Bug 375288

Summary: Plasma freezes and crashes when switching to a new look and feel package
Product: [Plasma] plasmashell Reporter: Lucas <kdeokk>
Component: Global Theme packagesAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal CC: kde, plasma-bugs-null
Priority: NOR    
Version First Reported In: master   
Target Milestone: 1.0   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Lucas 2017-01-19 10:28:45 UTC 
Plasma freezes and crashes when switching to a new look and feel package. I downloaded a new look and feel package from KDE store (United) and switched to it. First I got a freeze, next plasma crashed. I can reproduce it sometimes. 

Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f9ba45c78c0 (LWP 1960))]

Thread 18 (Thread 0x7f9b7a7dd700 (LWP 3741)):
#0  0x00007f9b9eee3b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f9b9a89f39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9b9a89f4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9b9f80e23b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9b9f7b8cea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9b9f5ddfb4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9ba25acaa6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9b9e4886ba in start_thread (arg=0x7f9b7a7dd700) at pthread_create.c:333
#9  0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f9b6da20700 (LWP 3735)):
#0  0x00007f9b9a8e3ae4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9b9a89ed5a in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9b9a89f340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9b9a89f4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9b9f80e23b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9b9f7b8cea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9b9f5ddfb4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9ba1c26675 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9b9e4886ba in start_thread (arg=0x7f9b6da20700) at pthread_create.c:333
#10 0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f9a9e619700 (LWP 3209)):
#0  0x00007f9b9eee3b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f9b9a89f39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9b9a89f4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9b9f80e23b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9b9f7b8cea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9b9f5ddfb4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9b9e4886ba in start_thread (arg=0x7f9a9e619700) at pthread_create.c:333
#8  0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f9aa4e79700 (LWP 3205)):
#0  0x00007f9b9eee3b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f9b9a89f39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9b9a89f4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9b9f80e23b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9b9f7b8cea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9b9f5ddfb4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9b9e4886ba in start_thread (arg=0x7f9aa4e79700) at pthread_create.c:333
#8  0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f9aa7fff700 (LWP 2255)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9b9f5e3a4b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f9ae54c407f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f9ae54c8078 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#17 0x00007f9ae54c5bf0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#18 0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f9b9e4886ba in start_thread (arg=0x7f9aa7fff700) at pthread_create.c:333
#20 0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f9ac8995700 (LWP 2254)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9b9f5e3a4b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f9ae54c407f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f9ae54c8078 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9ae54c5bf0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9b9e4886ba in start_thread (arg=0x7f9ac8995700) at pthread_create.c:333
#10 0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f9ac9196700 (LWP 2253)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9b9f5e3a4b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f9ae54c407f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f9ae54c8078 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f9ae54c5bf0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f9b9e4886ba in start_thread (arg=0x7f9ac9196700) at pthread_create.c:333
#12 0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f9ac9997700 (LWP 2252)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9b9f5e3a4b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f9ae54c407f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f9ae54c8078 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9ae54c5bf0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9b9e4886ba in start_thread (arg=0x7f9ac9997700) at pthread_create.c:333
#10 0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f9aca198700 (LWP 2251)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9b9f5e3a4b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f9ae54c407f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f9ae54c8078 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9ae54c5bf0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9b9e4886ba in start_thread (arg=0x7f9aca198700) at pthread_create.c:333
#10 0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f9aca999700 (LWP 2250)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9b9f5e3a4b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f9ae54c407f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f9ae54c8078 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f9ae54c5bf0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f9b9e4886ba in start_thread (arg=0x7f9aca999700) at pthread_create.c:333
#14 0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f9acb19a700 (LWP 2249)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9b9f5e3a4b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f9ae54c407f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f9ae54c8078 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f9ae54c5bf0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f9b9e4886ba in start_thread (arg=0x7f9acb19a700) at pthread_create.c:333
#16 0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f9acb99b700 (LWP 2248)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9b9f5e3a4b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f9ae54c407f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f9ae54c8078 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9ae54c80d2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9ae54c326d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9ae54c5bf0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9b9e4886ba in start_thread (arg=0x7f9acb99b700) at pthread_create.c:333
#10 0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f9ad8780700 (LWP 2100)):
