Bug 414314

Summary: Crash when switching to another open application
Product: [Plasma] krunner Reporter: Anton K <KVAnton.WEB>
Component: generalAssignee: Kai Uwe Broulik <kde>
Status: RESOLVED WAITINGFORINFO    
Severity: crash CC: nate
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.17.3   
Target Milestone: ---   
Platform: unspecified   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Anton K 2019-11-19 21:27:23 UTC 
Application: krunner (5.17.3)

Qt Version: 5.13.2
Frameworks Version: 5.64.0
Operating System: Linux 5.2.16-050216-generic x86_64
Distribution: KDE neon User Edition 5.17

-- Information about the crash:
I am use plugin "krunner-switcher": https://github.com/ration/krunner-switcher

- What I was doing when the application crashed:

Crash when switching to another open application
typing ".emacs" and press enter

The crash can be reproduced sometimes.

-- Backtrace:
Application: krunner (krunner), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2a23ce9440 (LWP 29764))]

Thread 15 (Thread 0x7f299f7fe700 (LWP 29792)):
#0  0x00007f2a1d0dd9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d9ea143110) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2a1d0dd9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d9ea1430c0, cond=0x55d9ea1430e8) at pthread_cond_wait.c:502
#2  0x00007f2a1d0dd9f3 in __pthread_cond_wait (cond=0x55d9ea1430e8, mutex=0x55d9ea1430c0) at pthread_cond_wait.c:655
#3  0x00007f2a1fb77aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55d9ea1430c0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f2a1fb77aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55d9ea143940, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f2a1fb77df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x55d9ea143028, mutex=0x55d9ea143940, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f29fce34845 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f29fce386f8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f29fce33b0d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f29fce365bb in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f2a1fb70b52 in QThreadPrivate::start(void*) (arg=0x7f29ac003ce0) at thread/qthread_unix.cpp:360
#11 0x00007f2a1d0d76db in start_thread (arg=0x7f299f7fe700) at pthread_create.c:463
#12 0x00007f2a1f41688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f299ffff700 (LWP 29791)):
#0  0x00007f2a1d0dd9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d9ea143110) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2a1d0dd9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d9ea1430c0, cond=0x55d9ea1430e8) at pthread_cond_wait.c:502
#2  0x00007f2a1d0dd9f3 in __pthread_cond_wait (cond=0x55d9ea1430e8, mutex=0x55d9ea1430c0) at pthread_cond_wait.c:655
#3  0x00007f2a1fb77aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55d9ea1430c0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f2a1fb77aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55d9ea143940, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f2a1fb77df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x55d9ea143028, mutex=0x55d9ea143940, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f29fce34845 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f29fce386f8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f29fce33b0d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f29fce38752 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f29fce33b0d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f29fce38752 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f29fce33b0d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f29fce365bb in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f2a1fb70b52 in QThreadPrivate::start(void*) (arg=0x7f29a8004520) at thread/qthread_unix.cpp:360
#15 0x00007f2a1d0d76db in start_thread (arg=0x7f299ffff700) at pthread_create.c:463
#16 0x00007f2a1f41688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f29b8f5e700 (LWP 29790)):
#0  0x00007f2a1d0dd9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d9ea143110) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2a1d0dd9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d9ea1430c0, cond=0x55d9ea1430e8) at pthread_cond_wait.c:502
#2  0x00007f2a1d0dd9f3 in __pthread_cond_wait (cond=0x55d9ea1430e8, mutex=0x55d9ea1430c0) at pthread_cond_wait.c:655
#3  0x00007f2a1fb77aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55d9ea1430c0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f2a1fb77aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55d9ea143940, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f2a1fb77df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x55d9ea143028, mutex=0x55d9ea143940, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f29fce34845 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f29fce386f8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f29fce33b0d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f29fce365bb in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f2a1fb70b52 in QThreadPrivate::start(void*) (arg=0x7f29a0003cf0) at thread/qthread_unix.cpp:360
