https://bugs.kde.org/show_bug.cgi?id=500946

            Bug ID: 500946
           Summary: All screens go black when second external monitor
                    connected (5 of 7)
    Classification: Plasma
           Product: kwin
           Version: 6.3.2
          Platform: Fedora RPMs
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kwin-bugs-n...@kde.org
          Reporter: hen...@kauhanen.se
  Target Milestone: ---

Application: kwin_wayland (6.3.2)

ApplicationNotResponding [ANR]: false
Qt Version: 6.8.2
Frameworks Version: 6.11.0
Operating System: Linux 6.13.5-200.fc41.x86_64 x86_64
Windowing System: Wayland
Distribution: "Fedora release 41 (Forty One)"
DrKonqi: 6.3.2 [CoredumpBackend]

-- Information about the crash:
I get 7 crash reports by the system, each slightly different. As I do not have
enough experience to figure out which one of them is most significant, I report
them and let whoever can sort out which one is.

I have a system with Dell 7470 laptop, its docking station and to the docking
station connected a Dell UltraSharp UP2716D via Displayport.
>From the displayport output on this monitor, there is another monitor Dell
U2413.
This setup has been working for years with fedora + KDE plasma.
On updating today (haven't done it for a few days, so updates from perhaps 25th
of february onwards may be included), on initial reboot the screens go black
after a few initial screens (shows Dell on bootup and fedora booting).
When I disconnect the external screens I can log in to KDE plasma as normal on
the laptop built in monitor.
I can then connect the UP2716D (without the U2413 connected) and it will show
the extended desktop.
When I try to connect the U2413 within a couple seconds all screens go black
and stay so for a while.
Now it seems to be a little unclear, what happens next.
Sometimes I get a login / desktop unlocking prompt after a while, but if I log
in everyting immediately goes black again.

(I have similar problems on a second computer too, a Dell 7400 with two Dell
U3219Q monitors connected via a Dell USB-C/Thunderbird docking station, but
that is not in this report. Just to indicate that it seems to be happening on
two sets of completely different hardware.)

The crash can be reproduced every time.

-- Backtrace:
Application: Kwin (kwin_wayland), signal: Segmentation fault


This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.fedoraproject.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.

warning: Can't open file /memfd:unknown-usage:QtQml (deleted) during
file-backed mapping note processing

warning: Can't open file /memfd:JSVMStack:QtQml (deleted) during file-backed
mapping note processing

warning: Can't open file anon_inode:i915.gem during file-backed mapping note
processing

warning: Can't open file /memfd:JSGCHeap:QtQml (deleted) during file-backed
mapping note processing
[New LWP 55581]
[New LWP 55598]
[New LWP 55599]
[New LWP 55600]
[New LWP 55601]
[New LWP 55597]
[New LWP 55603]
[New LWP 55596]
[New LWP 55632]
[New LWP 55604]
[New LWP 55602]
[New LWP 55613]
[New LWP 55605]
[New LWP 55629]
[New LWP 55607]
[New LWP 55608]
[New LWP 55631]
[New LWP 55609]
[New LWP 55592]
[New LWP 55606]
[New LWP 55610]
[New LWP 55611]
[New LWP 55633]
[New LWP 55630]
[New LWP 55634]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/kwin_wayland --wayland-fd 7 --socket wayland-0
--xwayland-fd 8 --xwayland-fd 9 --xwayland-display :1 --xwayland-xauthority
/run/user/1000/xauth_auCyrH --xwayland'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f4a52880114 in __pthread_kill_implementation () from
/lib64/libc.so.6
[Current thread is 1 (Thread 0x7f4a4c3d52c0 (LWP 55581))]
Cannot QML trace cores :(
/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py:547: DeprecationWarning:
datetime.datetime.utcfromtimestamp() is deprecated and scheduled for removal in
a future version. Use timezone-aware objects to represent datetimes in UTC:
datetime.datetime.fromtimestamp(timestamp, datetime.UTC).
  boot_time =
datetime.utcfromtimestamp(psutil.boot_time()).strftime('%Y-%m-%dT%H:%M:%S')
/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py:564: DeprecationWarning:
datetime.datetime.utcnow() is deprecated and scheduled for removal in a future
version. Use timezone-aware objects to represent datetimes in UTC:
datetime.datetime.now(datetime.UTC).
  'timestamp': datetime.utcnow().isoformat(),
[Current thread is 1 (Thread 0x7f4a4c3d52c0 (LWP 55581))]

