Hello! Recently, Plasma began to hang periodically (about 1 time in 20 minutes). During the freeze, the GUI is not updated, although other functions (such as a music player) work in the background normally. Just after the next hang, a message appeared suggesting that the error log be saved (such a message did not appear before), so I saved the log and decided to post it here. Previously, the interface hung literally for 20-30 seconds and then it started working again and a notification appeared that Plasma was restarted due to a critical failure. Help me please!!!
P.S. Sorry for my bad English... I from Ukraine
Crash report:

Code: Select all

Application: plasmashell (5.18.1)

Qt Version: 5.14.1
Frameworks Version: 5.67.0
Operating System: Linux 5.5.5-zen1-1-zen x86_64
Windowing system: X11
Distribution: Arch Linux

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f18a6234840 (LWP 677))]

Thread 23 (Thread 0x7f1844e37700 (LWP 19578)):
#0  0x00007f18aa53babf in poll () at /usr/lib/libc.so.6
#1  0x00007f18a8ddd240 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f18a8dde263 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#3  0x00007f187b6a8bc8 in  () at /usr/lib/libgio-2.0.so.0
#4  0x00007f18a8db9b81 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 22 (Thread 0x7f1846f04700 (LWP 19577)):
#0  0x00007f18a8d8d479 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f18a8ddd209 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f18a8ddd311 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f18a8ddd362 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f18a8db9b81 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7f18477fe700 (LWP 14578)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f18aa8c5cb4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f18aa8c5d92 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f18ac62256b in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f18ac6227fb in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7f1847fff700 (LWP 9797)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f18aa8c5cb4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f18aa8c5d92 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f18ac62256b in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f18ac6227fb in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7f184d80b700 (LWP 3851)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f18aa8c5cb4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f18aa8c5d92 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f189020d289 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f1890210d1b in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f189020c47e in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f1890210d71 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f189020c47e in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f189020ee5c in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f184e00c700 (LWP 3850)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f18aa8c5cb4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f18aa8c5d92 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f189020d289 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f1890210d1b in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f189020c47e in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f1890210d71 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f189020c47e in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f189020ee5c in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f184e80d700 (LWP 3849)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f18aa8c5cb4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f18aa8c5d92 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f189020d289 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f1890210d1b in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f189020c47e in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f189020ee5c in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f184ffff700 (LWP 3848)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f18aa8c5cb4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f18aa8c5d92 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f189020d289 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f1890210d1b in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f189020c47e in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f1890210d71 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f189020c47e in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f189020ee5c in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f184f7fe700 (LWP 3063)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f18aa8c5cb4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f18aa8c5d92 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f18ac62256b in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f18ac6227fb in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f186e7cc700 (LWP 2026)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f18aa8c5cb4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f18aa8c5d92 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f18ac62256b in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f18ac6227fb in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f186dddb700 (LWP 1198)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f18aa8c5cb4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f18aa8c5d92 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f18ac62256b in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f18ac6227fb in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f186ff1b700 (LWP 1001)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f18aa8c5cb4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f18aa8c5d92 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f18ac62256b in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f18ac6227fb in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f18798e7700 (LWP 986)):
#0  0x00007f18aa53babf in poll () at /usr/lib/libc.so.6
#1  0x00007f18a8ddd240 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f18a8ddd311 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f18aaaf403c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f18aaa9a4cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f18aa8bee52 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f1879df316b in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#7  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f187bfff700 (LWP 822)):
#0  0x00007f18aa53babf in poll () at /usr/lib/libc.so.6
#1  0x00007f18a8ddd240 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f18a8ddd311 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f18aaaf403c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f18aaa9a4cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f18aa8bee52 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f18ac55ceab in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f1891025700 (LWP 817)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f18aa8c5cb4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f18aa8c5d92 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f18ac62256b in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f18ac6227fb in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f1892ffd700 (LWP 789)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f189d61287c in  () at /usr/lib/dri/i965_dri.so
