Comment 0 for bug 1217693

I'm getting a crash relatively easily with webbrowser-app on Qt 5.1.1. Backtrace from x86 (where it happens right after loading ubuntu.com, on device I can browse a little while but it seems to be similar place where it crashes, ie. QSGRender):

---
QSGNode::appendChildNode (this=this@entry=0x7fffbcaf4b60, node=node@entry=0x7ffff7a47870 <QListData::shared_null>)
    at scenegraph/coreapi/qsgnode.cpp:432
432 scenegraph/coreapi/qsgnode.cpp: Tiedostoa tai hakemistoa ei ole.
(gdb) bt
#0 QSGNode::appendChildNode (this=this@entry=0x7fffbcaf4b60, node=node@entry=0x7ffff7a47870 <QListData::shared_null>)
    at scenegraph/coreapi/qsgnode.cpp:432
#1 0x00007fffc7de6bbb in WebviewThumbnailer::updatePaintNode (this=0xba0040, oldNode=0x0, updatePaintNodeData=<optimized out>)
    at /build/buildd/webbrowser-app-0.22+13.10.20130820.2/src/Ubuntu/Components/Extras/Browser/webview-thumbnailer.cpp:124
#2 0x00007ffff6b73258 in QQuickWindowPrivate::updateDirtyNode (this=this@entry=0x9c5590, item=item@entry=0xba0040)
    at items/qquickwindow.cpp:2441
#3 0x00007ffff6b74064 in QQuickWindowPrivate::updateDirtyNodes (this=this@entry=0x9c5590) at items/qquickwindow.cpp:2262
#4 0x00007ffff6b740bc in QQuickWindowPrivate::syncSceneGraph (this=this@entry=0x9c5590) at items/qquickwindow.cpp:308
#5 0x00007ffff6b54d52 in QSGRenderThread::sync (this=this@entry=0x9c5c80) at scenegraph/qsgthreadedrenderloop.cpp:530
#6 0x00007ffff6b54f78 in QSGRenderThread::syncAndRender (this=this@entry=0x9c5c80) at scenegraph/qsgthreadedrenderloop.cpp:569
#7 0x00007ffff6b56431 in QSGRenderThread::run (this=0x9c5c80) at scenegraph/qsgthreadedrenderloop.cpp:666
#8 0x00007ffff77fe6c0 in QThreadPrivate::start (arg=0x9c5c80) at thread/qthread_unix.cpp:345
#9 0x00007ffff5148f6e in start_thread (arg=0x7fffbcaf5700) at pthread_create.c:311
#10 0x00007ffff5457e2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

---