Bug 287143

Application: systemsettings (1.0)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
This is one example - System settings crashes, nepomuk crashes, akonadi crashes

The crash can be reproduced every time.

-- Backtrace:
Application: Ustawienia systemowe (systemsettings), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f85ec555780 (LWP 21026))]

Thread 2 (Thread 0x7f85d5476700 (LWP 21027)):
#0  0x00007f85e9a25773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f85e72e3f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f85e72e4429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f85ea18df3e in QEventDispatcherGlib::processEvents (this=0x24c6e90, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f85ea161cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f85ea161ef7 in QEventLoop::exec (this=0x7f85d5475dd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f85ea07927f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f85ea144cbf in QInotifyFileSystemWatcherEngine::run (this=0x244e570) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f85ea07bd05 in QThreadPrivate::start (arg=0x244e570) at thread/qthread_unix.cpp:331
#9  0x00007f85e77b5efc in start_thread (arg=0x7f85d5476700) at pthread_create.c:304
#10 0x00007f85e9a3189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f85ec555780 (LWP 21026)):
[KCrash Handler]
#6  QAbstractScrollArea::viewport (this=0x0) at widgets/qabstractscrollarea.cpp:574
#7  0x00007f85dcd30744 in QSpiAccessibleBridge::interfaceToAccessible(QAccessibleInterface*, int, bool) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#8  0x00007f85dcd32086 in QSpiAccessibleBridge::notifyAccessibilityUpdate(int, QAccessibleInterface*, int) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#9  0x00007f85eb2e2299 in QAccessible::updateAccessibility (o=<optimized out>, who=1, reason=QAccessible::Selection) at accessible/qaccessible_unix.cpp:107
#10 0x00007f85eb309671 in QListView::selectionChanged (this=0x226a7f0, selected=..., deselected=...) at itemviews/qlistview.cpp:3116
#11 0x00007f85eb2eb0b9 in QAbstractItemView::qt_metacall (this=0x226a7f0, _c=QMetaObject::InvokeMetaMethod, _id=19, _a=0x7fff71ec1fc0) at .moc/release-shared/moc_qabstractitemview.cpp:237
#12 0x00007f85eb4542b5 in QListView::qt_metacall (this=0x226a7f0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff71ec1fc0) at .moc/release-shared/moc_qlistview.cpp:111
#13 0x00007f85ebb21138 in KDEPrivate::KPageListView::qt_metacall (this=0x226a7f0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=<optimized out>) at ./kpageview_p.moc:67
#14 0x00007f85ea175eba in QMetaObject::activate (sender=0x276ec40, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff71ec1fc0) at kernel/qobject.cpp:3278
#15 0x00007f85eb33ae97 in QItemSelectionModel::selectionChanged (this=<optimized out>, _t1=<optimized out>, _t2=<optimized out>) at .moc/release-shared/moc_qitemselectionmodel.cpp:152
#16 0x00007f85eb340c94 in QItemSelectionModel::emitSelectionChanged (this=0x276ec40, newSelection=..., oldSelection=...) at itemviews/qitemselectionmodel.cpp:1538
#17 0x00007f85eb341c1f in QItemSelectionModel::select (this=0x276ec40, selection=<optimized out>, command=...) at itemviews/qitemselectionmodel.cpp:1101
#18 0x00007f85ebb207bc in select (command=<optimized out>, selection=<optimized out>, this=<optimized out>) at ../../kdeui/paged/kpageview_p.cpp:619
#19 KDEPrivate::SelectionModel::select (this=<optimized out>, selection=<optimized out>, command=<optimized out>) at ../../kdeui/paged/kpageview_p.cpp:613
#20 0x00007f85eb33cd2a in QItemSelectionModel::select (this=0x276ec40, index=<optimized out>, command=...) at itemviews/qitemselectionmodel.cpp:976
#21 0x00007f85ebb20809 in select (command=<optimized out>, index=<optimized out>, this=<optimized out>) at ../../kdeui/paged/kpageview_p.cpp:610
#22 KDEPrivate::SelectionModel::select (this=<optimized out>, index=<optimized out>, command=<optimized out>) at ../../kdeui/paged/kpageview_p.cpp:604
#23 0x00007f85eb33b107 in QItemSelectionModel::setCurrentIndex (this=0x276ec40, index=..., command=<optimized out>) at itemviews/qitemselectionmodel.cpp:1168
#24 0x00007f85ebb1e6a0 in KPageViewPrivate::_k_rebuildGui (this=0x1e22f30) at ../../kdeui/paged/kpageview.cpp:68
