Bug 486969

Summary: kwin segmentation fault (Radeon GPU related)
Product: [Plasma] kwin Reporter: d7ghrrkcz
Component: generic-crashAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED FIXED    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version First Reported In: 5.27.5   
Target Milestone: ---   
Platform: Debian stable   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description d7ghrrkcz 2024-05-13 15:10:17 UTC
Application: kwin_x11 (5.27.5)

Qt Version: 5.15.8
Frameworks Version: 5.103.0
Operating System: Linux 6.1.0-21-amd64 x86_64
Windowing System: X11
Distribution: Debian GNU/Linux 12 (bookworm)
DrKonqi: 5.27.5 [CoredumpBackend]

-- Information about the crash:
Kwin crashed today when I was away from the computer and both screens were sleeping.
When I come back, both screens were black, with only mouse cursor moving, no desktop content.
I found a related crashes in Linux kernel when this happened, will attach them separately.

The reporter is unsure if this crash is reproducible.

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

           PID: 6314 (kwin_x11)
           UID: 1000 (pioruns)
           GID: 1000 (pioruns)
        Signal: 11 (SEGV)
     Timestamp: Mon 2024-05-13 16:06:44 BST (37s 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 (pioruns)
       Boot ID: 8f1b3b8c52e24c17a145534589dace84
    Machine ID: 01568f2c8e7d4695b16a1f32deab7e38
      Hostname: ryzen
       Storage: /var/lib/systemd/coredump/core.kwin_x11.1000.8f1b3b8c52e24c17a145534589dace84.6314.1715612804000000.zst (present)
  Size on Disk: 13.9M
       Message: Process 6314 (kwin_x11) of user 1000 dumped core.
                
                Module libsystemd.so.0 from deb systemd-252.22-1~deb12u1.amd64
                Module libudev.so.1 from deb systemd-252.22-1~deb12u1.amd64
                Stack trace of thread 6314:
                #0  0x00007f58548a9e2c __pthread_kill_implementation (libc.so.6 + 0x8ae2c)
                #1  0x00007f585485afb2 __GI_raise (libc.so.6 + 0x3bfb2)
                #2  0x00007f5857ca4b46 _ZN6KCrash19defaultCrashHandlerEi (libKF5Crash.so.5 + 0x5b46)
                #3  0x00007f585485b050 __restore_rt (libc.so.6 + 0x3c050)
                #4  0x00007f585762fcdf _ZN4KWin9Workspace14workspaceEventEP19xcb_generic_event_t (libkwin.so.5 + 0x22fcdf)
                #5  0x00007f58558aec7f _ZN24QAbstractEventDispatcher17filterNativeEventERK10QByteArrayPvPl (libQt5Core.so.5 + 0x2aec7f)
                #6  0x00007f58500d440f _ZN14QXcbConnection14handleXcbEventEP19xcb_generic_event_t (libQt5XcbQpa.so.5 + 0x4640f)
                #7  0x00007f58500d5ab6 _ZN14QXcbConnection16processXcbEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5XcbQpa.so.5 + 0x47ab6)
                #8  0x00007f58500fbec3 xcbSourceDispatch (libQt5XcbQpa.so.5 + 0x6dec3)
                #9  0x00007f58536627a9 g_main_context_dispatch (libglib-2.0.so.0 + 0x547a9)
                #10 0x00007f5853662a38 n/a (libglib-2.0.so.0 + 0x54a38)
                #11 0x00007f5853662acc g_main_context_iteration (libglib-2.0.so.0 + 0x54acc)
                #12 0x00007f5855909836 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x309836)
                #13 0x00007f58558b017b _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2b017b)
                #14 0x00007f58558b82d6 _ZN16QCoreApplication4execEv (libQt5Core.so.5 + 0x2b82d6)
                #15 0x00005593da20d2d1 n/a (kwin_x11 + 0x432d1)
                #16 0x00007f585484624a __libc_start_call_main (libc.so.6 + 0x2724a)
                #17 0x00007f5854846305 __libc_start_main_impl (libc.so.6 + 0x27305)
                #18 0x00005593da20e7b1 n/a (kwin_x11 + 0x447b1)
                
                Stack trace of thread 6327:
                #0  0x00007f58548a4e96 __futex_abstimed_wait_common64 (libc.so.6 + 0x85e96)
                #1  0x00007f58548a7558 __pthread_cond_wait_common (libc.so.6 + 0x88558)
