https://bugs.kde.org/show_bug.cgi?id=357435

            Bug ID: 357435
           Summary: Plasma Crash on attempting to change desktop settings
           Product: plasmashell
           Version: 5.5.2
          Platform: Archlinux Packages
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: k...@davidedmundson.co.uk
          Reporter: vishn...@gmail.com
                CC: bhus...@gmail.com, plasma-b...@kde.org

Application: plasmashell (5.5.2)

Qt Version: 5.5.1
Operating System: Linux 4.1.15-1-MANJARO x86_64
Distribution: "Manjaro Linux"

-- Information about the crash:
- What I was doing when the application crashed:
Meta+Tab > Settings (of the 'Default' desktop) > Others

- Unusual behavior I noticed:
Plasma Shell immediately crashes and restarts.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fad49eb4800 (LWP 804))]

Thread 18 (Thread 0x7fad34f40700 (LWP 805)):
#0  0x00007fad444f618d in poll () from /usr/lib/libc.so.6
#1  0x00007fad4865aae2 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007fad4865c757 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007fad3665b379 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 17 (Thread 0x7fad2e60f700 (LWP 945)):
#0  0x00007fad414b5614 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007fad41470540 in g_main_context_prepare () from
/usr/lib/libglib-2.0.so.0
#2  0x00007fad41470eeb in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007fad414710cc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#4  0x00007fad44e1956b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#5  0x00007fad44dc057a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#6  0x00007fad44bdcbe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007fad474f1055 in ?? () from /usr/lib/libQt5Qml.so.5
#8  0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 16 (Thread 0x7fad231a3700 (LWP 947)):
#0  0x00007fad444f618d in poll () from /usr/lib/libc.so.6
#1  0x00007fad41470fbc in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fad414710cc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007fad44e1956b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007fad44dc057a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007fad44bdcbe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007fad474f1055 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 15 (Thread 0x7fad217b4700 (LWP 950)):
#0  0x00007fad4146dfe0 in ?? () from /usr/lib/libglib-2.0.so.0
#1  0x00007fad414704eb in g_main_context_prepare () from
/usr/lib/libglib-2.0.so.0
#2  0x00007fad41470eeb in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007fad414710cc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#4  0x00007fad44e1956b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#5  0x00007fad44dc057a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#6  0x00007fad44bdcbe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007fad474f1055 in ?? () from /usr/lib/libQt5Qml.so.5
#8  0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 14 (Thread 0x7fad1bdf7700 (LWP 961)):
#0  0x00007fad43d0407f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fad49916934 in ?? () from /usr/lib/libQt5Script.so.5
#2  0x00007fad49916979 in ?? () from /usr/lib/libQt5Script.so.5
#3  0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 13 (Thread 0x7fad18bd4700 (LWP 977)):
#0  0x00007fad49e96589 in __tls_get_addr () from /lib64/ld-linux-x86-64.so.2
#1  0x00007fad44be0ad2 in ?? () from /usr/lib/libQt5Core.so.5
#2  0x00007fad44e18db1 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007fad414709f1 in g_main_context_check () from
/usr/lib/libglib-2.0.so.0
#4  0x00007fad41470f60 in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007fad414710cc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#6  0x00007fad44e1956b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#7  0x00007fad44dc057a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#8  0x00007fad44bdcbe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#9  0x00007fad47ea0136 in ?? () from /usr/lib/libQt5Quick.so.5
#10 0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#11 0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 12 (Thread 0x7fac821c6700 (LWP 1171)):
#0  0x00007fad444f618d in poll () from /usr/lib/libc.so.6
