Application: plasmashell (5.18.5)

Qt Version: 5.14.2
Frameworks Version: 5.70.0
Operating System: Linux 5.3.0-51-generic x86_64
Windowing system: X11
Distribution: KDE neon User Edition 5.18

-- Information about the crash:
- What I was doing when the application crashed: Plasma crashed after scrool any icon on desktop. This error been here after last update.

- Unusual behavior I noticed: Plasma crashed

- Custom settings of the application: Plasma crashed

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f35a9b2a840 (LWP 7359))]

Thread 10 (Thread 0x7f354ce1a700 (LWP 7378)):
#0  0x00007f35a2cb49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x564a9ddb9434) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x564a9ddb93e0, cond=0x564a9ddb9408) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x564a9ddb9408, mutex=0x564a9ddb93e0) at pthread_cond_wait.c:655
#3  0x00007f35a37441db in QWaitConditionPrivate::wait (deadline=..., this=0x564a9ddb93e0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x564a9db26190, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f35a3744359 in QWaitCondition::wait (this=this@entry=0x564a9db26198, mutex=mutex@entry=0x564a9db26190, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f35a7847233 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x564a9db26188) at scenegraph/qsgthreadedrenderloop.cpp:255
#7  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x564a9db260f0) at scenegraph/qsgthreadedrenderloop.cpp:905
#8  0x00007f35a7847691 in QSGRenderThread::run (this=0x564a9db260f0) at scenegraph/qsgthreadedrenderloop.cpp:1000
#9  0x00007f35a373dc2c in QThreadPrivate::start (arg=0x564a9db260f0) at thread/qthread_unix.cpp:342
#10 0x00007f35a2cae6db in start_thread (arg=0x7f354ce1a700) at pthread_create.c:463
#11 0x00007f35a2fe788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f356e883700 (LWP 7370)):
#0  0x00007f35a2cb49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x564a98b777b0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x564a98b77760, cond=0x564a98b77788) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x564a98b77788, mutex=0x564a98b77760) at pthread_cond_wait.c:655
#3  0x00007f35a37441db in QWaitConditionPrivate::wait (deadline=..., this=0x564a98b77760) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x564a9c0e1310, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f35a3744359 in QWaitCondition::wait (this=this@entry=0x564a9c0e1318, mutex=mutex@entry=0x564a9c0e1310, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f35a7847233 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x564a9c0e1308) at scenegraph/qsgthreadedrenderloop.cpp:255
#7  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x564a9c0e1270) at scenegraph/qsgthreadedrenderloop.cpp:905
#8  0x00007f35a7847691 in QSGRenderThread::run (this=0x564a9c0e1270) at scenegraph/qsgthreadedrenderloop.cpp:1000
#9  0x00007f35a373dc2c in QThreadPrivate::start (arg=0x564a9c0e1270) at thread/qthread_unix.cpp:342
#10 0x00007f35a2cae6db in start_thread (arg=0x7f356e883700) at pthread_create.c:463
#11 0x00007f35a2fe788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f356f094700 (LWP 7368)):
#0  0x00007f359cea5644 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f359ce5f169 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f359ce5f650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f359ce5f6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f35a398c7cb in QEventDispatcherGlib::processEvents (this=0x7f3564000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f35a392bd2a in QEventLoop::exec (this=this@entry=0x7f356f093cf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f35a373c757 in QThread::exec (this=this@entry=0x7f3580088140) at thread/qthread.cpp:536
#7  0x00007f35a7789b06 in QQuickPixmapReader::run (this=0x7f3580088140) at util/qquickpixmapcache.cpp:987
#8  0x00007f35a373dc2c in QThreadPrivate::start (arg=0x7f3580088140) at thread/qthread_unix.cpp:342
#9  0x00007f35a2cae6db in start_thread (arg=0x7f356f094700) at pthread_create.c:463
#10 0x00007f35a2fe788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f356f91b700 (LWP 7366)):
