Application: plasmashell (5.18.5)

Qt Version: 5.14.2
Frameworks Version: 5.70.0
Operating System: Linux 5.6.11-050611-generic x86_64
Windowing system: X11
Distribution: KDE neon Testing Edition

-- Information about the crash:
KDE plasma on neon test is crash after update and reboot

The crash can be reproduced sometimes.

-- 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 0x7fd6f09841c0 (LWP 3653))]

Thread 19 (Thread 0x7fd6769fa700 (LWP 4097)):
#0  0x00007fd6e70939f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c6d869b1a4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd6e70939f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c6d869b150, cond=0x55c6d869b178) at pthread_cond_wait.c:502
#2  0x00007fd6e70939f3 in __pthread_cond_wait (cond=0x55c6d869b178, mutex=0x55c6d869b150) at pthread_cond_wait.c:655
#3  0x00007fd6ea45c1db in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55c6d869b150) at thread/qwaitcondition_unix.cpp:146
#4  0x00007fd6ea45c1db in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55c6d9574d10, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fd6ea45c359 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x55c6d9574d18, mutex=mutex@entry=0x55c6d9574d10, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007fd6ee55b233 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55c6d9574d08) at scenegraph/qsgthreadedrenderloop.cpp:255
#7  0x00007fd6ee55b233 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55c6d9574c70) at scenegraph/qsgthreadedrenderloop.cpp:905
#8  0x00007fd6ee55b691 in QSGRenderThread::run() (this=0x55c6d9574c70) at scenegraph/qsgthreadedrenderloop.cpp:1000
#9  0x00007fd6ea455c2c in QThreadPrivate::start(void*) (arg=0x55c6d9574c70) at thread/qthread_unix.cpp:342
#10 0x00007fd6e708d6db in start_thread (arg=0x7fd6769fa700) at pthread_create.c:463
#11 0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fd6771fb700 (LWP 4096)):
#0  0x00007fd6e70939f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c6d968ed08) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd6e70939f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c6d968ecb8, cond=0x55c6d968ece0) at pthread_cond_wait.c:502
#2  0x00007fd6e70939f3 in __pthread_cond_wait (cond=0x55c6d968ece0, mutex=0x55c6d968ecb8) at pthread_cond_wait.c:655
#3  0x00007fd6c59cda0b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fd6c59cd607 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fd6e708d6db in start_thread (arg=0x7fd6771fb700) at pthread_create.c:463
#6  0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fd66241a700 (LWP 4094)):
#0  0x00007fd6e9cf2bf9 in __GI___poll (fds=0x7fd65c0029e0, nfds=1, timeout=3424651) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd6e3b775c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd6e3b776dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd6ea6a47cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd65c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fd6ea643d2a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd662419d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007fd6ea454757 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:536
#6  0x00007fd664d79467 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007fd6ea455c2c in QThreadPrivate::start(void*) (arg=0x55c6d903fc80) at thread/qthread_unix.cpp:342
#8  0x00007fd6e708d6db in start_thread (arg=0x7fd66241a700) at pthread_create.c:463
#9  0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fd6890f1700 (LWP 3989)):
#0  0x00007fd6e3bbd629 in g_mutex_lock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fd6e3b765e4 in g_main_context_release () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd6e3b77586 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd6e3b776dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd6ea6a47cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd67c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd6ea643d2a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd6890f0d30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007fd6ea454757 in QThread::exec() (this=this@entry=0x55c6d8509120) at thread/qthread.cpp:536
#7  0x00007fd6ee49db06 in QQuickPixmapReader::run() (this=0x55c6d8509120) at util/qquickpixmapcache.cpp:987
#8  0x00007fd6ea455c2c in QThreadPrivate::start(void*) (arg=0x55c6d8509120) at thread/qthread_unix.cpp:342
#9  0x00007fd6e708d6db in start_thread (arg=0x7fd6890f1700) at pthread_create.c:463
#10 0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fd68b5ac700 (LWP 3961)):
#0  0x00007fd6e70939f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c6d7f6fd40) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd6e70939f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c6d7f6fcf0, cond=0x55c6d7f6fd18) at pthread_cond_wait.c:502
