        0x4014b0                  48 83 ec 28                    sub    $0x28,%rsp
        0x4014b4  <+    4>        48 8b 05 05 af 53 00           mov    0x53af05(%rip),%rax        # 0x93c3c0 <.refptr.mingw_app_type>
        0x4014bb  <+   11>        c7 00 01 00 00 00              movl   $0x1,(%rax)
        0x4014c1  <+   17>        e8 aa aa 25 00                 callq  0x65bf70 <__security_init_cookie>
        0x4014c6  <+   22>        e8 b5 fc ff ff                 callq  0x401180 <__tmainCRTStartup>
        0x4014cb  <+   27>        90                             nop
        0x4014cc  <+   28>        90                             nop
        0x4014cd  <+   29>        48 83 c4 28                    add    $0x28,%rsp
        0x4014d1  <+   33>        c3                             retq
        0x4014d2  <+   34>        0f 1f 40 00                    nopl   0x0(%rax)
        0x4014d6  <+   38>        66 2e 0f 1f 84 00 00 00 00 00  nopw   %cs:0x0(%rax,%rax,1)
        

        or this?

        1 QWidget::raise()                            0x3207c70 
        2 Ui_MainWindow::setupUi ui_mainwindow.h 2602 0x6e3664  
        3 MainWindow::MainWindow mainwindow.cpp  74   0x403f6f  
        4 qMain                  main.cpp        8    0x4015ac  
        5 WinMain                qtmain_win.cpp  97   0x65d41d  
        6 __tmainCRTStartup                           0x4013c7  
        7 WinMainCRTStartup                           0x4014cb  
        
        

        Yes. I made a rebuild of the project

        1 Reply Last reply
        0
        • Christian EhrlicherC Offline
          Christian EhrlicherC Offline
          Christian Ehrlicher
          Lifetime Qt Champion
          wrote on last edited by
          #4

          Simplify your code until it no longer crashes. Doesn't look to hard to track down the issues since it's directly in the ctor. I would guess 'ui' is not initialized but without code it's just a wild guess.

          Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
          Visit the Qt Academy at https://academy.qt.io/catalog

          1 Reply Last reply
          0
          • T Offline
            T Offline
            Thomas 63
            wrote on last edited by
            #5

            It is solved - I had to find some updates for external libraries and the problem was gone.

            1 Reply Last reply
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