Uploaded image for project: 'Qt'
  1. Qt
  2. QTBUG-76110

WebView QML Component not ready

    XMLWordPrintable

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P1: Critical
    • Resolution: Invalid
    • Affects Version/s: 5.9.4, 5.12.1
    • Fix Version/s: None
    • Component/s: WebView
    • Labels:
      None
    • Platform/s:
      Linux/X11, Linux/Other display system

      Description

      I have seen the following on desktop Linux with Qt 5.12.1 and on Boot2Qt with iMX6 with Qt 5.9.4 on Boundary Devices. This is in custom application, but at least on Desktop Linux I see it with the Minibrowser example application as well.

      QQmlComponent: Component is not ready
       QObject::connect: invalid null parameter
       QObject::connect: invalid null parameter
       QObject::connect: invalid null parameter
       QObject::connect: invalid null parameter
      Thread 1 "app" received signal SIGSEGV, Segmentation fault.
       0x76e11a64 in QQuickItem::setParentItem(QQuickItem*) () from
       /usr/lib/libQt5Quick.so.5
       (gdb) bt
       #0 0x76e11a64 in QQuickItem::setParentItem(QQuickItem*) () from
       /usr/lib/libQt5Quick.so.5
       #1 0x71714c1c in QWebEngineWebViewPrivate::QQuickWebEngineViewPtr::init
       (this=this@entry=0xcafa0) at
       /usr/src/debug/qtwebview/5.9.4+gitAUTOINC+e00b5892ac-r0/git/src/webview/qwebview_webengine.cpp:232
       #2 0x71714d40 in
       QWebEngineWebViewPrivate::QQuickWebEngineViewPtr::operator->
       (this=0xcafa0) at
       /usr/src/debug/qtwebview/5.9.4+gitAUTOINC+e00b5892ac-r0/git/src/webview/qwebview_webengine_p.h:109
       #3 QWebEngineWebViewPrivate::setUrl (this=0xcaf90, url=...) at
       /usr/src/debug/qtwebview/5.9.4+gitAUTOINC+e00b5892ac-r0/git/src/webview/qwebview_webengine.cpp:91
       #4 0x71715ae0 in QQuickWebView::qt_static_metacall (_o=0xcc320,
       _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at
       .moc/moc_qquickwebview_p.cpp:278
       #5 0x761e1f1c in ?? () from /usr/lib/libQt5Qml.so.5
        

      Here is the backtrace I see on Desktop Linux with X11 and Qt 5.12.1 running the minibrowser example:

      1 QQuickItem::setParentItem(QQuickItem *) 0x7ffff5514931 
       2 QWebEngineWebViewPrivate::QQuickWebEngineViewPtr::init() const 0x7fffec9b745f 
       3 QWebEngineWebViewPrivate::parentView() const 0x7fffec9b79e5 
       4 QQuickViewController::onWindowChanged(QQuickWindow *) 0x7ffff7bcada1 
       5 QMetaObject::activate(QObject *, int, int, void * *) 0x7ffff6804bd6 
       6 QQuickItem::windowChanged(QQuickWindow *) 0x7ffff5501cc2 
       7 QQuickItemPrivate::refWindow(QQuickWindow *) 0x7ffff55142d0 
       8 QQuickItem::setParentItem(QQuickItem *) 0x7ffff5514c0d 
       9 QQuickItemPrivate::data_append(QQmlListProperty<QObject> *, QObject *) 0x7ffff5515247 
       10 QQmlObjectCreator::setPropertyBinding(QQmlPropertyData const *, QV4::CompiledData::Binding const *) 0x7ffff6fe6fdd 
       11 QQmlObjectCreator::setupBindings(bool) 0x7ffff6fe796e 
       12 QQmlObjectCreator::populateInstance(int, QObject *, QObject *, QQmlPropertyData const *) 0x7ffff6fe4986 
       13 QQmlObjectCreator::createInstance(int, QObject *, bool) 0x7ffff6fe505e 
       14 QQmlObjectCreator::create(int, QObject *, QQmlInstantiationInterrupt *) 0x7ffff6fe838e 
       15 QQmlComponentPrivate::beginCreate(QQmlContextData *) 0x7ffff6f6af2b 
       16 QQmlComponent::create(QQmlContext *) 0x7ffff6f68a89 
       17 QQmlApplicationEnginePrivate::finishLoad(QQmlComponent *) 0x7ffff6fda0eb 
       18 QQmlApplicationEnginePrivate::startLoad(QUrl const&, QByteArray const&, bool) 0x7ffff6fda36e 
       19 QQmlApplicationEngine::load(QUrl const&) 0x7ffff6fda39d 
       20 main main.cpp 115 0x555555557036 
       ... <More> 

       

        Attachments

        No reviews matched the request. Check your Options in the drop-down menu of this sections header.

          Activity

            People

            Assignee:
            kkohne Kai Köhne
            Reporter:
            atreat Adam Treat
            Votes:
            0 Vote for this issue
            Watchers:
            5 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved:

                Gerrit Reviews

                There are no open Gerrit changes