Application: plasmashell (5.12.3)

Qt Version: 5.10.1
Frameworks Version: 5.43.0
Operating System: Linux 4.15.7-1-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
- What I was doing when the application crashed:
Laptop had been sitting for a while idle on the lock screen.
After returning to the laptop, I ran some (unrelated) commands in an already open command prompt, and then launched gparted from the application launch menu.

Specifically how I launched gparted (in case its relevant):
- used my mouse to click the icon on the bottom left of my taskbar where the KDE menu widget is located, clicked once with the left mouse button.
- used my keyboard to type in some variant of an incorrect application name (I momentarily forgot what I was trying to run)
- hit backspace enough times to erase it, likely by holding down the key for a few seconds
- Typed "gparted", or some rough subset of that text
- used my mouse to click once on the gparted icon from the list.
** at this point is where it crashed.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f6fce885800 (LWP 600))]

Thread 19 (Thread 0x7f6ec97fa700 (LWP 28368)):
#0  0x00007f6fc758d3bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f6fc83e102c in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f6efe9c642f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f6efe9cb479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f6efe9cb4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f6efe9c8c83 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f6ec9ffb700 (LWP 28367)):
#0  0x00007f6fc758d3bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f6fc83e102c in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f6efe9c642f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f6efe9cb479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f6efe9cb4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f6efe9c8c83 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f6eca7fc700 (LWP 28366)):
#0  0x00007f6fc758d3bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f6fc83e102c in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f6efe9c642f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f6efe9cb479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f6efe9cb4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f6efe9c8c83 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f6ecaffd700 (LWP 28365)):
#0  0x00007f6fc758d3bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f6fc83e102c in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f6efe9c642f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f6efe9cb479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f6efe9cb4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f6efe9c8c83 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f6ecb7fe700 (LWP 28364)):
#0  0x00007f6fc758d3bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f6fc83e102c in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f6efe9c642f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f6efe9cb479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f6efe9cb4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f6efe9c8c83 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f6ecbfff700 (LWP 28363)):
[KCrash Handler]
#5  0x00007f6fc8612a60 in QVariant::QVariant(QVariant const&) () at /usr/lib/libQt5Core.so.5
#6  0x00007f6ed68e52cc in  () at /usr/lib/qt/plugins/sqldrivers/libqsqlite.so
#7  0x00007f6ed68e2ae6 in  () at /usr/lib/qt/plugins/sqldrivers/libqsqlite.so
#8  0x00007f6fc6369938 in QSqlQuery::exec() () at /usr/lib/libQt5Sql.so.5
#9  0x00007f6ed17ff761 in  () at /usr/lib/qt/plugins/krunner_bookmarksrunner.so
#10 0x00007f6ed17fff0a in  () at /usr/lib/qt/plugins/krunner_bookmarksrunner.so
#11 0x00007f6ed17fa972 in  () at /usr/lib/qt/plugins/krunner_bookmarksrunner.so
#12 0x00007f6ed17f81b5 in  () at /usr/lib/qt/plugins/krunner_bookmarksrunner.so
#13 0x00007f6ed1803064 in  () at /usr/lib/qt/plugins/krunner_bookmarksrunner.so
#14 0x00007f6f08a057f0 in Plasma::AbstractRunner::performMatch(Plasma::RunnerContext&) () at /usr/lib/libKF5Runner.so.5
#15 0x00007f6efe9ca618 in ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib/libKF5ThreadWeaver.so.5
#16 0x00007f6efe9c9610 in ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib/libKF5ThreadWeaver.so.5
#17 0x00007f6efe9c8d45 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#18 0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#19 0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#20 0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f6ed0bde700 (LWP 28362)):
#0  0x00007f6fc758d3bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f6fc83e102c in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f6efe9c642f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f6efe9cb479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f6efe9cb4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f6efe9c8c83 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f6ed13df700 (LWP 28361)):
#0  0x00007f6fc758d3bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f6fc83e102c in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f6efe9c642f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f6efe9cb479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f6efe9cb4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f6efe9cb4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f6efe9c5924 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f6efe9c8c83 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#11 0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f6eebfff700 (LWP 1228)):
#0  0x00007f6fc24ffe87 in  () at /usr/lib/libglib-2.0.so.0
#1  0x00007f6fc2502901 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6fc2502f96 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f6fc250310e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f6fc8629314 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f6fc85cb3db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f6fc83da7ae in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f6ef163f700 (LWP 1227)):
