Application: plasmashell (5.27.5)

Qt Version: 5.15.8
Frameworks Version: 5.103.0
Operating System: Linux 6.4.0-0.deb12.2-amd64 x86_64
Windowing System: X11
Distribution: Debian GNU/Linux 12 (bookworm)
DrKonqi: 5.27.5 [CoredumpBackend]

-- Information about the crash:
I have two monitors and sometimes plasma is losing windows shadows, windows become flat. Looks like compositor or window decorations crashed.
I did nothing special, browsing FF, surfing files.

Thanks.

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault

           PID: 2374 (plasmashell)
           UID: 1000 (ilyas)
           GID: 1000 (ilyas)
        Signal: 11 (SEGV)
     Timestamp: Mon 2025-01-13 20:18:09 +03 (1h 39min ago)
  Command Line: /usr/bin/plasmashell --no-respawn
    Executable: /usr/bin/plasmashell
 Control Group: /user.slice/user-1000.slice/user@1000.service/session.slice/plasma-plasmashell.service
          Unit: user@1000.service
     User Unit: plasma-plasmashell.service
         Slice: user-1000.slice
     Owner UID: 1000 (ilyas)
       Boot ID: c1eb527e26394fd2a36167f50330eb1f
    Machine ID: 294a8a5916a54a2a89bb66be9363b707
      Hostname: debian
       Storage: /var/lib/systemd/coredump/core.plasmashell.1000.c1eb527e26394fd2a36167f50330eb1f.2374.1736788689000000.zst (present)
  Size on Disk: 49.0M
       Message: Process 2374 (plasmashell) of user 1000 dumped core.
                
                Module /usr/lib/x86_64-linux-gnu/libsystemd.so.0.35.0 (deleted) from deb systemd-252.31-1~deb12u1.amd64
                Module /usr/lib/x86_64-linux-gnu/libudev.so.1.7.5 (deleted) from deb systemd-252.31-1~deb12u1.amd64
                Stack trace of thread 2374:
                #0  0x00007f6aa56aeda4 __GI___pthread_sigmask (libc.so.6 + 0x8fda4)
                #1  0x00007f6aa565b239 __GI___sigprocmask (libc.so.6 + 0x3c239)
                #2  0x00007f6aa7d06e9b _ZN6KCrash15setCrashHandlerEPFviE (libKF5Crash.so.5 + 0x4e9b)
                #3  0x00007f6aa7d07b3e _ZN6KCrash19defaultCrashHandlerEi (libKF5Crash.so.5 + 0x5b3e)
                #4  0x00007f6aa565b050 __restore_rt (libc.so.6 + 0x3c050)
                #5  0x00007f6aa785670b _ZN10QQuickItemD1Ev (libQt5Quick.so.5 + 0x25670b)
                #6  0x00007f6aa79d03e5 n/a (libQt5Quick.so.5 + 0x3d03e5)
                #7  0x00007f6aa5add4ff _ZN7QObject5eventEP6QEvent (libQt5Core.so.5 + 0x2dd4ff)
                #8  0x00007f6aa6962fae _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5 + 0x162fae)
                #9  0x00007f6aa5ab1738 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5 + 0x2b1738)
                #10 0x00007f6aa5ab46c1 _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (libQt5Core.so.5 + 0x2b46c1)
                #11 0x00007f6aa5b0a193 n/a (libQt5Core.so.5 + 0x30a193)
                #12 0x00007f6aa45027a9 n/a (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.7400.6 (deleted) + 0x547a9)
                ELF object binary architecture: AMD x86-64


This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.debian.net>
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.
