https://bugs.kde.org/show_bug.cgi?id=401422

            Bug ID: 401422
           Summary: Plasma crash when adding virtual desktop
           Product: kwin
           Version: 5.13.5
          Platform: Debian testing
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kwin-bugs-n...@kde.org
          Reporter: marcosa...@gmail.com
  Target Milestone: ---

Application: kwin_x11 (5.13.5)

Qt Version: 5.11.2
Frameworks Version: 5.49.0
Operating System: Linux 4.18.0-2-amd64 x86_64
Distribution: Debian GNU/Linux testing (buster)

-- Information about the crash:
- What I was doing when the application crashed:
Adding a virtual desktop through the task switching hot corner, then clicking
the add button in the lower right corner.

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3a85f3b940 (LWP 2145))]

Thread 15 (Thread 0x7f3a7d83b700 (LWP 2848)):
#0  0x00007f3a90bef836 in __GI_ppoll (fds=0x7f3a70000d68, nfds=1,
timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1  0x00007f3a8f7e1d11 in qt_safe_poll(pollfd*, unsigned long, timespec const*)
() at /lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3a8f7e3189 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f3a8f792d0b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3a8f5e20c6 in QThread::exec() () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3a8dc40385 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f3a8f5ebc97 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3a8e410f2a in start_thread (arg=0x7f3a7d83b700) at
pthread_create.c:463
#8  0x00007f3a90bf9edf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f3a7fdf9700 (LWP 2847)):
#0  0x00007f3a90bef836 in __GI_ppoll (fds=0x7f3a74030468, nfds=1,
timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1  0x00007f3a8f7e1d11 in qt_safe_poll(pollfd*, unsigned long, timespec const*)
() at /lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3a8f7e3189 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f3a8f792d0b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3a8f5e20c6 in QThread::exec() () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3a8dc40385 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f3a8f5ebc97 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3a8e410f2a in start_thread (arg=0x7f3a7fdf9700) at
pthread_create.c:463
#8  0x00007f3a90bf9edf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f3a56ffd700 (LWP 2732)):
#0  0x00007f3a8e416e6c in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55735e303a4c) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3a8e416e6c in __pthread_cond_wait_common (abstime=0x0,
mutex=0x55735e3039f8, cond=0x55735e303a20) at pthread_cond_wait.c:502
#2  0x00007f3a8e416e6c in __pthread_cond_wait (cond=0x55735e303a20,
mutex=0x55735e3039f8) at pthread_cond_wait.c:655
#3  0x00007f3a6b60998b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f3a6b6096b7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f3a8e410f2a in start_thread (arg=0x7f3a56ffd700) at
pthread_create.c:463
#6  0x00007f3a90bf9edf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f3a567fc700 (LWP 2375)):
#0  0x00007f3a8e416e6c in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7f3a8f204fb8) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3a8e416e6c in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7f3a8f204f68, cond=0x7f3a8f204f90) at pthread_cond_wait.c:502
#2  0x00007f3a8e416e6c in __pthread_cond_wait (cond=0x7f3a8f204f90,
mutex=0x7f3a8f204f68) at pthread_cond_wait.c:655
#3  0x00007f3a8f10de2a in  () at /lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f3a8f10de49 in  () at /lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f3a8e410f2a in start_thread (arg=0x7f3a567fc700) at
pthread_create.c:463
#6  0x00007f3a90bf9edf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f3a577fe700 (LWP 2366)):
#0  0x00007f3a8e416e6c in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55735dfd9888) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3a8e416e6c in __pthread_cond_wait_common (abstime=0x0,
mutex=0x55735dfd9838, cond=0x55735dfd9860) at pthread_cond_wait.c:502
#2  0x00007f3a8e416e6c in __pthread_cond_wait (cond=0x55735dfd9860,
mutex=0x55735dfd9838) at pthread_cond_wait.c:655
#3  0x00007f3a6b60998b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f3a6b6096b7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f3a8e410f2a in start_thread (arg=0x7f3a577fe700) at
pthread_create.c:463
#6  0x00007f3a90bf9edf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f3a57fff700 (LWP 2362)):
#0  0x00007f3a8e416e6c in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55735defeb5c) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3a8e416e6c in __pthread_cond_wait_common (abstime=0x0,
mutex=0x55735defeb08, cond=0x55735defeb30) at pthread_cond_wait.c:502
#2  0x00007f3a8e416e6c in __pthread_cond_wait (cond=0x55735defeb30,
mutex=0x55735defeb08) at pthread_cond_wait.c:655
