Bug 233308

Application: systemsettings (1.0)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-19-generic x86_64
Distribution: Ubuntu lucid (development branch)

-- Information about the crash:
when i try to navigate into menus, i had this crash.

The crash can be reproduced some of the time.

 -- Backtrace:
Application: Impostazioni di sistema (systemsettings), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f6b4d1cb760 (LWP 5527))]

Thread 2 (Thread 0x7f6b3db64710 (LWP 5528)):
#0  0x00007f6b4a73af93 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f6b4796b4a9 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f6b4796b8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007f6b4ae8e566 in QEventDispatcherGlib::processEvents (this=0x15035d0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#4  0x00007f6b4ae63992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f6b4ae63d6c in QEventLoop::exec (this=0x7f6b3db63db0, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f6b4ad6dd59 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#7  0x00007f6b4ae44178 in QInotifyFileSystemWatcherEngine::run (this=0x1585ef0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f6b4ad70775 in QThreadPrivate::start (arg=0x1585ef0) at thread/qthread_unix.cpp:248
#9  0x00007f6b482dd9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007f6b4a7476dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f6b4d1cb760 (LWP 5527)):
[KCrash Handler]
#5  QWidget::ensurePolished (this=0x17d3510) at kernel/qwidget.cpp:9335
#6  0x00007f6b4baa7297 in QWidgetPrivate::activateChildLayoutsRecursively (this=0x1403740) at kernel/qwidget.cpp:7111
#7  0x00007f6b4baa72c0 in QWidgetPrivate::activateChildLayoutsRecursively (this=0x14027b0) at kernel/qwidget.cpp:7124
#8  0x00007f6b4baa72c0 in QWidgetPrivate::activateChildLayoutsRecursively (this=0x1401b50) at kernel/qwidget.cpp:7124
#9  0x00007f6b4baa72c0 in QWidgetPrivate::activateChildLayoutsRecursively (this=0x1406080) at kernel/qwidget.cpp:7124
#10 0x00007f6b4baa72c0 in QWidgetPrivate::activateChildLayoutsRecursively (this=0x10e0f40) at kernel/qwidget.cpp:7124
#11 0x00007f6b4baa72c0 in QWidgetPrivate::activateChildLayoutsRecursively (this=0x113abf0) at kernel/qwidget.cpp:7124
#12 0x00007f6b4baac8a8 in QWidgetPrivate::prepareToRender (this=0x1d2cfb0, region=<value optimized out>, renderFlags=<value optimized out>) at kernel/qwidget.cpp:5153
#13 0x00007f6b4bab1577 in QWidget::render (this=<value optimized out>, target=0x7fffff74b7c0, targetOffset=..., sourceRegion=..., renderFlags=) at kernel/qwidget.cpp:4871
#14 0x00007f6b433fd55b in Oxygen::TransitionWidget::grabWidget (this=<value optimized out>, pixmap=..., widget=0x1d2bae0, rect=<value optimized out>)
    at ../../../kstyles/oxygen/transitions/oxygentransitionwidget.cpp:228
#15 0x00007f6b433fddd4 in Oxygen::TransitionWidget::grab (this=0x18433d0, widget=0x1d2bae0, rect=...) at ../../../kstyles/oxygen/transitions/oxygentransitionwidget.cpp:91
#16 0x00007f6b433fb36f in Oxygen::StackedWidgetData::initializeAnimation (this=0x18430d0) at ../../../kstyles/oxygen/transitions/oxygenstackedwidgetdata.cpp:79
#17 0x00007f6b433fb69c in Oxygen::StackedWidgetData::qt_metacall (this=0x18430d0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fffff74b9c0) at ./oxygenstackedwidgetdata.moc:76
#18 0x00007f6b4ae77e3f in QMetaObject::activate (sender=0x17f1330, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3293
#19 0x00007f6b4c0f227e in QStackedWidget::currentChanged (this=0x0, _t1=2) at .moc/release-shared/moc_qstackedwidget.cpp:131
#20 0x00007f6b4c0f23ee in QStackedWidget::qt_metacall (this=0x17f1330, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fffff74bb00) at .moc/release-shared/moc_qstackedwidget.cpp:88
