Bug 415662 - Dismissing Pop-Up Notification Crashed Plasma
Summary: Dismissing Pop-Up Notification Crashed Plasma
Status: RESOLVED FIXED
Alias: None
Product: plasmashell
Classification: Plasma
Component: generic-crash (show other bugs)
Version: 5.16.5
Platform: Ubuntu Linux
: NOR crash
Target Milestone: 1.0
Assignee: Plasma Bugs List
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2019-12-29 01:02 UTC by CRC
Modified: 2021-03-09 03:26 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In:


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Description CRC 2019-12-29 01:02:37 UTC
Application: plasmashell (5.16.5)

Qt Version: 5.12.4
Frameworks Version: 5.62.0
Operating System: Linux 5.3.0-24-generic x86_64
Distribution: Ubuntu 19.10

-- Information about the crash:
- What I was doing when the application crashed: 

Playing with panels. Added a blank panel on left of screen, and removed it. Panel was made transparent with 'Panel Transparency Button.'  Panel was removed with GUI "Remove option." No issues. 

Plasma crashed when I dismissed the "Panel Removed: Undo?" notification by clicking on the 'X' dismiss button. Notification was displayed longer than the 5 second set time-out. No other foreground programs running.

-- 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 0x7fa3b4fba880 (LWP 2179))]