#0  0x00007f35a2cb49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x564a995e4ef0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x564a995e4ea0, cond=0x564a995e4ec8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x564a995e4ec8, mutex=0x564a995e4ea0) at pthread_cond_wait.c:655
#3  0x00007f35a37441db in QWaitConditionPrivate::wait (deadline=..., this=0x564a995e4ea0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x564a995d14f0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f35a3744359 in QWaitCondition::wait (this=this@entry=0x564a995d14f8, mutex=mutex@entry=0x564a995d14f0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f35a7847233 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x564a995d14e8) at scenegraph/qsgthreadedrenderloop.cpp:255
#7  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x564a995d1450) at scenegraph/qsgthreadedrenderloop.cpp:905
#8  0x00007f35a7847691 in QSGRenderThread::run (this=0x564a995d1450) at scenegraph/qsgthreadedrenderloop.cpp:1000
#9  0x00007f35a373dc2c in QThreadPrivate::start (arg=0x564a995d1450) at thread/qthread_unix.cpp:342
#10 0x00007f35a2cae6db in start_thread (arg=0x7f356f91b700) at pthread_create.c:463
#11 0x00007f35a2fe788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f35701b6700 (LWP 7365)):
#0  0x00007f35a2cb49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x564a995eb304) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x564a995eb2b0, cond=0x564a995eb2d8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x564a995eb2d8, mutex=0x564a995eb2b0) at pthread_cond_wait.c:655
#3  0x00007f35a37441db in QWaitConditionPrivate::wait (deadline=..., this=0x564a995eb2b0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x564a995eed40, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f35a3744359 in QWaitCondition::wait (this=this@entry=0x564a995eed48, mutex=mutex@entry=0x564a995eed40, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f35a7847233 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x564a995eed38) at scenegraph/qsgthreadedrenderloop.cpp:255
#7  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x564a995eeca0) at scenegraph/qsgthreadedrenderloop.cpp:905
#8  0x00007f35a7847691 in QSGRenderThread::run (this=0x564a995eeca0) at scenegraph/qsgthreadedrenderloop.cpp:1000
#9  0x00007f35a373dc2c in QThreadPrivate::start (arg=0x564a995eeca0) at thread/qthread_unix.cpp:342
#10 0x00007f35a2cae6db in start_thread (arg=0x7f35701b6700) at pthread_create.c:463
#11 0x00007f35a2fe788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f357e3cf700 (LWP 7364)):
#0  0x00007f35a2cb49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x564a98e087ac) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x564a98e08758, cond=0x564a98e08780) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x564a98e08780, mutex=0x564a98e08758) at pthread_cond_wait.c:655
#3  0x00007f357f63decb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f357f63dac7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f35a2cae6db in start_thread (arg=0x7f357e3cf700) at pthread_create.c:463
#6  0x00007f35a2fe788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f358bfff700 (LWP 7363)):
#0  0x00007f35a2fdabf9 in __GI___poll (fds=0x7f35800029e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f359ce5f5c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f359ce5f6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f35a398c7cb in QEventDispatcherGlib::processEvents (this=0x7f3580000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f35a392bd2a in QEventLoop::exec (this=this@entry=0x7f358bffed40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f35a373c757 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#6  0x00007f35a72f3fc5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f35a373dc2c in QThreadPrivate::start (arg=0x564a98c96fb0) at thread/qthread_unix.cpp:342
#8  0x00007f35a2cae6db in start_thread (arg=0x7f358bfff700) at pthread_create.c:463
#9  0x00007f35a2fe788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f35922d4700 (LWP 7361)):
