Solved Valgrind Memory Analyzer is crashing Qt Creator
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Running "Analyzer -> Valgrind Memory Analyzer" in Qt Creator 3.5.1 on Linux Mint 18.3, is mostly crashing Qt. The main window of Qt disappears when this happens.
When it doesn't crash the only issues that are reported by the analyzer for my application are "external errors".
Is there a crash log I can look at? Should I worry?
Here is one of the issues:
9 bytes in 1 blocks are definitely lost in loss record 282 of 8,078 in SolveDialog::showSolution(Model&, MD&, int*) in /home/daniel/Documents/Qt/exxx/solvedialog.cpp:127 1: malloc in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so 2: /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0 3: _XmbTextListToTextProperty in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0 4: 0x40b438e 5: QWindow::setTitle(QString const&) in /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5.5.1 6: QWidgetPrivate::setWindowTitle_helper(QString const&) in /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.5.1 7: QWidget::create(unsigned long long, bool, bool) in /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.5.1 8: QWidget::setVisible(bool) in /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.5.1 9: QDialog::setVisible(bool) in /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.5.1 10: QDialog::exec() in /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.5.1 11: SolveDialog::showSolution(Model&, MD&, int*) in /home/daniel/Documents/Qt/exxx/solvedialog.cpp:127 12: MainWindow::viewSolution() in /home/daniel/Documents/Qt/exxx/mainwindow.cpp:298 13: MainWindow::solved() in /home/daniel/Documents/Qt/exxx/mainwindow.cpp:424 14: QObject::event(QEvent*) in /usr/lib/x86_64-linux-gnu/libQt5Core.so.5.5.1 15: QWidget::event(QEvent*) in /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.5.1 16: QMainWindow::event(QEvent*) in /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.5.1 17: QApplicationPrivate::notify_helper(QObject*, QEvent*) in /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.5.1 18: QApplication::notify(QObject*, QEvent*) in /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.5.1 19: Application::notify(QObject*, QEvent*) in /home/daniel/Documents/Qt/exxx/main.cpp:107 20: QCoreApplication::notifyInternal(QObject*, QEvent*) in /usr/lib/x86_64-linux-gnu/libQt5Core.so.5.5.1 21: QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) in /usr/lib/x86_64-linux-gnu/libQt5Core.so.5.5.1 22: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5.5.1 23: g_main_context_dispatch in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4800.2 24: /lib/x86_64-linux-gnu/libglib-2.0.so.0.4800.2 25: g_main_context_iteration in /lib/x86_64-linux-gnu/libglib-2.0.so.0.4800.2
The line where this is reported is on an exec command for a dialog. The dialog has code such as:
SolveDialog::SolveDialog(QWidget *parent) : QDialog(parent), ui(new Ui::SolveDialog) { ui->setupUi(this); ui->tableWidget->setHorizontalHeaderLabels(QStringList() << tr("Class") << tr("Item Index") << tr("Item Name") << tr("Item Cost") << tr("Item Value")); setWindowFlags(Qt::Window | Qt::WindowMaximizeButtonHint | Qt::WindowCloseButtonHint); } SolveDialog::~SolveDialog() { delete ui; }
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Hi. I installed Qt with the Software Manager in Linux Mint. Do you have a link to some instructions for upgrading Qt / Qt Creator?
All I have found is:
link textThanks
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http://download.qt.io/official_releases/qtcreator has standalone installers. You can even put that in your
$HOME
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I upgraded to Qt Creator 4.10.1 and recompiled my app. I get an actual reported error now as opposed to a crash. So I'm marking this as solved.