                #2  0x00007f584c90c059 cnd_wait (radeonsi_dri.so + 0x10c059)
                #3  0x00007f584c8be17b util_queue_thread_func (radeonsi_dri.so + 0xbe17b)
                #4  0x00007f584c90bf97 impl_thrd_routine (radeonsi_dri.so + 0x10bf97)
                #5  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #6  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 6357:
                #0  0x00007f58549171dc __GI___libc_read (libc.so.6 + 0xf81dc)
                #1  0x00007f58536b1c9f n/a (libglib-2.0.so.0 + 0xa3c9f)
                #2  0x00007f58536624c5 g_main_context_check (libglib-2.0.so.0 + 0x544c5)
                #3  0x00007f5853662958 n/a (libglib-2.0.so.0 + 0x54958)
                #4  0x00007f5853662acc g_main_context_iteration (libglib-2.0.so.0 + 0x54acc)
                #5  0x00007f585590984e _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x30984e)
                #6  0x00007f58558b017b _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2b017b)
                #7  0x00007f58556cab87 _ZN7QThread4execEv (libQt5Core.so.5 + 0xcab87)
                #8  0x00007f58562f2487 _ZN22QDBusConnectionManager3runEv (libQt5DBus.so.5 + 0x17487)
                #9  0x00007f58556cbd43 _ZN14QThreadPrivate5startEPv (libQt5Core.so.5 + 0xcbd43)
                #10 0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #11 0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 6342:
                #0  0x00007f58548a4e96 __futex_abstimed_wait_common64 (libc.so.6 + 0x85e96)
                #1  0x00007f58548a7558 __pthread_cond_wait_common (libc.so.6 + 0x88558)
                #2  0x00007f584c90c059 cnd_wait (radeonsi_dri.so + 0x10c059)
                #3  0x00007f584c8be17b util_queue_thread_func (radeonsi_dri.so + 0xbe17b)
                #4  0x00007f584c90bf97 impl_thrd_routine (radeonsi_dri.so + 0x10bf97)
                #5  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #6  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 6344:
                #0  0x00007f58548a4e96 __futex_abstimed_wait_common64 (libc.so.6 + 0x85e96)
                #1  0x00007f58548a7558 __pthread_cond_wait_common (libc.so.6 + 0x88558)
                #2  0x00007f584c90c059 cnd_wait (radeonsi_dri.so + 0x10c059)
                #3  0x00007f584c8be17b util_queue_thread_func (radeonsi_dri.so + 0xbe17b)
                #4  0x00007f584c90bf97 impl_thrd_routine (radeonsi_dri.so + 0x10bf97)
                #5  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #6  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 6597:
                #0  0x00007f58548a4e96 __futex_abstimed_wait_common64 (libc.so.6 + 0x85e96)
                #1  0x00007f58548a7558 __pthread_cond_wait_common (libc.so.6 + 0x88558)
                #2  0x00007f584c90c059 cnd_wait (radeonsi_dri.so + 0x10c059)
                #3  0x00007f584c8be17b util_queue_thread_func (radeonsi_dri.so + 0xbe17b)
                #4  0x00007f584c90bf97 impl_thrd_routine (radeonsi_dri.so + 0x10bf97)
                #5  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #6  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 6596:
                #0  0x00007f58548a4e96 __futex_abstimed_wait_common64 (libc.so.6 + 0x85e96)
                #1  0x00007f58548a7558 __pthread_cond_wait_common (libc.so.6 + 0x88558)
                #2  0x00007f584c90c059 cnd_wait (radeonsi_dri.so + 0x10c059)
                #3  0x00007f584c8be17b util_queue_thread_func (radeonsi_dri.so + 0xbe17b)
                #4  0x00007f584c90bf97 impl_thrd_routine (radeonsi_dri.so + 0x10bf97)
                #5  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #6  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 6595:
                #0  0x00007f58548a4e96 __futex_abstimed_wait_common64 (libc.so.6 + 0x85e96)
                #1  0x00007f58548a7558 __pthread_cond_wait_common (libc.so.6 + 0x88558)
