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  1. Qt
  2. QTBUG-75907

QLowEnergyController assertion failure

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Details

    • Windows
    • d755f7ab67a1f5b345caf09b1fc798d3c6e0ca34 (qt/qtconnectivity/5.13)

    Description

      I have a widgets based desktop application running on Windows 10 that utilizes the BLE support of Qt to communicate with a custom hardware through Bluetooth. After running the application for some time - involving active Bluetooth communication in the background - the following assert is being triggered:

       
      The call stack of the fault is the following in Visual Studio:

      Qt5Cored.dll!qt_message_fatal(QtMsgType __formal, const QMessageLogContext & context, const QString & message) Line 1875
Qt5Cored.dll!QMessageLogger::fatal(const char * msg, ...) Line 888
Qt5Cored.dll!qt_assert_x(const char * where, const char * what, const char * file, int line) Line 3255
Qt5Cored.dll!QArrayData::deallocate(QArrayData * data, unsigned __int64 objectSize, unsigned __int64 alignment) Line 167
Qt5Cored.dll!QTypedArrayData<char>::deallocate(QArrayData * data) Line 240
Qt5Cored.dll!QByteArray::operator=(const QByteArray & other) Line 1288
Qt5Bluetoothd.dll!QLowEnergyControllerPrivate::updateValueOfCharacteristic(unsigned short charHandle, const QByteArray & value, bool appendValue) Line 219
Qt5Bluetoothd.dll!QLowEnergyControllerPrivateWinRTNew::characteristicChanged(unsigned short charHandle, const QByteArray & data) Line 1573
Qt5Bluetoothd.dll!QLowEnergyControllerPrivateWinRTNew::registerForValueChanges::__l2::<lambda>(ABI::Windows::Devices::Bluetooth::GenericAttributeProfile::IGattCharacteristic * characteristic, ABI::Windows::Devices::Bluetooth::GenericAttributeProfile::IGattValueChangedEventArgs * args) Line 703
[External Code]

      Attachments

        For Gerrit Dashboard: QTBUG-75907
        # Subject Branch Project Status CR V
        264332,7 winrt: Avoid threading issues when handling characteristic changes 5.13 qt/qtconnectivity Status: MERGED +2 0
        264334,6 winrt: Add service thread logging 5.13 qt/qtconnectivity Status: MERGED +2 0

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            owolff Oliver Wolff
            giszo Zoltan Kovacs
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            Dates

              Created:
              Updated:
              Resolved:

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