Application: systemsettings5 (5.5.1)

Qt Version: 5.5.1
Operating System: Linux 4.2.5-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
Every time I change any option in system settings, click "apply" and then close the window, I see the new window with crash report

The crash can be reproduced every time.

-- Backtrace:
Application: Системні параметри (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f97c3f5c800 (LWP 10815))]

Thread 4 (Thread 0x7f97b20d1700 (LWP 10816)):
#0  0x00007f97c05ed18d in poll () from /usr/lib/libc.so.6
#1  0x00007f97be2aeae2 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007f97be2b0757 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007f97b39fc379 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f97c0cd8b8e in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007f97bda2d4a4 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007f97c05f613d in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7f97a179c700 (LWP 10818)):
#0  0x00007f97bda33ec3 in pthread_getspecific () from /usr/lib/libpthread.so.0
#1  0x00007f97bd536bc0 in g_thread_self () from /usr/lib/libglib-2.0.so.0
#2  0x00007f97bd50ef3c in g_main_context_acquire () from /usr/lib/libglib-2.0.so.0
#3  0x00007f97bd50fe75 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f97bd5100cc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f97c0f1056b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f97c0eb757a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007f97c0cd3be4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007f97bf64b055 in ?? () from /usr/lib/libQt5Qml.so.5
#9  0x00007f97c0cd8b8e in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007f97bda2d4a4 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f97c05f613d in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f979a490700 (LWP 10820)):
#0  0x00007f97c05ed18d in poll () from /usr/lib/libc.so.6
#1  0x00007f97bd50ffbc in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f97bd5100cc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f97c0f1056b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f97c0eb757a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f97c0cd3be4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f97bf64b055 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f97c0cd8b8e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f97bda2d4a4 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f97c05f613d in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f97c3f5c800 (LWP 10815)):
[KCrash Handler]
#5  0x00007f97c0eec8e7 in QObject::disconnect(QObject const*, char const*, QObject const*, char const*) () from /usr/lib/libQt5Core.so.5
#6  0x00007f97a4109989 in KParts::PartManager::~PartManager() () from /usr/lib/libKF5Parts.so.5
#7  0x00007f97a4109c49 in KParts::PartManager::~PartManager() () from /usr/lib/libKF5Parts.so.5
#8  0x00007f97c0ee684b in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#9  0x00007f97c0ef05d0 in QObject::~QObject() () from /usr/lib/libQt5Core.so.5
#10 0x00007f97a485f55b in KHTMLPart::~KHTMLPart() () from /usr/lib/libKF5KHtml.so.5
#11 0x00007f97a485f679 in KHTMLPart::~KHTMLPart() () from /usr/lib/libKF5KHtml.so.5
#12 0x00007f97c0ee9200 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#13 0x00007f97c23c09ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#14 0x00007f97c23c5e86 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#15 0x00007f97c0eb9bab in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#16 0x00007f97c0ebbfa6 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#17 0x00007f97c0f10143 in ?? () from /usr/lib/libQt5Core.so.5
#18 0x00007f97bd50fdc7 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#19 0x00007f97bd510020 in ?? () from /usr/lib/libglib-2.0.so.0
#20 0x00007f97bd5100cc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#21 0x00007f97c0f1054f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#22 0x00007f97c0eb757a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#23 0x00007f97c0ebf53c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#24 0x000000000040f39b in main ()

Possible duplicates by query: bug 356487, bug 356465, bug 356364, bug 355915, bug 355828.

Reported using DrKonqi