Thread 25 (Thread 0x7f49ddffb6c0 (LWP 55634)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d5a2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a530c32f4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib64/libQt6Core.so.6
#3  0x00007f4a530c0023 in QThreadPoolThread::run() () from
/lib64/libQt6Core.so.6
#4  0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#5  0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#6  0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 24 (Thread 0x7f49dffff6c0 (LWP 55630)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a356e72ed in cnd_wait () from /lib64/libgallium-25.0.0.so
#3  0x00007f4a356b1c4b in util_queue_thread_func () from
/lib64/libgallium-25.0.0.so
#4  0x00007f4a356e721c in impl_thrd_routine () from /lib64/libgallium-25.0.0.so
#5  0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#6  0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 23 (Thread 0x7f49de7fc6c0 (LWP 55633)):
#0  strcmp () at ../sysdeps/x86_64/multiarch/../multiarch/strcmp-sse2.S:162
#1  0x00007f4a565aaefb in _dl_map_object (loader=loader@entry=0x7f4a559b54c0,
name=name@entry=0x7f49c40ca190
"/usr/lib64/qt6/qml/QtQuick/Layouts/libqquicklayoutsplugin.so.avx2",
type=type@entry=2, trace_mode=trace_mode@entry=0, mode=mode@entry=-1879044095,
nsid=0) at dl-load.c:1932
#2  0x00007f4a565aed7c in dl_open_worker_begin (a=a@entry=0x7f49de7f9d60) at
dl-open.c:553
#3  0x00007f4a565a4523 in __GI__dl_catch_exception
(exception=exception@entry=0x7f49de7f9bb0, operate=operate@entry=0x7f4a565aecd0
<dl_open_worker_begin>, args=args@entry=0x7f49de7f9d60) at dl-catch.c:241
#4  0x00007f4a565ae4a0 in dl_open_worker (a=a@entry=0x7f49de7f9d60) at
dl-open.c:778
#5  0x00007f4a565a4523 in __GI__dl_catch_exception
(exception=exception@entry=0x7f49de7f9d40, operate=operate@entry=0x7f4a565ae460
<dl_open_worker>, args=args@entry=0x7f49de7f9d60) at dl-catch.c:241
#6  0x00007f4a565ae904 in _dl_open (file=0x7f49c40ca190
"/usr/lib64/qt6/qml/QtQuick/Layouts/libqquicklayoutsplugin.so.avx2",
mode=<optimized out>, caller_dlopen=0x7f4a531ed5d7
<QLibraryPrivate::load_sys()+3495>, nsid=<optimized out>, argc=14,
argv=0x7ffdb2e0fcd8, env=0x5627f0902fd0) at dl-open.c:880
#7  0x00007f4a52879cf4 in dlopen_doit () from /lib64/libc.so.6
#8  0x00007f4a565a4523 in __GI__dl_catch_exception
(exception=exception@entry=0x7f49de7f9f50, operate=0x7f4a52879c90
<dlopen_doit>, args=0x7f49de7fa010) at dl-catch.c:241
#9  0x00007f4a565a4679 in _dl_catch_error (objname=0x7f49de7f9fb8,
errstring=0x7f49de7f9fc0, mallocedp=0x7f49de7f9fb7, operate=<optimized out>,
args=<optimized out>) at dl-catch.c:260
#10 0x00007f4a528797e3 in _dlerror_run () from /lib64/libc.so.6
#11 0x00007f4a52879daf in dlopen@GLIBC_2.2.5 () from /lib64/libc.so.6
#12 0x00007f4a531ed5d7 in QLibraryPrivate::load_sys() () from
/lib64/libQt6Core.so.6
#13 0x00007f4a531e83d8 in QLibraryPrivate::load() () from
/lib64/libQt6Core.so.6
#14 0x00007f4a531e87c3 in QLibraryPrivate::loadPlugin() () from
/lib64/libQt6Core.so.6
#15 0x00007f4a52f80dd6 in QPluginLoader::load() () from /lib64/libQt6Core.so.6
#16 0x00007f4a54d2ddb7 in QQmlPluginImporter::importDynamicPlugin(QString
const&, QString const&, bool) () from /lib64/libQt6Qml.so.6
#17 0x00007f4a54d2ee85 in QQmlPluginImporter::importPlugins() () from
/lib64/libQt6Qml.so.6
#18 0x00007f4a54cc2ac8 in QQmlImports::importExtension(QQmlTypeLoader*, QString
const&, QTypeRevision, QQmlTypeLoaderQmldirContent const*, QList<QQmlError>*)
() from /lib64/libQt6Qml.so.6
#19 0x00007f4a54ccadcc in QQmlImports::addLibraryImport(QQmlTypeLoader*,
QString const&, QString const&, QTypeRevision, QString const&, QString const&,
QFlags<QQmlImports::ImportFlag>, unsigned short, QList<QQmlError>*) () from
/lib64/libQt6Qml.so.6
#20 0x00007f4a54db9a06 in
QQmlTypeLoader::Blob::addLibraryImport(std::shared_ptr<QQmlTypeLoader::Blob::PendingImport>
const&, QList<QQmlError>*) () from /lib64/libQt6Qml.so.6
#21 0x00007f4a54dba2ec in
QQmlTypeLoader::Blob::addImport(QV4::CompiledData::Import const*,
QFlags<QQmlImports::ImportFlag>, QList<QQmlError>*) () from
/lib64/libQt6Qml.so.6
#22 0x00007f4a54d96c39 in
QQmlTypeData::loadFromDiskCache(QQmlRefPointer<QV4::CompiledData::CompilationUnit>
const&) () from /lib64/libQt6Qml.so.6
#23 0x00007f4a54d982db in QQmlTypeData::tryLoadFromDiskCache() [clone .part.0]
() from /lib64/libQt6Qml.so.6
#24 0x00007f4a54d98608 in
QQmlTypeData::dataReceived(QQmlDataBlob::SourceCodeData const&) () from
/lib64/libQt6Qml.so.6
#25 0x00007f4a54db57b5 in QQmlTypeLoader::setData(QQmlRefPointer<QQmlDataBlob>
const&, QQmlDataBlob::SourceCodeData const&) () from /lib64/libQt6Qml.so.6
#26 0x00007f4a54db6194 in QQmlTypeLoader::setData(QQmlRefPointer<QQmlDataBlob>
const&, QString const&) () from /lib64/libQt6Qml.so.6
#27 0x00007f4a54db62c0 in
