I don't know if I'm submitting this in the right category. I couldn't find system settings for plasmashell.

If I'm changing settings in a system settings page and change the page without saving the changes first, system settings crash. In earlier versions of KDE (aka KDE 4), a dialog was displayed, asking if I would like to save my changes first.

Steps to reproduce:
Go to
- system settings
- workspace behaviour
- virtual desktops, then change number of virtual desktops or any other setting (don't save changes)
- go to "screen locking"

-> Crash

It also works with any other setting dialog that i've checked.

Developer info from drkonqi:

Application: System Settings (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f790710f780 (LWP 5508))]

Thread 3 (Thread 0x7f78f7190700 (LWP 5509)):
#0  0x00007f7902c8bfbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f7901533b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f790153564f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f78f9140c0b in QXcbEventReader::run (this=0xef6c50) at qxcbconnection.cpp:1034
#4  0x00007f7903313e11 in QThreadPrivate::start (arg=0xef6c50) at thread/qthread_unix.cpp:345
#5  0x00007f78ffd0c182 in start_thread (arg=0x7f78f7190700) at pthread_create.c:312
#6  0x00007f7902c9930d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f78e89c0700 (LWP 5510)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f78eb22b4c3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007f78eb22ae07 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x00007f78ffd0c182 in start_thread (arg=0x7f78e89c0700) at pthread_create.c:312
#4  0x00007f7902c9930d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f790710f780 (LWP 5508)):
[KCrash Handler]
#6  ref (this=<optimized out>) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86_64.h:121
#7  QList (this=0x7f78dcf234f8 <QPrinterInfoPrivate::shared_null+24>) at ../../include/QtCore/../../src/corelib/tools/qlist.h:121
#8  QPrinterInfoPrivate (name=..., this=0x7f78dcf234e0 <QPrinterInfoPrivate::shared_null>) at painting/qprinterinfo_p.h:71
#9  __static_initialization_and_destruction_0 (__initialize_p=1, __priority=65535) at painting/qprinterinfo.cpp:35
#10 _GLOBAL__sub_I_qprinterinfo.cpp(void) () at painting/qprinterinfo.cpp:163
#11 0x00007f7906f4613a in call_init (l=<optimized out>, argc=argc@entry=1, argv=argv@entry=0x7fffd990ae48, env=env@entry=0x7fffd990ae58) at dl-init.c:78
#12 0x00007f7906f46223 in call_init (env=<optimized out>, argv=<optimized out>, argc=<optimized out>, l=<optimized out>) at dl-init.c:36
#13 _dl_init (main_map=main_map@entry=0x155b5c0, argc=1, argv=0x7fffd990ae48, env=0x7fffd990ae58) at dl-init.c:126
#14 0x00007f7906f4ac70 in dl_open_worker (a=a@entry=0x7fffd9906b68) at dl-open.c:577
#15 0x00007f7906f45ff4 in _dl_catch_error (objname=objname@entry=0x7fffd9906b58, errstring=errstring@entry=0x7fffd9906b60, mallocedp=mallocedp@entry=0x7fffd9906b50, operate=operate@entry=0x7f7906f4a9a0 <dl_open_worker>, args=args@entry=0x7fffd9906b68) at dl-error.c:187
