QWebView App crashes when loading (with logs) and painting - c++

Question

0 WTFCrash assertions.cpp 345 0x10f50517
1 WTF::OwnPtr::operator-> ownptr.h 72 0xffbc8cd
2 WebCore::BitmapTextureImageBuffer::updateContents texturemapperimagebuffer.cpp 62 0x109cb865
3 WebCore::TextureMapperTile::updateContents texturemappertile.cpp 70 0x109cfdb5
4 WebCore::TextureMapperTiledBackingStore::updateContents texturemappertiledbackingstore.cpp 147 0x109c1831
5 WebCore::GraphicsLayerTextureMapper::updateBackingStoreIfNeeded graphicslayertexturemapper.cpp 624 0x103b852e
6 WebCore::GraphicsLayerTextureMapper::flushCompositingStateForThisLayerOnly graphicslayertexturemapper.cpp 444 0x103b79b4
7 WebCore::GraphicsLayerTextureMapper::flushCompositingState graphicslayertexturemapper.cpp 591 0x103b78c7
8 WebCore::GraphicsLayerTextureMapper::flushCompositingState graphicslayertexturemapper.cpp 596 0x103b796f
9 WebCore::GraphicsLayerTextureMapper::flushCompositingState graphicslayertexturemapper.cpp 596 0x103b796f
10 WebCore::GraphicsLayerTextureMapper::flushCompositingState graphicslayertexturemapper.cpp 596 0x103b796f
11 WebCore::GraphicsLayerTextureMapper::flushCompositingState graphicslayertexturemapper.cpp 596 0x103b796f
12 WebCore::GraphicsLayerTextureMapper::flushCompositingState graphicslayertexturemapper.cpp 596 0x103b796f
13 WebCore::RenderLayerCompositor::flushPendingLayerChanges renderlayercompositor.cpp 399 0x1010ef84
14 WebCore::FrameView::flushCompositingStateForThisFrame frameview.cpp 937 0xffda850
15 WebCore::FrameView::paintContents frameview.cpp 3613 0xffdd1a0
16 QWebFrameAdapter::renderRelativeCoords qwebframeadapter.cpp 539 0xfb0787c
17 QWebFrame::render qwebframe.cpp 644 0x60e96a96
18 QWebFrame::render qwebframe.cpp 655 0x60e96a54
19 QWebView::paintEvent qwebview.cpp 833 0x60ea34e8
20 QWidget::event qwidget.cpp 8114 0x778e9b5c
21 QWebView::event qwebview.cpp 732 0x60ea30dc
22 QApplicationPrivate::notify_helper qapplication.cpp 3500 0x778a1dde
23 QApplication::notify qapplication.cpp 3465 0x7789fdbe
24 QCoreApplication::notifyInternal qcoreapplication.cpp 935 0x66412d04
25 QCoreApplication::sendSpontaneousEvent qcoreapplication.h 240 0x66528938
26 QWidgetPrivate::drawWidget qwidget.cpp 5151 0x778ef4f1
27 QWidgetBackingStore::doSync qwidgetbackingstore.cpp 1180 0x778b2a74
28 QWidgetBackingStore::sync qwidgetbackingstore.cpp 1027 0x778b0f40
29 QWidgetPrivate::syncBackingStore qwidget.cpp 1693 0x778f13e1
30 QWidget::event qwidget.cpp 8252 0x778e9ee2
31 QWebView::event qwebview.cpp 732 0x60ea30dc
32 QApplicationPrivate::notify_helper qapplication.cpp 3500 0x778a1dde
33 QApplication::notify qapplication.cpp 3465 0x7789fdbe
34 QCoreApplication::notifyInternal qcoreapplication.cpp 935 0x66412d04
35 QCoreApplication::sendEvent qcoreapplication.h 237 0x6641c0d9
36 QCoreApplicationPrivate::sendPostedEvents qcoreapplication.cpp 1539 0x66413ce6
37 QCoreApplication::sendPostedEvents qcoreapplication.cpp 1397 0x664117c2
38 QWindowsGuiEventDispatcher::sendPostedEvents qwindowsguieventdispatcher.cpp 88 0x5223bf1
39 qt_internal_proc qeventdispatcher_win.cpp 423 0x664aa392
40 _InternalCallWinProc USER32 0x77467834
41 UserCallWinProcCheckWow USER32 0x77467a9a
42 DispatchMessageWorker USER32 0x7746988e
43 DispatchMessageW USER32 0x774698f1
44 QEventDispatcherWin32::processEvents qeventdispatcher_win.cpp 757 0x664aac85
45 QWindowsGuiEventDispatcher::processEvents qwindowsguieventdispatcher.cpp 80 0x5223b1c
46 QEventLoop::processEvents qeventloop.cpp 137 0x6640eb8c
47 QEventLoop::exec qeventloop.cpp 212 0x6640ed82
48 MainWindow::waitForLoad mainwindow.cpp 345 0xe10fd2
49 MainWindow::thread mainwindow.cpp 460 0xe0729b
50 MainWindow::on_GoButton_clicked mainwindow.cpp 99 0xe04b32