QQmlTypeLoader::loadThread(QQmlRefPointer<QQmlDataBlob> const&) () from
/lib64/libQt6Qml.so.6
#28 0x00007f4a54dc406c in QQmlThread::createMessageFromMethod<void
(QQmlTypeLoaderThread::*)(QQmlRefPointer<QQmlDataBlob> const&),
QQmlRefPointer<QQmlDataBlob> const&>(void
(QQmlTypeLoaderThread::*&&)(QQmlRefPointer<QQmlDataBlob> const&),
QQmlRefPointer<QQmlDataBlob> const&)::I::call(QQmlThread*) () from
/lib64/libQt6Qml.so.6
#29 0x00007f4a54c4c49d in QQmlThreadPrivate::threadEvent() () from
/lib64/libQt6Qml.so.6
#30 0x00007f4a54c4cf2d in QQmlThreadPrivate::event(QEvent*) () from
/lib64/libQt6Qml.so.6
#31 0x00007f4a5403d9b8 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQt6Widgets.so.6
#32 0x00007f4a52ef3590 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib64/libQt6Core.so.6
#33 0x00007f4a52ef6f51 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /lib64/libQt6Core.so.6
#34 0x00007f4a531efb5f in postEventSourceDispatch(_GSource*, int (*)(void*),
void*) () from /lib64/libQt6Core.so.6
#35 0x00007f4a5176a28c in g_main_context_dispatch_unlocked.lto_priv () from
/lib64/libglib-2.0.so.0
#36 0x00007f4a517ca7b8 in g_main_context_iterate_unlocked.isra () from
/lib64/libglib-2.0.so.0
#37 0x00007f4a5176b783 in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#38 0x00007f4a531ef2b3 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt6Core.so.6
#39 0x00007f4a52f00993 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt6Core.so.6
#40 0x00007f4a53019095 in QThread::exec() () from /lib64/libQt6Core.so.6
#41 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#42 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#43 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 22 (Thread 0x7f4a01ffb6c0 (LWP 55611)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a52a416c0 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/lib64/libstdc++.so.6
#3  0x00007f4a55cf209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007f4a55cf23ea in
std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> (),
std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>,
std::__future_base::_Result_base::_Deleter>,
std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >, void>
>::_M_invoke(std::_Any_data const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55cebae6 in
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*) () from
/lib64/libkwin.so.6
#6  0x00007f4a528834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007f4a52883569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007f4a55cec5a3 in
std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >,
void>::_M_complete_async() [clone .lto_priv.0] () from /lib64/libkwin.so.6
#9  0x00007f4a530194b7 in QThreadCreateThread::run() () from
/lib64/libQt6Core.so.6
#10 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#11 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#12 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 21 (Thread 0x7f4a027fc6c0 (LWP 55610)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a52a416c0 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/lib64/libstdc++.so.6
#3  0x00007f4a55cf209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007f4a55cf23ea in
std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> (),
std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>,
std::__future_base::_Result_base::_Deleter>,
std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >, void>
>::_M_invoke(std::_Any_data const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55cebae6 in
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*) () from
/lib64/libkwin.so.6
#6  0x00007f4a528834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007f4a52883569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007f4a55cec5a3 in
std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >,
void>::_M_complete_async() [clone .lto_priv.0] () from /lib64/libkwin.so.6
#9  0x00007f4a530194b7 in QThreadCreateThread::run() () from
/lib64/libQt6Core.so.6
#10 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#11 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#12 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 20 (Thread 0x7f4a1cff96c0 (LWP 55606)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a52a416c0 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/lib64/libstdc++.so.6
#3  0x00007f4a55cf209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007f4a55cf23ea in
std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> (),
std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>,
std::__future_base::_Result_base::_Deleter>,
std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >, void>
>::_M_invoke(std::_Any_data const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55cebae6 in
