Application: systemsettings5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-25-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
Changed window decoration setting in KDE system settings application and it closed unexpectedly. This is on an Ubuntu installation with the kubuntu-desktop package installed.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f38637e5780 (LWP 2474))]

Thread 7 (Thread 0x7f3852f2d700 (LWP 2475)):
#0  0x00007f385ff548dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f385e26eb72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f385e27064f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f3855478099 in QXcbEventReader::run (this=0x171c550) at qxcbconnection.cpp:1105
#4  0x00007f38605d5b0e in QThreadPrivate::start (arg=0x171c550) at thread/qthread_unix.cpp:337
#5  0x00007f385d1886aa in start_thread (arg=0x7f3852f2d700) at pthread_create.c:333
#6  0x00007f385ff5feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f3848122700 (LWP 2477)):
#0  0x00007f385ff548dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f385cc69ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f385cc6a242 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f38509adaf6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f385cc90955 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f385d1886aa in start_thread (arg=0x7f3848122700) at pthread_create.c:333
#6  0x00007f385ff5feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f3847921700 (LWP 2478)):
#0  0x00007f385ccae789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f385cc69641 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f385cc69e37 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f385cc69fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f385cc6a009 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f385cc90955 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f385d1886aa in start_thread (arg=0x7f3847921700) at pthread_create.c:333
#7  0x00007f385ff5feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f382735a700 (LWP 2498)):
#0  0x00007f385ccae789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f385cc69409 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f385cc69de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f385cc69fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f386086cc6c in QEventDispatcherGlib::processEvents (this=0x7f38201efb80, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f38608113e2 in QEventLoop::exec (this=this@entry=0x7f3827359e20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f38605d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f385f59bf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f38605d5b0e in QThreadPrivate::start (arg=0x3873670) at thread/qthread_unix.cpp:337
#9  0x00007f385d1886aa in start_thread (arg=0x7f382735a700) at pthread_create.c:333
#10 0x00007f385ff5feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f3847120700 (LWP 2499)):
#0  0x00007f385cc69690 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f385cc69e37 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f385cc69fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f386086cc6c in QEventDispatcherGlib::processEvents (this=0x7f383c07df90, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f38608113e2 in QEventLoop::exec (this=this@entry=0x7f384711fe20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f38605d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f385f59bf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f38605d5b0e in QThreadPrivate::start (arg=0x1f35360) at thread/qthread_unix.cpp:337
#8  0x00007f385d1886aa in start_thread (arg=0x7f3847120700) at pthread_create.c:333
#9  0x00007f385ff5feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f381e582700 (LWP 2506)):
#0  0x00007f385ccae7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f385cc69d6d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f385cc69fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f386086cc6c in QEventDispatcherGlib::processEvents (this=0x7f38180008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f38608113e2 in QEventLoop::exec (this=this@entry=0x7f381e581e40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f38605d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f38605d5b0e in QThreadPrivate::start (arg=0x31f7750) at thread/qthread_unix.cpp:337
#7  0x00007f385d1886aa in start_thread (arg=0x7f381e582700) at pthread_create.c:333
#8  0x00007f385ff5feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f38637e5780 (LWP 2474)):
[KCrash Handler]
#6  0x00007f385eccf9ac in ?? () from /usr/lib/x86_64-linux-gnu/libKF5QuickAddons.so.5
