Bug 450576

Summary: desktop crashed and inmediately recovered
Product: [Plasma] plasmashell Reporter: José Alberto González <josealbertogonzalez>
Component: generalAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: crash CC: kde, qydwhotmail
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.24.1   
Target Milestone: 1.0   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description José Alberto González 2022-02-19 15:47:44 UTC 
Application: plasmashell (5.24.1)

Qt Version: 5.15.3
Frameworks Version: 5.92.0
Operating System: Linux 5.4.0-53-generic x86_64
Windowing System: X11
Distribution: KDE neon Testing Edition
DrKonqi: 5.24.1 [KCrashBackend]

-- Information about the crash:
- What I was doing when the application crashed:
apps Im usin nicotine+
telegram
firefox
dolphin


- Unusual behavior I noticed:
main bar missing for a few seconds

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault

[New LWP 1546]
[New LWP 1570]
[New LWP 1650]
[New LWP 1701]
[New LWP 1990]
[New LWP 1996]
[New LWP 2003]
[New LWP 2033]
[New LWP 2034]
[New LWP 8287]
[New LWP 21585]
[New LWP 21586]
[New LWP 21589]
[New LWP 21590]
[New LWP 21591]
[New LWP 21592]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f9f61fbbaff in __GI___poll (fds=0x7fff47cb79b8, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
__preamble__
[Current thread is 1 (Thread 0x7f9f5e0d09c0 (LWP 1500))]

