Application: systemsettings5 (5.14.5)

Qt Version: 5.12.5
Frameworks Version: 5.62.0
Operating System: Linux 5.3.0-3-amd64 x86_64
Distribution: Deepin 15

-- Information about the crash:
- What I was doing when the application crashed:
我不知道
- Unusual behavior I noticed:
我不清楚
- Custom settings of the application:

我不了解
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The crash can be reproduced every time.

-- Backtrace:
Application: 系统设置 (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd572e1b840 (LWP 559140))]

Thread 5 (Thread 0x7fd5192cf700 (LWP 565056)):
#0  0x00007fd5776b4d0f in __GI___poll (fds=0x560c317b83c0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd5753bc09e in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd5753bc403 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd52f24b8f6 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fd5753e4d0d in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd575e72fb7 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fd5776bf2cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fd519ad0700 (LWP 565055)):
#0  0x00007fd5776b089c in __GI___libc_read (nbytes=16, buf=0x7fd519acfca0, fd=27) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007fd5776b089c in __GI___libc_read (fd=27, buf=0x7fd519acfca0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fd575402d4f in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd5753bbbee in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd5753bc042 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd5753bc1bf in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fd5753bc211 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fd5753e4d0d in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fd575e72fb7 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007fd5776bf2cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fd52ca9a700 (LWP 559173)):
#0  0x00007fd5776b089c in __GI___libc_read (nbytes=16, buf=0x7fd52ca99b30, fd=24) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007fd5776b089c in __GI___libc_read (fd=24, buf=0x7fd52ca99b30, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fd575402d4f in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd5753bbbee in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd5753bc042 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd5753bc1bf in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fd577c3080b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fd577bd971b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fd577a1a751 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fd576d50835 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007fd577a1b8d2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fd575e72fb7 in start_thread (arg=<optimized out>) at pthread_create.c:486
#12 0x00007fd5776bf2cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fd572655700 (LWP 559142)):
#0  0x00007fd5776b4d0f in __GI___poll (fds=0x7fd56c01cbe0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd5753bc09e in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd5753bc1bf in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd577c3080b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fd577bd971b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd577a1a751 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd577ead4e6 in  () at /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fd577a1b8d2 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fd575e72fb7 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007fd5776bf2cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fd572e1b840 (LWP 559140)):
[KCrash Handler]
#6  0x00007fd579255f49 in  () at /lib/x86_64-linux-gnu/libwayland-client.so.0
#7  0x00007fd579251cf1 in wl_proxy_destroy () at /lib/x86_64-linux-gnu/libwayland-client.so.0
#8  0x00007fd571b7f1d7 in KWayland::Client::PlasmaWindow::release() () at /lib/x86_64-linux-gnu/libKF5WaylandClient.so.5
#9  0x00007fd571b7f1fb in KWayland::Client::PlasmaWindow::~PlasmaWindow() () at /lib/x86_64-linux-gnu/libKF5WaylandClient.so.5
#10 0x00007fd571b7f329 in KWayland::Client::PlasmaWindow::~PlasmaWindow() () at /lib/x86_64-linux-gnu/libKF5WaylandClient.so.5
#11 0x00007fd577c0316e in QObjectPrivate::deleteChildren() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fd577c0d42f in QObject::~QObject() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fd571b7fa79 in KWayland::Client::PlasmaWindowManagement::~PlasmaWindowManagement() () at /lib/x86_64-linux-gnu/libKF5WaylandClient.so.5
#14 0x00007fd577c0316e in QObjectPrivate::deleteChildren() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fd577c0d42f in QObject::~QObject() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fd56a497cc3 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemKWaylandPlugin.so
#17 0x00007fd577601720 in __run_exit_handlers (status=0, listp=0x7fd57777e718 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at exit.c:108
#18 0x00007fd57760185a in __GI_exit (status=<optimized out>) at exit.c:139
#19 0x00007fd5775ebbc2 in __libc_start_main (main=0x560c2dff21c0, argc=1, argv=0x7ffc36a682d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc36a682c8) at ../csu/libc-start.c:342
#20 0x0000560c2dff263a in _start ()
[Inferior 1 (process 559140) detached]

Reported using DrKonqi