Bug 480835 - plasmashell crashes in KScreen::WaylandConfig::setupRegistry() when monitor is turned off
Summary: plasmashell crashes in KScreen::WaylandConfig::setupRegistry() when monitor i...
Status: RESOLVED DUPLICATE of bug 482768
Alias: None
Product: KScreen
Classification: Plasma
Component: common (show other bugs)
Version: 5.93.0
Platform: Arch Linux Linux
: NOR crash
Target Milestone: 1.0
Assignee: kscreen-bugs-null@kde.org
URL:
Keywords: drkonqi, qt6
Depends on:
Blocks:
 
Reported: 2024-02-04 09:22 UTC by TheFeelTrain
Modified: 2024-05-05 02:21 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

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Description TheFeelTrain 2024-02-04 09:22:58 UTC 
Application: plasmashell (5.93.0)

Qt Version: 6.7.0
Frameworks Version: 5.249.0
Operating System: Linux 6.7.3-zen1-1-zen x86_64
Windowing System: Wayland
Distribution: "Arch Linux"
DrKonqi: 5.93.0 [CoredumpBackend]

-- Information about the crash:
Every time I turn off my monitor plasmashell segfaults. It can be repeated multiple times indefinitely. It restarts itself when I turn the monitor back on.
I have tried changing mesa versions because of the radeon/dri mentions but doesn't seem to matter.

The crash can be reproduced every time.

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


This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.archlinux.org>
Enable debuginfod for this session? (y or [n]) [answered N; input not from terminal]
Debuginfod has been disabled.
To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.
[New LWP 405943]
[New LWP 405946]
[New LWP 405945]
[New LWP 405944]
[New LWP 405948]
[New LWP 405947]
[New LWP 405949]
[New LWP 405950]
[New LWP 405951]
[New LWP 405952]
[New LWP 405959]
[New LWP 405960]
[New LWP 405962]
[New LWP 405961]
[New LWP 405963]
[New LWP 405964]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Core was generated by `/usr/bin/plasmashell --no-respawn'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0000713c3deab32c in ?? () from /usr/lib/libc.so.6
[Current thread is 1 (Thread 0x713c38a779c0 (LWP 405943))]
Cannot QML trace cores :(
[Current thread is 1 (Thread 0x713c38a779c0 (LWP 405943))]