#1  0x00007fad41470fbc in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fad414710cc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007fad44e1956b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007fad44dc057a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007fad44bdcbe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007fac846e7bc7 in KCupsConnection::run() () from
/usr/lib/libkcupslib.so
#7  0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 11 (Thread 0x7fac798b5700 (LWP 1873)):
#0  0x00007fad43d0407f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fad44be2e2b in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/libQt5Core.so.5
#2  0x00007fac8d1a837f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () from /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007fac8d1acb28 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007fac8d1acb82 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007fac8d1aa3c3 in ThreadWeaver::Thread::run() () from
/usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 10 (Thread 0x7fac6fde9700 (LWP 1874)):
#0  0x00007fad43d0407f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fad44be2e2b in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/libQt5Core.so.5
#2  0x00007fac8d1a837f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () from /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007fac8d1acb28 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007fac8d1acb82 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007fac8d1acb82 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007fac8d1acb82 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007fac8d1aa3c3 in ThreadWeaver::Thread::run() () from
/usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#13 0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#14 0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 9 (Thread 0x7fac6f5e8700 (LWP 1875)):
#0  0x00007fad43d0407f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fad44be2e2b in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/libQt5Core.so.5
#2  0x00007fac8d1a837f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () from /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007fac8d1acb28 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007fac8d1acb82 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007fac8d1acb82 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007fac8d1acb82 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007fac8d1acb82 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#13 0x00007fac8d1aa3c3 in ThreadWeaver::Thread::run() () from
/usr/lib/libKF5ThreadWeaver.so.5
#14 0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#15 0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#16 0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7fac6ede7700 (LWP 1876)):
#0  0x00007fad43d0407f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fad44be2e2b in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/libQt5Core.so.5
#2  0x00007fac8d1a837f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () from /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007fac8d1acb28 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007fac8d1acb82 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007fac8d1aa3c3 in ThreadWeaver::Thread::run() () from
/usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7fac6e5e6700 (LWP 1877)):
#0  0x00007fad43d0407f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fad44be2e2b in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/libQt5Core.so.5
#2  0x00007fac8d1a837f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () from /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007fac8d1acb28 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007fac8d1acb82 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007fac8d1aa3c3 in ThreadWeaver::Thread::run() () from
/usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7fac6dde5700 (LWP 1878)):
#0  0x00007fad43d0407f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fad44be2e2b in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/libQt5Core.so.5
