Bug 474412

Summary: KWin crashed when pasting a screenshot captured by Spectacle into GitHub via Firefox Nightly Snap.
Product: [Plasma] kwin Reporter: Roke Julian Lockhart Beedell <4wy78uwh>
Component: generalAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: crash CC: xaver.hugl
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.27.7   
Target Milestone: ---   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: The generated KCrash report.

Description Roke Julian Lockhart Beedell 2023-09-11 15:07:38 UTC 
Application: kwin_x11 (5.27.7)

Qt Version: 5.15.10
Frameworks Version: 5.109.0
Operating System: Linux 6.4.12-1-default x86_64
Windowing System: X11
Distribution: "openSUSE Tumbleweed"
DrKonqi: 5.27.7 [CoredumpBackend]

-- Information about the crash:
KWin crashed when pasting a screenshot captured by Spectacle into https://github.com/openaudible/openaudible/issues/new via `snap install firefox --channel=latest/edge` (119.0a1). When I pasted it, a graphical artifact appeared - it appeared to be a very broken tile-like version of what was being outputted.

I didn't notice anything else occur - the compositor certainly didn't crash, for my windows remained without issue. The artifact was all. The image even pasted.

The crash does not seem to be reproducible.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault

           PID: 1736 (kwin_x11)
           UID: 1000 (RokeJulianLockhart)
           GID: 1000 (RokeJulianLockhart)
        Signal: 11 (SEGV)
     Timestamp: Mon 2023-09-11 15:57:30 BST (2min 16s ago)
  Command Line: /usr/bin/kwin_x11 --replace
    Executable: /usr/bin/kwin_x11
 Control Group: /user.slice/user-1000.slice/user@1000.service/session.slice/plasma-kwin_x11.service
          Unit: user@1000.service
     User Unit: plasma-kwin_x11.service
         Slice: user-1000.slice
     Owner UID: 1000 (RokeJulianLockhart)
       Boot ID: b08458adefd34380941da5bdd8a0d894
    Machine ID: a6375641691949a3923f47158f9e339f
      Hostname: localhost.localdomain
       Storage: /var/lib/systemd/coredump/core.kwin_x11.1000.b08458adefd34380941da5bdd8a0d894.1736.1694444250000000.zst (present)
  Size on Disk: 9.0M
       Message: Process 1736 (kwin_x11) of user 1000 dumped core.
                
