Bug 373619

Summary: Plasma crash on undock (screen disconnect)
Product: [Plasma] plasmashell Reporter: Hubert Kario <hkario>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED FIXED    
Severity: crash CC: bshah, notmart, plasma-bugs-null
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.7.5   
Target Milestone: 1.0   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Hubert Kario 2016-12-13 17:25:55 UTC 
Application: plasmashell (5.7.5)

Qt Version: 5.6.1
Frameworks Version: 5.27.0
Operating System: Linux 4.8.10-200.fc24.x86_64 x86_64
Distribution: "Fedora release 24 (Twenty Four)"

-- Information about the crash:
- What I was doing when the application crashed:
I removed the laptop from the docking station. Happens nearly every time I undock (only occasionally it doesn't crash)

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
84	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f74ed669940 (LWP 3602))]

Thread 18 (Thread 0x7f7401ffb700 (LWP 4368)):
#0  0x00007f74fb3bcbd0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x55daa68d9d20) at thread/qwaitcondition_unix.cpp:136
#2  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x55daa68d9d00, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f743d9ba8c0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007f743d9bea78 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#10 0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#11 0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#12 0x00007f743d9bc909 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#13 0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x55daa6212730) at thread/qthread_unix.cpp:341
#14 0x00007f74fb3b75ca in start_thread (arg=0x7f7401ffb700) at pthread_create.c:333
#15 0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f74027fc700 (LWP 4367)):
#0  0x00007f74fb3bcbd0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x55daa68d9d20) at thread/qwaitcondition_unix.cpp:136
#2  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x55daa68d9d00, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f743d9ba8c0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007f743d9bea78 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f743d9bc909 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x55daa6211420) at thread/qthread_unix.cpp:341
#10 0x00007f74fb3b75ca in start_thread (arg=0x7f74027fc700) at pthread_create.c:333
#11 0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f7402ffd700 (LWP 4366)):
#0  0x00007f74fb3bcbd0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x55daa68d9d20) at thread/qwaitcondition_unix.cpp:136
#2  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x55daa68d9d00, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f743d9ba8c0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007f743d9bea78 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f743d9bc909 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x7f73f00027d0) at thread/qthread_unix.cpp:341
#10 0x00007f74fb3b75ca in start_thread (arg=0x7f7402ffd700) at pthread_create.c:333
#11 0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f74037fe700 (LWP 4365)):
#0  0x00007f74fb3bcbd0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x55daa68d9d20) at thread/qwaitcondition_unix.cpp:136
#2  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x55daa68d9d00, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f743d9ba8c0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007f743d9bea78 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f743d9bc909 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x55daa683ffc0) at thread/qthread_unix.cpp:341
#10 0x00007f74fb3b75ca in start_thread (arg=0x7f74037fe700) at pthread_create.c:333
#11 0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f7403fff700 (LWP 4364)):
#0  0x00007f74fb3bcbd0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x55daa68d9d20) at thread/qwaitcondition_unix.cpp:136
#2  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x55daa68d9d00, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f743d9ba8c0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007f743d9bea78 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f743d9bc909 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x55daa333cc00) at thread/qthread_unix.cpp:341
#10 0x00007f74fb3b75ca in start_thread (arg=0x7f7403fff700) at pthread_create.c:333
