Application that crashed: kontact
Version of the application: 4.3.0 rc3
KDE Version: 4.2.98 (KDE 4.2.98 (KDE 4.3 RC3))
Qt Version: 4.5.1
Operating System: Linux 2.6.28-14-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I was filtering mail with a newly made filter using the Ctrl+J shortcut, while Kmail was downloading mail from a server.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[Current thread is 0 (LWP 27663)]

Thread 4 (Thread 0x7f077ff40950 (LWP 4043)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f07975d9ce9 in QWaitCondition::wait (this=0x413b880, mutex=0x413b878, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007f0798f715dc in QHostInfoAgent::run (this=0x413b860) at kernel/qhostinfo.cpp:260
#3  0x00007f07975d8d02 in QThreadPrivate::start (arg=0x413b860) at thread/qthread_unix.cpp:189
#4  0x00007f0793eb33ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007f0796b43fcd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f076e74f950 (LWP 5883)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:217
#1  0x00007f0773662f91 in ?? () from /usr/lib/libxine.so.1
#2  0x00007f0793eb33ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#3  0x00007f0796b43fcd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f076d6df950 (LWP 5884)):
#0  0x00007f0793eb4a81 in __pthread_mutex_lock (mutex=0x3f70308) at pthread_mutex_lock.c:87
#1  0x00007f0790e12b33 in g_main_context_query () from /usr/lib/libglib-2.0.so.0
#2  0x00007f0790e17627 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f0790e17a7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f07976eb54e in QEventDispatcherGlib::processEvents (this=0x462a3b0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:326
#5  0x00007f07976c06a2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 1835921360}) at kernel/qeventloop.cpp:149
#6  0x00007f07976c0a6d in QEventLoop::exec (this=0x7f076d6df010, flags={i = 1835921440}) at kernel/qeventloop.cpp:200
#7  0x00007f07975d5d68 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#8  0x00007f07738be62c in Phonon::Xine::XineThread::run (this=0x381d9e0) at /build/buildd/phonon-4.3.1/xine/xinethread.cpp:143
#9  0x00007f07975d8d02 in QThreadPrivate::start (arg=0x381d9e0) at thread/qthread_unix.cpp:189
#10 0x00007f0793eb33ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#11 0x00007f0796b43fcd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f079d153750 (LWP 27663)):
[KCrash Handler]
#5  0x0000000100000002 in ?? ()
#6  0x00007f0783db5dc1 in KMReaderWin::parseMsg (this=0x25a5210, aMsg=0xa5f9210) at /build/buildd/kdepim-4.2.98/kmail/kmreaderwin.cpp:1665
#7  0x00007f0783da14ea in KMReaderWin::displayMessage (this=0x25a5210) at /build/buildd/kdepim-4.2.98/kmail/kmreaderwin.cpp:1589
#8  0x00007f0783da16d5 in KMReaderWin::updateReaderWin (this=0x25a5210) at /build/buildd/kdepim-4.2.98/kmail/kmreaderwin.cpp:1529
#9  0x00007f0783daff35 in KMReaderWin::qt_metacall (this=0x25a5210, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffa51a7950)
    at /build/buildd/kdepim-4.2.98/obj-x86_64-linux-gnu/kmail/kmreaderwin.moc:165
#10 0x00007f07976d78d2 in QMetaObject::activate (sender=0x25a52a8, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x1) at kernel/qobject.cpp:3120
#11 0x00007f07976d1bb3 in QObject::event (this=0x25a52a8, e=0x1e6d944) at kernel/qobject.cpp:1082
#12 0x00007f0798240b9d in QApplicationPrivate::notify_helper (this=0x1ea7a70, receiver=0x25a52a8, e=0x7fffa51a8000) at kernel/qapplication.cpp:4057
#13 0x00007f0798248dea in QApplication::notify (this=0x7fffa51a8350, receiver=0x25a52a8, e=0x7fffa51a8000) at kernel/qapplication.cpp:4022
#14 0x00007f079967071b in KApplication::notify (this=0x7fffa51a8350, receiver=0x25a52a8, event=0x7fffa51a8000) at /build/buildd/kde4libs-4.2.98a/kdeui/kernel/kapplication.cpp:302
#15 0x00007f07976c1dfc in QCoreApplication::notifyInternal (this=0x7fffa51a8350, receiver=0x25a52a8, event=0x7fffa51a8000) at kernel/qcoreapplication.cpp:610
#16 0x00007f07976eeeb6 in QTimerInfoList::activateTimers (this=0x1ea0460) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#17 0x00007f07976eb5cd in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:164
#18 0x00007f0790e1420a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#19 0x00007f0790e178e0 in ?? () from /usr/lib/libglib-2.0.so.0
#20 0x00007f0790e17a7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#21 0x00007f07976eb52f in QEventDispatcherGlib::processEvents (this=0x1e6d0a0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:324
#22 0x00007f07982d970f in QGuiEventDispatcherGlib::processEvents (this=0xa5f9210, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#23 0x00007f07976c06a2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -1524989328}) at kernel/qeventloop.cpp:149
#24 0x00007f07976c0a6d in QEventLoop::exec (this=0x7fffa51a82b0, flags={i = -1524989248}) at kernel/qeventloop.cpp:200
#25 0x00007f07976c2d34 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#26 0x0000000000404945 in main (argc=1, argv=0x7fffa51a8a38) at /build/buildd/kdepim-4.2.98/kontact/src/main.cpp:218

Reported using DrKonqi