#25 0x00007f85ebb1f7c5 in KPageViewPrivate::_k_modelChanged (this=0x1e22f30) at ../../kdeui/paged/kpageview.cpp:190
#26 0x00007f85ebb1fc52 in KPageView::qt_metacall (this=0x2267d70, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0x7fff71ec2530) at ./kpageview.moc:99
#27 0x00007f85ebb22f30 in KPageWidget::qt_metacall (this=0x2267d70, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff71ec2530) at ./kpagewidget.moc:76
#28 0x00007f85ea175eba in QMetaObject::activate (sender=0x226a420, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3278
#29 0x00007f85ebb246ab in KPageWidgetModel::removePage (this=0x226a420, item=<optimized out>) at ../../kdeui/paged/kpagewidgetmodel.cpp:517
#30 0x00007f85ebf31405 in ModuleView::closeModules (this=0x2260cb0) at ../../../systemsettings/core/ModuleView.cpp:269
#31 0x00007f85d77096a7 in backToOverview (this=0x2267af0) at ../../../systemsettings/icons/IconMode.cpp:147
#32 IconMode::backToOverview (this=0x2267af0) at ../../../systemsettings/icons/IconMode.cpp:143
#33 0x00007f85d770993c in IconMode::qt_metacall (this=0x2267af0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff71ec2730) at ./IconMode.moc:82
#34 0x00007f85ea175eba in QMetaObject::activate (sender=0x222a980, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff71ec2730) at kernel/qobject.cpp:3278
#35 0x00007f85eadd5b62 in QAction::triggered (this=<optimized out>, _t1=false) at .moc/release-shared/moc_qaction.cpp:263
#36 0x00007f85eadd5d4f in QAction::activate (this=0x222a980, event=<optimized out>) at kernel/qaction.cpp:1257
#37 0x00007f85eb19443a in QAbstractButtonPrivate::click (this=0x244c150) at widgets/qabstractbutton.cpp:528
#38 0x00007f85eb1946ec in QAbstractButton::mouseReleaseEvent (this=0x244be30, e=0x7fff71ec2e50) at widgets/qabstractbutton.cpp:1121
#39 0x00007f85eb2512da in QToolButton::mouseReleaseEvent (this=<optimized out>, e=<optimized out>) at widgets/qtoolbutton.cpp:721
#40 0x00007f85eae2cc9a in QWidget::event (this=0x244be30, event=0x7fff71ec2e50) at kernel/qwidget.cpp:8295
#41 0x00007f85eaddc424 in notify_helper (e=0x7fff71ec2e50, receiver=0x244be30, this=0x1e24dc0) at kernel/qapplication.cpp:4486
#42 QApplicationPrivate::notify_helper (this=0x1e24dc0, receiver=0x244be30, e=0x7fff71ec2e50) at kernel/qapplication.cpp:4458
#43 0x00007f85eade1c6b in QApplication::notify (this=<optimized out>, receiver=0x244be30, e=0x7fff71ec2e50) at kernel/qapplication.cpp:4047
#44 0x00007f85ebaf0126 in KApplication::notify (this=0x7fff71ec3ab0, receiver=0x244be30, event=0x7fff71ec2e50) at ../../kdeui/kernel/kapplication.cpp:311
#45 0x00007f85ea162afc in QCoreApplication::notifyInternal (this=0x7fff71ec3ab0, receiver=0x244be30, event=0x7fff71ec2e50) at kernel/qcoreapplication.cpp:787
#46 0x00007f85eaddd3f2 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#47 QApplicationPrivate::sendMouseEvent (receiver=0x244be30, event=0x7fff71ec2e50, alienWidget=0x244be30, nativeWidget=0x2165240, buttonDown=0x244be30, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#48 0x00007f85eae5c945 in QETWidget::translateMouseEvent (this=0x2165240, event=<optimized out>) at kernel/qapplication_x11.cpp:4568
#49 0x00007f85eae5b8be in QApplication::x11ProcessEvent (this=0x7fff71ec3ab0, event=0x7fff71ec3670) at kernel/qapplication_x11.cpp:3690
#50 0x00007f85eae84412 in x11EventSourceDispatch (s=0x1e28880, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#51 0x00007f85e72e3a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007f85e72e4258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#53 0x00007f85e72e4429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#54 0x00007f85ea18ded6 in QEventDispatcherGlib::processEvents (this=0x1dffa10, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#55 0x00007f85eae8407e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#56 0x00007f85ea161cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#57 0x00007f85ea161ef7 in QEventLoop::exec (this=0x7fff71ec3a40, flags=...) at kernel/qeventloop.cpp:201
#58 0x00007f85ea166789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#59 0x000000000040a7c5 in main (argc=1, argv=0x7fff71ec3d78) at ../../../systemsettings/app/main.cpp:49

Possible duplicates by query: bug 287114, bug 286720, bug 286105, bug 284156, bug 284005.

Reported using DrKonqi