409674 – Sudden plasma crash (v5.16.3)

Bug 409674 - Sudden plasma crash (v5.16.3)

Summary: Sudden plasma crash (v5.16.3)

Status:	RESOLVED UPSTREAM

Alias:	None

Product:	frameworks-kxmlgui
Classification:	Frameworks and Libraries
Component:	general (show other bugs)
Version:	5.61.0
Platform:	Fedora RPMs Linux

Importance:	NOR crash
Target Milestone:	---
Assignee:	kdelibs bugs

URL:
Keywords:	drkonqi

Depends on:
Blocks:

Reported:	2019-07-10 09:59 UTC by Yaroslav Sidlovsky
Modified:	2021-01-09 13:28 UTC (History)
CC List:	1 user (show)

See Also:
Latest Commit:
Version Fixed In:

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Description Yaroslav Sidlovsky 2019-07-10 09:59:39 UTC

Application: plasmashell (5.16.3)

Qt Version: 5.12.4
Frameworks Version: 5.59.0
Operating System: Linux 5.1.12-300.fc30.x86_64 x86_64
Distribution: "Fedora release 30 (Thirty)"

-- Information about the crash:
I see this crash right after updating to plasma 5.16.3.
I have no third party plasma widgets installed.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
29	  return SYSCALL_CANCEL (poll, fds, nfds, timeout);
[Current thread is 1 (Thread 0x7f3275c1ad00 (LWP 28087))]

