Bug 433397

Summary: Plasma crashes when backspacing in search
Product: [Plasma] plasmashell Reporter: rlee2878
Component: Application Launcher (Kickoff) widgetAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: mikel5764, nate, plasma-bugs-null
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.18.5   
Target Milestone: 1.0   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description rlee2878 2021-02-21 17:55:39 UTC 
Application: plasmashell (5.18.5)

Qt Version: 5.12.8
Frameworks Version: 5.68.0
Operating System: Linux 5.4.0-65-generic x86_64
Windowing system: X11
Distribution: Ubuntu 20.04.2 LTS

-- Information about the crash:
Note: the steps below probably require that /home is mounted on a relatively slow disk (e.g. an HDD). These steps also only work immediately after a system reboot, or alternatively, after the relevant files (not sure which exactly) are evicted from the in-memory disk cache.

Steps to reproduce:

1. Open the "Application Launcher".
2. Enter some text into the search bar (doesn't matter exactly what you put in).
3. Wait for plasmashell to read the required files off of the disk (which takes >10 seconds on my system). While the disk activity is happening,
4. Use backspace to delete all the text that you typed into search previously.
5. After plasmashell finishes reading files, it would normally display the search results. Instead, it crashes if step 4 is performed. It should do something more reasonable like returning to the default view instead.

The crash can be reproduced every time.

-- 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 0x7f327b8c9280 (LWP 1538))]