#16 0x00007f7906f4a3bb in _dl_open (file=0x1558340 "/usr/lib/vlc/plugins/gui/libqt4_plugin.so", mode=-2147483647, caller_dlopen=<optimized out>, nsid=-2, argc=1, argv=0x7fffd990ae48, env=0x7fffd990ae58) at dl-open.c:661
#17 0x00007f78fe36402b in dlopen_doit (a=a@entry=0x7fffd9906d80) at dlopen.c:66
#18 0x00007f7906f45ff4 in _dl_catch_error (objname=0xedf920, errstring=0xedf928, mallocedp=0xedf918, operate=0x7f78fe363fd0 <dlopen_doit>, args=0x7fffd9906d80) at dl-error.c:187
#19 0x00007f78fe36462d in _dlerror_run (operate=operate@entry=0x7f78fe363fd0 <dlopen_doit>, args=args@entry=0x7fffd9906d80) at dlerror.c:163
#20 0x00007f78fe3640c1 in __dlopen (file=file@entry=0x1558340 "/usr/lib/vlc/plugins/gui/libqt4_plugin.so", mode=<optimized out>) at dlopen.c:87
#21 0x00007f78e1881e9f in module_Load (p_this=p_this@entry=0x146b2d8, path=path@entry=0x1558340 "/usr/lib/vlc/plugins/gui/libqt4_plugin.so", p_handle=p_handle@entry=0x7fffd9906dd8, lazy=<optimized out>) at posix/plugin.c:60
#22 0x00007f78e186b62d in module_InitDynamic (obj=0x146b2d8, path=0x1558340 "/usr/lib/vlc/plugins/gui/libqt4_plugin.so", fast=<optimized out>) at modules/bank.c:586
#23 0x00007f78e186b927 in AllocatePluginFile (st=<optimized out>, relpath=<optimized out>, abspath=<optimized out>, bank=<optimized out>) at modules/bank.c:529
#24 AllocatePluginDir (bank=0x7fffd9907030, maxdepth=3650137672, absdir=0x7fffd990ae01 "", reldir=0x1538ec0 "gui") at modules/bank.c:490
#25 0x00007f78e186bb99 in AllocatePluginDir (bank=0x7fffd9907030, maxdepth=3650137672, maxdepth@entry=5, absdir=0x7fffd990ae01 "", absdir@entry=0x14a30b0 "/usr/lib/vlc/plugins", reldir=0x0) at modules/bank.c:494
#26 0x00007f78e186be04 in AllocatePluginPath (p_this=p_this@entry=0x146b2d8, path=0x14a30b0 "/usr/lib/vlc/plugins", mode=mode@entry=CACHE_USE) at modules/bank.c:403
#27 0x00007f78e186c357 in AllocateAllPlugins (p_this=0x146b2d8) at modules/bank.c:330
#28 module_LoadPlugins (obj=obj@entry=0x146b2d8) at modules/bank.c:186
#29 0x00007f78e1803d1d in libvlc_InternalInit (p_libvlc=p_libvlc@entry=0x146b2d8, i_argc=i_argc@entry=11, ppsz_argv=ppsz_argv@entry=0x7fffd99071b0) at libvlc.c:159
#30 0x00007f78e15deb83 in libvlc_new (argc=10, argv=<optimized out>) at core.c:59
#31 0x00007f78e1b012de in LibVLC::init () at /build/buildd/project-neon5-phonon4qt5-vlc-0.0+git20140618+r578~d3837d9+neon14~ubuntu14.04.1/src/utils/libvlc.cpp:117
#32 0x00007f78e1aea957 in Phonon::VLC::Backend::Backend (this=0x1439200, parent=<optimized out>) at /build/buildd/project-neon5-phonon4qt5-vlc-0.0+git20140618+r578~d3837d9+neon14~ubuntu14.04.1/src/backend.cpp:89
#33 0x00007f78e1b0373b in qt_plugin_instance () at /build/buildd/project-neon5-phonon4qt5-vlc-0.0+git20140618+r578~d3837d9+neon14~ubuntu14.04.1/obj-x86_64-linux-gnu/src/moc_backend.cpp:237
#34 0x00007f790356dadd in QPluginLoader::instance (this=0x7fffd9907680) at plugin/qpluginloader.cpp:200
#35 0x00007f78f58790ad in Phonon::FactoryPrivate::tryCreateBackend (this=this@entry=0x1459270, path=...) at /build/buildd/project-neon5-phonon4qt5-0.0+git20140618.1+r2823~6f55b90+neon5~ubuntu14.04.1/phonon/factory.cpp:117