Thread 16 (Thread 0x713c0ea006c0 (LWP 405964)):
#0  0x0000713c3dea5ebe in ??? () at /usr/lib/libc.so.6
#1  0x0000713c3dea8750 in pthread_cond_wait () at /usr/lib/libc.so.6
#2  0x0000713c1dd13a1c in ??? () at /usr/lib/dri/radeonsi_dri.so
#3  0x0000713c1dd0ad5c in ??? () at /usr/lib/dri/radeonsi_dri.so
#4  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#5  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 15 (Thread 0x713c0f4006c0 (LWP 405963)):
#0  0x0000713c3dea5ebe in ??? () at /usr/lib/libc.so.6
#1  0x0000713c3dea8750 in pthread_cond_wait () at /usr/lib/libc.so.6
#2  0x0000713c1dd13a1c in ??? () at /usr/lib/dri/radeonsi_dri.so
#3  0x0000713c1dd0ad5c in ??? () at /usr/lib/dri/radeonsi_dri.so
#4  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#5  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 14 (Thread 0x713c14c006c0 (LWP 405961)):
#0  0x0000713c3dea5ebe in ??? () at /usr/lib/libc.so.6
#1  0x0000713c3dea8750 in pthread_cond_wait () at /usr/lib/libc.so.6
#2  0x0000713c1dd13a1c in ??? () at /usr/lib/dri/radeonsi_dri.so
#3  0x0000713c1dd0ad5c in ??? () at /usr/lib/dri/radeonsi_dri.so
#4  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#5  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 13 (Thread 0x713c0fe006c0 (LWP 405962)):
#0  0x0000713c3dea5ebe in ??? () at /usr/lib/libc.so.6
#1  0x0000713c3dea8750 in pthread_cond_wait () at /usr/lib/libc.so.6
#2  0x0000713c1dd13a1c in ??? () at /usr/lib/dri/radeonsi_dri.so
#3  0x0000713c1dd0ad5c in ??? () at /usr/lib/dri/radeonsi_dri.so
#4  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#5  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 12 (Thread 0x713c156006c0 (LWP 405960)):
#0  0x0000713c3dea5ebe in ??? () at /usr/lib/libc.so.6
#1  0x0000713c3dea8750 in pthread_cond_wait () at /usr/lib/libc.so.6
#2  0x0000713c1dd13a1c in ??? () at /usr/lib/dri/radeonsi_dri.so
#3  0x0000713c1dd0ad5c in ??? () at /usr/lib/dri/radeonsi_dri.so
#4  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#5  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 11 (Thread 0x713c24a006c0 (LWP 405959)):
#0  0x0000713c3dea5ebe in ??? () at /usr/lib/libc.so.6
#1  0x0000713c3dea8750 in pthread_cond_wait () at /usr/lib/libc.so.6
#2  0x0000713c1dd13a1c in ??? () at /usr/lib/dri/radeonsi_dri.so
#3  0x0000713c1dd0ad5c in ??? () at /usr/lib/dri/radeonsi_dri.so
#4  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#5  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 10 (Thread 0x713c254006c0 (LWP 405952)):
#0  0x0000713c3dea5ebe in ??? () at /usr/lib/libc.so.6
#1  0x0000713c3dea8750 in pthread_cond_wait () at /usr/lib/libc.so.6
#2  0x0000713c1dd13a1c in ??? () at /usr/lib/dri/radeonsi_dri.so
#3  0x0000713c1dd0ad5c in ??? () at /usr/lib/dri/radeonsi_dri.so
#4  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#5  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 9 (Thread 0x713c2cc006c0 (LWP 405951)):
#0  0x0000713c3dea5ebe in ??? () at /usr/lib/libc.so.6
#1  0x0000713c3dea8750 in pthread_cond_wait () at /usr/lib/libc.so.6
#2  0x0000713c1dd13a1c in ??? () at /usr/lib/dri/radeonsi_dri.so
#3  0x0000713c1dd0ad5c in ??? () at /usr/lib/dri/radeonsi_dri.so