[New LWP 2374]
[New LWP 2393]
[New LWP 2388]
[New LWP 7600]
[New LWP 2386]
[New LWP 7601]
[New LWP 2789]
[New LWP 54815]
[New LWP 3098]
[New LWP 2387]
[New LWP 2389]
[New LWP 2467]
[New LWP 2392]
[New LWP 54816]
[New LWP 2563]
[New LWP 368350]
[New LWP 128203]
[New LWP 2558]
[New LWP 128202]
[New LWP 2565]
[New LWP 2790]
[New LWP 2785]
[New LWP 2579]
[New LWP 3099]
[New LWP 7599]
[New LWP 3100]
[New LWP 3107]
[New LWP 368349]
[New LWP 7598]
[New LWP 2380]
[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/plasmashell --no-respawn'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  __GI___pthread_sigmask (how=1, newmask=<optimized out>, oldmask=0x0) at ./nptl/pthread_sigmask.c:43
[Current thread is 1 (Thread 0x7f6aa44049c0 (LWP 2374))]
[Current thread is 29 (Thread 0x7f6a267fc6c0 (LWP 7598))]

Thread 30 (Thread 0x7f6aa05ff6c0 (LWP 2380)):
#0  0x00007f6aa571b1df in __GI___poll (fds=0x7f6aa05feac8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f6aa7f68d12 in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f6aa7f6b07a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f6aa0d5ef00 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f6aa58cbd83 in QThreadPrivate::start (arg=0x55d0c48d1b50) at thread/qthread_unix.cpp:331
#5  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#6  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 29 (Thread 0x7f6a267fc6c0 (LWP 7598)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c867df44) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c867df44, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c867df44, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c867def0, cond=0x55d0c867df18) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c867df18, mutex=0x55d0c867def0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6a9d90c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#6  0x00007f6a9d8be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#7  0x00007f6a9d90bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 28 (Thread 0x7f69d7fff6c0 (LWP 368349)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c8ca3434) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c8ca3434, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c8ca3434, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c8ca33e0, cond=0x55d0c8ca3408) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c8ca3408, mutex=0x55d0c8ca33e0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6a9d90c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#6  0x00007f6a9d8be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#7  0x00007f6a9d90bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 27 (Thread 0x7f6a5c80f6c0 (LWP 3107)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f6a3c11e5a0) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7f6a3c11e5a0, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7f6a3c11e5a0, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f6a3c11e550, cond=0x7f6a3c11e578) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7f6a3c11e578, mutex=0x7f6a3c11e550) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6a9d90c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#6  0x00007f6a9d8be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#7  0x00007f6a9d90bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 26 (Thread 0x7f6a5d0106c0 (LWP 3100)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c7bdaad4) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c7bdaad4, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c7bdaad4, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c7bdaa80, cond=0x55d0c7bdaaa8) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c7bdaaa8, mutex=0x55d0c7bdaa80) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6aa58d1a6b in QWaitConditionPrivate::wait (deadline=..., this=0x55d0c7bdaa80) at thread/qwaitcondition_unix.cpp:146
#6  QWaitCondition::wait (this=this@entry=0x55d0c7be2a08, mutex=mutex@entry=0x55d0c7be2a00, deadline=...) at thread/qwaitcondition_unix.cpp:225
#7  0x00007f6aa7808085 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55d0c7be29f8) at scenegraph/qsgthreadedrenderloop.cpp:257
#8  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55d0c7be2960) at scenegraph/qsgthreadedrenderloop.cpp:935
#9  0x00007f6aa780a4b1 in QSGRenderThread::run (this=0x55d0c7be2960) at scenegraph/qsgthreadedrenderloop.cpp:1052
#10 0x00007f6aa58cbd83 in QThreadPrivate::start (arg=0x55d0c7be2960) at thread/qthread_unix.cpp:331
#11 0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#12 0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 25 (Thread 0x7f6a25ffb6c0 (LWP 7599)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c76a1d00) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c76a1d00, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c76a1d00, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c76a1cb0, cond=0x55d0c76a1cd8) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c76a1cd8, mutex=0x55d0c76a1cb0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6aa58d1a6b in QWaitConditionPrivate::wait (deadline=..., this=0x55d0c76a1cb0) at thread/qwaitcondition_unix.cpp:146
#6  QWaitCondition::wait (this=this@entry=0x55d0c6274f98, mutex=mutex@entry=0x55d0c6274f90, deadline=...) at thread/qwaitcondition_unix.cpp:225
#7  0x00007f6aa7808085 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55d0c6274f88) at scenegraph/qsgthreadedrenderloop.cpp:257