#2  0x00007fd6e70939f3 in __pthread_cond_wait (cond=0x55c6d7f6fd18, mutex=0x55c6d7f6fcf0) at pthread_cond_wait.c:655
#3  0x00007fd6ea45c1db in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55c6d7f6fcf0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007fd6ea45c1db in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x55c6d7edd270, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fd6ea45c359 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x55c6d7edd278, mutex=mutex@entry=0x55c6d7edd270, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007fd6ee55b233 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55c6d7edd268) at scenegraph/qsgthreadedrenderloop.cpp:255
#7  0x00007fd6ee55b233 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55c6d7edd1d0) at scenegraph/qsgthreadedrenderloop.cpp:905
#8  0x00007fd6ee55b691 in QSGRenderThread::run() (this=0x55c6d7edd1d0) at scenegraph/qsgthreadedrenderloop.cpp:1000
#9  0x00007fd6ea455c2c in QThreadPrivate::start(void*) (arg=0x55c6d7edd1d0) at thread/qthread_unix.cpp:342
#10 0x00007fd6e708d6db in start_thread (arg=0x7fd68b5ac700) at pthread_create.c:463
#11 0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fd68adab700 (LWP 3960)):
#0  0x00007fd6e70939f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c6d845007c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd6e70939f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c6d8450028, cond=0x55c6d8450050) at pthread_cond_wait.c:502
#2  0x00007fd6e70939f3 in __pthread_cond_wait (cond=0x55c6d8450050, mutex=0x55c6d8450028) at pthread_cond_wait.c:655
#3  0x00007fd6c59cda0b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fd6c59cd607 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fd6e708d6db in start_thread (arg=0x7fd68adab700) at pthread_create.c:463
#6  0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fd6916aa700 (LWP 3898)):
#0  0x00007fd6e9cf2bf9 in __GI___poll (fds=0x7fd68c002de0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd6e3b775c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd6e3b776dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd6ea6a47cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd68c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fd6ea643d2a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd6916a9d40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007fd6ea454757 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:536
#6  0x00007fd6e305556f in  () at /usr/lib/x86_64-linux-gnu/libKF5KIOCore.so.5
#7  0x00007fd6ea455c2c in QThreadPrivate::start(void*) (arg=0x7fd6e32e4260) at thread/qthread_unix.cpp:342
#8  0x00007fd6e708d6db in start_thread (arg=0x7fd6916aa700) at pthread_create.c:463
#9  0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fd69fbff700 (LWP 3867)):
#0  0x00007fd6e9cee0b4 in __GI___libc_read (fd=16, buf=0x7fd69fbfeb90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fd6e3bbc2b0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd6e3b770b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd6e3b77570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd6e3b776dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd6ea6a47cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd698000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fd6ea643d2a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd69fbfeda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007fd6ea454757 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:536
#8  0x00007fd6ea455c2c in QThreadPrivate::start(void*) (arg=0x55c6d81033e0) at thread/qthread_unix.cpp:342
#9  0x00007fd6e708d6db in start_thread (arg=0x7fd69fbff700) at pthread_create.c:463
#10 0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fd6bc83f700 (LWP 3762)):
#0  0x00007fd6e70939f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c6d7c89f80) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd6e70939f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c6d7c89f30, cond=0x55c6d7c89f58) at pthread_cond_wait.c:502
#2  0x00007fd6e70939f3 in __pthread_cond_wait (cond=0x55c6d7c89f58, mutex=0x55c6d7c89f30) at pthread_cond_wait.c:655
#3  0x00007fd6c59cda0b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fd6c59cd607 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fd6e708d6db in start_thread (arg=0x7fd6bc83f700) at pthread_create.c:463
#6  0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fd6bd040700 (LWP 3761)):
#0  0x00007fd6e70939f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c6d7c89f80) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd6e70939f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c6d7c89f30, cond=0x55c6d7c89f58) at pthread_cond_wait.c:502
#2  0x00007fd6e70939f3 in __pthread_cond_wait (cond=0x55c6d7c89f58, mutex=0x55c6d7c89f30) at pthread_cond_wait.c:655
