Application: systemsettings5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.2-201.fc21.x86_64 x86_64
Distribution: "Fedora release 21 (Twenty One)"

-- Information about the crash:
I started Fedora 21 , then I opened System Settings then Aplicaction Style and I tried to change the theme of windows decorator, but suddenly crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: Preferencias del sistema (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fb99f789880 (LWP 2313))]

Thread 4 (Thread 0x7fb987b31700 (LWP 2314)):
#0  0x00007fb99a9e0c8d in poll () at /lib64/libc.so.6
#1  0x00007fb999d17182 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007fb999d18cff in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007fb98a322959 in QXcbEventReader::run() () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#4  0x00007fb99b57a0ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007fb998d1a52a in start_thread () at /lib64/libpthread.so.0
#6  0x00007fb99a9ec22d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fb978cf4700 (LWP 2316)):
#0  0x00007ffdcabfab2d in clock_gettime ()
#1  0x00007fb99a9fa4ad in clock_gettime () at /lib64/libc.so.6
#2  0x00007fb99b62f256 in qt_gettime() () at /lib64/libQt5Core.so.5
#3  0x00007fb99b7bb2c9 in QTimerInfoList::updateCurrentTime() () at /lib64/libQt5Core.so.5
#4  0x00007fb99b7bb835 in QTimerInfoList::timerWait(timespec&) () at /lib64/libQt5Core.so.5
#5  0x00007fb99b7bcbfe in timerSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#6  0x00007fb997f600fd in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#7  0x00007fb997f60a5b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#8  0x00007fb997f60c4c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#9  0x00007fb99b7bd7dc in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#10 0x00007fb99b762f82 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#11 0x00007fb99b5752f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#12 0x00007fb979a2e195 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#13 0x00007fb99b57a0ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#14 0x00007fb998d1a52a in start_thread () at /lib64/libpthread.so.0
#15 0x00007fb99a9ec22d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fb9720a0700 (LWP 2317)):
#0  0x00007ffdcabfab2d in clock_gettime ()
#1  0x00007fb99a9fa4ad in clock_gettime () at /lib64/libc.so.6
#2  0x00007fb99b62f256 in qt_gettime() () at /lib64/libQt5Core.so.5
#3  0x00007fb99b7bb2c9 in QTimerInfoList::updateCurrentTime() () at /lib64/libQt5Core.so.5
#4  0x00007fb99b7bb835 in QTimerInfoList::timerWait(timespec&) () at /lib64/libQt5Core.so.5
#5  0x00007fb99b7bcbfe in timerSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#6  0x00007fb997f600fd in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#7  0x00007fb997f60a5b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#8  0x00007fb997f60c4c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#9  0x00007fb99b7bd7dc in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#10 0x00007fb99b762f82 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#11 0x00007fb99b5752f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#12 0x00007fb979a2e195 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#13 0x00007fb99b57a0ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#14 0x00007fb998d1a52a in start_thread () at /lib64/libpthread.so.0
#15 0x00007fb99a9ec22d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fb99f789880 (LWP 2313)):
[KCrash Handler]
#5  0x000000000000002c in  ()
#6  0x00007fb978f076a1 in KDecoration2::Decoration::update(QRect const&) () at /lib64/libkdecorations2.so.5
#7  0x00007fb978f07708 in KDecoration2::Decoration::update() () at /lib64/libkdecorations2.so.5
#8  0x00007fb972361650 in Breeze::Decoration::setOpacity(double) () at /usr/lib64/qt5/plugins/org.kde.kdecoration2/breezedecoration.so
#9  0x00007fb972384268 in Breeze::Decoration::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib64/qt5/plugins/org.kde.kdecoration2/breezedecoration.so
#10 0x00007fb99b55afda in QPropertyAnimation::updateCurrentValue(QVariant const&) () at /lib64/libQt5Core.so.5
#11 0x00007fb99b556968 in QVariantAnimationPrivate::setCurrentValueForProgress(double) () at /lib64/libQt5Core.so.5
#12 0x00007fb99b55773b in QVariantAnimation::updateCurrentTime(int) () at /lib64/libQt5Core.so.5
#13 0x00007fb99b55368f in QAbstractAnimation::setCurrentTime(int) () at /lib64/libQt5Core.so.5
#14 0x00007fb99b553976 in QUnifiedTimer::updateAnimationTimers(long long) () at /lib64/libQt5Core.so.5
#15 0x00007fb979a6847e in QAbstractAnimationJob::setState(QAbstractAnimationJob::State) () at /lib64/libQt5Qml.so.5
#16 0x00007fb97955635c in QQuickListViewPrivate::updateHighlight() () at /lib64/libQt5Quick.so.5
#17 0x00007fb9795af714 in QQuickItemViewPrivate::itemGeometryChanged(QQuickItem*, QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#18 0x00007fb97955f323 in QQuickListViewPrivate::itemGeometryChanged(QQuickItem*, QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#19 0x00007fb9794be343 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#20 0x00007fb9794c271e in QQuickItem::setWidth(double) () at /lib64/libQt5Quick.so.5
#21 0x00007fb9794cef96 in QQuickItem::qt_metacall(QMetaObject::Call, int, void**) () at /lib64/libQt5Quick.so.5
#22 0x00007fb9799a8a27 in QQmlPropertyPrivate::writeBinding(QObject*, QQmlPropertyData const&, QQmlContextData*, QQmlJavaScriptExpression*, QV4::ValueRef, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /lib64/libQt5Qml.so.5