Thread 17 (Thread 0x7f9f15c81700 (LWP 21592)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e7f29ec894) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55e7f29ec840, cond=0x55e7f29ec868) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55e7f29ec868, mutex=0x55e7f29ec840) at pthread_cond_wait.c:647
#3  0x00007f9f6234e6db in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55e7f29ec840) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55e7f8780540, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f9f44164920 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9f44165dbe in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9f44163ae2 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9f44162bc3 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f9f62348543 in QThreadPrivate::start(void*) (arg=0x7f9f080041d0) at thread/qthread_unix.cpp:331
#10 0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f9f16482700 (LWP 21591)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e7f29ec894) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55e7f29ec840, cond=0x55e7f29ec868) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55e7f29ec868, mutex=0x55e7f29ec840) at pthread_cond_wait.c:647
#3  0x00007f9f6234e6db in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55e7f29ec840) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55e7f8780540, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f9f44164920 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9f44165dbe in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9f44163ae2 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9f44162bc3 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f9f62348543 in QThreadPrivate::start(void*) (arg=0x55e7f928ffa0) at thread/qthread_unix.cpp:331
#10 0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f9f16c83700 (LWP 21590)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e7f29ec894) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55e7f29ec840, cond=0x55e7f29ec868) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55e7f29ec868, mutex=0x55e7f29ec840) at pthread_cond_wait.c:647
#3  0x00007f9f6234e6db in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55e7f29ec840) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55e7f8780540, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f9f44164920 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9f44165dbe in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9f44163ae2 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9f44162bc3 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f9f62348543 in QThreadPrivate::start(void*) (arg=0x55e7f928fa20) at thread/qthread_unix.cpp:331
#10 0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f9f17484700 (LWP 21589)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e7f29ec894) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55e7f29ec840, cond=0x55e7f29ec868) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55e7f29ec868, mutex=0x55e7f29ec840) at pthread_cond_wait.c:647
#3  0x00007f9f6234e6db in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55e7f29ec840) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55e7f8780540, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f9f44164920 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9f44165dbe in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9f44163ae2 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9f44162bc3 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f9f62348543 in QThreadPrivate::start(void*) (arg=0x55e7fb00dbf0) at thread/qthread_unix.cpp:331
#10 0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f9f17fff700 (LWP 21586)):
#0  __GI___libc_read (nbytes=16, buf=0x7f9f17ffeb10, fd=41) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=41, buf=0x7f9f17ffeb10, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f9f60896b2f in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9f6084debe in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9f6084e312 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9f6084e6f3 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9f3f73cf8a in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x00007f9f60877ad1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f9f2a07f700 (LWP 21585)):
#0  0x00007f9f61fbbaff in __GI___poll (fds=0x55e7f92cdc40, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f9f6084e36e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9f6084e4a3 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9f6084e4f1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9f60877ad1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f9f3ffff700 (LWP 8287)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e7f87cacf0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55e7f87caca0, cond=0x55e7f87cacc8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55e7f87cacc8, mutex=0x55e7f87caca0) at pthread_cond_wait.c:647
#3  0x00007f9f6234e6db in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55e7f87caca0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55e7f68f97f0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f9f63fc2c44 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f9f63fc30b9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f9f62348543 in QThreadPrivate::start(void*) (arg=0x55e7f68f9750) at thread/qthread_unix.cpp:331
#8  0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f9f2aac6700 (LWP 2034)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e7f66b0390) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55e7f66b0340, cond=0x55e7f66b0368) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55e7f66b0368, mutex=0x55e7f66b0340) at pthread_cond_wait.c:647
#3  0x00007f9f6234e6db in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55e7f66b0340) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55e7f693eaf0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f9f63fc2c44 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f9f63fc30b9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f9f62348543 in QThreadPrivate::start(void*) (arg=0x55e7f693ea50) at thread/qthread_unix.cpp:331
#8  0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f9f44cbf700 (LWP 2033)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e7f37273f4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55e7f37273a0, cond=0x55e7f37273c8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55e7f37273c8, mutex=0x55e7f37273a0) at pthread_cond_wait.c:647
#3  0x00007f9f6234e6db in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55e7f37273a0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55e7f39ad750, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f9f63fc2c44 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f9f63fc30b9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f9f62348543 in QThreadPrivate::start(void*) (arg=0x55e7f39ad6b0) at thread/qthread_unix.cpp:331
#8  0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f9f2b616700 (LWP 2003)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e7f5084bd4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55e7f5084b80, cond=0x55e7f5084ba8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55e7f5084ba8, mutex=0x55e7f5084b80) at pthread_cond_wait.c:647
#3  0x00007f9f6234e6db in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55e7f5084b80) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55e7f50f63d0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f9f63fc2c44 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f9f63fc30b9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f9f62348543 in QThreadPrivate::start(void*) (arg=0x55e7f50f6330) at thread/qthread_unix.cpp:331
#8  0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f9f3cdfe700 (LWP 1996)):
#0  0x00007f9f61fbbaff in __GI___poll (fds=0x7f9f24006120, nfds=1, timeout=1595325) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f9f6084e36e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9f6084e4a3 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9f62589a0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f9f24000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f9f6252dc9b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f9f3cdfdba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f9f62347362 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f9f3cede07c in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f9f62348543 in QThreadPrivate::start(void*) (arg=0x55e7f34b37b0) at thread/qthread_unix.cpp:331
