Application: plasmashell (5.22.5)

Qt Version: 5.15.3
Frameworks Version: 5.85.0
Operating System: Linux 5.11.0-34-generic x86_64
Windowing System: X11
Drkonqi Version: 5.22.5
Distribution: KDE neon User Edition 5.22

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

I used the shortcut Shift + Alt + F12 to turn off visual effects like shadows and transparency and plasma disapeared, rebooting automatically after a minute or so.

The reporter is unsure if this crash is reproducible.

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

[New LWP 1287]
[New LWP 1329]
[New LWP 1360]
[New LWP 1361]
[New LWP 1362]
[New LWP 1363]
[New LWP 1388]
[New LWP 1464]
[New LWP 1467]
[New LWP 1477]
[New LWP 1478]
[New LWP 1480]
[New LWP 1486]
[New LWP 1487]
[New LWP 1488]
[New LWP 1491]
[New LWP 1497]
[New LWP 1508]
[New LWP 1525]
[New LWP 1526]
[New LWP 1551]
[New LWP 1742]
[New LWP 3636]
[New LWP 7834]
[New LWP 10377]
[New LWP 14521]
[New LWP 16150]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f101520eaff in __GI___poll (fds=0x7ffded40eeb8, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7f101136e9c0 (LWP 1250))]

Thread 28 (Thread 0x7f0f9d4d7700 (LWP 16150)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55662b868560) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55662b868510, cond=0x55662b868538) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55662b868538, mutex=0x55662b868510) at pthread_cond_wait.c:638
#3  0x00007f10155a359b in QWaitConditionPrivate::wait (deadline=..., this=0x55662b868510) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x7f100809e100, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f10171fab44 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f10171fafb9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f101559d42c in QThreadPrivate::start (arg=0x7f100809e060) at thread/qthread_unix.cpp:329
#8  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7f0fabfff700 (LWP 14521)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f0fabffe8f0, clockid=<optimized out>, expected=0, futex_word=0x7f0fabffeac8) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7f0fabffe8f0, clockid=<optimized out>, mutex=0x7f0fabffea78, cond=0x7f0fabffeaa0) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f0fabffeaa0, mutex=0x7f0fabffea78, abstime=0x7f0fabffe8f0) at pthread_cond_wait.c:656
#3  0x00007f0fc6b2820a in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x0000000000004f14 in ?? ()
#5  0x00000000137177e8 in ?? ()
#6  0x0000000000004ef3 in ?? ()
#7  0x00000000137177e8 in ?? ()
#8  0x00007f0fa40040c8 in ?? ()
#9  0x350ff27417477700 in ?? ()
#10 0x0000000000000000 in ?? ()

Thread 26 (Thread 0x7f0fb57fa700 (LWP 10377)):
#0  0x00007f101520eaff in __GI___poll (fds=0x7f0fac0b3eb0, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0fe2f571d6 in ?? () from /lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007f0fe2f48841 in pa_mainloop_poll () from /lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f0fe2f48ec3 in pa_mainloop_iterate () from /lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f0fe2f48f70 in pa_mainloop_run () from /lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f0fe2f5711d in ?? () from /lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f0fe2cb272c in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.99.so
#7  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7f0f9fb42700 (LWP 7834)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55662d5d9d10) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55662d5d9cc0, cond=0x55662d5d9ce8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55662d5d9ce8, mutex=0x55662d5d9cc0) at pthread_cond_wait.c:638
#3  0x00007f10155a359b in QWaitConditionPrivate::wait (deadline=..., this=0x55662d5d9cc0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x7f100809ecb0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f10171fab44 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f10171fafb9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f101559d42c in QThreadPrivate::start (arg=0x7f100809ec10) at thread/qthread_unix.cpp:329
#8  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7f0fe37fe700 (LWP 3636)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55662d568a80) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55662d568a30, cond=0x55662d568a58) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55662d568a58, mutex=0x55662d568a30) at pthread_cond_wait.c:638
#3  0x00007f10155a359b in QWaitConditionPrivate::wait (deadline=..., this=0x55662d568a30) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x7f1008132640, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f10171fab44 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f10171fafb9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f101559d42c in QThreadPrivate::start (arg=0x7f10081325a0) at thread/qthread_unix.cpp:329
#8  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f0fe3fff700 (LWP 1742)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55662c549d70) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55662c549d20, cond=0x55662c549d48) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55662c549d48, mutex=0x55662c549d20) at pthread_cond_wait.c:638
#3  0x00007f10155a359b in QWaitConditionPrivate::wait (deadline=..., this=0x55662c549d20) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x7f100800ea60, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f10171fab44 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f10171fafb9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f101559d42c in QThreadPrivate::start (arg=0x7f100800e9c0) at thread/qthread_unix.cpp:329
#8  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f0f907b8700 (LWP 1551)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f0f907b7aa8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f0f907b7a58, cond=0x7f0f907b7a80) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f0f907b7a80, mutex=0x7f0f907b7a58) at pthread_cond_wait.c:638
#3  0x00007f0fc6b280ab in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0f907b7900 in ?? ()
#5  0x00007f0fc6b1d58f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x000055662e0cf830 in ?? ()
#7  0x00007f0f907b7928 in ?? ()
#8  0x0000000000000000 in ?? ()