Thread 19 (Thread 0x7f31fa8b7700 (LWP 2457)):
#0  0x00007f327bd204d5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f5e99cbd04) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f327bd204d5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f5e99cbcb0, cond=0x55f5e99cbcd8) at pthread_cond_wait.c:502
#2  0x00007f327bd204d5 in __pthread_cond_wait (cond=0x55f5e99cbcd8, mutex=0x55f5e99cbcb0) at pthread_cond_wait.c:655
#3  0x00007f327c87f283 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#4  0x00007f327c87f311 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#5  0x00007f327e61ff59 in  () at /lib64/libQt5Quick.so.5
#6  0x00007f327e6201fd in  () at /lib64/libQt5Quick.so.5
#7  0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#8  0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f321666a700 (LWP 2413)):
#0  0x00007f327bd204d5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f5e7e8bcc0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f327bd204d5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f5e7e8bc70, cond=0x55f5e7e8bc98) at pthread_cond_wait.c:502
#2  0x00007f327bd204d5 in __pthread_cond_wait (cond=0x55f5e7e8bc98, mutex=0x55f5e7e8bc70) at pthread_cond_wait.c:655
#3  0x00007f327c87f283 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#4  0x00007f327c87f311 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#5  0x00007f327e61ff59 in  () at /lib64/libQt5Quick.so.5
#6  0x00007f327e6201fd in  () at /lib64/libQt5Quick.so.5
#7  0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#8  0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f3216ffd700 (LWP 2363)):
#0  0x00007f327bd204d5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f5e8170e14) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f327bd204d5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f5e8170dc0, cond=0x55f5e8170de8) at pthread_cond_wait.c:502
#2  0x00007f327bd204d5 in __pthread_cond_wait (cond=0x55f5e8170de8, mutex=0x55f5e8170dc0) at pthread_cond_wait.c:655
#3  0x00007f327c87f283 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#4  0x00007f327c87f311 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#5  0x00007f3258ee3ba0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f3258ee781e in  () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#10 0x00007f3258ee57d3 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#11 0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#12 0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#13 0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f32177fe700 (LWP 2362)):
#0  0x00007f327bd204d5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f5e8170e14) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f327bd204d5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f5e8170dc0, cond=0x55f5e8170de8) at pthread_cond_wait.c:502
#2  0x00007f327bd204d5 in __pthread_cond_wait (cond=0x55f5e8170de8, mutex=0x55f5e8170dc0) at pthread_cond_wait.c:655
#3  0x00007f327c87f283 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#4  0x00007f327c87f311 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#5  0x00007f3258ee3ba0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f3258ee781e in  () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#10 0x00007f3258ee57d3 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#11 0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#12 0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#13 0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f3217fff700 (LWP 2361)):
#0  0x00007f327bd204d5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f5e8170e14) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f327bd204d5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f5e8170dc0, cond=0x55f5e8170de8) at pthread_cond_wait.c:502
#2  0x00007f327bd204d5 in __pthread_cond_wait (cond=0x55f5e8170de8, mutex=0x55f5e8170dc0) at pthread_cond_wait.c:655
#3  0x00007f327c87f283 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#4  0x00007f327c87f311 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#5  0x00007f3258ee3ba0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f3258ee781e in  () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f3258ee57d3 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#10 0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f322cd7a700 (LWP 2360)):
#0  0x00007f327bd204d5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f5e8170e14) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f327bd204d5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f5e8170dc0, cond=0x55f5e8170de8) at pthread_cond_wait.c:502
#2  0x00007f327bd204d5 in __pthread_cond_wait (cond=0x55f5e8170de8, mutex=0x55f5e8170dc0) at pthread_cond_wait.c:655
#3  0x00007f327c87f283 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#4  0x00007f327c87f311 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#5  0x00007f3258ee3ba0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f3258ee781e in  () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f3258ee57d3 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#10 0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f322d57b700 (LWP 2359)):
#0  0x00007f327bd204d5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f5e8170e14) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f327bd204d5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f5e8170dc0, cond=0x55f5e8170de8) at pthread_cond_wait.c:502
#2  0x00007f327bd204d5 in __pthread_cond_wait (cond=0x55f5e8170de8, mutex=0x55f5e8170dc0) at pthread_cond_wait.c:655
#3  0x00007f327c87f283 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#4  0x00007f327c87f311 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#5  0x00007f3258ee3ba0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f3258ee781e in  () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#10 0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#11 0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#12 0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#13 0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#14 0x00007f3258ee57d3 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#15 0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#16 0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#17 0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f322dd7c700 (LWP 2358)):
#0  0x00007f327bd204d5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f5e8170e14) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f327bd204d5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f5e8170dc0, cond=0x55f5e8170de8) at pthread_cond_wait.c:502
#2  0x00007f327bd204d5 in __pthread_cond_wait (cond=0x55f5e8170de8, mutex=0x55f5e8170dc0) at pthread_cond_wait.c:655
