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  1. Qt
  2. QTBUG-74961

While reading and writing continously via a QSerialPort it is leaking memory

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Details

    • Windows
    • 85ee2c658a45d2958a54045951d236769640337f (qt/qtserialport/5.12)

    Description

      While reading and writing continously via a QSerialPort it is leaking memory. This seems to be coming from the QWinOverlappedIoNotifier code where it seems to come via _q_notify().

      This was confirmed via the Diagnostic Tools in VS 2017 with heap profiling turned on, the leak is small but does continue to increase over time.

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        1. qtbug74961.7z
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        2. qtbug74961.tar.gz
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        Issue Links

          resulted in

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-78086 QSerialPort readyRead broken in 5.13.1, was fine in 5.13.0

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
          For Gerrit Dashboard: QTBUG-74961
          # Subject Branch Project Status CR V
          261547,8 QSerialPort: Port to alertable I/O functions on Windows dev qt/qtserialport Status: MERGED +2 0
          265301,2 Emit _q_notify only if there's no notification pending 5.12 qt/qtserialport Status: MERGED +2 0

          Activity

            People

              jbornema Joerg Bornemann
              andysh Andy Shaw
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              Dates

                Created:
                Updated:
                Resolved:

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