Application: kmail (4.9.5)
KDE Platform Version: 4.9.5
Qt Version: 4.8.4
Operating System: Linux 3.7.4-204.fc18.x86_64 x86_64
Distribution: "Fedora release 18 (Spherical Cow)"

-- Information about the crash:
- What I was doing when the application crashed:
Crashed when removing a recurring meeting by clicking the 'remove meeting from your calendar' in the cancellation email.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f78314c4880 (LWP 1970))]

Thread 5 (Thread 0x7f782659b700 (LWP 1974)):
#0  0x0000003d1420b5e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000031618169bd in WTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQtWebKit.so.4
#2  0x0000003161816ac9 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQtWebKit.so.4
#3  0x0000003d14207d15 in start_thread () from /lib64/libpthread.so.0
#4  0x0000003d13af246d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f7825c9a700 (LWP 1975)):
#0  0x0000003d13ae998d in poll () from /lib64/libc.so.6
#1  0x0000003d13647d44 in g_main_context_iterate.isra.24 () from /lib64/libglib-2.0.so.0
#2  0x0000003d13647e64 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x0000003153fa60f6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#4  0x0000003153f767df in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#5  0x0000003153f76a68 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#6  0x0000003153e78950 in QThread::exec() () from /lib64/libQtCore.so.4
#7  0x0000003153e7b92c in QThreadPrivate::start(void*) () from /lib64/libQtCore.so.4
#8  0x0000003d14207d15 in start_thread () from /lib64/libpthread.so.0
#9  0x0000003d13af246d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f77dfbe8700 (LWP 12174)):
#0  0x0000003d1420b952 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000003153e7bde7 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib64/libQtCore.so.4
#2  0x0000003153e6f66f in QThreadPoolThread::run() () from /lib64/libQtCore.so.4
#3  0x0000003153e7b92c in QThreadPrivate::start(void*) () from /lib64/libQtCore.so.4
#4  0x0000003d14207d15 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003d13af246d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f77ded4f700 (LWP 12175)):
#0  0x0000003d1420b952 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000003153e7bde7 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib64/libQtCore.so.4
#2  0x0000003153e6f66f in QThreadPoolThread::run() () from /lib64/libQtCore.so.4
#3  0x0000003153e7b92c in QThreadPrivate::start(void*) () from /lib64/libQtCore.so.4
#4  0x0000003d14207d15 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003d13af246d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f78314c4880 (LWP 1970)):
[KCrash Handler]
#5  0x0000003165099e20 in CalendarSupport::NepomukCalendar::weakPointer() const () from /lib64/libcalendarsupport.so.4
#6  0x000000316507d623 in CalendarSupport::Groupware::calendarJobFinished(bool, QString const&) () from /lib64/libcalendarsupport.so.4
#7  0x0000003153f8c39e in QObject::event(QEvent*) () from /lib64/libQtCore.so.4
#8  0x00000031557ca5cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#9  0x00000031557cea4a in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#10 0x0000003156646916 in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#11 0x0000003153f77a8e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#12 0x0000003153f7b541 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQtCore.so.4
#13 0x0000003153fa5f43 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQtCore.so.4
#14 0x0000003d13647a75 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#15 0x0000003d13647da8 in g_main_context_iterate.isra.24 () from /lib64/libglib-2.0.so.0
#16 0x0000003d13647e64 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#17 0x0000003153fa60d6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#18 0x000000315586a73e in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtGui.so.4
#19 0x0000003153f767df in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#20 0x0000003153f76a68 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#21 0x0000003153f7b858 in QCoreApplication::exec() () from /lib64/libQtCore.so.4
#22 0x0000000000402e92 in main ()

Reported using DrKonqi