Bug 401613

Summary: Plasmashell crashed while setting up the second desktop
Product: [Plasma] plasmashell Reporter: alsoGAMER <deciccomarco71>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED WORKSFORME    
Severity: crash CC: plasma-bugs-null
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.13.5   
Target Milestone: 1.0   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description alsoGAMER 2018-12-01 18:32:59 UTC 
Application: plasmashell (5.13.5)

Qt Version: 5.11.1
Frameworks Version: 5.52.0
Operating System: Linux 4.19.4-200.fc28.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:
Setting up the second desktop on secondary monitor

- Unusual behavior I noticed:
FIrst, kde system settings crash then the entire plasmashell crash

- Custom settings of the application:
Two monitor to use

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4aec4360c0 (LWP 2510))]

Thread 21 (Thread 0x7f49e3be4700 (LWP 2805)):
#0  0x00007f4af653b51c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4af7ebe183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f4afbf387a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007f4afbf38a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7f49e6bab700 (LWP 2803)):
#0  0x00007f4af71e83e9 in poll () at /lib64/libc.so.6
#1  0x00007f4aef88cbc6 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f4aef88ccf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f4af809e2ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f4af804cb7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f4af7eb46b6 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f4afbc22d09 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7f49e599a700 (LWP 2802)):
#0  0x00007f4af653b51c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4af7ebe183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f4afbf387a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007f4afbf38a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f4a21a63700 (LWP 2800)):
#0  0x00007f4afe7cf7c0 in __tls_get_addr () at /lib64/ld-linux-x86-64.so.2
#1  0x00007f4af7ebcf8a in QThreadData::current(bool) () at /lib64/libQt5Core.so.5
#2  0x00007f4af809e18e in postEventSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#3  0x00007f4aef88c5e1 in g_main_context_check () at /lib64/libglib-2.0.so.0
#4  0x00007f4aef88cb70 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#5  0x00007f4aef88ccf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#6  0x00007f4af809e2ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007f4af804cb7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#8  0x00007f4af7eb46b6 in QThread::exec() () at /lib64/libQt5Core.so.5
#9  0x00007f4afbc22d09 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#10 0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#11 0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f4a22264700 (LWP 2799)):
#0  0x00007f4af653b51c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4af7ebe183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f4afbf387a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007f4afbf38a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f49f5b9d700 (LWP 2788)):
#0  0x00007f4af653b51c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4af7ebe183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f4a3d730700 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007f4a3d73482c in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007f4a3d72f791 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007f4a3d732711 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f49f639e700 (LWP 2787)):
#0  0x00007f4af653b51c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4af7ebe183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f4a3d730700 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007f4a3d73482c in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007f4a3d72f791 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007f4a3d73488a in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f4a3d72f791 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f4a3d732711 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f49f6b9f700 (LWP 2786)):
#0  0x00007f4af653b51c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4af7ebe183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f4a3d730700 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007f4a3d73482c in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007f4a3d72f791 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007f4a3d73488a in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f4a3d72f791 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f4a3d732711 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f49f73a0700 (LWP 2785)):
#0  0x00007f4af653b51c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4af7ebe183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f4a3d730700 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007f4a3d73482c in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007f4a3d72f791 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007f4a3d73488a in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f4a3d72f791 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f4a3d732711 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f4a0d059700 (LWP 2781)):
#0  0x00007f4af653b51c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4af7ebe183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f4afbf387a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007f4afbf38a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f4a0f43a700 (LWP 2775)):
#0  0x00007f4af653b51c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4af7ebe183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f4afbf387a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007f4afbf38a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f4a0fdf4700 (LWP 2770)):