                #2  0x00007f584c90c059 cnd_wait (radeonsi_dri.so + 0x10c059)
                #3  0x00007f584c8be17b util_queue_thread_func (radeonsi_dri.so + 0xbe17b)
                #4  0x00007f584c90bf97 impl_thrd_routine (radeonsi_dri.so + 0x10bf97)
                #5  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #6  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 1334868:
                #0  0x00007f58548a4e96 __futex_abstimed_wait_common64 (libc.so.6 + 0x85e96)
                #1  0x00007f58548a7558 __pthread_cond_wait_common (libc.so.6 + 0x88558)
                #2  0x00007f584c90c059 cnd_wait (radeonsi_dri.so + 0x10c059)
                #3  0x00007f584c8be17b util_queue_thread_func (radeonsi_dri.so + 0xbe17b)
                #4  0x00007f584c90bf97 impl_thrd_routine (radeonsi_dri.so + 0x10bf97)
                #5  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #6  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 2243880:
                #0  0x00007f58548a4e96 __futex_abstimed_wait_common64 (libc.so.6 + 0x85e96)
                #1  0x00007f58548a7558 __pthread_cond_wait_common (libc.so.6 + 0x88558)
                #2  0x00007f584c90c059 cnd_wait (radeonsi_dri.so + 0x10c059)
                #3  0x00007f584c8be17b util_queue_thread_func (radeonsi_dri.so + 0xbe17b)
                #4  0x00007f584c90bf97 impl_thrd_routine (radeonsi_dri.so + 0x10bf97)
                #5  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #6  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 6355:
                #0  0x00007f58548a4e96 __futex_abstimed_wait_common64 (libc.so.6 + 0x85e96)
                #1  0x00007f58548a7558 __pthread_cond_wait_common (libc.so.6 + 0x88558)
                #2  0x00007f584c90c059 cnd_wait (radeonsi_dri.so + 0x10c059)
                #3  0x00007f584c8be17b util_queue_thread_func (radeonsi_dri.so + 0xbe17b)
                #4  0x00007f584c90bf97 impl_thrd_routine (radeonsi_dri.so + 0x10bf97)
                #5  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #6  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 6346:
                #0  0x00007f58548a4e96 __futex_abstimed_wait_common64 (libc.so.6 + 0x85e96)
                #1  0x00007f58548a7558 __pthread_cond_wait_common (libc.so.6 + 0x88558)
                #2  0x00007f584c90c059 cnd_wait (radeonsi_dri.so + 0x10c059)
                #3  0x00007f584c8be17b util_queue_thread_func (radeonsi_dri.so + 0xbe17b)
                #4  0x00007f584c90bf97 impl_thrd_routine (radeonsi_dri.so + 0x10bf97)
                #5  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #6  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 2243881:
                #0  0x00007f58548a4e96 __futex_abstimed_wait_common64 (libc.so.6 + 0x85e96)
                #1  0x00007f58548a7558 __pthread_cond_wait_common (libc.so.6 + 0x88558)
                #2  0x00007f58556d1a2b _ZN21QWaitConditionPrivate4waitE14QDeadlineTimer (libQt5Core.so.5 + 0xd1a2b)
                #3  0x00007f5857008085 _ZN25QSGRenderThreadEventQueue9takeEventEb (libQt5Quick.so.5 + 0x208085)
                #4  0x00007f585700a4b1 _ZN15QSGRenderThread3runEv (libQt5Quick.so.5 + 0x20a4b1)
                #5  0x00007f58556cbd43 _ZN14QThreadPrivate5startEPv (libQt5Core.so.5 + 0xcbd43)
                #6  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #7  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 6409:
                #0  0x00007f585491b15f __GI___poll (libc.so.6 + 0xfc15f)
                #1  0x00007f58536629ae n/a (libglib-2.0.so.0 + 0x549ae)
                #2  0x00007f5853662acc g_main_context_iteration (libglib-2.0.so.0 + 0x54acc)
                #3  0x00007f5855909836 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x309836)
                #4  0x00007f58558b017b _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2b017b)
                #5  0x00007f58556cab87 _ZN7QThread4execEv (libQt5Core.so.5 + 0xcab87)