                Stack trace of thread 1736:
                #0  0x00007fc63aa972c8 pthread_sigmask@GLIBC_2.2.5 (libc.so.6 + 0x972c8)
                #1  0x00007fc63aa3f3cd sigprocmask (libc.so.6 + 0x3f3cd)
                #2  0x00007fc63ddd58db _ZN6KCrash15setCrashHandlerEPFviE (libKF5Crash.so.5 + 0x58db)
                #3  0x00007fc63ddd7d93 _ZN6KCrash19defaultCrashHandlerEi (libKF5Crash.so.5 + 0x7d93)
                #4  0x00007fc63aa3f1b0 __restore_rt (libc.so.6 + 0x3f1b0)
                #5  0x00005645db77b176 n/a (kwin_x11 + 0xa2176)
                #6  0x00005645db77b478 n/a (kwin_x11 + 0xa2478)
                #7  0x00007fc63d7feb4a _ZN4KWin18EffectsHandlerImpl14prePaintWindowEPNS_12EffectWindowERNS_18WindowPrePaintDataENSt6chrono8durationIlSt5ratioILl1ELl1000EEEE (libkwin.so.5 + 0x1feb4a)
                #8  0x00007fc63d882124 _ZN4KWin14WorkspaceScene24preparePaintSimpleScreenEv (libkwin.so.5 + 0x282124)
                #9  0x00007fc63d884bf5 _ZN4KWin14WorkspaceScene8prePaintEPNS_13SceneDelegateE (libkwin.so.5 + 0x284bf5)
                #10 0x00007fc63d7c328f _ZN4KWin10Compositor12prePaintPassEPNS_11RenderLayerE (libkwin.so.5 + 0x1c328f)
                #11 0x00007fc63d7c768f _ZN4KWin10Compositor9compositeEPNS_10RenderLoopE (libkwin.so.5 + 0x1c768f)
                #12 0x00007fc63d7c80e2 _ZN4KWin13X11Compositor9compositeEPNS_10RenderLoopE (libkwin.so.5 + 0x1c80e2)
                #13 0x00007fc63bf25812 n/a (libQt5Core.so.5 + 0x325812)
                #14 0x00007fc63d77b1e2 _ZN4KWin10RenderLoop14frameRequestedEPS0_ (libkwin.so.5 + 0x17b1e2)
                #15 0x00007fc63d7cd9f3 _ZN4KWin17RenderLoopPrivate8dispatchEv (libkwin.so.5 + 0x1cd9f3)
                #16 0x00007fc63bf25812 n/a (libQt5Core.so.5 + 0x325812)
                #17 0x00007fc63bf295ea _ZN6QTimer7timeoutENS_14QPrivateSignalE (libQt5Core.so.5 + 0x3295ea)
                #18 0x00007fc63bf1922b _ZN7QObject5eventEP6QEvent (libQt5Core.so.5 + 0x31922b)
                #19 0x00007fc63b3a519e _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5 + 0x1a519e)
                #20 0x00007fc63beed568 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5 + 0x2ed568)
                #21 0x00007fc63bf45899 _ZN14QTimerInfoList14activateTimersEv (libQt5Core.so.5 + 0x345899)
                #22 0x00007fc63bf46144 n/a (libQt5Core.so.5 + 0x346144)
                #23 0x00007fc6397169d8 g_main_context_dispatch (libglib-2.0.so.0 + 0x5d9d8)
                #24 0x00007fc639716de8 n/a (libglib-2.0.so.0 + 0x5dde8)
                #25 0x00007fc639716e7c g_main_context_iteration (libglib-2.0.so.0 + 0x5de7c)
                #26 0x00007fc63bf464a6 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x3464a6)
                #27 0x00007fc63beebffb _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2ebffb)
                #28 0x00007fc63bef4490 _ZN16QCoreApplication4execEv (libQt5Core.so.5 + 0x2f4490)
                #29 0x00005645db71f4dd n/a (kwin_x11 + 0x464dd)
                #30 0x00007fc63aa281b0 __libc_start_call_main (libc.so.6 + 0x281b0)
                #31 0x00007fc63aa28279 __libc_start_main@@GLIBC_2.34 (libc.so.6 + 0x28279)
                #32 0x00005645db7209a5 n/a (kwin_x11 + 0x479a5)
                
                Stack trace of thread 1757:
                #0  0x00007fc63aa8c50e __futex_abstimed_wait_common (libc.so.6 + 0x8c50e)
                #1  0x00007fc63aa8f250 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8f250)
                #2  0x00007fc62e0c807b n/a (radeonsi_dri.so + 0xc807b)
                #3  0x00007fc62e111267 n/a (radeonsi_dri.so + 0x111267)
                #4  0x00007fc63aa8ff64 start_thread (libc.so.6 + 0x8ff64)
                #5  0x00007fc63ab1847c __clone3 (libc.so.6 + 0x11847c)
                
                Stack trace of thread 1765:
                #0  0x00007fc63aa8c50e __futex_abstimed_wait_common (libc.so.6 + 0x8c50e)
                #1  0x00007fc63aa8f250 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8f250)
                #2  0x00007fc62e0c807b n/a (radeonsi_dri.so + 0xc807b)
                #3  0x00007fc62e111267 n/a (radeonsi_dri.so + 0x111267)
                #4  0x00007fc63aa8ff64 start_thread (libc.so.6 + 0x8ff64)
                #5  0x00007fc63ab1847c __clone3 (libc.so.6 + 0x11847c)
                
                Stack trace of thread 1758:
                #0  0x00007fc63aa8c50e __futex_abstimed_wait_common (libc.so.6 + 0x8c50e)
                #1  0x00007fc63aa8f250 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8f250)
                #2  0x00007fc62e0c807b n/a (radeonsi_dri.so + 0xc807b)
                #3  0x00007fc62e111267 n/a (radeonsi_dri.so + 0x111267)
                #4  0x00007fc63aa8ff64 start_thread (libc.so.6 + 0x8ff64)
                #5  0x00007fc63ab1847c __clone3 (libc.so.6 + 0x11847c)
                