#3  0x00007f327c87f283 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#4  0x00007f327c87f311 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#5  0x00007f3258ee3ba0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f3258ee781e in  () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#10 0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#11 0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#12 0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#13 0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#14 0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#15 0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#16 0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#17 0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#18 0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#19 0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#20 0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#21 0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#22 0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#23 0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#24 0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#25 0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#26 0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#27 0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#28 0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#29 0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#30 0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#31 0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#32 0x00007f3258ee57d3 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#33 0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#34 0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#35 0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f322e57d700 (LWP 2357)):
#0  0x00007f327bd204d5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f5e8170e14) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f327bd204d5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f5e8170dc0, cond=0x55f5e8170de8) at pthread_cond_wait.c:502
#2  0x00007f327bd204d5 in __pthread_cond_wait (cond=0x55f5e8170de8, mutex=0x55f5e8170dc0) at pthread_cond_wait.c:655
#3  0x00007f327c87f283 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#4  0x00007f327c87f311 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#5  0x00007f3258ee3ba0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f3258ee781e in  () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f3258ee57d3 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#10 0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f322f7fe700 (LWP 2356)):
#0  0x00007f327bd204d5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f5e8170e14) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f327bd204d5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f5e8170dc0, cond=0x55f5e8170de8) at pthread_cond_wait.c:502
#2  0x00007f327bd204d5 in __pthread_cond_wait (cond=0x55f5e8170de8, mutex=0x55f5e8170dc0) at pthread_cond_wait.c:655
#3  0x00007f327c87f283 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#4  0x00007f327c87f311 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#5  0x00007f3258ee3ba0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007f3258ee781e in  () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007f3258ee7879 in  () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007f3258ee2d72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#10 0x00007f3258ee57d3 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#11 0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#12 0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#13 0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f322ffff700 (LWP 28494)):
#0  0x00007f327bd204d5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f5e7391a00) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f327bd204d5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f5e73919b0, cond=0x55f5e73919d8) at pthread_cond_wait.c:502
#2  0x00007f327bd204d5 in __pthread_cond_wait (cond=0x55f5e73919d8, mutex=0x55f5e73919b0) at pthread_cond_wait.c:655
#3  0x00007f327c87f283 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#4  0x00007f327c87f311 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#5  0x00007f327e61ff59 in  () at /lib64/libQt5Quick.so.5
#6  0x00007f327e6201fd in  () at /lib64/libQt5Quick.so.5
#7  0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#8  0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f3245616700 (LWP 28123)):
#0  0x00007f327bd204d5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f5e776f804) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f327bd204d5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f5e776f7b0, cond=0x55f5e776f7d8) at pthread_cond_wait.c:502
#2  0x00007f327bd204d5 in __pthread_cond_wait (cond=0x55f5e776f7d8, mutex=0x55f5e776f7b0) at pthread_cond_wait.c:655
#3  0x00007f327c87f283 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#4  0x00007f327c87f311 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#5  0x00007f327e61ff59 in  () at /lib64/libQt5Quick.so.5
#6  0x00007f327e6201fd in  () at /lib64/libQt5Quick.so.5
#7  0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#8  0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f32477a6700 (LWP 28119)):
#0  0x00007f327c4ed5c7 in __GI___poll (fds=0x7f32400060f0, nfds=1, timeout=2544747) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f327aeb91de in  () at /lib64/libglib-2.0.so.0
#2  0x00007f327aeb9313 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f327ca75bf3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f327ca1f9eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f327c878635 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f3247f7ac2c in KCupsConnection::run() () at /lib64/libkcupslib.so
#7  0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#8  0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f3259dae700 (LWP 28104)):
#0  0x00007f327bd204d5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x55f5e6750b04) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f327bd204d5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55f5e6750ab0, cond=0x55f5e6750ad8) at pthread_cond_wait.c:502
#2  0x00007f327bd204d5 in __pthread_cond_wait (cond=0x55f5e6750ad8, mutex=0x55f5e6750ab0) at pthread_cond_wait.c:655
#3  0x00007f327c87f283 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#4  0x00007f327c87f311 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#5  0x00007f327e61ff59 in  () at /lib64/libQt5Quick.so.5
#6  0x00007f327e6201fd in  () at /lib64/libQt5Quick.so.5
#7  0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#8  0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f325ad99700 (LWP 28103)):
#0  0x00007f327aeb869b in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007f327aeb910b in  () at /lib64/libglib-2.0.so.0
#2  0x00007f327aeb9313 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f327ca75bf3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f327ca1f9eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f327c878635 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f327e593e4a in  () at /lib64/libQt5Quick.so.5
#7  0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#8  0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f3262abb700 (LWP 28093)):
