Bug 500944

Summary: All screens go black when second external monitor connected (3 of 7)
Product: [Plasma] kwin Reporter: Henrik <henrik>
Component: generalAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: crash CC: filip.kendes1
Priority: NOR Keywords: drkonqi
Version First Reported In: 6.3.2   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report: https://crash-reports.kde.org/organizations/kde/issues/140224/events/96db45b1cc66422098103bf45debd8c0/

Description Henrik 2025-03-02 10:11:07 UTC 
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 6 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 55655]
[New LWP 55676]
[New LWP 55675]
[New LWP 55677]
[New LWP 55681]
[New LWP 55679]
[New LWP 55706]
[New LWP 55680]
[New LWP 55682]
[New LWP 55705]
[New LWP 55683]
[New LWP 55711]
[New LWP 55684]
[New LWP 55685]
[New LWP 55678]
[New LWP 55686]
[New LWP 55687]
[New LWP 55688]
[New LWP 55669]
[New LWP 55674]
[New LWP 55689]
[New LWP 55673]
[New LWP 55710]
[New LWP 55708]
[New LWP 55707]
[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  0x00007fc885a80114 in __pthread_kill_implementation () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7fc87f7c52c0 (LWP 55655))]
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 0x7fc87f7c52c0 (LWP 55655))]

Thread 25 (Thread 0x7fc8167fc6c0 (LWP 55707)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc8696e72ed in cnd_wait () from /lib64/libgallium-25.0.0.so
#3  0x00007fc8696b1c4b in util_queue_thread_func () from /lib64/libgallium-25.0.0.so
#4  0x00007fc8696e721c in impl_thrd_routine () from /lib64/libgallium-25.0.0.so
#5  0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#6  0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 24 (Thread 0x7fc815ffb6c0 (LWP 55708)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc8696e72ed in cnd_wait () from /lib64/libgallium-25.0.0.so
#3  0x00007fc8696b1c4b in util_queue_thread_func () from /lib64/libgallium-25.0.0.so
#4  0x00007fc8696e721c in impl_thrd_routine () from /lib64/libgallium-25.0.0.so
#5  0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#6  0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 23 (Thread 0x7fc8157fa6c0 (LWP 55710)):
#0  strcmp () at ../sysdeps/x86_64/multiarch/../multiarch/strcmp-sse2.S:183
#1  0x00007fc88999cefb in _dl_map_object (loader=0x7fc885e63a70, name=0x7fc8854a8859 "libc.so.6", type=1, trace_mode=0, mode=-2147483648, nsid=0) at dl-load.c:1932
#2  0x00007fc8899978bd in openaux (a=a@entry=0x7fc8157f7580) at dl-deps.c:64
#3  0x00007fc889996523 in __GI__dl_catch_exception (exception=exception@entry=0x7fc8157f7560, operate=operate@entry=0x7fc889997880 <openaux>, args=args@entry=0x7fc8157f7580) at dl-catch.c:241
#4  0x00007fc889997d28 in _dl_map_object_deps (map=map@entry=0x7fc7f80d0090, preloads=preloads@entry=0x0, npreloads=npreloads@entry=0, trace_mode=trace_mode@entry=0, open_mode=open_mode@entry=-2147483648) at dl-deps.c:232
#5  0x00007fc8899a0de5 in dl_open_worker_begin (a=a@entry=0x7fc8157f7d60) at dl-open.c:613
#6  0x00007fc889996523 in __GI__dl_catch_exception (exception=exception@entry=0x7fc8157f7bb0, operate=operate@entry=0x7fc8899a0cd0 <dl_open_worker_begin>, args=args@entry=0x7fc8157f7d60) at dl-catch.c:241
#7  0x00007fc8899a04a0 in dl_open_worker (a=a@entry=0x7fc8157f7d60) at dl-open.c:778
#8  0x00007fc889996523 in __GI__dl_catch_exception (exception=exception@entry=0x7fc8157f7d40, operate=operate@entry=0x7fc8899a0460 <dl_open_worker>, args=args@entry=0x7fc8157f7d60) at dl-catch.c:241
#9  0x00007fc8899a0904 in _dl_open (file=0x7fc7f80cb310 "/usr/lib64/qt6/qml/QtQuick/Layouts/libqquicklayoutsplugin.so", mode=<optimized out>, caller_dlopen=0x7fc8863ed5d7 <QLibraryPrivate::load_sys()+3495>, nsid=<optimized out>, argc=14, argv=0x7ffd7b2cde98, env=0x56409c947fd0) at dl-open.c:880
#10 0x00007fc885a79cf4 in dlopen_doit () from /lib64/libc.so.6
#11 0x00007fc889996523 in __GI__dl_catch_exception (exception=exception@entry=0x7fc8157f7f50, operate=0x7fc885a79c90 <dlopen_doit>, args=0x7fc8157f8010) at dl-catch.c:241
#12 0x00007fc889996679 in _dl_catch_error (objname=0x7fc8157f7fb8, errstring=0x7fc8157f7fc0, mallocedp=0x7fc8157f7fb7, operate=<optimized out>, args=<optimized out>) at dl-catch.c:260
#13 0x00007fc885a797e3 in _dlerror_run () from /lib64/libc.so.6
#14 0x00007fc885a79daf in dlopen@GLIBC_2.2.5 () from /lib64/libc.so.6
#15 0x00007fc8863ed5d7 in QLibraryPrivate::load_sys() () from /lib64/libQt6Core.so.6
#16 0x00007fc8863e83d8 in QLibraryPrivate::load() () from /lib64/libQt6Core.so.6
#17 0x00007fc8863e87c3 in QLibraryPrivate::loadPlugin() () from /lib64/libQt6Core.so.6
#18 0x00007fc886180dd6 in QPluginLoader::load() () from /lib64/libQt6Core.so.6
#19 0x00007fc887f2ddb7 in QQmlPluginImporter::importDynamicPlugin(QString const&, QString const&, bool) () from /lib64/libQt6Qml.so.6
#20 0x00007fc887f2ee85 in QQmlPluginImporter::importPlugins() () from /lib64/libQt6Qml.so.6
#21 0x00007fc887ec2ac8 in QQmlImports::importExtension(QQmlTypeLoader*, QString const&, QTypeRevision, QQmlTypeLoaderQmldirContent const*, QList<QQmlError>*) () from /lib64/libQt6Qml.so.6
#22 0x00007fc887ecadcc 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
#23 0x00007fc887fb9a06 in QQmlTypeLoader::Blob::addLibraryImport(std::shared_ptr<QQmlTypeLoader::Blob::PendingImport> const&, QList<QQmlError>*) () from /lib64/libQt6Qml.so.6
#24 0x00007fc887fba2ec in QQmlTypeLoader::Blob::addImport(QV4::CompiledData::Import const*, QFlags<QQmlImports::ImportFlag>, QList<QQmlError>*) () from /lib64/libQt6Qml.so.6
#25 0x00007fc887f96c39 in QQmlTypeData::loadFromDiskCache(QQmlRefPointer<QV4::CompiledData::CompilationUnit> const&) () from /lib64/libQt6Qml.so.6
#26 0x00007fc887f982db in QQmlTypeData::tryLoadFromDiskCache() [clone .part.0] () from /lib64/libQt6Qml.so.6
#27 0x00007fc887f98608 in QQmlTypeData::dataReceived(QQmlDataBlob::SourceCodeData const&) () from /lib64/libQt6Qml.so.6
