Bug 318772

Application: systemsettings (1.0)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-40-generic-pae i686
Distribution: Ubuntu 12.04.2 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I was trying to access the screensaver config panel in System settings/Display and Monitor.
Screensaver is  installed and works well. It's just impossible to access the config panel.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb4e40740 (LWP 10327))]

Thread 2 (Thread 0xb07afb40 (LWP 10328)):
#0  0xb5472dcd in __GI_clock_gettime (clock_id=1, tp=0xb07aefb8) at ../sysdeps/unix/clock_gettime.c:116
#1  0xb6263315 in do_gettime (frac=0xb07aefb0, sec=0xb07aefa8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb634d226 in QTimerInfoList::updateCurrentTime (this=0xafe02074) at kernel/qeventdispatcher_unix.cpp:343
#4  0xb634d57a in QTimerInfoList::timerWait (this=0xafe02074, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#5  0xb634be23 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xb07af0bc) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb634bebd in timerSourcePrepare (source=0xafe02040, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb5696872 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb5696faf in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb5697201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb634c8e7 in QEventDispatcherGlib::processEvents (this=0xafe00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#11 0xb631850d in QEventLoop::processEvents (this=0xb07af240, flags=...) at kernel/qeventloop.cpp:149
#12 0xb63187a9 in QEventLoop::exec (this=0xb07af240, flags=...) at kernel/qeventloop.cpp:204
#13 0xb620194c in QThread::exec (this=0x8c73d50) at thread/qthread.cpp:501
#14 0xb62f5b5d in QInotifyFileSystemWatcherEngine::run (this=0x8c73d50) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb6204de0 in QThreadPrivate::start (arg=0x8c73d50) at thread/qthread_unix.cpp:298
#16 0xb5768d4c in start_thread (arg=0xb07afb40) at pthread_create.c:308
#17 0xb5ffbd3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb4e40740 (LWP 10327)):
[KCrash Handler]
#7  0xb6efd256 in sibling (acolumn=0, arow=1029532787, this=0x90ab828) at ../../include/QtCore/../../src/corelib/kernel/qabstractitemmodel.h:396
#8  QTreeViewPrivate::viewIndex (this=0x8fd1870, _index=...) at itemviews/qtreeview.cpp:3400
#9  0xb26bfe57 in QAccessibleTree::indexOfChild (this=0x90a79b0, iface=0x90ab820) at itemviews.cpp:535
#10 0xb26fc0f8 in AtSpiAdaptor::pathForInterface(QAccessibleInterface*, int, bool) const () from /usr/lib/i386-linux-gnu/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#11 0xb26fe82e in AtSpiAdaptor::sendFocusChanged(QAccessibleInterface*, int) const () from /usr/lib/i386-linux-gnu/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#12 0xb270913c in AtSpiAdaptor::notify(int, QAccessibleInterface*, int) () from /usr/lib/i386-linux-gnu/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#13 0xb26e9686 in QSpiAccessibleBridge::notifyAccessibilityUpdate(int, QAccessibleInterface*, int) () from /usr/lib/i386-linux-gnu/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#14 0xb6eb1ef3 in QAccessible::updateAccessibility (o=0x8f322d0, who=0, reason=QAccessible::Focus) at accessible/qaccessible_unix.cpp:118
#15 0xb6efdb48 in QTreeView::currentChanged (this=0x8f322d0, current=..., previous=...) at itemviews/qtreeview.cpp:3770