#21 0x00007f6b4ae77e3f in QMetaObject::activate (sender=0x17f7640, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3293
#22 0x00007f6b4c0e9811 in QStackedLayout::currentChanged (this=0x0, _t1=2) at .moc/release-shared/moc_qstackedlayout.cpp:147
#23 0x00007f6b4ba92173 in QStackedLayout::takeAt (this=0x17f7640, index=2) at kernel/qstackedlayout.cpp:265
#24 0x00007f6b4ba828bf in removeWidgetRecursively (li=<value optimized out>, w=0x1c6fd00) at kernel/qlayout.cpp:661
#25 0x00007f6b4ba521ee in QApplicationPrivate::notify_helper (this=0x1088980, receiver=0x17f1330, e=0x7fffff74c0b0) at kernel/qapplication.cpp:4291
#26 0x00007f6b4ba586fb in QApplication::notify (this=0x7fffff74dd20, receiver=0x17f1330, e=0x7fffff74c0b0) at kernel/qapplication.cpp:4183
#27 0x00007f6b4c75d526 in KApplication::notify (this=0x7fffff74dd20, receiver=0x17f1330, event=0x7fffff74c0b0) at ../../kdeui/kernel/kapplication.cpp:302
#28 0x00007f6b4ae6506c in QCoreApplication::notifyInternal (this=0x7fffff74dd20, receiver=0x17f1330, event=0x7fffff74c0b0) at kernel/qcoreapplication.cpp:704
#29 0x00007f6b4ae78bbe in QCoreApplication::sendEvent (this=0x1c73910, o=0x0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#30 QObjectPrivate::setParent_helper (this=0x1c73910, o=0x0) at kernel/qobject.cpp:2012
#31 0x00007f6b4ae7ab09 in ~QObject (this=<value optimized out>, __in_chrg=<value optimized out>) at kernel/qobject.cpp:982
#32 0x00007f6b4baaf35e in ~QWidget (this=0x1c6fd00, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1485
#33 0x00007f6b4c6f23eb in ~KShortcutsEditor (this=0x1c6fd00, __in_chrg=<value optimized out>) at ../../kdeui/dialogs/kshortcutseditor.cpp:77
#34 0x00007f6b38f9546c in ~ComponentData (this=0x1c91100, __in_chrg=<value optimized out>) at ../../../kcontrol/keys/kglobalshortcutseditor.cpp:97
#35 0x00007f6b38f96219 in qDeleteAll<QList<ComponentData*>::const_iterator> (this=0x17f4d90, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qalgorithms.h:322
#36 qDeleteAll<QList<ComponentData*> > (this=0x17f4d90, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qalgorithms.h:330
#37 ~KGlobalShortcutsEditor (this=0x17f4d90, __in_chrg=<value optimized out>) at ../../../kcontrol/keys/kglobalshortcutseditor.cpp:189
#38 0x00007f6b4ae73a5c in QObjectPrivate::deleteChildren (this=0x17fa570) at kernel/qobject.cpp:1986
#39 0x00007f6b4baaf2d5 in ~QWidget (this=0x17f5050, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1469
#40 0x00007f6b38f9c23e in ~GlobalShortcutsModule (this=0x0, __in_chrg=<value optimized out>) at ../../../kcontrol/keys/globalshortcuts.cpp:54
#41 0x00007f6b4cdb45a4 in KCModuleProxy::deleteClient (this=<value optimized out>) at ../../kutils/kcmoduleproxy.cpp:219
#42 0x00007f6b4cdb6096 in ~KCModuleProxy (this=0x0, __in_chrg=<value optimized out>) at ../../kutils/kcmoduleproxy.cpp:210
#43 0x00007f6b4ae73a5c in QObjectPrivate::deleteChildren (this=0x17e7770) at kernel/qobject.cpp:1986
#44 0x00007f6b4baae7e5 in ~QWidget (this=0x16ad6f0, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1469
#45 0x00007f6b4ae73a5c in QObjectPrivate::deleteChildren (this=0x17e74c0) at kernel/qobject.cpp:1986
#46 0x00007f6b4baaf2d5 in ~QWidget (this=0x17d3510, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1469
#47 0x00007f6b4bedf851 in ~QScrollArea (this=0x0, __in_chrg=<value optimized out>) at widgets/qscrollarea.cpp:176
#48 0x00007f6b4c79e4f0 in ~Private (this=0x17eb940, __in_chrg=<value optimized out>) at ../../kdeui/paged/kpagewidgetmodel.cpp:40
#49 ~KPageWidgetItem (this=0x17eb940, __in_chrg=<value optimized out>) at ../../kdeui/paged/kpagewidgetmodel.cpp:84
