Created attachment 122704 [details]
discover_crash.txt

SUMMARY
When clicking on the "Applications" tab, Discover crashes.
 
STEPS TO REPRODUCE
1. Open Discover
2. Click on "Applications"

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE Neon.
(available in About System)
KDE Plasma Version: 5.16.5
KDE Frameworks Version: 5.62.0
Qt Version: 5.12.3

Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5c6fa67e00 (LWP 19394))]

Thread 10 (Thread 0x7f5bf0ffa700 (LWP 19445)):
#0  0x00007f5c6a6940b4 in __GI___libc_read (fd=55, buf=buf@entry=0x7f5bf0ff9ba0, nbytes=nbytes@entry=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f5c64b932d0 in read (__nbytes=16, __buf=0x7f5bf0ff9ba0, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x563e5b89c080) at ../../../../glib/gwakeup.c:210
#3  0x00007f5c64b4e0b7 in g_main_context_check (context=context@entry=0x7f5be4003a50, max_priority=2147483647, fds=fds@entry=0x7f5be4003d90, n_fds=n_fds@entry=1) at ../../../../glib/gmain.c:3680
#4  0x00007f5c64b4e570 in g_main_context_iterate (context=context@entry=0x7f5be4003a50, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3899
#5  0x00007f5c64b4e6dc in g_main_context_iteration (context=0x7f5be4003a50, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3963
#6  0x00007f5c64b4e721 in glib_worker_main (data=<optimized out>) at ../../../../glib/gmain.c:5772
#7  0x00007f5c64b76195 in g_thread_proxy (data=0x563e5b7598f0) at ../../../../glib/gthread.c:784
#8  0x00007f5c674306db in start_thread (arg=0x7f5bf0ffa700) at pthread_create.c:463
#9  0x00007f5c6a6a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f5bf3fff700 (LWP 19434)):
#0  0x00007f5c674369f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563e5c9fe0e4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x563e5c9fe090, cond=0x563e5c9fe0b8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x563e5c9fe0b8, mutex=0x563e5c9fe090) at pthread_cond_wait.c:655
#3  0x00007f5c6adacdbb in QWaitConditionPrivate::wait (deadline=..., this=0x563e5c9fe090) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x563e5cd7d650, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f5c6adad0c9 in QWaitCondition::wait (this=this@entry=0x563e5cd7d658, mutex=mutex@entry=0x563e5cd7d650, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f5c6e4436f8 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x563e5cd7d648) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x563e5cd7d5d0) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007f5c6e443b2a in QSGRenderThread::run (this=0x563e5cd7d5d0) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007f5c6ada5c72 in QThreadPrivate::start (arg=0x563e5cd7d5d0) at thread/qthread_unix.cpp:361
#10 0x00007f5c674306db in start_thread (arg=0x7f5bf3fff700) at pthread_create.c:463
#11 0x00007f5c6a6a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f5c24815700 (LWP 19421)):
#0  0x00007f5c6a6940b4 in __GI___libc_read (fd=45, buf=buf@entry=0x7f5c24814a50, nbytes=nbytes@entry=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f5c64b932d0 in read (__nbytes=16, __buf=0x7f5c24814a50, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x563e5b89c020) at ../../../../glib/gwakeup.c:210
#3  0x00007f5c64b4e0b7 in g_main_context_check (context=context@entry=0x7f5bf8000bf0, max_priority=2147483647, fds=fds@entry=0x7f5bf800afd0, n_fds=n_fds@entry=1) at ../../../../glib/gmain.c:3680
#4  0x00007f5c64b4e570 in g_main_context_iterate (context=context@entry=0x7f5bf8000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3899
#5  0x00007f5c64b4e6dc in g_main_context_iteration (context=0x7f5bf8000bf0, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3963