#36 0x00007f78f587a3c6 in Phonon::FactoryPrivate::createSuitableBackend (this=this@entry=0x1459270, libPath=..., plugins=...) at /build/buildd/project-neon5-phonon4qt5-0.0+git20140618.1+r2823~6f55b90+neon5~ubuntu14.04.1/phonon/factory.cpp:215
#37 0x00007f78f587a802 in Phonon::FactoryPrivate::createBackend (this=0x1459270) at /build/buildd/project-neon5-phonon4qt5-0.0+git20140618.1+r2823~6f55b90+neon5~ubuntu14.04.1/phonon/factory.cpp:299
#38 0x00007f78f587ab34 in Phonon::Factory::backend (createWhenNull=createWhenNull@entry=true) at /build/buildd/project-neon5-phonon4qt5-0.0+git20140618.1+r2823~6f55b90+neon5~ubuntu14.04.1/phonon/factory.cpp:572
#39 0x00007f78f587ad27 in Phonon::Factory::createAudioOutput (parent=0x13fbac0) at /build/buildd/project-neon5-phonon4qt5-0.0+git20140618.1+r2823~6f55b90+neon5~ubuntu14.04.1/phonon/factory.cpp:466
#40 0x00007f78f5872978 in Phonon::AudioOutputPrivate::createBackendObject (this=0x126e730) at /build/buildd/project-neon5-phonon4qt5-0.0+git20140618.1+r2823~6f55b90+neon5~ubuntu14.04.1/phonon/audiooutput.cpp:130
#41 0x00007f78f5871777 in Phonon::AudioOutputPrivate::init (this=0x126e730, c=Phonon::NotificationCategory) at /build/buildd/project-neon5-phonon4qt5-0.0+git20140618.1+r2823~6f55b90+neon5~ubuntu14.04.1/phonon/audiooutput.cpp:97
#42 0x00007f78f603bb1b in NotifyByAudio::NotifyByAudio (this=0x143bd50, parent=0x7f78f6260330 <(anonymous namespace)::Q_QGS_s_self::innerFunction()::holder>) at /build/buildd/project-neon5-knotifications-0.0+git20140620.0313+neon4~8df45cb~14.04/src/notifybyaudio.cpp:41
#43 0x00007f78f601b2e9 in KNotificationManager::KNotificationManager (this=0x7f78f6260330 <(anonymous namespace)::Q_QGS_s_self::innerFunction()::holder>) at /build/buildd/project-neon5-knotifications-0.0+git20140620.0313+neon4~8df45cb~14.04/src/knotificationmanager.cpp:73
#44 0x00007f78f601d01e in KNotificationManagerSingleton::KNotificationManagerSingleton (this=0x7f78f6260330 <(anonymous namespace)::Q_QGS_s_self::innerFunction()::holder>) at /build/buildd/project-neon5-knotifications-0.0+git20140620.0313+neon4~8df45cb~14.04/src/knotificationmanager.cpp:49
#45 0x00007f78f601b123 in (anonymous namespace)::Q_QGS_s_self::Holder::Holder (this=0x7f78f6260330 <(anonymous namespace)::Q_QGS_s_self::innerFunction()::holder>) at /build/buildd/project-neon5-knotifications-0.0+git20140620.0313+neon4~8df45cb~14.04/src/knotificationmanager.cpp:55
#46 0x00007f78f601b18f in (anonymous namespace)::Q_QGS_s_self::innerFunction () at /build/buildd/project-neon5-knotifications-0.0+git20140620.0313+neon4~8df45cb~14.04/src/knotificationmanager.cpp:55
#47 0x00007f78f601c6b2 in QGlobalStatic<KNotificationManagerSingleton, (* (anonymous namespace)::Q_QGS_s_self::innerFunction), (* & (anonymous namespace)::Q_QGS_s_self::guard)>::operator()(void) (this=0x7f78f6260320 <s_self>) at /opt/project-neon5/include/QtCore/qglobalstatic.h:128
#48 0x00007f78f601b1ce in KNotificationManager::self () at /build/buildd/project-neon5-knotifications-0.0+git20140620.0313+neon4~8df45cb~14.04/src/knotificationmanager.cpp:59