51 MainWindow::qt_static_metacall moc_mainwindow.cpp 72 0xe2f5a8
52 MainWindow::qt_metacall moc_mainwindow.cpp 100 0xe2f53b
53 QMetaObject::metacall qmetaobject.cpp 309 0x6641ede0
54 QMetaObject::activate qobject.cpp 3695 0x6645da56
55 QMetaObject::activate qobject.cpp 3546 0x6645d411
56 QAbstractButton::clicked moc_qabstractbutton.cpp 294 0x77d4809b
57 QAbstractButtonPrivate::emitClicked qabstractbutton.cpp 544 0x779f6657
58 QAbstractButtonPrivate::click qabstractbutton.cpp 536 0x779f5bdb
59 QAbstractButton::mouseReleaseEvent qabstractbutton.cpp 1141 0x779f5042
60 QWidget::event qwidget.cpp 7962 0x778e957c
61 QAbstractButton::event qabstractbutton.cpp 1098 0x779f4ba1
62 QPushButton::event qpushbutton.cpp 682 0x77ab6f1b
63 QApplicationPrivate::notify_helper qapplication.cpp 3500 0x778a1dde
64 QApplication::notify qapplication.cpp 3067 0x7789e5ee
65 QCoreApplication::notifyInternal qcoreapplication.cpp 935 0x66412d04
66 QCoreApplication::sendSpontaneousEvent qcoreapplication.h 240 0x66528938
67 QApplicationPrivate::sendMouseEvent qapplication.cpp 2540 0x778a3123
68 QWidgetWindow::handleMouseEvent qwidgetwindow.cpp 505 0x779249f1
69 QWidgetWindow::event qwidgetwindow.cpp 180 0x77923c0e
70 QApplicationPrivate::notify_helper qapplication.cpp 3500 0x778a1dde
71 QApplication::notify qapplication.cpp 2953 0x7789dfb7
72 QCoreApplication::notifyInternal qcoreapplication.cpp 935 0x66412d04
73 QCoreApplication::sendSpontaneousEvent qcoreapplication.h 240 0x66528938
74 QGuiApplicationPrivate::processMouseEvent qguiapplication.cpp 1701 0x10c82af
75 QGuiApplicationPrivate::processWindowSystemEvent qguiapplication.cpp 1502 0x10ca1d9
76 QWindowSystemInterface::sendWindowSystemEvents qwindowsysteminterface.cpp 579 0x10acad1
77 QWindowsGuiEventDispatcher::sendPostedEvents qwindowsguieventdispatcher.cpp 89 0x5223c01
78 qt_internal_proc qeventdispatcher_win.cpp 423 0x664aa392
79 _InternalCallWinProc USER32 0x77467834
80 UserCallWinProcCheckWow USER32 0x77467a9a
81 DispatchMessageWorker USER32 0x7746988e
82 DispatchMessageW USER32 0x774698f1
83 QEventDispatcherWin32::processEvents qeventdispatcher_win.cpp 757 0x664aac85
84 QWindowsGuiEventDispatcher::processEvents qwindowsguieventdispatcher.cpp 80 0x5223b1c
85 QEventLoop::processEvents qeventloop.cpp 137 0x6640eb8c
86 QEventLoop::exec qeventloop.cpp 212 0x6640ed82
87 QCoreApplication::exec qcoreapplication.cpp 1188 0x66411312
88 QGuiApplication::exec qguiapplication.cpp 1437 0x10c6e78
89 QApplication::exec qapplication.cpp 2746 0x7789dab9
90 main main.cpp 10 0xe02c18 91 WinMain qtmain_win.cpp 131 0xe3145a
92 __tmainCRTStartup crtexe.c 528 0xe30872
93 WinMainCRTStartup crtexe.c 377 0xe3063d
94 BaseThreadInitThunk KERNEL32 0x772f919f
95 __RtlUserThreadStart ntdll 0x7771a8cb
96 _RtlUserThreadStart ntdll 0x7771a8a1
It outputs
QPainter::begin: Paint device returned engine == 0, type: 2 ASSERTION
FAILED: m_ptr
c:\work\build\qt5_workdir\w\s\qtwebkit\Source\WTF\wtf/OwnPtr.h(72) :
WTF::OwnPtr::operator ->
In function
bool MainWindow::waitForLoad(QWebView& view)
{
QEventLoop loopLoad;
QTimer timer;
QObject::connect(&view, SIGNAL(loadFinished(bool)), &loopLoad, SLOT(quit()));
QObject::connect(&view, SIGNAL(loadFinished(bool)), &timer, SLOT(stop()));
QObject::connect(&timer, SIGNAL(timeout()), &loopLoad, SLOT(quit()));
timer.start(timeout);
loopLoad.exec();
if(timer.isActive())
{
timer.stop();
view.stop();
return false;
}
return true;
}
On the line "loopLoad.exec();"
Please help me. What's wrong with my code? Or how to fix that? I ready to disable any user-controls, css, images and ect. Advise me how to make it work

Answer 1

I know the answer! To fix this problem, enable autoload images!