Bug 271991

Application: systemsettings (1.0)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic i686
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:

i opened system setting to change the login screen options but it just crashes everytime i try to open it

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7844710 (LWP 1627))]

Thread 3 (Thread 0xb46e1b70 (LWP 1628)):
#0  0x017a07a4 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x00632656 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0x090efdd6 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x090f0524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x05eb9577 in QEventDispatcherGlib::processEvents (this=0x96b6fa0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x05e8b289 in QEventLoop::processEvents (this=0xb46e1290, flags=...) at kernel/qeventloop.cpp:149
#6  0x05e8b522 in QEventLoop::exec (this=0xb46e1290, flags=...) at kernel/qeventloop.cpp:201
#7  0x05d952a0 in QThread::exec (this=0x979a318) at thread/qthread.cpp:492
#8  0x05e6cfdb in QInotifyFileSystemWatcherEngine::run (this=0x979a318) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x05d97da2 in QThreadPrivate::start (arg=0x979a318) at thread/qthread_unix.cpp:320
#10 0x0179ce99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#11 0x0062473e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xb2b68b70 (LWP 1629)):
#0  0x0056ac6f in ?? () from /lib/i386-linux-gnu/libc.so.6
#1  0x090ee8eb in g_main_context_release () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x090f004f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x090f092b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x02f38304 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#5  0x091192df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0x0179ce99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#7  0x0062473e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb7844710 (LWP 1627)):
[KCrash Handler]
#7  operator char const* (this=0x0) at /usr/include/qt4/QtCore/qbytearray.h:407
#8  KAboutData::appName (this=0x0) at ../../kdecore/kernel/kaboutdata.cpp:680
#9  0x00ae23dc in KCModule::setNeedsAuthorization (this=0x9880960, needsAuth=true) at ../../kdeui/widgets/kcmodule.cpp:152
#10 0x0647a5d0 in KDModule::KDModule (this=0x9880960, parent=0x967ff98) at ../../../kdm/kcm/main.cpp:275
#11 0x0647c46e in KPluginFactory::createInstance<KDModule, QWidget> (parentWidget=0x0, parent=0x967ff98, args=...) at /usr/include/kpluginfactory.h:473
#12 0x00320104 in KPluginFactory::create (this=0x9864558, iface=0xbc6d20 "KCModule", parentWidget=0x0, parent=0x967ff98, args=..., keyword=...) at ../../kdecore/util/kpluginfactory.cpp:203
#13 0x0082bfb6 in create<KCModule> (mod=..., report=KCModuleLoader::Inline, parent=0x967ff98, args=...) at ../../kdecore/util/kpluginfactory.h:527
#14 createInstance<KCModule> (mod=..., report=KCModuleLoader::Inline, parent=0x967ff98, args=...) at ../../kdecore/services/kservice.h:551
#15 createInstance<KCModule> (mod=..., report=KCModuleLoader::Inline, parent=0x967ff98, args=...) at ../../kdecore/services/kservice.h:528
#16 KCModuleLoader::loadModule (mod=..., report=KCModuleLoader::Inline, parent=0x967ff98, args=...) at ../../kutils/kcmoduleloader.cpp:89
#17 0x00831658 in KCModuleProxyPrivate::loadModule (this=0x9864318) at ../../kutils/kcmoduleproxy.cpp:106
#18 0x00832363 in KCModuleProxy::realModule (this=0x967ff98) at ../../kutils/kcmoduleproxy.cpp:83
#19 0x00cf61b6 in ModuleView::stateChanged (this=0x9677570) at ../../../systemsettings/core/ModuleView.cpp:379
#20 0x00cf62e7 in ModuleView::activeModuleChanged (this=0x9677570, current=0x96a3a38, previous=0x0) at ../../../systemsettings/core/ModuleView.cpp:366
#21 0x00cf7b40 in ModuleView::qt_metacall (this=0x9677570, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbfde54c4) at ./ModuleView.moc:99
#22 0x05e926ba in QMetaObject::metacall (object=0x9677570, cl=QMetaObject::InvokeMetaMethod, idx=35, argv=0xbfde54c4) at kernel/qmetaobject.cpp:237
