Bug 414432

Summary: KDE System Settings crashes when switching to GTK and then Window Decorations
Product: [Applications] systemsettings Reporter: Mufeed Ali <kdebugs.undead>
Component: generalAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED DUPLICATE    
Severity: crash CC: nate
Priority: NOR Keywords: drkonqi
Version: 5.17.3   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Mufeed Ali 2019-11-23 18:02:35 UTC 
Application: systemsettings5 (5.17.3)

Qt Version: 5.13.2
Frameworks Version: 5.64.0
Operating System: Linux 5.3.12-arch1-1 x86_64
Distribution: Arch Linux

-- Information about the crash:
- What I was doing when the application crashed:
I opened the System Settings, changed my GTK theme and then tried to change my Window Decorations.
- Unusual behavior I noticed:
System Settings crashed. I also have a major bug with Kwin on X11 crashing on boot (doesn't happen on Wayland) that I have not managed to get logs for. It's not exactly a crash, the windows are all there and i can interact with them but I can't see them until i do "kwin_x11 --replace". Once I restart Kwin, it works perfectly. Could there be any connection between the two issues? If so, is there any way to collect logs for Kwin from boot?

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fae239166c0 (LWP 114441))]

Thread 27 (Thread 0x7fadb0a85700 (LWP 114785)):
#0  0x00007ffdc37e46bb in  ()
#1  0x00007ffdc37e4908 in clock_gettime ()
#2  0x00007fae27e7e56b in clock_gettime () at /usr/lib/libc.so.6
#3  0x00007fae2840b412 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007fae28409cfa in QTimerInfoList::updateCurrentTime() () at /usr/lib/libQt5Core.so.5
#5  0x00007fae2840a2c6 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/libQt5Core.so.5
#6  0x00007fae2840b86f in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fae25e39a00 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#8  0x00007fae25e3a046 in  () at /usr/lib/libglib-2.0.so.0
#9  0x00007fae25e3a1f1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#10 0x00007fae2840bb2c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#11 0x00007fae283b283c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#12 0x00007fae281e4305 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#13 0x00007fae274c5449 in  () at /usr/lib/libQt5Qml.so.5
#14 0x00007fae281e5530 in  () at /usr/lib/libQt5Core.so.5
#15 0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#16 0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 26 (Thread 0x7fadb1be4700 (LWP 114783)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 25 (Thread 0x7fadb27e5700 (LWP 114781)):
#0  0x00007fae27e669ef in poll () at /usr/lib/libc.so.6
#1  0x00007fae25e3a120 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fae25e3a1f1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fae2840bb2c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fae283b283c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fae281e4305 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fae274c5449 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007fae281e5530 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 24 (Thread 0x7fadb2fe6700 (LWP 114477)):
#0  0x00007fae27e669ef in poll () at /usr/lib/libc.so.6
#1  0x00007fae25e3a120 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fae25e3a1f1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fadbdbefe5e in  () at /usr/lib/gio/modules/libdconfsettings.so
#4  0x00007fae25e16bb1 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 23 (Thread 0x7fadbf5ef700 (LWP 114476)):
#0  0x00007fae27e6242c in read () at /usr/lib/libc.so.6
#1  0x00007fae25dea9f0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fae25e389e1 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007fae25e3a0c8 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fae25e3b0c3 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#5  0x00007faddc19bbc8 in  () at /usr/lib/libgio-2.0.so.0
#6  0x00007fae25e16bb1 in  () at /usr/lib/libglib-2.0.so.0
#7  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 22 (Thread 0x7fadbe9a2700 (LWP 114475)):
#0  0x00007fae27e669ef in poll () at /usr/lib/libc.so.6
#1  0x00007fae25e3a120 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fae25e3a1f1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fae25e3a242 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fae25e16bb1 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7faddd014700 (LWP 114464)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7faddd815700 (LWP 114463)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7fadde416700 (LWP 114462)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7faddec17700 (LWP 114461)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7fade5975700 (LWP 114460)):
#0  0x00007fae27e669ef in poll () at /usr/lib/libc.so.6
#1  0x00007fae25e3a120 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fae25e3a1f1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fae2840bb2c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fae283b283c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fae281e4305 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fae274c5449 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007fae281e5530 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7fade701d700 (LWP 114458)):
#0  0x00007fae27e669ef in poll () at /usr/lib/libc.so.6
#1  0x00007fae25e3a120 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fae25e3a1f1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fae2840bb2c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fae283b283c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fae281e4305 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fae274c5449 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007fae281e5530 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7faddffff700 (LWP 114456)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7fade7fff700 (LWP 114455)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7fae0c9bb700 (LWP 114454)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7fae0d1bc700 (LWP 114453)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7fae0d9bd700 (LWP 114452)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7fae0e1be700 (LWP 114451)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7fae0e9bf700 (LWP 114450)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7fae0f1c0700 (LWP 114449)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7fae18a0a700 (LWP 114448)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7fae1920b700 (LWP 114447)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fae19a0c700 (LWP 114446)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fae1a362700 (LWP 114445)):