#3  0x00007fd6c59cda0b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fd6c59cd607 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fd6e708d6db in start_thread (arg=0x7fd6bd040700) at pthread_create.c:463
#6  0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fd6bd841700 (LWP 3760)):
#0  0x00007fd6e70939f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c6d7c89884) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd6e70939f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c6d7c89830, cond=0x55c6d7c89858) at pthread_cond_wait.c:502
#2  0x00007fd6e70939f3 in __pthread_cond_wait (cond=0x55c6d7c89858, mutex=0x55c6d7c89830) at pthread_cond_wait.c:655
#3  0x00007fd6c59cda0b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fd6c59cd607 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fd6e708d6db in start_thread (arg=0x7fd6bd841700) at pthread_create.c:463
#6  0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fd6be042700 (LWP 3759)):
#0  0x00007fd6e70939f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c6d7c89884) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd6e70939f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c6d7c89830, cond=0x55c6d7c89858) at pthread_cond_wait.c:502
#2  0x00007fd6e70939f3 in __pthread_cond_wait (cond=0x55c6d7c89858, mutex=0x55c6d7c89830) at pthread_cond_wait.c:655
#3  0x00007fd6c59cda0b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fd6c59cd607 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fd6e708d6db in start_thread (arg=0x7fd6be042700) at pthread_create.c:463
#6  0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fd6be843700 (LWP 3758)):
#0  0x00007fd6e70939f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c6d7c89880) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd6e70939f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c6d7c89830, cond=0x55c6d7c89858) at pthread_cond_wait.c:502
#2  0x00007fd6e70939f3 in __pthread_cond_wait (cond=0x55c6d7c89858, mutex=0x55c6d7c89830) at pthread_cond_wait.c:655
#3  0x00007fd6c59cda0b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fd6c59cd607 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fd6e708d6db in start_thread (arg=0x7fd6be843700) at pthread_create.c:463
#6  0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fd6bf044700 (LWP 3756)):
#0  0x00007fd6e70939f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c6d7be3288) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd6e70939f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c6d7be3238, cond=0x55c6d7be3260) at pthread_cond_wait.c:502
#2  0x00007fd6e70939f3 in __pthread_cond_wait (cond=0x55c6d7be3260, mutex=0x55c6d7be3238) at pthread_cond_wait.c:655
#3  0x00007fd6c59cda0b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fd6c59cd607 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fd6e708d6db in start_thread (arg=0x7fd6bf044700) at pthread_create.c:463
#6  0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fd6c0087700 (LWP 3755)):
#0  0x00007fd6e70939f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c6d7c8565c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd6e70939f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55c6d7c85608, cond=0x55c6d7c85630) at pthread_cond_wait.c:502
#2  0x00007fd6e70939f3 in __pthread_cond_wait (cond=0x55c6d7c85630, mutex=0x55c6d7c85608) at pthread_cond_wait.c:655
#3  0x00007fd6c59cda0b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fd6c59cd607 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fd6e708d6db in start_thread (arg=0x7fd6c0087700) at pthread_create.c:463
#6  0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fd6d2b9f700 (LWP 3748)):
#0  0x00007fd6e3bbd644 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fd6e3b76fd9 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd6e3b77570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd6e3b776dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd6ea6a47cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd6c8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd6ea643d2a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd6d2b9ed80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007fd6ea454757 in QThread::exec() (this=this@entry=0x55c6d79c2020) at thread/qthread.cpp:536
#7  0x00007fd6ee007fc5 in QQmlThreadPrivate::run() (this=0x55c6d79c2020) at qml/ftw/qqmlthread.cpp:155
#8  0x00007fd6ea455c2c in QThreadPrivate::start(void*) (arg=0x55c6d79c2020) at thread/qthread_unix.cpp:342
#9  0x00007fd6e708d6db in start_thread (arg=0x7fd6d2b9f700) at pthread_create.c:463
#10 0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fd6d8cbb700 (LWP 3684)):
