Application: systemsettings (1.0)
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:
As I shows in the report I was opening the login screen option in the system settings, It only crashed after I had installed two themes that refused to show up. I believe this is the cause of it crashing

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f8970a3d760 (LWP 10159))]

Thread 2 (Thread 0x7f8955a42710 (LWP 10160)):
#0  0x00007f896dc53665 in __pthread_mutex_lock (mutex=0x238f488) at pthread_mutex_lock.c:61
#1  0x00007f896b135a43 in g_main_context_prepare () from /lib/libglib-2.0.so.0
#2  0x00007f896b135e78 in ?? () from /lib/libglib-2.0.so.0
#3  0x00007f896b13645c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#4  0x00007f896e6851e6 in QEventDispatcherGlib::processEvents (this=0x2365170, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#5  0x00007f896e657a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#6  0x00007f896e657dec in QEventLoop::exec (this=0x7f8955a41db0, flags=) at kernel/qeventloop.cpp:201
#7  0x00007f896e5622fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#8  0x00007f896e6375f8 in QInotifyFileSystemWatcherEngine::run (this=0x238e230) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f896e56527e in QThreadPrivate::start (arg=0x238e230) at thread/qthread_unix.cpp:266
#10 0x00007f896dc51971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#11 0x00007f896df4d91d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f8970a3d760 (LWP 10159)):
[KCrash Handler]
#6  0x00007f8970091a7c in KCModule::setNeedsAuthorization (this=0x24a9ba0, needsAuth=<value optimized out>) at ../../kdeui/widgets/kcmodule.cpp:141
#7  0x00007f895502beb7 in KDModule::KDModule (this=0x24a9ba0, parent=<value optimized out>) at ../../../kcontrol/kdm/main.cpp:275
#8  0x00007f895502f455 in QObject* KPluginFactory::createInstance<KDModule, QWidget>(QWidget*, QObject*, QList<QVariant> const&) () from /usr/lib/kde4/kcm_kdm.so
#9  0x00007f896ee2a97f in KPluginFactory::create (this=0x249e990, iface=0x7f8970167640 "KCModule", parentWidget=<value optimized out>, parent=0x24719b0, args=..., keyword=<value optimized out>) at ../../kdecore/util/kpluginfactory.cpp:191
#10 0x00007f897062c71b in create<KCModule> (mod=..., report=<value optimized out>, parent=<value optimized out>, args=<value optimized out>) at ../../kdecore/util/kpluginfactory.h:515
#11 createInstance<KCModule> (mod=..., report=<value optimized out>, parent=<value optimized out>, args=<value optimized out>) at ../../kdecore/services/kservice.h:532
#12 createInstance<KCModule> (mod=..., report=<value optimized out>, parent=<value optimized out>, args=<value optimized out>) at ../../kdecore/services/kservice.h:509
#13 createInstance<KCModule> (mod=..., report=<value optimized out>, parent=<value optimized out>, args=<value optimized out>) at ../../kdecore/services/kservice.h:552
#14 KCModuleLoader::loadModule (mod=..., report=<value optimized out>, parent=<value optimized out>, args=<value optimized out>) at ../../kutils/kcmoduleloader.cpp:89
#15 0x00007f8970631699 in KCModuleProxyPrivate::loadModule (this=0x248e9d0) at ../../kutils/kcmoduleproxy.cpp:106
#16 0x00007f89706321c5 in KCModuleProxy::realModule (this=<value optimized out>) at ../../kutils/kcmoduleproxy.cpp:83
#17 0x00007f897040a2bc in ModuleView::stateChanged (this=0x21ebad0) at ../../../systemsettings/core/ModuleView.cpp:374
#18 0x00007f897040c008 in ModuleView::qt_metacall (this=0x21ebad0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff521bdc50) at ./ModuleView.moc:99
#19 0x00007f896e670b27 in QMetaObject::activate (sender=0x21ebe70, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#20 0x00007f897001bda8 in KPageWidget::currentPageChanged (this=0x7f896e1e5e40, _t1=0x21ebf40, _t2=0x0) at ./kpagewidget.moc:96
#21 0x00007f897001bf48 in KPageWidget::qt_metacall (this=0x21ebe70, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff521bdd90) at ./kpagewidget.moc:84
#22 0x00007f896e670b27 in QMetaObject::activate (sender=0x21ebe70, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#23 0x00007f8970016cf7 in KPageView::currentPageChanged (this=0x7f896e1e5e40, _t1=<value optimized out>, _t2=<value optimized out>) at ./kpageview.moc:140
#24 0x00007f89700184a5 in KPageViewPrivate::_k_pageSelected (this=0x2191e80, index=<value optimized out>, previous=...) at ../../kdeui/paged/kpageview.cpp:244
#25 0x00007f89700186f2 in KPageView::qt_metacall (this=0x21ebe70, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff521bdff0) at ./kpageview.moc:100
#26 0x00007f897001bf00 in KPageWidget::qt_metacall (this=0x7f896e1e5e40, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x0) at ./kpagewidget.moc:76
#27 0x00007f896e670b27 in QMetaObject::activate (sender=0x2490310, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#28 0x00007f896f830647 in QItemSelectionModel::selectionChanged (this=0x7f896e1e5e40, _t1=<value optimized out>, _t2=<value optimized out>) at .moc/release-shared/moc_qitemselectionmodel.cpp:152
#29 0x00007f896f833815 in QItemSelectionModel::emitSelectionChanged (this=<value optimized out>, newSelection=..., oldSelection=...) at itemviews/qitemselectionmodel.cpp:1525