#28 0x00007fc887fb57b5 in QQmlTypeLoader::setData(QQmlRefPointer<QQmlDataBlob> const&, QQmlDataBlob::SourceCodeData const&) () from /lib64/libQt6Qml.so.6
#29 0x00007fc887fb6194 in QQmlTypeLoader::setData(QQmlRefPointer<QQmlDataBlob> const&, QString const&) () from /lib64/libQt6Qml.so.6
#30 0x00007fc887fb62c0 in QQmlTypeLoader::loadThread(QQmlRefPointer<QQmlDataBlob> const&) () from /lib64/libQt6Qml.so.6
#31 0x00007fc887fc406c 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
#32 0x00007fc887e4c49d in QQmlThreadPrivate::threadEvent() () from /lib64/libQt6Qml.so.6
#33 0x00007fc887e4cf2d in QQmlThreadPrivate::event(QEvent*) () from /lib64/libQt6Qml.so.6
#34 0x00007fc88743d9b8 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#35 0x00007fc8860f3590 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#36 0x00007fc8860f6f51 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt6Core.so.6
#37 0x00007fc8863efb5f in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt6Core.so.6
#38 0x00007fc884b6a28c in g_main_context_dispatch_unlocked.lto_priv () from /lib64/libglib-2.0.so.0
#39 0x00007fc884bca7b8 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#40 0x00007fc884b6b783 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#41 0x00007fc8863ef2b3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#42 0x00007fc886100993 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#43 0x00007fc886219095 in QThread::exec() () from /lib64/libQt6Core.so.6
#44 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#45 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#46 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 22 (Thread 0x7fc8615ff6c0 (LWP 55673)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc8696e72ed in cnd_wait () from /lib64/libgallium-25.0.0.so
#3  0x00007fc8696b1c4b in util_queue_thread_func () from /lib64/libgallium-25.0.0.so
#4  0x00007fc8696e721c in impl_thrd_routine () from /lib64/libgallium-25.0.0.so
#5  0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#6  0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 21 (Thread 0x7fc817fff6c0 (LWP 55689)):
#0  0x00007fc885af4930 in ppoll () from /lib64/libc.so.6
#1  0x00007fc884bca8a3 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#2  0x00007fc884b6b783 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fc8863ef2b3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#4  0x00007fc886100993 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#5  0x00007fc886219095 in QThread::exec() () from /lib64/libQt6Core.so.6
#6  0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#8  0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 20 (Thread 0x7fc860dfe6c0 (LWP 55674)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc8696e72ed in cnd_wait () from /lib64/libgallium-25.0.0.so
#3  0x00007fc8696b1c4b in util_queue_thread_func () from /lib64/libgallium-25.0.0.so
#4  0x00007fc8696e721c in impl_thrd_routine () from /lib64/libgallium-25.0.0.so
#5  0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#6  0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 19 (Thread 0x7fc8719ff6c0 (LWP 55669)):
#0  0x00007fc885af4930 in ppoll () from /lib64/libc.so.6
#1  0x00007fc884bca8a3 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#2  0x00007fc884b6b783 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fc8863ef2b3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#4  0x00007fc886100993 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#5  0x00007fc886219095 in QThread::exec() () from /lib64/libQt6Core.so.6
#6  0x00007fc887268581 in QDBusConnectionManager::run() () from /lib64/libQt6DBus.so.6
#7  0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#8  0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#9  0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 18 (Thread 0x7fc834ff96c0 (LWP 55688)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc885c416c0 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#3  0x00007fc8890f209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007fc8890f23ea 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  0x00007fc8890ebae6 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  0x00007fc885a834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007fc885a83569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007fc8890ec5a3 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  0x00007fc8862194b7 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#10 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#12 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 17 (Thread 0x7fc8357fa6c0 (LWP 55687)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc885c416c0 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#3  0x00007fc8890f209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007fc8890f23ea 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  0x00007fc8890ebae6 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  0x00007fc885a834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007fc885a83569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007fc8890ec5a3 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  0x00007fc8862194b7 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#10 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#12 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 16 (Thread 0x7fc835ffb6c0 (LWP 55686)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc885c416c0 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#3  0x00007fc8890f209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007fc8890f23ea 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  0x00007fc8890ebae6 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  0x00007fc885a834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007fc885a83569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007fc8890ec5a3 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  0x00007fc8862194b7 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#10 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#12 