Bug 346598

Application: systemsettings5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-15-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
I restarted system settings after the first crash, and selected a new icon set.  When closing systemsettings, it crashed.

-- 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 0x7f9782298780 (LWP 13248))]

Thread 4 (Thread 0x7f9771a17700 (LWP 13249)):
#0  0x00007f977ea028dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f977cd1cb72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f977cd1e64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f9773f62099 in QXcbEventReader::run (this=0x83d410) at qxcbconnection.cpp:1105
#4  0x00007f977f083b0e in QThreadPrivate::start (arg=0x83d410) at thread/qthread_unix.cpp:337
#5  0x00007f977bc366aa in start_thread (arg=0x7f9771a17700) at pthread_create.c:333
#6  0x00007f977ea0deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f9761882700 (LWP 13254)):
#0  0x00007f977b75c7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f977b717852 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f977b717e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f977b717fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f977f31ac6c in QEventDispatcherGlib::processEvents (this=0x7f975c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f977f2bf3e2 in QEventLoop::exec (this=this@entry=0x7f9761881e20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f977f07eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f977e049f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f977f083b0e in QThreadPrivate::start (arg=0x144b4e0) at thread/qthread_unix.cpp:337
#9  0x00007f977bc366aa in start_thread (arg=0x7f9761882700) at pthread_create.c:333
#10 0x00007f977ea0deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f975a423700 (LWP 13255)):
#0  0x00007f977b717411 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f977b717de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f977b717fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f977f31ac6c in QEventDispatcherGlib::processEvents (this=0x7f97540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f977f2bf3e2 in QEventLoop::exec (this=this@entry=0x7f975a422e20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f977f07eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f977e049f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f977f083b0e in QThreadPrivate::start (arg=0x180afd0) at thread/qthread_unix.cpp:337
#8  0x00007f977bc366aa in start_thread (arg=0x7f975a423700) at pthread_create.c:333
#9  0x00007f977ea0deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f9782298780 (LWP 13248)):
[KCrash Handler]
#6  0x00007f977d77d9b0 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5QuickAddons.so.5
#7  0x00007f977d77de26 in ManagedTextureNode::~ManagedTextureNode() () from /usr/lib/x86_64-linux-gnu/libKF5QuickAddons.so.5
#8  0x00007f977dac4c13 in QSGNode::destroy() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f977dac4c47 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f977dac4c79 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f977dac4c13 in QSGNode::destroy() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f977dac4c47 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007f977dac4df9 in QSGOpacityNode::~QSGOpacityNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f977dac4c13 in QSGNode::destroy() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007f977dac4c47 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f977dac4db9 in QSGTransformNode::~QSGTransformNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007f977db223c4 in QQuickWindowPrivate::cleanupNodes() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007f977db2471d in QQuickWindowPrivate::cleanupNodesOnShutdown() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007f977daf2aac in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007f977db24463 in QQuickWindow::~QQuickWindow() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007f977dbd3a49 in QQuickView::~QQuickView() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f978010cdd5 in QWindowContainer::~QWindowContainer (this=0x1637f30, __in_chrg=<optimized out>) at kernel/qwindowcontainer.cpp:219
#23 0x00007f978010cdf9 in QWindowContainer::~QWindowContainer (this=0x1637f30, __in_chrg=<optimized out>) at kernel/qwindowcontainer.cpp:220
#24 0x00007f977f2f118c in QObjectPrivate::deleteChildren (this=this@entry=0xb422c0) at kernel/qobject.cpp:1950
#25 0x00007f97800ed57a in QWidget::~QWidget (this=0xb42280, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#26 0x00007f97800ed7e9 in QWidget::~QWidget (this=0xb42280, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1662
#27 0x00007f977f2f118c in QObjectPrivate::deleteChildren (this=this@entry=0x142d000) at kernel/qobject.cpp:1950
#28 0x00007f97800ed57a in QWidget::~QWidget (this=0xb439c0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#29 0x00007f9761eef4fe in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_kwindecoration.so
#30 0x00007f977f2f118c in QObjectPrivate::deleteChildren (this=this@entry=0x1435c90) at kernel/qobject.cpp:1950
#31 0x00007f97800ed57a in QWidget::~QWidget (this=0xb43380, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#32 0x00007f9780b911c7 in KCModule::~KCModule() () from /usr/lib/x86_64-linux-gnu/libKF5ConfigWidgets.so.5
#33 0x00007f9761eea1a1 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_kwindecoration.so