#49 0x00007f78f6019c44 in KNotification::sendEvent (this=0x1458020) at /build/buildd/project-neon5-knotifications-0.0+git20140620.0313+neon4~8df45cb~14.04/src/knotification.cpp:352
#50 0x00007f78f6040de2 in KNotification::qt_static_metacall (_o=0x1458020, _c=QMetaObject::InvokeMetaMethod, _id=13, _a=0x1458160) at /build/buildd/project-neon5-knotifications-0.0+git20140620.0313+neon4~8df45cb~14.04/obj-x86_64-linux-gnu/src/moc_knotification.cpp:129
#51 0x00007f79035bc8f7 in QMetaCallEvent::placeMetaCall (this=0x1457860, object=0x1458020) at kernel/qobject.cpp:487
#52 0x00007f79035bd93c in QObject::event (this=0x1458020, e=0x1457860) at kernel/qobject.cpp:1241
#53 0x00007f79049623fa in QApplicationPrivate::notify_helper (this=0xedc710, receiver=0x1458020, e=0x1457860) at kernel/qapplication.cpp:3522
#54 0x00007f790495fa42 in QApplication::notify (this=0x7fffd990ad30, receiver=0x1458020, e=0x1457860) at kernel/qapplication.cpp:2975
#55 0x00007f790358242a in QCoreApplication::notifyInternal (this=0x7fffd990ad30, receiver=0x1458020, event=0x1457860) at kernel/qcoreapplication.cpp:935
#56 0x00007f7903585fb7 in QCoreApplication::sendEvent (receiver=0x1458020, event=0x1457860) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:237
#57 0x00007f79035836f5 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xedbe40) at kernel/qcoreapplication.cpp:1539
#58 0x00007f790358309a in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1397
#59 0x00007f79035f827c in postEventSourceDispatch (s=0xf0c750) at kernel/qeventdispatcher_glib.cpp:279
#60 0x00007f78ff7f3e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#61 0x00007f78ff7f4048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#62 0x00007f78ff7f40ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#63 0x00007f79035f8a1d in QEventDispatcherGlib::processEvents (this=0xf34e40, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#64 0x00007f78f919ab84 in QPAEventDispatcherGlib::processEvents (this=0xf34e40, flags=...) at eventdispatchers/qeventdispatcher_glib.cpp:123
#65 0x00007f790357f162 in QEventLoop::processEvents (this=0x7fffd9908660, flags=...) at kernel/qeventloop.cpp:136
#66 0x00007f790357f423 in QEventLoop::exec (this=0x7fffd9908660, flags=...) at kernel/qeventloop.cpp:212
#67 0x00007f7904bd8597 in QDialog::exec (this=0x138f290) at dialogs/qdialog.cpp:549
#68 0x00007f790528360a in KMessageBox::createKMessageBox (dialog=0x138f290, buttons=0x13b36e0, icon=..., text=..., strlist=..., ask=..., checkboxReturn=0x7fffd99089f0, options=..., details=..., notifyType=QMessageBox::Warning) at /build/buildd/project-neon5-kwidgetsaddons-0.0+git20140620.0308+neon4~baeafac~14.04/src/kmessagebox.cpp:402
#69 0x00007f7905281f6e in KMessageBox::createKMessageBox (dialog=0x138f290, buttons=0x13b36e0, icon=QMessageBox::Warning, text=..., strlist=..., ask=..., checkboxReturn=0x7fffd99089f0, options=..., details=...) at /build/buildd/project-neon5-kwidgetsaddons-0.0+git20140620.0308+neon4~baeafac~14.04/src/kmessagebox.cpp:206
