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  4. what is reson behind error malloc(): unaligned tcache chunk detected ?
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what is reson behind error malloc(): unaligned tcache chunk detected ?

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  • Q Qt embedded developer

    i don't know but when i run my qt/qml application. it get crash with below message :

    malloc(): unaligned tcache chunk detected

    if any body now the solution then please let me know about this ?

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

    @Qt-embedded-developer said in what is reson behind error malloc(): unaligned tcache chunk detected ?:

    if any body now the solution then please let me know about this ?

    Please first use debugger to see where exactly it is crashing in your code.
    That is way more efficient than asking in a forum without any code and waiting for an answer...

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

    Q 1 Reply Last reply
    1
    • jsulmJ jsulm

      @Qt-embedded-developer said in what is reson behind error malloc(): unaligned tcache chunk detected ?:

      if any body now the solution then please let me know about this ?

      Please first use debugger to see where exactly it is crashing in your code.
      That is way more efficient than asking in a forum without any code and waiting for an answer...

      Q Offline
      Q Offline
      Qt embedded developer
      wrote on last edited by
      #3

      @jsulm in debugging mode it not get crash only when running on release mode it get crash.

      i want to know when above warning or error comes ?

      JonBJ 1 Reply Last reply
      0
      • Q Qt embedded developer

        @jsulm in debugging mode it not get crash only when running on release mode it get crash.

        i want to know when above warning or error comes ?

        JonBJ Online
        JonBJ Online
        JonB
        wrote on last edited by JonB
        #4

        @Qt-embedded-developer
        For a start it will depend on your operating system and compiler, about which you say nothing.
        It is also relevant whether you yourself are calling malloc(), you don't say.
        Did you try Googling for the exact error message?

        Q 1 Reply Last reply
        1
        • JonBJ JonB

          @Qt-embedded-developer
          For a start it will depend on your operating system and compiler, about which you say nothing.
          It is also relevant whether you yourself are calling malloc(), you don't say.
          Did you try Googling for the exact error message?

          Q Offline
          Q Offline
          Qt embedded developer
          wrote on last edited by
          #5

          @JonB no i have not used malloc. i have used new operator.

          Yes i have done google.

          i am using linux os

          JonBJ jsulmJ 2 Replies Last reply
          0
          • Q Qt embedded developer

            @JonB no i have not used malloc. i have used new operator.

            Yes i have done google.

            i am using linux os

            JonBJ Online
            JonBJ Online
            JonB
            wrote on last edited by JonB
            #6

            @Qt-embedded-developer said in what is reson behind error malloc(): unaligned tcache chunk detected ?:

            Yes i have done google.

            Google: malloc(): unaligned tcache chunk detected
            Loads of hits. How did they relate to your situation?

            1 Reply Last reply
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            • Q Qt embedded developer

              @JonB no i have not used malloc. i have used new operator.

              Yes i have done google.

              i am using linux os

              jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #7

              @Qt-embedded-developer You also should check your app for memory leaks and other memory related issues. You can use Valgrind for that.

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

              Q 1 Reply Last reply
              1
              • jsulmJ jsulm

                @Qt-embedded-developer You also should check your app for memory leaks and other memory related issues. You can use Valgrind for that.

                Q Offline
                Q Offline
                Qt embedded developer
                wrote on last edited by Qt embedded developer
                #8

                @jsulm can i check like below for qt executable file that get created after build on cmd line in linux :

                valgrind --tool=memcheck --leak-check=yes ./qtapp

                i have used above command but i got the warning :

                error while loading shared libraries: libadc.so: cannot open shared object file: No such file or directory

                jsulmJ 1 Reply Last reply
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                • Q Qt embedded developer

                  @jsulm can i check like below for qt executable file that get created after build on cmd line in linux :

                  valgrind --tool=memcheck --leak-check=yes ./qtapp

                  i have used above command but i got the warning :

                  error while loading shared libraries: libadc.so: cannot open shared object file: No such file or directory

                  jsulmJ Offline
                  jsulmJ Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on last edited by
                  #9

                  @Qt-embedded-developer said in what is reson behind error malloc(): unaligned tcache chunk detected ?:

                  libadc.so:

                  What is this lib?

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

                  Q 1 Reply Last reply
                  0
                  • jsulmJ jsulm

                    @Qt-embedded-developer said in what is reson behind error malloc(): unaligned tcache chunk detected ?:

                    libadc.so:

                    What is this lib?

                    Q Offline
                    Q Offline
                    Qt embedded developer
                    wrote on last edited by
                    #10

                    @jsulm this library is my shared library used in app

                    JonBJ jsulmJ 2 Replies Last reply
                    0
                    • Q Qt embedded developer

                      @jsulm this library is my shared library used in app

                      JonBJ Online
                      JonBJ Online
                      JonB
                      wrote on last edited by JonB
                      #11

                      @Qt-embedded-developer
                      From the same shell (e.g. not from Creator) as wherever you ran valgrind --tool=memcheck --leak-check=yes ./qtapp from, do you not get same error message if you try ./qtapp?

                      1 Reply Last reply
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                      • Q Qt embedded developer

                        @jsulm this library is my shared library used in app

                        jsulmJ Offline
                        jsulmJ Offline
                        jsulm
                        Lifetime Qt Champion
                        wrote on last edited by
                        #12

                        @Qt-embedded-developer Where exactly is this lib located?
                        You can set LD_LIBRARY_PATH (in same terminal where you're calling valgrind) to point to the folder where this lib is located.
                        Keep in mind that you can also use Valgrind directly in QtCreator.

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

                        1 Reply Last reply
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