Application: plasmashell (5.18.5)

Qt Version: 5.12.7
Frameworks Version: 5.70.0
Operating System: Linux 5.3.18-lp152.14-default x86_64
Windowing system: X11
Distribution: openSUSE Leap 15.2 Beta

-- Information about the crash:
- What I was doing when the application crashed:
i logged in to plasma session with sddm
- Unusual behavior I noticed:
The background und the bars are shown for a short time (2s) than a black screen occurse. Only the latte-bar are visible. STRG+ALT+Entf working for logout. After repeating login, the same behavior
- Custom settings of the application:
-sddm
-latte-dock (bar on the left side)
-only one desktop (no other virtual desktop/activity)
-kde bars on top and bottom
-alignment of desktop symbols rigth and column
-the behavior are on leap (today) und on tumbleweed (before 4 days) after the update and followed restart
-after editing file /.config/plasma-org.kde.plasma.desktop-appletsrc
[Containments][1][General]
alignment=1
arrangement=1

to

[Containments][1][General]
alignment=0
arrangement=0

and a logout and new login, the desktop was shown again, but the alignment /arrangement shouldnt be changed again, because the black screen shown again after new loggin.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f70d19b1900 (LWP 3143))]

Thread 17 (Thread 0x7f706c48b700 (LWP 3435)):
#0  QMutex::unlock (this=this@entry=0x55b96e9b8050) at thread/qmutex.cpp:335
#1  0x00007f70cb77d817 in QMutexLocker::unlock (this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:219
#2  QMutexLocker::~QMutexLocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:213
#3  QThreadData::canWaitLocked (this=<optimized out>) at ../../include/QtCore/5.12.7/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:269
#4  postEventSourcePrepare (timeout=<synthetic pointer>, s=0x55b96e9bf600) at kernel/qeventdispatcher_glib.cpp:259
#5  postEventSourceCheck (source=0x55b96e9bf600) at kernel/qeventdispatcher_glib.cpp:269
#6  0x00007f70c5278109 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#7  0x00007f70c5278670 in ?? () from /usr/lib64/libglib-2.0.so.0
#8  0x00007f70c52787dc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#9  0x00007f70cb77d12b in QEventDispatcherGlib::processEvents (this=0x55b96e546760, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#10 0x00007f70cb71e2da in QEventLoop::exec (this=this@entry=0x7f706c48ac70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#11 0x00007f70cb54410a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#12 0x00007f706cb70c97 in KCupsConnection::run() () from /usr/lib64/libkcupslib.so
#13 0x00007f70cb5458b2 in QThreadPrivate::start (arg=0x55b96e9b7e90) at thread/qthread_unix.cpp:361
#14 0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#15 0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7f706eb08700 (LWP 3413)):
#0  0x00007f70c86a987d in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f70942f6939 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f70942f73ac in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f70942f743f in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f70942b5ef8 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f70942b88c6 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f70942b8c64 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f70942f9811 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7f707c081700 (LWP 3344)):
#0  0x00007f70cade31d8 in read () from /lib64/libc.so.6
#1  0x00007f709eb48551 in pa_read () from /usr/lib64/pulseaudio/libpulsecommon-13.0.so
#2  0x00007f709f1fe6fe in pa_mainloop_prepare () from /usr/lib64/libpulse.so.0
#3  0x00007f709f1ff170 in pa_mainloop_iterate () from /usr/lib64/libpulse.so.0
#4  0x00007f709f1ff230 in pa_mainloop_run () from /usr/lib64/libpulse.so.0
#5  0x00007f709f20ceb9 in ?? () from /usr/lib64/libpulse.so.0
#6  0x00007f709eb76018 in ?? () from /usr/lib64/pulseaudio/libpulsecommon-13.0.so
#7  0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7f7080882700 (LWP 3343)):
#0  0x00007f70c86a9bab in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f70942f6a07 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f70942f7397 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f7094271ba8 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f709429403b in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f70942c7588 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f70942f9811 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7f7081083700 (LWP 3342)):
#0  0x00007f70c86a987d in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f70942f6939 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f7094be6958 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f70942c7765 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f70942f9811 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f7081884700 (LWP 3340)):