#3  0x00007f3a6b60998b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f3a6b6096b7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f3a8e410f2a in start_thread (arg=0x7f3a57fff700) at
pthread_create.c:463
#6  0x00007f3a90bf9edf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f3a64ed4700 (LWP 2361)):
#0  0x00007f3a8e416e6c in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55735defeb5c) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3a8e416e6c in __pthread_cond_wait_common (abstime=0x0,
mutex=0x55735defeb08, cond=0x55735defeb30) at pthread_cond_wait.c:502
#2  0x00007f3a8e416e6c in __pthread_cond_wait (cond=0x55735defeb30,
mutex=0x55735defeb08) at pthread_cond_wait.c:655
#3  0x00007f3a6b60998b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f3a6b6096b7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f3a8e410f2a in start_thread (arg=0x7f3a64ed4700) at
pthread_create.c:463
#6  0x00007f3a90bf9edf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f3a656d5700 (LWP 2360)):
#0  0x00007f3a8e416e6c in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55735defea4c) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3a8e416e6c in __pthread_cond_wait_common (abstime=0x0,
mutex=0x55735defe9f8, cond=0x55735defea20) at pthread_cond_wait.c:502
#2  0x00007f3a8e416e6c in __pthread_cond_wait (cond=0x55735defea20,
mutex=0x55735defe9f8) at pthread_cond_wait.c:655
#3  0x00007f3a6b60998b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f3a6b6096b7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f3a8e410f2a in start_thread (arg=0x7f3a656d5700) at
pthread_create.c:463
#6  0x00007f3a90bf9edf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f3a65ed6700 (LWP 2359)):
#0  0x00007f3a8e416e6c in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55735defea4c) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3a8e416e6c in __pthread_cond_wait_common (abstime=0x0,
mutex=0x55735defe9f8, cond=0x55735defea20) at pthread_cond_wait.c:502
#2  0x00007f3a8e416e6c in __pthread_cond_wait (cond=0x55735defea20,
mutex=0x55735defe9f8) at pthread_cond_wait.c:655
#3  0x00007f3a6b60998b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f3a6b6096b7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f3a8e410f2a in start_thread (arg=0x7f3a65ed6700) at
pthread_create.c:463
#6  0x00007f3a90bf9edf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f3a666d7700 (LWP 2358)):
#0  0x00007f3a8e416e6c in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55735defea48) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3a8e416e6c in __pthread_cond_wait_common (abstime=0x0,
mutex=0x55735defe9f8, cond=0x55735defea20) at pthread_cond_wait.c:502
#2  0x00007f3a8e416e6c in __pthread_cond_wait (cond=0x55735defea20,
mutex=0x55735defe9f8) at pthread_cond_wait.c:655
#3  0x00007f3a6b60998b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f3a6b6096b7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f3a8e410f2a in start_thread (arg=0x7f3a666d7700) at
pthread_create.c:463
#6  0x00007f3a90bf9edf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f3a66ed8700 (LWP 2357)):
#0  0x00007f3a8e416e6c in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55735dd1ab00) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3a8e416e6c in __pthread_cond_wait_common (abstime=0x0,
mutex=0x55735dd1aab0, cond=0x55735dd1aad8) at pthread_cond_wait.c:502
#2  0x00007f3a8e416e6c in __pthread_cond_wait (cond=0x55735dd1aad8,
mutex=0x55735dd1aab0) at pthread_cond_wait.c:655
#3  0x00007f3a6b60998b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f3a6b6096b7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f3a8e410f2a in start_thread (arg=0x7f3a66ed8700) at
pthread_create.c:463
#6  0x00007f3a90bf9edf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f3a676d9700 (LWP 2356)):
#0  0x00007f3a8e416e6c in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55735defb7c0) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3a8e416e6c in __pthread_cond_wait_common (abstime=0x0,
mutex=0x55735defb770, cond=0x55735defb798) at pthread_cond_wait.c:502
#2  0x00007f3a8e416e6c in __pthread_cond_wait (cond=0x55735defb798,
mutex=0x55735defb770) at pthread_cond_wait.c:655
#3  0x00007f3a6b60998b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f3a6b6096b7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f3a8e410f2a in start_thread (arg=0x7f3a676d9700) at
pthread_create.c:463
#6  0x00007f3a90bf9edf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f3a7f4b7700 (LWP 2335)):
#0  0x00007f3a90bef836 in __GI_ppoll (fds=0x7f3a6c000d28, nfds=1,
timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1  0x00007f3a8f7e1d11 in qt_safe_poll(pollfd*, unsigned long, timespec const*)
() at /lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3a8f7e3189 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f3a8f792d0b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3a8f5e20c6 in QThread::exec() () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3a8dc40385 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f3a8f5ebc97 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3a8e410f2a in start_thread (arg=0x7f3a7f4b7700) at