Thread 30 (Thread 0x7f31e67fc700 (LWP 1901)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x7f320c0029e0) at thread/qthread_unix.cpp:361
#11 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7f31e6ffd700 (LWP 1900)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x7f31ec005cf0) at thread/qthread_unix.cpp:361
#11 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7f31e77fe700 (LWP 1899)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x7f31ec005760) at thread/qthread_unix.cpp:361
#11 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7f31e7fff700 (LWP 1898)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b32da9 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x7f31ec0029e0) at thread/qthread_unix.cpp:361
#13 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#14 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7f3208ff9700 (LWP 1897)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x7f3204005310) at thread/qthread_unix.cpp:361
#11 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7f32097fa700 (LWP 1896)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x7f32000029e0) at thread/qthread_unix.cpp:361
#11 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7f3209ffb700 (LWP 1895)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf7bd411b0) at thread/qthread_unix.cpp:361
#11 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f320a7fc700 (LWP 1894)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf7bd6aa80) at thread/qthread_unix.cpp:361
#11 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f320affd700 (LWP 1893)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b32da9 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf7bd6aa40) at thread/qthread_unix.cpp:361
#13 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#14 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7f320b7fe700 (LWP 1892)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf7bd697c0) at thread/qthread_unix.cpp:361
#11 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f320bfff700 (LWP 1891)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x7f32040029e0) at thread/qthread_unix.cpp:361
#11 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f321cf23700 (LWP 1890)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x7f32100025e0) at thread/qthread_unix.cpp:361
#11 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f321d724700 (LWP 1889)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x7f32140029e0) at thread/qthread_unix.cpp:361
#11 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f321df25700 (LWP 1888)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b32da9 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf7bd69b50) at thread/qthread_unix.cpp:361
#13 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#14 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f321e726700 (LWP 1887)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b32da9 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf7bddf9b0) at thread/qthread_unix.cpp:361
#13 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#14 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f321ef27700 (LWP 1886)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7bd453c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7bd45370, cond=0x55bf7bd45398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7bd45398, mutex=0x55bf7bd45370) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7bd45370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7bd43db0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7bd4d4c8, mutex=0x55bf7bd43db0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3246b2f050 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3246b32d4e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3246b2e222 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3246b30cb3 in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf7be18d40) at thread/qthread_unix.cpp:361
#11 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f3238cf0700 (LWP 1880)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7a0fe6e4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7a0fe690, cond=0x55bf7a0fe6b8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7a0fe6b8, mutex=0x55bf7a0fe690) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7a0fe690) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7ba64ab0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7ba64ab8, mutex=0x55bf7ba64ab0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3280ffe109 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f3280ffe3ad in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf7ba64a30) at thread/qthread_unix.cpp:361
#9  0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f3239cba700 (LWP 1836)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7b1a4070) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7b1a4020, cond=0x55bf7b1a4048) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7b1a4048, mutex=0x55bf7b1a4020) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7b1a4020) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7b233cf0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7b233cf8, mutex=0x55bf7b233cf0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3280ffe109 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f3280ffe3ad in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf7b233c70) at thread/qthread_unix.cpp:361
#9  0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f323abdf700 (LWP 1755)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf7a125dc0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf7a125d70, cond=0x55bf7a125d98) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf7a125d98, mutex=0x55bf7a125d70) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf7a125d70) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf7a321b40, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf7a321b48, mutex=0x55bf7a321b40, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3280ffe109 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f3280ffe3ad in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf7a321ac0) at thread/qthread_unix.cpp:361
#9  0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f323bec9700 (LWP 1747)):