                Stack trace of thread 1747:
                #0  0x00007fc63ab09d2f __poll (libc.so.6 + 0x109d2f)
                #1  0x00007fc639716d5e n/a (libglib-2.0.so.0 + 0x5dd5e)
                #2  0x00007fc639716e7c g_main_context_iteration (libglib-2.0.so.0 + 0x5de7c)
                #3  0x00007fc63bf464be _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x3464be)
                #4  0x00007fc63beebffb _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2ebffb)
                #5  0x00007fc63bd02dce _ZN7QThread4execEv (libQt5Core.so.5 + 0x102dce)
                #6  0x00007fc63b186517 n/a (libQt5DBus.so.5 + 0x1a517)
                #7  0x00007fc63bd03ffd n/a (libQt5Core.so.5 + 0x103ffd)
                #8  0x00007fc63aa8ff64 start_thread (libc.so.6 + 0x8ff64)
                #9  0x00007fc63ab1847c __clone3 (libc.so.6 + 0x11847c)
                
                Stack trace of thread 1755:
                #0  0x00007fc63aa8c50e __futex_abstimed_wait_common (libc.so.6 + 0x8c50e)
                #1  0x00007fc63aa8f250 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8f250)
                #2  0x00007fc62e0c807b n/a (radeonsi_dri.so + 0xc807b)
                #3  0x00007fc62e111267 n/a (radeonsi_dri.so + 0x111267)
                #4  0x00007fc63aa8ff64 start_thread (libc.so.6 + 0x8ff64)
                #5  0x00007fc63ab1847c __clone3 (libc.so.6 + 0x11847c)
                
                Stack trace of thread 1756:
                #0  0x00007fc63aa8c50e __futex_abstimed_wait_common (libc.so.6 + 0x8c50e)
                #1  0x00007fc63aa8f250 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8f250)
                #2  0x00007fc62e0c807b n/a (radeonsi_dri.so + 0xc807b)
                #3  0x00007fc62e111267 n/a (radeonsi_dri.so + 0x111267)
                #4  0x00007fc63aa8ff64 start_thread (libc.so.6 + 0x8ff64)
                #5  0x00007fc63ab1847c __clone3 (libc.so.6 + 0x11847c)
                
                Stack trace of thread 1766:
                #0  0x00007fc63aa8c50e __futex_abstimed_wait_common (libc.so.6 + 0x8c50e)
                #1  0x00007fc63aa8f250 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8f250)
                #2  0x00007fc62e0c807b n/a (radeonsi_dri.so + 0xc807b)
                #3  0x00007fc62e111267 n/a (radeonsi_dri.so + 0x111267)
                #4  0x00007fc63aa8ff64 start_thread (libc.so.6 + 0x8ff64)
                #5  0x00007fc63ab1847c __clone3 (libc.so.6 + 0x11847c)
                
                Stack trace of thread 1802:
                #0  0x00007fc63aa8c50e __futex_abstimed_wait_common (libc.so.6 + 0x8c50e)
                #1  0x00007fc63aa8f250 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8f250)
                #2  0x00007fc62e0c807b n/a (radeonsi_dri.so + 0xc807b)
                #3  0x00007fc62e111267 n/a (radeonsi_dri.so + 0x111267)
                #4  0x00007fc63aa8ff64 start_thread (libc.so.6 + 0x8ff64)
                #5  0x00007fc63ab1847c __clone3 (libc.so.6 + 0x11847c)
                
                Stack trace of thread 4436:
                #0  0x00007fc63aa8c50e __futex_abstimed_wait_common (libc.so.6 + 0x8c50e)
                #1  0x00007fc63aa8f250 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8f250)
                #2  0x00007fc62e0c807b n/a (radeonsi_dri.so + 0xc807b)
                #3  0x00007fc62e111267 n/a (radeonsi_dri.so + 0x111267)
                #4  0x00007fc63aa8ff64 start_thread (libc.so.6 + 0x8ff64)
                #5  0x00007fc63ab1847c __clone3 (libc.so.6 + 0x11847c)
                
                Stack trace of thread 4437:
                #0  0x00007fc63aa8c50e __futex_abstimed_wait_common (libc.so.6 + 0x8c50e)
                #1  0x00007fc63aa8f250 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8f250)
                #2  0x00007fc62e0c807b n/a (radeonsi_dri.so + 0xc807b)
                #3  0x00007fc62e111267 n/a (radeonsi_dri.so + 0x111267)
                #4  0x00007fc63aa8ff64 start_thread (libc.so.6 + 0x8ff64)
                #5  0x00007fc63ab1847c __clone3 (libc.so.6 + 0x11847c)
                