#8  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55d0c6274ef0) at scenegraph/qsgthreadedrenderloop.cpp:935
#9  0x00007f6aa780a4b1 in QSGRenderThread::run (this=0x55d0c6274ef0) at scenegraph/qsgthreadedrenderloop.cpp:1052
#10 0x00007f6aa58cbd83 in QThreadPrivate::start (arg=0x55d0c6274ef0) at thread/qthread_unix.cpp:331
#11 0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#12 0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 24 (Thread 0x7f6a5e8136c0 (LWP 3099)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c84a9d70) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c84a9d70, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c84a9d70, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c84a9d20, cond=0x55d0c84a9d48) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c84a9d48, mutex=0x55d0c84a9d20) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6a9d90c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#6  0x00007f6a9d8be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#7  0x00007f6a9d90bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 23 (Thread 0x7f6a3bfff6c0 (LWP 2579)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c4a8e804) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c4a8e804, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c4a8e804, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c4a8e7b0, cond=0x55d0c4a8e7d8) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c4a8e7d8, mutex=0x55d0c4a8e7b0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6a9d90c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#6  0x00007f6a9d8be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#7  0x00007f6a9d90bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 22 (Thread 0x7f6a3b0156c0 (LWP 2785)):
#0  pselect64_syscall (sigmask=<optimized out>, timeout=<optimized out>, exceptfds=0x0, writefds=0x0, readfds=0x7f6a3b00cad0, nfds=5) at ../sysdeps/unix/sysv/linux/pselect.c:34
#1  __pselect (nfds=5, readfds=0x7f6a3b00cad0, writefds=0x0, exceptfds=0x0, timeout=<optimized out>, sigmask=<optimized out>) at ../sysdeps/unix/sysv/linux/pselect.c:56
#2  0x00007f6aa36caa62 in ?? () from /lib/x86_64-linux-gnu/libusbmuxd-2.0.so.6
#3  0x00007f6aa36cbe60 in ?? () from /lib/x86_64-linux-gnu/libusbmuxd-2.0.so.6
#4  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#5  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 21 (Thread 0x7f6a38dc56c0 (LWP 2790)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c75ab044) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c75ab044, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c75ab044, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c75aaff0, cond=0x55d0c75ab018) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c75ab018, mutex=0x55d0c75aaff0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6aa58d1a6b in QWaitConditionPrivate::wait (deadline=..., this=0x55d0c75aaff0) at thread/qwaitcondition_unix.cpp:146
#6  QWaitCondition::wait (this=this@entry=0x55d0c75aa5e8, mutex=mutex@entry=0x55d0c75aa5e0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#7  0x00007f6aa7808085 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55d0c75aa5d8) at scenegraph/qsgthreadedrenderloop.cpp:257
#8  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55d0c75aa540) at scenegraph/qsgthreadedrenderloop.cpp:935
#9  0x00007f6aa780a4b1 in QSGRenderThread::run (this=0x55d0c75aa540) at scenegraph/qsgthreadedrenderloop.cpp:1052
#10 0x00007f6aa58cbd83 in QThreadPrivate::start (arg=0x55d0c75aa540) at thread/qthread_unix.cpp:331
#11 0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#12 0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 20 (Thread 0x7f6a5ffff6c0 (LWP 2565)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c52c9f90) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c52c9f90, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c52c9f90, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c52c9f40, cond=0x55d0c52c9f68) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c52c9f68, mutex=0x55d0c52c9f40) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6aa58d1a6b in QWaitConditionPrivate::wait (deadline=..., this=0x55d0c52c9f40) at thread/qwaitcondition_unix.cpp:146
#6  QWaitCondition::wait (this=this@entry=0x55d0c525cd48, mutex=mutex@entry=0x55d0c525cd40, deadline=...) at thread/qwaitcondition_unix.cpp:225
#7  0x00007f6aa7808085 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55d0c525cd38) at scenegraph/qsgthreadedrenderloop.cpp:257
#8  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55d0c525cca0) at scenegraph/qsgthreadedrenderloop.cpp:935
#9  0x00007f6aa780a4b1 in QSGRenderThread::run (this=0x55d0c525cca0) at scenegraph/qsgthreadedrenderloop.cpp:1052
#10 0x00007f6aa58cbd83 in QThreadPrivate::start (arg=0x55d0c525cca0) at thread/qthread_unix.cpp:331
#11 0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#12 0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 19 (Thread 0x7f69edbfc6c0 (LWP 128202)):
#0  0x00007f6aa4501e20 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f6aa45028e3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6aa4502acc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6aa5b0988e in QEventDispatcherGlib::processEvents (this=0x7f6a440b7450, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f6aa5ab01bb in QEventLoop::exec (this=this@entry=0x7f69edbfbbc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007f6aa58cabc7 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f6aa58cbd83 in QThreadPrivate::start (arg=0x55d0c71ae2d0) at thread/qthread_unix.cpp:331