#11 0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f7408b5c700 (LWP 4363)):
#0  0x00007f74fb3bcbd0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x55daa68d9d20) at thread/qwaitcondition_unix.cpp:136
#2  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x55daa68d9d00, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f743d9ba8c0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007f743d9bea78 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f743d9bc909 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x7f73fc003190) at thread/qthread_unix.cpp:341
#10 0x00007f74fb3b75ca in start_thread (arg=0x7f7408b5c700) at pthread_create.c:333
#11 0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f740935d700 (LWP 4362)):
#0  0x00007f74fb3bcbd0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x55daa68d9d20) at thread/qwaitcondition_unix.cpp:136
#2  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x55daa68d9d00, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f743d9ba8c0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007f743d9bea78 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#10 0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#11 0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#12 0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#13 0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#14 0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#15 0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#16 0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#17 0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#18 0x00007f743d9bc909 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#19 0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x55daa68d5a60) at thread/qthread_unix.cpp:341
#20 0x00007f74fb3b75ca in start_thread (arg=0x7f740935d700) at pthread_create.c:333
#21 0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f7409b5e700 (LWP 4361)):
#0  0x00007f74fb3bcbd0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x55daa68d9d20) at thread/qwaitcondition_unix.cpp:136
#2  0x00007f74fcc7401a in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x55daa68d9d00, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f743d9ba8c0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007f743d9bea78 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#10 0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#11 0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#12 0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#13 0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#14 0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#15 0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#16 0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#17 0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#18 0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#19 0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#20 0x00007f743d9bead2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#21 0x00007f743d9b9a3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#22 0x00007f743d9bc909 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#23 0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x55daa6216b40) at thread/qthread_unix.cpp:341
#24 0x00007f74fb3b75ca in start_thread (arg=0x7f7409b5e700) at pthread_create.c:333
#25 0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f74255a1700 (LWP 4218)):
#0  0x00007f74f77b9a00 in g_source_iter_next () at /lib64/libglib-2.0.so.0
#1  0x00007f74f77bbefb in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007f74f77bc92b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f74f77bcb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f74fce6124b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f74140008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f74fce105ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f74255a0c40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f74fcc6f343 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f7426d402e7 in KCupsConnection::run() () at /lib64/libkcupslib.so
#8  0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x55daa4e93770) at thread/qthread_unix.cpp:341
#9  0x00007f74fb3b75ca in start_thread (arg=0x7f74255a1700) at pthread_create.c:333
#10 0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f742dbce700 (LWP 4174)):