#0  0x00007f35a2fd60b4 in __GI___libc_read (fd=7, buf=0x7f35922d3b20, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f359cea42b0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f359ce5f0b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f359ce5f570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f359ce5f6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f35a398c7cb in QEventDispatcherGlib::processEvents (this=0x7f3584000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f35a392bd2a in QEventLoop::exec (this=this@entry=0x7f35922d3d30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007f35a373c757 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#8  0x00007f35a563a555 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f35a373dc2c in QThreadPrivate::start (arg=0x7f35a58b2da0) at thread/qthread_unix.cpp:342
#10 0x00007f35a2cae6db in start_thread (arg=0x7f35922d4700) at pthread_create.c:463
#11 0x00007f35a2fe788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f35946ce700 (LWP 7360)):
#0  0x00007f35a2fdabf9 in __GI___poll (fds=0x7f35946cdc68, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f35a8459747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f35a845b36a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f3596e8ffd0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f35a373dc2c in QThreadPrivate::start (arg=0x564a98accbc0) at thread/qthread_unix.cpp:342
#5  0x00007f35a2cae6db in start_thread (arg=0x7f35946ce700) at pthread_create.c:463
#6  0x00007f35a2fe788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f35a9b2a840 (LWP 7359)):
[KCrash Handler]
#4  QHashData::nextNode (node=node@entry=0x564a9d9d6210) at tools/qhash.cpp:591
#5  0x00007f35710f8b27 in QHash<int, int>::const_iterator::operator++ (this=<synthetic pointer>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qhash.h:411
#6  QHash<int, int>::keys (this=0x564a992ac930) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qhash.h:686
#7  0x00007f35710f530b in Positioner::lastRow (this=<optimized out>) at ./containments/desktop/plugins/folder/positioner.cpp:755
#8  0x00007f35710f5479 in Positioner::lastRow (this=<optimized out>) at ./containments/desktop/plugins/folder/positioner.cpp:325
#9  Positioner::rowCount (this=<optimized out>, parent=...) at ./containments/desktop/plugins/folder/positioner.cpp:331
#10 0x00007f35710f3d70 in Positioner::updatePositions (this=0x564a992ac8e0) at ./containments/desktop/plugins/folder/positioner.cpp:459
#11 0x00007f35a39686d7 in QtPrivate::QSlotObjectBase::call (a=0x7ffd0b751970, r=0x564a992ac8e0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#12 doActivate<false> (sender=0x564a99267a60, signal_index=3, argv=0x7ffd0b751970) at kernel/qobject.cpp:3870
#13 0x00007f35a3962f92 in QMetaObject::activate (sender=sender@entry=0x564a99267a60, m=m@entry=0x7f35a3dfbce0 <QTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd0b751970) at kernel/qobject.cpp:3930
#14 0x00007f35a396c297 in QTimer::timeout (this=this@entry=0x564a99267a60, _t1=...) at .moc/moc_qtimer.cpp:205
#15 0x00007f35a396c5f8 in QTimer::timerEvent (this=0x564a99267a60, e=<optimized out>) at kernel/qtimer.cpp:257
#16 0x00007f35a39604e3 in QObject::event (this=0x564a99267a60, e=0x7ffd0b751cd0) at kernel/qobject.cpp:1361
#17 0x00007f35a4c719ac in QApplicationPrivate::notify_helper (this=this@entry=0x564a98abc790, receiver=receiver@entry=0x564a99267a60, e=e@entry=0x7ffd0b751cd0) at kernel/qapplication.cpp:3685
#18 0x00007f35a4c78bb0 in QApplication::notify (this=0x7ffd0b752070, receiver=0x564a99267a60, e=0x7ffd0b751cd0) at kernel/qapplication.cpp:3431
#19 0x00007f35a392d4a8 in QCoreApplication::notifyInternal2 (receiver=0x564a99267a60, event=0x7ffd0b751cd0) at kernel/qcoreapplication.cpp:1075
#20 0x00007f35a398bc39 in QTimerInfoList::activateTimers (this=0x564a98b1bcf0) at kernel/qtimerinfo_unix.cpp:643
#21 0x00007f35a398c401 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:183
#22 0x00007f359ce5f417 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f359ce5f650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f359ce5f6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f35a398c7ac in QEventDispatcherGlib::processEvents (this=0x564a98b1b740, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#26 0x00007f35a392bd2a in QEventLoop::exec (this=this@entry=0x7ffd0b751f20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#27 0x00007f35a39354a0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1383
#28 0x0000564a97e61894 in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:228
[Inferior 1 (process 7359) detached]

Reported using DrKonqi