#7  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#8  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 18 (Thread 0x7f6a6f5bf6c0 (LWP 2558)):
#0  0x00007f6aa571b1df in __GI___poll (fds=0x7f6a68005740, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f6aa45029ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6aa4502acc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6aa5b09876 in QEventDispatcherGlib::processEvents (this=0x7f6a68000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#4  0x00007f6aa5ab01bb in QEventLoop::exec (this=this@entry=0x7f6a6f5beb80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007f6aa58cabc7 in QThread::exec (this=this@entry=0x55d0c4ebee70) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f6aa77566d6 in QQuickPixmapReader::run (this=0x55d0c4ebee70) at util/qquickpixmapcache.cpp:1024
#7  0x00007f6aa58cbd83 in QThreadPrivate::start (arg=0x55d0c4ebee70) at thread/qthread_unix.cpp:331
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 17 (Thread 0x7f69ed3fb6c0 (LWP 128203)):
#0  0x00007f6aa571b1df in __GI___poll (fds=0x7f69dc00cae0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f6aa45029ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6aa4502acc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6aa5b09876 in QEventDispatcherGlib::processEvents (this=0x7f69dc03e600, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#4  0x00007f6aa5ab01bb in QEventLoop::exec (this=this@entry=0x7f69ed3fabc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007f6aa58cabc7 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f6aa58cbd83 in QThreadPrivate::start (arg=0x55d0c86141e0) at thread/qthread_unix.cpp:331
#7  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#8  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 16 (Thread 0x7f69d6ffd6c0 (LWP 368350)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c94e7da4) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c94e7da4, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c94e7da4, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c94e7d50, cond=0x55d0c94e7d78) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c94e7d78, mutex=0x55d0c94e7d50) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6aa58d1a6b in QWaitConditionPrivate::wait (deadline=..., this=0x55d0c94e7d50) at thread/qwaitcondition_unix.cpp:146
#6  QWaitCondition::wait (this=this@entry=0x55d0c976e9f8, mutex=mutex@entry=0x55d0c976e9f0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#7  0x00007f6aa7808085 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55d0c976e9e8) at scenegraph/qsgthreadedrenderloop.cpp:257
#8  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55d0c976e950) at scenegraph/qsgthreadedrenderloop.cpp:935
#9  0x00007f6aa780a4b1 in QSGRenderThread::run (this=0x55d0c976e950) at scenegraph/qsgthreadedrenderloop.cpp:1052
#10 0x00007f6aa58cbd83 in QThreadPrivate::start (arg=0x55d0c976e950) at thread/qthread_unix.cpp:331
#11 0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#12 0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 15 (Thread 0x7f6a64ad86c0 (LWP 2563)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c585c900) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c585c900, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c585c900, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c585c8b0, cond=0x55d0c585c8d8) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c585c8d8, mutex=0x55d0c585c8b0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6a9d90c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#6  0x00007f6a9d8be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#7  0x00007f6a9d90bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 14 (Thread 0x7f69ef3ff6c0 (LWP 54816)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f6a70071c30) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7f6a70071c30, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7f6a70071c30, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f6a70071be0, cond=0x7f6a70071c08) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7f6a70071c08, mutex=0x7f6a70071be0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6aa58d1a6b in QWaitConditionPrivate::wait (deadline=..., this=0x7f6a70071be0) at thread/qwaitcondition_unix.cpp:146
#6  QWaitCondition::wait (this=this@entry=0x55d0c8f8c8c8, mutex=mutex@entry=0x55d0c8f8c8c0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#7  0x00007f6aa7808085 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55d0c8f8c8b8) at scenegraph/qsgthreadedrenderloop.cpp:257
#8  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55d0c8f8c820) at scenegraph/qsgthreadedrenderloop.cpp:935
#9  0x00007f6aa780a4b1 in QSGRenderThread::run (this=0x55d0c8f8c820) at scenegraph/qsgthreadedrenderloop.cpp:1052
#10 0x00007f6aa58cbd83 in QThreadPrivate::start (arg=0x55d0c8f8c820) at thread/qthread_unix.cpp:331