#4  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#5  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 8 (Thread 0x713c2d6006c0 (LWP 405950)):
#0  0x0000713c3dea5ebe in ??? () at /usr/lib/libc.so.6
#1  0x0000713c3dea8750 in pthread_cond_wait () at /usr/lib/libc.so.6
#2  0x0000713c1dd13a1c in ??? () at /usr/lib/dri/radeonsi_dri.so
#3  0x0000713c1dd0ad5c in ??? () at /usr/lib/dri/radeonsi_dri.so
#4  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#5  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 7 (Thread 0x713c2e0006c0 (LWP 405949)):
#0  0x0000713c3dea5ebe in ??? () at /usr/lib/libc.so.6
#1  0x0000713c3dea8750 in pthread_cond_wait () at /usr/lib/libc.so.6
#2  0x0000713c1dd13a1c in ??? () at /usr/lib/dri/radeonsi_dri.so
#3  0x0000713c1dd0ad5c in ??? () at /usr/lib/dri/radeonsi_dri.so
#4  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#5  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 6 (Thread 0x713c354006c0 (LWP 405947)):
#0  0x0000713c3dea5ebe in ??? () at /usr/lib/libc.so.6
#1  0x0000713c3dea8750 in pthread_cond_wait () at /usr/lib/libc.so.6
#2  0x0000713c1dd13a1c in ??? () at /usr/lib/dri/radeonsi_dri.so
#3  0x0000713c1dd0ad5c in ??? () at /usr/lib/dri/radeonsi_dri.so
#4  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#5  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 5 (Thread 0x713c34a006c0 (LWP 405948)):
#0  0x0000713c3dea5ebe in ??? () at /usr/lib/libc.so.6
#1  0x0000713c3dea8750 in pthread_cond_wait () at /usr/lib/libc.so.6
#2  0x0000713c1dd13a1c in ??? () at /usr/lib/dri/radeonsi_dri.so
#3  0x0000713c1dd0ad5c in ??? () at /usr/lib/dri/radeonsi_dri.so
#4  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#5  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 4 (Thread 0x713c382006c0 (LWP 405944)):
#0  0x0000713c3df190bf in poll () at /usr/lib/libc.so.6
#1  0x0000713c3c6dc2f6 in ??? () at /usr/lib/libglib-2.0.so.0
#2  0x0000713c3c67c162 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x0000713c3dbaba54 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt6Core.so.6
#4  0x0000713c3d96e39e in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt6Core.so.6
#5  0x0000713c3da54adf in QThread::exec() () at /usr/lib/libQt6Core.so.6
#6  0x0000713c3e9ca13f in ??? () at /usr/lib/libQt6DBus.so.6
#7  0x0000713c3dad59e3 in ??? () at /usr/lib/libQt6Core.so.6
#8  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#9  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 3 (Thread 0x713c374006c0 (LWP 405945)):
#0  0x0000713c3dea5ebe in ??? () at /usr/lib/libc.so.6
#1  0x0000713c3dea8750 in pthread_cond_wait () at /usr/lib/libc.so.6
#2  0x0000713c3dae1f40 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt6Core.so.6
#3  0x0000713c3f979c78 in ??? () at /usr/lib/libQt6WaylandClient.so.6
#4  0x0000713c3dad59e3 in ??? () at /usr/lib/libQt6Core.so.6
#5  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#6  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 2 (Thread 0x713c36a006c0 (LWP 405946)):
#0  0x0000713c3df190bf in poll () at /usr/lib/libc.so.6
#1  0x0000713c3f979cf8 in ??? () at /usr/lib/libQt6WaylandClient.so.6
#2  0x0000713c3dad59e3 in ??? () at /usr/lib/libQt6Core.so.6
#3  0x0000713c3dea955a in ??? () at /usr/lib/libc.so.6
#4  0x0000713c3df26a3c in ??? () at /usr/lib/libc.so.6

