[okular] [Bug 436840] New: Okular crashes unexpectedly

Fábio Moura bugzilla_noreply at kde.org
Sun May 9 22:51:11 BST 2021 

https://bugs.kde.org/show_bug.cgi?id=436840

            Bug ID: 436840
           Summary: Okular crashes unexpectedly
           Product: okular
           Version: unspecified
          Platform: Neon Packages
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: okular-devel at kde.org
          Reporter: fabirosmash at gmail.com
  Target Milestone: ---

Application: okular (21.07.70)

Qt Version: 5.15.2
Frameworks Version: 5.83.0
Operating System: Linux 5.12.2-051202-generic x86_64
Windowing System: X11
Drkonqi Version: 5.21.80
Distribution: KDE neon Unstable Edition

-- Information about the crash:
- What I was doing when the application crashed:

Okular crashes when I close it. Doing nothing uncommon. I Just open some random
pdf file and when I press the close button, the app crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: Okular (okular), signal: Segmentation fault

[New LWP 3206]
[New LWP 3207]
[New LWP 3208]
[New LWP 3209]
[New LWP 3210]
[New LWP 3211]
[New LWP 3212]
[New LWP 3213]
[New LWP 3214]
[New LWP 3215]
[New LWP 3216]
[New LWP 3217]
[New LWP 3218]
[New LWP 3219]
[New LWP 3220]
[New LWP 3221]
[New LWP 3222]
[New LWP 3223]
[New LWP 3224]
[New LWP 3225]
[New LWP 3226]
[New LWP 3227]
[New LWP 3228]
[New LWP 3229]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f2cb0b40aff in __GI___poll (fds=0x7ffcfe2f7f58, nfds=1, timeout=1000) at
../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7f2cad2918c0 (LWP 3205))]

