I'm using an Genuis F-610 tablet (wizardpen-Driver) configured by HAL (not by
xorg.conf - xorg.conf works bad)

I am not able to reproduce this crash, it works fine with my tablet so far.
Does it crash every time? Maybe you can install debug packages for better
backtraces.
Please also describe step-by-step what you do that leads to a crash.

I have made a screencast, you can look how to reproduce...

NOTE: Write very fast
(Perhaps KWord have problems with small i points.)

Created an attachment (id=42546) [details]
screencast

Does it is only to install the debug packets?
Or need I start KWord in debug-mode?
Thanks.

At bottom-right you can choos the precision it's by default at curve
Curve is not the best for writing, perhaps the letters not good readable

If I choose Raw instead of curve Kword does not crash...
BUT previously I must choose the freehand tool again...

Using either the tablet or the mouse I get the same issue. The QEventLoop::exec
gets an exception from one of the events and then itself throws a new one
causing the app to quit.

It was much quicker to reproduce using the mouse than using the tablet here,
btw. Not sure why ;)
Draw some text using the freehand tool, causing loads of not-so big strokes to
be added to the shape.

#0  0x00007ffff288f1c0 in __cxa_throw () from /usr/lib/libstdc++.so.6
#1  0x00007ffff2d75022 in qBadAlloc () at
/home/zander/work/qt46/src/corelib/global/qglobal.cpp:2003
#2  0x00007ffff40ebbec in QVector<QPointF>::realloc (this=0x7fffffffc320,
asize=67108863, aalloc=134217727)
    at ../../include/QtCore/../../../../../qt46/src/corelib/tools/qvector.h:480
#3  0x00007ffff41298de in QVector<QPointF>::append (this=0x7fffffffc320,
t=<value optimized out>)
    at ../../include/QtCore/../../../../../qt46/src/corelib/tools/qvector.h:547
#4  0x00007ffff4123829 in QBezier::addToPolygon (this=<value optimized out>,
polygon=0x7fffffffc320)
    at /home/zander/work/qt46/src/gui/painting/qbezier.cpp:224
#5  0x00007ffff41882b2 in QPainterPath::toSubpathPolygons (this=<value
optimized out>, matrix=...)
    at /home/zander/work/qt46/src/gui/painting/qpainterpath.cpp:1507
#6  0x00007ffff41885d3 in QPainterPath::toFillPolygon (this=0x7ffff2ac0030,
matrix=...)
    at /home/zander/work/qt46/src/gui/painting/qpainterpath.cpp:2687
#7  0x00007ffff4188932 in QPainterPath::toFillPolygon (this=0x7fffffffc650,
matrix=<value optimized out>)
    at /home/zander/work/qt46/src/gui/painting/qpainterpath.cpp:2707
#8  0x00007fffe65ca87d in Outline::init(QMatrix const&, KoShape*, double) ()
   from
/home/zander/work/kde/build-qt46-release/installed/lib/libkwordprivate.so.7
#9  0x00007fffe65c8834 in KWTextDocumentLayout::layout() ()
   from
/home/zander/work/kde/build-qt46-release/installed/lib/libkwordprivate.so.7
#10 0x00007fffe65c9f1b in KWTextDocumentLayout::relayout() ()
   from
/home/zander/work/kde/build-qt46-release/installed/lib/libkwordprivate.so.7
#11 0x00007ffff704f0fb in KoTextDocumentLayout::qt_metacall(QMetaObject::Call,
int, void**) ()
   from /home/zander/work/kde/build-qt46-release/installed/lib/libkotext.so.7
#12 0x00007ffff2e84c76 in QMetaObject::activate (sender=0xab7060, m=<value
optimized out>, local_signal_index=<value optimized out>, 
    argv=0x0) at /home/zander/work/qt46/src/corelib/kernel/qobject.cpp:3287
#13 0x00007ffff2e8c0ef in QSingleShotTimer::timerEvent (this=0xab7060) at
/home/zander/work/qt46/src/corelib/kernel/qtimer.cpp:308
#14 0x00007ffff2e81503 in QObject::event (this=0xab7060, e=0x7fffffffd680) at
/home/zander/work/qt46/src/corelib/kernel/qobject.cpp:1204
#15 0x00007ffff401c3cc in QApplicationPrivate::notify_helper (this=0x636230,
receiver=0xab7060, e=0x7fffffffd680)


Looks like this line is the one that caused the crash;
        QPainterPath path =  matrix.map(shape->outline());

Yes with the mouse I can let crash Kword too...

SVN commit 1112981 by zander:

Fix NaN creation on height or width zero.

BUG:231846

 M  +9 -2      KWTextDocumentLayout.cpp  


WebSVN link: http://websvn.kde.org/?view=rev&revision=1112981