Thread 21 (Thread 0x7f0fa23ae700 (LWP 1526)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55662c3b6070) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55662c3b6020, cond=0x55662c3b6048) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55662c3b6048, mutex=0x55662c3b6020) at pthread_cond_wait.c:638
#3  0x00007f10155a359b in QWaitConditionPrivate::wait (deadline=..., this=0x55662c3b6020) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x55662c6e78d0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f10171fab44 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f10171fafb9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f101559d42c in QThreadPrivate::start (arg=0x55662c6e7830) at thread/qthread_unix.cpp:329
#8  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f0fa3462700 (LWP 1525)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55662bbdc1b0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55662bbdc160, cond=0x55662bbdc188) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55662bbdc188, mutex=0x55662bbdc160) at pthread_cond_wait.c:638
#3  0x00007f10155a359b in QWaitConditionPrivate::wait (deadline=..., this=0x55662bbdc160) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x7f100800a580, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f10171fab44 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f10171fafb9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f101559d42c in QThreadPrivate::start (arg=0x7f100800a4e0) at thread/qthread_unix.cpp:329
#8  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f0fa3fff700 (LWP 1508)):
#0  0x00007f101520eaff in __GI___poll (fds=0x7f0ff00045e0, nfds=1, timeout=841414) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f1013ac036e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1013ac04a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f10157de5eb in QEventDispatcherGlib::processEvents (this=0x7f0ff0000df0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f101578287b in QEventLoop::exec (this=this@entry=0x7f0fa3ffeba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f101559c292 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f0fb45be07c in KCupsConnection::run() () from /lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f101559d42c in QThreadPrivate::start (arg=0x55662c0e7e50) at thread/qthread_unix.cpp:329
#8  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f0fa8dea700 (LWP 1497)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f0fa8de99c8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f0fa8de9978, cond=0x7f0fa8de99a0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f0fa8de99a0, mutex=0x7f0fa8de9978) at pthread_cond_wait.c:638
#3  0x00007f0fc6b280ab in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x0000000000000000 in ?? ()

Thread 17 (Thread 0x7f0fa95eb700 (LWP 1491)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f0fa95eaaa8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f0fa95eaa58, cond=0x7f0fa95eaa80) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f0fa95eaa80, mutex=0x7f0fa95eaa58) at pthread_cond_wait.c:638
#3  0x00007f0fc6b280ab in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0fa95ea900 in ?? ()
#5  0x00007f0fc6b1d58f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x000055662c548580 in ?? ()
#7  0x00007f0fa95ea928 in ?? ()
#8  0x0000000000000000 in ?? ()