#70 0x00007f790528520a in KMessageBox::warningYesNoCancelListInternal (dialog=0x138f290, text=..., strlist=..., caption=..., buttonYes_=..., buttonNo_=..., buttonCancel_=..., dontAskAgainName=..., options=...) at /build/buildd/project-neon5-kwidgetsaddons-0.0+git20140620.0308+neon4~baeafac~14.04/src/kmessagebox.cpp:761
#71 0x00007f790528532c in KMessageBox::warningYesNoCancelList (parent=0x117f510, text=..., strlist=..., caption=..., buttonYes=..., buttonNo=..., buttonCancel=..., dontAskAgainName=..., options=...) at /build/buildd/project-neon5-kwidgetsaddons-0.0+git20140620.0308+neon4~baeafac~14.04/src/kmessagebox.cpp:787
#72 0x00007f7905284d6c in KMessageBox::warningYesNoCancel (parent=0x117f510, text=..., caption=..., buttonYes=..., buttonNo=..., buttonCancel=..., dontAskAgainName=..., options=...) at /build/buildd/project-neon5-kwidgetsaddons-0.0+git20140620.0308+neon4~baeafac~14.04/src/kmessagebox.cpp:724
#73 0x00007f7906d28877 in ModuleView::resolveChanges (this=0x117f510, currentProxy=0x12a2ee0) at /build/buildd/project-neon5-systemsettings-0.0+git20140620.0313+neon4~56eee29~14.04/core/ModuleView.cpp:248
#74 0x00007f7906d28d7e in ModuleView::activeModuleChanged (this=0x117f510, current=0x12407d0, previous=0x12a2690) at /build/buildd/project-neon5-systemsettings-0.0+git20140620.0313+neon4~56eee29~14.04/core/ModuleView.cpp:334
#75 0x00007f7906d2cf78 in ModuleView::qt_static_metacall (_o=0x117f510, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0x7fffd9908df0) at /build/buildd/project-neon5-systemsettings-0.0+git20140620.0313+neon4~56eee29~14.04/obj-x86_64-linux-gnu/core/moc_ModuleView.cpp:123
#76 0x00007f79035c4142 in QMetaObject::activate (sender=0x117f930, signalOffset=8, local_signal_index=0, argv=0x7fffd9908df0) at kernel/qobject.cpp:3680
#77 0x00007f79035c393e in QMetaObject::activate (sender=0x117f930, m=0x7f7905534cc0 <KPageWidget::staticMetaObject>, local_signal_index=0, argv=0x7fffd9908df0) at kernel/qobject.cpp:3546
#78 0x00007f79052bf0bb in KPageWidget::currentPageChanged (this=0x117f930, _t1=0x12407d0, _t2=0x12a2690) at /build/buildd/project-neon5-kwidgetsaddons-0.0+git20140620.0308+neon4~baeafac~14.04/obj-x86_64-linux-gnu/src/moc_kpagewidget.cpp:184
#79 0x00007f79052be6b7 in KPageWidgetPrivate::_k_slotCurrentPageChanged (this=0x117f970, current=..., before=...) at /build/buildd/project-neon5-kwidgetsaddons-0.0+git20140620.0308+neon4~baeafac~14.04/src/kpagewidget.cpp:45
#80 0x00007f79052bed9d in KPageWidget::qt_static_metacall (_o=0x117f930, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x7fffd9909030) at /build/buildd/project-neon5-kwidgetsaddons-0.0+git20140620.0308+neon4~baeafac~14.04/obj-x86_64-linux-gnu/src/moc_kpagewidget.cpp:91
#81 0x00007f79035c4142 in QMetaObject::activate (sender=0x117f930, signalOffset=7, local_signal_index=0, argv=0x7fffd9909030) at kernel/qobject.cpp:3680
#82 0x00007f79035c393e in QMetaObject::activate (sender=0x117f930, m=0x7f79055344a0 <KPageView::staticMetaObject>, local_signal_index=0, argv=0x7fffd9909030) at kernel/qobject.cpp:3546
