Application: plasmashell (5.18.5)

Qt Version: 5.14.2
Frameworks Version: 5.69.0
Operating System: Linux 5.3.0-51-generic x86_64
Windowing system: X11
Distribution: KDE neon User Edition 5.18

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

I'm searching a widget for put it in the desktop. The widget was Latte Sidebar Button, but never appears.

-- 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 0x7f07f1c901c0 (LWP 7126))]

Thread 21 (Thread 0x7f0717fff700 (LWP 9710)):
#0  QMutex::lock (this=this@entry=0x5639e92df1f0) at thread/qmutex.cpp:231
#1  0x00007f07eb9966cc in QMutexLocker::QMutexLocker (m=0x5639e92df1f0, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:233
#2  QThreadData::canWaitLocked (this=0x5639e92df1c0) at ../../include/QtCore/5.14.2/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:272
#3  postEventSourcePrepare (s=0x7f0710003800, timeout=0x7f0717ffebd4) at kernel/qeventdispatcher_glib.cpp:260
#4  0x00007f07e4eb4b28 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f07e4eb54fb in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f07e4eb56dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f07eb9967cb in QEventDispatcherGlib::processEvents (this=0x7f07100047e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#8  0x00007f07eb935d2a in QEventLoop::exec (this=this@entry=0x7f0717ffeda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#9  0x00007f07eb746757 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#10 0x00007f07eb747c2c in QThreadPrivate::start (arg=0x5639eb75b530) at thread/qthread_unix.cpp:342
#11 0x00007f07e83ca6db in start_thread (arg=0x7f0717fff700) at pthread_create.c:463
#12 0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f0742ffd700 (LWP 9708)):
#0  0x00007f07eb02b0b4 in __GI___libc_read (fd=25, buf=0x7f0742ffcb90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f07e4efa2b0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f07e4eb50b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f07e4eb5570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f07e4eb56dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f07eb9967cb in QEventDispatcherGlib::processEvents (this=0x7f0734001650, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f07eb935d2a in QEventLoop::exec (this=this@entry=0x7f0742ffcda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007f07eb746757 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#8  0x00007f07eb747c2c in QThreadPrivate::start (arg=0x7f07d4009950) at thread/qthread_unix.cpp:342
#9  0x00007f07e83ca6db in start_thread (arg=0x7f0742ffd700) at pthread_create.c:463
#10 0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f07411f3700 (LWP 9597)):
#0  0x00007f07aadf3d90 in pa_queue_pop () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#1  0x00007f07aadf27e6 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#2  0x00007f07aadf370d in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#3  0x00007f07aadf3ab9 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#4  0x00007f07aadf433f in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#5  0x00007f07ab488108 in pa_mainloop_dispatch () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f07ab4884de in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#7  0x00007f07ab488560 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#8  0x00007f07ab4963c9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#9  0x00007f07aae04318 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#10 0x00007f07e83ca6db in start_thread (arg=0x7f07411f3700) at pthread_create.c:463
#11 0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f074a545700 (LWP 8916)):
#0  0x00007f07e83d09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5639e926b014) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5639e926afc0, cond=0x5639e926afe8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5639e926afe8, mutex=0x5639e926afc0) at pthread_cond_wait.c:655
#3  0x00007f07eb74e1db in QWaitConditionPrivate::wait (deadline=..., this=0x5639e926afc0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x7f07d401a300, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f07eb74e359 in QWaitCondition::wait (this=0x7f07d401a308, mutex=0x7f07d401a300, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f07ef851233 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f07ef851691 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f07eb747c2c in QThreadPrivate::start (arg=0x7f07d401a260) at thread/qthread_unix.cpp:342
#9  0x00007f07e83ca6db in start_thread (arg=0x7f074a545700) at pthread_create.c:463
#10 0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f0764fdc700 (LWP 8893)):