#23 0x05ea24ff in QMetaObject::activate (sender=0x9677590, m=0xbe7750, local_signal_index=0, argv=0xbfde54c4) at kernel/qobject.cpp:3287
#24 0x00a694e9 in KPageWidget::currentPageChanged (this=0x9677590, _t1=0x96a3a38, _t2=0x0) at ./kpagewidget.moc:96
#25 0x00a69577 in KPageWidgetPrivate::_k_slotCurrentPageChanged (this=0x9678208, current=..., before=...) at ../../kdeui/paged/kpagewidget.cpp:43
#26 0x00a696b6 in KPageWidget::qt_metacall (this=0x9677590, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0xbfde5624) at ./kpagewidget.moc:84
#27 0x05e926ba in QMetaObject::metacall (object=0x9677590, cl=QMetaObject::InvokeMetaMethod, idx=35, argv=0xbfde5624) at kernel/qmetaobject.cpp:237
#28 0x05ea24ff in QMetaObject::activate (sender=0x9677590, m=0xbe6c2c, local_signal_index=0, argv=0xbfde5624) at kernel/qobject.cpp:3287
#29 0x00a651a9 in KPageView::currentPageChanged (this=0x9677590, _t1=..., _t2=...) at ./kpageview.moc:140
#30 0x00a65731 in KPageViewPrivate::_k_pageSelected (this=0x9678208, index=..., previous=...) at ../../kdeui/paged/kpageview.cpp:244
#31 0x00a6592f in KPageView::qt_metacall (this=0x9677590, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbfde57f4) at ./kpageview.moc:100
#32 0x00a6967a in KPageWidget::qt_metacall (this=0x9677590, _c=QMetaObject::InvokeMetaMethod, _id=30, _a=0xbfde57f4) at ./kpagewidget.moc:76
#33 0x05e926ba in QMetaObject::metacall (object=0x9677590, cl=QMetaObject::InvokeMetaMethod, idx=30, argv=0xbfde57f4) at kernel/qmetaobject.cpp:237
#34 0x05ea24ff in QMetaObject::activate (sender=0x986bd90, m=0x1768e50, local_signal_index=0, argv=0xbfde57f4) at kernel/qobject.cpp:3287
#35 0x013fb279 in QItemSelectionModel::selectionChanged (this=0x986bd90, _t1=..., _t2=...) at .moc/release-shared/moc_qitemselectionmodel.cpp:152
#36 0x014018d9 in QItemSelectionModel::emitSelectionChanged (this=0x986bd90, newSelection=..., oldSelection=...) at itemviews/qitemselectionmodel.cpp:1538
#37 0x01401c7b in QItemSelectionModel::select (this=0x986bd90, selection=..., command=...) at itemviews/qitemselectionmodel.cpp:1101
#38 0x013fcfa0 in QItemSelectionModel::select (this=0x986bd90, index=..., command=...) at itemviews/qitemselectionmodel.cpp:976
#39 0x013fb52c in QItemSelectionModel::setCurrentIndex (this=0x986bd90, index=..., command=...) at itemviews/qitemselectionmodel.cpp:1168
#40 0x00a64279 in KPageViewPrivate::_k_rebuildGui (this=0x9678208) at ../../kdeui/paged/kpageview.cpp:70
#41 0x00a65470 in KPageViewPrivate::_k_modelChanged (this=0x9678208) at ../../kdeui/paged/kpageview.cpp:190
#42 0x00a65946 in KPageView::qt_metacall (this=0x9677590, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0xbfde5bdc) at ./kpageview.moc:99
#43 0x00a6967a in KPageWidget::qt_metacall (this=0x9677590, _c=QMetaObject::InvokeMetaMethod, _id=29, _a=0xbfde5bdc) at ./kpagewidget.moc:76
#44 0x05e926ba in QMetaObject::metacall (object=0x9677590, cl=QMetaObject::InvokeMetaMethod, idx=29, argv=0xbfde5bdc) at kernel/qmetaobject.cpp:237
#45 0x05ea24ff in QMetaObject::activate (sender=0x967b1b8, m=0x5fc7198, local_signal_index=2, argv=0x0) at kernel/qobject.cpp:3287
#46 0x05eee127 in QAbstractItemModel::layoutChanged (this=0x967b1b8) at .moc/release-shared/moc_qabstractitemmodel.cpp:161
#47 0x00a6aa84 in KPageWidgetModel::addPage (this=0x967b1b8, item=0x96a3a38) at ../../kdeui/paged/kpagewidgetmodel.cpp:401
#48 0x00a692ba in KPageWidget::addPage (this=0x9677590, item=0x96a3a38) at ../../kdeui/paged/kpagewidget.cpp:87
#49 0x00cf6991 in ModuleView::addModule (this=0x9677570, module=0x965556c) at ../../../systemsettings/core/ModuleView.cpp:220
#50 0x00cf7063 in ModuleView::loadModule (this=0x9677570, menuItem=...) at ../../../systemsettings/core/ModuleView.cpp:174
#51 0x025e994a in IconMode::changeModule (this=0x9675b10, activeModule=...) at ../../../systemsettings/icons/IconMode.cpp:133
