Bug 254026

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:
- What I was doing when the application crashed:
Double clicked the "Login Screen" control's icon in the System Settings

- Unusual behavior I noticed:
System Settings window crashed

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f20f9f68760 (LWP 1978))]

Thread 2 (Thread 0x7f20e415b710 (LWP 1991)):
#0  0x00007f20f746a1e3 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f20f465f009 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f20f465f45c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007f20f7bae1e6 in QEventDispatcherGlib::processEvents (this=0x192fa90, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#4  0x00007f20f7b80a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f20f7b80dec in QEventLoop::exec (this=0x7f20e415adb0, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f20f7a8b2fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007f20f7b605f8 in QInotifyFileSystemWatcherEngine::run (this=0x196c070) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f20f7a8e27e in QThreadPrivate::start (arg=0x196c070) at thread/qthread_unix.cpp:266
#9  0x00007f20f717a971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#10 0x00007f20f747692d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f20f9f68760 (LWP 1978)):
[KCrash Handler]
#6  0x00007f20f95baa7c in KCModule::setNeedsAuthorization (this=0x1b52720, needsAuth=<value optimized out>) at ../../kdeui/widgets/kcmodule.cpp:141
#7  0x00007f20d28f0eb7 in KDModule::KDModule (this=0x1b52720, parent=<value optimized out>) at ../../../kcontrol/kdm/main.cpp:275
#8  0x00007f20d28f4455 in QObject* KPluginFactory::createInstance<KDModule, QWidget>(QWidget*, QObject*, QList<QVariant> const&) () from /usr/lib/kde4/kcm_kdm.so
#9  0x00007f20f835397f in KPluginFactory::create (this=0x1dee920, iface=0x7f20f9690640 "KCModule", parentWidget=<value optimized out>, parent=0x15995b0, args=..., keyword=<value optimized out>) at ../../kdecore/util/kpluginfactory.cpp:191
#10 0x00007f20f9b5571b 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 0x00007f20f9b5a699 in KCModuleProxyPrivate::loadModule (this=0x1bb88a0) at ../../kutils/kcmoduleproxy.cpp:106
#16 0x00007f20f9b5b1c5 in KCModuleProxy::realModule (this=<value optimized out>) at ../../kutils/kcmoduleproxy.cpp:83
#17 0x00007f20f99332bc in ModuleView::stateChanged (this=0x175e6d0) at ../../../systemsettings/core/ModuleView.cpp:374
#18 0x00007f20f9935008 in ModuleView::qt_metacall (this=0x175e6d0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffd80e72b0) at ./ModuleView.moc:99
#19 0x00007f20f7b99b27 in QMetaObject::activate (sender=0x1766320, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#20 0x00007f20f9544da8 in KPageWidget::currentPageChanged (this=0x7f20f770ee40, _t1=0x19900d0, _t2=0x0) at ./kpagewidget.moc:96
#21 0x00007f20f9544f48 in KPageWidget::qt_metacall (this=0x1766320, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffd80e73f0) at ./kpagewidget.moc:84
#22 0x00007f20f7b99b27 in QMetaObject::activate (sender=0x1766320, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#23 0x00007f20f953fcf7 in KPageView::currentPageChanged (this=0x7f20f770ee40, _t1=<value optimized out>, _t2=<value optimized out>) at ./kpageview.moc:140
#24 0x00007f20f95414a5 in KPageViewPrivate::_k_pageSelected (this=0x175e440, index=<value optimized out>, previous=...) at ../../kdeui/paged/kpageview.cpp:244
#25 0x00007f20f95416f2 in KPageView::qt_metacall (this=0x1766320, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffd80e7650) at ./kpageview.moc:100
#26 0x00007f20f9544f00 in KPageWidget::qt_metacall (this=0x7f20f770ee40, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x0) at ./kpagewidget.moc:76
#27 0x00007f20f7b99b27 in QMetaObject::activate (sender=0x1666290, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#28 0x00007f20f8d59647 in QItemSelectionModel::selectionChanged (this=0x7f20f770ee40, _t1=<value optimized out>, _t2=<value optimized out>) at .moc/release-shared/moc_qitemselectionmodel.cpp:152
#29 0x00007f20f8d5c815 in QItemSelectionModel::emitSelectionChanged (this=<value optimized out>, newSelection=..., oldSelection=...) at itemviews/qitemselectionmodel.cpp:1525
#30 0x00007f20f8d5e09b in QItemSelectionModel::select (this=0x1666290, selection=<value optimized out>, command=<value optimized out>) at itemviews/qitemselectionmodel.cpp:1088
#31 0x00007f20f8d5af01 in QItemSelectionModel::select (this=0x1666290, index=<value optimized out>, command=) at itemviews/qitemselectionmodel.cpp:976
#32 0x00007f20f8d5989f in QItemSelectionModel::setCurrentIndex (this=0x1666290, index=..., command=<value optimized out>) at itemviews/qitemselectionmodel.cpp:1155