#0  0x00007f327dbbd70d in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f327dbbf165 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f327dbc064b in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f327dbc10bb in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f327dbc12c3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f327f539583 in QEventDispatcherGlib::processEvents (this=0x7f3234000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f327f4e04db in QEventLoop::exec (this=this@entry=0x7f323bec8d60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7  0x00007f327f318785 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8  0x00007f32505950bc in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#9  0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf7a63eb00) at thread/qthread_unix.cpp:361
#10 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f32528bc700 (LWP 1727)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf79200a60) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf79200a10, cond=0x55bf79200a38) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf79200a38, mutex=0x55bf79200a10) at pthread_cond_wait.c:638
#3  0x00007f327f31fb0f in QWaitConditionPrivate::wait (deadline=..., this=0x55bf79200a10) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55bf79a63ca0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f327f31fc01 in QWaitCondition::wait (this=0x55bf79a63ca8, mutex=0x55bf79a63ca0, time=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f3280ffe109 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f3280ffe3ad in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf79a63c20) at thread/qthread_unix.cpp:361
#9  0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f32530d3700 (LWP 1722)):
#0  __GI___libc_read (nbytes=16, buf=0x7f32530d2b50, fd=18) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=18, buf=0x7f32530d2b50, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f327dc0989f in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f327dbc0cde in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f327dbc1132 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f327dbc12c3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f327f539583 in QEventDispatcherGlib::processEvents (this=0x7f3248000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#7  0x00007f327f4e04db in QEventLoop::exec (this=this@entry=0x7f32530d2d60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#8  0x00007f327f318785 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#9  0x00007f3280f71e1a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf78cd4cb0) at thread/qthread_unix.cpp:361
#11 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f3263233700 (LWP 1633)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf784c1718) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf784c16c8, cond=0x55bf784c16f0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf784c16f0, mutex=0x55bf784c16c8) at pthread_cond_wait.c:638
#3  0x00007f326a1e7b5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f326a1e775b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f3263a34700 (LWP 1632)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf784c1718) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf784c16c8, cond=0x55bf784c16f0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf784c16f0, mutex=0x55bf784c16c8) at pthread_cond_wait.c:638
#3  0x00007f326a1e7b5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f326a1e775b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f3264235700 (LWP 1631)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf784c1718) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf784c16c8, cond=0x55bf784c16f0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf784c16f0, mutex=0x55bf784c16c8) at pthread_cond_wait.c:638
#3  0x00007f326a1e7b5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f326a1e775b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f3264a36700 (LWP 1630)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bf784c1718) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bf784c16c8, cond=0x55bf784c16f0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bf784c16f0, mutex=0x55bf784c16c8) at pthread_cond_wait.c:638
#3  0x00007f326a1e7b5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f326a1e775b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f3278b92700 (LWP 1620)):
#0  0x00007f327dc0e24d in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f327dbc1151 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f327dbc12c3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f327f539583 in QEventDispatcherGlib::processEvents (this=0x7f3270000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f327f4e04db in QEventLoop::exec (this=this@entry=0x7f3278b91d80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007f327f318785 in QThread::exec (this=this@entry=0x55bf787779c0) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007f3280c8b1a9 in QQmlThreadPrivate::run (this=0x55bf787779c0) at qml/ftw/qqmlthread.cpp:148
#7  0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf787779c0) at thread/qthread_unix.cpp:361
#8  0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f3279e3a700 (LWP 1558)):
#0  0x00007ffe9dddc6cb in ?? ()
#1  0x00007ffe9dddc918 in clock_gettime ()
#2  0x00007f327ef66235 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7f3279e39ae0) at ../sysdeps/unix/sysv/linux/clock_gettime.c:38
#3  0x00007f327f538e45 in qt_clock_gettime (ts=0x7f3279e39ae0, clock=1) at kernel/qelapsedtimer_unix.cpp:175
#4  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#5  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#6  0x00007f327f5376dd in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f326c004d10) at kernel/qtimerinfo_unix.cpp:91
#7  0x00007f327f537cb9 in QTimerInfoList::timerWait (this=0x7f326c004d10, tm=...) at kernel/qtimerinfo_unix.cpp:388
#8  0x00007f327f5392d6 in timerSourcePrepareHelper (timeout=0x7f3279e39ba4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:161
#9  timerSourcePrepare (source=<optimized out>, timeout=0x7f3279e39ba4) at kernel/qeventdispatcher_glib.cpp:165