#0  0x00007fd6e9cee0b4 in __GI___libc_read (fd=7, buf=0x7fd6d8cbab60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fd6e3bbc2b0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd6e3b770b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd6e3b77570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd6e3b776dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd6ea6a47cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd6cc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fd6ea643d2a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd6d8cbad70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007fd6ea454757 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:536
#8  0x00007fd6ec352555 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007fd6ea455c2c in QThreadPrivate::start(void*) (arg=0x7fd6ec5cada0) at thread/qthread_unix.cpp:342
#10 0x00007fd6e708d6db in start_thread (arg=0x7fd6d8cbb700) at pthread_create.c:463
#11 0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fd6db2d6700 (LWP 3671)):
#0  0x00007fd6e9cf2bf9 in __GI___poll (fds=0x7fd6db2d5ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd6ef16d747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fd6ef16f36a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fd6dda97fd0 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fd6ea455c2c in QThreadPrivate::start(void*) (arg=0x55c6d77684d0) at thread/qthread_unix.cpp:342
#5  0x00007fd6e708d6db in start_thread (arg=0x7fd6db2d6700) at pthread_create.c:463
#6  0x00007fd6e9cff88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fd6f09841c0 (LWP 3653)):
[KCrash Handler]
#4  0x00007fd6ee5a663c in QQuickItemPrivate::ChangeListener::operator==(QQuickItemPrivate::ChangeListener const&) const (other=..., this=0x55c6dbb35008) at ../../include/QtQuick/5.14.2/QtQuick/private/../../../../../src/quick/items/qquickitem_p.h:351
#5  0x00007fd6ee5a663c in QVector<QQuickItemPrivate::ChangeListener>::indexOf(QQuickItemPrivate::ChangeListener const&, int) const (this=this@entry=0x55c6d9b14788, t=..., from=<optimized out>, from@entry=0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qvector.h:1016
#6  0x00007fd6ee59e49e in QVector<QQuickItemPrivate::ChangeListener>::removeOne(QQuickItemPrivate::ChangeListener const&) (t=..., this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qvector.h:182
#7  0x00007fd6ee59e49e in QQuickItemPrivate::removeItemChangeListener(QQuickItemChangeListener*, QFlags<QQuickItemPrivate::ChangeType>) (this=this@entry=0x55c6d9b14710, listener=listener@entry=0x55c6da3be4a0, types=..., types@entry=...) at items/qquickitem.cpp:3955
#8  0x00007fd6ee6d3ada in QQuickShaderEffectSource::~QQuickShaderEffectSource() (this=0x55c6da3be480, __in_chrg=<optimized out>) at items/qquickshadereffectsource.cpp:213
#9  0x00007fd6ee6d3b39 in QQuickShaderEffectSource::~QQuickShaderEffectSource() (this=0x55c6da3be480, __in_chrg=<optimized out>) at items/qquickshadereffectsource.cpp:218
#10 0x00007fd68b7bd67b in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/QtGraphicalEffects/private/libqtgraphicaleffectsprivate.so
#11 0x00007fd68b7b8575 in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/QtGraphicalEffects/private/libqtgraphicaleffectsprivate.so
#12 0x00007fd6ea674ceb in QObjectPrivate::deleteChildren() (this=0x55c6d9b7b930) at kernel/qobject.cpp:2123
#13 0x00007fd6ea67e2ce in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#14 0x00007fd6ee5a322d in QQuickItem::~QQuickItem() (this=0x55c6d9b7b870, __in_chrg=<optimized out>) at items/qquickitem.cpp:2383
#15 0x00007fd6ee5c3bb5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55c6d9b7b870, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#16 0x00007fd6ee5c3bb5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55c6d9b7b870, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#17 0x00007fd6ea674ceb in QObjectPrivate::deleteChildren() (this=0x55c6d9b7b530) at kernel/qobject.cpp:2123
#18 0x00007fd6ea67e2ce in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#19 0x00007fd6ee5a322d in QQuickItem::~QQuickItem() (this=0x55c6d9b7b470, __in_chrg=<optimized out>) at items/qquickitem.cpp:2383
#20 0x00007fd6ee5c3bb5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55c6d9b7b470, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#21 0x00007fd6ee5c3bb5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55c6d9b7b470, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#22 0x00007fd6ea674ceb in QObjectPrivate::deleteChildren() (this=0x55c6d9b7b1b0) at kernel/qobject.cpp:2123
#23 0x00007fd6ea67e2ce in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#24 0x00007fd6ee5a322d in QQuickItem::~QQuickItem() (this=0x55c6d9b7b0f0, __in_chrg=<optimized out>) at items/qquickitem.cpp:2383