#6  0x00007f5c6afdbdcb in QEventDispatcherGlib::processEvents (this=0x7f5bf8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#7  0x00007f5c6af7d03a in QEventLoop::exec (this=this@entry=0x7f5c24814c60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#8  0x00007f5c6ada44ca in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#9  0x00007f5c6ada5c72 in QThreadPrivate::start (arg=0x563e5c6b2e90) at thread/qthread_unix.cpp:361
#10 0x00007f5c674306db in start_thread (arg=0x7f5c24815700) at pthread_create.c:463
#11 0x00007f5c6a6a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f5c36620700 (LWP 19401)):
#0  0x00007f5c64b94649 in g_mutex_lock (mutex=mutex@entry=0x7f5c28000bf0) at ../../../../glib/gthread-posix.c:1343
#1  0x00007f5c64b4dd11 in g_main_context_query (context=context@entry=0x7f5c28000bf0, max_priority=2147483647, timeout=timeout@entry=0x7f5c3661fb24, fds=fds@entry=0x7f5c28092200, n_fds=n_fds@entry=8) at ../../../../glib/gmain.c:3579
#2  0x00007f5c64b4e547 in g_main_context_iterate (context=context@entry=0x7f5c28000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3884
#3  0x00007f5c64b4e6dc in g_main_context_iteration (context=0x7f5c28000bf0, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3963
#4  0x00007f5c6afdbdcb in QEventDispatcherGlib::processEvents (this=0x7f5c28000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f5c6af7d03a in QEventLoop::exec (this=this@entry=0x7f5c3661fc60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f5c6ada44ca in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#7  0x00007f5c6ada5c72 in QThreadPrivate::start (arg=0x563e5c74e340) at thread/qthread_unix.cpp:361
#8  0x00007f5c674306db in start_thread (arg=0x7f5c36620700) at pthread_create.c:463
#9  0x00007f5c6a6a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f5c37c17700 (LWP 19400)):
#0  g_mutex_unlock (mutex=0x7f5c30000bf0) at ../../../../glib/gthread-posix.c:1357
#1  0x00007f5c64b4db18 in g_main_context_prepare (context=context@entry=0x7f5c30000bf0, priority=priority@entry=0x7f5c37c16b20) at ../../../../glib/gmain.c:3472
#2  0x00007f5c64b4e4fb in g_main_context_iterate (context=context@entry=0x7f5c30000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3882
#3  0x00007f5c64b4e6dc in g_main_context_iteration (context=0x7f5c30000bf0, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3963
#4  0x00007f5c6afdbdcb in QEventDispatcherGlib::processEvents (this=0x7f5c30000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f5c6af7d03a in QEventLoop::exec (this=this@entry=0x7f5c37c16c60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f5c6ada44ca in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#7  0x00007f5c6ada5c72 in QThreadPrivate::start (arg=0x563e5b2ad940) at thread/qthread_unix.cpp:361
#8  0x00007f5c674306db in start_thread (arg=0x7f5c37c17700) at pthread_create.c:463
#9  0x00007f5c6a6a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f5c41eab700 (LWP 19398)):
#0  0x00007f5c674369f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563e5af2953c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x563e5af294e8, cond=0x563e5af29510) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x563e5af29510, mutex=0x563e5af294e8) at pthread_cond_wait.c:655
#3  0x00007f5c432d00aa in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f5c432cfdd7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f5c674306db in start_thread (arg=0x7f5c41eab700) at pthread_create.c:463
#6  0x00007f5c6a6a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f5c518cb700 (LWP 19397)):
#0  0x00007f5c64b94649 in g_mutex_lock (mutex=mutex@entry=0x7f5c44000bf0) at ../../../../glib/gthread-posix.c:1343