Thread 1 (Thread 0x713c38a779c0 (LWP 405943)):
[KCrash Handler]
#4  0x0000713c359e8516 in ??? () at /usr/lib/qt6/plugins/kf6/kscreen/KSC_KWayland.so
#5  0x0000713c3f1584f6 in ??? () at /usr/lib/libffi.so.8
#6  0x0000713c3f154f5e in ??? () at /usr/lib/libffi.so.8
#7  0x0000713c3f157b73 in ffi_call () at /usr/lib/libffi.so.8
#8  0x0000713c40514645 in ??? () at /usr/lib/libwayland-client.so.0
#9  0x0000713c40514e73 in ??? () at /usr/lib/libwayland-client.so.0
#10 0x0000713c4051513c in wl_display_dispatch_queue_pending () at /usr/lib/libwayland-client.so.0
#11 0x0000713c3f979b6e in ??? () at /usr/lib/libQt6WaylandClient.so.6
#12 0x0000713c3d9b0a74 in QObject::event(QEvent*) () at /usr/lib/libQt6Core.so.6
#13 0x0000713c3fb7bf6b in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt6Widgets.so.6
#14 0x0000713c3d966178 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt6Core.so.6
#15 0x0000713c3d966504 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt6Core.so.6
#16 0x0000713c3dbae014 in ??? () at /usr/lib/libQt6Core.so.6
#17 0x0000713c3c67df69 in ??? () at /usr/lib/libglib-2.0.so.0
#18 0x0000713c3c6dc3a7 in ??? () at /usr/lib/libglib-2.0.so.0
#19 0x0000713c3c67c162 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#20 0x0000713c3dbaba54 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt6Core.so.6
#21 0x0000713c3d96e39e in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt6Core.so.6
#22 0x0000713c3d969d88 in QCoreApplication::exec() () at /usr/lib/libQt6Core.so.6
#23 0x000060f4a4c6f3e9 in ??? ()
#24 0x0000713c3de43cd0 in ??? () at /usr/lib/libc.so.6
#25 0x0000713c3de43d8a in __libc_start_main () at /usr/lib/libc.so.6
#26 0x000060f4a4c6fbb5 in ??? ()

