Version:            (using KDE 4.3.4)
OS:                Linux
Installed from:    Ubuntu Packages

Application that crashed: Plasma Workspace
Version of the application: 4.3.4
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: ?
Operating System: Linux 2.6.31-17-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Booted my laptop and logged in. A crash dialog soon started thereafter. After that, the window management (e.g. selection of current window) didn't work and several items were missing on the desktop (can't remember exactly which ones).

I have the following Plasma Widgets on my desktop:
Folder View, Calculator, LCD Weather Station, Microblogging, System Monitor Temperature.

 -- Backtrace:
pplication: Plasma Workspace (kdeinit4), signal: Aborted
[KCrash Handler]
#6  0x0036b422 in __kernel_vsyscall ()
#7  0x006704d1 in raise () from /lib/tls/i686/cmov/libc.so.6
#8  0x00673932 in abort () from /lib/tls/i686/cmov/libc.so.6
#9  0x00155f8c in qt_message_output (msgType=QtFatalMsg,
    buf=0x8d1bcb8 "Fatal Error: Accessed global static 'DataEngineManagerSingleton *privateDataEngineManagerSelf()' after destruction. Defined at ../../plasma/dataenginemanager.cpp:79")
    at global/qglobal.cpp:2042
#10 0x0015606e in qFatal (msg=0x2823708 "Fatal Error: Accessed global static '%s *%s()' after destruction. Defined at %s:%d") at global/qglobal.cpp:2241
#11 0x02716f54 in operator-> () at ../../plasma/dataenginemanager.cpp:79
#12 Plasma::DataEngineManager::self () at ../../plasma/dataenginemanager.cpp:83
#13 0x076d2b55 in ?? () from /usr/lib/kde4/plasma_engine_weather.so
#14 0x076d2d46 in ?? () from /usr/lib/kde4/plasma_engine_weather.so
#15 0x02716b74 in ~DataEngineManagerPrivate (this=0x89b2238, __in_chrg=<value optimized out>) at ../../plasma/dataenginemanager.cpp:54
#16 ~DataEngineManager (this=0x89b2238, __in_chrg=<value optimized out>) at ../../plasma/dataenginemanager.cpp:93
#17 0x02716d0a in ~DataEngineManagerSingleton () at ../../plasma/dataenginemanager.cpp:74
#18 destroy () at ../../plasma/dataenginemanager.cpp:79
#19 0x026d759b in ~KCleanUpGlobalStatic (this=0x28547fc, __in_chrg=<value optimized out>) at ../../kdecore/kernel/kglobal.h:62
#20 0x0067505f in ?? () from /lib/tls/i686/cmov/libc.so.6
#21 0x006750cf in exit () from /lib/tls/i686/cmov/libc.so.6
#22 0x007a2fc9 in ?? () from /usr/lib/libICE.so.6
#23 0x007ab483 in _IceRead () from /usr/lib/libICE.so.6
#24 0x007afabf in IceProcessMessages () from /usr/lib/libICE.so.6
#25 0x02c68a78 in QSmSocketReceiver::socketActivated (this=0x8359168) at kernel/qapplication_x11.cpp:5683
#26 0x02c68add in QSmSocketReceiver::qt_metacall (this=0x8359168, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbfa39b48) at .moc/release-shared/qapplication_x11.moc:65
#27 0x00265263 in QMetaObject::activate (sender=0x837bda0, from_signal_index=4, to_signal_index=4, argv=0xbfa39b48) at kernel/qobject.cpp:3113
#28 0x00265ec2 in QMetaObject::activate (sender=0x837bda0, m=0x3408b0, local_signal_index=0, argv=0xbfa39b48) at kernel/qobject.cpp:3187
#29 0x0029f503 in QSocketNotifier::activated (this=0x837bda0, _t1=10) at .moc/release-shared/moc_qsocketnotifier.cpp:83
#30 0x00269c87 in QSocketNotifier::event (this=0x837bda0, e=0xbfa39f04) at kernel/qsocketnotifier.cpp:316
#31 0x02c06f54 in QApplicationPrivate::notify_helper (this=0x83534a8, receiver=0x837bda0, e=0xbfa39f04) at kernel/qapplication.cpp:4056
#32 0x02c0e67c in QApplication::notify (this=0x832c5b8, receiver=0x837bda0, e=0xbfa39f04) at kernel/qapplication.cpp:3603
#33 0x00fa01aa in KApplication::notify (this=0x832c5b8, receiver=0x837bda0, event=0xbfa39f04) at ../../kdeui/kernel/kapplication.cpp:302
#34 0x0024f6cb in QCoreApplication::notifyInternal (this=0x832c5b8, receiver=0x837bda0, event=0xbfa39f04) at kernel/qcoreapplication.cpp:610
#35 0x0027a2ca in QCoreApplication::sendEvent (source=0x8356000) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#36 socketNotifierSourceDispatch (source=0x8356000) at kernel/qeventdispatcher_glib.cpp:110
#37 0x05796e88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#38 0x0579a730 in ?? () from /lib/libglib-2.0.so.0
#39 0x0579a863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#40 0x0027a02c in QEventDispatcherGlib::processEvents (this=0x8353298, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#41 0x02ca7be5 in QGuiEventDispatcherGlib::processEvents (this=0x8353298, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#42 0x0024dc79 in QEventLoop::processEvents (this=0xbfa3a1a4, flags=) at kernel/qeventloop.cpp:149
#43 0x0024e0ca in QEventLoop::exec (this=0xbfa3a1a4, flags=...) at kernel/qeventloop.cpp:201
#44 0x0025053f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#45 0x02c06dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#46 0x013e880d in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#47 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x8315850 "", reset_env=false, tty=0x0, avoid_loops=false,
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#48 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#49 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#50 0x0804fbaf in main (argc=2, argv=0xbfa3aa04, envp=0xbfa3aa10) at ../../kinit/kinit.cpp:1793