#0  0x00007f74f7800a24 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007f74f77bbf4c in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007f74f77bc92b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f74f77bcb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f74fce6124b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f74200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f74fce105ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f742dbcdc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f74fcc6f343 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x55daa43dcf50) at thread/qthread_unix.cpp:341
#8  0x00007f74fb3b75ca in start_thread (arg=0x7f742dbce700) at pthread_create.c:333
#9  0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f742e3cf700 (LWP 4172)):
#0  0x00007f74f7800a24 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007f74f77bc9fa in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f74f77bcb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f74fce6124b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f74280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f74fce105ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f742e3cec80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f74fcc6f343 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x55daa43ddf60) at thread/qthread_unix.cpp:341
#7  0x00007f74fb3b75ca in start_thread (arg=0x7f742e3cf700) at pthread_create.c:333
#8  0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f7446951700 (LWP 3974)):
#0  0x00007f74fcc6c959 in QMutex::unlock() (__m2=<optimized out>, __m1=std::memory_order_release, __p2=0x0, __p1=@0x7f74469509b8: 0x1, this=0x55daa1086888) at /usr/include/c++/6.1.1/bits/atomic_base.h:752
#1  0x00007f74fcc6c959 in QMutex::unlock() (__m=std::memory_order_release, __p2=0x0, __p1=@0x7f74469509b8: 0x1, this=0x55daa1086888) at /usr/include/c++/6.1.1/atomic:475
#2  0x00007f74fcc6c959 in QMutex::unlock() (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=...) at ../../src/corelib/arch/qatomic_cxx11.h:167
#3  0x00007f74fcc6c959 in QMutex::unlock() (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, this=0x55daa1086888) at ../../src/corelib/thread/qbasicatomic.h:278
#4  0x00007f74fcc6c959 in QMutex::unlock() (current=<synthetic pointer>, this=0x55daa1086888) at thread/qmutex.h:85
#5  0x00007f74fcc6c959 in QMutex::unlock() (this=this@entry=0x55daa1086888) at thread/qmutex.cpp:271
#6  0x00007f74fce60fe1 in postEventSourcePrepare(GSource*, gint*) (this=<synthetic pointer>) at ../../src/corelib/thread/qmutex.h:138
#7  0x00007f74fce60fe1 in postEventSourcePrepare(GSource*, gint*) (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../src/corelib/thread/qmutex.h:132
#8  0x00007f74fce60fe1 in postEventSourcePrepare(GSource*, gint*) (this=0x55daa1086860) at ../../src/corelib/thread/qthread_p.h:246
#9  0x00007f74fce60fe1 in postEventSourcePrepare(GSource*, gint*) (s=0x7f74400012d0, timeout=0x7f7446950a44) at kernel/qeventdispatcher_glib.cpp:253
#10 0x00007f74f77bbf59 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#11 0x00007f74f77bc92b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#12 0x00007f74f77bcb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#13 0x00007f74fce6124b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f74400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#14 0x00007f74fce105ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f7446950c10, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#15 0x00007f74fcc6f343 in QThread::exec() (this=this@entry=0x55daa10862a0) at thread/qthread.cpp:500
#16 0x00007f7500910c66 in QQuickPixmapReader::run() (this=0x55daa10862a0) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/quick/util/qquickpixmapcache.cpp:817
#17 0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x55daa10862a0) at thread/qthread_unix.cpp:341
#18 0x00007f74fb3b75ca in start_thread (arg=0x7f7446951700) at pthread_create.c:333
#19 0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f74d187b700 (LWP 3807)):
#0  0x00007f74fb3bcbd0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f75027a6bc4 in QTWTF::TCMalloc_PageHeap::scavengerThread() (this=0x7f7502892380 <QTWTF::pageheap_memory>) at /usr/src/debug/qtscript-opensource-src-5.6.1/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f75027a6c09 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) (context=<optimized out>) at /usr/src/debug/qtscript-opensource-src-5.6.1/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f74fb3b75ca in start_thread (arg=0x7f74d187b700) at pthread_create.c:333