Thread 33 (Thread 0x7fa2f1578700 (LWP 10917)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5634448f31b4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5634448f3160, cond=0x5634448f3188) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x5634448f3188, mutex=0x5634448f3160) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3ba6747b9 in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa3ba674a1a in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 32 (Thread 0x7fa2fa3c0700 (LWP 10876)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5634400f7b84) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5634400f7b30, cond=0x5634400f7b58) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x5634400f7b58, mutex=0x5634400f7b30) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3ba6747b9 in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa3ba674a1a in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 31 (Thread 0x7fa2f98c0700 (LWP 10272)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56343a161b84) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56343a161b30, cond=0x56343a161b58) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x56343a161b58, mutex=0x56343a161b30) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3ba6747b9 in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa3ba674a1a in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7fa355767700 (LWP 10268)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56343835dd90) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56343835dd40, cond=0x56343835dd68) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x56343835dd68, mutex=0x56343835dd40) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3ba6747b9 in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa3ba674a1a in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7fa2faffd700 (LWP 3607)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56343a2725f4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56343a2725a0, cond=0x56343a2725c8) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x56343a2725c8, mutex=0x56343a2725a0) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3a00d3ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007fa3a00d7c3e in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007fa3a00d7c99 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007fa3a00d7c99 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007fa3a00d7c99 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007fa3a00d5b83 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#17 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7fa2fb7fe700 (LWP 3606)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56343a2725f4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56343a2725a0, cond=0x56343a2725c8) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x56343a2725c8, mutex=0x56343a2725a0) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3a00d3ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007fa3a00d7c3e in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007fa3a00d7c99 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007fa3a00d5b83 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#13 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7fa2f3fff700 (LWP 3605)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56343a2725f4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56343a2725a0, cond=0x56343a2725c8) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x56343a2725c8, mutex=0x56343a2725a0) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3a00d3ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007fa3a00d7c3e in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007fa3a00d7c99 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007fa3a00d5b83 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#13 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7fa2fbfff700 (LWP 3604)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56343a2725f4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56343a2725a0, cond=0x56343a2725c8) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x56343a2725c8, mutex=0x56343a2725a0) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3a00d3ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007fa3a00d7c3e in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007fa3a00d7c99 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007fa3a00d5b83 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#13 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7fa314995700 (LWP 3603)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56343a2725f4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56343a2725a0, cond=0x56343a2725c8) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x56343a2725c8, mutex=0x56343a2725a0) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3a00d3ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007fa3a00d7c3e in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007fa3a00d7c99 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007fa3a00d5b83 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#13 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7fa316c9c700 (LWP 3602)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56343a2725f4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56343a2725a0, cond=0x56343a2725c8) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x56343a2725c8, mutex=0x56343a2725a0) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3a00d3ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007fa3a00d7c3e in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007fa3a00d5b83 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fa37cc2c700 (LWP 3601)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56343a2725f4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56343a2725a0, cond=0x56343a2725c8) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x56343a2725c8, mutex=0x56343a2725a0) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3a00d3ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007fa3a00d7c3e in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007fa3a00d7c99 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007fa3a00d5b83 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#13 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fa35607c700 (LWP 3600)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56343a2725f4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56343a2725a0, cond=0x56343a2725c8) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x56343a2725c8, mutex=0x56343a2725a0) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3a00d3ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007fa3a00d7c3e in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007fa3a00d7c99 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007fa3a00d3072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007fa3a00d5b83 