#0  0x00007f70c86a987d in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f70942f6939 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f70942f73ac in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f70942f743f in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f70942b5ef8 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f70942b8607 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f70942b8c24 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f70942f9811 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f7083087700 (LWP 3337)):
#0  0x00007f70910ca6bd in ?? () from /usr/lib64/libevent-2.1.so.6
#1  0x00007f70910cf84f in event_base_loop () from /usr/lib64/libevent-2.1.so.6
#2  0x00007f70942fd104 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f709429403b in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f7093c40824 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f70942c7658 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f70942f9811 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f7083888700 (LWP 3336)):
#0  0x00007f70c86a9bab in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f70942f6a07 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f70942f7397 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f70942f7482 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f70942b5ee1 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f70942b88c6 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f70942b8be4 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f70942f9811 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f7084089700 (LWP 3335)):
#0  0x00007f70c86a9bab in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f70942f6a07 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#2  0x00007f70942f7397 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007f70942f7482 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f70942b5ee1 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f70942b88c6 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f70942b8be4 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f70942f9811 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f708488a700 (LWP 3334)):
#0  0x00007f70cae00ad3 in __vsnprintf_chk () from /lib64/libc.so.6
#1  0x00007f70910d4a03 in evutil_vsnprintf () from /usr/lib64/libevent-2.1.so.6
#2  0x00007f70910d7f15 in event_logv_ () from /usr/lib64/libevent-2.1.so.6
#3  0x00007f70910d8194 in event_warn () from /usr/lib64/libevent-2.1.so.6
#4  0x00007f70910d9abc in ?? () from /usr/lib64/libevent-2.1.so.6
#5  0x00007f70910cf764 in event_base_loop () from /usr/lib64/libevent-2.1.so.6
#6  0x00007f70942fd104 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f709429403b in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007f70942bc4a4 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007f70942c7658 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007f70942f9811 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#12 0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f708588c700 (LWP 3332)):
#0  0x00007f70cadf2096 in epoll_pwait () from /lib64/libc.so.6
#1  0x00007f70910d9915 in ?? () from /usr/lib64/libevent-2.1.so.6
#2  0x00007f70910cf764 in event_base_loop () from /usr/lib64/libevent-2.1.so.6
#3  0x00007f70942fd015 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007f709429403b in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007f70942c7588 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007f70942f9811 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f70a6c5b700 (LWP 3278)):
#0  0x00007f70c52768d9 in ?? () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f70c5278012 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f70c5278670 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f70c52787dc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f70cb77d12b in QEventDispatcherGlib::processEvents (this=0x55b96c7b6520, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f70cb71e2da in QEventLoop::exec (this=this@entry=0x7f70a6c5ac40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f70cb54410a in QThread::exec (this=this@entry=0x55b96cc3bbf0) at thread/qthread.cpp:531
#7  0x00007f70cf50a146 in QQuickPixmapReader::run (this=0x55b96cc3bbf0) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/src/quick/util/qquickpixmapcache.cpp:953
#8  0x00007f70cb5458b2 in QThreadPrivate::start (arg=0x55b96cc3bbf0) at thread/qthread_unix.cpp:361
#9  0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f70b25cf700 (LWP 3262)):
#0  0x00007f70c86a987d in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f70b34618cb in ?? () from /usr/lib64/dri/i965_dri.so
#2  0x00007f70b34614b7 in ?? () from /usr/lib64/dri/i965_dri.so
#3  0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f70b7d06700 (LWP 3229)):
#0  0x00007f70cade31d8 in read () from /lib64/libc.so.6