                Stack trace of thread 1803:
                #0  0x00007fc63aa8c50e __futex_abstimed_wait_common (libc.so.6 + 0x8c50e)
                #1  0x00007fc63aa8f250 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8f250)
                #2  0x00007fc62e0c807b n/a (radeonsi_dri.so + 0xc807b)
                #3  0x00007fc62e111267 n/a (radeonsi_dri.so + 0x111267)
                #4  0x00007fc63aa8ff64 start_thread (libc.so.6 + 0x8ff64)
                #5  0x00007fc63ab1847c __clone3 (libc.so.6 + 0x11847c)
                
                Stack trace of thread 1791:
                #0  0x00007fc63ab09d2f __poll (libc.so.6 + 0x109d2f)
                #1  0x00007fc639716d5e n/a (libglib-2.0.so.0 + 0x5dd5e)
                #2  0x00007fc639716e7c g_main_context_iteration (libglib-2.0.so.0 + 0x5de7c)
                #3  0x00007fc63bf464a6 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x3464a6)
                #4  0x00007fc63beebffb _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2ebffb)
                #5  0x00007fc63bd02dce _ZN7QThread4execEv (libQt5Core.so.5 + 0x102dce)
                #6  0x00007fc63cd42665 n/a (libQt5Qml.so.5 + 0x342665)
                #7  0x00007fc63bd03ffd n/a (libQt5Core.so.5 + 0x103ffd)
                #8  0x00007fc63aa8ff64 start_thread (libc.so.6 + 0x8ff64)
                #9  0x00007fc63ab1847c __clone3 (libc.so.6 + 0x11847c)
                ELF object binary architecture: AMD x86-64

[New LWP 1736]
[New LWP 1757]
[New LWP 1765]
[New LWP 1758]
[New LWP 1747]
[New LWP 1755]
[New LWP 1756]
[New LWP 1766]
[New LWP 1802]
[New LWP 4436]
[New LWP 4437]
[New LWP 1803]
[New LWP 1791]

This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.opensuse.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.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/kwin_x11 --replace'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fc63aa972c8 in pthread_sigmask@GLIBC_2.2.5 () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7fc638655980 (LWP 1736))]
[Current thread is 1 (Thread 0x7fc638655980 (LWP 1736))]

Thread 13 (Thread 0x7fc60a3fe6c0 (LWP 1791)):
#0  0x00007fc63ab09d2f in poll () from /lib64/libc.so.6
#1  0x00007fc639716d5e in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007fc639716e7c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fc63bf464a6 in QEventDispatcherGlib::processEvents (this=0x7fc600000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#4  0x00007fc63beebffb in QEventLoop::exec (this=this@entry=0x7fc60a3fdbe0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007fc63bd02dce in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007fc63cd42665 in ?? () from /lib64/libQt5Qml.so.5
#7  0x00007fc63bd03ffd in operator() (__closure=<optimized out>) at thread/qthread_unix.cpp:350
#8  (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at thread/qthread_unix.cpp:287
#9  QThreadPrivate::start (arg=0x5645dd2fa800) at thread/qthread_unix.cpp:310
#10 0x00007fc63aa8ff64 in start_thread () from /lib64/libc.so.6
#11 0x00007fc63ab1847c in clone3 () from /lib64/libc.so.6

Thread 12 (Thread 0x7fc5f3fff6c0 (LWP 1803)):
#0  0x00007fc63aa8c50e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc63aa8f250 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc62e0c807b in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc62e111267 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fc63aa8ff64 in start_thread () from /lib64/libc.so.6
#5  0x00007fc63ab1847c in clone3 () from /lib64/libc.so.6

Thread 11 (Thread 0x7fc5c95fa6c0 (LWP 4437)):
#0  0x00007fc63aa8c50e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc63aa8f250 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc62e0c807b in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc62e111267 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fc63aa8ff64 in start_thread () from /lib64/libc.so.6
#5  0x00007fc63ab1847c in clone3 () from /lib64/libc.so.6

Thread 10 (Thread 0x7fc5c9dfb6c0 (LWP 4436)):
#0  0x00007fc63aa8c50e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc63aa8f250 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc62e0c807b in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc62e111267 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fc63aa8ff64 in start_thread () from /lib64/libc.so.6
#5  0x00007fc63ab1847c in clone3 () from /lib64/libc.so.6

Thread 9 (Thread 0x7fc6089bc6c0 (LWP 1802)):
#0  0x00007fc63aa8c50e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc63aa8f250 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc62e0c807b in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc62e111267 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fc63aa8ff64 in start_thread () from /lib64/libc.so.6
#5  0x00007fc63ab1847c in clone3 () from /lib64/libc.so.6