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#13 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fa37d42d700 (LWP 3594)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56343bc4d724) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56343bc4d6d0, cond=0x56343bc4d6f8) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x56343bc4d6f8, mutex=0x56343bc4d6d0) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3ba6747b9 in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa3ba674a1a in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fa317bff700 (LWP 2419)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56343b4cdb40) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56343b4cdaf0, cond=0x56343b4cdb18) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x56343b4cdb18, mutex=0x56343b4cdaf0) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3ba6747b9 in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa3ba674a1a in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fa3549e7700 (LWP 2418)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56343addeec0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56343addee70, cond=0x56343addee98) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x56343addee98, mutex=0x56343addee70) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3ba6747b9 in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa3ba674a1a in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fa356dbe700 (LWP 2405)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fa356dbdc48) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7fa356dbdbf8, cond=0x7fa356dbdc20) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x7fa356dbdc20, mutex=0x7fa356dbdbf8) at pthread_cond_wait.c:638
#3  0x00007fa38795d03d in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa38795dac0 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa38795db63 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa38791f718 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa387921f96 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa387922318 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa38795fc75 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fa3577fe700 (LWP 2397)):
#0  0x00007fa3b84c92ac in __GI___libc_read (nbytes=16, buf=0x7fa3577fdb10, fd=78) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007fa3b84c92ac in __GI___libc_read (fd=78, buf=0x7fa3577fdb10, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fa3b724663f in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa3b71fe58e in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa3b71fe9e2 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa3b71feb73 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fa3b8a746c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa3b8a1b63b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa3b8854a75 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fa35d233700 (LWP 2396)):
#0  0x00007fa3b84cdc2f in __GI___poll (fds=0x7fa3280025e0, nfds=1, timeout=1261722) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa3b71fea3e in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa3b71feb73 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa3b8a746c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b8a1b63b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3b8854a75 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa35c37101c in KCupsConnection::run() () at /lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fa35dffb700 (LWP 2309)):
#0  0x00007fa39a0bc26a in pa_fdsem_after_poll () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.0.so
#1  0x00007fa39a0d3ff1 in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.0.so
#2  0x00007fa39a13cb93 in pa_mainloop_dispatch () at /lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fa39a13cec2 in pa_mainloop_iterate () at /lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fa39a13cf60 in pa_mainloop_run () at /lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fa39a14b10d in  () at /lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fa39a0e337c in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.0.so
#7  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#8  0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fa35e7fc700 (LWP 2306)):
#0  0x00007fa3b7cdf6e0 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fa35e7fbaf0, clockid=<optimized out>, expected=0, futex_word=0x7fa35e7fbc38) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
#1  0x00007fa3b7cdf6e0 in __pthread_cond_wait_common (abstime=0x7fa35e7fbaf0, clockid=<optimized out>, mutex=0x7fa35e7fbbe8, cond=0x7fa35e7fbc10) at pthread_cond_wait.c:520
#2  0x00007fa3b7cdf6e0 in __pthread_cond_timedwait (cond=0x7fa35e7fbc10, mutex=0x7fa35e7fbbe8, abstime=0x7fa35e7fbaf0) at pthread_cond_wait.c:656
#3  0x00007fa38795d10b in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa38795dab2 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa3878dace8 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa3878fcf0b in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa38792ed9b in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa38795fc75 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fa35effd700 (LWP 2305)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563439d8e008) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x563439d8df48, cond=0x563439d8dfe0) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x563439d8dfe0, mutex=0x563439d8df48) at pthread_cond_wait.c:638
#3  0x00007fa38795d03d in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa388233598 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa387930243 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa38795fc75 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#8  0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fa35f7fe700 (LWP 2304)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fa35f7fdc48) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7fa35f7fdbf8, cond=0x7fa35f7fdc20) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x7fa35f7fdc20, mutex=0x7fa35f7fdbf8) at pthread_cond_wait.c:638
#3  0x00007fa38795d03d in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa38795dac0 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa38795db63 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa38791f718 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa387921f96 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa3879222b8 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa38795fc75 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fa357fff700 (LWP 2303)):
#0  0x00007fa3b84c934f in __GI___libc_write (nbytes=39, buf=0x7fa357ffbf80, fd=2) at ../sysdeps/unix/sysv/linux/write.c:26
#1  0x00007fa3b84c934f in __GI___libc_write (fd=2, buf=0x7fa357ffbf80, nbytes=39) at ../sysdeps/unix/sysv/linux/write.c:24
#2  0x00007fa3b8449fed in _IO_new_file_write (f=0x7fa3b85a35c0 <_IO_2_1_stderr_>, data=0x7fa357ffbf80, n=39) at fileops.c:1180