Thread 16 (Thread 0x7f0faa7fc700 (LWP 1488)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f0faa7fb9c8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f0faa7fb978, cond=0x7f0faa7fb9a0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f0faa7fb9a0, mutex=0x7f0faa7fb978) at pthread_cond_wait.c:638
#3  0x00007f0fc6b280ab in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7f0faaffd700 (LWP 1487)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f0faaffc9c8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f0faaffc978, cond=0x7f0faaffc9a0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f0faaffc9a0, mutex=0x7f0faaffc978) at pthread_cond_wait.c:638
#3  0x00007f0fc6b280ab in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0faaffc998 in ?? ()
#5  0x00007f0fc6adf4db in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x0000000000000044 in ?? ()
#7  0x0000000005cc8513 in ?? ()
#8  0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7f0fab7fe700 (LWP 1486)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55662beef3dc) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55662beef318, cond=0x55662beef3b0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55662beef3b0, mutex=0x55662beef318) at pthread_cond_wait.c:638
#3  0x00007f0fc6b280ab in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f0fcc004d80 in ?? ()
#5  0x000055662e0d6648 in ?? ()
#6  0x00007f0fab7fdc00 in ?? ()
#7  0x00007f0fc6b0f7c1 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7f0fb6ffd700 (LWP 1480)):
#0  __GI___libc_write (nbytes=39, buf=0x7f0fb6ff9d50, fd=2) at ../sysdeps/unix/sysv/linux/write.c:26
#1  __GI___libc_write (fd=2, buf=0x7f0fb6ff9d50, nbytes=39) at ../sysdeps/unix/sysv/linux/write.c:24
#2  0x00007f101518b00d in _IO_new_file_write (f=0x7f10152e55c0 <_IO_2_1_stderr_>, data=0x7f0fb6ff9d50, n=39) at fileops.c:1176
#3  0x00007f101518b928 in new_do_write (to_do=<optimized out>, data=0x7f0fb6ff9d50 "[warn] epoll_wait: Bad file descriptor\n", fp=0x7f10152e55c0 <_IO_2_1_stderr_>) at libioP.h:948
#4  _IO_new_file_xsputn (n=39, data=<optimized out>, f=<optimized out>) at fileops.c:1255
#5  _IO_new_file_xsputn (f=0x7f10152e55c0 <_IO_2_1_stderr_>, data=<optimized out>, n=39) at fileops.c:1197
#6  0x00007f10151760d3 in buffered_vfprintf (s=s@entry=0x7f10152e55c0 <_IO_2_1_stderr_>, format=format@entry=0x7f0fe11fa258 "[%s] %s\n", args=args@entry=0x7f0fb6ffc310, mode_flags=mode_flags@entry=2) at ../libio/libioP.h:948
#7  0x00007f1015172ea4 in __vfprintf_internal (s=0x7f10152e55c0 <_IO_2_1_stderr_>, format=0x7f0fe11fa258 "[%s] %s\n", ap=ap@entry=0x7f0fb6ffc310, mode_flags=2) at vfprintf-internal.c:1346
#8  0x00007f101522a1b3 in ___fprintf_chk (fp=<optimized out>, flag=<optimized out>, format=<optimized out>) at fprintf_chk.c:33
#9  0x00007f0fe11e0b36 in event_logv_ () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#10 0x00007f0fe11e0d09 in event_warn () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#11 0x00007f0fe11e2768 in ?? () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#12 0x00007f0fe11d8625 in event_base_loop () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#13 0x00007f0fc6b377fc in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007f0fb6ffcb50 in ?? ()
#15 0x0001000000000000 in ?? ()
#16 0x00007f0fb6ffca20 in ?? ()
#17 0x00007f0fb6ffca18 in ?? ()
#18 0x00007f0fb6ffcad8 in ?? ()
#19 0x00007f0fb6ffcb50 in ?? ()
#20 0x00007f0fb6ffcbb0 in ?? ()
#21 0x00007f1015196419 in __GI___libc_malloc (bytes=139705471453792) at malloc.c:3066
#22 0x0000000000000001 in ?? ()
#23 0x7fffffffffffffff in ?? ()
#24 0x00007f0fb6ffcbb0 in ?? ()
#25 0x00007f0fb6ffca90 in ?? ()
#26 0x00007f0fc6aee69c in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#27 0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7f0fb7fff700 (LWP 1478)):
#0  __lll_lock_wait_private (futex=0x7f10152e74b0 <_IO_stdfile_2_lock>) at ./lowlevellock.c:35
#1  0x00007f10151761f6 in buffered_vfprintf (s=s@entry=0x7f10152e55c0 <_IO_2_1_stderr_>, format=format@entry=0x7f0fe11fa258 "[%s] %s\n", args=args@entry=0x7f0fb7ffe330, mode_flags=mode_flags@entry=2) at vfprintf-internal.c:2381
#2  0x00007f1015172ea4 in __vfprintf_internal (s=0x7f10152e55c0 <_IO_2_1_stderr_>, format=0x7f0fe11fa258 "[%s] %s\n", ap=ap@entry=0x7f0fb7ffe330, mode_flags=2) at vfprintf-internal.c:1346
#3  0x00007f101522a1b3 in ___fprintf_chk (fp=<optimized out>, flag=<optimized out>, format=<optimized out>) at fprintf_chk.c:33
#4  0x00007f0fe11e0b36 in event_logv_ () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#5  0x00007f0fe11e0d09 in event_warn () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#6  0x00007f0fe11e2768 in ?? () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#7  0x00007f0fe11d8625 in event_base_loop () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#8  0x00007f0fc6b377fc in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f0fac0025a0 in ?? ()
#10 0x0001000000000000 in ?? ()
#11 0x00007f0fb7ffea40 in ?? ()
