Application: plasmashell (5.12.4)
 (Compiled from sources)
Qt Version: 5.10.0
Frameworks Version: 5.45.0
Operating System: Linux 4.13.0-38-generic x86_64
Distribution: KDE neon Developer Edition

-- Information about the crash:
i try to run redshift but shuddently become crash i dont know why

The crash can be reproduced sometimes.

-- Backtrace:
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 0x7f4230e9c8c0 (LWP 1396))]

Thread 16 (Thread 0x7f414cde9700 (LWP 5484)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f422ac0867b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x5c56bc0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5fef260, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f416f51c78f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f416f520868 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f416f51e3e0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f422ac076eb in QThreadPrivate::start (arg=0x29ecae0) at thread/qthread_unix.cpp:376
#10 0x00007f4229aac6ba in start_thread (arg=0x7f414cde9700) at pthread_create.c:333
#11 0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f414d5ea700 (LWP 5483)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f422ac0867b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x5c56bc0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5fef260, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f416f51c78f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f416f520868 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f416f51e3e0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f422ac076eb in QThreadPrivate::start (arg=0x7f4130002f90) at thread/qthread_unix.cpp:376
#10 0x00007f4229aac6ba in start_thread (arg=0x7f414d5ea700) at pthread_create.c:333
#11 0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f414ddeb700 (LWP 5482)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f422ac0867b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x5c56bc0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5fef260, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f416f51c78f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f416f520868 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f416f51e3e0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f422ac076eb in QThreadPrivate::start (arg=0x7f413c003190) at thread/qthread_unix.cpp:376
#8  0x00007f4229aac6ba in start_thread (arg=0x7f414ddeb700) at pthread_create.c:333
#9  0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f414e5ec700 (LWP 5481)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f422ac0867b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x5c56bc0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5fef260, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f416f51c78f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f416f520868 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007f416f51e3e0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#17 0x00007f422ac076eb in QThreadPrivate::start (arg=0x7f4138002990) at thread/qthread_unix.cpp:376
#18 0x00007f4229aac6ba in start_thread (arg=0x7f414e5ec700) at pthread_create.c:333
#19 0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f414eded700 (LWP 5480)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f422ac0867b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x5c56bc0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5fef260, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f416f51c78f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f416f520868 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f416f51e3e0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f422ac076eb in QThreadPrivate::start (arg=0x5f73530) at thread/qthread_unix.cpp:376
#12 0x00007f4229aac6ba in start_thread (arg=0x7f414eded700) at pthread_create.c:333
#13 0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f414f5ee700 (LWP 5479)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f422ac0867b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x5c56bc0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5fef260, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f416f51c78f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f416f520868 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007f416f51e3e0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#17 0x00007f422ac076eb in QThreadPrivate::start (arg=0x7f4148001fe0) at thread/qthread_unix.cpp:376
#18 0x00007f4229aac6ba in start_thread (arg=0x7f414f5ee700) at pthread_create.c:333
#19 0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f414fdef700 (LWP 5478)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f422ac0867b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x5c56bc0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5fef260, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f416f51c78f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f416f520868 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#17 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#18 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#19 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#20 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#21 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#22 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#23 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#24 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#25 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#26 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#27 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#28 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#29 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#30 0x00007f416f51e3e0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#31 0x00007f422ac076eb in QThreadPrivate::start (arg=0x4702930) at thread/qthread_unix.cpp:376
