?? () from /usr/lib/i386-linux-gnu/libQtDBus.so.4
QDBusAbstractInterface::asyncCallWithArgumentList(QString const&, QList<QVariant> const&) () from /usr/lib/i386-linux-gnu/libQtDBus.so.4
BamfView::icon() const () from /usr/lib/libQtBamf.so.1
WindowInfo::icon() const () from /usr/lib/libunity-2d-private.so.0
WindowInfo::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libunity-2d-private.so.0