Application: plasma-desktop (0.3)
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-22-generic x86_64
Distribution: Ubuntu 10.10

-- Information about the crash:
I clicked an icon in the tray, the KPackageKit icon.  The icon disappeared and a "KPackageKit" appeared below it.  I clicked that.  Then poof and Plasma was gone.  KDE 4.5... and the primary GUI is still crashing from clicking icons.  :(

-- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f2a923ef780 (LWP 15294))]

Thread 2 (Thread 0x7f2a70c73710 (LWP 15298)):
#0  0x00007f2a8f007665 in __pthread_mutex_lock (mutex=0x251c3e8) at pthread_mutex_lock.c:61
#1  0x00007f2a86978697 in g_main_context_check () from /lib/libglib-2.0.so.0
#2  0x00007f2a86979023 in ?? () from /lib/libglib-2.0.so.0
#3  0x00007f2a8697945c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#4  0x00007f2a8f3b01e6 in QEventDispatcherGlib::processEvents (this=0x251bba0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#5  0x00007f2a8f382a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#6  0x00007f2a8f382dec in QEventLoop::exec (this=0x7f2a70c72d90, flags=) at kernel/qeventloop.cpp:201
#7  0x00007f2a8f28d2fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#8  0x00007f2a8f3625f8 in QInotifyFileSystemWatcherEngine::run (this=0x2445800) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f2a8f29027e in QThreadPrivate::start (arg=0x2445800) at thread/qthread_unix.cpp:266
#10 0x00007f2a8f005971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#11 0x00007f2a91d0791d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f2a923ef780 (LWP 15294)):
[KCrash Handler]
#6  QMutex::lock (this=0x7f2a00000041) at thread/qmutex.cpp:151
#7  0x00007f2a8f386642 in QCoreApplication::postEvent (receiver=0x29316f0, event=0x226f190, priority=0) at kernel/qcoreapplication.cpp:1141
#8  0x00007f2a742c4c73 in StatusNotifierItemJob::contextMenuReady (this=0x29316f0, menu=0x2a4a400) at ../../../../../plasma/generic/dataengines/statusnotifieritem/statusnotifieritemjob.cpp:53
#9  0x00007f2a742c4ce0 in StatusNotifierItemJob::qt_metacall (this=0x29316f0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff4a9b4d40) at ./statusnotifieritemjob.moc:75
#10 0x00007f2a8f39bb27 in QMetaObject::activate (sender=0x2d0d040, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x226f180) at kernel/qobject.cpp:3280
#11 0x00007f2a742bec7f in StatusNotifierItemSource::contextMenuReady (this=0x7f2a00000041, _t1=0x2a4a400) at ./statusnotifieritemsource.moc:109
#12 0x00007f2a742c3be4 in StatusNotifierItemSource::qt_metacall (this=0x2d0d040, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff4a9b4e30) at ./statusnotifieritemsource.moc:90
#13 0x00007f2a8f39bb27 in QMetaObject::activate (sender=0x2a4cdf0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x226f180) at kernel/qobject.cpp:3280
#14 0x00007f2a87c9e89c in DBusMenuImporter::slotMenuAboutToShow() () from /usr/lib/libdbusmenu-qt.so.2
#15 0x00007f2a87c9fa5c in DBusMenuImporter::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libdbusmenu-qt.so.2
#16 0x00007f2a8f39bb27 in QMetaObject::activate (sender=0x2a4a400, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x226f180) at kernel/qobject.cpp:3280
#17 0x00007f2a8e933f40 in QMenu::qt_metacall (this=0x2a4a400, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff4a9b52b0) at .moc/release-shared/moc_qmenu.cpp:97
#18 0x00007f2a8f38cbf9 in QMetaMethod::invoke (this=0x7fff4a9b5560, object=0x2a4a400, connectionType=<value optimized out>, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1575
#19 0x00007f2a8f38e306 in QMetaObject::invokeMethod (obj=0x2a4a400, member=<value optimized out>, type=<value optimized out>, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1148
#20 0x00007f2a87c997c1 in DBusMenuImporter::updateMenu() () from /usr/lib/libdbusmenu-qt.so.2
#21 0x00007f2a742c01bb in StatusNotifierItemSource::contextMenu (this=0x2d0d040, x=1069, y=16) at ../../../../../plasma/generic/dataengines/statusnotifieritem/statusnotifieritemsource.cpp:474
#22 0x00007f2a742c62d8 in StatusNotifierItemJob::start (this=0x29316f0) at ../../../../../plasma/generic/dataengines/statusnotifieritem/statusnotifieritemjob.cpp:43
#23 0x00007f2a918d4b21 in Plasma::ServiceJob::qt_metacall (this=0x29316f0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>) at ./servicejob.moc:72
#24 0x00007f2a742c4cc0 in StatusNotifierItemJob::qt_metacall (this=0x7f2a00000041, _c=36106640, _id=0, _a=0x226f180) at ./statusnotifieritemjob.moc:70
#25 0x00007f2a8f395bde in QObject::event (this=0x29316f0, e=0x7f2a00000041) at kernel/qobject.cpp:1219
#26 0x00007f2a8e4cdfdc in QApplicationPrivate::notify_helper (this=0x220ab10, receiver=0x29316f0, e=0x2d04550) at kernel/qapplication.cpp:4396
#27 0x00007f2a8e4d3aed in QApplication::notify (this=0x21f9610, receiver=0x29316f0, e=0x2d04550) at kernel/qapplication.cpp:4277
#28 0x00007f2a9001f156 in KApplication::notify (this=0x21f9610, receiver=0x29316f0, event=0x2d04550) at ../../kdeui/kernel/kapplication.cpp:310
#29 0x00007f2a8f383cdc in QCoreApplication::notifyInternal (this=0x21f9610, receiver=0x29316f0, event=0x2d04550) at kernel/qcoreapplication.cpp:732
#30 0x00007f2a8f386c22 in sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x21de560) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x21de560) at kernel/qcoreapplication.cpp:1373
#32 0x00007f2a8f3b0653 in sendPostedEvents (s=0x220e1a0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#33 postEventSourceDispatch (s=0x220e1a0) at kernel/qeventdispatcher_glib.cpp:277
#34 0x00007f2a86975342 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#35 0x00007f2a869792a8 in ?? () from /lib/libglib-2.0.so.0
#36 0x00007f2a8697945c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#37 0x00007f2a8f3b0193 in QEventDispatcherGlib::processEvents (this=0x21de070, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#38 0x00007f2a8e580a4e in QGuiEventDispatcherGlib::processEvents (this=0x7f2a00000041, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#39 0x00007f2a8f382a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#40 0x00007f2a8f382dec in QEventLoop::exec (this=0x7fff4a9b67f0, flags=) at kernel/qeventloop.cpp:201
#41 0x00007f2a8f386ebb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#42 0x00007f2a91fdea56 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/desktop/shell/main.cpp:118
#43 0x00007f2a91c3fd8e in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff4a9b6bb8) at libc-start.c:226
#44 0x0000000000400669 in _start ()

Reported using DrKonqi