#4  0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f74d35c0700 (LWP 3679)):
#0  0x00007f74fc05b56d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f74f77bca06 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f74f77bcb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f74fce6124b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f74cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f74fce105ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f74d35bfc60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f74fcc6f343 in QThread::exec() (this=this@entry=0x55daa0a49180) at thread/qthread.cpp:500
#6  0x00007f74fff878f5 in QQmlThreadPrivate::run() (this=0x55daa0a49180) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x55daa0a49180) at thread/qthread_unix.cpp:341
#8  0x00007f74fb3b75ca in start_thread (arg=0x7f74d35c0700) at pthread_create.c:333
#9  0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f74e107d700 (LWP 3634)):
#0  0x00007f74f7800a09 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x00007f74f77bcb08 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#2  0x00007f74fce6124b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f74d80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#3  0x00007f74fce105ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f74e107cc60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f74fcc6f343 in QThread::exec() (this=this@entry=0x55daa08e58f0) at thread/qthread.cpp:500
#5  0x00007f74fff878f5 in QQmlThreadPrivate::run() (this=0x55daa08e58f0) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/ftw/qqmlthread.cpp:141
#6  0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x55daa08e58f0) at thread/qthread_unix.cpp:341
#7  0x00007f74fb3b75ca in start_thread (arg=0x7f74e107d700) at pthread_create.c:333
#8  0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f74e2ac3700 (LWP 3618)):
#0  0x00007f74f7800a09 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x00007f74f77bc42c in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x00007f74f77bc9a4 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f74f77bcb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f74fce6124b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f74d40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f74fce105ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f74e2ac2c40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f74fcc6f343 in QThread::exec() (this=this@entry=0x7f74fd5d2060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:500
#7  0x00007f74fd55d559 in QDBusConnectionManager::run() (this=0x7f74fd5d2060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:189
#8  0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x7f74fd5d2060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:341
#9  0x00007f74fb3b75ca in start_thread (arg=0x7f74e2ac3700) at pthread_create.c:333
#10 0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f74e40b4700 (LWP 3614)):
#0  0x00007f74fc05b56d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f75010cdf80 in _xcb_conn_wait (__timeout=-1, __nfds=1, __fds=0x7f74e40b3b80) at /usr/include/bits/poll2.h:46
#2  0x00007f75010cdf80 in _xcb_conn_wait (c=c@entry=0x55daa0867fd0, cond=cond@entry=0x55daa0868010, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:459
#3  0x00007f75010cfb79 in xcb_wait_for_event (c=0x55daa0867fd0) at xcb_in.c:693
#4  0x00007f74e6bf0da9 in QXcbEventReader::run() (this=0x55daa08725a0) at qxcbconnection.cpp:1325
#5  0x00007f74fcc7399a in QThreadPrivate::start(void*) (arg=0x55daa08725a0) at thread/qthread_unix.cpp:341
#6  0x00007f74fb3b75ca in start_thread (arg=0x7f74e40b4700) at pthread_create.c:333
#7  0x00007f74fc0670ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f74ed669940 (LWP 3602)):
[KCrash Handler]
#6  0x00007f75009a8500 in QQuickWindow::maybeUpdate() (this=0x8) at /usr/include/qt5/QtCore/qscopedpointer.h:135
#7  0x00007f75009a8500 in QQuickWindow::maybeUpdate() (p=...) at /usr/include/qt5/QtCore/qglobal.h:1014
#8  0x00007f75009a8500 in QQuickWindow::maybeUpdate() (this=0x0) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/quick/items/qquickwindow.h:66
#9  0x00007f75009a8500 in QQuickWindow::maybeUpdate() (this=0x0) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/quick/items/qquickwindow.cpp:3080
