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  1. Qt
  2. QTBUG-45051

Qt 5.5 Alpha does crash the Qt Quick Designer

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    • 3b5d37ce3841c4bfdf1c629d33f0e33b881b47fb (qtdeclarative)

    Description

      Qt 5.5 Alpha does crash the Qt Quick Designer

      There seems to be a regression deep in the QQml stack.

      The stack trace:

      >	Qt5Cored.dll!qt_message_fatal(QtMsgType __formal, const QMessageLogContext & context, const QString & message) Line 1568	C++
 	Qt5Cored.dll!QMessageLogger::fatal(const char * msg, ...) Line 777	C++
 	Qt5Cored.dll!qt_assert(const char * assertion, const char * file, int line) Line 2894	C++
 	Qt5Qmld.dll!QV4::RuntimeHelpers::convertToObject(QV4::ExecutionEngine * engine, const QV4::Value & value) Line 439	C++
 	Qt5Qmld.dll!QV4::Runtime::getProperty(QV4::ExecutionEngine * engine, const QV4::Value & object, int nameIndex) Line 679	C++
 	[External Code]	
 	[Frames below may be incorrect and/or missing]	
 	Qt5Qmld.dll!QV4::SimpleScriptFunction::call(QV4::Managed * that, QV4::CallData * callData) Line 539	C++
 	Qt5Qmld.dll!QV4::Object::call(QV4::CallData * d) Line 302	C++
 	Qt5Qmld.dll!QQmlJavaScriptExpression::evaluate(QQmlContextData * context, const QV4::Value & function, QV4::CallData * callData, bool * isUndefined) Line 157	C++
 	Qt5Qmld.dll!QQmlJavaScriptExpression::evaluate(QQmlContextData * context, const QV4::Value & function, bool * isUndefined) Line 115	C++
 	Qt5Qmld.dll!QQmlBinding::update(QFlags<enum QQmlPropertyPrivate::WriteFlag> flags) Line 215	C++
 	Qt5Qmld.dll!QQmlBinding::setEnabled(bool e, QFlags<enum QQmlPropertyPrivate::WriteFlag> flags) Line 326	C++
 	Qt5Qmld.dll!QQmlBinding::setEnabled(QQmlAbstractBinding * This, bool e, QFlags<enum QQmlPropertyPrivate::WriteFlag> f) Line 307	C++
 	Qt5Qmld.dll!QQmlAbstractBinding::setEnabled(bool e, QFlags<enum QQmlPropertyPrivate::WriteFlag> f) Line 110	C++
 	Qt5Qmld.dll!QQmlObjectCreator::finalize(QQmlInstantiationInterrupt & interrupt) Line 1213	C++
 	Qt5Qmld.dll!QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt & i) Line 348	C++
 	Qt5Qmld.dll!QQmlEnginePrivate::incubate(QQmlIncubator & i, QQmlContextData * forContext) Line 89	C++
 	Qt5Qmld.dll!QQmlComponent::create(QQmlIncubator & incubator, QQmlContext * context, QQmlContext * forContext) Line 1069	C++
 	Qt5Quickd.dll!QQuickLoaderPrivate::_q_sourceLoaded() Line 715	C++
 	Qt5Quickd.dll!QQuickLoaderPrivate::load() Line 597	C++
 	Qt5Quickd.dll!QQuickLoader::loadFromSourceComponent() Line 497	C++
 	Qt5Quickd.dll!QQuickLoader::setActive(bool newVal) Line 339	C++
 	Qt5Quickd.dll!QQuickLoader::qt_static_metacall(QObject * _o, QMetaObject::Call _c, int _id, void * * _a) Line 246	C++
 	Qt5Quickd.dll!QQuickLoader::qt_metacall(QMetaObject::Call _c, int _id, void * * _a) Line 298	C++
 	Qt5Qmld.dll!QQmlVMEMetaObject::metaCall(QMetaObject::Call c, int _id, void * * a) Line 972	C++
 	Qt5Cored.dll!QAbstractDynamicMetaObject::metaCall(QObject * __formal, QMetaObject::Call c, int _id, void * * a) Line 421	C++
 	Qt5Cored.dll!QMetaObject::metacall(QObject * object, QMetaObject::Call cl, int idx, void * * argv) Line 294	C++
 	Qt5Qmld.dll!QQmlPropertyPrivate::write(QObject * object, const QQmlPropertyData & property, const QVariant & value, QQmlContextData * context, QFlags<enum QQmlPropertyPrivate::WriteFlag> flags) Line 1307	C++
 	Qt5Qmld.dll!QV4::QObjectWrapper::setProperty(QObject * object, QV4::ExecutionContext * ctx, QQmlPropertyData * property, const QV4::Value & value) Line 556	C++
 	Qt5Qmld.dll!QV4::QObjectWrapper::setProperty(QV4::ExecutionContext * ctx, int propertyIndex, const QV4::Value & value) Line 654	C++
 	Qt5Qmld.dll!QV4::Runtime::setQmlQObjectProperty(QV4::ExecutionEngine * engine, const QV4::Value & object, int propertyIndex, const QV4::Value & value) Line 1404	C++
 	[External Code]	
 	Qt5Qmld.dll!QV4::SimpleScriptFunction::call(QV4::Managed * that, QV4::CallData * callData) Line 539	C++
 	Qt5Qmld.dll!QV4::Object::call(QV4::CallData * d) Line 302	C++
 	Qt5Qmld.dll!QQmlJavaScriptExpression::evaluate(QQmlContextData * context, const QV4::Value & function, QV4::CallData * callData, bool * isUndefined) Line 157	C++
 	Qt5Qmld.dll!QQmlBoundSignalExpression::evaluate(void * * a) Line 282	C++
 	Qt5Qmld.dll!QQmlBoundSignal_callback(QQmlNotifierEndpoint * e, void * * a) Line 409	C++
 	Qt5Qmld.dll!QQmlNotifier::emitNotify(QQmlNotifierEndpoint * endpoint, void * * a) Line 73	C++