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*) () from
/lib64/libkwin.so.6
#6  0x00007f4a528834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007f4a52883569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007f4a55cec5a3 in
std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >,
void>::_M_complete_async() [clone .lto_priv.0] () from /lib64/libkwin.so.6
#9  0x00007f4a530194b7 in QThreadCreateThread::run() () from
/lib64/libQt6Core.so.6
#10 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#11 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#12 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 19 (Thread 0x7f4a3e5ff6c0 (LWP 55592)):
#0  0x00007f4a5290434b in recvmsg () from /lib64/libc.so.6
#1  0x00007f4a514c7fa5 in _dbus_read_socket_with_unix_fds () from
/lib64/libdbus-1.so.3
#2  0x00007f4a514c2e82 in do_reading () from /lib64/libdbus-1.so.3
#3  0x00007f4a514c2fca in socket_handle_watch.lto_priv () from
/lib64/libdbus-1.so.3
#4  0x00007f4a514a8fa8 in _dbus_connection_handle_watch () from
/lib64/libdbus-1.so.3
#5  0x00007f4a53563e8d in QDBusConnectionPrivate::socketRead(long long) () from
/lib64/libQt6DBus.so.6
#6  0x00007f4a52f5a26e in void doActivate<false>(QObject*, int, void**) () from
/lib64/libQt6Core.so.6
#7  0x00007f4a52f687fd in QSocketNotifier::activated(QSocketDescriptor,
QSocketNotifier::Type, QSocketNotifier::QPrivateSignal) () from
/lib64/libQt6Core.so.6
#8  0x00007f4a52f68feb in QSocketNotifier::event(QEvent*) () from
/lib64/libQt6Core.so.6
#9  0x00007f4a52ef3573 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib64/libQt6Core.so.6
#10 0x00007f4a531f052f in socketNotifierSourceDispatch(_GSource*, int
(*)(void*), void*) () from /lib64/libQt6Core.so.6
#11 0x00007f4a5176a28c in g_main_context_dispatch_unlocked.lto_priv () from
/lib64/libglib-2.0.so.0
#12 0x00007f4a517ca7b8 in g_main_context_iterate_unlocked.isra () from
/lib64/libglib-2.0.so.0
#13 0x00007f4a5176b783 in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#14 0x00007f4a531ef2b3 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt6Core.so.6
#15 0x00007f4a52f00993 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt6Core.so.6
#16 0x00007f4a53019095 in QThread::exec() () from /lib64/libQt6Core.so.6
#17 0x00007f4a53551581 in QDBusConnectionManager::run() () from
/lib64/libQt6DBus.so.6
#18 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#19 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#20 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 18 (Thread 0x7f4a02ffd6c0 (LWP 55609)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a52a416c0 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/lib64/libstdc++.so.6
#3  0x00007f4a55cf209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007f4a55cf23ea in
std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> (),
std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>,
std::__future_base::_Result_base::_Deleter>,
std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >, void>
>::_M_invoke(std::_Any_data const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55cebae6 in
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*) () from
/lib64/libkwin.so.6
#6  0x00007f4a528834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007f4a52883569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007f4a55cec5a3 in
std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >,
void>::_M_complete_async() [clone .lto_priv.0] () from /lib64/libkwin.so.6
#9  0x00007f4a530194b7 in QThreadCreateThread::run() () from
/lib64/libQt6Core.so.6
#10 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#11 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#12 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 17 (Thread 0x7f49df7fe6c0 (LWP 55631)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a356e72ed in cnd_wait () from /lib64/libgallium-25.0.0.so
#3  0x00007f4a356b1c4b in util_queue_thread_func () from
/lib64/libgallium-25.0.0.so
#4  0x00007f4a356e721c in impl_thrd_routine () from /lib64/libgallium-25.0.0.so
#5  0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#6  0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 16 (Thread 0x7f4a037fe6c0 (LWP 55608)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a52a416c0 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/lib64/libstdc++.so.6
#3  0x00007f4a55cf209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007f4a55cf23ea in
std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> (),
std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>,
std::__future_base::_Result_base::_Deleter>,
std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >, void>
>::_M_invoke(std::_Any_data const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55cebae6 in
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*) () from