pthread_create.c:463
#8  0x00007f3a90bf9edf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f3a848a8700 (LWP 2233)):
#0  0x00007f3a90bef836 in __GI_ppoll (fds=0x7f3a7800ee28, nfds=1,
timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1  0x00007f3a8f7e1d11 in qt_safe_poll(pollfd*, unsigned long, timespec const*)
() at /lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3a8f7e3189 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f3a8f792d0b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3a8f5e20c6 in QThread::exec() () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3a8d71d545 in  () at /lib/x86_64-linux-gnu/libQt5DBus.so.5
#6  0x00007f3a8f5ebc97 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3a8e410f2a in start_thread (arg=0x7f3a848a8700) at
pthread_create.c:463
#8  0x00007f3a90bf9edf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f3a85f3b940 (LWP 2145)):
[KCrash Handler]
#6  0x00007f3a8f2b5cd7 in  () at
/lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
#7  0x00007f3a8f2af69e in  () at
/lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
#8  0x00007f3a8f32e130 in  () at
/lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
#9  0x00007f3a8f7bd28b in QMetaObject::activate(QObject*, int, int, void**) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f3a8f393f87 in
KWin::EffectsHandler::windowGeometryShapeChanged(KWin::EffectWindow*, QRect
const&) () at /lib/x86_64-linux-gnu/libkwineffects.so.11
#11 0x00007f3a8f7bd3e0 in QMetaObject::activate(QObject*, int, int, void**) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f3a90a3aae7 in KWin::Toplevel::geometryShapeChanged(KWin::Toplevel*,
QRect const&) () at /lib/x86_64-linux-gnu/libkwin.so.5
#13 0x00007f3a908c1096 in KWin::Client::updateShape() () at
/lib/x86_64-linux-gnu/libkwin.so.5
#14 0x00007f3a9094c500 in KWin::Client::setGeometry(int, int, int, int,
KWin::AbstractClient::ForceGeometry_t) () at /lib/x86_64-linux-gnu/libkwin.so.5
#15 0x00007f3a9094dda6 in KWin::AbstractClient::blockGeometryUpdates(bool) ()
at /lib/x86_64-linux-gnu/libkwin.so.5
#16 0x00007f3a9094e9da in KWin::Client::changeMaximize(bool, bool, bool) () at
/lib/x86_64-linux-gnu/libkwin.so.5
#17 0x00007f3a90952366 in KWin::AbstractClient::checkWorkspacePosition(QRect,
int, QRect) () at /lib/x86_64-linux-gnu/libkwin.so.5
#18 0x00007f3a9095783c in KWin::Workspace::updateClientArea(bool) () at
/lib/x86_64-linux-gnu/libkwin.so.5
#19 0x00007f3a8f7bd28b in QMetaObject::activate(QObject*, int, int, void**) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f3a90a3afcc in KWin::VirtualDesktopManager::countChanged(unsigned
int, unsigned int) () at /lib/x86_64-linux-gnu/libkwin.so.5
#21 0x00007f3a9099e4ea in KWin::VirtualDesktopManager::setCount(unsigned int)
() at /lib/x86_64-linux-gnu/libkwin.so.5
#22 0x00007f3a8f32e0ed in  () at
/lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
#23 0x00007f3a8f7bd28b in QMetaObject::activate(QObject*, int, int, void**) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f3a8f7bd28b in QMetaObject::activate(QObject*, int, int, void**) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f3a8db92455 in QQmlVMEMetaObject::metaCall(QObject*,
QMetaObject::Call, int, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#26 0x00007f3a8db91e6a in QQmlVMEMetaObject::metaCall(QObject*,
QMetaObject::Call, int, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#27 0x00007f3a8db91e6a in QQmlVMEMetaObject::metaCall(QObject*,
QMetaObject::Call, int, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#28 0x00007f3a8dbf2f3d in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#29 0x00007f3a8db59643 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#30 0x00007f3a8db5a809 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#31 0x00007f3a8db5b4d3 in QV4::QObjectMethod::callInternal(QV4::Value const*,
QV4::Value const*, int) const () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#32 0x00007f3a8db75b55 in
QV4::Runtime::method_callProperty(QV4::ExecutionEngine*, QV4::Value*, int,
QV4::Value*, int) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#33 0x00007f3a8db690d2 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#34 0x00007f3a8dc209bf in QQmlJavaScriptExpression::evaluate(QV4::CallData*,
bool*) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#35 0x00007f3a8dbb2d57 in QQmlBoundSignalExpression::evaluate(void**) () at
/lib/x86_64-linux-gnu/libQt5Qml.so.5
#36 0x00007f3a8dbb3eeb in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#37 0x00007f3a8dbfd703 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*,
void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#38 0x00007f3a8db9635a in QQmlData::signalEmitted(QAbstractDeclarativeData*,