#0  0x00007f4af653b51c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4af7ebe183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f4afbf387a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007f4afbf38a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f4a22f75700 (LWP 2697)):
#0  0x00007f4af653b51c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4af7ebe183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f4afbf387a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007f4afbf38a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f4a28d47700 (LWP 2694)):
#0  0x00007f4af71e83e9 in poll () at /lib64/libc.so.6
#1  0x00007f4aef88cbc6 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f4aef88ccf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f4af809e2ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f4af804cb7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f4af7eb46b6 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f4a3f7ff700 (LWP 2687)):
#0  0x00007f4af71e83e9 in poll () at /lib64/libc.so.6
#1  0x00007f4aef88cbc6 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f4aef88ccf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f4af809e2ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f4af804cb7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f4af7eb46b6 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f4afbeb7a4a in QQuickPixmapReader::run() () at /lib64/libQt5Quick.so.5
#7  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f4a44d98700 (LWP 2686)):
#0  0x00007f4af653b51c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4af7ebe183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f4afbf387a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007f4afbf38a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f4a46717700 (LWP 2685)):
#0  0x00007f4af653b51c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4af7ebe183 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007f4afbf387a9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#3  0x00007f4afbf38a0a in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#4  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f4ad5e0b700 (LWP 2682)):
#0  0x00007f4af653b51c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4afe24d9ba in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007f4afe24da25 in  () at /lib64/libQt5Script.so.5
#3  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f4ad7fff700 (LWP 2573)):
#0  0x00007f4aef889b70 in g_source_iter_clear () at /lib64/libglib-2.0.so.0
#1  0x00007f4aef88c550 in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x00007f4aef88cb70 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f4aef88ccf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f4af809e2ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f4af804cb7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f4af7eb46b6 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f4afbc22d09 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f4addebf700 (LWP 2528)):
#0  0x00007f4af71e3e54 in read () at /lib64/libc.so.6
#1  0x00007f4aef8d20f0 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x00007f4aef88c6bb in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f4aef88cb70 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007f4aef88ccf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007f4af809e2ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f4af804cb7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007f4af7eb46b6 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007f4af9b807b9 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#9  0x00007f4af7ebdb4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#10 0x00007f4af6535594 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f4af71f2e6f in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f4aec4360c0 (LWP 2510)):
[KCrash Handler]
#6  0x0000000000000020 in  ()
#7  0x00007f4afc4998a2 in Plasma::DataEngineManager::~DataEngineManager() () at /lib64/libKF5Plasma.so.5
#8  0x00007f4afc499a0d in Plasma::(anonymous namespace)::Q_QGS_privateDataEngineManagerSelf::innerFunction()::Holder::~Holder() () at /lib64/libKF5Plasma.so.5
#9  0x00007f4af71325ec in __run_exit_handlers () at /lib64/libc.so.6
#10 0x00007f4af713271c in  () at /lib64/libc.so.6
#11 0x00007f4adfb8f3d2 in  () at /lib64/libQt5WaylandClient.so.5
#12 0x00007f4adfb8f436 in QtWaylandClient::QWaylandDisplay::flushRequests() () at /lib64/libQt5WaylandClient.so.5
#13 0x00007f4af8075e1e in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#14 0x00007f4af809e348 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#15 0x00007f4adfbc97d5 in QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5WaylandClient.so.5
#16 0x00007f4af804cb7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#17 0x00007f4af8054c46 in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#18 0x000055f5a0898e5f in main ()

Reported using DrKonqi
Comment 1 David Edmundson 2018-12-01 18:35:50 UTC 
>#7  0x00007f4afc4998a2 in Plasma::DataEngineManager::~DataEngineManager() () at /lib64/libKF5Plasma.so.5

There's a crash here, but we're exiting anyway from:

#9  0x00007f4af71325ec in __run_exit_handlers () at /lib64/libc.so.6

wayland backend clearly asserted, there should be a message why on the command line. Can you reproduce? Also can you run 

WAYLAND_DEBUG=1 plasmashell --replace

and include output here when you do
Comment 2 David Edmundson 2018-12-01 18:38:26 UTC 
marking as needsinfo, I can't do much on the real bug without traces
Comment 3 Bug Janitor Service 2018-12-16 03:44:19 UTC 
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 4 Bug Janitor Service 2018-12-31 03:44:27 UTC 
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!