#2  0x00007fac8d1a837f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () from /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007fac8d1acb28 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007fac8d1acb82 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007fac8d1aa3c3 in ThreadWeaver::Thread::run() () from
/usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7fac6d5e4700 (LWP 1879)):
#0  0x00007fad43d0407f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fad44be2e2b in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/libQt5Core.so.5
#2  0x00007fac8d1a837f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () from /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007fac8d1acb28 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007fac8d1acb82 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007fac8d1aa3c3 in ThreadWeaver::Thread::run() () from
/usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7fac6cde3700 (LWP 1880)):
#0  0x00007fad43d0407f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007fad44be2e2b in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/libQt5Core.so.5
#2  0x00007fac8d1a837f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () from /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007fac8d1acb28 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007fac8d1acb82 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007fac8d1a7433 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007fac8d1aa3c3 in ThreadWeaver::Thread::run() () from
/usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7fab0f200700 (LWP 6574)):
#0  0x00007fad414b5614 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007fad41470540 in g_main_context_prepare () from
/usr/lib/libglib-2.0.so.0
#2  0x00007fad41470eeb in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007fad414710cc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#4  0x00007fad44e1956b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#5  0x00007fad44dc057a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#6  0x00007fad44bdcbe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007fad474f1055 in ?? () from /usr/lib/libQt5Qml.so.5
#8  0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7fab063df700 (LWP 6575)):
#0  0x00007fad444f216d in read () from /usr/lib/libc.so.6
#1  0x00007fad414b4270 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fad41470aa4 in g_main_context_check () from
/usr/lib/libglib-2.0.so.0
#3  0x00007fad41470f60 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007fad414710cc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#5  0x00007fad44e1956b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#6  0x00007fad44dc057a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#7  0x00007fad44bdcbe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007fad474f1055 in ?? () from /usr/lib/libQt5Qml.so.5
#9  0x00007fad44be1b8e in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007fad43cfe4a4 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fad444ff13d in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7fad49eb4800 (LWP 804)):
[KCrash Handler]
#5  0x00007fad4747b2b0 in QQmlBoundSignalExpression::function() const () from
/usr/lib/libQt5Qml.so.5
#6  0x00007fad4747b360 in QQmlBoundSignalExpression::sourceLocation() const ()
from /usr/lib/libQt5Qml.so.5
#7  0x00007fad4745b1b8 in QQmlData::destroyed(QObject*) () from
/usr/lib/libQt5Qml.so.5
#8  0x00007fad44df93d4 in QObject::~QObject() () from /usr/lib/libQt5Core.so.5
#9  0x00007fad47f32ead in QQuickItem::~QQuickItem() () from
/usr/lib/libQt5Quick.so.5
#10 0x00007fad47f4ced6 in ?? () from /usr/lib/libQt5Quick.so.5
#11 0x00007fad44def84b in QObjectPrivate::deleteChildren() () from
/usr/lib/libQt5Core.so.5
#12 0x00007fad44df95d0 in QObject::~QObject() () from /usr/lib/libQt5Core.so.5
#13 0x00007fad47f32ead in QQuickItem::~QQuickItem() () from
/usr/lib/libQt5Quick.so.5
#14 0x00007fad47f4d616 in ?? () from /usr/lib/libQt5Quick.so.5
#15 0x00007fad44def84b in QObjectPrivate::deleteChildren() () from
/usr/lib/libQt5Core.so.5
#16 0x00007fad44df95d0 in QObject::~QObject() () from /usr/lib/libQt5Core.so.5
#17 0x00007fad47f32ead in QQuickItem::~QQuickItem() () from
/usr/lib/libQt5Quick.so.5
#18 0x00007fad47f4d616 in ?? () from /usr/lib/libQt5Quick.so.5