#32 0x00007f4229aac6ba in start_thread (arg=0x7f414fdef700) at pthread_create.c:333
#33 0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f4159994700 (LWP 5477)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f422ac0867b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x5c56bc0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5fef260, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f416f51c78f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f416f520868 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f416f5208c2 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f416f51b9ed in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007f416f51e3e0 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#17 0x00007f422ac076eb in QThreadPrivate::start (arg=0x5ff0100) at thread/qthread_unix.cpp:376
#18 0x00007f4229aac6ba in start_thread (arg=0x7f4159994700) at pthread_create.c:333
#19 0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f415b653700 (LWP 3259)):
#0  0x00007f422ae39c22 in QTimerInfoList::timerWait (this=0x7f4154001290, tm=...) at kernel/qtimerinfo_unix.cpp:387
#1  0x00007f422ae3b33e in timerSourcePrepareHelper (timeout=0x7f415b652b14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:132
#2  timerSourcePrepare (source=<optimized out>, timeout=0x7f415b652b14) at kernel/qeventdispatcher_glib.cpp:165
#3  0x00007f422515291d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f42251532bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f422515349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f422ae3b5cb in QEventDispatcherGlib::processEvents (this=0x7f4154001e00, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f422ade264a in QEventLoop::exec (this=this@entry=0x7f415b652ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#8  0x00007f422ac02554 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#9  0x00007f422dd73a35 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f422ac076eb in QThreadPrivate::start (arg=0x5797e60) at thread/qthread_unix.cpp:376
#11 0x00007f4229aac6ba in start_thread (arg=0x7f415b653700) at pthread_create.c:333
#12 0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f4161f51700 (LWP 1624)):
#0  0x00007f422a50427d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f42251966f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4225152e74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4225153330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f422515349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f422ae3b5cb in QEventDispatcherGlib::processEvents (this=0x7f415c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f422ade264a in QEventLoop::exec (this=this@entry=0x7f4161f50cc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#7  0x00007f422ac02554 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#8  0x00007f4164430f37 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#9  0x00007f422ac076eb in QThreadPrivate::start (arg=0x464eba0) at thread/qthread_unix.cpp:376
#10 0x00007f4229aac6ba in start_thread (arg=0x7f4161f51700) at pthread_create.c:333
#11 0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f4176080700 (LWP 1609)):
#0  0x00007f422a50427d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f42251966f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4225152e74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4225153330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f422515349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f422ae3b5cb in QEventDispatcherGlib::processEvents (this=0x7f41700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f422ade264a in QEventLoop::exec (this=this@entry=0x7f417607fc90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#7  0x00007f422ac02554 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#8  0x00007f422e9241c6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f422ac076eb in QThreadPrivate::start (arg=0x1064ad0) at thread/qthread_unix.cpp:376
#10 0x00007f4229aac6ba in start_thread (arg=0x7f4176080700) at pthread_create.c:333
#11 0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f420a55f700 (LWP 1561)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f4230608db4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f4230608df9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f4229aac6ba in start_thread (arg=0x7f420a55f700) at pthread_create.c:333
#4  0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f420bfff700 (LWP 1535)):
#0  0x00007f422a50874d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f422515338c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f422515349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f422ae3b5cb in QEventDispatcherGlib::processEvents (this=0x7f42000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f422ade264a in QEventLoop::exec (this=this@entry=0x7f420bffece0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f422ac02554 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#6  0x00007f422dd73a35 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f422ac076eb in QThreadPrivate::start (arg=0x1160d50) at thread/qthread_unix.cpp:376