#3  0x00007fa3b844a908 in new_do_write (to_do=<optimized out>, data=0x7fa357ffbf80 "[warn] epoll_wait: Bad file descriptor\n", fp=0x7fa3b85a35c0 <_IO_2_1_stderr_>) at libioP.h:948
#4  0x00007fa3b844a908 in _IO_new_file_xsputn (n=39, data=<optimized out>, f=<optimized out>) at fileops.c:1259
#5  0x00007fa3b844a908 in _IO_new_file_xsputn (f=0x7fa3b85a35c0 <_IO_2_1_stderr_>, data=<optimized out>, n=39) at fileops.c:1201
#6  0x00007fa3b8435023 in buffered_vfprintf (s=s@entry=0x7fa3b85a35c0 <_IO_2_1_stderr_>, format=format@entry=0x7fa3995ba6a8 "[%s] %s\n", args=args@entry=0x7fa357ffe540, mode_flags=mode_flags@entry=2) at ../libio/libioP.h:948
#7  0x00007fa3b8431df4 in __vfprintf_internal (s=0x7fa3b85a35c0 <_IO_2_1_stderr_>, format=0x7fa3995ba6a8 "[%s] %s\n", ap=ap@entry=0x7fa357ffe540, mode_flags=2) at vfprintf-internal.c:1346
#8  0x00007fa3b84e9483 in ___fprintf_chk (fp=<optimized out>, flag=<optimized out>, format=<optimized out>) at fprintf_chk.c:33
#9  0x00007fa3995a29ad in event_logv_ () at /lib/x86_64-linux-gnu/libevent-2.1.so.6
#10 0x00007fa3995a2b44 in event_warn () at /lib/x86_64-linux-gnu/libevent-2.1.so.6
#11 0x00007fa3995a446c in  () at /lib/x86_64-linux-gnu/libevent-2.1.so.6
#12 0x00007fa39959a114 in event_base_loop () at /lib/x86_64-linux-gnu/libevent-2.1.so.6
#13 0x00007fa387963429 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007fa3878fcf0b in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007fa3872acc18 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#16 0x00007fa38792ed9b in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#17 0x00007fa38795fc75 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#18 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#19 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fa35ffff700 (LWP 2302)):
#0  0x00007fa3b7cdf6e0 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fa35fffeaf0, clockid=<optimized out>, expected=0, futex_word=0x7fa35fffec38) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
#1  0x00007fa3b7cdf6e0 in __pthread_cond_wait_common (abstime=0x7fa35fffeaf0, clockid=<optimized out>, mutex=0x7fa35fffebe8, cond=0x7fa35fffec10) at pthread_cond_wait.c:520
#2  0x00007fa3b7cdf6e0 in __pthread_cond_timedwait (cond=0x7fa35fffec10, mutex=0x7fa35fffebe8, abstime=0x7fa35fffeaf0) at pthread_cond_wait.c:656
#3  0x00007fa38795d10b in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa38795dab2 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa38795dba6 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa38791f705 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa387921f96 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa387922258 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa38795fc75 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fa37dc2e700 (LWP 2299)):
#0  0x00007fa3b7cdf6e0 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fa37dc2daf0, clockid=<optimized out>, expected=0, futex_word=0x7fa37dc2dc38) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
#1  0x00007fa3b7cdf6e0 in __pthread_cond_wait_common (abstime=0x7fa37dc2daf0, clockid=<optimized out>, mutex=0x7fa37dc2dbe8, cond=0x7fa37dc2dc10) at pthread_cond_wait.c:520
#2  0x00007fa3b7cdf6e0 in __pthread_cond_timedwait (cond=0x7fa37dc2dc10, mutex=0x7fa37dc2dbe8, abstime=0x7fa37dc2daf0) at pthread_cond_wait.c:656
#3  0x00007fa38795d10b in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fa38795dab2 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fa38795dba6 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fa38791f705 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fa387921f96 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa387922258 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa38795fc75 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fa37e42f700 (LWP 2298)):
#0  0x00007fa3b8401240 in __GI_getenv (name=0x7fa3b856e49d "NGUAGE", name@entry=0x7fa3b856e49b "LANGUAGE") at getenv.c:75
#1  0x00007fa3b83f112c in guess_category_value (categoryname=0x7fa3b8555493 <_nl_category_names+51> "LC_MESSAGES", category=5) at dcigettext.c:1566
#2  0x00007fa3b83f112c in __dcigettext (domainname=0x7fa3b856e46e <_libc_intl_domainname> "libc", msgid1=0x7fa3b856e915 "Bad file descriptor", msgid2=msgid2@entry=0x0, plural=plural@entry=0, n=n@entry=0, category=category@entry=5) at dcigettext.c:648
#3  0x00007fa3b83efa63 in __GI___dcgettext (domainname=<optimized out>, msgid=<optimized out>, category=category@entry=5) at dcgettext.c:47
#4  0x00007fa3b845a6a2 in __GI___strerror_r (errnum=errnum@entry=9, buf=buf@entry=0x0, buflen=buflen@entry=0) at _strerror.c:71
#5  0x00007fa3b845a5c3 in strerror (errnum=9) at strerror.c:31
#6  0x00007fa3995a2b31 in event_warn () at /lib/x86_64-linux-gnu/libevent-2.1.so.6
#7  0x00007fa3995a446c in  () at /lib/x86_64-linux-gnu/libevent-2.1.so.6
#8  0x00007fa39959a114 in event_base_loop () at /lib/x86_64-linux-gnu/libevent-2.1.so.6
#9  0x00007fa387963564 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa3878fcf0b in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fa387925e38 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fa38792ed9b in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007fa38795fc75 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#15 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fa37f431700 (LWP 2296)):
#0  0x00007fa3b843516f in buffered_vfprintf (s=s@entry=0x7fa3b85a35c0 <_IO_2_1_stderr_>, format=format@entry=0x7fa3995ba6a8 "[%s] %s\n", args=args@entry=0x7fa37f430560, mode_flags=mode_flags@entry=2) at vfprintf-internal.c:2401
#1  0x00007fa3b8431df4 in __vfprintf_internal (s=0x7fa3b85a35c0 <_IO_2_1_stderr_>, format=0x7fa3995ba6a8 "[%s] %s\n", ap=ap@entry=0x7fa37f430560, mode_flags=2) at vfprintf-internal.c:1346
#2  0x00007fa3b84e9483 in ___fprintf_chk (fp=<optimized out>, flag=<optimized out>, format=<optimized out>) at fprintf_chk.c:33
#3  0x00007fa3995a29ad in event_logv_ () at /lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fa3995a2b44 in event_warn () at /lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fa3995a446c in  () at /lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fa39959a114 in event_base_loop () at /lib/x86_64-linux-gnu/libevent-2.1.so.6
#7  0x00007fa387963429 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fa3878fcf0b in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fa38792ed9b in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fa38795fc75 in  () at /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#12 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fa39b7fe700 (LWP 2282)):
#0  0x00007fa3baeb4b5d in __tls_get_addr () at /lib64/ld-linux-x86-64.so.2