                #6  0x00007f5856b28555 _ZN17QQmlThreadPrivate3runEv (libQt5Qml.so.5 + 0x328555)
                #7  0x00007f58556cbd43 _ZN14QThreadPrivate5startEPv (libQt5Core.so.5 + 0xcbd43)
                #8  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #9  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 325046:
                #0  0x00007f58548a4e96 __futex_abstimed_wait_common64 (libc.so.6 + 0x85e96)
                #1  0x00007f58548a7558 __pthread_cond_wait_common (libc.so.6 + 0x88558)
                #2  0x00007f584c90c059 cnd_wait (radeonsi_dri.so + 0x10c059)
                #3  0x00007f584c8be17b util_queue_thread_func (radeonsi_dri.so + 0xbe17b)
                #4  0x00007f584c90bf97 impl_thrd_routine (radeonsi_dri.so + 0x10bf97)
                #5  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #6  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 1334885:
                #0  0x00007f58548a4e96 __futex_abstimed_wait_common64 (libc.so.6 + 0x85e96)
                #1  0x00007f58548a7558 __pthread_cond_wait_common (libc.so.6 + 0x88558)
                #2  0x00007f58556d1a2b _ZN21QWaitConditionPrivate4waitE14QDeadlineTimer (libQt5Core.so.5 + 0xd1a2b)
                #3  0x00007f5857008085 _ZN25QSGRenderThreadEventQueue9takeEventEb (libQt5Quick.so.5 + 0x208085)
                #4  0x00007f585700a4b1 _ZN15QSGRenderThread3runEv (libQt5Quick.so.5 + 0x20a4b1)
                #5  0x00007f58556cbd43 _ZN14QThreadPrivate5startEPv (libQt5Core.so.5 + 0xcbd43)
                #6  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #7  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                
                Stack trace of thread 6423:
                #0  0x00007f58548a4e96 __futex_abstimed_wait_common64 (libc.so.6 + 0x85e96)
                #1  0x00007f58548a7558 __pthread_cond_wait_common (libc.so.6 + 0x88558)
                #2  0x00007f584c90c059 cnd_wait (radeonsi_dri.so + 0x10c059)
                #3  0x00007f584c8be17b util_queue_thread_func (radeonsi_dri.so + 0xbe17b)
                #4  0x00007f584c90bf97 impl_thrd_routine (radeonsi_dri.so + 0x10bf97)
                #5  0x00007f58548a8134 start_thread (libc.so.6 + 0x89134)
                #6  0x00007f58549287dc __clone3 (libc.so.6 + 0x1097dc)
                ELF object binary architecture: AMD x86-64

[New LWP 6314]
[New LWP 6327]
[New LWP 6357]
[New LWP 6342]
[New LWP 6344]
[New LWP 6597]
[New LWP 6596]
[New LWP 6595]
[New LWP 1334868]
[New LWP 2243880]
[New LWP 6355]
[New LWP 6346]
[New LWP 2243881]
[New LWP 6409]
[New LWP 325046]
[New LWP 1334885]
[New LWP 6423]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/bin/kwin_x11 --replace'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at ./nptl/pthread_kill.c:44
[Current thread is 1 (Thread 0x7f58505f19c0 (LWP 6314))]
[Current thread is 1 (Thread 0x7f58505f19c0 (LWP 6314))]

Thread 17 (Thread 0x7f58253bc6c0 (LWP 6423)):
warning: Section `.reg-xstate/6423' in core file too small.
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f5847f96584) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7f5847f96584, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at ./nptl/futex-internal.c:87
#2  0x00007f58548a4efb in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7f5847f96584, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f58548a7558 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5847f96530, cond=0x7f5847f96558) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7f5847f96558, mutex=0x7f5847f96530) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f584c90c059 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f584c8be17b in util_queue_thread_func (input=input@entry=0x5593da806e00) at ../src/util/u_queue.c:290
#7  0x00007f584c90bf97 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 16 (Thread 0x7f5825bbd6c0 (LWP 1334885)):
warning: Section `.reg-xstate/1334885' in core file too small.