/lib64/libkwin.so.6
#6  0x00007f4a528834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007f4a52883569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007f4a55cec5a3 in
std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >,
void>::_M_complete_async() [clone .lto_priv.0] () from /lib64/libkwin.so.6
#9  0x00007f4a530194b7 in QThreadCreateThread::run() () from
/lib64/libQt6Core.so.6
#10 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#11 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#12 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 15 (Thread 0x7f4a03fff6c0 (LWP 55607)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a52a416c0 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/lib64/libstdc++.so.6
#3  0x00007f4a55cf209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007f4a55cf23ea in
std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> (),
std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>,
std::__future_base::_Result_base::_Deleter>,
std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >, void>
>::_M_invoke(std::_Any_data const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55cebae6 in
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*) () from
/lib64/libkwin.so.6
#6  0x00007f4a528834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007f4a52883569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007f4a55cec5a3 in
std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >,
void>::_M_complete_async() [clone .lto_priv.0] () from /lib64/libkwin.so.6
#9  0x00007f4a530194b7 in QThreadCreateThread::run() () from
/lib64/libQt6Core.so.6
#10 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#11 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#12 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 14 (Thread 0x7f4a00ff96c0 (LWP 55629)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a356e72ed in cnd_wait () from /lib64/libgallium-25.0.0.so
#3  0x00007f4a356b1c4b in util_queue_thread_func () from
/lib64/libgallium-25.0.0.so
#4  0x00007f4a356e721c in impl_thrd_routine () from /lib64/libgallium-25.0.0.so
#5  0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#6  0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 13 (Thread 0x7f4a1d7fa6c0 (LWP 55605)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a52a416c0 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/lib64/libstdc++.so.6
#3  0x00007f4a55cf209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007f4a55cf23ea in
std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> (),
std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>,
std::__future_base::_Result_base::_Deleter>,
std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >, void>
>::_M_invoke(std::_Any_data const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55cebae6 in
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*) () from
/lib64/libkwin.so.6
#6  0x00007f4a528834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007f4a52883569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007f4a55cec5a3 in
std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >,
void>::_M_complete_async() [clone .lto_priv.0] () from /lib64/libkwin.so.6
#9  0x00007f4a530194b7 in QThreadCreateThread::run() () from
/lib64/libQt6Core.so.6
#10 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#11 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#12 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 12 (Thread 0x7f4a017fa6c0 (LWP 55613)):
#0  0x00007f4a528f4930 in ppoll () from /lib64/libc.so.6
#1  0x00007f4a517ca8a3 in g_main_context_iterate_unlocked.isra () from
/lib64/libglib-2.0.so.0
#2  0x00007f4a5176b783 in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#3  0x00007f4a531ef2b3 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt6Core.so.6
#4  0x00007f4a52f00993 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt6Core.so.6
#5  0x00007f4a53019095 in QThread::exec() () from /lib64/libQt6Core.so.6
#6  0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#7  0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#8  0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 11 (Thread 0x7f4a1effd6c0 (LWP 55602)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a52a416c0 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/lib64/libstdc++.so.6
#3  0x00007f4a55cf209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007f4a55cf23ea in
std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> (),
std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>,
std::__future_base::_Result_base::_Deleter>,
std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >, void>
>::_M_invoke(std::_Any_data const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55cebae6 in