#34 0x00007f9781e14e34 in KCModuleProxy::deleteClient() () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#35 0x00007f9781e14f36 in KCModuleProxy::~KCModuleProxy() () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#36 0x00007f9781e15049 in KCModuleProxy::~KCModuleProxy() () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#37 0x00007f977f2f118c in QObjectPrivate::deleteChildren (this=this@entry=0xaedf70) at kernel/qobject.cpp:1950
#38 0x00007f97800ed57a in QWidget::~QWidget (this=0xaebd80, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#39 0x00007f97800ed7e9 in QWidget::~QWidget (this=0xaebd80, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1662
#40 0x00007f977f2f118c in QObjectPrivate::deleteChildren (this=this@entry=0xaedcd0) at kernel/qobject.cpp:1950
#41 0x00007f97800ed57a in QWidget::~QWidget (this=0xadfe60, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#42 0x00007f978027c059 in QScrollArea::~QScrollArea (this=0xadfe60, __in_chrg=<optimized out>) at widgets/qscrollarea.cpp:168
#43 0x00007f97806d7213 in KPageWidgetItem::~KPageWidgetItem() () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#44 0x00007f97806d7bf4 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#45 0x00007f97806d8e08 in KPageWidgetModel::removePage(KPageWidgetItem*) () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#46 0x00007f9782048875 in ModuleView::closeModules (this=0xa07920) at ../../core/ModuleView.cpp:275
#47 0x00007f9764ead5ce in IconMode::backToOverview (this=0x9efa80) at ../../icons/IconMode.cpp:156
#48 0x00007f977f2f29c9 in QMetaObject::activate (sender=sender@entry=0x9d0870, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffe0d4be450) at kernel/qobject.cpp:3716
#49 0x00007f977f2f3057 in QMetaObject::activate (sender=sender@entry=0x9d0870, m=m@entry=0x7f97805c4b40 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffe0d4be450) at kernel/qobject.cpp:3582
#50 0x00007f97800a3722 in QAction::triggered (this=this@entry=0x9d0870, _t1=false) at .moc/moc_qaction.cpp:360
#51 0x00007f97800a5e28 in QAction::activate (this=0x9d0870, event=<optimized out>) at kernel/qaction.cpp:1167
#52 0x00007f97801aa23d in QAbstractButtonPrivate::click (this=0xa6bd30) at widgets/qabstractbutton.cpp:516
#53 0x00007f97801aa454 in QAbstractButton::mouseReleaseEvent (this=0xa6c6f0, e=0x7ffe0d4be950) at widgets/qabstractbutton.cpp:1132
#54 0x00007f978027623a in QToolButton::mouseReleaseEvent (this=<optimized out>, e=<optimized out>) at widgets/qtoolbutton.cpp:609
#55 0x00007f97800f11e8 in QWidget::event (this=0xa6c6f0, event=0x7ffe0d4be950) at kernel/qwidget.cpp:9022
#56 0x00007f97801ab773 in QAbstractButton::event (this=this@entry=0xa6c6f0, e=e@entry=0x7ffe0d4be950) at widgets/qabstractbutton.cpp:1089
#57 0x00007f9780276319 in QToolButton::event (this=0xa6c6f0, event=0x7ffe0d4be950) at widgets/qtoolbutton.cpp:965
#58 0x00007f97800adb2c in QApplicationPrivate::notify_helper (this=0x826b10, receiver=0xa6c6f0, e=0x7ffe0d4be950) at kernel/qapplication.cpp:3720
#59 0x00007f97800b38eb in QApplication::notify (this=0x7ffe0d4be690, receiver=0x7ffe0d4be6b0, e=0x7ffe0d4be950) at kernel/qapplication.cpp:3280
#60 0x00007f977f2c1c2b in QCoreApplication::notifyInternal (this=0x7ffe0d4bf220, receiver=receiver@entry=0xa6c6f0, event=event@entry=0x7ffe0d4be950) at kernel/qcoreapplication.cpp:935
#61 0x00007f97800b23da in sendSpontaneousEvent (event=0x7ffe0d4be950, receiver=0xa6c6f0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#62 QApplicationPrivate::sendMouseEvent (receiver=0xa6c6f0, event=0x7ffe0d4be950, alienWidget=0xa6c6f0, nativeWidget=0x943c50, buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2751
#63 0x00007f9780109cc0 in QWidgetWindow::handleMouseEvent (this=0x17e9750, event=0x7ffe0d4bed60) at kernel/qwidgetwindow.cpp:543
#64 0x00007f978010be33 in QWidgetWindow::event (this=0x17e9750, event=0x7ffe0d4bed60) at kernel/qwidgetwindow.cpp:210
#65 0x00007f97800adb2c in QApplicationPrivate::notify_helper (this=0x826b10, receiver=0x17e9750, e=0x7ffe0d4bed60) at kernel/qapplication.cpp:3720
#66 0x00007f97800b3000 in QApplication::notify (this=0x7ffe0d4bf220, receiver=0x17e9750, e=0x7ffe0d4bed60) at kernel/qapplication.cpp:3503
#67 0x00007f977f2c1c2b in QCoreApplication::notifyInternal (this=0x7ffe0d4bf220, receiver=0x17e9750, event=0x7ffe0d4bed60) at kernel/qcoreapplication.cpp:935
#68 0x00007f977faf0f82 in sendSpontaneousEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#69 QGuiApplicationPrivate::processMouseEvent (e=0x416c230) at kernel/qguiapplication.cpp:1774
#70 0x00007f977faf2b45 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x416c230) at kernel/qguiapplication.cpp:1576
#71 0x00007f977fad734f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#72 0x00007f9773f8c590 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#73 0x00007f977b717c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#74 0x00007f977b717f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#75 0x00007f977b717fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#76 0x00007f977f31ac57 in QEventDispatcherGlib::processEvents (this=0x86fb90, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#77 0x00007f977f2bf3e2 in QEventLoop::exec (this=this@entry=0x7ffe0d4bf100, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#78 0x00007f977f2c702c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#79 0x00007f977fae831c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#80 0x00007f97800a97a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#81 0x000000000040eebc in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:54

Reported using DrKonqi