#1  0x00007fa3b885516a in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fa3b8a7458e in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fa3b71fdfbf in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa3b71fe96b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa3b71feb73 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fa3b8a746c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa3b8a1b63b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa3b8854a75 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fa3ba5ec8aa in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#12 0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fa39bfff700 (LWP 2281)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563437f3ba10) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x563437f3b9c0, cond=0x563437f3b9e8) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x563437f3b9e8, mutex=0x563437f3b9c0) at pthread_cond_wait.c:638
#3  0x00007fa3b885bdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b885bee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3ba6747b9 in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa3ba674a1a in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fa3a3338700 (LWP 2274)):
#0  0x00007fa3b7cdf2c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563437d49f88) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa3b7cdf2c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x563437d49f38, cond=0x563437d49f60) at pthread_cond_wait.c:508
#2  0x00007fa3b7cdf2c6 in __pthread_cond_wait (cond=0x563437d49f60, mutex=0x563437d49f38) at pthread_cond_wait.c:638
#3  0x00007fa3a381e97b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fa3a381e59b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fa3b20b7700 (LWP 2247)):
#0  0x00007fa3b84cdc2f in __GI___poll (fds=0x7fa3a80025e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa3b71fea3e in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa3b71feb73 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa3b8a746c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b8a1b63b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3b8854a75 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa3ba317319 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fa3b33c6700 (LWP 2229)):
#0  0x00007fa3b84cdc2f in __GI___poll (fds=0x7fa3a40029e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa3b71fea3e in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa3b71feb73 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa3b8a746c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa3b8a1b63b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa3b8854a75 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa3b9339efa in  () at /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fa3b8855cc2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa3b7cd8669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa3b84da323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fa3b4fba880 (LWP 2179)):
[KCrash Handler]
#6  0x00007fa3ba6cbe05 in QQuickWindow::mouseGrabberItem() const () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fa3ba6cdf1c in QQuickWindowPrivate::removeGrabber(QQuickItem*, bool, bool) () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007fa3ba6b355a in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007fa3ba6b3593 in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007fa3ba6b934b in QQuickItem::setParentItem(QQuickItem*) () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fa3ba6b9a2c in QQuickItem::~QQuickItem() () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007fa3ba6dc349 in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007fa3bae3a226 in PlasmaQuick::AppletQuickItem::~AppletQuickItem() () at /lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#14 0x00007fa3b0e0897d in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#15 0x00007fa3b8a4617e in QObjectPrivate::deleteChildren() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fa3b8a5075f in QObject::~QObject() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fa3b0e046d8 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#18 0x00007fa3ba9cbd3f in  () at /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#19 0x00007fa3ba9cbf4d in  () at /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#20 0x00007fa3ba9b4b7d in Plasma::Applet::~Applet() () at /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#21 0x00007fa3ba9b4bad in Plasma::Applet::~Applet() () at /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#22 0x00007fa3b8a4617e in QObjectPrivate::deleteChildren() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fa3b8a5075f in QObject::~QObject() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007fa3ba9ba2ad in Plasma::Containment::~Containment() () at /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#25 0x00007fa3b8a48cd4 in QObject::event(QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007fa3b95b8a86 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007fa3b95c1e00 in QApplication::notify(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007fa3b8a1ca9a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007fa3b8a1f718 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007fa3b8a750a7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007fa3b71fe84d in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007fa3b71fead0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fa3b71feb73 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fa3b8a746a5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007fa3b8a1b63b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007fa3b8a233a6 in QCoreApplication::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x0000563435eb8774 in  ()
#38 0x00007fa3b83df1e3 in __libc_start_main (main=0x563435eb7c20, argc=1, argv=0x7fffa0896398, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffa0896388) at ../csu/libc-start.c:308
#39 0x0000563435eb8bfe in _start ()
[Inferior 1 (process 2179) detached]

Reported using DrKonqi
Comment 1 Nate Graham 2021-03-09 02:11:26 UTC
Does this still happen to you in either Plasma 5.18 (the current LTS version) or Plasma 5.21 (the latest released version)?
Comment 2 Cameron Cumberland 2021-03-09 02:40:42 UTC
(In reply to Nate Graham from comment #1)
> Does this still happen to you in either Plasma 5.18 (the current LTS
> version) or Plasma 5.21 (the latest released version)?

Nate

I had to re-look at this old bug to see! I have moved systems, but still use KDE Plasma with Signal flatpak, and have received one or two Segfaults, but none of them have resulted in either application failure or graphical freezes (I didn't look closely at what exactly was throwing the error), without the notification I would not have known anything went wrong. 

I'll see if I can replicate it and post to this bug-tracking ID next time it happens.

The graphical bug as described here has not occurred since that I remember, and not at all in >5.19 versions of Plasma.
Comment 3 Nate Graham 2021-03-09 03:26:44 UTC
Cool, thanks. Let's call it fixed for now, then. :)