Bug 39951 – Crash when using QImage

• Status: RESOLVED
• Resolution: INVALID
• Component: WebKit Qt

[Florent Revelut]

Environment:
- Qt 4.6.2
- Windows XP 

When trying to extract pictures from QwebView, we have incoherent result and sometimes crashes.

Using provided application:
- run setup.bat
- qmake -r
- nmake

Then run (either release or debug).

This will generate a batch of images in subfolder pictures, expressing the differential update (exact position and size is expressed in name file)

Issues:
- some pictures are incoherent : test693_50_261_750_104.png
- clic button : View_fullscreen (the one circled in red in "overview.jpg") and hold it : it crashes.

crash looks like a race condition on FrameView.cpp, line 1013-1014:
    unsigned size = m_repaintRects.size();
    for (unsigned i = 0; i < size; i++)
        ScrollView::repaintContentRectangle(m_repaintRects[i], false);

When the crash happens, size != m_repaintRects.size()

[Kent Hansen]

The description mentions a "provided application" but none is attached.

[Florent Revelut]

Created attachment 59243 [details]
application

added missing application to reproduce crash