#0  0x00007f6fc2549b79 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f6fc2501e62 in g_main_context_acquire () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6fc2502ea7 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f6fc250310e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f6fc8629314 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f6fc85cb3db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f6fc83da7ae in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f6ef40281ba in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#8  0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f6f0a437700 (LWP 1060)):
#0  0x00007f6fc7cdb97b in poll () at /usr/lib/libc.so.6
#1  0x00007f6fc2502ff3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6fc250310e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f6fc8629314 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f6fc85cb3db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f6fc83da7ae in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f6fcc1e850b in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f6f13c2f700 (LWP 994)):
#0  0x00007f6fc758d3bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f6fa148efbc in  () at /usr/lib/dri/r600_dri.so
#2  0x00007f6fa148eec8 in  () at /usr/lib/dri/r600_dri.so
#3  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f6f18577700 (LWP 993)):
#0  0x00007f6fc758d3bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f6fa148efbc in  () at /usr/lib/dri/r600_dri.so
#2  0x00007f6fa148eec8 in  () at /usr/lib/dri/r600_dri.so
#3  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f6fa3bdf700 (LWP 992)):
#0  0x00007f6fc758d3bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f6fcdf65f77 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f6fcdf65fb9 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f6fadd27700 (LWP 984)):
#0  0x00007f6fc2549b94 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f6fc2502b8b in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6fc2503081 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f6fc250310e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f6fc8629314 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f6fc85cb3db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f6fc83da7ae in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f6fcb620379 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f6fafbef700 (LWP 739)):
#0  0x00007f6fc2549b94 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f6fc2502b8b in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6fc2503081 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f6fc250310e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f6fc8629314 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f6fc85cb3db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f6fc83da7ae in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f6fcb620379 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f6fb57ef700 (LWP 639)):
#0  0x00007f6fc7cd73d8 in read () at /usr/lib/libc.so.6
#1  0x00007f6fc25487d1 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6fc2502ac8 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f6fc2502f96 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f6fc250310e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f6fc8629314 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f6fc85cb3db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f6fc83da7ae in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f6fc8a4c416 in  () at /usr/lib/libQt5DBus.so.5
#9  0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f6fb7e87700 (LWP 627)):
#0  0x00007f6fc7cdb97b in poll () at /usr/lib/libc.so.6
#1  0x00007f6fcce448e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f6fcce46679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f6fba64582a in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f6fc83dfb4d in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f6fc758708c in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f6fc7ce5e7f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f6fce885800 (LWP 600)):
#0  0x00007f6fc758d3bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f6fcce44b57 in  () at /usr/lib/libxcb.so.1
#2  0x00007f6fcce4639f in  () at /usr/lib/libxcb.so.1
#3  0x00007f6fcce46511 in xcb_wait_for_reply64 () at /usr/lib/libxcb.so.1
#4  0x00007f6fcd0aa4d8 in _XReply () at /usr/lib/libX11.so.6
#5  0x00007f6fbf55a27a in XSyncQueryCounter () at /usr/lib/libXext.so.6
#6  0x00007f6ef44db1d5 in  () at /usr/lib/qt/plugins/kf5/org.kde.kidletime.platforms/KF5IdleTimeXcbPlugin0.so
#7  0x00007f6ef4d905be in  () at /usr/lib/qt/plugins/plasma/dataengine/plasma_engine_powermanagement.so
#8  0x00007f6fcc9aab39 in  () at /usr/lib/libKF5Plasma.so.5
#9  0x00007f6fcc9afb10 in  () at /usr/lib/libKF5Plasma.so.5
#10 0x00007f6fc85fd6c6 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#11 0x00007f6fcc9a3983 in Plasma::DataContainer::updateRequested(Plasma::DataContainer*) () at /usr/lib/libKF5Plasma.so.5
#12 0x00007f6fcc9c2e49 in  () at /usr/lib/libKF5Plasma.so.5
#13 0x00007f6fc85fe0cb in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#14 0x00007f6fc95e1fec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#15 0x00007f6fc95e99c6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#16 0x00007f6fc85ccda0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#17 0x00007f6fc8628738 in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#18 0x00007f6fc8628f32 in  () at /usr/lib/libQt5Core.so.5
#19 0x00007f6fc2502e38 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#20 0x00007f6fc2503081 in  () at /usr/lib/libglib-2.0.so.0
#21 0x00007f6fc250310e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#22 0x00007f6fc86292f1 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#23 0x00007f6fba6cd482 in  () at /usr/lib/libQt5XcbQpa.so.5
#24 0x00007f6fc85cb3db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#25 0x00007f6fc85d47d8 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#26 0x000055829e74c743 in  ()
#27 0x00007f6fc7c10f4a in __libc_start_main () at /usr/lib/libc.so.6
#28 0x000055829e74cafa in _start ()

Reported using DrKonqi