Thread 8 (Thread 0x7fc60bfff6c0 (LWP 1766)):
#0  0x00007fc63aa8c50e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc63aa8f250 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc62e0c807b in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc62e111267 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fc63aa8ff64 in start_thread () from /lib64/libc.so.6
#5  0x00007fc63ab1847c in clone3 () from /lib64/libc.so.6

Thread 7 (Thread 0x7fc62debe6c0 (LWP 1756)):
#0  0x00007fc63aa8c50e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc63aa8f250 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc62e0c807b in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc62e111267 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fc63aa8ff64 in start_thread () from /lib64/libc.so.6
#5  0x00007fc63ab1847c in clone3 () from /lib64/libc.so.6

Thread 6 (Thread 0x7fc6349426c0 (LWP 1755)):
#0  0x00007fc63aa8c50e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc63aa8f250 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc62e0c807b in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc62e111267 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fc63aa8ff64 in start_thread () from /lib64/libc.so.6
#5  0x00007fc63ab1847c in clone3 () from /lib64/libc.so.6

Thread 5 (Thread 0x7fc6361ff6c0 (LWP 1747)):
#0  0x00007fc63ab09d2f in poll () from /lib64/libc.so.6
#1  0x00007fc639716d5e in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007fc639716e7c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fc63bf464be in QEventDispatcherGlib::processEvents (this=0x7fc630000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc63beebffb in QEventLoop::exec (this=this@entry=0x7fc6361febd0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007fc63bd02dce in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007fc63b186517 in ?? () from /lib64/libQt5DBus.so.5
#7  0x00007fc63bd03ffd in operator() (__closure=<optimized out>) at thread/qthread_unix.cpp:350
#8  (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at thread/qthread_unix.cpp:287
#9  QThreadPrivate::start (arg=0x7fc63b1ff060) at thread/qthread_unix.cpp:310
#10 0x00007fc63aa8ff64 in start_thread () from /lib64/libc.so.6
#11 0x00007fc63ab1847c in clone3 () from /lib64/libc.so.6

Thread 4 (Thread 0x7fc62cebc6c0 (LWP 1758)):
#0  0x00007fc63aa8c50e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc63aa8f250 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc62e0c807b in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc62e111267 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fc63aa8ff64 in start_thread () from /lib64/libc.so.6
#5  0x00007fc63ab1847c in clone3 () from /lib64/libc.so.6

Thread 3 (Thread 0x7fc620bff6c0 (LWP 1765)):
#0  0x00007fc63aa8c50e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc63aa8f250 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc62e0c807b in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc62e111267 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fc63aa8ff64 in start_thread () from /lib64/libc.so.6
#5  0x00007fc63ab1847c in clone3 () from /lib64/libc.so.6

Thread 2 (Thread 0x7fc62d6bd6c0 (LWP 1757)):
#0  0x00007fc63aa8c50e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007fc63aa8f250 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007fc62e0c807b in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc62e111267 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fc63aa8ff64 in start_thread () from /lib64/libc.so.6
#5  0x00007fc63ab1847c in clone3 () from /lib64/libc.so.6

