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Application Freezing Problem

  • Hi All,

    I have an application working on LinuxMint 17.3 XFCE with QT5.6.. 10 clients and one PostgreSQL server is running. The App must work 7/24 but sometimes 2-3 times a day application freezes.. I couldn't determine the problem that cousing this..

    How can I find a solution to detect the problem to couse this.. This is a real headache for me..

    Any help will be very valuable..


  • Lifetime Qt Champion

    Its hard to guess at.
    For hanging I often check
    locks/semaphores/ wait states
    also loops of all kinds.

    Do you have idea where in the program it could happen ?
    do you have any logging at all?

  • Moderators

    with a debugger attached you can press the pause button and check the callstack.
    This should give some hints which method causes the freezing.

  • Hi @raven-worx ,

    there's no development tools installed on kiosks, should I install Qt deveopment enviroment on them ?


    Unfortunately it can freeze any where on the application.. There is no routine that freezes the application..

    thanks.. for these rapid help..

  • Lifetime Qt Champion

    And you cannot log anything to file about what is happening ?

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