#0  0x00007f07e83d09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5639edcfb4d4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5639edcfb480, cond=0x5639edcfb4a8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5639edcfb4a8, mutex=0x5639edcfb480) at pthread_cond_wait.c:655
#3  0x00007f07eb74e1db in QWaitConditionPrivate::wait (deadline=..., this=0x5639edcfb480) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x7f07d4018be0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f07eb74e359 in QWaitCondition::wait (this=0x7f07d4018be8, mutex=0x7f07d4018be0, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f07ef851233 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f07ef851691 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f07eb747c2c in QThreadPrivate::start (arg=0x7f07d4018b40) at thread/qthread_unix.cpp:342
#9  0x00007f07e83ca6db in start_thread (arg=0x7f0764fdc700) at pthread_create.c:463
#10 0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f07669ee700 (LWP 8887)):
#0  0x00007f07e83d09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5639ed251720) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5639ed2516d0, cond=0x5639ed2516f8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5639ed2516f8, mutex=0x5639ed2516d0) at pthread_cond_wait.c:655
#3  0x00007f07eb74e1db in QWaitConditionPrivate::wait (deadline=..., this=0x5639ed2516d0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x7f07d4014230, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f07eb74e359 in QWaitCondition::wait (this=0x7f07d4014238, mutex=0x7f07d4014230, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f07ef851233 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f07ef851691 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f07eb747c2c in QThreadPrivate::start (arg=0x7f07d4014190) at thread/qthread_unix.cpp:342
#9  0x00007f07e83ca6db in start_thread (arg=0x7f07669ee700) at pthread_create.c:463
#10 0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f07657dd700 (LWP 8886)):
#0  0x00007f07e83d09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5639ecc62e04) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5639ecc62db0, cond=0x5639ecc62dd8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5639ecc62dd8, mutex=0x5639ecc62db0) at pthread_cond_wait.c:655
#3  0x00007f07eb74e1db in QWaitConditionPrivate::wait (deadline=..., this=0x5639ecc62db0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x5639eb1b0d60, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f07eb74e359 in QWaitCondition::wait (this=0x5639eb1b0d68, mutex=0x5639eb1b0d60, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f07ef851233 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f07ef851691 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f07eb747c2c in QThreadPrivate::start (arg=0x5639eb1b0cc0) at thread/qthread_unix.cpp:342
#9  0x00007f07e83ca6db in start_thread (arg=0x7f07657dd700) at pthread_create.c:463
#10 0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f0753fff700 (LWP 8745)):
#0  0x00007f07e83d09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5639eb04ab20) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5639eb04aad0, cond=0x5639eb04aaf8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5639eb04aaf8, mutex=0x5639eb04aad0) at pthread_cond_wait.c:655
#3  0x00007f07eb74e1db in QWaitConditionPrivate::wait (deadline=..., this=0x5639eb04aad0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x7f07d4011200, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f07eb74e359 in QWaitCondition::wait (this=0x7f07d4011208, mutex=0x7f07d4011200, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f07ef851233 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f07ef851691 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f07eb747c2c in QThreadPrivate::start (arg=0x7f07d4011160) at thread/qthread_unix.cpp:342
#9  0x00007f07e83ca6db in start_thread (arg=0x7f0753fff700) at pthread_create.c:463
#10 0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f0789b26700 (LWP 8686)):
#0  0x00007f07e83d09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5639ec8b9a70) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5639ec8b9a20, cond=0x5639ec8b9a48) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5639ec8b9a48, mutex=0x5639ec8b9a20) at pthread_cond_wait.c:655
#3  0x00007f07eb74e1db in QWaitConditionPrivate::wait (deadline=..., this=0x5639ec8b9a20) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x5639eabef010, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f07eb74e359 in QWaitCondition::wait (this=0x5639eabef018, mutex=0x5639eabef010, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f07ef851233 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f07ef851691 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f07eb747c2c in QThreadPrivate::start (arg=0x5639eabeef70) at thread/qthread_unix.cpp:342