#10 0x00007f75009a8559 in QQuickWindowPrivate::dirtyItem(QQuickItem*) (this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/quick/items/qquickwindow.cpp:993
#11 0x00007f7500993c72 in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) (this=<optimized out>, type=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/quick/items/qquickitem.cpp:5816
#12 0x00007f7500999225 in QQuickItemPrivate::refFromEffectItem(bool) (this=0x55daa5363530, hide=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/quick/items/qquickitem.cpp:5855
#13 0x00007f7500a990c8 in QQuickShaderEffectSource::setSourceItem(QQuickItem*) (this=0x55daa28c38f0, item=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/quick/items/qquickshadereffectsource.cpp:340
#14 0x00007f7500b094ec in QQuickShaderEffectSource::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=_o@entry=0x55daa28c38f0, _c=_c@entry=QMetaObject::WriteProperty, _id=_id@entry=1, _a=_a@entry=0x7ffdc4db8d80) at .moc/moc_qquickshadereffectsource_p.cpp:337
#15 0x00007f7500b0980b in QQuickShaderEffectSource::qt_metacall(QMetaObject::Call, int, void**) (this=0x55daa28c38f0, _c=QMetaObject::WriteProperty, _id=1, _a=0x7ffdc4db8d80) at .moc/moc_qquickshadereffectsource_p.cpp:391
#16 0x00007f74fff04385 in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyPrivate::WriteFlag>) (object=object@entry=0x55daa28c38f0, property=..., value=..., context=context@entry=0x55daa7ea9470, flags=...) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlproperty.cpp:1274
#17 0x00007f74fff06003 in QQmlPropertyPrivate::writeValueProperty(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyPrivate::WriteFlag>) (object=0x55daa28c38f0, core=..., value=..., context=0x55daa7ea9470, flags=...) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlproperty.cpp:1176
#18 0x00007f74fff72b4e in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) (this=this@entry=0x55daa78b8d20, core=..., result=..., isUndefined=<optimized out>, flags=...) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlbinding.cpp:327
#19 0x00007f74fff73aa7 in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) (this=0x55daa78b8d20, flags=...) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlbinding.cpp:191
#20 0x00007f74fff7d615 in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) (this=0x55daa86fb070, interrupt=...) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlobjectcreator.cpp:1193
#21 0x00007f74fff0bd72 in QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&) (this=0x55daa7bcdfb0, i=...) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlincubator.cpp:348
#22 0x00007f74fff0c974 in QQmlIncubationController::incubateFor(int) (this=this@entry=0x55daa0b1a360, msecs=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlincubator.cpp:395
#23 0x00007f7500c0670c in KDeclarative::QmlObjectIncubationController::incubatingObjectCountChanged(int) (this=0x55daa0b1a350) at /usr/src/debug/kdeclarative-5.27.0/src/kdeclarative/private/qmlobject_p.h:63
#24 0x00007f7500c0670c in KDeclarative::QmlObjectIncubationController::incubatingObjectCountChanged(int) (this=0x55daa0b1a350, count=1) at /usr/src/debug/kdeclarative-5.27.0/src/kdeclarative/private/qmlobject_p.h:79
#25 0x00007f74fff0c782 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) (this=this@entry=0x55daa0a360f0, i=..., forContext=forContext@entry=0x55daa130ecc0) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlincubator.cpp:97
#26 0x00007f74fff07908 in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) (this=<optimized out>, incubator=..., context=<optimized out>, forContext=forContext@entry=0x0) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlcomponent.cpp:1059
#27 0x00007f7500a52f3f in QQuickLoaderPrivate::_q_sourceLoaded() (this=this@entry=0x55daa6dd50b0) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/quick/items/qquickloader.cpp:715
#28 0x00007f7500a530e8 in QQuickLoaderPrivate::load() (this=0x55daa6dd50b0) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/quick/items/qquickloader.cpp:597
#29 0x00007f7500a534b8 in QQuickLoader::setActive(bool) (this=0x55daa6dd5080, newVal=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/quick/items/qquickloader.cpp:334
#30 0x00007f7500a53c10 in QQuickLoader::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=_o@entry=0x55daa6dd5080, _c=_c@entry=QMetaObject::WriteProperty, _id=_id@entry=0, _a=_a@entry=0x7ffdc4db95b0) at .moc/moc_qquickloader_p.cpp:256
