Bug 505622

Summary: KWin and DE crashes upon login.
Product: [Plasma] kwin Reporter: snowsnooks
Component: generalAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version First Reported In: 6.3.5   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report: https://crash-reports.kde.org/organizations/kde/issues/179027/events/a7694f9265894fbabd7cef2ca772c9ed/

Description snowsnooks 2025-06-15 10:16:00 UTC 
Application: kwin_wayland (6.3.5)

ApplicationNotResponding [ANR]: false
Qt Version: 6.9.1
Frameworks Version: 6.14.0
Operating System: Linux 6.14.9-300.fc42.x86_64 x86_64
Windowing System: Wayland
Distribution: "Fedora Linux 42 (KDE Plasma Desktop Edition)"
DrKonqi: 6.3.5 [CoredumpBackend]

-- Information about the crash:
Running Fedora 42 KDE, past two days, every time I boot up KDE crashes and I dont have a desktop. When I roll back with snapper, it dissapears, but then reappears a few reboots later. Considering re-installing, not sure how to fix this.

The reporter is unsure if this crash is reproducible.

-- 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:JSVMStack:QtQml (deleted) during file-backed mapping note processing

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

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

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

warning: Can't open file /memfd:unknown-usage:QtQml (deleted) during file-backed mapping note processing
[New LWP 3560]
[New LWP 3597]
[New LWP 3584]
[New LWP 3626]
[New LWP 3735]
[New LWP 3662]
[New LWP 3627]
[New LWP 3736]
[New LWP 3598]
[New LWP 3596]
[New LWP 3664]
[New LWP 3629]
[New LWP 3738]
[New LWP 4448]
[New LWP 4445]
[New LWP 3665]
[New LWP 3737]
[New LWP 3980]
[New LWP 3663]
[New LWP 3594]
[New LWP 4444]
[New LWP 3666]
[New LWP 3599]
[New LWP 3595]
[New LWP 3661]
[New LWP 3600]
[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 :0 --xwayland-xauthority /run/user/1000/xauth_fyBuKu --xwayland'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f01c1c8111c in __pthread_kill_implementation () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7f01bbfcb440 (LWP 3560))]
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 0x7f01bbfcb440 (LWP 3560))]

