Application that crashed: konversation
Version of the application: 1.2.3
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-trunk-amd64 x86_64
Distribution: Debian GNU/Linux testing (squeeze)

What I was doing when the application crashed:
Konversation crashed when changing from the CDE to the Windows style. Prior to that I had changed between some other styles, not sure if that is relevant.

 -- Backtrace:
Application: Konversation (konversation), signal: Segmentation fault
[KCrash Handler]
#5  0x00007f8344851c5f in QWidget::testAttribute_helper (this=0x14d72a0, attribute=Qt::WA_WState_Polished) at kernel/qwidget.cpp:10533
#6  0x00007f834480bbc3 in QWidget::testAttribute (style=0x7f832c1b7660) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:1026
#7  QApplication::setStyle (style=0x7f832c1b7660) at kernel/qapplication.cpp:1416
#8  0x00007f834632df6d in KGlobalSettings::Private::applyGUIStyle (this=0x14dda90) at ../../kdeui/kernel/kglobalsettings.cpp:903
#9  0x00007f834632e03d in KGlobalSettings::Private::kdisplaySetStyle (this=0x14dda90) at ../../kdeui/kernel/kglobalsettings.cpp:988
#10 0x00007f8346330f57 in KGlobalSettings::Private::_k_slotNotifyChange (this=0x14dda90, changeType=<value optimized out>, arg=0) at ../../kdeui/kernel/kglobalsettings.cpp:811
#11 0x00007f83463311e3 in KGlobalSettings::qt_metacall (this=0x14b3610, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffa40f9cb0) at ./kglobalsettings.moc:92
#12 0x00007f83457a7311 in QDBusConnectionPrivate::deliverCall (this=<value optimized out>, object=<value optimized out>, msg=<value optimized out>, metaTypes=..., slotIdx=<value optimized out>)
    at qdbusintegrator.cpp:904
#13 0x00007f83457b1e5f in QDBusCallDeliveryEvent::placeMetaCall (this=0x4, object=0x42) at qdbusintegrator_p.h:101
#14 0x00007f8345479b59 in QObject::event (this=0x14b3610, e=0x7f832c20f6c0) at kernel/qobject.cpp:1248
#15 0x00007f83448088fc in QApplicationPrivate::notify_helper (this=0x145f580, receiver=0x14b3610, e=0x7f832c20f6c0) at kernel/qapplication.cpp:4300
#16 0x00007f834480eddb in QApplication::notify (this=0x7fffa40fa950, receiver=0x14b3610, e=0x7f832c20f6c0) at kernel/qapplication.cpp:4183
#17 0x00007f8346306de6 in KApplication::notify (this=0x7fffa40fa950, receiver=0x14b3610, event=0x7f832c20f6c0) at ../../kdeui/kernel/kapplication.cpp:302
#18 0x00007f8345469f1c in QCoreApplication::notifyInternal (this=0x7fffa40fa950, receiver=0x14b3610, event=0x7f832c20f6c0) at kernel/qcoreapplication.cpp:704
#19 0x00007f834546c697 in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x142a2f0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x142a2f0) at kernel/qcoreapplication.cpp:1345
#21 0x00007f8345493833 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#22 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276
#23 0x00007f83406366c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#24 0x00007f834063a538 in ?? () from /lib/libglib-2.0.so.0
#25 0x00007f834063a6ec in g_main_context_iteration () from /lib/libglib-2.0.so.0
#26 0x00007f8345493373 in QEventDispatcherGlib::processEvents (this=0x1429fb0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#27 0x00007f83448b83de in QGuiEventDispatcherGlib::processEvents (this=0x14d72a0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#28 0x00007f8345468842 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#29 0x00007f8345468c1c in QEventLoop::exec (this=0x7fffa40fa8a0, flags=) at kernel/qeventloop.cpp:201
#30 0x00007f834546c95b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#31 0x00000000004698d0 in _start ()

Reported using DrKonqi