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5593db8d0030) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x5593db8d0030, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at ./nptl/futex-internal.c:87
#2  0x00007f58548a4efb in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5593db8d0030, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f58548a7558 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5593db8cffe0, cond=0x5593db8d0008) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5593db8d0008, mutex=0x5593db8cffe0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f58556d1a2b in QWaitConditionPrivate::wait (deadline=..., this=0x5593db8cffe0) at thread/qwaitcondition_unix.cpp:146
#6  QWaitCondition::wait (this=this@entry=0x5593db739ba8, mutex=mutex@entry=0x5593db739ba0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#7  0x00007f5857008085 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x5593db739b98) at scenegraph/qsgthreadedrenderloop.cpp:257
#8  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x5593db739b00) at scenegraph/qsgthreadedrenderloop.cpp:935
#9  0x00007f585700a4b1 in QSGRenderThread::run (this=0x5593db739b00) at scenegraph/qsgthreadedrenderloop.cpp:1052
#10 0x00007f58556cbd43 in QThreadPrivate::start (arg=0x5593db739b00) at thread/qthread_unix.cpp:331
#11 0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#12 0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 15 (Thread 0x7f57ecff96c0 (LWP 325046)):
warning: Section `.reg-xstate/325046' in core file too small.
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f57fb46f580) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7f57fb46f580, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at ./nptl/futex-internal.c:87
#2  0x00007f58548a4efb in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7f57fb46f580, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f58548a7558 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f57fb46f530, cond=0x7f57fb46f558) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7f57fb46f558, mutex=0x7f57fb46f530) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f584c90c059 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f584c8be17b in util_queue_thread_func (input=input@entry=0x5593db27e790) at ../src/util/u_queue.c:290
#7  0x00007f584c90bf97 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 14 (Thread 0x7f5826bfe6c0 (LWP 6409)):
warning: Section `.reg-xstate/6409' in core file too small.
#0  0x00007f585491b15f in __GI___poll (fds=0x7f58140029e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f58536629ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5853662acc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5855909836 in QEventDispatcherGlib::processEvents (this=0x7f5814000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#4  0x00007f58558b017b in QEventLoop::exec (this=this@entry=0x7f5826bfdba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007f58556cab87 in QThread::exec (this=this@entry=0x5593da8d0eb0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f5856b28555 in QQmlThreadPrivate::run (this=0x5593da8d0eb0) at qml/ftw/qqmlthread.cpp:155
#7  0x00007f58556cbd43 in QThreadPrivate::start (arg=0x5593da8d0eb0) at thread/qthread_unix.cpp:331
#8  0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 13 (Thread 0x7f57c7fff6c0 (LWP 2243881)):
warning: Section `.reg-xstate/2243881' in core file too small.
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5593dc066840) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x5593dc066840, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at ./nptl/futex-internal.c:87
#2  0x00007f58548a4efb in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5593dc066840, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f58548a7558 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5593dc0667f0, cond=0x5593dc066818) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5593dc066818, mutex=0x5593dc0667f0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f58556d1a2b in QWaitConditionPrivate::wait (deadline=..., this=0x5593dc0667f0) at thread/qwaitcondition_unix.cpp:146
#6  QWaitCondition::wait (this=this@entry=0x5593dc0fcf28, mutex=mutex@entry=0x5593dc0fcf20, deadline=...) at thread/qwaitcondition_unix.cpp:225
#7  0x00007f5857008085 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x5593dc0fcf18) at scenegraph/qsgthreadedrenderloop.cpp:257
#8  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x5593dc0fce80) at scenegraph/qsgthreadedrenderloop.cpp:935
#9  0x00007f585700a4b1 in QSGRenderThread::run (this=0x5593dc0fce80) at scenegraph/qsgthreadedrenderloop.cpp:1052
#10 0x00007f58556cbd43 in QThreadPrivate::start (arg=0x5593dc0fce80) at thread/qthread_unix.cpp:331
#11 0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#12 0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 12 (Thread 0x7f583ddfc6c0 (LWP 6346)):
warning: Section `.reg-xstate/6346' in core file too small.
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5593da578590) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x5593da578590, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at ./nptl/futex-internal.c:87
#2  0x00007f58548a4efb in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5593da578590, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f58548a7558 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5593da578540, cond=0x5593da578568) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5593da578568, mutex=0x5593da578540) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f584c90c059 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f584c8be17b in util_queue_thread_func (input=input@entry=0x5593da5e6460) at ../src/util/u_queue.c:290
#7  0x00007f584c90bf97 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 11 (Thread 0x7f583d5fb6c0 (LWP 6355)):
warning: Section `.reg-xstate/6355' in core file too small.
