Application: kontact (4.9.1)
KDE Platform Version: 4.9.1 "release 561"
Qt Version: 4.8.3
Operating System: Linux 3.1.10-1.16-desktop x86_64
Distribution: "openSUSE 12.1 (x86_64)"

-- Information about the crash:
I had added an event to the local calendar and was copying it to a linked egroupware calendar.

The crash can be reproduced every time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f81650ab760 (LWP 2727))]

Thread 4 (Thread 0x7f814cb94700 (LWP 2744)):
#0  0x00007f815cde6e6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f816186bf52 in ?? () from /usr/lib64/libQtWebKit.so.4
#2  0x00007f816186bf89 in ?? () from /usr/lib64/libQtWebKit.so.4
#3  0x00007f815cde2f05 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f81625ae10d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f814c27b700 (LWP 2748)):
#0  0x00007f81625a4ff3 in poll () from /lib64/libc.so.6
#1  0x00007f815c8d3ae8 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f815c8d3fa9 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f8162d1e666 in QEventDispatcherGlib::processEvents (this=0x7f81440008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f8162cee162 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f8162cee3b7 in QEventLoop::exec (this=0x7f814c27ae00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f8162bec687 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f8162bef6ec in QThreadPrivate::start (arg=0x64a260) at thread/qthread_unix.cpp:338
#8  0x00007f815cde2f05 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f81625ae10d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f80f7df0700 (LWP 16299)):
#0  0x00007f81625a4ff3 in poll () from /lib64/libc.so.6
#1  0x00007f815c8d3ae8 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f815c8d3fa9 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f8162d1e666 in QEventDispatcherGlib::processEvents (this=0x7f80f00008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f8162cee162 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f8162cee3b7 in QEventLoop::exec (this=0x7f80f7defdd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f8162bec687 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f8162ccdc0f in QInotifyFileSystemWatcherEngine::run (this=0x5865ff0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f8162bef6ec in QThreadPrivate::start (arg=0x5865ff0) at thread/qthread_unix.cpp:338
#9  0x00007f815cde2f05 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f81625ae10d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f81650ab760 (LWP 2727)):
[KCrash Handler]
#6  0x00007f80e7308b69 in ~QPointer (this=<optimized out>, __in_chrg=<optimized out>) at /usr/src/debug/kdepim-4.9.1/build/calendarviews/eventviews/agenda.moc:409
#7  EventViews::Agenda::endItemAction (this=0x2064bf0) at /usr/src/debug/kdepim-4.9.1/calendarviews/eventviews/agenda/agenda.cpp:1251
#8  0x00007f80e730a465 in EventViews::Agenda::eventFilter_mouse (this=0x2064bf0, object=0x8eb75c0, me=<optimized out>) at /usr/src/debug/kdepim-4.9.1/calendarviews/eventviews/agenda/agenda.cpp:700
#9  0x00007f80e7303ef9 in EventViews::Agenda::eventFilter (this=0x2064bf0, object=0x8eb75c0, event=<optimized out>) at /usr/src/debug/kdepim-4.9.1/calendarviews/eventviews/agenda/agenda.cpp:501
#10 0x00007f8162cef7b8 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x8eb75c0, event=0x7fff750c1fd0) at kernel/qcoreapplication.cpp:1025
#11 0x00007f81637090af in notify_helper (e=0x7fff750c1fd0, receiver=0x8eb75c0, this=0x63c350) at kernel/qapplication.cpp:4553
#12 QApplicationPrivate::notify_helper (this=0x63c350, receiver=0x8eb75c0, e=0x7fff750c1fd0) at kernel/qapplication.cpp:4529
#13 0x00007f816370e783 in QApplication::notify (this=<optimized out>, receiver=0x8eb75c0, e=0x7fff750c1fd0) at kernel/qapplication.cpp:4100
#14 0x00007f816444e246 in KApplication::notify (this=0x7fff750c2cd0, receiver=0x8eb75c0, event=0x7fff750c1fd0) at /usr/src/debug/kdelibs-4.9.1/kdeui/kernel/kapplication.cpp:311
#15 0x00007f8162cef62c in QCoreApplication::notifyInternal (this=0x7fff750c2cd0, receiver=0x8eb75c0, event=0x7fff750c1fd0) at kernel/qcoreapplication.cpp:915
#16 0x00007f816370a0b2 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#17 QApplicationPrivate::sendMouseEvent (receiver=0x8eb75c0, event=0x7fff750c1fd0, alienWidget=0x8eb75c0, nativeWidget=0x1fe01c0, buttonDown=0x8eb75c0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3168
#18 0x00007f8163785fe5 in QETWidget::translateMouseEvent (this=0x1fe01c0, event=<optimized out>) at kernel/qapplication_x11.cpp:4518
#19 0x00007f8163784eaa in QApplication::x11ProcessEvent (this=0x7fff750c2cd0, event=0x7fff750c2890) at kernel/qapplication_x11.cpp:3641
#20 0x00007f81637acc92 in x11EventSourceDispatch (s=0x643e50, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#21 0x00007f815c8d35dd in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#22 0x00007f815c8d3dd8 in ?? () from /usr/lib64/libglib-2.0.so.0
#23 0x00007f815c8d3fa9 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#24 0x00007f8162d1e5ff in QEventDispatcherGlib::processEvents (this=0x60d110, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#25 0x00007f81637ac91e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#26 0x00007f8162cee162 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#27 0x00007f8162cee3b7 in QEventLoop::exec (this=0x7fff750c2c60, flags=...) at kernel/qeventloop.cpp:204
#28 0x00007f8162cf31d5 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#29 0x00000000004038c9 in ?? ()
#30 0x00007f81624f423d in __libc_start_main () from /lib64/libc.so.6
#31 0x0000000000403e31 in _start ()

Reported using DrKonqi