#16 0xb6eb92e0 in qt_static_metacall (_a=0xbfdf3d84, _id=20, _o=0x8f322d0, _c=<optimized out>) at .moc/release-shared/moc_qabstractitemview.cpp:217
#17 QAbstractItemView::qt_static_metacall (_o=0x8f322d0, _c=QMetaObject::InvokeMetaMethod, _id=20, _a=0xbfdf3d84) at .moc/release-shared/moc_qabstractitemview.cpp:191
#18 0xb63306b1 in QMetaObject::activate (sender=0x8de95b8, m=0xb728b868, local_signal_index=1, argv=0xbfdf3d84) at kernel/qobject.cpp:3547
#19 0xb6f1663d in QItemSelectionModel::currentChanged (this=0x8de95b8, _t1=..., _t2=...) at .moc/release-shared/moc_qitemselectionmodel.cpp:173
#20 0xb6f167bc in QItemSelectionModel::setCurrentIndex (this=0x8de95b8, index=..., command=...) at itemviews/qitemselectionmodel.cpp:1175
#21 0xb6eb43d7 in QAbstractItemView::setCurrentIndex (this=0x8f322d0, index=...) at itemviews/qabstractitemview.cpp:1022
#22 0xb6f3c2e8 in QTreeWidget::setCurrentItem (this=0x8f322d0, item=0x90a6870, column=3) at itemviews/qtreewidget.cpp:2815
#23 0xb081e309 in KScreenSaver::findSavers (this=0x8fcdb10) at ../../../kcontrol/screensaver/scrnsave.cpp:473
#24 0xb63306b1 in QMetaObject::activate (sender=0x9049900, m=0xb64774d8, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3547
#25 0xb6383625 in QTimer::timeout (this=0x9049900) at .moc/release-shared/moc_qtimer.cpp:148
#26 0xb6339566 in QTimer::timerEvent (this=0x9049900, e=0xbfdf458c) at kernel/qtimer.cpp:280
#27 0xb6334ac4 in QObject::event (this=0x9049900, e=0xbfdf458c) at kernel/qobject.cpp:1157
#28 0xb6905ed4 in notify_helper (e=0xbfdf458c, receiver=0x9049900, this=0x87e0820) at kernel/qapplication.cpp:4559
#29 QApplicationPrivate::notify_helper (this=0x87e0820, receiver=0x9049900, e=0xbfdf458c) at kernel/qapplication.cpp:4531
#30 0xb690b30d in QApplication::notify (this=0xbfdf458c, receiver=0x9049900, e=0xbfdf458c) at kernel/qapplication.cpp:4288
#31 0xb748ae01 in KApplication::notify (this=0xbfdf489c, receiver=0x9049900, event=0xbfdf458c) at ../../kdeui/kernel/kapplication.cpp:311
#32 0xb631997e in QCoreApplication::notifyInternal (this=0xbfdf489c, receiver=0x9049900, event=0xbfdf458c) at kernel/qcoreapplication.cpp:876
#33 0xb634e990 in sendEvent (event=0xbfdf458c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#34 QTimerInfoList::activateTimers (this=0x87e03ac) at kernel/qeventdispatcher_unix.cpp:611
#35 0xb634c0f8 in timerSourceDispatch (source=0x87e0378) at kernel/qeventdispatcher_glib.cpp:186
#36 timerSourceDispatch (source=0x87e0378) at kernel/qeventdispatcher_glib.cpp:180
#37 0xb5696d86 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#38 0xb5697125 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#39 0xb5697201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#40 0xb634c887 in QEventDispatcherGlib::processEvents (this=0x87ba798, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#41 0xb69beaaa in QGuiEventDispatcherGlib::processEvents (this=0x87ba798, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#42 0xb631850d in QEventLoop::processEvents (this=0xbfdf47f4, flags=...) at kernel/qeventloop.cpp:149
#43 0xb63187a9 in QEventLoop::exec (this=0xbfdf47f4, flags=...) at kernel/qeventloop.cpp:204
#44 0xb631deba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#45 0xb6903a74 in QApplication::exec () at kernel/qapplication.cpp:3820
#46 0x080502b8 in main (argc=<error reading variable: Cannot access memory at address 0xc>, argv=<error reading variable: Cannot access memory at address 0x10>) at ../../../systemsettings/app/main.cpp:49

Reported using DrKonqi