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f584ea1d580) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7f584ea1d580, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at ./nptl/futex-internal.c:87
#2  0x00007f58548a4efb in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7f584ea1d580, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f58548a7558 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f584ea1d530, cond=0x7f584ea1d558) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7f584ea1d558, mutex=0x7f584ea1d530) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f584c90c059 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f584c8be17b in util_queue_thread_func (input=input@entry=0x5593da4af5e0) at ../src/util/u_queue.c:290
#7  0x00007f584c90bf97 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 10 (Thread 0x7f57effff6c0 (LWP 2243880)):
warning: Section `.reg-xstate/2243880' in core file too small.
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f57f808c580) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7f57f808c580, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at ./nptl/futex-internal.c:87
#2  0x00007f58548a4efb in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7f57f808c580, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f58548a7558 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f57f808c530, cond=0x7f57f808c558) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7f57f808c558, mutex=0x7f57f808c530) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f584c90c059 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f584c8be17b in util_queue_thread_func (input=input@entry=0x5593dc0280e0) at ../src/util/u_queue.c:290
#7  0x00007f584c90bf97 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 9 (Thread 0x7f58273ff6c0 (LWP 1334868)):
warning: Section `.reg-xstate/1334868' in core file too small.
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f57f80c1580) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7f57f80c1580, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at ./nptl/futex-internal.c:87
#2  0x00007f58548a4efb in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7f57f80c1580, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f58548a7558 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f57f80c1530, cond=0x7f57f80c1558) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7f57f80c1558, mutex=0x7f57f80c1530) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f584c90c059 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f584c8be17b in util_queue_thread_func (input=input@entry=0x5593db7916e0) at ../src/util/u_queue.c:290
#7  0x00007f584c90bf97 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 8 (Thread 0x7f5824bbb6c0 (LWP 6595)):
warning: Section `.reg-xstate/6595' in core file too small.
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5593da578024) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x5593da578024, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at ./nptl/futex-internal.c:87
#2  0x00007f58548a4efb in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5593da578024, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f58548a7558 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5593da577fd0, cond=0x5593da577ff8) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5593da577ff8, mutex=0x5593da577fd0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f584c90c059 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f584c8be17b in util_queue_thread_func (input=input@entry=0x5593db227500) at ../src/util/u_queue.c:290
#7  0x00007f584c90bf97 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 7 (Thread 0x7f580bfff6c0 (LWP 6596)):
warning: Section `.reg-xstate/6596' in core file too small.
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5593da578020) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x5593da578020, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at ./nptl/futex-internal.c:87
#2  0x00007f58548a4efb in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5593da578020, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f58548a7558 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5593da577fd0, cond=0x5593da577ff8) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5593da577ff8, mutex=0x5593da577fd0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f584c90c059 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f584c8be17b in util_queue_thread_func (input=input@entry=0x5593db269f80) at ../src/util/u_queue.c:290
#7  0x00007f584c90bf97 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 6 (Thread 0x7f580b7fe6c0 (LWP 6597)):
warning: Section `.reg-xstate/6597' in core file too small.
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5593da578024) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x5593da578024, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at ./nptl/futex-internal.c:87
#2  0x00007f58548a4efb in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5593da578024, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f58548a7558 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5593da577fd0, cond=0x5593da577ff8) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5593da577ff8, mutex=0x5593da577fd0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f584c90c059 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f584c8be17b in util_queue_thread_func (input=input@entry=0x5593db2ac900) at ../src/util/u_queue.c:290
#7  0x00007f584c90bf97 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 5 (Thread 0x7f583e5fd6c0 (LWP 6344)):
warning: Section `.reg-xstate/6344' in core file too small.
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5593da578020) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x5593da578020, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at ./nptl/futex-internal.c:87
#2  0x00007f58548a4efb in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5593da578020, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f58548a7558 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5593da577fd0, cond=0x5593da577ff8) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5593da577ff8, mutex=0x5593da577fd0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f584c90c059 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f584c8be17b in util_queue_thread_func (input=input@entry=0x5593da5e6170) at ../src/util/u_queue.c:290
#7  0x00007f584c90bf97 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 4 (Thread 0x7f583edfe6c0 (LWP 6342)):
warning: Section `.reg-xstate/6342' in core file too small.