QObject*, int, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#39 0x00007f3a8f7bcbbf in QMetaObject::activate(QObject*, int, int, void**) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x00007f3a3c9e462f in  () at
/usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#41 0x00007f3a3c9e4b1c in  () at
/usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#42 0x00007f3a3c9e5123 in  () at
/usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#43 0x00007f3a8dbf2f3d in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#44 0x00007f3a8db59361 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#45 0x00007f3a8db5a835 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#46 0x00007f3a8db5b8ba in QV4::QObjectMethod::callInternal(QV4::Value const*,
QV4::Value const*, int) const () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#47 0x00007f3a8db75b55 in
QV4::Runtime::method_callProperty(QV4::ExecutionEngine*, QV4::Value*, int,
QV4::Value*, int) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#48 0x00007f3a8db690d2 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#49 0x00007f3a8dc209bf in QQmlJavaScriptExpression::evaluate(QV4::CallData*,
bool*) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#50 0x00007f3a8dbb2d57 in QQmlBoundSignalExpression::evaluate(void**) () at
/lib/x86_64-linux-gnu/libQt5Qml.so.5
#51 0x00007f3a8dbb3eeb in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#52 0x00007f3a8dbfd703 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*,
void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#53 0x00007f3a8db9635a in QQmlData::signalEmitted(QAbstractDeclarativeData*,
QObject*, int, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#54 0x00007f3a8f7bcbbf in QMetaObject::activate(QObject*, int, int, void**) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#55 0x00007f3a8e048542 in QQuickMouseArea::released(QQuickMouseEvent*) () at
/lib/x86_64-linux-gnu/libQt5Quick.so.5
#56 0x00007f3a8e049d4c in QQuickMouseArea::setPressed(Qt::MouseButton, bool,
Qt::MouseEventSource) () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#57 0x00007f3a8e04aeef in QQuickMouseArea::mouseReleaseEvent(QMouseEvent*) ()
at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#58 0x00007f3a8dfbc098 in QQuickItem::event(QEvent*) () at
/lib/x86_64-linux-gnu/libQt5Quick.so.5
#59 0x00007f3a9010c491 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#60 0x00007f3a90113ad0 in QApplication::notify(QObject*, QEvent*) () at
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#61 0x00007f3a8f794039 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib/x86_64-linux-gnu/libQt5Core.so.5
#62 0x00007f3a8dfd4967 in
QQuickWindowPrivate::deliverMouseEvent(QQuickPointerMouseEvent*) () at
/lib/x86_64-linux-gnu/libQt5Quick.so.5
#63 0x00007f3a8dfd53db in
QQuickWindowPrivate::deliverPointerEvent(QQuickPointerEvent*) () at
/lib/x86_64-linux-gnu/libQt5Quick.so.5
#64 0x00007f3a8dfd5d0f in QQuickWindowPrivate::handleMouseEvent(QMouseEvent*)
() at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#65 0x00007f3a8f2b3c90 in  () at
/lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
#66 0x00007f3a9098c3ff in
KWin::EffectsHandlerImpl::checkInputWindowEvent(QMouseEvent*) () at
/lib/x86_64-linux-gnu/libkwin.so.5
#67 0x00007f3a840840bc in  () at
/usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kwin.platforms/KWinX11Platform.so
#68 0x00007f3a9091e2c9 in KWin::Workspace::workspaceEvent(xcb_generic_event_t*)
() at /lib/x86_64-linux-gnu/libkwin.so.5
#69 0x00007f3a8f791b8f in
QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#70 0x00007f3a85c39cb0 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*)
() at /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#71 0x00007f3a85c3a843 in QXcbConnection::processXcbEvents() () at
/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#72 0x00007f3a8f7bdb42 in QObject::event(QEvent*) () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#73 0x00007f3a9010c491 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#74 0x00007f3a90113ad0 in QApplication::notify(QObject*, QEvent*) () at
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#75 0x00007f3a8f794039 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib/x86_64-linux-gnu/libQt5Core.so.5
#76 0x00007f3a8f79702b in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#77 0x00007f3a8f7e2ffb in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#78 0x00007f3a85ccbaed in  () at /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#79 0x00007f3a8f792d0b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#80 0x00007f3a8f79ae82 in QCoreApplication::exec() () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#81 0x00007f3a90cc947b in kdemain () at
/lib/x86_64-linux-gnu/libkdeinit5_kwin_x11.so
#82 0x00007f3a90b24b17 in __libc_start_main (main=0x55735c52f050, argc=1,
argv=0x7fff339cbf18, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fff339cbf08) at ../csu/libc-start.c:310
#83 0x000055735c52f08a in _start ()

Reported using DrKonqi

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