#1  0x00007f70c52bf8c0 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f70c52781e8 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f70c5278670 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f70c52787dc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f70cb77d12b in QEventDispatcherGlib::processEvents (this=0x55b96c34e210, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f70cb71e2da in QEventLoop::exec (this=this@entry=0x7f70b7d05c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007f70cb54410a in QThread::exec (this=this@entry=0x55b96c36e7b0) at thread/qthread.cpp:531
#8  0x00007f70cf036b15 in QQmlThreadPrivate::run (this=0x55b96c36e7b0) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/src/qml/qml/ftw/qqmlthread.cpp:148
#9  0x00007f70cb5458b2 in QThreadPrivate::start (arg=0x55b96c36e7b0) at thread/qthread_unix.cpp:361
#10 0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f70b9db6700 (LWP 3165)):
#0  0x00007f70cade76db in poll () from /lib64/libc.so.6
#1  0x00007f70c52786c9 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f70c52787dc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f70cb77d12b in QEventDispatcherGlib::processEvents (this=0x55b96c35eaa0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f70cb71e2da in QEventLoop::exec (this=this@entry=0x7f70b9db5c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f70cb54410a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#6  0x00007f70cd360cd5 in ?? () from /usr/lib64/libQt5DBus.so.5
#7  0x00007f70cb5458b2 in QThreadPrivate::start (arg=0x7f70cd5d8d80) at thread/qthread_unix.cpp:361
#8  0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f70bc002700 (LWP 3157)):
#0  0x00007f70cade76db in poll () from /lib64/libc.so.6
#1  0x00007f70d0169307 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f70d016af3a in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f70be9e2300 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f70cb5458b2 in QThreadPrivate::start (arg=0x55b96c30b0b0) at thread/qthread_unix.cpp:361
#5  0x00007f70c86a34f9 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f70cadf1f2f in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f70d19b1900 (LWP 3143)):
[KCrash Handler]
#4  QVector<QQuickItemPrivate::ChangeListener>::indexOf (this=this@entry=0x45454545454545d5, t=..., from=from@entry=0) at /usr/include/qt5/QtCore/qvector.h:900
#5  0x00007f70cf5d2141 in QVector<QQuickItemPrivate::ChangeListener>::removeOne (t=..., this=<optimized out>) at /usr/include/qt5/QtCore/qvector.h:177
#6  QQuickItemPrivate::removeItemChangeListener (this=this@entry=0x4545454545454545, listener=listener@entry=0x55b96d6a20b0, types=..., types@entry=...) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/src/quick/items/qquickitem.cpp:3935
#7  0x00007f70cf6fc03a in QQuickShaderEffectSource::~QQuickShaderEffectSource (this=0x55b96d6a2090, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/src/quick/items/qquickshadereffectsource.cpp:217
#8  0x00007f70cf6fc099 in QQuickShaderEffectSource::~QQuickShaderEffectSource (this=0x55b96d6a2090, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/src/quick/items/qquickshadereffectsource.cpp:222
#9  0x00007f70ae8ce69b in QGfxSourceProxy::~QGfxSourceProxy (this=0x55b96d79b540, __in_chrg=<optimized out>) at qgfxsourceproxy.cpp:59
#10 0x00007f70ae8c9635 in QQmlPrivate::QQmlElement<QGfxSourceProxy>::~QQmlElement (this=0x55b96d79b540, __in_chrg=<optimized out>) at /usr/include/qt5/QtQml/qqmlprivate.h:108
#11 QQmlPrivate::QQmlElement<QGfxSourceProxy>::~QQmlElement (this=0x55b96d79b540, __in_chrg=<optimized out>) at /usr/include/qt5/QtQml/qqmlprivate.h:108
#12 0x00007f70cb74d7ab in QObjectPrivate::deleteChildren (this=this@entry=0x55b96d796dd0) at kernel/qobject.cpp:2017
#13 0x00007f70cb75734b in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1033
#14 0x00007f70cf5d5d9b in QQuickItem::~QQuickItem (this=0x55b96d796d10, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/src/quick/items/qquickitem.cpp:2383
#15 0x00007f70cf5f6905 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x55b96d796d10, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#16 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x55b96d796d10, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#17 0x00007f70cb74d7ab in QObjectPrivate::deleteChildren (this=this@entry=0x55b96d7967e0) at kernel/qobject.cpp:2017
#18 0x00007f70cb75734b in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1033
#19 0x00007f70cf5d5d9b in QQuickItem::~QQuickItem (this=0x55b96d796720, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/src/quick/items/qquickitem.cpp:2383
#20 0x00007f70cf5f6905 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x55b96d796720, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#21 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x55b96d796720, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#22 0x00007f70cb74d7ab in QObjectPrivate::deleteChildren (this=this@entry=0x55b96d796390) at kernel/qobject.cpp:2017
#23 0x00007f70cb75734b in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1033
#24 0x00007f70cf5d5d9b in QQuickItem::~QQuickItem (this=0x55b96d7962d0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/src/quick/items/qquickitem.cpp:2383