#30 0x00007f896f83509b in QItemSelectionModel::select (this=0x2490310, selection=<value optimized out>, command=<value optimized out>) at itemviews/qitemselectionmodel.cpp:1088
#31 0x00007f896f831f01 in QItemSelectionModel::select (this=0x2490310, index=<value optimized out>, command=) at itemviews/qitemselectionmodel.cpp:976
#32 0x00007f896f83089f in QItemSelectionModel::setCurrentIndex (this=0x2490310, index=..., command=<value optimized out>) at itemviews/qitemselectionmodel.cpp:1155
#33 0x00007f8970017b20 in KPageViewPrivate::_k_rebuildGui (this=0x2191e80) at ../../kdeui/paged/kpageview.cpp:70
#34 0x00007f8970018215 in KPageViewPrivate::_k_modelChanged (this=0x7f896e1e5e40) at ../../kdeui/paged/kpageview.cpp:190
#35 0x00007f8970018702 in KPageView::qt_metacall (this=0x21ebe70, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff521be560) at ./kpageview.moc:99
#36 0x00007f897001bf00 in KPageWidget::qt_metacall (this=0x7f896e1e5e40, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x0) at ./kpagewidget.moc:76
#37 0x00007f896e670b27 in QMetaObject::activate (sender=0x2201060, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#38 0x00007f897040aa95 in ModuleView::addModule (this=0x21ebad0, module=0x220aa98) at ../../../systemsettings/core/ModuleView.cpp:220
#39 0x00007f897040ae26 in ModuleView::loadModule (this=0x21ebad0, menuItem=<value optimized out>) at ../../../systemsettings/core/ModuleView.cpp:174
#40 0x00007f8957f5e190 in IconMode::changeModule (this=0x21ebd20, activeModule=...) at ../../../systemsettings/icons/IconMode.cpp:133
#41 0x00007f8957f5e261 in IconMode::qt_metacall (this=0x21ebd20, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff521beb80) at ./IconMode.moc:80
#42 0x00007f896e670b27 in QMetaObject::activate (sender=0x21b8e60, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#43 0x00007f896f7d4705 in QAbstractItemView::activated (this=0x7f896e1e5e40, _t1=<value optimized out>) at .moc/release-shared/moc_qabstractitemview.cpp:345
#44 0x00007f896f7e3efa in QAbstractItemView::mouseReleaseEvent (this=0x21b8e60, event=<value optimized out>) at itemviews/qabstractitemview.cpp:1796
#45 0x00007f896f7f822e in QListView::mouseReleaseEvent (this=0x7f896e1e5e40, e=0x0) at itemviews/qlistview.cpp:796
#46 0x00007f896ffb4e02 in KCategorizedView::mouseReleaseEvent (this=0x21b8e60, event=<value optimized out>) at ../../kdeui/itemviews/kcategorizedview.cpp:1031
#47 0x00007f896f2e004e in QWidget::event (this=0x21b8e60, event=0x7fff521bfb70) at kernel/qwidget.cpp:8187
#48 0x00007f896f6ab5e6 in QFrame::event (this=0x21b8e60, e=0x7fff521bfb70) at widgets/qframe.cpp:557
#49 0x00007f896f7e4a8b in QAbstractItemView::viewportEvent (this=0x21b8e60, event=0x7fff521bfb70) at itemviews/qabstractitemview.cpp:1619
#50 0x00007f896e658507 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x21db4f0, event=0x7fff521bfb70) at kernel/qcoreapplication.cpp:847
#51 0x00007f896f289fac in QApplicationPrivate::notify_helper (this=0x1eee060, receiver=0x21db4f0, e=0x7fff521bfb70) at kernel/qapplication.cpp:4392
#52 0x00007f896f29030e in QApplication::notify (this=0x7fff521c0870, receiver=0x21db4f0, e=0x7fff521bfb70) at kernel/qapplication.cpp:3959
#53 0x00007f896ffdc156 in KApplication::notify (this=0x7fff521c0870, receiver=0x21db4f0, event=0x7fff521bfb70) at ../../kdeui/kernel/kapplication.cpp:310
#54 0x00007f896e658cdc in QCoreApplication::notifyInternal (this=0x7fff521c0870, receiver=0x21db4f0, event=0x7fff521bfb70) at kernel/qcoreapplication.cpp:732
#55 0x00007f896f28edbe in sendEvent (receiver=0x21db4f0, event=0x7fff521bfb70, alienWidget=0x21db4f0, nativeWidget=0x1fd0510, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#56 QApplicationPrivate::sendMouseEvent (receiver=0x21db4f0, event=0x7fff521bfb70, alienWidget=0x21db4f0, nativeWidget=0x1fd0510, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:3058
#57 0x00007f896f312345 in QETWidget::translateMouseEvent (this=0x1fd0510, event=<value optimized out>) at kernel/qapplication_x11.cpp:4403
#58 0x00007f896f310c5c in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff521c0490) at kernel/qapplication_x11.cpp:3536
#59 0x00007f896f33d0e2 in x11EventSourceDispatch (s=0x1ef1960, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#60 0x00007f896b132342 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#61 0x00007f896b1362a8 in ?? () from /lib/libglib-2.0.so.0
#62 0x00007f896b13645c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#63 0x00007f896e685193 in QEventDispatcherGlib::processEvents (this=0x1ec51f0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#64 0x00007f896f33ca4e in QGuiEventDispatcherGlib::processEvents (this=0x7f896e1e5e40, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#65 0x00007f896e657a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#66 0x00007f896e657dec in QEventLoop::exec (this=0x7fff521c07c0, flags=) at kernel/qeventloop.cpp:201
#67 0x00007f896e65bebb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#68 0x00000000004118a9 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../systemsettings/app/main.cpp:49

Possible duplicates by query: bug 255616, bug 254385, bug 254026, bug 253949, bug 249039.

Reported using DrKonqi