#50 0x00007f6b4c79da8b in ~PageItem (this=0x1764760, __in_chrg=<value optimized out>) at ../../kdeui/paged/kpagewidgetmodel.cpp:174
#51 0x00007f6b4c79e3b7 in KPageWidgetModel::removePage (this=0x14087a0, item=<value optimized out>) at ../../kdeui/paged/kpagewidgetmodel.cpp:481
#52 0x00007f6b4cb81bb2 in ModuleView::closeModules (this=0x1401030) at ../../../systemsettings/core/ModuleView.cpp:283
#53 0x00007f6b3fb65d47 in IconMode::backToOverview (this=0x1386230) at ../../../systemsettings/icons/IconMode.cpp:153
#54 0x00007f6b3fb6641c in IconMode::qt_metacall (this=0x1386230, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffff74c6c0) at ./IconMode.moc:82
#55 0x00007f6b4ae77e3f in QMetaObject::activate (sender=0x13888c0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3293
#56 0x00007f6b4ba4c032 in QAction::triggered (this=0x0, _t1=false) at .moc/release-shared/moc_qaction.cpp:263
#57 0x00007f6b4ba4e0ab in QAction::activate (this=0x13888c0, event=<value optimized out>) at kernel/qaction.cpp:1255
#58 0x00007f6b4be0857a in QAbstractButtonPrivate::click (this=0x15081d0) at widgets/qabstractbutton.cpp:528
#59 0x00007f6b4be0882c in QAbstractButton::mouseReleaseEvent (this=0x1508000, e=0x7fffff74d020) at widgets/qabstractbutton.cpp:1121
#60 0x00007f6b4bed477a in QToolButton::mouseReleaseEvent (this=0x0, e=0x46) at widgets/qtoolbutton.cpp:721
#61 0x00007f6b4baa8582 in QWidget::event (this=0x1508000, event=0x7fffff74d020) at kernel/qwidget.cpp:7998
#62 0x00007f6b4ba5222c in QApplicationPrivate::notify_helper (this=0x1088980, receiver=0x1508000, e=0x7fffff74d020) at kernel/qapplication.cpp:4300
#63 0x00007f6b4ba58ecb in QApplication::notify (this=0x7fffff74dd20, receiver=0x1508000, e=0x7fffff74d020) at kernel/qapplication.cpp:3865
#64 0x00007f6b4c75d526 in KApplication::notify (this=0x7fffff74dd20, receiver=0x1508000, event=0x7fffff74d020) at ../../kdeui/kernel/kapplication.cpp:302
#65 0x00007f6b4ae6506c in QCoreApplication::notifyInternal (this=0x7fffff74dd20, receiver=0x1508000, event=0x7fffff74d020) at kernel/qcoreapplication.cpp:704
#66 0x00007f6b4ba580ae in QCoreApplication::sendEvent (receiver=0x1508000, event=0x7fffff74d020, alienWidget=0x1508000, nativeWidget=0x113aae0, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#67 QApplicationPrivate::sendMouseEvent (receiver=0x1508000, event=0x7fffff74d020, alienWidget=0x1508000, nativeWidget=0x113aae0, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:2965
#68 0x00007f6b4bad7f65 in QETWidget::translateMouseEvent (this=0x113aae0, event=<value optimized out>) at kernel/qapplication_x11.cpp:4368
#69 0x00007f6b4bad68ac in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fffff74d940) at kernel/qapplication_x11.cpp:3501
#70 0x00007f6b4bb02732 in x11EventSourceDispatch (s=0x108c1d0, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#71 0x00007f6b479678c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#72 0x00007f6b4796b748 in ?? () from /lib/libglib-2.0.so.0
#73 0x00007f6b4796b8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#74 0x00007f6b4ae8e513 in QEventDispatcherGlib::processEvents (this=0x1056770, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#75 0x00007f6b4bb0231e in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#76 0x00007f6b4ae63992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#77 0x00007f6b4ae63d6c in QEventLoop::exec (this=0x7fffff74dc70, flags=) at kernel/qeventloop.cpp:201
#78 0x00007f6b4ae67aab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#79 0x00000000004110d9 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../systemsettings/app/main.cpp:49

Possible duplicates by query: bug 231547, bug 231410, bug 230710, bug 218917, bug 218472.

Reported using DrKonqi