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*) () from
/lib64/libkwin.so.6
#6  0x00007f4a528834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007f4a52883569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007f4a55cec5a3 in
std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >,
void>::_M_complete_async() [clone .lto_priv.0] () from /lib64/libkwin.so.6
#9  0x00007f4a530194b7 in QThreadCreateThread::run() () from
/lib64/libQt6Core.so.6
#10 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#11 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#12 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 10 (Thread 0x7f4a1dffb6c0 (LWP 55604)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a52a416c0 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/lib64/libstdc++.so.6
#3  0x00007f4a55cf209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007f4a55cf23ea in
std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> (),
std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>,
std::__future_base::_Result_base::_Deleter>,
std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >, void>
>::_M_invoke(std::_Any_data const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55cebae6 in
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*) () from
/lib64/libkwin.so.6
#6  0x00007f4a528834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007f4a52883569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007f4a55cec5a3 in
std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >,
void>::_M_complete_async() [clone .lto_priv.0] () from /lib64/libkwin.so.6
#9  0x00007f4a530194b7 in QThreadCreateThread::run() () from
/lib64/libQt6Core.so.6
#10 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#11 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#12 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 9 (Thread 0x7f49deffd6c0 (LWP 55632)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a356e72ed in cnd_wait () from /lib64/libgallium-25.0.0.so
#3  0x00007f4a356b1c4b in util_queue_thread_func () from
/lib64/libgallium-25.0.0.so
#4  0x00007f4a356e721c in impl_thrd_routine () from /lib64/libgallium-25.0.0.so
#5  0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#6  0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 8 (Thread 0x7f4a3d2796c0 (LWP 55596)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a356e72ed in cnd_wait () from /lib64/libgallium-25.0.0.so
#3  0x00007f4a356b1c4b in util_queue_thread_func () from
/lib64/libgallium-25.0.0.so
#4  0x00007f4a356e721c in impl_thrd_routine () from /lib64/libgallium-25.0.0.so
#5  0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#6  0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 7 (Thread 0x7f4a1e7fc6c0 (LWP 55603)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a52a416c0 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/lib64/libstdc++.so.6
#3  0x00007f4a55cf209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007f4a55cf23ea in
std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> (),
std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>,
std::__future_base::_Result_base::_Deleter>,
std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >, void>
>::_M_invoke(std::_Any_data const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55cebae6 in
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*) () from
/lib64/libkwin.so.6
#6  0x00007f4a528834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007f4a52883569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007f4a55cec5a3 in
std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >,
void>::_M_complete_async() [clone .lto_priv.0] () from /lib64/libkwin.so.6
#9  0x00007f4a530194b7 in QThreadCreateThread::run() () from
/lib64/libQt6Core.so.6
#10 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#11 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#12 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 6 (Thread 0x7f4a3ca786c0 (LWP 55597)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a356e72ed in cnd_wait () from /lib64/libgallium-25.0.0.so
#3  0x00007f4a356b1c4b in util_queue_thread_func () from
/lib64/libgallium-25.0.0.so
#4  0x00007f4a356e721c in impl_thrd_routine () from /lib64/libgallium-25.0.0.so
#5  0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#6  0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 5 (Thread 0x7f4a1f7fe6c0 (LWP 55601)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a52a416c0 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/lib64/libstdc++.so.6
#3  0x00007f4a55cf209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007f4a55cf23ea in
std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> (),
std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>,
std::__future_base::_Result_base::_Deleter>,