#9  0x00007f07e83ca6db in start_thread (arg=0x7f0789b26700) at pthread_create.c:463
#10 0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f076eaf5700 (LWP 8649)):
#0  0x00007f07e4efb629 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f07e4eb45e4 in g_main_context_release () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f07e4eb5586 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f07e4eb56dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f07eb9967cb in QEventDispatcherGlib::processEvents (this=0x7f0760001f10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f07eb935d2a in QEventLoop::exec (this=this@entry=0x7f076eaf4da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f07eb746757 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#7  0x00007f07eb747c2c in QThreadPrivate::start (arg=0x5639ebfa4160) at thread/qthread_unix.cpp:342
#8  0x00007f07e83ca6db in start_thread (arg=0x7f076eaf5700) at pthread_create.c:463
#9  0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f078a9aa700 (LWP 8644)):
#0  0x00007f07eb02b187 in __GI___libc_write (fd=59, buf=0x7f078a9a9cb0, nbytes=8) at ../sysdeps/unix/sysv/linux/write.c:27
#1  0x00007f07e4efa36a in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f07e4eb17dc in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f07e4eb5435 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f07e4eb5650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f07e4eb5962 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f07a3e167f7 in ?? () from /usr/lib/x86_64-linux-gnu/libgstgl-1.0.so.0
#7  0x00007f07e4edd175 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f07e83ca6db in start_thread (arg=0x7f078a9aa700) at pthread_create.c:463
#9  0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f076f2f6700 (LWP 8641)):
#0  0x00007f07eb02b0b4 in __GI___libc_read (fd=57, buf=0x7f076f2f5cd0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f07e4efa2b0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f07e4eb50b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f07e4eb5570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f07e4eb5962 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f07a3e167f7 in ?? () from /usr/lib/x86_64-linux-gnu/libgstgl-1.0.so.0
#6  0x00007f07e4edd175 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f07e83ca6db in start_thread (arg=0x7f076f2f6700) at pthread_create.c:463
#8  0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f0788c95700 (LWP 8631)):
#0  0x00007f07e83d09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5639eb1f7e90) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5639eb1f7e40, cond=0x5639eb1f7e68) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5639eb1f7e68, mutex=0x5639eb1f7e40) at pthread_cond_wait.c:655
#3  0x00007f07eb74e1db in QWaitConditionPrivate::wait (deadline=..., this=0x5639eb1f7e40) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x5639eb239c90, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f07eb74e359 in QWaitCondition::wait (this=0x5639eb239c98, mutex=0x5639eb239c90, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f07ef851233 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f07ef851691 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f07eb747c2c in QThreadPrivate::start (arg=0x5639eb239bf0) at thread/qthread_unix.cpp:342
#9  0x00007f07e83ca6db in start_thread (arg=0x7f0788c95700) at pthread_create.c:463
#10 0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f07a1540700 (LWP 8494)):
#0  0x00007f07eb02fbf9 in __GI___poll (fds=0x7f0790003c30, nfds=1, timeout=2292384) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f07e4eb55c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f07e4eb56dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f07eb9967cb in QEventDispatcherGlib::processEvents (this=0x7f0790001f10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f07eb935d2a in QEventLoop::exec (this=this@entry=0x7f07a153fd60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f07eb746757 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#6  0x00007f079a026467 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f07eb747c2c in QThreadPrivate::start (arg=0x5639ea779710) at thread/qthread_unix.cpp:342
#8  0x00007f07e83ca6db in start_thread (arg=0x7f07a1540700) at pthread_create.c:463
#9  0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f079bfff700 (LWP 8018)):
#0  0x00007f07eb02b187 in __GI___libc_write (fd=34, buf=0x7f079bffecb0, nbytes=8) at ../sysdeps/unix/sysv/linux/write.c:27