#1  0x00007f5c64b4de1f in g_main_context_check (context=context@entry=0x7f5c44000bf0, max_priority=2147483647, fds=fds@entry=0x7f5c44004a00, n_fds=n_fds@entry=1) at ../../../../glib/gmain.c:3661
#2  0x00007f5c64b4e570 in g_main_context_iterate (context=context@entry=0x7f5c44000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3899
#3  0x00007f5c64b4e6dc in g_main_context_iteration (context=0x7f5c44000bf0, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3963
#4  0x00007f5c6afdbdcb in QEventDispatcherGlib::processEvents (this=0x7f5c44000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f5c6af7d03a in QEventLoop::exec (this=this@entry=0x7f5c518cac40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f5c6ada44ca in QThread::exec (this=this@entry=0x563e5ae78a60) at thread/qthread.cpp:531
#7  0x00007f5c6bd8f115 in QQmlThreadPrivate::run (this=0x563e5ae78a60) at qml/ftw/qqmlthread.cpp:148
#8  0x00007f5c6ada5c72 in QThreadPrivate::start (arg=0x563e5ae78a60) at thread/qthread_unix.cpp:361
#9  0x00007f5c674306db in start_thread (arg=0x7f5c518cb700) at pthread_create.c:463
#10 0x00007f5c6a6a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f5c52adc700 (LWP 19396)):
#0  socketNotifierSourcePrepare (timeout=timeout@entry=0x7f5c52adba64) at kernel/qeventdispatcher_glib.cpp:72
#1  0x00007f5c64b4db28 in g_main_context_prepare (context=context@entry=0x7f5c4c000bf0, priority=priority@entry=0x7f5c52adbaf0) at ../../../../glib/gmain.c:3474
#2  0x00007f5c64b4e4fb in g_main_context_iterate (context=context@entry=0x7f5c4c000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3882
#3  0x00007f5c64b4e6dc in g_main_context_iteration (context=0x7f5c4c000bf0, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3963
#4  0x00007f5c6afdbdcb in QEventDispatcherGlib::processEvents (this=0x7f5c4c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f5c6af7d03a in QEventLoop::exec (this=this@entry=0x7f5c52adbc30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f5c6ada44ca in QThread::exec (this=this@entry=0x7f5c6c3a4d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:531
#7  0x00007f5c6c12d015 in QDBusConnectionManager::run (this=0x7f5c6c3a4d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007f5c6ada5c72 in QThreadPrivate::start (arg=0x7f5c6c3a4d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:361
#9  0x00007f5c674306db in start_thread (arg=0x7f5c52adc700) at pthread_create.c:463
#10 0x00007f5c6a6a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f5c5a882700 (LWP 19395)):
#0  0x00007f5c6a698bf9 in __GI___poll (fds=fds@entry=0x7f5c5a881b68, nfds=nfds@entry=1, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f5c64283747 in poll (__timeout=-1, __nfds=1, __fds=0x7f5c5a881b68) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x563e5addd0b0, cond=cond@entry=0x563e5addd0f0, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:479
#3  0x00007f5c6428536a in xcb_wait_for_event (c=c@entry=0x563e5addd0b0) at ../../src/xcb_in.c:697
#4  0x00007f5c5d462578 in QXcbEventQueue::run (this=0x563e5ade8eb0) at qxcbeventqueue.cpp:228
#5  0x00007f5c6ada5c72 in QThreadPrivate::start (arg=0x563e5ade8eb0) at thread/qthread_unix.cpp:361
#6  0x00007f5c674306db in start_thread (arg=0x7f5c5a882700) at pthread_create.c:463
#7  0x00007f5c6a6a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f5c6fa67e00 (LWP 19394)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007f5c6bbba215 in QV4::Object::get (receiver=0x7ffd01d90be8, hasProperty=0x0, name=0x7ffd01d90bf0, this=0x7ffd01d90be8) at jsruntime/qv4object_p.h:308
#8  QV4::Lookup::getterProtoTwoClasses (l=<optimized out>, engine=<optimized out>, object=...) at jsruntime/qv4lookup.cpp:301
#9  0x00007f5c40a7e8ce in ?? ()
#10 0x0000000000000000 in ?? ()