Reported using DrKonqi
Comment 1 Nate Graham 2024-02-05 21:47:52 UTC 
Thank you for the bug report! Unfortunately I can't reproduce the crash myself on current git master, and the backtrace is incomplete and missing debug symbols for the following lines that we need to figure out exactly what's going wrong:

> #4  0x0000713c359e8516 in ??? () at /usr/lib/qt6/plugins/kf6/kscreen/KSC_KWayland.so

Could you please install debug symbols for KWin and KScreen and attach a new symbolicated backtrace generated by using `coredumpctl gdb` in a terminal window? See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports#Retrieving_a_backtrace_using_coredumpctl for details about how to do this.

Thanks again!
Comment 2 TheFeelTrain 2024-02-06 07:11:59 UTC 
I ran DEBUGINFOD_URLS="https://debuginfod.archlinux.org" coredumpctl gdb 451197 and then typed "bt" when it hits the prompt, this is all it gives me: 


#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
#1  0x00007620a3eab393 in __pthread_kill_internal (signo=11, threadid=<optimized out>) at pthread_kill.c:78
#2  0x00007620a3e5a6c8 in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26
#3  0x00007620a63f644f in KCrash::defaultCrashHandler (sig=11) at /usr/src/debug/kcrash/kcrash-5.249.0/src/kcrash.cpp:586
#4  0x00007620a3e5a770 in <signal handler called> () at /usr/lib/libc.so.6
#5  0x00007620760543cf in KActivities::Stats::ResultModelPrivate::Cache::replace(QList<KActivities::Stats::ResultSet::Result> const&, int)::{lambda()#1}::operator()() const (__closure=0x761da0251208)
    at /usr/src/debug/plasma-activities-stats/plasma-activities-stats-5.93.0/src/resultmodel.cpp:482
#6  std::__invoke_impl<void, KActivities::Stats::ResultModelPrivate::Cache::replace(QList<KActivities::Stats::ResultSet::Result> const&, int)::{lambda()#1}>(std::__invoke_other, KActivities::Stats::ResultModelPrivate::Cache::replace(QList<KActivities::Stats::ResultSet::Result> const&, int)::{lambda()#1}&&) (__f=...) at /usr/include/c++/13.2.1/bits/invoke.h:61
#7  std::__invoke<KActivities::Stats::ResultModelPrivate::Cache::replace(QList<KActivities::Stats::ResultSet::Result> const&, int)::{lambda()#1}>(KActivities::Stats::ResultModelPrivate::Cache::replace(QList<KActivities::Stats::ResultSet::Result> const&, int)::{lambda()#1}&&) (__fn=...) at /usr/include/c++/13.2.1/bits/invoke.h:96
#8  std::thread::_Invoker<std::tuple<KActivities::Stats::ResultModelPrivate::Cache::replace(QList<KActivities::Stats::ResultSet::Result> const&, int)::{lambda()#1}> >::_M_invoke<0ul>(std::_Index_tuple<0ul>)
    (this=0x761da0251208) at /usr/include/c++/13.2.1/bits/std_thread.h:292
#9  std::thread::_Invoker<std::tuple<KActivities::Stats::ResultModelPrivate::Cache::replace(QList<KActivities::Stats::ResultSet::Result> const&, int)::{lambda()#1}> >::operator()() (this=0x761da0251208)
    at /usr/include/c++/13.2.1/bits/std_thread.h:299
#10 std::thread::_State_impl<std::thread::_Invoker<std::tuple<KActivities::Stats::ResultModelPrivate::Cache::replace(QList<KActivities::Stats::ResultSet::Result> const&, int)::{lambda()#1}> > >::_M_run() (this=0x761da0251200)
    at /usr/include/c++/13.2.1/bits/std_thread.h:244
#11 0x00007620a34e1943 in std::execute_native_thread_routine (__p=0x761da0251200) at /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:104
#12 0x00007620a3ea955a in start_thread (arg=<optimized out>) at pthread_create.c:447
#13 0x00007620a3f26a3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78


