Application that crashed: kontact
Version of the application: 4.3.0 rc2
KDE Version: 4.2.96 (KDE 4.2.96 (KDE 4.3 RC2)) "release 140"
Qt Version: 4.5.2
Operating System: Linux 2.6.27.23-0.1-pae i686
Distribution: "openSUSE 11.1 (i586)"

What I was doing when the application crashed:
i deleted a to do list entry stored on egroupware via xml-rpc and tried to resync xmlrpc manually via right-click in the sources - crash

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[Current thread is 1 (Thread 0xb4567700 (LWP 368))]

Thread 2 (Thread 0xb114ab90 (LWP 370)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb579ae93 in ?? () from /lib/libc.so.6
#2  0xb572e4e1 in ?? () from /lib/libc.so.6
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 1 (Thread 0xb4567700 (LWP 368)):
[KCrash Handler]
#6  0xb572aa30 in ?? () from /lib/libc.so.6
#7  0xb572af3c in free () from /lib/libc.so.6
#8  0xb6495cbd in qFree (ptr=0x9113d90) at global/qmalloc.cpp:60
#9  0xb5be4080 in QRegion::cleanUp (x=0x9076750) at ../../src/corelib/tools/qvector.h:425
#10 0xb5be40fe in QRegion::operator= (this=0x89f2630, r=@0xbfa5e304) at painting/qregion.cpp:3917
#11 0xb5c45f21 in QX11PaintEngine::begin (this=0x83511b8, pdev=0x8119674) at painting/qpaintengine_x11.cpp:499
#12 0xb5b94bbb in QPainter::begin (this=0xbfa5e518, pd=0x8119674) at painting/qpainter.cpp:1771
#13 0xb5b95a58 in QPainter (this=0xbfa5e518, pd=0x844f4f8) at painting/qpainter.cpp:1411
#14 0xb5ac50d1 in QWidgetPrivate::drawWidget (this=0x8457918, pdev=0x8119674, rgn=@0xbfa5e680, offset=@0xbfa5e650, flags=68, sharedPainter=0x0, backingStore=0x80761b0) at kernel/qwidget.cpp:5044
#15 0xb5c54e45 in QWidgetBackingStore::sync (this=0x80761b0) at painting/qbackingstore.cpp:1261
#16 0xb5ab5476 in QWidgetPrivate::syncBackingStore (this=0x8175fd8) at kernel/qwidget.cpp:1603
#17 0xb5abd615 in QWidget::event (this=0x80814c0, event=0x9172de0) at kernel/qwidget.cpp:7827
#18 0xb5e6c1b7 in QMainWindow::event (this=0x80814c0, event=0x9172de0) at widgets/qmainwindow.cpp:1399
#19 0xb6c5bd47 in KMainWindow::event(QEvent*) () from /usr/lib/libkdeui.so.5
#20 0xb6ca159c in KXmlGuiWindow::event(QEvent*) () from /usr/lib/libkdeui.so.5
#21 0xb5a667fc in QApplicationPrivate::notify_helper (this=0x80747d8, receiver=0x80814c0, e=0x9172de0) at kernel/qapplication.cpp:4056
#22 0xb5a6ebd2 in QApplication::notify (this=0xbfa5efa8, receiver=0x80814c0, e=0x9172de0) at kernel/qapplication.cpp:4021
#23 0xb6b7819d in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#24 0xb659016b in QCoreApplication::notifyInternal (this=0xbfa5efa8, receiver=0x80814c0, event=0x9172de0) at kernel/qcoreapplication.cpp:610
#25 0xb6590db5 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8053708) at kernel/qcoreapplication.h:213
#26 0xb6590fad in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#27 0xb65bbc8f in postEventSourceDispatch (s=0x8077910) at kernel/qcoreapplication.h:218
#28 0xb4d2b9c8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#29 0xb4d2f083 in ?? () from /usr/lib/libglib-2.0.so.0
#30 0xb4d2f241 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#31 0xb65bb8d8 in QEventDispatcherGlib::processEvents (this=0x8053290, flags={i = -1079644552}) at kernel/qeventdispatcher_glib.cpp:327
#32 0xb5b06cc5 in QGuiEventDispatcherGlib::processEvents (this=0x8053290, flags={i = -1079644504}) at kernel/qguieventdispatcher_glib.cpp:202
#33 0xb658e78a in QEventLoop::processEvents (this=0xbfa5ef20, flags={i = -1079644440}) at kernel/qeventloop.cpp:149
#34 0xb658ebd2 in QEventLoop::exec (this=0xbfa5ef20, flags={i = -1079644376}) at kernel/qeventloop.cpp:201
#35 0xb6591079 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#36 0xb5a66677 in QApplication::exec () at kernel/qapplication.cpp:3525
#37 0x0804c04f in _start ()

Reported using DrKonqi