#31 0x00007f7500a53d7b in QQuickLoader::qt_metacall(QMetaObject::Call, int, void**) (this=0x55daa6dd5080, _c=QMetaObject::WriteProperty, _id=0, _a=0x7ffdc4db95b0) at .moc/moc_qquickloader_p.cpp:309
#32 0x00007f74fff04b22 in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyPrivate::WriteFlag>) (object=object@entry=0x55daa6dd5080, property=..., value=..., context=context@entry=0x55daa6d85180, flags=...) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlproperty.cpp:1252
#33 0x00007f74fff06003 in QQmlPropertyPrivate::writeValueProperty(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyPrivate::WriteFlag>) (object=0x55daa6dd5080, core=..., value=..., context=0x55daa6d85180, flags=...) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlproperty.cpp:1176
#34 0x00007f74fff72b4e in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) (this=this@entry=0x55daa6dd5350, core=..., result=..., isUndefined=<optimized out>, flags=...) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlbinding.cpp:327
#35 0x00007f74fff73aa7 in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) (this=0x55daa6dd5350, flags=...) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlbinding.cpp:191
#36 0x00007f74fff73f7e in QQmlBinding::refresh() (this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlbinding.cpp:403
#37 0x00007f74fff49af4 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) (endpoint=<optimized out>, a=a@entry=0x7ffdc4dbb320) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlnotifier.cpp:94
#38 0x00007f74ffef4454 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) (object=0x55daa6dd8080, index=6, a=0x7ffdc4dbb320) at /usr/src/debug/qtdeclarative-opensource-src-5.6.1/src/qml/qml/qqmlengine.cpp:772
#39 0x00007f74fce396c0 in QMetaObject::activate(QObject*, int, int, void**) (sender=0x55daa6dd8080, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x7ffdc4dbb320) at kernel/qobject.cpp:3616
#40 0x00007f743c7adcf2 in SmartLauncher::Item::countVisibleChanged(bool) () at /usr/lib64/qt5/qml/org/kde/plasma/private/taskmanager/libtaskmanagerplugin.so
#41 0x00007f74fce39ebc in QMetaObject::activate(QObject*, int, int, void**) (a=0x7ffdc4dbb460, r=0x55daa6dd8080, this=<optimized out>) at ../../src/corelib/kernel/qobject_impl.h:124
#42 0x00007f74fce39ebc in QMetaObject::activate(QObject*, int, int, void**) (sender=0x55daa6d4bb20, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3715
#43 0x00007f743c7ada16 in SmartLauncher::Backend::countVisibleChanged(QString const&, bool) () at /usr/lib64/qt5/qml/org/kde/plasma/private/taskmanager/libtaskmanagerplugin.so
#44 0x00007f743c7a9363 in SmartLauncher::Backend::updateApplicationJobPercent(QString const&, SmartLauncher::Entry*) () at /usr/lib64/qt5/qml/org/kde/plasma/private/taskmanager/libtaskmanagerplugin.so
#45 0x00007f743c7aa2d4 in SmartLauncher::Backend::dataUpdated(QString const&, QMap<QString, QVariant> const&) () at /usr/lib64/qt5/qml/org/kde/plasma/private/taskmanager/libtaskmanagerplugin.so
#46 0x00007f743c7ae0ad in SmartLauncher::Backend::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /usr/lib64/qt5/qml/org/kde/plasma/private/taskmanager/libtaskmanagerplugin.so
#47 0x00007f74fce1c73a in QMetaMethod::invoke(QObject*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) const (this=this@entry=0x7ffdc4dbb928, object=object@entry=0x55daa6d4bb20, connectionType=Qt::DirectConnection, connectionType@entry=1016816256, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:2211
#48 0x00007f74fce20d5d in QMetaObject::invokeMethod(QObject*, char const*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) (obj=obj@entry=0x55daa6d4bb20, member=member@entry=0x7f7500ea247e "dataUpdated", type=1016816256, type@entry=Qt::AutoConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1478
#49 0x00007f7500e5db43 in Plasma::DataEnginePrivate::connectSource(Plasma::DataContainer*, QObject*, unsigned int, Plasma::Types::IntervalAlignment, bool) (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., member=0x7f7500ea247e "dataUpdated", obj=0x55daa6d4bb20) at /usr/include/qt5/QtCore/qobjectdefs.h:467
#50 0x00007f7500e5db43 in Plasma::DataEnginePrivate::connectSource(Plasma::DataContainer*, QObject*, unsigned int, Plasma::Types::IntervalAlignment, bool) (this=<optimized out>, s=0x55daa7e7a9e0, visualization=visualization@entry=0x55daa6d4bb20, pollingInterval=<optimized out>, pollingInterval@entry=0, align=align@entry=Plasma::Types::NoAlignment, immediateCall=255) at /usr/src/debug/plasma-framework-5.27.0/src/plasma/dataengine.cpp:557