I feel like there should be more but I am not sure how to get it. Pressing enter simply prints the same thing again. Maybe this is enough but let me know if there is something else I can do.
Comment 3 Nate Graham 2024-02-06 17:29:23 UTC 
Thanks, that's helpful. Looks like this is the same as Bug 458121.

*** This bug has been marked as a duplicate of bug 458121 ***
Comment 4 TheFeelTrain 2024-02-06 22:04:26 UTC 
Are you sure it's the same one? It doesn't actually happen to me at boot at all, just when turning off my monitor. 
And I tried uninstalling kactivites and it still happens, now with a different backtrace:

Program terminated with signal SIGSEGV, Segmentation fault.
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
44            return INTERNAL_SYSCALL_ERROR_P (ret) ? INTERNAL_SYSCALL_ERRNO (ret) : 0;                                                                                                  
[Current thread is 1 (Thread 0x76da885339c0 (LWP 90069))]
(gdb) bt
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
#1  0x000076da8daab393 in __pthread_kill_internal (signo=11, threadid=<optimized out>) at pthread_kill.c:78
#2  0x000076da8da5a6c8 in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26
#3  0x000076da8ff4644f in KCrash::defaultCrashHandler (sig=11) at /usr/src/debug/kcrash/kcrash-5.249.0/src/kcrash.cpp:586
#4  0x000076da8da5a770 in <signal handler called> () at /usr/lib/libc.so.6
#5  KScreen::WaylandConfig::setupRegistry()::{lambda(void*, wl_registry*, unsigned int, char const*, unsigned int)#1}::_FUN(void*, wl_registry*, unsigned int, char const*, unsigned int) () at /usr/include/c++/13.2.1/bits/atomic_base.h:505
#6  0x000076da8ce764f6 in ffi_call_unix64 () at ../src/x86/unix64.S:104
#7  0x000076da8ce72f5e in ffi_call_int (cif=cif@entry=0x7fff13652ba0, fn=<optimized out>, rvalue=<optimized out>, avalue=<optimized out>, closure=closure@entry=0x0)
    at ../src/x86/ffi64.c:673
#8  0x000076da8ce75b73 in ffi_call (cif=cif@entry=0x7fff13652ba0, fn=<optimized out>, rvalue=rvalue@entry=0x0, avalue=avalue@entry=0x7fff13652c70) at ../src/x86/ffi64.c:710
#9  0x000076da8ffd7645 in wl_closure_invoke (closure=closure@entry=0x76da78001550, target=<optimized out>, 
    target@entry=0x5d2db94fbc70, opcode=opcode@entry=0, data=<optimized out>, flags=1) at ../wayland-1.22.0/src/connection.c:1025
#10 0x000076da8ffd7e73 in dispatch_event (display=display@entry=0x5d2db8ba6470, queue=0x5d2db8ba6560) at ../wayland-1.22.0/src/wayland-client.c:1631
#11 0x000076da8ffd813c in dispatch_queue (queue=0x5d2db8ba6560, display=0x5d2db8ba6470) at ../wayland-1.22.0/src/wayland-client.c:1777
#12 wl_display_dispatch_queue_pending (display=0x5d2db8ba6470, queue=0x5d2db8ba6560) at ../wayland-1.22.0/src/wayland-client.c:2019
#13 0x000076da8fc0bb6e in QtWaylandClient::EventThread::readAndDispatchEvents (this=0x5d2db8c3a8b0)
    at /usr/src/debug/qt6-wayland/qtwayland-everywhere-src-6.7.0-beta2/src/client/qwaylanddisplay.cpp:227
#14 0x000076da8d5b0a74 in QObject::event (this=0x5d2db8ba6220, e=0x76da780014d0) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0-beta2/src/corelib/kernel/qobject.cpp:1446
#15 0x000076da8f57bf6b in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5d2db8ba6220, e=0x76da780014d0)
    at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0-beta2/src/widgets/kernel/qapplication.cpp:3298
#16 0x000076da8d566178 in QCoreApplication::notifyInternal2 (receiver=0x5d2db8ba6220, event=event@entry=0x76da780014d0)
    at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0-beta2/src/corelib/kernel/qcoreapplication.cpp:1134
#17 0x000076da8d566504 in QCoreApplication::sendEvent (event=0x76da780014d0, receiver=<optimized out>)
    at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0-beta2/src/corelib/kernel/qcoreapplication.cpp:1575
#18 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x5d2db8b74ba0)
    at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0-beta2/src/corelib/kernel/qcoreapplication.cpp:1946
#19 0x000076da8d7ae014 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0)
    at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0-beta2/src/corelib/kernel/qcoreapplication.cpp:1803
#20 postEventSourceDispatch (s=0x5d2db8c3e6b0) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0-beta2/src/corelib/kernel/qeventdispatcher_glib.cpp:244
#21 0x000076da8c14af69 in g_main_dispatch (context=0x76da80000ef0) at ../glib/glib/gmain.c:3476
#22 0x000076da8c1a93a7 in g_main_context_dispatch_unlocked (context=0x76da80000ef0) at ../glib/glib/gmain.c:4284
#23 g_main_context_iterate_unlocked.isra.0 (context=context@entry=0x76da80000ef0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/glib/gmain.c:4349
#24 0x000076da8c149162 in g_main_context_iteration (context=0x76da80000ef0, may_block=1) at ../glib/glib/gmain.c:4414
#25 0x000076da8d7aba54 in QEventDispatcherGlib::processEvents (this=0x5d2db8ba32b0, flags=...)
    at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0-beta2/src/corelib/kernel/qeventdispatcher_glib.cpp:394
#26 0x000076da8d56e39e in QEventLoop::processEvents (flags=..., this=0x7fff13653260) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0-beta2/src/corelib/kernel/qeventloop.cpp:100
#27 QEventLoop::exec (this=0x7fff13653260, flags=...) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0-beta2/src/corelib/kernel/qeventloop.cpp:182
#28 0x000076da8d569d88 in QCoreApplication::exec () at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0-beta2/src/corelib/global/qflags.h:74
#29 0x000076da8f5784ba in QApplication::exec () at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0-beta2/src/widgets/kernel/qapplication.cpp:2568
#30 0x00005d2db7b543e9 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma-workspace/plasma-workspace-5.93.0/shell/main.cpp:214
Comment 5 Nate Graham 2024-02-07 17:46:40 UTC 
Well, it means there are multiple bugs. Perhaps one of them is Bug 458121. We can use this one for the original issue, which thanks to the debug symbols, I can now tell is in KScreen::WaylandConfig::setupRegistry(). Moving to KScreen.
Comment 6 TheFeelTrain 2024-03-16 14:52:43 UTC 
Appears to be solved with 6.0.2, closing for now.
Comment 7 Nate Graham 2024-03-16 15:49:41 UTC 
Indeed!

*** This bug has been marked as a duplicate of bug 482768 ***