#11 0x00007f2a1d0d76db in start_thread (arg=0x7f29b8f5e700) at pthread_create.c:463
#12 0x00007f2a1f41688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f29b975f700 (LWP 29789)):
#0  0x00007f2a1d0dd9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d9ea143110) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2a1d0dd9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d9ea1430c0, cond=0x55d9ea1430e8) at pthread_cond_wait.c:502
#2  0x00007f2a1d0dd9f3 in __pthread_cond_wait (cond=0x55d9ea1430e8, mutex=0x55d9ea1430c0) at pthread_cond_wait.c:655
#3  0x00007f2a1fb77aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55d9ea1430c0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f2a1fb77aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55d9ea143940, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f2a1fb77df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x55d9ea143028, mutex=0x55d9ea143940, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f29fce34845 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f29fce386f8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f29fce33b0d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f29fce365bb in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f2a1fb70b52 in QThreadPrivate::start(void*) (arg=0x7f29a8003ce0) at thread/qthread_unix.cpp:360
#11 0x00007f2a1d0d76db in start_thread (arg=0x7f29b975f700) at pthread_create.c:463
#12 0x00007f2a1f41688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f29b9f60700 (LWP 29788)):
#0  0x00007f2a1d0dd9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d9ea143110) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2a1d0dd9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d9ea1430c0, cond=0x55d9ea1430e8) at pthread_cond_wait.c:502
#2  0x00007f2a1d0dd9f3 in __pthread_cond_wait (cond=0x55d9ea1430e8, mutex=0x55d9ea1430c0) at pthread_cond_wait.c:655
#3  0x00007f2a1fb77aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55d9ea1430c0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f2a1fb77aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55d9ea143940, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f2a1fb77df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x55d9ea143028, mutex=0x55d9ea143940, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f29fce34845 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f29fce386f8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f29fce33b0d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f29fce365bb in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f2a1fb70b52 in QThreadPrivate::start(void*) (arg=0x55d9ea55c5c0) at thread/qthread_unix.cpp:360
#11 0x00007f2a1d0d76db in start_thread (arg=0x7f29b9f60700) at pthread_create.c:463
#12 0x00007f2a1f41688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f29ba761700 (LWP 29787)):
#0  0x00007f2a1d0dd9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d9ea143110) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2a1d0dd9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d9ea1430c0, cond=0x55d9ea1430e8) at pthread_cond_wait.c:502
#2  0x00007f2a1d0dd9f3 in __pthread_cond_wait (cond=0x55d9ea1430e8, mutex=0x55d9ea1430c0) at pthread_cond_wait.c:655
#3  0x00007f2a1fb77aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55d9ea1430c0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f2a1fb77aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55d9ea143940, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f2a1fb77df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x55d9ea143028, mutex=0x55d9ea143940, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f29fce34845 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f29fce386f8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f29fce33b0d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f29fce365bb in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f2a1fb70b52 in QThreadPrivate::start(void*) (arg=0x7f29b0003510) at thread/qthread_unix.cpp:360
#11 0x00007f2a1d0d76db in start_thread (arg=0x7f29ba761700) at pthread_create.c:463
#12 0x00007f2a1f41688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f29baf62700 (LWP 29786)):
#0  0x00007f2a1d0dd9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d9ea143110) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2a1d0dd9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d9ea1430c0, cond=0x55d9ea1430e8) at pthread_cond_wait.c:502
#2  0x00007f2a1d0dd9f3 in __pthread_cond_wait (cond=0x55d9ea1430e8, mutex=0x55d9ea1430c0) at pthread_cond_wait.c:655
#3  0x00007f2a1fb77aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55d9ea1430c0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f2a1fb77aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55d9ea143940, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f2a1fb77df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x55d9ea143028, mutex=0x55d9ea143940, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f29fce34845 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f29fce386f8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f29fce33b0d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f29fce365bb in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f2a1fb70b52 in QThreadPrivate::start(void*) (arg=0x55d9eb9247f0) at thread/qthread_unix.cpp:360
