Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.2
Operating System: Linux 3.2.29 x86_64
Distribution (Platform): Slackware Packages

-- Information about the crash:
- What I was doing when the application crashed:
HD-formatted with clean install of Slackware 64 from purchased dvd at the Slackware store, updated system with slackpkg, by default dbus "rc.messagebus" in system setup is enabled via pkgtool services.

- Unusual behavior I noticed:
Used startx to log into root and setup the desktop, enabled saveing the session at users request. logged out killed graphics session, installed nvidia drivers from nvidia.com...
created user account used kdm;exit logged in once it was fine, consecutive logins and this error came up every time.

- Custom settings of the application:
I'm great but I'm not that great.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (kdeinit4), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd41fed77c0 (LWP 6829))]

Thread 3 (Thread 0x7fd4008f6700 (LWP 6830)):
#0  0x00007fd41cadf4cf in poll () from /lib64/libc.so.6
#1  0x00007fd419060f04 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fd419061024 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fd41e8d3c36 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt/lib/libQtCore.so.4
#4  0x00007fd41e8a480f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt/lib/libQtCore.so.4
#5  0x00007fd41e8a4a98 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt/lib/libQtCore.so.4
#6  0x00007fd41e7a8230 in QThread::exec() () from /usr/lib64/qt/lib/libQtCore.so.4
#7  0x00007fd41e8853cf in ?? () from /usr/lib64/qt/lib/libQtCore.so.4
#8  0x00007fd41e7ab17b in ?? () from /usr/lib64/qt/lib/libQtCore.so.4
#9  0x00007fd40d2aa3a4 in ?? () from /usr/lib64/libGL.so.1
#10 0x00007fd41e50aeae in start_thread () from /lib64/libpthread.so.0
#11 0x00007fd41cae7fed in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fd3f692b700 (LWP 6831)):
#0  0x00007fd41e50ea94 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fd411292f37 in ?? () from /usr/lib64/qt/lib/libQtScript.so.4
#2  0x00007fd411292f69 in ?? () from /usr/lib64/qt/lib/libQtScript.so.4
#3  0x00007fd40d2aa3a4 in ?? () from /usr/lib64/libGL.so.1
#4  0x00007fd41e50aeae in start_thread () from /lib64/libpthread.so.0
#5  0x00007fd41cae7fed in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fd41fed77c0 (LWP 6829)):
[KCrash Handler]
#5  0x00007fd41ec31cc0 in QDBusMessage::arguments() const () from /usr/lib64/qt/lib/libQtDBus.so.4
#6  0x00007fd41ec6101b in QDBusPendingReplyData::argumentAt(int) const () from /usr/lib64/qt/lib/libQtDBus.so.4
#7  0x00007fd3f32636c3 in NMNetworkManagerNm09::NMNetworkManagerNm09(QObject*, QList<QVariant> const&) () from /usr/lib64/kde4/solid_networkmanager09.so
#8  0x00007fd3f325fa17 in ?? () from /usr/lib64/kde4/solid_networkmanager09.so
#9  0x00007fd41f091c25 in KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) () from /usr/lib64/libkdecore.so.5
#10 0x00007fd3f3f995f9 in ?? () from /usr/lib64/libsolidcontrolnm09.so.4
#11 0x00007fd3f3f9bf0a in ?? () from /usr/lib64/libsolidcontrolnm09.so.4
#12 0x00007fd3f3f9e3ce in Solid::Control::NetworkManagerNm09::networkInterfaces() () from /usr/lib64/libsolidcontrolnm09.so.4
#13 0x00007fd3f4aba3dd in ?? () from /usr/lib64/kde4/plasma_applet_networkmanagement.so
#14 0x00007fd3f4abc757 in ?? () from /usr/lib64/kde4/plasma_applet_networkmanagement.so
#15 0x00007fd41f091c25 in KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) () from /usr/lib64/libkdecore.so.5
#16 0x00007fd41324555c in Plasma::PluginLoader::loadApplet(QString const&, unsigned int, QList<QVariant> const&) () from /usr/lib64/libplasma.so.3
#17 0x00007fd400d34b2c in ?? () from /usr/lib64/kde4/plasma_applet_systemtray.so
#18 0x00007fd400d3367e in ?? () from /usr/lib64/kde4/plasma_applet_systemtray.so
#19 0x00007fd400d33d66 in ?? () from /usr/lib64/kde4/plasma_applet_systemtray.so
#20 0x00007fd400d3e5ea in ?? () from /usr/lib64/kde4/plasma_applet_systemtray.so
#21 0x00007fd400d3c601 in ?? () from /usr/lib64/kde4/plasma_applet_systemtray.so
#22 0x00007fd413203190 in ?? () from /usr/lib64/libplasma.so.3
#23 0x00007fd413211c0a in ?? () from /usr/lib64/libplasma.so.3
#24 0x00007fd41322536b in ?? () from /usr/lib64/libplasma.so.3
#25 0x00007fd413225fc4 in Plasma::Corona::loadLayout(QString const&) () from /usr/lib64/libplasma.so.3
#26 0x00007fd41322608c in Plasma::Corona::initializeLayout(QString const&) () from /usr/lib64/libplasma.so.3
#27 0x00007fd40a6d8e53 in ?? () from /usr/lib64/libkdeinit4_plasma-desktop.so
#28 0x00007fd40a6d919d in ?? () from /usr/lib64/libkdeinit4_plasma-desktop.so
#29 0x00007fd40a6da62a in ?? () from /usr/lib64/libkdeinit4_plasma-desktop.so
#30 0x00007fd41e8ba39e in QObject::event(QEvent*) () from /usr/lib64/qt/lib/libQtCore.so.4
#31 0x00007fd41da23064 in QApplication::event(QEvent*) () from /usr/lib64/qt/lib/libQtGui.so.4
#32 0x00007fd41da20f5c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt/lib/libQtGui.so.4
#33 0x00007fd41da253da in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt/lib/libQtGui.so.4
#34 0x00007fd41f8d4136 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#35 0x00007fd41e8a5abe in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt/lib/libQtCore.so.4
#36 0x00007fd41e8a9421 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/qt/lib/libQtCore.so.4
#37 0x00007fd41e8d3a83 in ?? () from /usr/lib64/qt/lib/libQtCore.so.4
#38 0x00007fd419060c35 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#39 0x00007fd419060f68 in ?? () from /usr/lib64/libglib-2.0.so.0
#40 0x00007fd419061024 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#41 0x00007fd41e8d3c16 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt/lib/libQtCore.so.4
#42 0x00007fd41dac106e in ?? () from /usr/lib64/qt/lib/libQtGui.so.4
#43 0x00007fd41e8a480f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt/lib/libQtCore.so.4
#44 0x00007fd41e8a4a98 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt/lib/libQtCore.so.4
#45 0x00007fd41e8a9738 in QCoreApplication::exec() () from /usr/lib64/qt/lib/libQtCore.so.4
#46 0x00007fd40a6c14a5 in kdemain () from /usr/lib64/libkdeinit4_plasma-desktop.so
#47 0x000000000040891e in _start ()

Reported using DrKonqi