Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.92 (KDE 4.4.92 (KDE 4.5 RC2))
Qt Version: 4.7.0
Operating System: Linux 2.6.32-24-generic x86_64
Distribution: Ubuntu 10.04.1 LTS

-- Information about the crash:
After logging out and back in, my two activities became six, so I was deleting the new ones I didn't create.  I also noticed that it messed up the fact that I have a dual screen setup and actually put one half of each of my activities in a whole new activity.  I decided to just remove all but one activity and start over, but it crashed when I went to remove the last "Desktop" activity, which would have left me with my custom named activity.

My setup is a dual screen configuration using the open source radeon driver.

-- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f316730f780 (LWP 1906))]

Thread 3 (Thread 0x7f3145ded710 (LWP 1910)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f3162737fde in ?? () from /usr/lib/libQtWebKit.so.4
#2  0x00007f31627380f9 in ?? () from /usr/lib/libQtWebKit.so.4
#3  0x00007f3163eed9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007f3166c226fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f313ff2d710 (LWP 1932)):
#0  0x00007f3163ef1a2d in __pthread_mutex_unlock_usercnt (mutex=0x2940e68) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x2940e68) at pthread_mutex_unlock.c:290
#2  0x00007f315b87ab01 in g_main_context_check () from /lib/libglib-2.0.so.0
#3  0x00007f315b87b4c3 in ?? () from /lib/libglib-2.0.so.0
#4  0x00007f315b87b8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#5  0x00007f316429dbd6 in QEventDispatcherGlib::processEvents (this=0x288b730, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#6  0x00007f31642707b2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#7  0x00007f3164270b9c in QEventLoop::exec (this=0x7f313ff2cd90, flags=) at kernel/qeventloop.cpp:201
#8  0x00007f316417c23d in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#9  0x00007f31642506d8 in QInotifyFileSystemWatcherEngine::run (this=0x2938c50) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f316417f1be in QThreadPrivate::start (arg=0x2938c50) at thread/qthread_unix.cpp:266
#11 0x00007f3163eed9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#12 0x00007f3166c226fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f316730f780 (LWP 1906)):
[KCrash Handler]
#6  0x00007f3163a10f34 in QGraphicsScene::addItem (this=0x19e4400, item=0x4337a10) at graphicsview/qgraphicsscene.cpp:2633
#7  0x00007f3166759cf8 in Plasma::CoronaPrivate::addContainment(QString const&, QList<QVariant> const&, unsigned int, bool) () from /usr/lib/libplasma.so.3
#8  0x00007f3166756a25 in Plasma::CoronaPrivate::importLayout (this=0x1a36480, conf=<value optimized out>, mergeConfig=<value optimized out>) at ../../plasma/corona.cpp:496
#9  0x00007f316675725f in Plasma::Corona::importLayout (this=0x19e4400, conf=...) at ../../plasma/corona.cpp:460
#10 0x00007f3166ee9105 in Activity::open (this=0x1d283f0) at ../../../../plasma/desktop/shell/activity.cpp:347
#11 0x00007f3166ee944d in Activity::ensureActive (this=0x1d283f0) at ../../../../plasma/desktop/shell/activity.cpp:177
#12 0x00007f3166ef25a8 in DesktopCorona::currentActivityChanged (this=0x19e4400, newActivity=...) at ../../../../plasma/desktop/shell/desktopcorona.cpp:609
#13 0x00007f3166ef59e5 in DesktopCorona::qt_metacall (this=0x19e4400, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffdcb07c80) at ./desktopcorona.moc:122
#14 0x00007f31642897a7 in QMetaObject::activate (sender=0x1bfc080, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#15 0x00007f3165d1cd02 in KActivityConsumer::currentActivityChanged (this=0x4337a10, _t1=<value optimized out>) at moc_kactivityconsumer.cpp:126
#16 0x00007f3165d1d0e5 in KActivityConsumer::qt_metacall (this=0x1bfc080, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fffdcb07e20) at moc_kactivityconsumer.cpp:87
#17 0x00007f3165d1d3b5 in KActivityController::qt_metacall (this=0x4337a10, _c=70482432, _id=58140384, _a=0x0) at moc_kactivitycontroller.cpp:77
#18 0x00007f31642897a7 in QMetaObject::activate (sender=0x1c832c0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#19 0x00007f3165d38c95 in OrgKdeActivityManagerInterface::CurrentActivityChanged (this=0x4337a10, _t1=<value optimized out>) at activitymanager_interface.moc:165
#20 0x00007f3165d38f7c in OrgKdeActivityManagerInterface::qt_metacall (this=0x1c832c0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffdcb08610)
    at activitymanager_interface.moc:112
#21 0x00007f31645c890e in QDBusConnectionPrivate::deliverCall (this=<value optimized out>, object=<value optimized out>, msg=<value optimized out>, metaTypes=..., slotIdx=<value optimized out>)
    at qdbusintegrator.cpp:909
#22 0x00007f31645d37ef in QDBusCallDeliveryEvent::placeMetaCall (this=0x0, object=0x4337a00) at qdbusintegrator_p.h:103
#23 0x00007f316428387e in QObject::event (this=0x1c832c0, e=0x4337a10) at kernel/qobject.cpp:1219
#24 0x00007f31633c5cdc in QApplicationPrivate::notify_helper (this=0x195ee10, receiver=0x1c832c0, e=0x2521290) at kernel/qapplication.cpp:4389
#25 0x00007f31633cb7cd in QApplication::notify (this=0x19483e0, receiver=0x1c832c0, e=0x2521290) at kernel/qapplication.cpp:4270
#26 0x00007f3164f26926 in KApplication::notify (this=0x19483e0, receiver=0x1c832c0, event=0x2521290) at ../../kdeui/kernel/kapplication.cpp:309
#27 0x00007f3164271a8c in QCoreApplication::notifyInternal (this=0x19483e0, receiver=0x1c832c0, event=0x2521290) at kernel/qcoreapplication.cpp:732
#28 0x00007f31642749b2 in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x192d090) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#29 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x192d090) at kernel/qcoreapplication.cpp:1373
#30 0x00007f316429e043 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#31 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276
#32 0x00007f315b8778c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#33 0x00007f315b87b748 in ?? () from /lib/libglib-2.0.so.0
#34 0x00007f315b87b8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#35 0x00007f316429db83 in QEventDispatcherGlib::processEvents (this=0x192c790, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#36 0x00007f31634777ee in QGuiEventDispatcherGlib::processEvents (this=0x4337a10, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007f31642707b2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#38 0x00007f3164270b9c in QEventLoop::exec (this=0x7fffdcb09050, flags=) at kernel/qeventloop.cpp:201
#39 0x00007f3164274c4b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#40 0x00007f3166efbc76 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/desktop/shell/main.cpp:118
#41 0x00007f3166b5ac4d 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=0x7fffdcb09418) at libc-start.c:226
#42 0x00000000004006c9 in _start ()

This bug may be a duplicate of or related to bug 241269.

Possible duplicates by query: bug 241269.

Reported using DrKonqi