Application: kontact (4.7.4)
KDE Platform Version: 4.7.4 (4.7.4) (Compiled from sources)
Qt Version: 4.7.4
Operating System: Linux 3.2.1-gentoo-r2 x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
- What I was doing when the application crashed:
I just closed kontact. From backtrace you can see I had used the knode kpart, but the last open kpart was either kmail or akregator, I don't remember exactly.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff2d487a760 (LWP 27139))]

Thread 3 (Thread 0x7ff2bf140700 (LWP 27140)):
#0  0x00007ff2ccbe832c in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007ff2d12b6ed4 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib64/qt4/libQtWebKit.so.4
#2  0x00007ff2ccbe3c2c in start_thread () from /lib64/libpthread.so.0
#3  0x00007ff2d1e2c7bd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7ff2be83f700 (LWP 27141)):
#0  0x00007ff2d1e394ff in __libc_enable_asynccancel () from /lib64/libc.so.6
#1  0x00007ff2d1e23c68 in poll () from /lib64/libc.so.6
#2  0x00007ff2cba21d50 in g_main_context_iterate.clone.6 () from /usr/lib64/libglib-2.0.so.0
#3  0x00007ff2cba22201 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007ff2d31e5b46 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#5  0x00007ff2d31ba842 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#6  0x00007ff2d31baa84 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#7  0x00007ff2d30d333c in QThread::exec() () from /usr/lib64/qt4/libQtCore.so.4
#8  0x00007ff2d30d5b15 in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#9  0x00007ff2ccbe3c2c in start_thread () from /lib64/libpthread.so.0
#10 0x00007ff2d1e2c7bd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7ff2d487a760 (LWP 27139)):
[KCrash Handler]
#6  0x00007ff2d25ee58c in QWidget::window() const () from /usr/lib64/qt4/libQtGui.so.4
#7  0x00007ff2a7ae93ab in KNAccountManager::loadPasswordsAsync() () from /usr/lib64/libknodecommon.so.4
#8  0x00007ff2a7ae10a0 in KNode::Scheduler::addJob(KNJobData*) () from /usr/lib64/libknodecommon.so.4
#9  0x00007ff2a7ae2bda in KNJobConsumer::emitJob(KNJobData*) () from /usr/lib64/libknodecommon.so.4
#10 0x00007ff2a7af35bd in KNGroupManager::checkAll(boost::shared_ptr<KNNntpAccount>, bool) () from /usr/lib64/libknodecommon.so.4
#11 0x00007ff2a7af378d in KNGroupManager::checkAll(int, bool) () from /usr/lib64/libknodecommon.so.4
#12 0x00007ff2a7aee1a0 in KNNntpAccountIntervalChecking::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libknodecommon.so.4
#13 0x00007ff2d31cf917 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4
#14 0x00007ff2d31cf151 in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#15 0x00007ff2d25ade44 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#16 0x00007ff2d25b292a in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#17 0x00007ff2d3c237d6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#18 0x00007ff2d31bb433 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#19 0x00007ff2d31e82be in QTimerInfoList::activateTimers() () from /usr/lib64/qt4/libQtCore.so.4
#20 0x00007ff2d31e5438 in idleTimerSourceDispatch(_GSource*, int (*)(void*), void*) () from /usr/lib64/qt4/libQtCore.so.4
#21 0x00007ff2cba21842 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#22 0x00007ff2cba22020 in g_main_context_iterate.clone.6 () from /usr/lib64/libglib-2.0.so.0
#23 0x00007ff2cba22201 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#24 0x00007ff2d31e5b46 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#25 0x00007ff2d26519be in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtGui.so.4
#26 0x00007ff2d31ba842 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#27 0x00007ff2d31baa84 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#28 0x00007ff2d31bee13 in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4
#29 0x0000000000404447 in main ()

Reported using DrKonqi