#51 0x00007f7500e5f0cd in Plasma::DataEngine::connectSource(QString const&, QObject*, unsigned int, Plasma::Types::IntervalAlignment) const (this=0x55daa3170fa0, source=..., visualization=0x55daa6d4bb20, pollingInterval=0, intervalAlignment=Plasma::Types::NoAlignment) at /usr/src/debug/plasma-framework-5.27.0/src/plasma/dataengine.cpp:124
#52 0x00007f74fce39ebc in QMetaObject::activate(QObject*, int, int, void**) (a=0x7ffdc4dbbe70, r=0x55daa6d4bb20, this=<optimized out>) at ../../src/corelib/kernel/qobject_impl.h:124
#53 0x00007f74fce39ebc in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x55daa3170fa0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdc4dbbe70) at kernel/qobject.cpp:3715
#54 0x00007f74fce3a3b7 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x55daa3170fa0, m=m@entry=0x7f75010bf600 <Plasma::DataEngine::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdc4dbbe70) at kernel/qobject.cpp:3595
#55 0x00007f7500e5cdb2 in Plasma::DataEngine::sourceAdded(QString const&) (this=this@entry=0x55daa3170fa0, _t1=...) at /usr/src/debug/plasma-framework-5.27.0/x86_64-redhat-linux-gnu/src/plasma/moc_dataengine.cpp:219
#56 0x00007f7500e5de75 in Plasma::DataEngine::addSource(Plasma::DataContainer*) (this=this@entry=0x55daa3170fa0, source=0x55daa7e7a9e0) at /usr/src/debug/plasma-framework-5.27.0/src/plasma/dataengine.cpp:272
#57 0x00007f743c308248 in KuiserverEngine::processPendingJobs() (this=0x55daa3170fa0) at /usr/src/debug/plasma-workspace-5.7.5/dataengines/applicationjobs/kuiserverengine.cpp:366
#58 0x00007f74fce39ebc in QMetaObject::activate(QObject*, int, int, void**) (a=0x7ffdc4dbc020, r=0x55daa3170fa0, this=<optimized out>) at ../../src/corelib/kernel/qobject_impl.h:124
#59 0x00007f74fce39ebc in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x55daa3170fb8, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3715
#60 0x00007f74fce3a3b7 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x55daa3170fb8, m=m@entry=0x7f74fd04ad80 <QTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3595
#61 0x00007f74fceac3f0 in QTimer::timeout(QTimer::QPrivateSignal) (this=this@entry=0x55daa3170fb8) at .moc/moc_qtimer.cpp:198
#62 0x00007f74fce45f88 in QTimer::timerEvent(QTimerEvent*) (this=0x55daa3170fb8, e=<optimized out>) at kernel/qtimer.cpp:247
#63 0x00007f74fce3ab8b in QObject::event(QEvent*) (this=0x55daa3170fb8, e=<optimized out>) at kernel/qobject.cpp:1278
#64 0x00007f74fd76bc0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x55daa3170fb8, e=0x7ffdc4dbc330) at kernel/qapplication.cpp:3804
#65 0x00007f74fd7710ef in QApplication::notify(QObject*, QEvent*) (this=0x7ffdc4dbc6f0, receiver=0x55daa3170fb8, e=0x7ffdc4dbc330) at kernel/qapplication.cpp:3561
#66 0x00007f74fce117aa in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55daa3170fb8, event=event@entry=0x7ffdc4dbc330) at kernel/qcoreapplication.cpp:1015
#67 0x00007f74fce607ab in QTimerInfoList::activateTimers() (event=0x7ffdc4dbc330, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:225
#68 0x00007f74fce607ab in QTimerInfoList::activateTimers() (this=0x55daa0896180) at kernel/qtimerinfo_unix.cpp:637
#69 0x00007f74fce60d39 in idleTimerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:176
#70 0x00007f74fce60d39 in idleTimerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:223
#71 0x00007f74f77bc6ba in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#72 0x00007f74f77bca70 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#73 0x00007f74f77bcb1c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#74 0x00007f74fce6122f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55daa08a0450, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#75 0x00007f74fce105ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffdc4dbc580, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#76 0x00007f74fce1817c in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1285
#77 0x000055daa0423fef in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.7.5/shell/main.cpp:166

Possible duplicates by query: bug 363118.

Reported using DrKonqi
Comment 1 Marco Martin 2016-12-28 14:19:14 UTC 
multiscreen bugs of plasmashell older than 5.8 aren't valid anymore as that part got rewritten