#11 0x00007f2a1d0d76db in start_thread (arg=0x7f29baf62700) at pthread_create.c:463
#12 0x00007f2a1f41688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f29bb763700 (LWP 29785)):
#0  0x00007f2a1d0dd9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d9ea143110) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2a1d0dd9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d9ea1430c0, cond=0x55d9ea1430e8) at pthread_cond_wait.c:502
#2  0x00007f2a1d0dd9f3 in __pthread_cond_wait (cond=0x55d9ea1430e8, mutex=0x55d9ea1430c0) at pthread_cond_wait.c:655
#3  0x00007f2a1fb77aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55d9ea1430c0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f2a1fb77aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55d9ea143940, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f2a1fb77df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x55d9ea143028, mutex=0x55d9ea143940, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f29fce34845 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f29fce386f8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f29fce33b0d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f29fce365bb in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f2a1fb70b52 in QThreadPrivate::start(void*) (arg=0x55d9ea55ae20) at thread/qthread_unix.cpp:360
#11 0x00007f2a1d0d76db in start_thread (arg=0x7f29bb763700) at pthread_create.c:463
#12 0x00007f2a1f41688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f29c20ec700 (LWP 29784)):
#0  0x00007f2a1f4050b4 in __GI___libc_read (fd=47, buf=0x7f29c20ebcd0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f2a1ab402d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a1aafb0b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a1aafb570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2a1aafb962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f29e3d830e6 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f2a1ab23195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f2a1d0d76db in start_thread (arg=0x7f29c20ec700) at pthread_create.c:463
#8  0x00007f2a1f41688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f29c28ed700 (LWP 29783)):
#0  0x00007f2a1aafad62 in g_main_context_query () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2a1aafb547 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a1aafb6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a1aafb721 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2a1ab23195 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f2a1d0d76db in start_thread (arg=0x7f29c28ed700) at pthread_create.c:463
#6  0x00007f2a1f41688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f29f2a83700 (LWP 29773)):
#0  0x00007f2a1d0dd9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d9e9ea4d40) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2a1d0dd9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d9e9ea4cf0, cond=0x55d9e9ea4d18) at pthread_cond_wait.c:502
#2  0x00007f2a1d0dd9f3 in __pthread_cond_wait (cond=0x55d9e9ea4d18, mutex=0x55d9e9ea4cf0) at pthread_cond_wait.c:655
#3  0x00007f2a1fb77aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55d9e9ea4cf0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f2a1fb77aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55d9e9ef4d20, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f2a1fb77df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x55d9e9ef4d28, mutex=0x55d9e9ef4d20, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f2a22d84ec8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f2a22d852fa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f2a1fb70b52 in QThreadPrivate::start(void*) (arg=0x55d9e9ef4ca0) at thread/qthread_unix.cpp:360
#9  0x00007f2a1d0d76db in start_thread (arg=0x7f29f2a83700) at pthread_create.c:463
#10 0x00007f2a1f41688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f29fffff700 (LWP 29772)):
#0  0x00007f2a1f409bf9 in __GI___poll (fds=0x7f29f8004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f2a1aafb5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a1aafb6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a1fdb3b9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f29f8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f2a1fd5406a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f29ffffed80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f2a1fb6f3aa in QThread::exec() (this=this@entry=0x55d9e9e97fa0) at thread/qthread.cpp:531
#6  0x00007f2a2282c815 in QQmlThreadPrivate::run() (this=0x55d9e9e97fa0) at qml/ftw/qqmlthread.cpp:152
#7  0x00007f2a1fb70b52 in QThreadPrivate::start(void*) (arg=0x55d9e9e97fa0) at thread/qthread_unix.cpp:360
#8  0x00007f2a1d0d76db in start_thread (arg=0x7f29fffff700) at pthread_create.c:463
#9  0x00007f2a1f41688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f2a07fff700 (LWP 29766)):