#12 0x00007f0fb7ffea38 in ?? ()
#13 0x00007f0fb7ffeaf8 in ?? ()
#14 0x00000000405d9350 in ?? ()
#15 0x0000000000000437 in ?? ()
#16 0x00000000000d5790 in ?? ()
#17 0x00007f0fcbf62d20 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#18 0x000055662bd07d40 in ?? ()
#19 0x7fffffffffffffff in ?? ()
#20 0x0000000000000001 in ?? ()
#21 0x7fffffffffffffff in ?? ()
#22 0x00007f0fb7ffebb0 in ?? ()
#23 0x00007f0fb7ffeab0 in ?? ()
#24 0x00007f0fc6aee69c in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#25 0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f0fbcf36700 (LWP 1477)):
#0  0x00007f10151dedff in __GI___wait4 (pid=1474, stat_loc=0x7f0fbcf35bcc, options=0, usage=0x0) at ../sysdeps/unix/sysv/linux/wait4.c:27
#1  0x00007f0fc6b2760b in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f0fb8001db0 in ?? ()
#3  0x00007f0fb8001d20 in ?? ()
#4  0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f0fe291b700 (LWP 1467)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55662b129314) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55662b1292c0, cond=0x55662b1292e8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55662b1292e8, mutex=0x55662b1292c0) at pthread_cond_wait.c:638
#3  0x00007f10155a359b in QWaitConditionPrivate::wait (deadline=..., this=0x55662b1292c0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x7f0fdc004ff0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f10171fab44 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f10171fafb9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f101559d42c in QThreadPrivate::start (arg=0x7f0fdc004f50) at thread/qthread_unix.cpp:329
#8  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f0ff9830700 (LWP 1464)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:56
#1  0x00007f101520eae7 in __GI___poll (fds=0x7f0fdc0028a0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007f1013ac036e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1013ac04a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f10157de5eb in QEventDispatcherGlib::processEvents (this=0x7f0fdc005500, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f101578287b in QEventLoop::exec (this=this@entry=0x7f0ff982fba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f101559c292 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f10171353ba in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f101559d42c in QThreadPrivate::start (arg=0x55662badb030) at thread/qthread_unix.cpp:329
#9  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f10065ed700 (LWP 1388)):
#0  0x00007f101520eaff in __GI___poll (fds=0x7f0fe8004a60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f1013ac036e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1013ac04a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f10157de5eb in QEventDispatcherGlib::processEvents (this=0x7f0fe8000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f101578287b in QEventLoop::exec (this=this@entry=0x7f10065ecbc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f101559c292 in QThread::exec (this=this@entry=0x55662b272fe0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f1016daa549 in QQmlThreadPrivate::run (this=0x55662b272fe0) at qml/ftw/qqmlthread.cpp:155
#7  0x00007f101559d42c in QThreadPrivate::start (arg=0x55662b272fe0) at thread/qthread_unix.cpp:329
#8  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f10077fe700 (LWP 1363)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55662b0a0c98) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55662b0a0c48, cond=0x55662b0a0c70) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55662b0a0c70, mutex=0x55662b0a0c48) at pthread_cond_wait.c:638
#3  0x00007f100d63fe7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f100d63fa7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f1007fff700 (LWP 1362)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55662b0a0c98) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55662b0a0c48, cond=0x55662b0a0c70) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55662b0a0c70, mutex=0x55662b0a0c48) at pthread_cond_wait.c:638
#3  0x00007f100d63fe7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f100d63fa7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f100ca89700 (LWP 1361)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55662b0a0c98) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55662b0a0c48, cond=0x55662b0a0c70) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55662b0a0c70, mutex=0x55662b0a0c48) at pthread_cond_wait.c:638
#3  0x00007f100d63fe7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f100d63fa7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f100d28a700 (LWP 1360)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55662b0a0c98) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55662b0a0c48, cond=0x55662b0a0c70) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55662b0a0c70, mutex=0x55662b0a0c48) at pthread_cond_wait.c:638
