https://bugs.kde.org/show_bug.cgi?id=519874

--- Comment #7 from [email protected] ---
(In reply to TraceyC from comment #6)
> Thanks for the bug report. From the logs, systemsettings crashed
> 
> May 07 15:21:13 alarm systemd-coredump[2004]: Process 1248 (systemsettings)
> of user 1000 dumped core.
> 
> As the message at the top of the summary says, if something crashed, we need
> a backtrace of it so we can figure out what's going on. Can you please
> attach a backtrace of the crash, as detailed in
> https://community.kde.org/Guidelines_and_HOWTOs/Debugging/
> How_to_create_useful_crash_reports ?感谢您提交错误报告。从日志来看,系统设置崩溃了。
> 
> 5 月 7 日 15:21:13 alarm systemd-coredump[2004]: 用户 1000 的进程 1248
> (systemsettings) 已生成核心转储文件。
> 
> 正如摘要顶部的消息所述,如果程序崩溃,我们需要崩溃回溯信息才能找出问题所在。请您按照
> https://community.kde.org/Guidelines_and_HOWTOs/Debugging/
> How_to_create_useful_crash_reports 中的说明,附上崩溃回溯信息。

I have captured a full backtrace using debuginfod. It appears the crash occurs
within the Fcitx 5 Qt6 platform input context plugin when updating the
client-side UI via DBus.

Environment: Arch Linux ARM (aarch64) on Xiaomi Pad 5 (nabu), Wayland session.

 **Backtrace:** >>>(gdb) set debuginfod enabled on
(gdb) bt
#0  0x0000ffffad84b674 in ?? () from /usr/lib/libc.so.6
#1  0x0000ffffad7f8158 in raise () from /usr/lib/libc.so.6
#2  0x0000ffffafcb4e44 in KCrash::defaultCrashHandler(int) () from
/usr/lib/libKF6Crash.so.6
#3  <signal handler called>
#4  0x0000ffffa45b177c in ?? ()
   from
/usr/lib/qt6/plugins/platforminputcontexts/libfcitx5platforminputcontextplugin.so
#5  0x0000ffffa45a69b4 in ?? ()
   from
/usr/lib/qt6/plugins/platforminputcontexts/libfcitx5platforminputcontextplugin.so
#6  0x0000ffffa4599c38 in ?? ()
   from
/usr/lib/qt6/plugins/platforminputcontexts/libfcitx5platforminputcontextplugin.so
#7  0x0000ffffa459a788 in ?? ()
   from
/usr/lib/qt6/plugins/platforminputcontexts/libfcitx5platforminputcontextplugin.so
#8  0x0000ffffa45a27ec in ?? ()
   from
/usr/lib/qt6/plugins/platforminputcontexts/libfcitx5platforminputcontextplugin.so
#9  0x0000ffffadf2c004 in ?? () from /usr/lib/libQt6Core.so.6
#10 0x0000ffffa4583838 in ?? ()
   from
/usr/lib/qt6/plugins/platforminputcontexts/libfcitx5platforminputcontextplugin.so
#11 0x0000ffffa45993ac in ?? ()
   from
/usr/lib/qt6/plugins/platforminputcontexts/libfcitx5platforminputcontextplugin.so
#12 0x0000ffffadf2c004 in ?? () from /usr/lib/libQt6Core.so.6
#13 0x0000ffffa44f2fc4 in
fcitx::FcitxQtInputContextProxy::updateClientSideUI(QList<fcitx::FcitxQtFormattedPreedit>
const&, int, QList<fcitx::FcitxQtFormattedPreedit> const&,
QList<fcitx::FcitxQtFormattedPreedit> const&,
QList<fcitx::FcitxQtStringKeyValue> const&, int, int, bool, bool) () from
/usr/lib/libFcitx5Qt6DBusAddons.so.1
#14 0x0000ffffa452dcac in ?? () from /usr/lib/libFcitx5Qt6DBusAddons.so.1
#15 0x0000ffffadf2c004 in ?? () from /usr/lib/libQt6Core.so.6
#16 0x0000ffffa44f3074 in
fcitx::FcitxQtInputContextProxyImpl::UpdateClientSideUI(QList<fcitx::FcitxQtFormattedPreedit>,
int, QList<fcitx::FcitxQtFormattedPreedit>,
QList<fcitx::FcitxQtFormattedPreedit>, QList<fcitx::FcitxQtStringKeyValue>,
int, int, bool, bool) () from /usr/lib/libFcitx5Qt6DBusAddons.so.1
--Type <RET> for more, q to quit, c to continue without paging--
#17 0x0000ffffa44f5058 in ?? () from /usr/lib/libFcitx5Qt6DBusAddons.so.1
#18 0x0000ffffa44f7edc in
fcitx::FcitxQtInputContextProxyImpl::qt_metacall(QMetaObject::Call, int,
void**) ()
   from /usr/lib/libFcitx5Qt6DBusAddons.so.1
#19 0x0000ffffad3e08fc in ?? () from /usr/lib/libQt6DBus.so.6
#20 0x0000ffffadf1ae94 in QObject::event(QEvent*) () from
/usr/lib/libQt6Core.so.6
#21 0x0000ffffaf0f4f90 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
()
   from /usr/lib/libQt6Widgets.so.6
#22 0x0000ffffadeb09d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/libQt6Core.so.6
#23 0x0000ffffadeb4f98 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) ()
   from /usr/lib/libQt6Core.so.6
#24 0x0000ffffae22fffc in ?? () from /usr/lib/libQt6Core.so.6
#25 0x0000ffffac616370 in ?? () from /usr/lib/libglib-2.0.so.0
#26 0x0000ffffac61a034 in ?? () from /usr/lib/libglib-2.0.so.0
#27 0x0000ffffac61aa04 in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#28 0x0000ffffae22f474 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib/libQt6Core.so.6
#29 0x0000ffffadebf7a8 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt6Core.so.6
#30 0x0000ffffadeba1fc in QCoreApplication::exec() () from
/usr/lib/libQt6Core.so.6
#31 0x0000aaaacdb3c7d8 in ?? ()
#32 0x0000ffffad7e2dd4 in ?? () from /usr/lib/libc.so.6
#33 0x0000ffffad7e2f38 in __libc_start_main () from /usr/lib/libc.so.6
#34 0x0000aaaacdb3d1f0 in ?? ()
(gdb)

Maybe I need close Fcitx 5 but I must go to sleep now

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