https://bugreports.qt-project.org/browse/QTBUG-35702
On 01/21/2014 09:54 AM, Fabien Castan wrote: > Hi, > I get some troubles in building Qt by myself... (errors with pch files). > Could someone with a debug version of qmlscene try to open the external > drag&drop example ? > > qmlscene > qt5/qtdeclarative/examples/quick/externaldraganddrop/externaldraganddrop.qml > > It's reproductible. Just try to drag the qml item inside the qml > application or to an external application. It crashes in both cases. > > > > 2014/1/21 Thiago Macieira <[email protected] > <mailto:[email protected]>> > > Please run valgrind with debug-mode Qt too. Valgrinding release-mode > Qt is not > helpful. We need to know what these question marks mean: > > On terça-feira, 21 de janeiro de 2014 01:36:36, Fabien Castan wrote: > > ==22064== Invalid read of size 8 > > ==22064== at 0x6306D30: QDrag::mimeData() const (in > > /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Gui.so.5.2.0) > > ==22064== by 0xD4BA356: ??? (in > > /opt/Qt5.2.0/5.2.0/gcc_64/plugins/platforms/libqxcb.so) > > ==22064== by 0xD4B1E67: ??? (in > > /opt/Qt5.2.0/5.2.0/gcc_64/plugins/platforms/libqxcb.so) > > ==22064== by 0xD4B2A5A: ??? (in > > /opt/Qt5.2.0/5.2.0/gcc_64/plugins/platforms/libqxcb.so) > > ==22064== by 0x6B4D90D: QObject::event(QEvent*) (in > > /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Core.so.5.2.0) > > ==22064== by 0x5B16F33: QApplicationPrivate::notify_helper(QObject*, > > QEvent*) (in /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Widgets.so.5.2.0) > > ==22064== by 0x5B1A50D: QApplication::notify(QObject*, QEvent*) (in > > /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Widgets.so.5.2.0) > > ==22064== by 0x6B23553: QCoreApplication::notifyInternal(QObject*, > > QEvent*) (in /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Core.so.5.2.0) > > ==22064== by 0x6B25E08: > > QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) > (in > > /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Core.so.5.2.0) > > ==22064== by 0x6B73B82: ??? (in > > /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Core.so.5.2.0) > > ==22064== by 0x83A43B5: g_main_context_dispatch (in > > /lib/x86_64-linux-gnu/libglib-2.0.so.0.3800.1) > > ==22064== by 0x83A4707: ??? (in > > /lib/x86_64-linux-gnu/libglib-2.0.so.0.3800.1) > > ==22064== Address 0x13b07288 is 8 bytes inside a block of size 16 > free'd > > ==22064== at 0x4C2BADC: operator delete(void*) (in > > /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) > > ==22064== by 0x5074AB9: ??? (in > > /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Quick.so.5.2.0) > > These here. What deleted the pointer? > > > ==22064== by 0x5074F02: ??? (in > > /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Quick.so.5.2.0) > > ==22064== by 0x50EAFEF: ??? (in > > /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Quick.so.5.2.0) > > ==22064== by 0x55DD022: QQmlPropertyPrivate::write(QObject*, > > QQmlPropertyData const&, QVariant const&, QQmlContextData*, > > QFlags<QQmlPropertyPrivate::WriteFlag>) (in > > /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Qml.so.5.2.0) > > ==22064== by 0x55DEB32: > > QQmlPropertyPrivate::writeValueProperty(QObject*, QQmlPropertyData > const&, > > QVariant const&, QQmlContextData*, > QFlags<QQmlPropertyPrivate::WriteFlag>) > > (in /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Qml.so.5.2.0) > > ==22064== by 0x55DF174: QQmlPropertyPrivate::writeBinding(QObject*, > > QQmlPropertyData const&, QQmlContextData*, QQmlJavaScriptExpression*, > > QV4::ValueRef, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) (in > > /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Qml.so.5.2.0) > > ==22064== by 0x5684169: > > QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) (in > > /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Qml.so.5.2.0) > > ==22064== by 0x56844DD: > > QQmlBinding::expressionChanged(QQmlJavaScriptExpression*) (in > > /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Qml.so.5.2.0) > > ==22064== by 0x565AE46: > QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, > > void**) (in /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Qml.so.5.2.0) > > ==22064== by 0x55CA1CB: > > QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, > void**) > > (in /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Qml.so.5.2.0) > > ==22064== by 0x6B4C126: QMetaObject::activate(QObject*, int, int, > > void**) (in /opt/Qt5.2.0/5.2.0/gcc_64/lib/libQt5Core.so.5.2.0) > > -- > Thiago Macieira - thiago.macieira (AT) intel.com <http://intel.com> > Software Architect - Intel Open Source Technology Center > > _______________________________________________ > Development mailing list > [email protected] <mailto:[email protected]> > http://lists.qt-project.org/mailman/listinfo/development > > > > > _______________________________________________ > Development mailing list > [email protected] > http://lists.qt-project.org/mailman/listinfo/development > _______________________________________________ Development mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/development