 	Qt5Qmld.dll!QQmlNotifier::emitNotify(QQmlNotifierEndpoint * endpoint, void * * a) Line 68	C++
 	Qt5Qmld.dll!QQmlData::signalEmitted(QAbstractDeclarativeData * __formal, QObject * object, int index, void * * a) Line 745	C++
 	Qt5Cored.dll!QMetaObject::activate(QObject * sender, int signalOffset, int local_signal_index, void * * argv) Line 3604	C++
 	Qt5Qmld.dll!QQmlVMEMetaObject::activate(QObject * object, int index, void * * args) Line 1324	C++
 	Qt5Qmld.dll!QQmlVMEMetaObject::metaCall(QMetaObject::Call c, int _id, void * * a) Line 844	C++
 	Qt5Cored.dll!QAbstractDynamicMetaObject::metaCall(QObject * __formal, QMetaObject::Call c, int _id, void * * a) Line 421	C++
 	Qt5Cored.dll!QMetaObject::metacall(QObject * object, QMetaObject::Call cl, int idx, void * * argv) Line 294	C++
 	Qt5Qmld.dll!QQmlPropertyPrivate::writeBinding(QObject * object, const QQmlPropertyData & core, QQmlContextData * context, QQmlJavaScriptExpression * expression, const QV4::Value & result, bool isUndefined, QFlags<enum QQmlPropertyPrivate::WriteFlag> flags) Line 1497	C++
 	Qt5Qmld.dll!QQmlBinding::update(QFlags<enum QQmlPropertyPrivate::WriteFlag> flags) Line 220	C++
 	Qt5Qmld.dll!QQmlBinding::update() Line 97	C++
 	Qt5Qmld.dll!QQmlBinding::expressionChanged(QQmlJavaScriptExpression * e) Line 282	C++
 	Qt5Qmld.dll!QQmlJavaScriptExpressionGuard_callback(QQmlNotifierEndpoint * e, void * * __formal) Line 360	C++
 	Qt5Qmld.dll!QQmlNotifier::emitNotify(QQmlNotifierEndpoint * endpoint, void * * a) Line 73	C++
 	Qt5Qmld.dll!QQmlData::signalEmitted(QAbstractDeclarativeData * __formal, QObject * object, int index, void * * a) Line 745	C++
 	Qt5Cored.dll!QMetaObject::activate(QObject * sender, int signalOffset, int local_signal_index, void * * argv) Line 3604	C++
 	Qt5Cored.dll!QMetaObject::activate(QObject * sender, const QMetaObject * m, int local_signal_index, void * * argv) Line 3583	C++
 	QmlDesignerd.dll!QmlDesigner::PropertyEditorContextObject::specificQmlDataChanged() Line 427	C++
 	QmlDesignerd.dll!QmlDesigner::PropertyEditorContextObject::setSpecificQmlData(const QString & newSpecificQmlData) Line 205	C++
 	QmlDesignerd.dll!QmlDesigner::PropertyEditorView::setupQmlBackend() Line 434	C++
 	QmlDesignerd.dll!QmlDesigner::PropertyEditorView::resetView() Line 358	C++
 	QmlDesignerd.dll!QmlDesigner::PropertyEditorView::timerEvent(QTimerEvent * timerEvent) Line 338	C++
 	Qt5Cored.dll!QObject::event(QEvent * e) Line 1228	C++
 	Qt5Widgetsd.dll!QApplicationPrivate::notify_helper(QObject * receiver, QEvent * e) Line 3716	C++
 	Qt5Widgetsd.dll!QApplication::notify(QObject * receiver, QEvent * e) Line 3160	C++
 	Qt5Cored.dll!QCoreApplication::notifyInternal(QObject * receiver, QEvent * event) Line 963	C++
 	Qt5Cored.dll!QCoreApplication::sendEvent(QObject * receiver, QEvent * event) Line 228	C++
 	Qt5Cored.dll!QEventDispatcherWin32Private::sendTimerEvent(int timerId) Line 615	C++
 	Qt5Cored.dll!qt_internal_proc(HWND__ * hwnd, unsigned int message, unsigned int wp, long lp) Line 418	C++
 	[External Code]	
 	Qt5Cored.dll!QEventDispatcherWin32::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 807	C++
 	qwindowsd.dll!QWindowsGuiEventDispatcher::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 73	C++
 	Qt5Cored.dll!QEventLoop::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 129	C++
 	Qt5Cored.dll!QEventLoop::exec(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 204	C++
 	Qt5Cored.dll!QCoreApplication::exec() Line 1216	C++
 	Qt5Guid.dll!QGuiApplication::exec() Line 1526	C++
 	Qt5Widgetsd.dll!QApplication::exec() Line 2977	C++
 	qtcreator.exe!main(int argc, char * * argv) Line 511	C++
 	[External Code]

      The crash seems to be triggered by a Loader when we change the source URL from the C++ backend.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-45279 Crash on QV4MemoryManagement::runGC

          • 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-45051
          # Subject Branch Project Status CR V
          111390,4 Fix memory corruption when multiple QML engines have JavaScript wrappers for the same QObject 5.5 qt/qtdeclarative Status: MERGED +2 0

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              shausman Simon Hausmann
              thohartm Thomas Hartmann
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              Dates

                Created:
                Updated:
                Resolved:

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