#25 0x00007f70cf5f6905 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x55b96d7962d0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#26 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x55b96d7962d0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#27 0x00007f70cb74d7ab in QObjectPrivate::deleteChildren (this=this@entry=0x55b96d7791d0) at kernel/qobject.cpp:2017
#28 0x00007f70cb75734b in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1033
#29 0x00007f70cf5d5d9b in QQuickItem::~QQuickItem (this=0x55b96d779110, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/src/quick/items/qquickitem.cpp:2383
#30 0x00007f70cf5f6b25 in QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement (this=0x55b96d779110, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#31 QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement (this=0x55b96d779110, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#32 0x00007f70cb74d7ab in QObjectPrivate::deleteChildren (this=this@entry=0x55b96d7774d0) at kernel/qobject.cpp:2017
#33 0x00007f70cb75734b in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1033
#34 0x00007f70cf5d5d9b in QQuickItem::~QQuickItem (this=0x55b96d777410, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/src/quick/items/qquickitem.cpp:2383
#35 0x00007f70cf5f6905 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x55b96d777410, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#36 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x55b96d777410, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#37 0x00007f70cb74d7ab in QObjectPrivate::deleteChildren (this=this@entry=0x55b96d773e60) at kernel/qobject.cpp:2017
#38 0x00007f70cb75734b in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1033
#39 0x00007f70cf5d5d9b in QQuickItem::~QQuickItem (this=0x55b96d6b01b0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/src/quick/items/qquickitem.cpp:2383
#40 0x00007f70cf5f6b25 in QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement (this=0x55b96d6b01b0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#41 QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement (this=0x55b96d6b01b0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#42 0x00007f70cb74d7ab in QObjectPrivate::deleteChildren (this=this@entry=0x55b96d736390) at kernel/qobject.cpp:2017
#43 0x00007f70cb75734b in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1033
#44 0x00007f70cf5d5d9b in QQuickItem::~QQuickItem (this=0x55b96d7362d0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/src/quick/items/qquickitem.cpp:2383
#45 0x00007f70cf5f6905 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x55b96d7362d0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#46 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x55b96d7362d0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#47 0x00007f70cb750760 in QObject::event (this=this@entry=0x55b96d7362d0, e=e@entry=0x55b96d7348e0) at kernel/qobject.cpp:1252
#48 0x00007f70cf5d38fb in QQuickItem::event (this=0x55b96d7362d0, ev=0x55b96d7348e0) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.1.x86_64/src/quick/items/qquickitem.cpp:8105
#49 0x00007f70cc9a4a0c in QApplicationPrivate::notify_helper (this=this@entry=0x55b96c2e9290, receiver=receiver@entry=0x55b96d7362d0, e=e@entry=0x55b96d7348e0) at kernel/qapplication.cpp:3701
#50 0x00007f70cc9ac020 in QApplication::notify (this=0x7ffe42c6e500, receiver=0x55b96d7362d0, e=0x55b96d7348e0) at kernel/qapplication.cpp:3447
#51 0x00007f70cb720088 in QCoreApplication::notifyInternal2 (receiver=0x55b96d7362d0, event=0x55b96d7348e0) at kernel/qcoreapplication.cpp:1088
#52 0x00007f70cb72025e in QCoreApplication::sendEvent (receiver=<optimized out>, event=event@entry=0x55b96d7348e0) at kernel/qcoreapplication.cpp:1476
#53 0x00007f70cb722c47 in QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55b96c2dd950) at kernel/qcoreapplication.cpp:1825
#54 0x00007f70cb7231e8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1679
#55 0x00007f70cb77daf3 in postEventSourceDispatch (s=0x55b96c34b080) at kernel/qeventdispatcher_glib.cpp:276
#56 0x00007f70c52783b4 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#57 0x00007f70c5278750 in ?? () from /usr/lib64/libglib-2.0.so.0
#58 0x00007f70c52787dc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#59 0x00007f70cb77d10f in QEventDispatcherGlib::processEvents (this=0x55b96c2f1d40, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#60 0x00007f70cb71e2da in QEventLoop::exec (this=this@entry=0x7ffe42c6e3b0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#61 0x00007f70cb7274e0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1389
#62 0x000055b96bab8b14 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma5-workspace-5.18.5-lp152.1.1.x86_64/shell/main.cpp:228
[Inferior 1 (process 3143) detached]

Possible duplicates by query: bug 421685, bug 421665, bug 421654, bug 421652, bug 421610.

Reported using DrKonqi