#8  0x00007f4229aac6ba in start_thread (arg=0x7f420bfff700) at pthread_create.c:333
#9  0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f42123b0700 (LWP 1443)):
#0  0x00007f4225197a94 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4225152db9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4225153330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f422515349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f422ae3b5cb in QEventDispatcherGlib::processEvents (this=0x7f42040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f422ade264a in QEventLoop::exec (this=this@entry=0x7f42123afce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007f422ac02554 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#7  0x00007f422dd73a35 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f422ac076eb in QThreadPrivate::start (arg=0x1070cc0) at thread/qthread_unix.cpp:376
#9  0x00007f4229aac6ba in start_thread (arg=0x7f42123b0700) at pthread_create.c:333
#10 0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f4213df5700 (LWP 1417)):
#0  0x00007f422a50874d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f422515338c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f422515349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f422ae3b5cb in QEventDispatcherGlib::processEvents (this=0x7f420c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f422ade264a in QEventLoop::exec (this=this@entry=0x7f4213df4cd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f422ac02554 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#6  0x00007f422b25e2c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f422ac076eb in QThreadPrivate::start (arg=0x7f422b4d2d60) at thread/qthread_unix.cpp:376
#8  0x00007f4229aac6ba in start_thread (arg=0x7f4213df5700) at pthread_create.c:333
#9  0x00007f422a51441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f4230e9c8c0 (LWP 1396)):
[KCrash Handler]
#6  std::__atomic_base<QReadWriteLockPrivate*>::compare_exchange_strong (__m2=std::memory_order_acquire, __m1=std::memory_order_acquire, __p2=0x1, __p1=@0x7fffb282ce00: 0x0, this=0x3100750070006b) at /usr/include/c++/5/bits/atomic_base.h:752
#7  std::atomic<QReadWriteLockPrivate*>::compare_exchange_strong (__m2=std::memory_order_acquire, __m1=std::memory_order_acquire, __p2=0x1, __p1=@0x7fffb282ce00: 0x0, this=0x3100750070006b) at /usr/include/c++/5/atomic:462
#8  QAtomicOps<QReadWriteLockPrivate*>::testAndSetAcquire<QReadWriteLockPrivate*> (currentValue=0x0, newValue=0x1, expectedValue=0x0, _q_value=...) at ../../include/QtCore/../../src/corelib/arch/qatomic_cxx11.h:290
#9  QBasicAtomicPointer<QReadWriteLockPrivate>::testAndSetAcquire (newValue=0x1, expectedValue=0x0, this=0x3100750070006b) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:253
#10 QReadWriteLock::lockForRead (this=0x3100750070006b) at thread/qreadwritelock.cpp:177
#11 0x00007f417409afe1 in Plasma::RunnerContext::isValid() const () from /usr/lib/x86_64-linux-gnu/libKF5Runner.so.5
#12 0x00007f417409d099 in Plasma::RunnerContext::addMatch(Plasma::QueryMatch const&) () from /usr/lib/x86_64-linux-gnu/libKF5Runner.so.5
#13 0x00007f417408fee9 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Runner.so.5
#14 0x00007f422ae124c9 in QObject::event (this=0x410a0c0, e=<optimized out>) at kernel/qobject.cpp:1246
#15 0x00007f422bdb0acc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x410a0c0, e=0x7f413401c6a0) at kernel/qapplication.cpp:3732
#16 0x00007f422bdb8417 in QApplication::notify (this=0x7fffb282d670, receiver=0x410a0c0, e=0x7f413401c6a0) at kernel/qapplication.cpp:3491
#17 0x00007f422ade43c8 in QCoreApplication::notifyInternal2 (receiver=0x410a0c0, event=event@entry=0x7f413401c6a0) at kernel/qcoreapplication.cpp:1044
#18 0x00007f422ade6fcb in QCoreApplication::sendEvent (event=0x7f413401c6a0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#19 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0xf60be0) at kernel/qcoreapplication.cpp:1719
#20 0x00007f422ade7438 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1573
#21 0x00007f422ae3bfa3 in postEventSourceDispatch (s=0xfbc900) at kernel/qeventdispatcher_glib.cpp:276
#22 0x00007f4225153197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f42251533f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f422515349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f422ae3b5af in QEventDispatcherGlib::processEvents (this=this@entry=0xfbc830, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#26 0x00007f421c3581a1 in QPAEventDispatcherGlib::processEvents (this=0xfbc830, flags=...) at qeventdispatcher_glib.cpp:69
#27 0x00007f422ade264a in QEventLoop::exec (this=this@entry=0x7fffb282d530, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#28 0x00007f422adeb854 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1332
#29 0x00007f422b60083c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1687
#30 0x00007f422bdb0a25 in QApplication::exec () at kernel/qapplication.cpp:2917
#31 0x000000000041cdac in main (argc=1, argv=<optimized out>) at /workspace/build/shell/main.cpp:166

Reported using DrKonqi