std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >, void>
>::_M_invoke(std::_Any_data const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55cebae6 in
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*) () from
/lib64/libkwin.so.6
#6  0x00007f4a528834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007f4a52883569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007f4a55cec5a3 in
std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >,
void>::_M_complete_async() [clone .lto_priv.0] () from /lib64/libkwin.so.6
#9  0x00007f4a530194b7 in QThreadCreateThread::run() () from
/lib64/libQt6Core.so.6
#10 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#11 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#12 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 4 (Thread 0x7f4a1ffff6c0 (LWP 55600)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a52a416c0 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/lib64/libstdc++.so.6
#3  0x00007f4a55cf209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007f4a55cf23ea in
std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> (),
std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>,
std::__future_base::_Result_base::_Deleter>,
std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >, void>
>::_M_invoke(std::_Any_data const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55cebae6 in
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*) () from
/lib64/libkwin.so.6
#6  0x00007f4a528834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007f4a52883569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007f4a55cec5a3 in
std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >,
void>::_M_complete_async() [clone .lto_priv.0] () from /lib64/libkwin.so.6
#9  0x00007f4a530194b7 in QThreadCreateThread::run() () from
/lib64/libQt6Core.so.6
#10 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#11 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#12 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 3 (Thread 0x7f4a2cdfe6c0 (LWP 55599)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a52a416c0 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/lib64/libstdc++.so.6
#3  0x00007f4a55cf209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007f4a55cf23ea in
std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> (),
std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>,
std::__future_base::_Result_base::_Deleter>,
std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >, void>
>::_M_invoke(std::_Any_data const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55cebae6 in
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*) () from
/lib64/libkwin.so.6
#6  0x00007f4a528834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007f4a52883569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007f4a55cec5a3 in
std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >,
void>::_M_complete_async() [clone .lto_priv.0] () from /lib64/libkwin.so.6
#9  0x00007f4a530194b7 in QThreadCreateThread::run() () from
/lib64/libQt6Core.so.6
#10 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#11 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#12 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 2 (Thread 0x7f4a2d5ff6c0 (LWP 55598)):
#0  0x00007f4a5287a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f4a5287d239 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libc.so.6
#2  0x00007f4a52a416c0 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/lib64/libstdc++.so.6
#3  0x00007f4a55cf209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007f4a55cf23ea in
std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> (),
std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>,
std::__future_base::_Result_base::_Deleter>,
std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >, void>
>::_M_invoke(std::_Any_data const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55cebae6 in
std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*) () from
/lib64/libkwin.so.6
#6  0x00007f4a528834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007f4a52883569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007f4a55cec5a3 in
std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString
const&)::{lambda()#1}>(KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*,
QString const&)::{lambda()#1}&&)::{lambda((auto:1&&)...)#1}> >,
void>::_M_complete_async() [clone .lto_priv.0] () from /lib64/libkwin.so.6
#9  0x00007f4a530194b7 in QThreadCreateThread::run() () from
/lib64/libQt6Core.so.6
#10 0x00007f4a530b67e9 in QThreadPrivate::start(void*) () from
/lib64/libQt6Core.so.6
#11 0x00007f4a5287e168 in start_thread () from /lib64/libc.so.6
#12 0x00007f4a5290214c in __clone3 () from /lib64/libc.so.6