#11 0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#12 0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 13 (Thread 0x7f6a8e5fd6c0 (LWP 2392)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c4bbf0b0) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c4bbf0b0, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c4bbf0b0, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c4bbf060, cond=0x55d0c4bbf088) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c4bbf088, mutex=0x55d0c4bbf060) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6a9d90c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#6  0x00007f6a9d8be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#7  0x00007f6a9d90bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 12 (Thread 0x7f6a8c9ff6c0 (LWP 2467)):
#0  0x00007f6aa571b1df in __GI___poll (fds=0x7f6a740025e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f6aa45029ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6aa4502acc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6aa5b09876 in QEventDispatcherGlib::processEvents (this=0x7f6a74000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#4  0x00007f6aa5ab01bb in QEventLoop::exec (this=this@entry=0x7f6a8c9feba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007f6aa58cabc7 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f6aa7328555 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6aa58cbd83 in QThreadPrivate::start (arg=0x55d0c4e54a50) at thread/qthread_unix.cpp:331
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 11 (Thread 0x7f6a8edfe6c0 (LWP 2389)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c4a8ed74) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c4a8ed74, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c4a8ed74, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c4a8ed20, cond=0x55d0c4a8ed48) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c4a8ed48, mutex=0x55d0c4a8ed20) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6a9d90c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#6  0x00007f6a9d8be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#7  0x00007f6a9d90bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 10 (Thread 0x7f6a9cffe6c0 (LWP 2387)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c4afd8f8) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c4afd8f8, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c4afd8f8, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c4afd8a8, cond=0x55d0c4afd8d0) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c4afd8d0, mutex=0x55d0c4afd8a8) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6a9d90c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#6  0x00007f6a9d8be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#7  0x00007f6a9d90bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 9 (Thread 0x7f6a5f0146c0 (LWP 3098)):
#0  __GI___libc_read (nbytes=10, buf=0x7f6a5f013a0e, fd=20) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=20, buf=0x7f6a5f013a0e, nbytes=10) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f6a3a33b381 in pa_read () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-16.1.so
#3  0x00007f6a3a5feb8e in pa_mainloop_prepare () from /lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f6a3a5ff5f8 in pa_mainloop_iterate () from /lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f6a3a5ff6b0 in pa_mainloop_run () from /lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f6a3a60d3b9 in ?? () from /lib/x86_64-linux-gnu/libpulse.so.0
#7  0x00007f6a3a36f33f in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-16.1.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 8 (Thread 0x7f6a27fff6c0 (LWP 54815)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c9972de0) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c9972de0, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c9972de0, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c9972d90, cond=0x55d0c9972db8) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c9972db8, mutex=0x55d0c9972d90) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6a9d90c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#6  0x00007f6a9d8be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#7  0x00007f6a9d90bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 7 (Thread 0x7f6a395c76c0 (LWP 2789)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c75ed744) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c75ed744, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c75ed744, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c75ed6f0, cond=0x55d0c75ed718) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c75ed718, mutex=0x55d0c75ed6f0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6a9d90c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#6  0x00007f6a9d8be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#7  0x00007f6a9d90bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 6 (Thread 0x7f6a24ff96c0 (LWP 7601)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c8901180) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c8901180, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c8901180, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c8901130, cond=0x55d0c8901158) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c8901158, mutex=0x55d0c8901130) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6aa58d1a6b in QWaitConditionPrivate::wait (deadline=..., this=0x55d0c8901130) at thread/qwaitcondition_unix.cpp:146
#6  QWaitCondition::wait (this=this@entry=0x55d0c609cb58, mutex=mutex@entry=0x55d0c609cb50, deadline=...) at thread/qwaitcondition_unix.cpp:225
#7  0x00007f6aa7808085 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55d0c609cb48) at scenegraph/qsgthreadedrenderloop.cpp:257