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5593da5e5ed8) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x5593da5e5ed8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at ./nptl/futex-internal.c:87
#2  0x00007f58548a4efb in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5593da5e5ed8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f58548a7558 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5593da5e5e88, cond=0x5593da5e5eb0) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5593da5e5eb0, mutex=0x5593da5e5e88) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f584c90c059 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f584c8be17b in util_queue_thread_func (input=input@entry=0x5593da5e6e40) at ../src/util/u_queue.c:290
#7  0x00007f584c90bf97 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 3 (Thread 0x7f583cdfa6c0 (LWP 6357)):
warning: Section `.reg-xstate/6357' in core file too small.
#0  __GI___libc_read (nbytes=16, buf=0x7f583cdf9970, fd=12) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=12, buf=0x7f583cdf9970, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f58536b1c9f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f58536624c5 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5853662958 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5853662acc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f585590984e in QEventDispatcherGlib::processEvents (this=0x7f5820000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f58558b017b in QEventLoop::exec (this=this@entry=0x7f583cdf9b90, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#8  0x00007f58556cab87 in QThread::exec (this=this@entry=0x7f585636ad80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#9  0x00007f58562f2487 in QDBusConnectionManager::run (this=0x7f585636ad80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ./src/dbus/qdbusconnection.cpp:179
#10 0x00007f58556cbd43 in QThreadPrivate::start (arg=0x7f585636ad80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:331
#11 0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#12 0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 2 (Thread 0x7f583f5ff6c0 (LWP 6327)):
warning: Section `.reg-xstate/6327' in core file too small.
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x5593da56817c) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x5593da56817c, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0, cancel=cancel@entry=true) at ./nptl/futex-internal.c:87
#2  0x00007f58548a4efb in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x5593da56817c, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f58548a7558 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5593da568128, cond=0x5593da568150) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x5593da568150, mutex=0x5593da568128) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f584c90c059 in cnd_wait (cond=<optimized out>, mtx=<optimized out>) at ../src/c11/impl/threads_posix.c:135
#6  0x00007f584c8be17b in util_queue_thread_func (input=input@entry=0x5593da5695b0) at ../src/util/u_queue.c:290
#7  0x00007f584c90bf97 in impl_thrd_routine (p=<optimized out>) at ../src/c11/impl/threads_posix.c:67
#8  0x00007f58548a8134 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f58549287dc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 1 (Thread 0x7f58505f19c0 (LWP 6314)):
[KCrash Handler]
#5  0x00007f585762fcdf in KWin::Workspace::workspaceEvent (this=0x5593da7987b0, e=0x7f5848069ae0) at ./src/events.cpp:288
#6  0x00007f58558aec7f in QAbstractEventDispatcher::filterNativeEvent (this=<optimized out>, eventType=..., message=message@entry=0x7f5848069ae0, result=result@entry=0x7fffcdce19c8) at kernel/qabstracteventdispatcher.cpp:495
#7  0x00007f58500d440f in QXcbConnection::handleXcbEvent (this=this@entry=0x5593da34f1d0, event=event@entry=0x7f5848069ae0) at ./src/plugins/platforms/xcb/qxcbconnection.cpp:579
#8  0x00007f58500d5ab6 in QXcbConnection::processXcbEvents (this=0x5593da34f1d0, flags=...) at ./src/plugins/platforms/xcb/qxcbconnection.cpp:1063
#9  0x00007f58500fbec3 in xcbSourceDispatch (source=<optimized out>) at ./src/plugins/platforms/xcb/qxcbeventdispatcher.cpp:103
#10 0x00007f58536627a9 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f5853662a38 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f5853662acc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f5855909836 in QEventDispatcherGlib::processEvents (this=0x5593da486c70, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#14 0x00007f58558b017b in QEventLoop::exec (this=this@entry=0x7fffcdce1c50, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#15 0x00007f58558b82d6 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#16 0x00005593da20d2d1 in ?? ()
#17 0x00007f585484624a in __libc_start_call_main (main=main@entry=0x5593da20cef0, argc=argc@entry=2, argv=argv@entry=0x7fffcdce1f48) at ../sysdeps/nptl/libc_start_call_main.h:58
#18 0x00007f5854846305 in __libc_start_main_impl (main=0x5593da20cef0, argc=2, argv=0x7fffcdce1f48, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffcdce1f38) at ../csu/libc-start.c:360
#19 0x00005593da20e7b1 in ?? ()

Reported using DrKonqi