#3  0x00007f100d63fe7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f100d63fa7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f100f936700 (LWP 1329)):
#0  0x00007f1013abf756 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f1013ac029b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1013ac04a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f10157de5eb in QEventDispatcherGlib::processEvents (this=0x7f1000000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f101578287b in QEventLoop::exec (this=this@entry=0x7f100f935bb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f101559c292 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f101610ff4b in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f101559d42c in QThreadPrivate::start (arg=0x7f1016193d80) at thread/qthread_unix.cpp:329
#8  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f101058f700 (LWP 1287)):
#0  0x00007f101520eaff in __GI___poll (fds=0x7f101058eae8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f1017900c1a in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f101790290a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f1010cc0e88 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f101559d42c in QThreadPrivate::start (arg=0x55662adad4e0) at thread/qthread_unix.cpp:329
#5  0x00007f10144f2609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f101521b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f101136e9c0 (LWP 1250)):
[KCrash Handler]
#4  0x00007f1016d5f02b in QQmlJavaScriptExpressionGuard_callback (e=<optimized out>) at qml/qqmljavascriptexpression.cpp:418
#5  0x00007f1016d3d65d in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:104
#6  0x00007f1016cdffcf in QQmlData::signalEmitted (object=0x55662be7e810, index=32, a=0x0) at qml/qqmlengine.cpp:834
#7  0x00007f10157ba925 in doActivate<false> (sender=0x55662be7e810, signal_index=32, argv=0x0) at kernel/qobject_p.h:110
#8  0x00007f10157bad9e in QtPrivate::QSlotObjectBase::call (a=0x7ffded4116a0, r=0x55662be7e810, this=0x55662be7f8b0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#9  doActivate<false> (sender=0x55662be5dad0, signal_index=3, argv=0x7ffded4116a0) at kernel/qobject.cpp:3886
#10 0x00007f101789c753 in ?? () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#11 0x00007f101789e378 in ?? () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#12 0x00007f10157badd0 in doActivate<false> (sender=0x55662be5d530, signal_index=3, argv=0x7ffded411810) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:395
#13 0x00007f10157bad9e in QtPrivate::QSlotObjectBase::call (a=0x7ffded4118f0, r=0x55662be5d530, this=0x55662be44180) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#14 doActivate<false> (sender=0x55662b1629f0, signal_index=3, argv=0x7ffded4118f0) at kernel/qobject.cpp:3886
#15 0x00007f10157bad9e in QtPrivate::QSlotObjectBase::call (a=0x7ffded411a30, r=0x55662b1629f0, this=0x55662b167f00) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#16 doActivate<false> (sender=0x55662b167ed0, signal_index=3, argv=0x7ffded411a30) at kernel/qobject.cpp:3886
#17 0x00007f10157b4167 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f1015a1fc80 <QTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffded411a30) at kernel/qobject.cpp:3946
#18 0x00007f10157bf8de in QTimer::timeout (this=<optimized out>, _t1=...) at .moc/moc_qtimer.cpp:205
#19 0x00007f10157b1835 in QObject::event (this=0x55662b167ed0, e=0x7ffded411d60) at kernel/qobject.cpp:1336
#20 0x00007f1016490dc3 in QApplicationPrivate::notify_helper (this=this@entry=0x55662ada96b0, receiver=receiver@entry=0x55662b167ed0, e=e@entry=0x7ffded411d60) at kernel/qapplication.cpp:3632
#21 0x00007f1016499bb8 in QApplication::notify (this=0x7ffded4120f0, receiver=0x55662b167ed0, e=0x7ffded411d60) at kernel/qapplication.cpp:3156
#22 0x00007f1015783d7a in QCoreApplication::notifyInternal2 (receiver=0x55662b167ed0, event=0x7ffded411d60) at ../../include/QtCore/5.15.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#23 0x00007f10157dd920 in QTimerInfoList::activateTimers (this=0x55662ae835c0) at kernel/qtimerinfo_unix.cpp:643
#24 0x00007f10157de20c in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:183
#25 0x00007f1013ac017d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f1013ac0400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f1013ac04a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f10157de5d2 in QEventDispatcherGlib::processEvents (this=0x55662ae83610, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#29 0x00007f101578287b in QEventLoop::exec (this=this@entry=0x7ffded411fa0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#30 0x00007f101578aa34 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#31 0x000055662aa1be08 in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:254
[Inferior 1 (process 1250) detached]

Possible duplicates by query: bug 442154, bug 441408, bug 441394, bug 441333, bug 440850.

Reported using DrKonqi