#2  0x00007f189d612478 in  () at /usr/lib/dri/i965_dri.so
#3  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f18937fe700 (LWP 788)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f189d61287c in  () at /usr/lib/dri/i965_dri.so
#2  0x00007f189d612478 in  () at /usr/lib/dri/i965_dri.so
#3  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f1893fff700 (LWP 787)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f189d61287c in  () at /usr/lib/dri/i965_dri.so
#2  0x00007f189d612478 in  () at /usr/lib/dri/i965_dri.so
#3  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f189cf6d700 (LWP 786)):
#0  0x00007f18a9d05cf5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f189d61287c in  () at /usr/lib/dri/i965_dri.so
#2  0x00007f189d612478 in  () at /usr/lib/dri/i965_dri.so
#3  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f189f5b3700 (LWP 770)):
#0  0x00007f18aa53bace in poll () at /usr/lib/libc.so.6
#1  0x00007f18a8ddd240 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f18a8ddd311 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f18aaaf403c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f18aaa9a4cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f18aa8bee52 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f18ac2baf89 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f18a485d700 (LWP 726)):
#0  0x00007f18aa50e19e in clock_gettime@GLIBC_2.2.5 () at /usr/lib/libc.so.6
#1  0x00007f18aaaf3922 in  () at /usr/lib/libQt5Core.so.5
#2  0x00007f18aaaf220a in QTimerInfoList::updateCurrentTime() () at /usr/lib/libQt5Core.so.5
#3  0x00007f18aaaf27d6 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/libQt5Core.so.5
#4  0x00007f18aaaf3d7f in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f18a8ddcb20 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#6  0x00007f18a8ddd166 in  () at /usr/lib/libglib-2.0.so.0
#7  0x00007f18a8ddd311 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#8  0x00007f18aaaf403c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#9  0x00007f18aaa9a4cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#10 0x00007f18aa8bee52 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#11 0x00007f18abb96b28 in  () at /usr/lib/libQt5DBus.so.5
#12 0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#13 0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f18a5460700 (LWP 720)):
#0  0x00007f18aa53babf in poll () at /usr/lib/libc.so.6
#1  0x00007f18aca6963b in  () at /usr/lib/libxcb.so.1
#2  0x00007f18aca6b37b in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f18a5e0bb81 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f18aa8bffc6 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f18a9cff46f in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f18aa5463d3 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f18a6234840 (LWP 677)):
[KCrash Handler]
#6  0x00007f18789a6026 in KCModuleProxy::realModule() const () at /usr/lib/libKF5KCMUtils.so.5
#7  0x00007f18789a65aa in KCModuleProxy::buttons() const () at /usr/lib/libKF5KCMUtils.so.5
#8  0x00007f18789a3879 in  () at /usr/lib/libKF5KCMUtils.so.5
#9  0x00007f18789a454d in  () at /usr/lib/libKF5KCMUtils.so.5
#10 0x00007f18aaad14a0 in  () at /usr/lib/libQt5Core.so.5
#11 0x00007f18a9aafa9c in KPageDialog::currentPageChanged(KPageWidgetItem*, KPageWidgetItem*) () at /usr/lib/libKF5WidgetsAddons.so.5
#12 0x00007f18aaad146e in  () at /usr/lib/libQt5Core.so.5
#13 0x00007f18a9b3f9dc in KPageWidget::currentPageChanged(KPageWidgetItem*, KPageWidgetItem*) () at /usr/lib/libKF5WidgetsAddons.so.5
#14 0x00007f18a9b3fbd6 in  () at /usr/lib/libKF5WidgetsAddons.so.5
#15 0x00007f18aaad14a0 in  () at /usr/lib/libQt5Core.so.5
#16 0x00007f18a9b39748 in KPageView::currentPageChanged(QModelIndex const&, QModelIndex const&) () at /usr/lib/libKF5WidgetsAddons.so.5
#17 0x00007f18a9b3b191 in  () at /usr/lib/libKF5WidgetsAddons.so.5
#18 0x00007f18aaad14a0 in  () at /usr/lib/libQt5Core.so.5
#19 0x00007f18aaa4cf41 in QItemSelectionModel::selectionChanged(QItemSelection const&, QItemSelection const&) () at /usr/lib/libQt5Core.so.5
#20 0x00007f18aaa526bd in QItemSelectionModel::emitSelectionChanged(QItemSelection const&, QItemSelection const&) () at /usr/lib/libQt5Core.so.5
#21 0x00007f18aaa55df5 in QItemSelectionModel::select(QItemSelection const&, QFlags<QItemSelectionModel::SelectionFlag>) () at /usr/lib/libQt5Core.so.5
#22 0x00007f18ab84a114 in QListView::setSelection(QRect const&, QFlags<QItemSelectionModel::SelectionFlag>) () at /usr/lib/libQt5Widgets.so.5
#23 0x00007f18ab80ca8c in QAbstractItemView::mousePressEvent(QMouseEvent*) () at /usr/lib/libQt5Widgets.so.5
#24 0x00007f18ab5d64f9 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#25 0x00007f18ab687f3f in QFrame::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#26 0x00007f18ab812ae0 in QAbstractItemView::viewportEvent(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#27 0x00007f18aaa9b673 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#28 0x00007f18ab592351 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#29 0x00007f18ab59ba68 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#30 0x00007f18aaa9b962 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#31 0x00007f18ab59aafb in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () at /usr/lib/libQt5Widgets.so.5
#32 0x00007f18ab5f1c91 in  () at /usr/lib/libQt5Widgets.so.5
#33 0x00007f18ab5f4c14 in  () at /usr/lib/libQt5Widgets.so.5
#34 0x00007f18ab592362 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#35 0x00007f18ab59b819 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#36 0x00007f18aaa9b962 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#37 0x00007f18aae645d4 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/libQt5Gui.so.5
#38 0x00007f18aae65d16 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#39 0x00007f18aae3ec2c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#40 0x00007f18a5e0cbac in  () at /usr/lib/libQt5XcbQpa.so.5
#41 0x00007f18a8ddb51e in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#42 0x00007f18a8ddd2d1 in  () at /usr/lib/libglib-2.0.so.0
#43 0x00007f18a8ddd311 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#44 0x00007f18aaaf4020 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#45 0x00007f18aaa9a4cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#46 0x00007f18aaaa24d6 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#47 0x0000562518d08018 in  ()
#48 0x00007f18aa46e023 in __libc_start_main () at /usr/lib/libc.so.6
#49 0x0000562518d0823e in _start ()
[Inferior 1 (process 677) detached]

Report to https://bugs.kde.org/

The forum is the wrong place for bug reports, please report this on https://bugs.kde.org, and make sure to install debugging symbols beforehand:

https://community.kde.org/Guidelines_an ... sh_reports

FWIW: since you are using Arch, you will have to recompile Plasma and its dependencies with debugging enabled, else the crash report is useless. So maybe asking the Arch guys about the problem first is a good idea...