Thread 26 (Thread 0x7f0195ffb6c0 (LWP 3600)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e71e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01a574045d in cnd_wait () from /lib64/libgallium-25.0.7.so
#5  0x00007f01a56faffc in util_queue_thread_func () from /lib64/libgallium-25.0.7.so
#6  0x00007f01a574038c in impl_thrd_routine () from /lib64/libgallium-25.0.7.so
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 25 (Thread 0x7f0194ff96c0 (LWP 3661)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e71e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01a574045d in cnd_wait () from /lib64/libgallium-25.0.7.so
#5  0x00007f01a56faffc in util_queue_thread_func () from /lib64/libgallium-25.0.7.so
#6  0x00007f01a574038c in impl_thrd_routine () from /lib64/libgallium-25.0.7.so
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 24 (Thread 0x7f019c9ff6c0 (LWP 3595)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e71e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01a574045d in cnd_wait () from /lib64/libgallium-25.0.7.so
#5  0x00007f01a56faffc in util_queue_thread_func () from /lib64/libgallium-25.0.7.so
#6  0x00007f01a574038c in impl_thrd_routine () from /lib64/libgallium-25.0.7.so
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 23 (Thread 0x7f01967fc6c0 (LWP 3599)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e71e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01a574045d in cnd_wait () from /lib64/libgallium-25.0.7.so
#5  0x00007f01a56faffc in util_queue_thread_func () from /lib64/libgallium-25.0.7.so
#6  0x00007f01a574038c in impl_thrd_routine () from /lib64/libgallium-25.0.7.so
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 22 (Thread 0x7f0153fff6c0 (LWP 3666)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e928 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01c24d3a26 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f01c24d05f7 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f01c24c5b9f in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 21 (Thread 0x7f01369fe6c0 (LWP 4444)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e928 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01c24d3a26 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f01c24d05f7 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f01c24c5b9f in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 20 (Thread 0x7f01aced86c0 (LWP 3594)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e71e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01a574045d in cnd_wait () from /lib64/libgallium-25.0.7.so
#5  0x00007f01a56faffc in util_queue_thread_func () from /lib64/libgallium-25.0.7.so
#6  0x00007f01a574038c in impl_thrd_routine () from /lib64/libgallium-25.0.7.so
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 19 (Thread 0x7f01737fe6c0 (LWP 3663)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e71e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01a574045d in cnd_wait () from /lib64/libgallium-25.0.7.so
#5  0x00007f01a56faffc in util_queue_thread_func () from /lib64/libgallium-25.0.7.so
#6  0x00007f01a574038c in impl_thrd_routine () from /lib64/libgallium-25.0.7.so
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 18 (Thread 0x7f01371ff6c0 (LWP 3980)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e928 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01c24d3a26 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f01c24d05f7 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f01c24c5b9f in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 17 (Thread 0x7f0145d216c0 (LWP 3737)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e928 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01c24d3a26 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f01c24d05f7 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f01c24c5b9f in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 16 (Thread 0x7f0172ffd6c0 (LWP 3665)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7ba24 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007f01c1cf5176 in ppoll () from /lib64/libc.so.6
#4  0x00007f01c0d1e890 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#5  0x00007f01c0d1e953 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#6  0x00007f01c260f9ad in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#7  0x00007f01c2307b03 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#8  0x00007f01c242808d in QThread::exec() () from /lib64/libQt6Core.so.6
#9  0x00007f01c24c5b9f in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#10 0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#11 0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 15 (Thread 0x7f01361fd6c0 (LWP 4445)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e928 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01c24d3a26 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f01c24d05f7 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f01c24c5b9f in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 14 (Thread 0x7f01359fc6c0 (LWP 4448)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e928 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01c24d3a26 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f01c24d05f7 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f01c24c5b9f in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 13 (Thread 0x7f01455206c0 (LWP 3738)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e928 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01c24d3a26 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f01c24d05f7 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f01c24c5b9f in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 12 (Thread 0x7f01957fa6c0 (LWP 3629)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7ba24 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007f01c1cf5176 in ppoll () from /lib64/libc.so.6
#4  0x00007f01c0d1e890 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#5  0x00007f01c0d1e953 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#6  0x00007f01c260f9ad in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#7  0x00007f01c2307b03 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#8  0x00007f01c242808d in QThread::exec() () from /lib64/libQt6Core.so.6
#9  0x00007f01c24c5b9f in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#10 0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#11 0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 11 (Thread 0x7f0171ffb6c0 (LWP 3664)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e71e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01a574045d in cnd_wait () from /lib64/libgallium-25.0.7.so
#5  0x00007f01a56faffc in util_queue_thread_func () from /lib64/libgallium-25.0.7.so
#6  0x00007f01a574038c in impl_thrd_routine () from /lib64/libgallium-25.0.7.so
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 10 (Thread 0x7f0197fff6c0 (LWP 3596)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e71e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01a574045d in cnd_wait () from /lib64/libgallium-25.0.7.so
#5  0x00007f01a56faffc in util_queue_thread_func () from /lib64/libgallium-25.0.7.so
#6  0x00007f01a574038c in impl_thrd_routine () from /lib64/libgallium-25.0.7.so
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 9 (Thread 0x7f0196ffd6c0 (LWP 3598)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e71e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01a574045d in cnd_wait () from /lib64/libgallium-25.0.7.so
#5  0x00007f01a56faffc in util_queue_thread_func () from /lib64/libgallium-25.0.7.so
#6  0x00007f01a574038c in impl_thrd_routine () from /lib64/libgallium-25.0.7.so
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 8 (Thread 0x7f01465226c0 (LWP 3736)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e928 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01c24d3a26 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f01c24d05f7 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f01c24c5b9f in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 7 (Thread 0x7f0170ff96c0 (LWP 3627)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7eb52 in pthread_cond_clockwait@GLIBC_2.30 () from /lib64/libc.so.6
#4  0x00007f01c5346cf8 in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#5  0x00007f01c534794a 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
#6  0x00007f01c5341f96 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
#7  0x00007f01c1c84554 in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#8  0x00007f01c1c845c9 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#9  0x00007f01c5342a43 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
#10 0x00007f01c2428667 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#11 0x00007f01c24c5b9f in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#12 0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#13 0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 6 (Thread 0x7f0173fff6c0 (LWP 3662)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e71e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01a574045d in cnd_wait () from /lib64/libgallium-25.0.7.so
#5  0x00007f01a56faffc in util_queue_thread_func () from /lib64/libgallium-25.0.7.so
#6  0x00007f01a574038c in impl_thrd_routine () from /lib64/libgallium-25.0.7.so
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 5 (Thread 0x7f0146d236c0 (LWP 3735)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e928 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01c24d3a26 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f01c24d05f7 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f01c24c5b9f in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 4 (Thread 0x7f01717fa6c0 (LWP 3626)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7eb52 in pthread_cond_clockwait@GLIBC_2.30 () from /lib64/libc.so.6
#4  0x00007f01c5346cf8 in KWin::DrmCommitThread::DrmCommitThread(KWin::DrmGpu*, QString const&)::{lambda()#1}::operator()() const () from /lib64/libkwin.so.6
#5  0x00007f01c534794a 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
#6  0x00007f01c5341f96 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
#7  0x00007f01c1c84554 in __pthread_once_slow.isra.0 () from /lib64/libc.so.6
#8  0x00007f01c1c845c9 in pthread_once@GLIBC_2.2.5 () from /lib64/libc.so.6
#9  0x00007f01c5342a43 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
#10 0x00007f01c2428667 in QThreadCreateThread::run() () from /lib64/libQt6Core.so.6
#11 0x00007f01c24c5b9f in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#12 0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#13 0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 3 (Thread 0x7f01adfff6c0 (LWP 3584)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7ba24 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007f01c1cf5176 in ppoll () from /lib64/libc.so.6
#4  0x00007f01c0d1e890 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#5  0x00007f01c0d1e953 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#6  0x00007f01c260f9ad in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#7  0x00007f01c2307b03 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#8  0x00007f01c242808d in QThread::exec() () from /lib64/libQt6Core.so.6
#9  0x00007f01c3462821 in QDBusConnectionManager::run() () from /lib64/libQt6DBus.so.6
#10 0x00007f01c24c5b9f in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#12 0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 2 (Thread 0x7f01977fe6c0 (LWP 3597)):
#0  0x00007f01c1c876c2 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f01c1c7b9da in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f01c1c7c04c in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f01c1c7e71e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f01a574045d in cnd_wait () from /lib64/libgallium-25.0.7.so
#5  0x00007f01a56faffc in util_queue_thread_func () from /lib64/libgallium-25.0.7.so
#6  0x00007f01a574038c in impl_thrd_routine () from /lib64/libgallium-25.0.7.so
#7  0x00007f01c1c7f1d4 in start_thread () from /lib64/libc.so.6
#8  0x00007f01c1d01cec in __clone3 () from /lib64/libc.so.6