#0  0x00007fae27d58c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fae1aeb9e7c in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fae1aeb9a78 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fae21566700 (LWP 114444)):
#0  0x00007fae27e669ef in poll () at /usr/lib/libc.so.6
#1  0x00007fae25e3a120 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fae25e3a1f1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fae2840bb2c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fae283b283c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fae281e4305 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fae28645b37 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007fae281e5530 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fae22af7700 (LWP 114443)):
#0  0x00007fae27e669ef in poll () at /usr/lib/libc.so.6
#1  0x00007fae269f9630 in  () at /usr/lib/libxcb.so.1
#2  0x00007fae269fb2db in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007fae234bb0c1 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fae281e5530 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fae27d524cf in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fae27e712d3 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fae239166c0 (LWP 114441)):
[KCrash Handler]
#6  0x00007fae2825fa96 in QtSharedPointer::ExternalRefCountData::getAndRef(QObject const*) () at /usr/lib/libQt5Core.so.5
#7  0x00007fae2748ffd8 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007fae2749e202 in QV4::QmlListWrapper::toVariant() const () at /usr/lib/libQt5Qml.so.5
#9  0x00007fae273de726 in  () at /usr/lib/libQt5Qml.so.5
#10 0x00007fae273deba5 in QV4::ExecutionEngine::toVariant(QV4::Value const&, int, bool) () at /usr/lib/libQt5Qml.so.5
#11 0x00007fae27498e30 in QQmlBinding::slowWrite(QQmlPropertyData const&, QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#12 0x00007fae2749ac71 in  () at /usr/lib/libQt5Qml.so.5
#13 0x00007fae2749b82d in  () at /usr/lib/libQt5Qml.so.5
#14 0x00007fae27497f74 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#15 0x00007fae274a6a8e in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at /usr/lib/libQt5Qml.so.5
#16 0x00007fae27427472 in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () at /usr/lib/libQt5Qml.so.5
#17 0x00007fae27427594 in QQmlComponentPrivate::completeCreate() () at /usr/lib/libQt5Qml.so.5
#18 0x00007fae27427376 in QQmlComponent::create(QQmlContext*) () at /usr/lib/libQt5Qml.so.5
#19 0x00007fadbc4c7e01 in  () at /usr/lib/qt/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#20 0x00007fadbdeae54c in  () at /usr/lib/qt/qml/org/kde/kwin/private/kdecoration/libkdecorationprivatedeclarative.so
#21 0x00007fae274a6c6d in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at /usr/lib/libQt5Qml.so.5
#22 0x00007fae2742c80b in  () at /usr/lib/libQt5Qml.so.5
#23 0x00007fae2742cd73 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /usr/lib/libQt5Qml.so.5
#24 0x00007fae27516e90 in  () at /usr/lib/libQt5Qml.so.5
#25 0x00007fae27517035 in QQmlDelegateModel::object(int, QQmlIncubator::IncubationMode) () at /usr/lib/libQt5Qml.so.5
#26 0x00007fae2796c416 in  () at /usr/lib/libQt5Quick.so.5
#27 0x00007fae2795ffee in  () at /usr/lib/libQt5Quick.so.5
#28 0x00007fae2796d674 in  () at /usr/lib/libQt5Quick.so.5
#29 0x00007fae279702d1 in  () at /usr/lib/libQt5Quick.so.5
#30 0x00007fae2797047d in QQuickItemView::modelUpdated(QQmlChangeSet const&, bool) () at /usr/lib/libQt5Quick.so.5
#31 0x00007fae2797195d in  () at /usr/lib/libQt5Quick.so.5
#32 0x00007fae283dfac1 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#33 0x00007fae274efaa7 in QQmlInstanceModel::modelUpdated(QQmlChangeSet const&, bool) () at /usr/lib/libQt5Qml.so.5
#34 0x00007fae2750bf89 in  () at /usr/lib/libQt5Qml.so.5
#35 0x00007fae27512f62 in  () at /usr/lib/libQt5Qml.so.5
#36 0x00007fae27513378 in  () at /usr/lib/libQt5Qml.so.5
#37 0x00007fae2751d43a in QQmlDelegateModel::_q_modelReset() () at /usr/lib/libQt5Qml.so.5
#38 0x00007fae2751d9b9 in  () at /usr/lib/libQt5Qml.so.5
#39 0x00007fae2751dd63 in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib/libQt5Qml.so.5
#40 0x00007fae283dfb7d in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#41 0x00007fae28356f0b in QAbstractItemModel::modelReset(QAbstractItemModel::QPrivateSignal) () at /usr/lib/libQt5Core.so.5
#42 0x00007fae28387925 in  () at /usr/lib/libQt5Core.so.5
#43 0x00007fae2838c238 in  () at /usr/lib/libQt5Core.so.5
#44 0x00007fae283dfac1 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#45 0x00007fae28356f0b in QAbstractItemModel::modelReset(QAbstractItemModel::QPrivateSignal) () at /usr/lib/libQt5Core.so.5
#46 0x00007fadbe14a4f8 in  () at /usr/lib/qt/plugins/kcms/kcm_kwindecoration.so
#47 0x00007fae283e04fa in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#48 0x00007fae28e074e5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#49 0x00007fae28e10e11 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#50 0x00007fae283b3d12 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#51 0x00007fae283b6a89 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#52 0x00007fae2840c514 in  () at /usr/lib/libQt5Core.so.5
#53 0x00007fae25e3839e in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#54 0x00007fae25e3a1b1 in  () at /usr/lib/libglib-2.0.so.0
#55 0x00007fae25e3a1f1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#56 0x00007fae2840bb13 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#57 0x00007fae283b283c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#58 0x00007fae283ba676 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#59 0x00005650c3566475 in  ()
#60 0x00007fae27d99153 in __libc_start_main () at /usr/lib/libc.so.6
#61 0x00005650c35664fe in _start ()
[Inferior 1 (process 114441) detached]

The reporter indicates this bug may be a duplicate of or related to bug 390857.

Possible duplicates by query: bug 414388, bug 414361, bug 414358, bug 414347, bug 414293.

Reported using DrKonqi
Comment 1 Nate Graham 2019-11-23 18:34:31 UTC 

*** This bug has been marked as a duplicate of bug 390857 ***