Application that crashed: kded4
Version of the application: $Id: kded.cpp 944898 2009-03-26 13:01:25Z dfaure $
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.29.4-167.fc11.i686.PAE i686
Distribution: "Fedora release 11 (Leonidas)"

What I was doing when the application crashed:
KDE daemon crashes shortly after logging in. This seems to happen only once per session and always within a few minutes of logging in. This crash occured immediately after launching an application from a desktop (folderview) icon.

 -- Backtrace:
Application: KDE Daemon (kded4), signal: Aborted
[Current thread is 1 (Thread 0xb8082780 (LWP 2025))]

Thread 2 (Thread 0xad99eb70 (LWP 2270)):
#0  0x0054f1e2 in __pthread_mutex_unlock_usercnt (mutex=<value optimized out>, mutex=<value optimized out>, decr=<value optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=<value optimized out>, mutex=<value optimized out>, decr=<value optimized out>) at pthread_mutex_unlock.c:289
#2  0x01164635 in ?? () from /lib/libglib-2.0.so.0
#3  0x0116496a in g_main_context_iteration () from /lib/libglib-2.0.so.0
#4  0x022ec627 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#5  0x022c00d9 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#6  0x022c052a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#7  0x021cdff3 in QThread::exec() () from /usr/lib/libQtCore.so.4
#8  0x022a2b4b in ?? () from /usr/lib/libQtCore.so.4
#9  0x021d12f2 in ?? () from /usr/lib/libQtCore.so.4
#10 0x0054b935 in start_thread (arg=0xad99eb70) at pthread_create.c:297
#11 0x0109882e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb8082780 (LWP 2025)):
[KCrash Handler]
#6  0x005f1424 in __kernel_vsyscall ()
#7  0x00fe57c1 in *__GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#8  0x00fe7092 in *__GI_abort () at abort.c:88
#9  0x021c8f8c in qt_message_output(QtMsgType, char const*) () from /usr/lib/libQtCore.so.4
#10 0x021c907e in qFatal(char const*, ...) () from /usr/lib/libQtCore.so.4
#11 0x021c9175 in qt_assert(char const*, char const*, int) () from /usr/lib/libQtCore.so.4
#12 0x0251a8bc in QString PackageKit::Util::enumToString<PackageKit::Client>(int, char const*, QString const&) () from /usr/lib/libpackagekit-qt.so.11
#13 0x025101a3 in PackageKit::Client::getTimeSinceAction(PackageKit::Client::Action) () from /usr/lib/libpackagekit-qt.so.11
#14 0x027f680e in ?? () from /usr/lib/kde4/kded_kpackagekitd.so
#15 0x027f5de3 in QMetaObject::changeGuard(QObject**, QObject*) () from /usr/lib/kde4/kded_kpackagekitd.so
#16 0x022d7853 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#17 0x022d84b2 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#18 0x02311b47 in QTimer::timeout() () from /usr/lib/libQtCore.so.4
#19 0x022dcf8e in QTimer::timerEvent(QTimerEvent*) () from /usr/lib/libQtCore.so.4
#20 0x022d196f in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#21 0x03cc0974 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#22 0x03cc80e9 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#23 0x002d119a in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#24 0x022c1b0b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#25 0x022eed7e in ?? () from /usr/lib/libQtCore.so.4
#26 0x022ec6a0 in ?? () from /usr/lib/libQtCore.so.4
#27 0x011611e8 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#28 0x011647f8 in ?? () from /lib/libglib-2.0.so.0
#29 0x0116496a in g_main_context_iteration () from /lib/libglib-2.0.so.0
#30 0x022ec5ec in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#31 0x03d5fcb5 in ?? () from /usr/lib/libQtGui.so.4
#32 0x022c00d9 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#33 0x022c052a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#34 0x022c29af in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#35 0x03cc07f7 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#36 0x00fb471e in kdemain () from /usr/lib/libkdeinit4_kded4.so
#37 0x0804868b in _start ()

Reported using DrKonqi