Thread 25 (Thread 0x7f2c6cff9700 (LWP 3229)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd14e8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd1498,
cond=0x5616f7dd14c0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd14c0, mutex=0x5616f7dd1498) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7f2c6d7fa700 (LWP 3228)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd14e8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd1498,
cond=0x5616f7dd14c0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd14c0, mutex=0x5616f7dd1498) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f2c6dffb700 (LWP 3227)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd14e8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd1498,
cond=0x5616f7dd14c0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd14c0, mutex=0x5616f7dd1498) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f2c6e7fc700 (LWP 3226)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd14e8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd1498,
cond=0x5616f7dd14c0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd14c0, mutex=0x5616f7dd1498) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7f2c6effd700 (LWP 3225)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd14e8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd1498,
cond=0x5616f7dd14c0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd14c0, mutex=0x5616f7dd1498) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f2c6f7fe700 (LWP 3224)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd0de0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd0d90,
cond=0x5616f7dd0db8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd0db8, mutex=0x5616f7dd0d90) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f2c6ffff700 (LWP 3223)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd0de0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd0d90,
cond=0x5616f7dd0db8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd0db8, mutex=0x5616f7dd0d90) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f2c8cff9700 (LWP 3222)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd0de0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd0d90,
cond=0x5616f7dd0db8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd0db8, mutex=0x5616f7dd0d90) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f2c8d7fa700 (LWP 3221)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd0de0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd0d90,
cond=0x5616f7dd0db8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd0db8, mutex=0x5616f7dd0d90) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f2c8dffb700 (LWP 3220)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd0de0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd0d90,
cond=0x5616f7dd0db8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd0db8, mutex=0x5616f7dd0d90) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f2c8e7fc700 (LWP 3219)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd0de0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd0d90,
cond=0x5616f7dd0db8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd0db8, mutex=0x5616f7dd0d90) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f2c8effd700 (LWP 3218)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd0de0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd0d90,
cond=0x5616f7dd0db8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd0db8, mutex=0x5616f7dd0d90) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f2c8f7fe700 (LWP 3217)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd0de0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd0d90,
cond=0x5616f7dd0db8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd0db8, mutex=0x5616f7dd0d90) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f2c8ffff700 (LWP 3216)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd0de0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd0d90,
cond=0x5616f7dd0db8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd0db8, mutex=0x5616f7dd0d90) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f2c94845700 (LWP 3215)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd0de0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd0d90,
cond=0x5616f7dd0db8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd0db8, mutex=0x5616f7dd0d90) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f2c95046700 (LWP 3214)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd0de0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd0d90,
cond=0x5616f7dd0db8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd0db8, mutex=0x5616f7dd0d90) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f2c95847700 (LWP 3213)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dd0de0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dd0d90,
cond=0x5616f7dd0db8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dd0db8, mutex=0x5616f7dd0d90) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f2c96048700 (LWP 3212)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f779ef08) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f779eeb8,
cond=0x5616f779eee0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f779eee0, mutex=0x5616f779eeb8) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f2c96849700 (LWP 3211)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f779ef08) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f779eeb8,
cond=0x5616f779eee0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f779eee0, mutex=0x5616f779eeb8) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f2ca0c76700 (LWP 3210)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f779ef08) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f779eeb8,
cond=0x5616f779eee0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f779eee0, mutex=0x5616f779eeb8) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f2ca1477700 (LWP 3209)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f779ef08) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f779eeb8,
cond=0x5616f779eee0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f779eee0, mutex=0x5616f779eeb8) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f2ca1db9700 (LWP 3208)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x5616f7dcd500) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5616f7dcd4b0,
cond=0x5616f7dcd4d8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5616f7dcd4d8, mutex=0x5616f7dcd4b0) at
pthread_cond_wait.c:647
#3  0x00007f2ca208ed3b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f2ca208e93b in ?? () from
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f2caaa53700 (LWP 3207)):
#0  0x00007ffcfe312b1d in ?? ()
#1  0x00007f2cb0b0b235 in __GI___clock_gettime (clock_id=1, tp=0x7f2caaa52a20)
at ../sysdeps/unix/sysv/linux/clock_gettime.c:38
#2  0x00007f2cb110d8c5 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f2cb110c15d in QTimerInfoList::updateCurrentTime() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2cb110c739 in QTimerInfoList::timerWait(timespec&) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f2cb110dd56 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f2caf69b8ef in g_main_context_prepare () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f2caf69c29b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f2caf69c4a3 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f2cb110dffb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f2cb10b21eb in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f2cb0ecca52 in QThread::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f2cb136df4b in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#13 0x00007f2cb0ecdbec in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#15 0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f2cac6d3700 (LWP 3206)):
#0  0x00007f2cb0b40aff in __GI___poll (fds=0x7f2cac6d2be8, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f2cb0442c1a in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f2cb044490a in xcb_wait_for_event () from
/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f2cacc0bd58 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f2cb0ecdbec in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f2cb00bd609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f2cb0b4d293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f2cad2918c0 (LWP 3205)):
[KCrash Handler]
#4  __memmove_avx_unaligned_erms () at
../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:384
#5  0x00007f2cb23779f4 in ?? () from
/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#6  0x00007f2cb23750cc in ?? () from
/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#7  0x00007f2cb10ea6fe in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f2cb10e3b83 in QObject::destroyed(QObject*) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f2cb1c6771b in QWidget::~QWidget() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f2cb1d327ad in QComboBox::~QComboBox() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f2cb1c6ecbf in QWidgetAction::~QWidgetAction() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f2cb23738dd in KSelectAction::~KSelectAction() () from
/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#13 0x00007f2cb10ddcfe in QObjectPrivate::deleteChildren() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f2cb1c675b6 in QWidget::~QWidget() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f2ca9777967 in PageView::~PageView (this=0x5616f78fcea0,
__in_chrg=<optimized out>) at /usr/include/c++/9/bits/atomic_base.h:326
#16 0x00007f2ca9777b0d in PageView::~PageView (this=0x5616f78fcea0,
__in_chrg=<optimized out>) at ./part/pageview.cpp:508
#17 0x00007f2cb10ddcfe in QObjectPrivate::deleteChildren() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f2cb1c675b6 in QWidget::~QWidget() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f2cb1c677ad in QWidget::~QWidget() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f2cb10ddcfe in QObjectPrivate::deleteChildren() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f2cb1c675b6 in QWidget::~QWidget() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f2cb1de170d in QSplitter::~QSplitter() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f2cb10ddcfe in QObjectPrivate::deleteChildren() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f2cb1c675b6 in QWidget::~QWidget() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f2ca979830d in Sidebar::~Sidebar (this=0x5616f774bd60,
__in_chrg=<optimized out>) at ./part/sidebar.cpp:85
#26 0x00007f2cb10ddcfe in QObjectPrivate::deleteChildren() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f2cb1c675b6 in QWidget::~QWidget() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007f2cb1de255d in QStackedWidget::~QStackedWidget() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f2cb10ddcfe in QObjectPrivate::deleteChildren() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f2cb1c675b6 in QWidget::~QWidget() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007f2cb1e0572d in QTabWidget::~QTabWidget() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00005616f5d37819 in Shell::~Shell (this=this at entry=0x5616f76db580,
__in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ./shell/shell.cpp:223
#33 0x00005616f5d379ad in Shell::~Shell (this=0x5616f76db580,
__in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ./shell/shell.cpp:211
#34 0x00007f2cb10e1013 in QObject::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007f2cb1c6bbad in QWidget::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007f2cb1d848c8 in QMainWindow::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#37 0x00007f2cb2558c23 in KMainWindow::event(QEvent*) () from
/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#38 0x00007f2cb25a4cfb in KXmlGuiWindow::event(QEvent*) () from
/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#39 0x00007f2cb1c28dc3 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#40 0x00007f2cb1c31bb8 in QApplication::notify(QObject*, QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#41 0x00007f2cb10b36da in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#42 0x00007f2cb10b5fe1 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#43 0x00007f2cb110e987 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007f2caf69c17d in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f2caf69c400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f2caf69c4a3 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f2cb110dfe2 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#48 0x00007f2cb10b21eb in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#49 0x00007f2cb10ba394 in QCoreApplication::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#50 0x00005616f5d2ce9a in main (argc=<optimized out>, argv=<optimized out>) at
./shell/main.cpp:107
[Inferior 1 (process 3205) detached]

Possible duplicates by query: bug 413345, bug 410586, bug 367653, bug 330038,
bug 320526.

Reported using DrKonqi

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