#10 0x00007f327dbc070f in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f327dbc10bb in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f327dbc12c3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f327f539583 in QEventDispatcherGlib::processEvents (this=0x7f326c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#14 0x00007f327f4e04db in QEventLoop::exec (this=this@entry=0x7f3279e39d70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#15 0x00007f327f318785 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#16 0x00007f328054cefa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#17 0x00007f327f3199d2 in QThreadPrivate::start (arg=0x7f32805cfd80) at thread/qthread_unix.cpp:361
#18 0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#19 0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f327aa29700 (LWP 1551)):
#0  0x00007f327ef9baff in __GI___poll (fds=0x7f327aa28ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3281404c1a in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f328140690a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f327b20b298 in QXcbEventQueue::run (this=0x55bf784c7e40) at qxcbeventqueue.cpp:228
#4  0x00007f327f3199d2 in QThreadPrivate::start (arg=0x55bf784c7e40) at thread/qthread_unix.cpp:361
#5  0x00007f327e7be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f327efa8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f327b8c9280 (LWP 1538)):
[KCrash Handler]
#6  0x00007f3280af5692 in QQmlData::wasDeleted (object=0x55bf7c208fb0) at ../../include/QtQml/5.12.8/QtQml/private/../../../../../src/qml/qml/qqmldata_p.h:338
#7  QV4::QObjectWrapper::wrap (engine=0x55bf78774410, object=0x55bf7c208fb0) at ../../include/QtQml/5.12.8/QtQml/private/../../../../../src/qml/jsruntime/qv4qobjectwrapper_p.h:215
#8  0x00007f3280b9f138 in QV4::ExecutionEngine::fromVariant (this=0x55bf78774410, variant=...) at jsruntime/qv4engine.cpp:1517
#9  0x00007f3280b17ee7 in loadProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData const&) () at jsruntime/qv4qobjectwrapper.cpp:207
#10 0x00007f3280b38347 in QV4::Moth::VME::interpret (frame=0x7ffe9dda9160, engine=0x55bf78774410, code=0x7f32446d25f9 ":#nL\030.$\030\a.%\030\b\024") at jsruntime/qv4vme_moth.cpp:621
#11 0x00007f3280b3d2c7 in QV4::Moth::VME::exec (frame=frame@entry=0x7ffe9dda9160, engine=engine@entry=0x55bf78774410) at jsruntime/qv4vme_moth.cpp:447
#12 0x00007f3280aca64f in QV4::Function::call (this=this@entry=0x55bf7bcbd410, thisObject=<optimized out>, argv=argv@entry=0x7f326bbc1500, argc=<optimized out>, context=<optimized out>) at jsruntime/qv4function.cpp:68
#13 0x00007f3280c54587 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x55bf7bcfce40, callData=callData@entry=0x7f326bbc14d0, isUndefined=isUndefined@entry=0x0) at ../../include/QtQml/5.12.8/QtQml/private/../../../../../src/qml/jsruntime/qv4value_p.h:194
#14 0x00007f3280bf338c in QQmlBoundSignalExpression::evaluate (this=<optimized out>, a=0x0) at ../../include/QtQml/5.12.8/QtQml/private/../../../../../src/qml/jsruntime/qv4jscall_p.h:95
#15 0x00007f3280bf4528 in QQmlBoundSignal_callback (e=0x55bf7bd3c0e0, a=0x0) at ../../include/QtQml/5.12.8/QtQml/private/../../../../../src/qml/qml/qqmlboundsignalexpressionpointer_p.h:69
#16 0x00007f3280c3774d in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:104
#17 0x00007f3280bd3715 in QQmlData::signalEmitted (object=0x55bf7bcdf8d0, index=26, a=0x0) at qml/qqmlengine.cpp:883
#18 0x00007f327f50cbd3 in QMetaObject::activate (sender=0x55bf7bcdf8d0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:121
#19 0x00007f325043c55f in RunnerModel::matchesChanged (this=0x55bf7bcdf8d0, matches=...) at ./applets/kicker/plugin/runnermodel.cpp:244
#20 0x00007f327f50d458 in QtPrivate::QSlotObjectBase::call (a=0x7ffe9ddab040, r=0x55bf7bcdf8d0, this=0x55bf7bd47c20) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#21 QMetaObject::activate (sender=0x55bf7bd46f10, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3784
#22 0x00007f32500b0696 in Plasma::RunnerManager::matchesChanged (this=this@entry=0x55bf7bd46f10, _t1=...) at ./obj-x86_64-linux-gnu/src/KF5Runner_autogen/include/moc_runnermanager.cpp:195
#23 0x00007f32500b4623 in Plasma::RunnerManagerPrivate::matchesChanged (this=<optimized out>) at ./src/runnermanager.cpp:101
#24 Plasma::RunnerManager::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at ./obj-x86_64-linux-gnu/src/KF5Runner_autogen/include/moc_runnermanager.cpp:126
#25 0x00007f327f50d300 in QMetaObject::activate (sender=0x55bf7bd4d6b8, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3804
#26 0x00007f327f51a51e in QTimer::timeout (this=<optimized out>, _t1=...) at .moc/moc_qtimer.cpp:204
#27 0x00007f327f50dcf5 in QObject::event (this=0x55bf7bd4d6b8, e=<optimized out>) at kernel/qobject.cpp:1283
#28 0x00007f327ff55a66 in QApplicationPrivate::notify_helper (this=this@entry=0x55bf784c1e80, receiver=receiver@entry=0x55bf7bd4d6b8, e=e@entry=0x7ffe9ddab510) at kernel/qapplication.cpp:3700
#29 0x00007f327ff5f0f0 in QApplication::notify (this=0x7ffe9ddab890, receiver=0x55bf7bd4d6b8, e=0x7ffe9ddab510) at kernel/qapplication.cpp:3446
#30 0x00007f327f4e193a in QCoreApplication::notifyInternal2 (receiver=0x55bf7bd4d6b8, event=0x7ffe9ddab510) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:142
#31 0x00007f327f5388b0 in QTimerInfoList::activateTimers (this=0x55bf7854f600) at kernel/qtimerinfo_unix.cpp:643
#32 0x00007f327f5391e4 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:182
#33 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:229
#34 0x00007f327dbc0f9d in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f327dbc1220 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f327dbc12c3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f327f539565 in QEventDispatcherGlib::processEvents (this=0x55bf7853a950, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#38 0x00007f327f4e04db in QEventLoop::exec (this=this@entry=0x7ffe9ddab750, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#39 0x00007f327f4e8246 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#40 0x000055bf7821ab25 in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:228
[Inferior 1 (process 1538) detached]

Possible duplicates by query: bug 432551, bug 431600, bug 430909, bug 426905, bug 425987.

Reported using DrKonqi
Comment 1 Nate Graham 2021-02-22 21:11:23 UTC 

*** This bug has been marked as a duplicate of bug 414920 ***