#8  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55d0c609cab0) at scenegraph/qsgthreadedrenderloop.cpp:935
#9  0x00007f6aa780a4b1 in QSGRenderThread::run (this=0x55d0c609cab0) at scenegraph/qsgthreadedrenderloop.cpp:1052
#10 0x00007f6aa58cbd83 in QThreadPrivate::start (arg=0x55d0c609cab0) at thread/qthread_unix.cpp:331
#11 0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#12 0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 5 (Thread 0x7f6a9d7ff6c0 (LWP 2386)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c4a822fc) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c4a822fc, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c4a822fc, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c4a822a8, cond=0x55d0c4a822d0) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c4a822d0, mutex=0x55d0c4a822a8) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6a9d90c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#6  0x00007f6a9d8be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#7  0x00007f6a9d90bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 4 (Thread 0x7f6a257fa6c0 (LWP 7600)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c8929fe0) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c8929fe0, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c8929fe0, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c8929f90, cond=0x55d0c8929fb8) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c8929fb8, mutex=0x55d0c8929f90) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6a9d90c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#6  0x00007f6a9d8be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#7  0x00007f6a9d90bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 3 (Thread 0x7f6a8f5ff6c0 (LWP 2388)):
#0  __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x55d0c4a8e804) at ./nptl/futex-internal.c:57
#1  __futex_abstimed_wait_common (futex_word=futex_word@entry=0x55d0c4a8e804, 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  0x00007f6aa56a4f7b in __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x55d0c4a8e804, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007f6aa56a75d8 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55d0c4a8e7b0, cond=0x55d0c4a8e7d8) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x55d0c4a8e7d8, mutex=0x55d0c4a8e7b0) at ./nptl/pthread_cond_wait.c:618
#5  0x00007f6a9d90c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#6  0x00007f6a9d8be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#7  0x00007f6a9d90bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 2 (Thread 0x7f6a8ddfc6c0 (LWP 2393)):
#0  0x00007f6aa571b1df in __GI___poll (fds=0x7f6a700173a0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f6aa45029ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6aa4502acc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6aa5b0988e in QEventDispatcherGlib::processEvents (this=0x7f6a70000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f6aa5ab01bb in QEventLoop::exec (this=this@entry=0x7f6a8ddfbb90, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007f6aa58cabc7 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f6aa6669487 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f6aa58cbd83 in QThreadPrivate::start (arg=0x7f6aa66e1d80) at thread/qthread_unix.cpp:331
#8  0x00007f6aa56a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007f6aa572885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 1 (Thread 0x7f6aa44049c0 (LWP 2374)):
[KCrash Handler]
#5  0x00007f6aa785670b in QQuickItem::~QQuickItem (this=this@entry=0x55d0c82ea870, __in_chrg=<optimized out>) at items/qquickitem.cpp:2345
#6  0x00007f6aa79d03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x55d0c82ea870, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#7  QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x55d0c82ea870, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#8  0x00007f6aa5add4ff in QObject::event (this=0x55d0c82ea870, e=0x55d0c8909300) at kernel/qobject.cpp:1334
#9  0x00007f6aa6962fae in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x55d0c82ea870, e=0x55d0c8909300) at kernel/qapplication.cpp:3640
#10 0x00007f6aa5ab1738 in QCoreApplication::notifyInternal2 (receiver=0x55d0c82ea870, event=0x55d0c8909300) at kernel/qcoreapplication.cpp:1064
#11 0x00007f6aa5ab18fe in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>) at kernel/qcoreapplication.cpp:1462
#12 0x00007f6aa5ab46c1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55d0c48a0f50) at kernel/qcoreapplication.cpp:1821
#13 0x00007f6aa5ab4b48 in QCoreApplication::sendPostedEvents (receiver=<optimized out>, event_type=<optimized out>) at kernel/qcoreapplication.cpp:1680
#14 0x00007f6aa5b0a193 in postEventSourceDispatch (s=0x55d0c4993750) at kernel/qeventdispatcher_glib.cpp:277
#15 0x00007f6aa45027a9 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f6aa4502a38 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f6aa4502acc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f6aa5b09876 in QEventDispatcherGlib::processEvents (this=0x55d0c4998f40, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#19 0x00007f6aa5ab01bb in QEventLoop::exec (this=this@entry=0x7ffd59786b50, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#20 0x00007f6aa5ab8316 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#21 0x000055d0c3ffedc3 in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:235

Reported using DrKonqi