#1  0x00007f07e4efa36a in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f07e4eb1970 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f07e4eb53c0 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f07e4eb5650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f07e4eb5962 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f07a3e167f7 in ?? () from /usr/lib/x86_64-linux-gnu/libgstgl-1.0.so.0
#7  0x00007f07e4edd175 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f07e83ca6db in start_thread (arg=0x7f079bfff700) at pthread_create.c:463
#9  0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f07a0d3f700 (LWP 7969)):
#0  0x00007f07f04668aa in xcb_flush () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#1  0x00007f07a3e3f004 in ?? () from /usr/lib/x86_64-linux-gnu/libgstgl-1.0.so.0
#2  0x00007f07e4eb4b28 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f07e4eb54fb in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f07e4eb5962 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f07a3e167f7 in ?? () from /usr/lib/x86_64-linux-gnu/libgstgl-1.0.so.0
#6  0x00007f07e4edd175 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f07e83ca6db in start_thread (arg=0x7f07a0d3f700) at pthread_create.c:463
#8  0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f07ba7ec700 (LWP 7611)):
#0  0x00007f07e83d09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5639e9c4f2a4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5639e9c4f250, cond=0x5639e9c4f278) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5639e9c4f278, mutex=0x5639e9c4f250) at pthread_cond_wait.c:655
#3  0x00007f07eb74e1db in QWaitConditionPrivate::wait (deadline=..., this=0x5639e9c4f250) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x5639e9c734d0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f07eb74e359 in QWaitCondition::wait (this=0x5639e9c734d8, mutex=0x5639e9c734d0, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f07ef851233 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f07ef851691 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f07eb747c2c in QThreadPrivate::start (arg=0x5639e9c73430) at thread/qthread_unix.cpp:342
#9  0x00007f07e83ca6db in start_thread (arg=0x7f07ba7ec700) at pthread_create.c:463
#10 0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f07bc5e8700 (LWP 7335)):
#0  0x00007f07eb02b0b4 in __GI___libc_read (fd=23, buf=0x7f07bc5e7b20, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f07e4efa2b0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f07e4eb50b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f07e4eb5570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f07e4eb56dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f07eb9967cb in QEventDispatcherGlib::processEvents (this=0x7f07b4000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f07eb935d2a in QEventLoop::exec (this=this@entry=0x7f07bc5e7d30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007f07eb746757 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#8  0x00007f07ef793b06 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f07eb747c2c in QThreadPrivate::start (arg=0x5639e9368200) at thread/qthread_unix.cpp:342
#10 0x00007f07e83ca6db in start_thread (arg=0x7f07bc5e8700) at pthread_create.c:463
#11 0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f07d3fff700 (LWP 7196)):
#0  0x00007f07eb02b0b4 in __GI___libc_read (fd=11, buf=0x7f07d3ffeb70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f07e4efa2b0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f07e4eb50b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f07e4eb5570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f07e4eb56dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f07eb9967cb in QEventDispatcherGlib::processEvents (this=0x7f07c8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f07eb935d2a in QEventLoop::exec (this=this@entry=0x7f07d3ffed80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007f07eb746757 in QThread::exec (this=this@entry=0x5639e925e810) at thread/qthread.cpp:536
#8  0x00007f07ef2fdfc5 in QQmlThreadPrivate::run (this=0x5639e925e810) at qml/ftw/qqmlthread.cpp:155
#9  0x00007f07eb747c2c in QThreadPrivate::start (arg=0x5639e925e810) at thread/qthread_unix.cpp:342
#10 0x00007f07e83ca6db in start_thread (arg=0x7f07d3fff700) at pthread_create.c:463
#11 0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f07da216700 (LWP 7146)):