#0  0x00007f327c4e908c in __GI___libc_read (nbytes=16, buf=0x7f3262abaad0, fd=11) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f327c4e908c in __GI___libc_read (fd=11, buf=0x7f3262abaad0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f327af0070f in  () at /lib64/libglib-2.0.so.0
#3  0x00007f327aeb8d27 in g_main_context_check () at /lib64/libglib-2.0.so.0
#4  0x00007f327aeb9182 in  () at /lib64/libglib-2.0.so.0
#5  0x00007f327aeb9313 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#6  0x00007f327ca75bf3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007f327ca1f9eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#8  0x00007f327c878635 in QThread::exec() () at /lib64/libQt5Core.so.5
#9  0x00007f327e2aaa69 in  () at /lib64/libQt5Qml.so.5
#10 0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#11 0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#12 0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f3263d1f700 (LWP 28089)):
#0  0x00007f327c4ed5c7 in __GI___poll (fds=0x7f325c013020, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f327aeb91de in  () at /lib64/libglib-2.0.so.0
#2  0x00007f327aeb9313 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f327ca75bf3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f327ca1f9eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f327c878635 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f327d288f4a in  () at /lib64/libQt5DBus.so.5
#7  0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#8  0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f3268971700 (LWP 28088)):
#0  0x00007f327c4ed5c7 in __GI___poll (fds=0x7f3268970c28, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f327ea2738a in  () at /lib64/libxcb.so.1
#2  0x00007f327ea28ffa in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f3268b09b98 in  () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f327c879786 in  () at /lib64/libQt5Core.so.5
#5  0x00007f327bd1a5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f327c4f8303 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f3275c1ad00 (LWP 28087)):
[KCrash Handler]
#6  0x00007f327ce11bf7 in QKeySequence::isEmpty() const () at /lib64/libQt5Gui.so.5
#7  0x00007f327d50bd4c in QAction::shortcuts() const () at /lib64/libQt5Widgets.so.5
#8  0x00007f327dee82de in  () at /lib64/libKF5XmlGui.so.5
#9  0x00007f327dee8ca7 in  () at /lib64/libKF5XmlGui.so.5
#10 0x00007f327d7f5d79 in  () at /lib64/libQt5Widgets.so.5
#11 0x00007f327d7a2c98 in QStyledItemDelegate::initStyleOption(QStyleOptionViewItem*, QModelIndex const&) const () at /lib64/libQt5Widgets.so.5
#12 0x00007f327bb53997 in KExtendableItemDelegate::paint(QPainter*, QStyleOptionViewItem const&, QModelIndex const&) const () at /lib64/libKF5ItemViews.so.5
#13 0x00007f327d7e7b7a in QTreeView::drawRow(QPainter*, QStyleOptionViewItem const&, QModelIndex const&) const () at /lib64/libQt5Widgets.so.5
#14 0x00007f327d7ed093 in QTreeView::drawTree(QPainter*, QRegion const&) const () at /lib64/libQt5Widgets.so.5
#15 0x00007f327d7f1c87 in QTreeView::paintEvent(QPaintEvent*) () at /lib64/libQt5Widgets.so.5
#16 0x00007f327d55316e in QWidget::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#17 0x00007f327d600642 in QFrame::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#18 0x00007f327d784822 in QAbstractItemView::viewportEvent(QEvent*) () at /lib64/libQt5Widgets.so.5
#19 0x00007f327d7f2c3f in QTreeView::viewportEvent(QEvent*) () at /lib64/libQt5Widgets.so.5
#20 0x00007f327ca2092e in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#21 0x00007f327d510ae5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#22 0x00007f327d519e80 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#23 0x00007f327ca20ae8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#24 0x00007f327d54bc9a in QWidgetPrivate::sendPaintEvent(QRegion const&) () at /lib64/libQt5Widgets.so.5
#25 0x00007f327d54c4d9 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#26 0x00007f327d54d1f3 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#27 0x00007f327d54d0d6 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#28 0x00007f327d54d0d6 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#29 0x00007f327d54d0d6 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#30 0x00007f327d54c1ec in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#31 0x00007f327d54d1f3 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#32 0x00007f327d54c1ec in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#33 0x00007f327d54d1f3 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#34 0x00007f327d54c1ec in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#35 0x00007f327d54d1f3 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#36 0x00007f327d54c1ec in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#37 0x00007f327d54d1f3 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#38 0x00007f327d54c1ec in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#39 0x00007f327d54d1f3 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#40 0x00007f327d54c1ec in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#41 0x00007f327d54d1f3 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#42 0x00007f327d54d0d6 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#43 0x00007f327d54d0d6 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#44 0x00007f327d54c1ec in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#45 0x00007f327d54d1f3 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#46 0x00007f327d54d0d6 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#47 0x00007f327d54d0d6 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#48 0x00007f327d54c1ec in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /lib64/libQt5Widgets.so.5
#49 0x00007f327d522c2a in  () at /lib64/libQt5Widgets.so.5
#50 0x00007f327d522fc1 in  () at /lib64/libQt5Widgets.so.5
#51 0x00007f327d53b065 in QWidgetPrivate::syncBackingStore() () at /lib64/libQt5Widgets.so.5
#52 0x00007f327d553bc8 in QWidget::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#53 0x00007f327d510af6 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#54 0x00007f327d519e80 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#55 0x00007f327ca20ae8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#56 0x00007f327ca23a93 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#57 0x00007f327ca75e47 in  () at /lib64/libQt5Core.so.5
#58 0x00007f327aeb8edd in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#59 0x00007f327aeb9270 in  () at /lib64/libglib-2.0.so.0
#60 0x00007f327aeb9313 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#61 0x00007f327ca75bd5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#62 0x00007f327ca1f9eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#63 0x00007f327ca27726 in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#64 0x000055f5e49b67e4 in  ()
#65 0x00007f327c420f33 in __libc_start_main (main=0x55f5e49b5c90, argc=2, argv=0x7fff16fbafe8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff16fbafd8) at ../csu/libc-start.c:308
#66 0x000055f5e49b6c6e in _start ()
[Inferior 1 (process 28087) detached]

Reported using DrKonqi