#8  0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f9f3dbdf700 (LWP 1990)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e7f2152be4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55e7f2152b90, cond=0x55e7f2152bb8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55e7f2152bb8, mutex=0x55e7f2152b90) at pthread_cond_wait.c:647
#3  0x00007f9f6234e6db in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55e7f2152b90) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55e7f2a12500, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f9f63fc2c44 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f9f63fc30b9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f9f62348543 in QThreadPrivate::start(void*) (arg=0x55e7f2a12460) at thread/qthread_unix.cpp:331
#8  0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f9f45acf700 (LWP 1701)):
#0  0x00007f9f61fb71c0 in __GI___libc_read (nbytes=<optimized out>, buf=<optimized out>, fd=<optimized out>) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=<optimized out>, buf=<optimized out>, nbytes=<optimized out>) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f9f60896b2f in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9f6084debe in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9f6084e312 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9f6084e4a3 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9f62589a0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f9f40013bb0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f9f6252dc9b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f9f45aceba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#8  0x00007f9f62347362 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#9  0x00007f9f63efd40a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f9f62348543 in QThreadPrivate::start(void*) (arg=0x55e7f36c43e0) at thread/qthread_unix.cpp:331
#11 0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f9f551a4700 (LWP 1650)):
#0  0x00007f9f6089b508 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9f6084e21d in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9f6084e4a3 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9f62589a0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f9f4c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f9f6252dc9b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f9f551a3bc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f9f62347362 in QThread::exec() (this=this@entry=0x55e7f2158480) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f9f63b63569 in QQmlThreadPrivate::run() (this=0x55e7f2158480) at qml/ftw/qqmlthread.cpp:155
#7  0x00007f9f62348543 in QThreadPrivate::start(void*) (arg=0x55e7f2158480) at thread/qthread_unix.cpp:331
#8  0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f9f563b5700 (LWP 1570)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e7f1f0eecc) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55e7f1f0ee78, cond=0x55e7f1f0eea0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55e7f1f0eea0, mutex=0x55e7f1f0ee78) at pthread_cond_wait.c:647
#3  0x00007f9f567445eb in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f9f567441eb in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f9f57fff700 (LWP 1546)):
#0  __GI___libc_read (nbytes=16, buf=0x7f9f57ffe9a0, fd=7) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=7, buf=0x7f9f57ffe9a0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f9f60896b2f in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9f6084debe in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9f6084e312 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9f6084e4a3 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9f62589a0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f9f50000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f9f6252dc9b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f9f57ffebb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#8  0x00007f9f62347362 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#9  0x00007f9f62ebef4b in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007f9f62348543 in QThreadPrivate::start(void*) (arg=0x7f9f62f42d80) at thread/qthread_unix.cpp:331
#11 0x00007f9f61cdd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f9f61fc8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f9f5e0d09c0 (LWP 1500)):
[KCrash Handler]
#4  0x0000000000000021 in  ()
#5  0x00007f9f6456d279 in KDeclarative::KDeclarative::~KDeclarative() () at /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#6  0x00007f9f645701d2 in KDeclarative::QmlObject::~QmlObject() () at /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#7  0x00007f9f64570d3d in KDeclarative::QmlObjectSharedEngine::~QmlObjectSharedEngine() () at /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#8  0x00007f9f625597ae in QObjectPrivate::deleteChildren() (this=0x55e7f92b6f30) at kernel/qobject.cpp:2104
#9  0x00007f9f625641e6 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1082
#10 0x00007f9f6400d39a in QQuickItem::~QQuickItem() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f9f6492d1f9 in PlasmaQuick::AppletQuickItem::~AppletQuickItem() () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#12 0x00007f9f5c09cbbd in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#13 0x00007f9f625597ae in QObjectPrivate::deleteChildren() (this=0x55e7f88dcf50) at kernel/qobject.cpp:2104
#14 0x00007f9f625641e6 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1082
#15 0x00007f9f5c097ad8 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#16 0x00007f9f646373f8 in  () at /usr/lib/x86_64-linux-gnu/libKF5Plasma.so.5
#17 0x00007f9f646375fd in  () at /usr/lib/x86_64-linux-gnu/libKF5Plasma.so.5
#18 0x00007f9f6461f40e in Plasma::Applet::~Applet() () at /usr/lib/x86_64-linux-gnu/libKF5Plasma.so.5
#19 0x00007f9f6461f43d in Plasma::Applet::~Applet() () at /usr/lib/x86_64-linux-gnu/libKF5Plasma.so.5
#20 0x00007f9f6255cad3 in QObject::event(QEvent*) (this=0x55e7f7c1f080, e=0x55e7f7ef7050) at kernel/qobject.cpp:1301
#21 0x00007f9f63244dc3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x55e7f1e515f0, receiver=receiver@entry=0x55e7f7c1f080, e=e@entry=0x55e7f7ef7050) at kernel/qapplication.cpp:3632
#22 0x00007f9f6324dbb8 in QApplication::notify(QObject*, QEvent*) (this=0x7fff47cb8e50, receiver=0x55e7f7c1f080, e=0x55e7f7ef7050) at kernel/qapplication.cpp:3156
#23 0x00007f9f6252f19a in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55e7f7c1f080, event=0x55e7f7ef7050) at ../../include/QtCore/5.15.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:332
#24 0x00007f9f62531aa1 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=0x0, event_type=0, data=0x55e7f1e2aef0) at kernel/qcoreapplication.cpp:1821
#25 0x00007f9f6258a397 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x55e7f1f021f0) at kernel/qeventdispatcher_glib.cpp:277
#26 0x00007f9f6084e17d in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f9f6084e400 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f9f6084e4a3 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f9f625899f2 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55e7f1f029d0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#30 0x00007f9f6252dc9b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fff47cb8d30, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#31 0x00007f9f62535e44 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#32 0x000055e7f1021d95 in  ()
#33 0x00007f9f61ecd0b3 in __libc_start_main (main=0x55e7f1020f30, argc=1, argv=0x7fff47cb8fc8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff47cb8fb8) at ../csu/libc-start.c:308
#34 0x000055e7f1021ebe in  ()
[Inferior 1 (process 1500) detached]

The reporter indicates this bug may be a duplicate of or related to bug 352893.

Possible duplicates by query: bug 450569, bug 450561, bug 450555, bug 450549, bug 450495.

Reported using DrKonqi
Comment 1 Fushan Wen 2022-02-19 15:58:38 UTC 

*** This bug has been marked as a duplicate of bug 450507 ***