Thread 1 (Thread 0x7fc638655980 (LWP 1736)):
[KCrash Handler]
#5  0x00005645db77b176 in KWin::BlurEffect::blurRegion (this=this@entry=0x5645dd988f40, w=w@entry=0x5645ddef4f30) at /usr/src/debug/kwin-5.27.7/src/effects/blur/blur.cpp:473
#6  0x00005645db77b478 in KWin::BlurEffect::prePaintWindow (presentTime=..., data=..., w=<optimized out>, this=0x5645dd988f40) at /usr/src/debug/kwin-5.27.7/src/effects/blur/blur.cpp:571
#7  KWin::BlurEffect::prePaintWindow (this=0x5645dd988f40, w=<optimized out>, data=..., presentTime=...) at /usr/src/debug/kwin-5.27.7/src/effects/blur/blur.cpp:540
#8  0x00007fc63d7feb4a in KWin::EffectsHandlerImpl::prePaintWindow (this=0x5645dd1d88d0, w=<optimized out>, data=..., presentTime=...) at /usr/src/debug/kwin-5.27.7/src/effects.cpp:415
#9  0x00007fc63d882124 in KWin::WorkspaceScene::preparePaintSimpleScreen (this=0x5645dd0fc870) at /usr/src/debug/kwin-5.27.7/src/scene/workspacescene.cpp:319
#10 0x00007fc63d884bf5 in KWin::WorkspaceScene::prePaint (this=0x5645dd0fc870, delegate=<optimized out>) at /usr/src/debug/kwin-5.27.7/src/scene/workspacescene.cpp:231
#11 0x00007fc63d7c328f in KWin::Compositor::prePaintPass (this=this@entry=0x5645dd28a430, layer=layer@entry=0x5645dd1bcf70) at /usr/src/debug/kwin-5.27.7/src/composite.cpp:714
#12 0x00007fc63d7c768f in KWin::Compositor::composite (this=0x5645dd28a430, renderLoop=0x5645dd005360) at /usr/src/debug/kwin-5.27.7/src/composite.cpp:657
#13 0x00007fc63d7c80e2 in KWin::X11Compositor::composite (this=0x5645dd28a430, renderLoop=<optimized out>) at /usr/src/debug/kwin-5.27.7/src/composite.cpp:961
#14 0x00007fc63bf25812 in QtPrivate::QSlotObjectBase::call (a=0x7ffd7a43b260, r=0x5645dd28a430, this=0x5645dd1d7cc0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#15 doActivate<false> (sender=0x5645dd005360, signal_index=5, argv=0x7ffd7a43b260) at kernel/qobject.cpp:3925
#16 0x00007fc63bf1e47f in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fc63dbc3100, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7ffd7a43b260) at kernel/qobject.cpp:3985
#17 0x00007fc63d77b1e2 in KWin::RenderLoop::frameRequested (this=<optimized out>, _t1=<optimized out>) at /usr/src/debug/kwin-5.27.7/build/src/kwin_autogen/TAC5DWH4SE/moc_renderloop.cpp:206
#18 0x00007fc63d7cd9f3 in KWin::RenderLoopPrivate::dispatch (this=0x5645dd0053e0) at /usr/src/debug/kwin-5.27.7/src/core/renderloop.cpp:157
#19 0x00007fc63bf25812 in QtPrivate::QSlotObjectBase::call (a=0x7ffd7a43b380, r=0x5645dd005360, this=0x5645dd0054e0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#20 doActivate<false> (sender=0x5645dd0053f8, signal_index=3, argv=0x7ffd7a43b380) at kernel/qobject.cpp:3925
#21 0x00007fc63bf1e47f in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fc63c1c79a0, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd7a43b380) at kernel/qobject.cpp:3985
#22 0x00007fc63bf295ea in QTimer::timeout (this=<optimized out>, _t1=...) at .moc/moc_qtimer.cpp:205
#23 0x00007fc63bf1922b in QObject::event (this=0x5645dd0053f8, e=0x7ffd7a43b4d0) at kernel/qobject.cpp:1369
#24 0x00007fc63b3a519e in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5645dd0053f8, e=0x7ffd7a43b4d0) at kernel/qapplication.cpp:3640
#25 0x00007fc63beed568 in QCoreApplication::notifyInternal2 (receiver=0x5645dd0053f8, event=0x7ffd7a43b4d0) at kernel/qcoreapplication.cpp:1064
#26 0x00007fc63beed72e in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>) at kernel/qcoreapplication.cpp:1462
#27 0x00007fc63bf45899 in QTimerInfoList::activateTimers (this=0x5645dcd8d010) at kernel/qtimerinfo_unix.cpp:643
#28 0x00007fc63bf46144 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:183
#29 0x00007fc6397169d8 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#30 0x00007fc639716de8 in ?? () from /lib64/libglib-2.0.so.0
#31 0x00007fc639716e7c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#32 0x00007fc63bf464a6 in QEventDispatcherGlib::processEvents (this=0x5645dcd8f2a0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#33 0x00007fc63beebffb in QEventLoop::exec (this=this@entry=0x7ffd7a43b710, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#34 0x00007fc63bef4490 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#35 0x00005645db71f4dd in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kwin-5.27.7/src/main_x11.cpp:447

Reported using DrKonqi
Comment 1 Roke Julian Lockhart Beedell 2023-09-11 15:12:41 UTC 
Created attachment 161560 [details]
The generated KCrash report.

In case it's useful.
Comment 2 Zamundaaa 2023-09-11 15:33:52 UTC 

*** This bug has been marked as a duplicate of bug 437925 ***