Thread 1 (Thread 0x7f01bbfcb440 (LWP 3560)):
[KCrash Handler]
#4  0x00007f01c3f076f7 in KConfigWatcher::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /lib64/libKF6ConfigCore.so.6
#5  0x00007f01c3f079f2 in KConfigWatcher::qt_metacall(QMetaObject::Call, int, void**) () from /lib64/libKF6ConfigCore.so.6
#6  0x00007f01c346fa9e in QDBusConnectionPrivate::deliverCall(QObject*, QDBusMessage const&, QList<QMetaType> const&, int) () from /lib64/libQt6DBus.so.6
#7  0x00007f01c235662c in QObject::event(QEvent*) () from /lib64/libQt6Core.so.6
#8  0x00007f01c363d97f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#9  0x00007f01c22f9f38 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#10 0x00007f01c22fdd26 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt6Core.so.6
#11 0x00007f01c24c84d3 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#12 0x00007f01c30e0442 in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Gui.so.6
#13 0x00007f01c2307b03 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#14 0x00007f01c2303419 in QCoreApplication::exec() () from /lib64/libQt6Core.so.6
#15 0x000055a6dd8ddfb1 in main ()

Reported using DrKonqi
Comment 1 Vlad Zahorodnii 2025-06-16 12:26:23 UTC 
Did you install any custom extensions?
Comment 2 Vlad Zahorodnii 2025-06-16 12:27:50 UTC 

*** This bug has been marked as a duplicate of bug 504657 ***
Comment 3 snowsnooks 2025-06-16 17:48:29 UTC 
(In reply to Vlad Zahorodnii from comment #1)
> Did you install any custom extensions?

installed better-blur and then installed a catpuccin theme, but later decided not to use it.