#0  0x00007f07e4efb644 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f07e4eb56e6 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f07eb9967cb in QEventDispatcherGlib::processEvents (this=0x7f07cc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#3  0x00007f07eb935d2a in QEventLoop::exec (this=this@entry=0x7f07da215d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#4  0x00007f07eb746757 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#5  0x00007f07ed644555 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#6  0x00007f07eb747c2c in QThreadPrivate::start (arg=0x7f07ed8bcda0) at thread/qthread_unix.cpp:342
#7  0x00007f07e83ca6db in start_thread (arg=0x7f07da216700) at pthread_create.c:463
#8  0x00007f07eb03c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f07f1c901c0 (LWP 7126)):
[KCrash Handler]
#6  0x00007f07ef178719 in QIntrusiveListNode::remove (this=<optimized out>) at ../../include/QtQml/5.14.2/QtQml/private/../../../../../src/qml/qml/ftw/qintrusivelist_p.h:259
#7  QIntrusiveListNode::~QIntrusiveListNode (this=<optimized out>, __in_chrg=<optimized out>) at ../../include/QtQml/5.14.2/QtQml/private/../../../../../src/qml/qml/ftw/qintrusivelist_p.h:253
#8  QV4::ExecutionEngine::ScarceResourceData::~ScarceResourceData (this=<optimized out>, __in_chrg=<optimized out>) at ../../include/QtQml/5.14.2/QtQml/private/../../../../../src/qml/jsruntime/qv4engine_p.h:515
#9  QV4::Heap::VariantObject::destroy (this=<optimized out>) at jsruntime/qv4variantobject_p.h:75
#10 QV4::VariantObject::virtualDestroy (b=<optimized out>) at jsruntime/qv4variantobject_p.h:97
#11 0x00007f07ef0907fe in QV4::Chunk::sweep (this=0x7f074ac90000, engine=0x5639e91baad0) at memory/qv4mm.cpp:348
#12 0x00007f07ef090a93 in QV4::BlockAllocator::<lambda(QV4::Chunk*)>::operator() (c=<optimized out>, __closure=<synthetic pointer>) at memory/qv4mm.cpp:627
#13 std::__partition<__gnu_cxx::__normal_iterator<QV4::Chunk**, std::vector<QV4::Chunk*> >, QV4::BlockAllocator::sweep()::<lambda(QV4::Chunk*)> > (__pred=..., __last=0x7f0743cd0000, __first=0x7f074ac90000) at /usr/include/c++/7/bits/stl_algo.h:1521
#14 std::partition<__gnu_cxx::__normal_iterator<QV4::Chunk**, std::vector<QV4::Chunk*> >, QV4::BlockAllocator::sweep()::<lambda(QV4::Chunk*)> > (__pred=..., __last=..., __first=...) at /usr/include/c++/7/bits/stl_algo.h:4654
#15 QV4::BlockAllocator::sweep (this=this@entry=0x5639e92246f0) at memory/qv4mm.cpp:627
#16 0x00007f07ef09172e in QV4::MemoryManager::sweep (this=this@entry=0x5639e92246e0, lastSweep=lastSweep@entry=false, classCountPtr=classCountPtr@entry=0x0) at memory/qv4mm.cpp:993
#17 0x00007f07ef092401 in QV4::MemoryManager::runGC (this=0x5639e92246e0) at memory/qv4mm.cpp:1053
#18 0x00007f07ef09442c in QV4::MemoryManager::allocate (size=96, allocator=0x5639e92246f0, this=0x5639e92246e0) at ../../include/QtQml/5.14.2/QtQml/private/../../../../../src/qml/memory/qv4mm_p.h:328
#19 QV4::MemoryManager::allocData (this=0x5639e92246e0, size=96) at memory/qv4mm.cpp:802
#20 0x00007f07ef094532 in QV4::MemoryManager::allocObjectWithMemberData (this=this@entry=0x5639e92246e0, vtable=vtable@entry=0x7f07ef6378c0 <QV4::QQmlTypeWrapper::static_vtbl>, nMembers=<optimized out>) at memory/qv4mm.cpp:814
#21 0x00007f07ef2cd843 in QV4::MemoryManager::allocateObject<QV4::QQmlTypeWrapper> (ic=<optimized out>, this=0x5639e92246e0) at ../../include/QtQml/5.14.2/QtQml/private/../../../../../src/qml/memory/qv4mm_p.h:191
#22 QV4::MemoryManager::allocateObject<QV4::QQmlTypeWrapper> (ic=<optimized out>, this=0x5639e92246e0) at ../../include/QtQml/5.14.2/QtQml/private/../../../../../src/qml/memory/qv4mm_p.h:201
#23 QV4::MemoryManager::allocateObject<QV4::QQmlTypeWrapper> (this=0x5639e92246e0) at ../../include/QtQml/5.14.2/QtQml/private/../../../../../src/qml/memory/qv4mm_p.h:211
#24 QV4::MemoryManager::allocate<QV4::QQmlTypeWrapper> (this=0x5639e92246e0) at ../../include/QtQml/5.14.2/QtQml/private/../../../../../src/qml/memory/qv4mm_p.h:244
#25 QV4::QQmlTypeWrapper::create (engine=engine@entry=0x5639e91baad0, o=o@entry=0x5639edcae100, t=..., importNamespace=0x7f07c8304b60, mode=mode@entry=QV4::Heap::QQmlTypeWrapper::IncludeEnums) at qml/qqmltypewrapper.cpp:134
#26 0x00007f07ef163c72 in QV4::QQmlContextWrapper::getPropertyAndBase (resource=<optimized out>, id=..., receiver=receiver@entry=0x0, hasProperty=hasProperty@entry=0x7ffcfc237e37, base=base@entry=0x0, lookup=lookup@entry=0x5639eaad5200) at jsruntime/qv4qmlcontext.cpp:253
#27 0x00007f07ef163f75 in QV4::QQmlContextWrapper::resolveQmlContextPropertyLookupGetter (l=l@entry=0x5639eaad5200, engine=engine@entry=0x5639e91baad0, base=base@entry=0x0) at jsruntime/qv4qmlcontext.cpp:481
#28 0x00007f07ef1640f1 in QV4::QQmlContextWrapper::lookupType (l=0x5639eaad5200, engine=0x5639e91baad0, base=0x0) at jsruntime/qv4qmlcontext.cpp:681
#29 0x00007f07980e02de in ?? ()
#30 0x0000000000000000 in ?? ()

Possible duplicates by query: bug 393943, bug 386582.

Reported using DrKonqi