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 15 (Thread 0x7fc85a7fc6c0 (LWP 55678)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc885c416c0 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#3  0x00007fc8890f209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007fc8890f23ea 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  0x00007fc8890ebae6 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  0x00007fc885a834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007fc885a83569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007fc8890ec5a3 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  0x00007fc8862194b7 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#10 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#12 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 14 (Thread 0x7fc8367fc6c0 (LWP 55685)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc885c416c0 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#3  0x00007fc8890f209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007fc8890f23ea 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  0x00007fc8890ebae6 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  0x00007fc885a834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007fc885a83569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007fc8890ec5a3 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  0x00007fc8862194b7 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#10 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#12 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 13 (Thread 0x7fc836ffd6c0 (LWP 55684)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc885c416c0 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#3  0x00007fc8890f209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007fc8890f23ea 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  0x00007fc8890ebae6 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  0x00007fc885a834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007fc885a83569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007fc8890ec5a3 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  0x00007fc8862194b7 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#10 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#12 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 12 (Thread 0x7fc814ff96c0 (LWP 55711)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d5a2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc8862c32f4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#3  0x00007fc8862c0023 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#4  0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#5  0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#6  0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 11 (Thread 0x7fc8377fe6c0 (LWP 55683)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc885c416c0 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#3  0x00007fc8890f209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007fc8890f23ea 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  0x00007fc8890ebae6 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  0x00007fc885a834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007fc885a83569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007fc8890ec5a3 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  0x00007fc8862194b7 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#10 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#12 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 10 (Thread 0x7fc8177fe6c0 (LWP 55705)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc8696e72ed in cnd_wait () from /lib64/libgallium-25.0.0.so
#3  0x00007fc8696b1c4b in util_queue_thread_func () from /lib64/libgallium-25.0.0.so
#4  0x00007fc8696e721c in impl_thrd_routine () from /lib64/libgallium-25.0.0.so
#5  0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#6  0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 9 (Thread 0x7fc837fff6c0 (LWP 55682)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc885c416c0 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#3  0x00007fc8890f209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007fc8890f23ea 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  0x00007fc8890ebae6 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  0x00007fc885a834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007fc885a83569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007fc8890ec5a3 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  0x00007fc8862194b7 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#10 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#12 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 8 (Thread 0x7fc8597fa6c0 (LWP 55680)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc885c416c0 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#3  0x00007fc8890f209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007fc8890f23ea 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  0x00007fc8890ebae6 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  0x00007fc885a834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007fc885a83569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007fc8890ec5a3 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  0x00007fc8862194b7 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#10 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#12 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 7 (Thread 0x7fc816ffd6c0 (LWP 55706)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc8696e72ed in cnd_wait () from /lib64/libgallium-25.0.0.so
#3  0x00007fc8696b1c4b in util_queue_thread_func () from /lib64/libgallium-25.0.0.so
#4  0x00007fc8696e721c in impl_thrd_routine () from /lib64/libgallium-25.0.0.so