#23 0x00007fb979a1c7af in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () at /lib64/libQt5Qml.so.5
#24 0x00007fb979a1cf0e in QQmlBinding::expressionChanged(QQmlJavaScriptExpression*) () at /lib64/libQt5Qml.so.5
#25 0x00007fb9799f6a57 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /lib64/libQt5Qml.so.5
#26 0x00007fb9799f6a1e in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /lib64/libQt5Qml.so.5
#27 0x00007fb97999407c in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /lib64/libQt5Qml.so.5
#28 0x00007fb99b7952a1 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#29 0x00007fb9794be3a9 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#30 0x00007fb9795554dc in QQuickFlickable::geometryChanged(QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#31 0x00007fb9794c31d0 in QQuickItem::setSize(QSizeF const&) () at /lib64/libQt5Quick.so.5
#32 0x00007fb9794b8fea in QQuickAnchorsPrivate::fillChanged() () at /lib64/libQt5Quick.so.5
#33 0x00007fb9794baf02 in QQuickAnchorsPrivate::itemGeometryChanged(QQuickItem*, QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#34 0x00007fb9794be343 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#35 0x00007fb9794c31d0 in QQuickItem::setSize(QSizeF const&) () at /lib64/libQt5Quick.so.5
#36 0x00007fb9794b8fea in QQuickAnchorsPrivate::fillChanged() () at /lib64/libQt5Quick.so.5
#37 0x00007fb9794baf02 in QQuickAnchorsPrivate::itemGeometryChanged(QQuickItem*, QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#38 0x00007fb9794be343 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#39 0x00007fb9794c31d0 in QQuickItem::setSize(QSizeF const&) () at /lib64/libQt5Quick.so.5
#40 0x00007fb9794b8fea in QQuickAnchorsPrivate::fillChanged() () at /lib64/libQt5Quick.so.5
#41 0x00007fb9794baf02 in QQuickAnchorsPrivate::itemGeometryChanged(QQuickItem*, QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#42 0x00007fb9794be343 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#43 0x00007fb9794c31d0 in QQuickItem::setSize(QSizeF const&) () at /lib64/libQt5Quick.so.5
#44 0x00007fb9794b8fea in QQuickAnchorsPrivate::fillChanged() () at /lib64/libQt5Quick.so.5
#45 0x00007fb9794baf02 in QQuickAnchorsPrivate::itemGeometryChanged(QQuickItem*, QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#46 0x00007fb9794be343 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#47 0x00007fb9794c31d0 in QQuickItem::setSize(QSizeF const&) () at /lib64/libQt5Quick.so.5
#48 0x00007fb9794b8fea in QQuickAnchorsPrivate::fillChanged() () at /lib64/libQt5Quick.so.5
#49 0x00007fb9794baf02 in QQuickAnchorsPrivate::itemGeometryChanged(QQuickItem*, QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#50 0x00007fb9794be343 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#51 0x00007fb9794c31d0 in QQuickItem::setSize(QSizeF const&) () at /lib64/libQt5Quick.so.5
#52 0x00007fb9783417a8 in QQuickGridLayoutItem::setGeometry(QRectF const&) () at /usr/lib64/qt5/qml/QtQuick/Layouts/libqquicklayoutsplugin.so
#53 0x00007fb99c2ec7d6 in QGridLayoutEngine::setGeometries(QRectF const&, QAbstractLayoutStyleInfo const*) () at /lib64/libQt5Gui.so.5
#54 0x00007fb978340f1f in QQuickGridLayoutBase::rearrange(QSizeF const&) () at /usr/lib64/qt5/qml/QtQuick/Layouts/libqquicklayoutsplugin.so
#55 0x00007fb9783414d7 in QQuickGridLayoutBase::geometryChanged(QRectF const&, QRectF const&) () at /usr/lib64/qt5/qml/QtQuick/Layouts/libqquicklayoutsplugin.so
#56 0x00007fb9794c31d0 in QQuickItem::setSize(QSizeF const&) () at /lib64/libQt5Quick.so.5
#57 0x00007fb9794b8fea in QQuickAnchorsPrivate::fillChanged() () at /lib64/libQt5Quick.so.5
#58 0x00007fb9794baf02 in QQuickAnchorsPrivate::itemGeometryChanged(QQuickItem*, QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#59 0x00007fb9794be343 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () at /lib64/libQt5Quick.so.5
#60 0x00007fb9794c2a6e in QQuickItem::setHeight(double) () at /lib64/libQt5Quick.so.5
#61 0x00007fb979587d9f in QQuickViewPrivate::updateSize() () at /lib64/libQt5Quick.so.5
#62 0x00007fb979589422 in QQuickView::resizeEvent(QResizeEvent*) () at /lib64/libQt5Quick.so.5
#63 0x00007fb99c01cf55 in QWindow::event(QEvent*) () at /lib64/libQt5Gui.so.5
#64 0x00007fb9794e1ee3 in QQuickWindow::event(QEvent*) () at /lib64/libQt5Quick.so.5
#65 0x00007fb99c5cf95c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#66 0x00007fb99c5d4da0 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#67 0x00007fb99b7656eb in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#68 0x00007fb99c015861 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /lib64/libQt5Gui.so.5
#69 0x00007fb99c0164dd in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /lib64/libQt5Gui.so.5
#70 0x00007fb99bffb28f in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Gui.so.5
#71 0x00007fb98a34cc30 in userEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#72 0x00007fb997f607fb in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#73 0x00007fb997f60b98 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#74 0x00007fb997f60c4c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#75 0x00007fb99b7bd7c7 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#76 0x00007fb99b762f82 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#77 0x00007fb99b76aa2c in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#78 0x000000000040e9fc in main ()

Reported using DrKonqi