Thread 1 (Thread 0x7f4a4c3d52c0 (LWP 55581)):
[KCrash Handler]
#4  0x00007f4a55d122f3 in
KWin::DrmPipeline::prepareAtomicPresentation(KWin::DrmAtomicCommit*,
std::shared_ptr<KWin::OutputFrame> const&) () from /lib64/libkwin.so.6
#5  0x00007f4a55d14208 in
KWin::DrmPipeline::present(std::shared_ptr<KWin::OutputFrame> const&) () from
/lib64/libkwin.so.6
#6  0x00007f4a55d16002 in
KWin::DrmOutput::present(std::shared_ptr<KWin::OutputFrame> const&) () from
/lib64/libkwin.so.6
#7  0x00007f4a55a60e03 in KWin::WaylandCompositor::composite(KWin::RenderLoop*)
() from /lib64/libkwin.so.6
#8  0x00007f4a52f5a26e in void doActivate<false>(QObject*, int, void**) () from
/lib64/libQt6Core.so.6
#9  0x00007f4a55a759b4 in KWin::RenderLoop::frameRequested(KWin::RenderLoop*)
() from /lib64/libkwin.so.6
#10 0x00007f4a55a7a9d2 in KWin::RenderLoopPrivate::dispatch() () from
/lib64/libkwin.so.6
#11 0x00007f4a52f5a26e in void doActivate<false>(QObject*, int, void**) () from
/lib64/libQt6Core.so.6
#12 0x00007f4a52f6a02d in QTimer::timeout(QTimer::QPrivateSignal) () from
/lib64/libQt6Core.so.6
#13 0x00007f4a52f4b935 in QObject::event(QEvent*) () from
/lib64/libQt6Core.so.6
#14 0x00007f4a5403d9b8 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQt6Widgets.so.6
#15 0x00007f4a52ef3590 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib64/libQt6Core.so.6
#16 0x00007f4a530b4e28 in QTimerInfoList::activateTimers() () from
/lib64/libQt6Core.so.6
#17 0x00007f4a530b929b in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt6Core.so.6
#18 0x00007f4a53ccabf2 in
QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /lib64/libQt6Gui.so.6
#19 0x00007f4a52f00993 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt6Core.so.6
#20 0x00007f4a52efbf6e in QCoreApplication::exec() () from
/lib64/libQt6Core.so.6
#21 0x00005627c1ae6753 in main ()

Reported using DrKonqi

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