#5  0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#6  0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 6 (Thread 0x7fc859ffb6c0 (LWP 55679)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc885c416c0 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#3  0x00007fc8890f209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007fc8890f23ea 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  0x00007fc8890ebae6 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  0x00007fc885a834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007fc885a83569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007fc8890ec5a3 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  0x00007fc8862194b7 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#10 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#12 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 5 (Thread 0x7fc858ff96c0 (LWP 55681)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc885c416c0 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#3  0x00007fc8890f209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007fc8890f23ea 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  0x00007fc8890ebae6 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  0x00007fc885a834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007fc885a83569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007fc8890ec5a3 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  0x00007fc8862194b7 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#10 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#12 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 4 (Thread 0x7fc85affd6c0 (LWP 55677)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc885c416c0 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#3  0x00007fc8890f209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007fc8890f23ea 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  0x00007fc8890ebae6 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  0x00007fc885a834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007fc885a83569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007fc8890ec5a3 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  0x00007fc8862194b7 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#10 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#12 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 3 (Thread 0x7fc85bfff6c0 (LWP 55675)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc885c416c0 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#3  0x00007fc8890f209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007fc8890f23ea 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  0x00007fc8890ebae6 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  0x00007fc885a834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007fc885a83569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007fc8890ec5a3 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  0x00007fc8862194b7 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#10 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#12 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 2 (Thread 0x7fc85b7fe6c0 (LWP 55676)):
#0  0x00007fc885a7a7e9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc885a7d239 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc885c416c0 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /lib64/libstdc++.so.6
#3  0x00007fc8890f209b in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#4  0x00007fc8890f23ea 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  0x00007fc8890ebae6 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  0x00007fc885a834fb in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#7  0x00007fc885a83569 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#8  0x00007fc8890ec5a3 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  0x00007fc8862194b7 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#10 0x00007fc8862b67e9 in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fc885a7e168 in start_thread () from /lib64/libc.so.6
#12 0x00007fc885b0214c in __clone3 () from /lib64/libc.so.6

Thread 1 (Thread 0x7fc87f7c52c0 (LWP 55655)):
[KCrash Handler]
#4  0x00007fc8891122f3 in KWin::DrmPipeline::prepareAtomicPresentation(KWin::DrmAtomicCommit*, std::shared_ptr<KWin::OutputFrame> const&) () from /lib64/libkwin.so.6
#5  0x00007fc889114208 in KWin::DrmPipeline::present(std::shared_ptr<KWin::OutputFrame> const&) () from /lib64/libkwin.so.6
#6  0x00007fc889116002 in KWin::DrmOutput::present(std::shared_ptr<KWin::OutputFrame> const&) () from /lib64/libkwin.so.6
#7  0x00007fc888e60e03 in KWin::WaylandCompositor::composite(KWin::RenderLoop*) () from /lib64/libkwin.so.6
#8  0x00007fc88615a26e in void doActivate<false>(QObject*, int, void**) () from /lib64/libQt6Core.so.6
#9  0x00007fc888e759b4 in KWin::RenderLoop::frameRequested(KWin::RenderLoop*) () from /lib64/libkwin.so.6
#10 0x00007fc888e7a9d2 in KWin::RenderLoopPrivate::dispatch() () from /lib64/libkwin.so.6
#11 0x00007fc88615a26e in void doActivate<false>(QObject*, int, void**) () from /lib64/libQt6Core.so.6
#12 0x00007fc88616a02d in QTimer::timeout(QTimer::QPrivateSignal) () from /lib64/libQt6Core.so.6
#13 0x00007fc88614b935 in QObject::event(QEvent*) () from /lib64/libQt6Core.so.6
#14 0x00007fc88743d9b8 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#15 0x00007fc8860f3590 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#16 0x00007fc8862b4e28 in QTimerInfoList::activateTimers() () from /lib64/libQt6Core.so.6
#17 0x00007fc8862b929b in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#18 0x00007fc886ecabf2 in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Gui.so.6
#19 0x00007fc886100993 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#20 0x00007fc8860fbf6e in QCoreApplication::exec() () from /lib64/libQt6Core.so.6
#21 0x000056406bd55753 in main ()

Reported using DrKonqi
Comment 1 Filip 2025-03-02 18:27:52 UTC 

*** This bug has been marked as a duplicate of bug 500942 ***