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 142"
Qt Version: 4.5.2
Operating System: Linux 2.6.27.23-0.1-default x86_64

What I was doing when the application crashed:
After I have sent an e-mail (and it got put in my sent box, which is on the same IMAP), Kontact just crashes. Not every time, but most of the time. This was after the latest updates (see version info).

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#5  0x00007fe7d5d11a28 in KMail::SearchJob::slotSearchDataSingleMessage (this=0x17f0f90, job=<value optimized out>, data=@0x7ffff5bd8620) at /usr/src/debug/kdepim-4.2.96/kmail/searchjob.cpp:423
#6  0x00007fe7d5d15517 in KMail::SearchJob::qt_metacall (this=0x17f0f90, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7ffff5bd8360)
    at /usr/src/debug/kdepim-4.2.96/build/kmail/searchjob.moc:89
#7  0x00007fe7e927d6e2 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#8  0x00007fe7e98b9271 in KJob::infoMessage(KJob*, QString const&, QString const&) () from /usr/lib64/libkdecore.so.5
#9  0x00007fe7ea5808e7 in ?? () from /usr/lib64/libkio.so.5
#10 0x00007fe7ea584026 in KIO::SimpleJob::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkio.so.5
#11 0x00007fe7e927d6e2 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#12 0x00007fe7ea6430c5 in KIO::SlaveInterface::infoMessage(QString const&) () from /usr/lib64/libkio.so.5
#13 0x00007fe7ea646680 in KIO::SlaveInterface::dispatch(int, QByteArray const&) () from /usr/lib64/libkio.so.5
#14 0x00007fe7ea643792 in KIO::SlaveInterface::dispatch() () from /usr/lib64/libkio.so.5
#15 0x00007fe7ea6362f3 in KIO::Slave::gotInput() () from /usr/lib64/libkio.so.5
#16 0x00007fe7ea638558 in KIO::Slave::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkio.so.5
#17 0x00007fe7e927d6e2 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#18 0x00007fe7ea552a41 in ?? () from /usr/lib64/libkio.so.5
#19 0x00007fe7ea552e9a in KIO::Connection::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkio.so.5
#20 0x00007fe7e92788a8 in QObject::event(QEvent*) () from /usr/lib64/libQtCore.so.4
#21 0x00007fe7e7f86b0d in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#22 0x00007fe7e7f8ed9a in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#23 0x00007fe7ea0a563b in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#24 0x00007fe7e926894c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#25 0x00007fe7e92695ca in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQtCore.so.4
#26 0x00007fe7e92920b3 in ?? () from /usr/lib64/libQtCore.so.4
#27 0x00007fe7e2b3d0fb in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#28 0x00007fe7e2b408cd in ?? () from /usr/lib64/libglib-2.0.so.0
#29 0x00007fe7e2b40a8b in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#30 0x00007fe7e9291d3f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#31 0x00007fe7e801dfef in ?? () from /usr/lib64/libQtGui.so.4
#32 0x00007fe7e92671d2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#33 0x00007fe7e92675a4 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#34 0x00007fe7e9269894 in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#35 0x0000000000404995 in main (argc=1, argv=0x7ffff5bd99e8) at /usr/src/debug/kdepim-4.2.96/kontact/src/main.cpp:218

Reported using DrKonqi