#52 0x025e9d8d in IconMode::qt_metacall (this=0x9675b10, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0xbfde6018) at ./IconMode.moc:80
#53 0x05e926ba in QMetaObject::metacall (object=0x9675b10, cl=QMetaObject::InvokeMetaMethod, idx=12, argv=0xbfde6018) at kernel/qmetaobject.cpp:237
#54 0x05ea24ff in QMetaObject::activate (sender=0x96866a8, m=0x1768164, local_signal_index=3, argv=0xbfde6018) at kernel/qobject.cpp:3287
#55 0x013a53a3 in QAbstractItemView::activated (this=0x96866a8, _t1=...) at .moc/release-shared/moc_qabstractitemview.cpp:345
#56 0x013a58ca in QAbstractItemView::mouseReleaseEvent (this=0x96866a8, event=0xbfde6b04) at itemviews/qabstractitemview.cpp:1805
#57 0x013c177f in QListView::mouseReleaseEvent (this=0x96866a8, e=0xbfde6b04) at itemviews/qlistview.cpp:796
#58 0x00a01b79 in KCategorizedView::mouseReleaseEvent (this=0x96866a8, event=0xbfde6b04) at ../../kdeui/itemviews/kcategorizedview.cpp:1034
#59 0x00e8313a in QWidget::event (this=0x96866a8, event=0xbfde6b04) at kernel/qwidget.cpp:8259
#60 0x01274f63 in QFrame::event (this=0x96866a8, e=0xbfde6b04) at widgets/qframe.cpp:557
#61 0x013035d2 in QAbstractScrollArea::viewportEvent (this=0x96866a8, e=0xbfde6b04) at widgets/qabstractscrollarea.cpp:1043
#62 0x013a2797 in QAbstractItemView::viewportEvent (this=0x96866a8, event=0xbfde6b04) at itemviews/qabstractitemview.cpp:1628
#63 0x01305ed5 in viewportEvent (this=0x9687a58, o=0x9415fa0, e=0xbfde6b04) at widgets/qabstractscrollarea_p.h:100
#64 QAbstractScrollAreaFilter::eventFilter (this=0x9687a58, o=0x9415fa0, e=0xbfde6b04) at widgets/qabstractscrollarea_p.h:116
#65 0x05e8c25a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x941f500, receiver=0x9415fa0, event=0xbfde6b04) at kernel/qcoreapplication.cpp:846
#66 0x00e2ad00 in QApplicationPrivate::notify_helper (this=0x941f500, receiver=0x9415fa0, e=0xbfde6b04) at kernel/qapplication.cpp:4458
#67 0x00e30201 in QApplication::notify (this=0xbfde739c, receiver=0x9415fa0, e=0xbfde6b04) at kernel/qapplication.cpp:4023
#68 0x00a2f3ca in KApplication::notify (this=0xbfde739c, receiver=0x9415fa0, event=0xbfde6b04) at ../../kdeui/kernel/kapplication.cpp:311
#69 0x05e8c0bb in QCoreApplication::notifyInternal (this=0xbfde739c, receiver=0x9415fa0, event=0xbfde6b04) at kernel/qcoreapplication.cpp:731
#70 0x00e2bc3b in sendSpontaneousEvent (receiver=0x9415fa0, event=0xbfde6b04, alienWidget=0x9415fa0, nativeWidget=0x9486b80, buttonDown=0x1777c60, lastMouseReceiver=..., spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#71 QApplicationPrivate::sendMouseEvent (receiver=0x9415fa0, event=0xbfde6b04, alienWidget=0x9415fa0, nativeWidget=0x9486b80, buttonDown=0x1777c60, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3120
#72 0x00eb52bc in QETWidget::translateMouseEvent (this=0x9486b80, event=0xbfde702c) at kernel/qapplication_x11.cpp:4556
#73 0x00eb3746 in QApplication::x11ProcessEvent (this=0xbfde739c, event=0xbfde702c) at kernel/qapplication_x11.cpp:3678
#74 0x00edeb84 in x11EventSourceDispatch (s=0x94225a8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#75 0x090efaa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#76 0x090f0270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#77 0x090f0524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#78 0x05eb953c in QEventDispatcherGlib::processEvents (this=0x93e5440, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#79 0x00ede775 in QGuiEventDispatcherGlib::processEvents (this=0x93e5440, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#80 0x05e8b289 in QEventLoop::processEvents (this=0xbfde72f4, flags=...) at kernel/qeventloop.cpp:149
#81 0x05e8b522 in QEventLoop::exec (this=0xbfde72f4, flags=...) at kernel/qeventloop.cpp:201
#82 0x05e8fecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#83 0x00e288e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#84 0x080570de in main (argc=0, argv=0x0) at ../../../systemsettings/app/main.cpp:49

Possible duplicates by query: bug 269384, bug 269203.

Reported using DrKonqi