[webkit-qt] Crash on exit with multiple WK2 WebView's

Milian Wolff milian.wolff at kdab.com
Thu Jan 24 05:04:32 PST 2013

Hey all,

we encounter a crash on exit in an app with multiple QML2 WebViews, see [1].

The valgrind report you see there was created with:

valgrind --trace-children=yes --smc-check=all ./MyApp

It also shows tons of uninitialised value usages throughout WebKit and 

Under [2] you can find a backtrace acquired with GDB. It shows that the 
m_rootLayer in LayerTreeRenderer is invalid, when called from 
LayerTreeRenderer::purgeGLResources. Other places contain explicit checks for 
the validity, so maybe the check is just missing there?


[1]: http://paste.kde.org/655388/
[2]: http://paste.kde.org/655394/

Milian Wolff | milian.wolff at kdab.com | Software Engineer
KDAB (Deutschland) GmbH&Co KG, a KDAB Group company
Tel. Germany +49-30-521325470, Sweden (HQ) +46-563-540090
KDAB - Qt Experts - Platform-independent software solutions
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