#25 0x00007fd6ee5c3bb5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55c6d9b7b0f0, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#26 0x00007fd6ee5c3bb5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55c6d9b7b0f0, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#27 0x00007fd6ea674ceb in QObjectPrivate::deleteChildren() (this=0x55c6d96fbea0) at kernel/qobject.cpp:2123
#28 0x00007fd6ea67e2ce in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#29 0x00007fd6ee5a322d in QQuickItem::~QQuickItem() (this=0x55c6d84a9890, __in_chrg=<optimized out>) at items/qquickitem.cpp:2383
#30 0x00007fd6ee5c3dd5 in QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement() (this=0x55c6d84a9890, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#31 0x00007fd6ee5c3dd5 in QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement() (this=0x55c6d84a9890, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#32 0x00007fd6ea674ceb in QObjectPrivate::deleteChildren() (this=0x55c6d8c6ac40) at kernel/qobject.cpp:2123
#33 0x00007fd6ea67e2ce in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#34 0x00007fd6ee5a322d in QQuickItem::~QQuickItem() (this=0x55c6d9b25d50, __in_chrg=<optimized out>) at items/qquickitem.cpp:2383
#35 0x00007fd6ee5c3bb5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55c6d9b25d50, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#36 0x00007fd6ee5c3bb5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55c6d9b25d50, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#37 0x00007fd6ea674ceb in QObjectPrivate::deleteChildren() (this=0x55c6d971efc0) at kernel/qobject.cpp:2123
#38 0x00007fd6ea67e2ce in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#39 0x00007fd6ee5a322d in QQuickItem::~QQuickItem() (this=0x55c6d9b16c60, __in_chrg=<optimized out>) at items/qquickitem.cpp:2383
#40 0x00007fd6ee5c3dd5 in QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement() (this=0x55c6d9b16c60, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#41 0x00007fd6ee5c3dd5 in QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement() (this=0x55c6d9b16c60, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#42 0x00007fd6ea674ceb in QObjectPrivate::deleteChildren() (this=0x55c6d96fbd10) at kernel/qobject.cpp:2123
#43 0x00007fd6ea67e2ce in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#44 0x00007fd6ee5a322d in QQuickItem::~QQuickItem() (this=0x55c6d96d6280, __in_chrg=<optimized out>) at items/qquickitem.cpp:2383
#45 0x00007fd6ee5c3bb5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55c6d96d6280, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#46 0x00007fd6ee5c3bb5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55c6d96d6280, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#47 0x00007fd6ea6785a5 in QObject::event(QEvent*) (this=this@entry=0x55c6d96d6280, e=e@entry=0x55c6d7897ad0) at kernel/qobject.cpp:1326
#48 0x00007fd6ee5a04db in QQuickItem::event(QEvent*) (this=0x55c6d96d6280, ev=0x55c6d7897ad0) at items/qquickitem.cpp:8162
#49 0x00007fd6eb9899ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#50 0x00007fd6eb990bb0 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#51 0x00007fd6ea6454a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55c6d96d6280, event=0x55c6d7897ad0) at kernel/qcoreapplication.cpp:1075
#52 0x00007fd6ea64567e in QCoreApplication::sendEvent(QObject*, QEvent*) (receiver=receiver@entry=0x55c6d96d6280, event=event@entry=0x55c6d7897ad0) at kernel/qcoreapplication.cpp:1470
#53 0x00007fd6ea648121 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55c6d7758f20) at kernel/qcoreapplication.cpp:1815
#54 0x00007fd6ea6486b8 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1674
#55 0x00007fd6ea6a5103 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x55c6d77c6230) at kernel/qeventdispatcher_glib.cpp:277
#56 0x00007fd6e3b77417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#57 0x00007fd6e3b77650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#58 0x00007fd6e3b776dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#59 0x00007fd6ea6a47ac in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55c6d77d5ce0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#60 0x00007fd6ea643d2a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc82da2c50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#61 0x00007fd6ea64d4a0 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1383
#62 0x000055c6d6737894 in  ()
#63 0x00007fd6e9bffb97 in __libc_start_main (main=0x55c6d6736a70, argc=1, argv=0x7ffc82da2f58, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc82da2f48) at ../csu/libc-start.c:310
#64 0x000055c6d67379fa in _start ()
[Inferior 1 (process 3653) detached]

The reporter indicates this bug may be a duplicate of or related to bug 421085.

Possible duplicates by query: bug 421197, bug 421170, bug 421085, bug 420949, bug 420946.

Reported using DrKonqi