https://bugs.kde.org/show_bug.cgi?id=411166

            Bug ID: 411166
           Summary: Crashed on clicking Window Docerations
           Product: systemsettings
           Version: 5.12.8
          Platform: Ubuntu Packages
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: plasma-b...@kde.org
          Reporter: tim.baverst...@corp.badoo.com
  Target Milestone: ---

Application: systemsettings5 (5.12.8)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-58-generic x86_64
Distribution: Ubuntu 18.04.3 LTS

-- Information about the crash:
- What I was doing when the application crashed:

I was looking for Window Decorations in 'Window Management' and then searching
the whoel of the rest of the settings before finally trying application style.
A link from Window Management to ApplicationStyle>WindowOperations would have
been helpful!

-- 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 0x7f422e427800 (LWP 12896))]

Thread 9 (Thread 0x7f41e1ffb700 (LWP 28811)):
#0  0x00007f4229e75bf9 in __GI___poll (fds=0x7f41d80ae830, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4223cd85c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4223cd86dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f422a7be90b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f422a7639ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f422a58222a in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f42280d76f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f422a58716d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f42260296db in start_thread (arg=0x7f41e1ffb700) at
pthread_create.c:463
#9  0x00007f4229e8288f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f41e37fe700 (LWP 28809)):
#0  0x00007f4229e75bf9 in __GI___poll (fds=0x7f41d0035150, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4223cd85c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4223cd86dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f422a7be90b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f422a7639ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f422a58222a in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f42280d76f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f422a58716d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f42260296db in start_thread (arg=0x7f41e37fe700) at
pthread_create.c:463
#9  0x00007f4229e8288f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f41ea0e7700 (LWP 28751)):
#0  0x00007f4229e75bf9 in __GI___poll (fds=0x561943736f80, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4223cd85c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4223cd8962 in g_main_loop_run () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f41e22890e6 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f4223d00195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f42260296db in start_thread (arg=0x7f41ea0e7700) at
pthread_create.c:463
#6  0x00007f4229e8288f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f41e3fff700 (LWP 28750)):
#0  0x00007f4229e710b4 in __GI___libc_read (fd=19, buf=0x7f41e3ffece0,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f4223d1d2d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4223cd80b7 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4223cd8570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4223cd86dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4223cd8721 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f4223d00195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f42260296db in start_thread (arg=0x7f41e3fff700) at
pthread_create.c:463
#8  0x00007f4229e8288f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f41f6a2d700 (LWP 12903)):
#0  0x00007f4223d1e664 in g_mutex_unlock () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4223cd7fd9 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4223cd8570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4223cd86dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f422a7be90b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f422a7639ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f422a58222a in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f42280d76f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f422a58716d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f42260296db in start_thread (arg=0x7f41f6a2d700) at
pthread_create.c:463
#10 0x00007f4229e8288f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f41fead8700 (LWP 12901)):
#0  0x00007f4229e75bf9 in __GI___poll (fds=0x7f41f8004a00, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4223cd85c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4223cd86dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f422a7be90b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f422a7639ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f422a58222a in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f42280d76f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f422a58716d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f42260296db in start_thread (arg=0x7f41fead8700) at
pthread_create.c:463
#9  0x00007f4229e8288f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f4205395700 (LWP 12899)):
#0  0x00007f422602f9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x561940303458) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f422602f9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x561940303408, cond=0x561940303430) at pthread_cond_wait.c:502
#2  0x00007f422602f9f3 in __pthread_cond_wait (cond=0x561940303430,
mutex=0x561940303408) at pthread_cond_wait.c:655
#3  0x00007f420645f0aa in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f420645edd7 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f42260296db in start_thread (arg=0x7f4205395700) at
pthread_create.c:463
#6  0x00007f4229e8288f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f4211a51700 (LWP 12898)):
#0  0x00007f4229e75bf9 in __GI___poll (fds=0x7f420c014770, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4223cd85c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4223cd86dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f422a7be90b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f422a7639ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f422a58222a in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f422c0c8d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f422a58716d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f42260296db in start_thread (arg=0x7f4211a51700) at
pthread_create.c:463
#9  0x00007f4229e8288f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f422e427800 (LWP 12896)):
[KCrash Handler]
#6  0x00007f422a5fa704 in
QtSharedPointer::ExternalRefCountData::getAndRef(QObject const*) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f42280b0754 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f42280c4931 in QV4::QmlListWrapper::toVariant() const () at
/usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f4227f88809 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f4227f888b4 in QV4::ExecutionEngine::toVariant(QV4::Value const&,
int, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007f42280bf82e in QQmlBinding::slowWrite(QQmlPropertyData const&,
QQmlPropertyData const&, QV4::Value const&, bool,
QFlags<QQmlPropertyData::WriteFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f42280c1853 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007f42280c1d7e in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#14 0x00007f42280beb23 in
QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007f42280caadb in
QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at
/usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f422804586e in QQmlComponentPrivate::complete(QQmlEnginePrivate*,
QQmlComponentPrivate::ConstructionState*) () at
/usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007f4228045987 in QQmlComponentPrivate::completeCreate() () at
/usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#18 0x00007f4228045762 in QQmlComponent::create(QQmlContext*) () at
/usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#19 0x00007f41bae7969f in  () at
/usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#20 0x00007f41bcd97711 in  () at
/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kwin/private/kdecoration/libkdecorationprivatedeclarative.so
#21 0x00007f42280cabed in
QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at
/usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#22 0x00007f422804a7a2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#23 0x00007f422804ad7c in QQmlEnginePrivate::incubate(QQmlIncubator&,
QQmlContextData*) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#24 0x00007f42280fe010 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#25 0x00007f42280fe131 in QQmlDelegateModel::object(int,
QQmlIncubator::IncubationMode) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#26 0x00007f42286bcc85 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#27 0x00007f42286afaf6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#28 0x00007f42286bb926 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#29 0x00007f42286bd2e2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#30 0x00007f42285ec7f3 in QQuickWindowPrivate::polishItems() () at
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#31 0x00007f422857ee1f in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#32 0x00007f422857fe9a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#33 0x00007f422afc5375 in QWindow::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#34 0x00007f42285f46c5 in QQuickWindow::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#35 0x00007f422b77582c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007f422b77d0f4 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#37 0x00007f422a7659a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007f422afba43f in
QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#39 0x00007f422afbb07d in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#40 0x00007f422af922eb in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#41 0x00007f421dbf51c0 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#42 0x00007f4223cd8417 in g_main_context_dispatch () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007f4223cd8650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f4223cd86dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f422a7be8ef in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#46 0x00007f422a7639ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#47 0x00007f422a76ca84 in QCoreApplication::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#48 0x000056193e9dbe44 in  ()
#49 0x00007f4229d82b97 in __libc_start_main (main=0x56193e9dba40, argc=1,
argv=0x7fffd947a818, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fffd947a808) at ../csu/libc-start.c:310
#50 0x000056193e9dbeca in _start ()

Reported using DrKonqi

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