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Memory leaks in 6.9.1 that weren't there in 6.9.0

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  • joborJ Offline
    joborJ Offline
    jobor
    wrote last edited by
    #3

    Could you please file a bug report? Ideally, with a backtrace after installing the debug symbols via the online installer.

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    • PerdrixP Offline
      PerdrixP Offline
      Perdrix
      wrote last edited by
      #4

      https://bugreports.qt.io/browse/QTBUG-140502

      Christian EhrlicherC 1 Reply Last reply
      0
      • PerdrixP Perdrix

        https://bugreports.qt.io/browse/QTBUG-140502

        Christian EhrlicherC Online
        Christian EhrlicherC Online
        Christian Ehrlicher
        Lifetime Qt Champion
        wrote last edited by
        #5

        @Perdrix said in Memory leaks in 6.9.1 that weren't there in 6.9.0:

        https://bugreports.qt.io/browse/QTBUG-140502

        And still no mimimal, compilable example to reproduce the problem...

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

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        • PerdrixP Offline
          PerdrixP Offline
          Perdrix
          wrote last edited by
          #6

          Any program will do that uses new to create Qt objects.

          JonBJ 1 Reply Last reply
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          • PerdrixP Perdrix

            Any program will do that uses new to create Qt objects.

            JonBJ Offline
            JonBJ Offline
            JonB
            wrote last edited by JonB
            #7

            @Perdrix
            But if you want the devs to actually look at it you need to supply some complete, minimal program which shows that. Devs expect to copy, paste, compile, run, see behaviour, investigate. If you say it is so easy to reproduce that should not be hard. Otherwise I would not rely on them looking into it.

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            • PerdrixP Offline
              PerdrixP Offline
              Perdrix
              wrote last edited by
              #8

              I thought it was trivial to reproduce - but my initial stab at a test case shows I was wrong - I am working on a test case that does show the problem.

              JonBJ 1 Reply Last reply
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              • PerdrixP Perdrix

                I thought it was trivial to reproduce - but my initial stab at a test case shows I was wrong - I am working on a test case that does show the problem.

                JonBJ Offline
                JonBJ Offline
                JonB
                wrote last edited by
                #9

                @Perdrix That's why they always want a complete repro... :)

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                • PerdrixP Offline
                  PerdrixP Offline
                  Perdrix
                  wrote last edited by
                  #10

                  Test case added to bug report

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                  • PerdrixP Offline
                    PerdrixP Offline
                    Perdrix
                    wrote last edited by Perdrix
                    #11

                    Qt developers think these aren't memory blocks allocated by Qt, but (by inference) allocated by Windows.

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                    • PerdrixP Perdrix has marked this topic as solved
                    • Christian EhrlicherC Online
                      Christian EhrlicherC Online
                      Christian Ehrlicher
                      Lifetime Qt Champion
                      wrote last edited by
                      #12

                      The problem is - the initial report and the testcase do not match and 90% of the vld report don't even have a Qt dll anywhere in the backtrace so it's hard to see where Qt should be involved here.
                      As I wrote in my first post - install the Qt debug symbols so we can at least see where exactly in the Qt source the leak should be as it's not reproducible/is different with your test application

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

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                      • PerdrixP Offline
                        PerdrixP Offline
                        Perdrix
                        wrote last edited by
                        #13

                        I accept that this isn't Qt !

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                        • PerdrixP Offline
                          PerdrixP Offline
                          Perdrix
                          wrote last edited by
                          #14

                          For reference The debug pdb files available for Qt 6.9.1 and 6.10 WERE INSTALLED and I NEVER REFUSED to install them e.g. qwindowsd.pdb is there next to qwindowsd.dll

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