#19 0x00007fad44def84b in QObjectPrivate::deleteChildren() () from
/usr/lib/libQt5Core.so.5
#20 0x00007fad44df95d0 in QObject::~QObject() () from /usr/lib/libQt5Core.so.5
#21 0x00007fad47f32ead in QQuickItem::~QQuickItem() () from
/usr/lib/libQt5Quick.so.5
#22 0x00007fad47f4d616 in ?? () from /usr/lib/libQt5Quick.so.5
#23 0x00007fad47530f8b in QQmlDelegateModel::~QQmlDelegateModel() () from
/usr/lib/libQt5Qml.so.5
#24 0x00007fad475310e9 in QQmlDelegateModel::~QQmlDelegateModel() () from
/usr/lib/libQt5Qml.so.5
#25 0x00007fad47fc4036 in ?? () from /usr/lib/libQt5Quick.so.5
#26 0x00007fad47fc4049 in ?? () from /usr/lib/libQt5Quick.so.5
#27 0x00007fad44df9618 in QObject::~QObject() () from /usr/lib/libQt5Core.so.5
#28 0x00007fad47f32ead in QQuickItem::~QQuickItem() () from
/usr/lib/libQt5Quick.so.5
#29 0x00007fad47f4e176 in ?? () from /usr/lib/libQt5Quick.so.5
#30 0x00007fad44def84b in QObjectPrivate::deleteChildren() () from
/usr/lib/libQt5Core.so.5
#31 0x00007fad44df95d0 in QObject::~QObject() () from /usr/lib/libQt5Core.so.5
#32 0x00007fad47f32ead in QQuickItem::~QQuickItem() () from
/usr/lib/libQt5Quick.so.5
#33 0x00007fad47f4ca7e in ?? () from /usr/lib/libQt5Quick.so.5
#34 0x00007fad44def84b in QObjectPrivate::deleteChildren() () from
/usr/lib/libQt5Core.so.5
#35 0x00007fad44df95d0 in QObject::~QObject() () from /usr/lib/libQt5Core.so.5
#36 0x00007fad47f32ead in QQuickItem::~QQuickItem() () from
/usr/lib/libQt5Quick.so.5
#37 0x00007fad47f4cd46 in ?? () from /usr/lib/libQt5Quick.so.5
#38 0x00007fad44def84b in QObjectPrivate::deleteChildren() () from
/usr/lib/libQt5Core.so.5
#39 0x00007fad44df95d0 in QObject::~QObject() () from /usr/lib/libQt5Core.so.5
#40 0x00007fad47f32ead in QQuickItem::~QQuickItem() () from
/usr/lib/libQt5Quick.so.5
#41 0x00007fad47f4ced6 in ?? () from /usr/lib/libQt5Quick.so.5
#42 0x00007fad44def84b in QObjectPrivate::deleteChildren() () from
/usr/lib/libQt5Core.so.5
#43 0x00007fad44df95d0 in QObject::~QObject() () from /usr/lib/libQt5Core.so.5
#44 0x00007fad47f32ead in QQuickItem::~QQuickItem() () from
/usr/lib/libQt5Quick.so.5
#45 0x00007fad47f4d616 in ?? () from /usr/lib/libQt5Quick.so.5
#46 0x00007fad44def84b in QObjectPrivate::deleteChildren() () from
/usr/lib/libQt5Core.so.5
#47 0x00007fad44df95d0 in QObject::~QObject() () from /usr/lib/libQt5Core.so.5
#48 0x00007fad47f32ead in QQuickItem::~QQuickItem() () from
/usr/lib/libQt5Quick.so.5
#49 0x00007fad47f4ced6 in ?? () from /usr/lib/libQt5Quick.so.5
#50 0x00007fad44df2200 in QObject::event(QEvent*) () from
/usr/lib/libQt5Core.so.5
#51 0x00007fad47f3172b in QQuickItem::event(QEvent*) () from
/usr/lib/libQt5Quick.so.5
#52 0x00007fad458c69ac in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/libQt5Widgets.so.5
#53 0x00007fad458cbe86 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#54 0x00007fad44dc2bab in QCoreApplication::notifyInternal(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#55 0x00007fad44dc4fa6 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#56 0x00007fad44e19143 in ?? () from /usr/lib/libQt5Core.so.5
#57 0x00007fad41470dc7 in g_main_context_dispatch () from
/usr/lib/libglib-2.0.so.0
#58 0x00007fad41471020 in ?? () from /usr/lib/libglib-2.0.so.0
#59 0x00007fad414710cc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#60 0x00007fad44e1954f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#61 0x00007fad44dc057a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#62 0x00007fad45ac1acd in QDialog::exec() () from /usr/lib/libQt5Widgets.so.5
#63 0x00007fab0c3d8c7c in ?? () from
/usr/lib/qt/qml/org/kde/activities/settings/libkactivitiessettingsplugin.so
#64 0x00007fad474aef69 in ?? () from /usr/lib/libQt5Qml.so.5
#65 0x00007fad4742d06c in ?? () from /usr/lib/libQt5Qml.so.5
#66 0x00007fad4742e8bc in ?? () from /usr/lib/libQt5Qml.so.5
#67 0x00007fad4742f0cd in QV4::QObjectMethod::callInternal(QV4::CallData*) ()
from /usr/lib/libQt5Qml.so.5
#68 0x00007fad47445aa3 in QV4::Runtime::callProperty(QV4::ExecutionEngine*,
int, QV4::CallData*) () from /usr/lib/libQt5Qml.so.5
#69 0x00007fad21b1d818 in ?? ()
#70 0x0000000000000000 in ?? ()

Possible duplicates by query: bug 357383, bug 357246, bug 357113, bug 356411,
bug 355957.

Reported using DrKonqi

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