#7  0x00007f385eccfe26 in ManagedTextureNode::~ManagedTextureNode() () from /usr/lib/x86_64-linux-gnu/libKF5QuickAddons.so.5
#8  0x00007f385f016c13 in QSGNode::destroy() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f385f016c47 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f385f016c79 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f385f016c13 in QSGNode::destroy() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f385f016c47 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007f385f016df9 in QSGOpacityNode::~QSGOpacityNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f385f016c13 in QSGNode::destroy() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007f385f016c47 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f385f016db9 in QSGTransformNode::~QSGTransformNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007f385f0743c4 in QQuickWindowPrivate::cleanupNodes() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007f385f07671d in QQuickWindowPrivate::cleanupNodesOnShutdown() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007f385f044aac in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007f385f076463 in QQuickWindow::~QQuickWindow() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007f385f125a49 in QQuickView::~QQuickView() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f386165edd5 in QWindowContainer::~QWindowContainer (this=0x1ed6f40, __in_chrg=<optimized out>) at kernel/qwindowcontainer.cpp:219
#23 0x00007f386165edf9 in QWindowContainer::~QWindowContainer (this=0x1ed6f40, __in_chrg=<optimized out>) at kernel/qwindowcontainer.cpp:220
#24 0x00007f386084318c in QObjectPrivate::deleteChildren (this=this@entry=0x32e8a30) at kernel/qobject.cpp:1950
#25 0x00007f386163f57a in QWidget::~QWidget (this=0x37a9620, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#26 0x00007f386163f7e9 in QWidget::~QWidget (this=0x37a9620, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1662
#27 0x00007f386084318c in QObjectPrivate::deleteChildren (this=this@entry=0x36963e0) at kernel/qobject.cpp:1950
#28 0x00007f386163f57a in QWidget::~QWidget (this=0x37cc510, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#29 0x00007f382694f4fe in ~ConfigurationForm (this=0x37cc510, __in_chrg=<optimized out>) at ../../../kcmkwin/kwindecoration/kcm.h:41
#30 KDecoration2::Configuration::ConfigurationForm::~ConfigurationForm (this=0x37cc510, __in_chrg=<optimized out>) at ../../../kcmkwin/kwindecoration/kcm.h:41
#31 0x00007f386084318c in QObjectPrivate::deleteChildren (this=this@entry=0x3f9ee00) at kernel/qobject.cpp:1950
#32 0x00007f386163f57a in QWidget::~QWidget (this=0x404c450, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#33 0x00007f38620e31c7 in KCModule::~KCModule (this=0x404c450, __in_chrg=<optimized out>) at ../../src/kcmodule.cpp:177
#34 0x00007f382694a1a1 in ~ConfigurationModule (this=0x404c450, __in_chrg=<optimized out>) at ../../../kcmkwin/kwindecoration/kcm.h:47
#35 KDecoration2::Configuration::ConfigurationModule::~ConfigurationModule (this=0x404c450, __in_chrg=<optimized out>) at ../../../kcmkwin/kwindecoration/kcm.h:47
#36 0x00007f3863366e34 in KCModuleProxy::deleteClient (this=this@entry=0x1bb0920) at ../../src/kcmoduleproxy.cpp:217
#37 0x00007f3863366f36 in KCModuleProxy::~KCModuleProxy (this=0x1bb0920, __in_chrg=<optimized out>) at ../../src/kcmoduleproxy.cpp:208
#38 0x00007f3863367049 in KCModuleProxy::~KCModuleProxy (this=0x1bb0920, __in_chrg=<optimized out>) at ../../src/kcmoduleproxy.cpp:212
#39 0x00007f386084318c in QObjectPrivate::deleteChildren (this=this@entry=0x1e5d750) at kernel/qobject.cpp:1950
#40 0x00007f386163f57a in QWidget::~QWidget (this=0x1bf0690, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#41 0x00007f386163f7e9 in QWidget::~QWidget (this=0x1bf0690, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1662
#42 0x00007f386084318c in QObjectPrivate::deleteChildren (this=this@entry=0x36ce790) at kernel/qobject.cpp:1950
#43 0x00007f386163f57a in QWidget::~QWidget (this=0x3776050, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#44 0x00007f38617ce059 in QScrollArea::~QScrollArea (this=0x3776050, __in_chrg=<optimized out>) at widgets/qscrollarea.cpp:168
#45 0x00007f3861c29213 in ~Private (this=0x4200690, __in_chrg=<optimized out>) at ../../src/kpagewidgetmodel.cpp:40
#46 KPageWidgetItem::~KPageWidgetItem (this=0x1ede1a0, __in_chrg=<optimized out>) at ../../src/kpagewidgetmodel.cpp:86
#47 0x00007f3861c29bf4 in ~KPageWidgetItem (this=0x1ede1a0, __in_chrg=<optimized out>) at ../../src/kpagewidgetmodel.cpp:87