#33 0x00007f20f9540b20 in KPageViewPrivate::_k_rebuildGui (this=0x175e440) at ../../kdeui/paged/kpageview.cpp:70
#34 0x00007f20f9541215 in KPageViewPrivate::_k_modelChanged (this=0x7f20f770ee40) at ../../kdeui/paged/kpageview.cpp:190
#35 0x00007f20f9541702 in KPageView::qt_metacall (this=0x1766320, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffd80e7bc0) at ./kpageview.moc:99
#36 0x00007f20f9544f00 in KPageWidget::qt_metacall (this=0x7f20f770ee40, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x0) at ./kpagewidget.moc:76
#37 0x00007f20f7b99b27 in QMetaObject::activate (sender=0x17640a0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#38 0x00007f20f9933a95 in ModuleView::addModule (this=0x175e6d0, module=0x17d0fe8) at ../../../systemsettings/core/ModuleView.cpp:220
#39 0x00007f20f9933e26 in ModuleView::loadModule (this=0x175e6d0, menuItem=<value optimized out>) at ../../../systemsettings/core/ModuleView.cpp:174
#40 0x00007f20e6656190 in IconMode::changeModule (this=0x177f110, activeModule=...) at ../../../systemsettings/icons/IconMode.cpp:133
#41 0x00007f20e6656261 in IconMode::qt_metacall (this=0x177f110, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffd80e81e0) at ./IconMode.moc:80
#42 0x00007f20f7b99b27 in QMetaObject::activate (sender=0x15042f0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#43 0x00007f20f8cfd705 in QAbstractItemView::activated (this=0x7f20f770ee40, _t1=<value optimized out>) at .moc/release-shared/moc_qabstractitemview.cpp:345
#44 0x00007f20f8d0cefa in QAbstractItemView::mouseReleaseEvent (this=0x15042f0, event=<value optimized out>) at itemviews/qabstractitemview.cpp:1796
#45 0x00007f20f8d2122e in QListView::mouseReleaseEvent (this=0x7f20f770ee40, e=0x0) at itemviews/qlistview.cpp:796
#46 0x00007f20f94dde02 in KCategorizedView::mouseReleaseEvent (this=0x15042f0, event=<value optimized out>) at ../../kdeui/itemviews/kcategorizedview.cpp:1031
#47 0x00007f20f880904e in QWidget::event (this=0x15042f0, event=0x7fffd80e91d0) at kernel/qwidget.cpp:8187
#48 0x00007f20f8bd45e6 in QFrame::event (this=0x15042f0, e=0x7fffd80e91d0) at widgets/qframe.cpp:557
#49 0x00007f20f8d0da8b in QAbstractItemView::viewportEvent (this=0x15042f0, event=0x7fffd80e91d0) at itemviews/qabstractitemview.cpp:1619
#50 0x00007f20f7b81507 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x1761220, event=0x7fffd80e91d0) at kernel/qcoreapplication.cpp:847
#51 0x00007f20f87b2fac in QApplicationPrivate::notify_helper (this=0x15214e0, receiver=0x1761220, e=0x7fffd80e91d0) at kernel/qapplication.cpp:4392
#52 0x00007f20f87b930e in QApplication::notify (this=0x7fffd80e9ed0, receiver=0x1761220, e=0x7fffd80e91d0) at kernel/qapplication.cpp:3959
#53 0x00007f20f9505156 in KApplication::notify (this=0x7fffd80e9ed0, receiver=0x1761220, event=0x7fffd80e91d0) at ../../kdeui/kernel/kapplication.cpp:310
#54 0x00007f20f7b81cdc in QCoreApplication::notifyInternal (this=0x7fffd80e9ed0, receiver=0x1761220, event=0x7fffd80e91d0) at kernel/qcoreapplication.cpp:732
#55 0x00007f20f87b7dbe in sendEvent (receiver=0x1761220, event=0x7fffd80e91d0, alienWidget=0x1761220, nativeWidget=0x16033d0, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#56 QApplicationPrivate::sendMouseEvent (receiver=0x1761220, event=0x7fffd80e91d0, alienWidget=0x1761220, nativeWidget=0x16033d0, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:3058
#57 0x00007f20f883b345 in QETWidget::translateMouseEvent (this=0x16033d0, event=<value optimized out>) at kernel/qapplication_x11.cpp:4403
#58 0x00007f20f8839c5c in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fffd80e9af0) at kernel/qapplication_x11.cpp:3536
#59 0x00007f20f88660e2 in x11EventSourceDispatch (s=0x1518500, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#60 0x00007f20f465b342 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#61 0x00007f20f465f2a8 in ?? () from /lib/libglib-2.0.so.0
#62 0x00007f20f465f45c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#63 0x00007f20f7bae193 in QEventDispatcherGlib::processEvents (this=0x14e81f0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#64 0x00007f20f8865a4e in QGuiEventDispatcherGlib::processEvents (this=0x7f20f770ee40, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#65 0x00007f20f7b80a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#66 0x00007f20f7b80dec in QEventLoop::exec (this=0x7fffd80e9e20, flags=) at kernel/qeventloop.cpp:201
#67 0x00007f20f7b84ebb 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

This bug may be a duplicate of or related to bug 240906.

Possible duplicates by query: bug 253949, bug 249039, bug 240906.

Reported using DrKonqi