#0  0x00007f9b9a8e3ae4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9b9a89edc9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9b9a89f340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9b9a89f4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9b9f80e23b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9b9f7b8cea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9b9f5ddfb4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9adac5e587 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#8  0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9b9e4886ba in start_thread (arg=0x7f9ad8780700) at pthread_create.c:333
#10 0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f9b6d21f700 (LWP 2083)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9ba40135c4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f9ba4013609 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f9b9e4886ba in start_thread (arg=0x7f9b6d21f700) at pthread_create.c:333
#4  0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f9b8cb6e700 (LWP 2062)):
#0  0x00007f9b9eee3b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f9b9a89f39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9b9a89f4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9b9f80e23b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9b9f7b8cea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9b9f5ddfb4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9ba1c26675 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9b9e4886ba in start_thread (arg=0x7f9b8cb6e700) at pthread_create.c:333
#9  0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f9b8e5b3700 (LWP 2027)):
#0  0x00007f9b9eee3b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f9b9a89f39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9b9a89f4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9b9f80e23b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9b9f7b8cea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9b9f5ddfb4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9ba47037a5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9b9e4886ba in start_thread (arg=0x7f9b8e5b3700) at pthread_create.c:333
#9  0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f9b8fde7700 (LWP 1977)):
#0  0x00007f9b9eee3b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f9ba2f74c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f9ba2f768d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f9b91f2da39 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f9b9f5e2b98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9b9e4886ba in start_thread (arg=0x7f9b8fde7700) at pthread_create.c:333
#6  0x00007f9b9eeef82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f9ba45c78c0 (LWP 1960)):
[KCrash Handler]
#6  0x00007f9ba2643f00 in QQuickWindow::maybeUpdate() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f9ba263aad4 in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f9ba263ab44 in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f9ba263b091 in QQuickItem::setParentItem(QQuickItem*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f9ba263b68c in QQuickItem::~QQuickItem() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f9ba2656b66 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f9ba1c48311 in QQmlDelegateModel::~QQmlDelegateModel() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007f9ba1c48469 in QQmlDelegateModel::~QQmlDelegateModel() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#14 0x00007f9ba26d04dc in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007f9ba26d0579 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f9b9f7ed4cc in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f9ba263b8f3 in QQuickItem::~QQuickItem() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007f9ba26571b6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007f9b9f7e42e3 in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f9b9f7ed484 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f9ba263b8f3 in QQuickItem::~QQuickItem() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f9ba2655c2e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007f9b9f7e42e3 in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f9b9f7ed484 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f9ba263b8f3 in QQuickItem::~QQuickItem() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#26 0x00007f9ba2656766 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#27 0x00007f9ba413c277 in PlasmaQuick::AppletQuickItem::~AppletQuickItem() () from /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#28 0x00007f9b6fe148f9 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#29 0x00007f9b9f7e42e3 in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f9b9f7ed484 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f9b6fe10774 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#32 0x00007f9ba2ae7982 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Plasma.so.5
#33 0x00007f9ba2ae7ba9 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Plasma.so.5
#34 0x00007f9ba2ad7579 in Plasma::Applet::~Applet() () from /usr/lib/x86_64-linux-gnu/libKF5Plasma.so.5
#35 0x00007f9ba2ad7599 in Plasma::Applet::~Applet() () from /usr/lib/x86_64-linux-gnu/libKF5Plasma.so.5
#36 0x00007f9b9f7e42e3 in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007f9b9f7ed484 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007f9ba2adb5b9 in Plasma::Containment::~Containment() () from /usr/lib/x86_64-linux-gnu/libKF5Plasma.so.5
#39 0x000000000043e0ab in ?? ()
#40 0x00000000004481a8 in ?? ()
#41 0x0000000000473171 in ?? ()
#42 0x00000000004733f3 in ?? ()
#43 0x00007f9ba470fae3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#44 0x00007f9ba47139c8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#45 0x00007f9ba471411b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#46 0x00007f9ba47168de in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#47 0x00007f9b9f7e6a19 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#48 0x00007f9ba00a689c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#49 0x00007f9ba00ae296 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#50 0x00007f9b9f7bacf8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#51 0x00007f9b9f7bd3bb in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#52 0x00007f9b9f80de13 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#53 0x00007f9b9a89f1a7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#54 0x00007f9b9a89f400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#55 0x00007f9b9a89f4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#56 0x00007f9b9f80e21f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#57 0x00007f9b9f7b8cea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#58 0x00007f9b9f7c12fc in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#59 0x000000000041ca28 in ?? ()
#60 0x00007f9b9ee09830 in __libc_start_main (main=0x41bec0, argc=2, argv=0x7ffeb43f9228, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffeb43f9218) at ../csu/libc-start.c:291
#61 0x000000000041cda9 in _start ()

And video showing the issue.
https://youtu.be/ikN19XDdSaE
Comment 1 Kai Uwe Broulik 2017-02-11 09:49:15 UTC 

*** This bug has been marked as a duplicate of bug 375388 ***