#0  0x00007f2a1ab41660 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2a1aafab18 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a1aafb4fb in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a1aafb6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2a1fdb3b9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2a00000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f2a1fd5406a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f2a07ffed70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f2a1fb6f3aa in QThread::exec() (this=this@entry=0x7f2a20c8bd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:531
#7  0x00007f2a20a140e5 in QDBusConnectionManager::run() (this=0x7f2a20c8bd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007f2a1fb70b52 in QThreadPrivate::start(void*) (arg=0x7f2a20c8bd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:360
#9  0x00007f2a1d0d76db in start_thread (arg=0x7f2a07fff700) at pthread_create.c:463
#10 0x00007f2a1f41688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f2a0edec700 (LWP 29765)):
#0  0x00007f2a1f409bf9 in __GI___poll (fds=0x7f2a0edebca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f2a1e801747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f2a1e80336a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f2a119cde10 in QXcbEventQueue::run() (this=0x55d9e9d10b50) at qxcbeventqueue.cpp:228
#4  0x00007f2a1fb70b52 in QThreadPrivate::start(void*) (arg=0x55d9e9d10b50) at thread/qthread_unix.cpp:360
#5  0x00007f2a1d0d76db in start_thread (arg=0x7f2a0edec700) at pthread_create.c:463
#6  0x00007f2a1f41688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f2a23ce9440 (LWP 29764)):
[KCrash Handler]
#6  0x00007f2a2151577b in KWindowInfo::KWindowInfo(KWindowInfo const&) () at /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#7  0x00007f29e6c0b6bc in Switcher::run(Plasma::RunnerContext const&, Plasma::QueryMatch const&) () at /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_switcher.so
#8  0x00007f29fd06a41b in Plasma::RunnerContext::run(Plasma::QueryMatch const&) () at /usr/lib/x86_64-linux-gnu/libKF5Runner.so.5
#9  0x00007f29fd06f566 in Plasma::RunnerManager::run(Plasma::QueryMatch const&) () at /usr/lib/x86_64-linux-gnu/libKF5Runner.so.5
#10 0x00007f29fd4d4d4a in  () at /usr/lib/x86_64-linux-gnu/libmilou.so.5
#11 0x00007f29fd4d2706 in Milou::ResultsModel::run(QModelIndex const&) () at /usr/lib/x86_64-linux-gnu/libmilou.so.5
#12 0x00007f29fd4dd7be in  () at /usr/lib/x86_64-linux-gnu/libmilou.so.5
#13 0x00007f29fd4dde45 in Milou::ResultsModel::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib/x86_64-linux-gnu/libmilou.so.5
#14 0x00007f2a2277e5ae in QQmlVMEMetaObject::metaCall(QObject*, QMetaObject::Call, int, void**) (this=0x55d9ea145120, o=<optimized out>, c=QMetaObject::InvokeMetaMethod, _id=95, a=0x7ffefb9a14c0) at qml/qqmlvmemetaobject.cpp:981
#15 0x00007f2a227d1e09 in QQmlObjectOrGadget::metacall(QMetaObject::Call, int, void**) const (this=this@entry=0x7ffefb9a1800, type=type@entry=QMetaObject::InvokeMetaMethod, index=<optimized out>, index@entry=95, argv=<optimized out>) at qml/qqmlpropertycache.cpp:1762
#16 0x00007f2a226d8895 in CallMethod(QQmlObjectOrGadget const&, int, int, int, int*, QV4::ExecutionEngine*, QV4::CallData*, QMetaObject::Call) (object=..., index=<optimized out>, returnType=returnType@entry=1, argCount=<optimized out>, argTypes=<optimized out>, engine=engine@entry=0x55d9e9ef3c80, callArgs=<optimized out>, callType=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:1295
#17 0x00007f2a226da3be in CallPrecise(QQmlObjectOrGadget const&, QQmlPropertyData const&, QV4::ExecutionEngine*, QV4::CallData*, QMetaObject::Call) (object=..., data=..., engine=engine@entry=0x55d9e9ef3c80, callArgs=callArgs@entry=0x7f29ff3c0658, callType=callType@entry=QMetaObject::InvokeMetaMethod) at jsruntime/qv4qobjectwrapper.cpp:1557
#18 0x00007f2a226db051 in QV4::QObjectMethod::callInternal(QV4::Value const*, QV4::Value const*, int) const (this=<optimized out>, thisObject=0x7f29ff3c05e0, argv=<optimized out>, argc=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:2118
#19 0x00007f2a2275cf76 in QV4::FunctionObject::call(QV4::Value const*, QV4::Value const*, int) const (argc=1, argv=0x7f29ff3c05f8, thisObject=0x7f29ff3c05e0, this=0x7ffefb9a1968) at jsruntime/qv4functionobject_p.h:202
#20 0x00007f2a2275cf76 in QV4::Runtime::method_callPropertyLookup(QV4::ExecutionEngine*, QV4::Value*, unsigned int, QV4::Value*, int) (engine=0x55d9e9ef3c80, base=0x7f29ff3c05e0, index=<optimized out>, argv=0x7f29ff3c05f8, argc=1) at jsruntime/qv4runtime.cpp:1473
#21 0x00007f29fc5367df in  ()
#22 0x0000000000000000 in  ()

Possible duplicates by query: bug 413263, bug 413261, bug 413188, bug 412876, bug 412459.

Reported using DrKonqi
Comment 1 Nate Graham 2021-01-08 20:26:15 UTC 
#6  0x00007f2a2151577b in KWindowInfo::KWindowInfo(KWindowInfo const&) () at /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#7  0x00007f29e6c0b6bc in Switcher::run(Plasma::RunnerContext const&, Plasma::QueryMatch const&) () at /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_switcher.so
#

Are you able to reproduce this issue with a newer version of KDE Frameworks?
Comment 2 Anton K 2021-01-13 09:37:10 UTC 
I haven't used this for a sometime, but it seems to be working well now. Thanks.

krunner 5.20.5