Application: plasmashell (5.14.5)

Qt Version: 5.11.3
Frameworks Version: 5.54.0
Operating System: Linux 4.19.0-14-amd64 x86_64
Distribution: Debian GNU/Linux 10 (buster)

-- Information about the crash:
- What I was doing when the application crashed:
I was hovering mouse through options, going to sub menus e back.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
28	  return SYSCALL_CANCEL (nanosleep, requested_time, remaining);
[Current thread is 1 (Thread 0x7fc6ac9dc840 (LWP 1645))]

Thread 24 (Thread 0x7fc63e30b700 (LWP 2109)):
#0  0x00007fc6b19df819 in __GI___poll (fds=0x7fc63400ad10, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc6afad4136 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc6afad425c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc6b1ef1743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc6b1e9f15b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc6b1ceee76 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc6b38a4476 in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fc6b1cf8a67 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fc674ff9700 (LWP 2089)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfe66afd8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfe66af88, cond=0x555cfe66afb0) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfe66afb0, mutex=0x555cfe66af88) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fc6757fa700 (LWP 1940)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cb1d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cb180, cond=0x555cfd9cb1a8) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cb1a8, mutex=0x555cfd9cb180) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fc675ffb700 (LWP 1939)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cb1d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cb180, cond=0x555cfd9cb1a8) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cb1a8, mutex=0x555cfd9cb180) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fc6767fc700 (LWP 1938)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cb1d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cb180, cond=0x555cfd9cb1a8) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cb1a8, mutex=0x555cfd9cb180) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fc676ffd700 (LWP 1937)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cb1d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cb180, cond=0x555cfd9cb1a8) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cb1a8, mutex=0x555cfd9cb180) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fc6777fe700 (LWP 1936)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cb1d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cb180, cond=0x555cfd9cb1a8) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cb1a8, mutex=0x555cfd9cb180) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fc67cff9700 (LWP 1935)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cac54) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cac00, cond=0x555cfd9cac28) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cac28, mutex=0x555cfd9cac00) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fc67d7fa700 (LWP 1934)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cac50) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cac00, cond=0x555cfd9cac28) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cac28, mutex=0x555cfd9cac00) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fc67dffb700 (LWP 1933)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cac50) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cac00, cond=0x555cfd9cac28) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cac28, mutex=0x555cfd9cac00) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fc67e7fc700 (LWP 1932)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cac50) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cac00, cond=0x555cfd9cac28) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cac28, mutex=0x555cfd9cac00) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fc67effd700 (LWP 1931)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cac50) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cac00, cond=0x555cfd9cac28) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cac28, mutex=0x555cfd9cac00) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fc67f7fe700 (LWP 1930)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cac50) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cac00, cond=0x555cfd9cac28) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cac28, mutex=0x555cfd9cac00) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fc677fff700 (LWP 1929)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cac50) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cac00, cond=0x555cfd9cac28) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cac28, mutex=0x555cfd9cac00) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fc67ffff700 (LWP 1928)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cac54) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cac00, cond=0x555cfd9cac28) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cac28, mutex=0x555cfd9cac00) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fc694e18700 (LWP 1927)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cac50) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cac00, cond=0x555cfd9cac28) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cac28, mutex=0x555cfd9cac00) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fc695619700 (LWP 1926)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cac50) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cac00, cond=0x555cfd9cac28) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cac28, mutex=0x555cfd9cac00) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fc695e1a700 (LWP 1925)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cac54) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cac00, cond=0x555cfd9cac28) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cac28, mutex=0x555cfd9cac00) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fc69661b700 (LWP 1924)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9cac54) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9cac00, cond=0x555cfd9cac28) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9cac28, mutex=0x555cfd9cac00) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fc696e1c700 (LWP 1923)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd90ec78) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd90ec28, cond=0x555cfd90ec50) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd90ec50, mutex=0x555cfd90ec28) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fc69761d700 (LWP 1922)):
#0  0x00007fc6b0c1b00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x555cfd9c77e4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc6b0c1b00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x555cfd9c7790, cond=0x555cfd9c77b8) at pthread_cond_wait.c:502
#2  0x00007fc6b0c1b00c in __pthread_cond_wait (cond=0x555cfd9c77b8, mutex=0x555cfd9c7790) at pthread_cond_wait.c:655
#3  0x00007fc69b798b23 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc69b798877 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fc6a99a5700 (LWP 1805)):
#0  0x00007fc6b19df819 in __GI___poll (fds=0x7fc6a0004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc6afad4136 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc6afad425c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc6b1ef1743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc6b1e9f15b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc6b1ceee76 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc6b361fc65 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fc6b1cf8a67 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fc6aae8d700 (LWP 1659)):
#0  0x00007fc6b19df819 in __GI___poll (fds=0x7fc69c0130d0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc6afad4136 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc6afad425c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc6b1ef1743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc6b1e9f15b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc6b1ceee76 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc6b272b545 in  () at /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fc6b1cf8a67 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc6b0c14fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007fc6b19ea4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fc6ac9dc840 (LWP 1645)):
[KCrash Handler]
#6  0x00007fc6b1ec9df5 in QMetaObject::activate(QObject*, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc6b34197d0 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fc6b36628de in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007fc6b36695fc in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007fc6b36699cb in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007fc6b1ec98b7 in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fc6b1e53eed in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fc63d1c1abc in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#14 0x00007fc63d1de593 in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#15 0x00007fc63d1e16fb in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#16 0x00007fc6b3573726 in QQmlVMEMetaObject::metaCall(QObject*, QMetaObject::Call, int, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007fc6b3589d32 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#18 0x00007fc6b3587009 in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyData::WriteFlag>) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#19 0x00007fc6b353d590 in QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData*, QV4::Value const&) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#20 0x00007fc6b353dfae in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#21 0x00007fc6b353e0a4 in QV4::QObjectWrapper::put(QV4::Managed*, QV4::String*, QV4::Value const&) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#22 0x00007fc6b355111c in QV4::Runtime::method_storeProperty(QV4::ExecutionEngine*, QV4::Value const&, int, QV4::Value const&) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#23 0x00007fc6b355c959 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#24 0x00007fc63e43d48f in  ()
#25 0x00007fc6a8d664f8 in  ()
#26 0x00007fc6a8d66508 in  ()
#27 0x0000555cfd62eca0 in  ()
#28 0x0000000000000000 in  ()
[Inferior 1 (process 1645) detached]

Reported using DrKonqi