#83 0x00007f79052ba793 in KPageView::currentPageChanged (this=0x117f930, _t1=..., _t2=...) at /build/buildd/project-neon5-kwidgetsaddons-0.0+git20140620.0308+neon4~baeafac~14.04/obj-x86_64-linux-gnu/src/moc_kpageview.cpp:202
#84 0x00007f79052b95f0 in KPageViewPrivate::_k_pageSelected (this=0x117f970, index=..., previous=...) at /build/buildd/project-neon5-kwidgetsaddons-0.0+git20140620.0308+neon4~baeafac~14.04/src/kpageview.cpp:255
#85 0x00007f79052ba4ad in KPageView::qt_static_metacall (_o=0x117f930, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x7fffd99092c0) at /build/buildd/project-neon5-kwidgetsaddons-0.0+git20140620.0308+neon4~baeafac~14.04/obj-x86_64-linux-gnu/src/moc_kpageview.cpp:113
#86 0x00007f79035c4142 in QMetaObject::activate (sender=0x12b6bf0, signalOffset=3, local_signal_index=0, argv=0x7fffd99092c0) at kernel/qobject.cpp:3680
#87 0x00007f79035c393e in QMetaObject::activate (sender=0x12b6bf0, m=0x7f790386c6a0 <QItemSelectionModel::staticMetaObject>, local_signal_index=0, argv=0x7fffd99092c0) at kernel/qobject.cpp:3546
#88 0x00007f790353c3eb in QItemSelectionModel::selectionChanged (this=0x12b6bf0, _t1=..., _t2=...) at .moc/moc_qitemselectionmodel.cpp:279
#89 0x00007f790353bae7 in QItemSelectionModel::emitSelectionChanged (this=0x12b6bf0, newSelection=..., oldSelection=...) at itemmodels/qitemselectionmodel.cpp:1742
#90 0x00007f7903539203 in QItemSelectionModel::select (this=0x12b6bf0, selection=..., command=...) at itemmodels/qitemselectionmodel.cpp:1242
#91 0x00007f79052bdd32 in KDEPrivate::SelectionModel::select (this=0x12b6bf0, selection=..., command=...) at /build/buildd/project-neon5-kwidgetsaddons-0.0+git20140620.0308+neon4~baeafac~14.04/src/kpageview_p.cpp:631
#92 0x00007f7904c57acd in QListView::setSelection (this=0x1184f20, rect=..., command=...) at itemviews/qlistview.cpp:1360
#93 0x00007f7904c33ba8 in QAbstractItemView::mousePressEvent (this=0x1184f20, event=0x7fffd990a150) at itemviews/qabstractitemview.cpp:1735
#94 0x00007f79049aafaa in QWidget::event (this=0x1184f20, event=0x7fffd990a150) at kernel/qwidget.cpp:7961
#95 0x00007f7904afc9af in QFrame::event (this=0x1184f20, e=0x7fffd990a150) at widgets/qframe.cpp:534
#96 0x00007f7904b9871f in QAbstractScrollArea::viewportEvent (this=0x1184f20, e=0x7fffd990a150) at widgets/qabstractscrollarea.cpp:1194
#97 0x00007f7904c336a5 in QAbstractItemView::viewportEvent (this=0x1184f20, event=0x7fffd990a150) at itemviews/qabstractitemview.cpp:1689
#98 0x00007f7904b9997b in QAbstractScrollAreaPrivate::viewportEvent (this=0x12a3b00, event=0x7fffd990a150) at widgets/qabstractscrollarea_p.h:110
#99 0x00007f7904b99a42 in QAbstractScrollAreaFilter::eventFilter (this=0x125cfe0, o=0x12acbb0, e=0x7fffd990a150) at widgets/qabstractscrollarea_p.h:126
#100 0x00007f7903582783 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0xedc710, receiver=0x12acbb0, event=0x7fffd990a150) at kernel/qcoreapplication.cpp:1031
#101 0x00007f79049623d1 in QApplicationPrivate::notify_helper (this=0xedc710, receiver=0x12acbb0, e=0x7fffd990a150) at kernel/qapplication.cpp:3518
