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:
- What I was doing when the application crashed:
attempting to view the application style section of the control panel

- Custom settings of the application:
installed all of the yosemite look-alike themes from the theme search window

The crash can be reproduced every time.

-- 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 0x7f24e1983780 (LWP 12649))]

Thread 5 (Thread 0x7f24d0f8f700 (LWP 12650)):
#0  0x00007f24de09b8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f24dc391b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f24dc39364f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f24d3513099 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#4  0x00007f24de723b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f24db28f6aa in start_thread (arg=0x7f24d0f8f700) at pthread_create.c:333
#6  0x00007f24de0a6eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f24c1acf700 (LWP 12651)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f24c4b254fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f24c4b24c87 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f24db28f6aa in start_thread (arg=0x7f24c1acf700) at pthread_create.c:333
#4  0x00007f24de0a6eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f24bd1af700 (LWP 12659)):
#0  0x00007f24dadae7b0 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f24dad698b9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f24dad69e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f24dad69fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f24de9bac6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f24de95f3e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f24de71eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f24dd6d1f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f24de723b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f24db28f6aa in start_thread (arg=0x7f24bd1af700) at pthread_create.c:333
#10 0x00007f24de0a6eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f24b5ca7700 (LWP 12660)):
#0  0x00007f24dadae789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f24dad692d7 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f24dad69de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f24dad69fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f24de9bac6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f24de95f3e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f24de71eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f24dd6d1f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f24de723b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f24db28f6aa in start_thread (arg=0x7f24b5ca7700) at pthread_create.c:333
#10 0x00007f24de0a6eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f24e1983780 (LWP 12649)):
[KCrash Handler]
#6  0x0000000000000030 in ?? ()
#7  0x00007f24bd3c36e1 in KDecoration2::Decoration::update(QRect const&) () from /usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#8  0x00007f24bd3c375b in KDecoration2::Decoration::update() () from /usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#9  0x00007f24b5f86370 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kdecoration2/breezedecoration.so
#10 0x00007f24b5fa67a8 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kdecoration2/breezedecoration.so
#11 0x00007f24de7045ca in QPropertyAnimation::updateCurrentValue(QVariant const&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f24de6fff48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f24de700d1b in QVariantAnimation::updateCurrentTime(int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f24de6fcbaf in QAbstractAnimation::setCurrentTime(int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f24de6fce96 in QUnifiedTimer::updateAnimationTimers(long long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f24dd70ca5e in QAbstractAnimationJob::setState(QAbstractAnimationJob::State) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007f24dd226dac in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007f24dd281244 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007f24dd22fea3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007f24dd18ddd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007f24dd1921ae in QQuickItem::setWidth(double) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f24dd19ebe6 in QQuickItem::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007f24dd64bba7 in QQmlPropertyPrivate::writeBinding(QObject*, QQmlPropertyData const&, QQmlContextData*, QQmlJavaScriptExpression*, QV4::ValueRef, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#24 0x00007f24dd6c051c in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#25 0x00007f24dd6c0c7e in QQmlBinding::expressionChanged(QQmlJavaScriptExpression*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#26 0x00007f24dd69a497 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#27 0x00007f24dd69a45e in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#28 0x00007f24dd63710c in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#29 0x00007f24de992141 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f24dd18de39 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#31 0x00007f24dd225edc in QQuickFlickable::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#32 0x00007f24dd192c60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#33 0x00007f24dd188a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#34 0x00007f24dd18a9a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#35 0x00007f24dd18ddd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#36 0x00007f24dd192c60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#37 0x00007f24dd188a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#38 0x00007f24dd18a9a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#39 0x00007f24dd18ddd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#40 0x00007f24dd192c60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#41 0x00007f24dd188a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#42 0x00007f24dd18a9a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#43 0x00007f24dd18ddd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#44 0x00007f24dd192c60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#45 0x00007f24dd188a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#46 0x00007f24dd18a9a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#47 0x00007f24dd18ddd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#48 0x00007f24dd192c60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#49 0x00007f24dd188a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#50 0x00007f24dd18a9a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#51 0x00007f24dd18ddd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#52 0x00007f24dd192c60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#53 0x00007f24b7fee798 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Layouts/libqquicklayoutsplugin.so
#54 0x00007f24df478186 in QGridLayoutEngine::setGeometries(QRectF const&, QAbstractLayoutStyleInfo const*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#55 0x00007f24b7fedf0f in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Layouts/libqquicklayoutsplugin.so
#56 0x00007f24b7fee4c7 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Layouts/libqquicklayoutsplugin.so
#57 0x00007f24dd192c60 in QQuickItem::setSize(QSizeF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#58 0x00007f24dd188a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#59 0x00007f24dd18a9a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#60 0x00007f24dd18ddd3 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#61 0x00007f24dd1924fe in QQuickItem::setHeight(double) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#62 0x00007f24dd258d8f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#63 0x00007f24dd25a442 in QQuickView::resizeEvent(QResizeEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#64 0x00007f24df1a47b5 in QWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#65 0x00007f24dd1b1dd3 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#66 0x00007f24df75bb2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#67 0x00007f24df761000 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#68 0x00007f24de961c2b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#69 0x00007f24df19cf41 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#70 0x00007f24df19dbbd in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#71 0x00007f24df18234f in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#72 0x00007f24d353d590 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#73 0x00007f24dad69c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#74 0x00007f24dad69f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#75 0x00007f24dad69fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#76 0x00007f24de9bac57 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#77 0x00007f24de95f3e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#78 0x00007f24de96702c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#79 0x000000000040eebc in main ()

Reported using DrKonqi