#48 PageItem::~PageItem (this=0x3328f80, __in_chrg=<optimized out>) at ../../src/kpagewidgetmodel.cpp:176
#49 0x00007f3861c2ae08 in KPageWidgetModel::removePage (this=0x1b302a0, item=<optimized out>) at ../../src/kpagewidgetmodel.cpp:537
#50 0x00007f3861c28d67 in KPageWidget::removePage (this=<optimized out>, item=<optimized out>) at ../../src/kpagewidget.cpp:120
#51 0x00007f386359a875 in ModuleView::closeModules (this=0x1b32bf0) at ../../core/ModuleView.cpp:275
#52 0x00007f38343aa5ce in IconMode::backToOverview (this=0x1b33340) at ../../icons/IconMode.cpp:156
#53 0x00007f38608449c9 in QMetaObject::activate (sender=sender@entry=0x1b2f420, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffeb13f3800) at kernel/qobject.cpp:3716
#54 0x00007f3860845057 in QMetaObject::activate (sender=sender@entry=0x1b2f420, m=m@entry=0x7f3861b16b40 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffeb13f3800) at kernel/qobject.cpp:3582
#55 0x00007f38615f5722 in QAction::triggered (this=this@entry=0x1b2f420, _t1=false) at .moc/moc_qaction.cpp:360
#56 0x00007f38615f7e28 in QAction::activate (this=0x1b2f420, event=<optimized out>) at kernel/qaction.cpp:1167
#57 0x00007f38616fc23d in QAbstractButtonPrivate::click (this=0x1b86890) at widgets/qabstractbutton.cpp:516
#58 0x00007f38616fc454 in QAbstractButton::mouseReleaseEvent (this=0x1b86780, e=0x7ffeb13f3d00) at widgets/qabstractbutton.cpp:1132
#59 0x00007f38617c823a in QToolButton::mouseReleaseEvent (this=<optimized out>, e=<optimized out>) at widgets/qtoolbutton.cpp:609
#60 0x00007f38616431e8 in QWidget::event (this=0x1b86780, event=0x7ffeb13f3d00) at kernel/qwidget.cpp:9022
#61 0x00007f38616fd773 in QAbstractButton::event (this=this@entry=0x1b86780, e=e@entry=0x7ffeb13f3d00) at widgets/qabstractbutton.cpp:1089
#62 0x00007f38617c8319 in QToolButton::event (this=0x1b86780, event=0x7ffeb13f3d00) at widgets/qtoolbutton.cpp:965
#63 0x00007f38615ffb2c in QApplicationPrivate::notify_helper (this=0x1705b10, receiver=0x1b86780, e=0x7ffeb13f3d00) at kernel/qapplication.cpp:3720
#64 0x00007f38616058eb in QApplication::notify (this=0x7ffeb13f3a40, receiver=0x7ffeb13f3a60, e=0x7ffeb13f3d00) at kernel/qapplication.cpp:3280
#65 0x00007f3860813c2b in QCoreApplication::notifyInternal (this=0x7ffeb13f45d0, receiver=receiver@entry=0x1b86780, event=event@entry=0x7ffeb13f3d00) at kernel/qcoreapplication.cpp:935
#66 0x00007f38616043da in sendSpontaneousEvent (event=0x7ffeb13f3d00, receiver=0x1b86780) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#67 QApplicationPrivate::sendMouseEvent (receiver=0x1b86780, event=0x7ffeb13f3d00, alienWidget=0x1b86780, nativeWidget=0x1943e40, buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2751
#68 0x00007f386165bcc0 in QWidgetWindow::handleMouseEvent (this=0x175f0c0, event=0x7ffeb13f4110) at kernel/qwidgetwindow.cpp:543
#69 0x00007f386165de33 in QWidgetWindow::event (this=0x175f0c0, event=0x7ffeb13f4110) at kernel/qwidgetwindow.cpp:210
#70 0x00007f38615ffb2c in QApplicationPrivate::notify_helper (this=0x1705b10, receiver=0x175f0c0, e=0x7ffeb13f4110) at kernel/qapplication.cpp:3720
#71 0x00007f3861605000 in QApplication::notify (this=0x7ffeb13f45d0, receiver=0x175f0c0, e=0x7ffeb13f4110) at kernel/qapplication.cpp:3503
#72 0x00007f3860813c2b in QCoreApplication::notifyInternal (this=0x7ffeb13f45d0, receiver=0x175f0c0, event=0x7ffeb13f4110) at kernel/qcoreapplication.cpp:935
#73 0x00007f3861042f82 in sendSpontaneousEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#74 QGuiApplicationPrivate::processMouseEvent (e=0x3337a30) at kernel/qguiapplication.cpp:1774
#75 0x00007f3861044b45 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x3337a30) at kernel/qguiapplication.cpp:1576
#76 0x00007f386102934f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#77 0x00007f38554a2590 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#78 0x00007f385cc69c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#79 0x00007f385cc69f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#80 0x00007f385cc69fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#81 0x00007f386086cc57 in QEventDispatcherGlib::processEvents (this=0x1701e30, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#82 0x00007f38608113e2 in QEventLoop::exec (this=this@entry=0x7ffeb13f44b0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#83 0x00007f386081902c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#84 0x00007f386103a31c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#85 0x00007f38615fb7a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#86 0x000000000040eebc in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:54

Reported using DrKonqi