#102 0x00007f7904960227 in QApplication::notify (this=0x7fffd990ad30, receiver=0x12acbb0, e=0x7fffd990a150) at kernel/qapplication.cpp:3089
#103 0x00007f790358242a in QCoreApplication::notifyInternal (this=0x7fffd990ad30, receiver=0x12acbb0, event=0x7fffd990a150) at kernel/qcoreapplication.cpp:935
#104 0x00007f790496460b in QCoreApplication::sendSpontaneousEvent (receiver=0x12acbb0, event=0x7fffd990a150) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:240
#105 0x00007f790495eacb in QApplicationPrivate::sendMouseEvent (receiver=0x12acbb0, event=0x7fffd990a150, alienWidget=0x12acbb0, nativeWidget=0xf6b0a0, buttonDown=0x7f79051be750 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2562
#106 0x00007f79049d6e4d in QWidgetWindow::handleMouseEvent (this=0x104cf40, event=0x7fffd990a7e0) at kernel/qwidgetwindow.cpp:507
#107 0x00007f79049d5bf7 in QWidgetWindow::event (this=0x104cf40, event=0x7fffd990a7e0) at kernel/qwidgetwindow.cpp:179
#108 0x00007f79049623fa in QApplicationPrivate::notify_helper (this=0xedc710, receiver=0x104cf40, e=0x7fffd990a7e0) at kernel/qapplication.cpp:3522
#109 0x00007f790495fa42 in QApplication::notify (this=0x7fffd990ad30, receiver=0x104cf40, e=0x7fffd990a7e0) at kernel/qapplication.cpp:2975
#110 0x00007f790358242a in QCoreApplication::notifyInternal (this=0x7fffd990ad30, receiver=0x104cf40, event=0x7fffd990a7e0) at kernel/qcoreapplication.cpp:935
#111 0x00007f79040fd9a3 in QCoreApplication::sendSpontaneousEvent (receiver=0x104cf40, event=0x7fffd990a7e0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:240
#112 0x00007f79040f7168 in QGuiApplicationPrivate::processMouseEvent (e=0x1450d10) at kernel/qguiapplication.cpp:1711
#113 0x00007f79040f6734 in QGuiApplicationPrivate::processWindowSystemEvent (e=0x1450d10) at kernel/qguiapplication.cpp:1512
#114 0x00007f79040e0f21 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:579
#115 0x00007f78f919a972 in userEventSourceDispatch (source=0xf15980) at eventdispatchers/qeventdispatcher_glib.cpp:78
#116 0x00007f78ff7f3e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#117 0x00007f78ff7f4048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#118 0x00007f78ff7f40ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#119 0x00007f79035f8a1d in QEventDispatcherGlib::processEvents (this=0xf34e40, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#120 0x00007f78f919ab84 in QPAEventDispatcherGlib::processEvents (this=0xf34e40, flags=...) at eventdispatchers/qeventdispatcher_glib.cpp:123
#121 0x00007f790357f162 in QEventLoop::processEvents (this=0x7fffd990ac00, flags=...) at kernel/qeventloop.cpp:136
#122 0x00007f790357f423 in QEventLoop::exec (this=0x7fffd990ac00, flags=...) at kernel/qeventloop.cpp:212
#123 0x00007f7903582ae2 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#124 0x00007f79040f64e0 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1446
#125 0x00007f790495f263 in QApplication::exec () at kernel/qapplication.cpp:2767
#126 0x0000000000420f4f in main (argc=1, argv=0x7fffd990ae48) at /build/buildd/project-neon5-systemsettings-0.0+git20140620.0313+neon4~56eee29~14.04/app/main.cpp:55