Application: plasmashell (5.11.3)

Qt Version: 5.9.3
Frameworks Version: 5.40.0
Operating System: Linux 4.9.64-1-lts x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
plasma crashed while I had a window opened (okular) 
- Custom settings of the application:
  I'm using the air-theme, with oxygen icons, excalibur menu from store.kde.org as a menu 
  Error happens in X11 and Wayland

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0b59624500 (LWP 8182))]

Thread 14 (Thread 0x7f0a5e198700 (LWP 8486)):
#0  0x00007f0b524ea38d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f0b5332d3ac in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f0b570ca0ba in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f0b570ca544 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f0b5332bf1b in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f0b524e408a in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f0b52c3747f in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f0a5e9a3700 (LWP 8485)):
#0  0x00007f0b52c2cf7b in poll () at /usr/lib/libc.so.6
#1  0x00007f0b47e17773 in  () at /usr/lib/libpulse.so.0
#2  0x00007f0b47e08bd0 in pa_mainloop_poll () at /usr/lib/libpulse.so.0
#3  0x00007f0b47e09271 in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#4  0x00007f0b47e09301 in pa_mainloop_run () at /usr/lib/libpulse.so.0
#5  0x00007f0b47e176ae in  () at /usr/lib/libpulse.so.0
#6  0x00007f0b475a532c in  () at /usr/lib/pulseaudio/libpulsecommon-11.1.so
#7  0x00007f0b524e408a in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f0b52c3747f in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f0a5ffd1700 (LWP 8483)):
#0  0x00007ffd1b730a92 in clock_gettime ()
#1  0x00007f0b52c44d26 in clock_gettime () at /usr/lib/libc.so.6
#2  0x00007f0b5356a842 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f0b53568fda in QTimerInfoList::updateCurrentTime() () at /usr/lib/libQt5Core.so.5
#4  0x00007f0b535695b6 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/libQt5Core.so.5
#5  0x00007f0b5356ac9f in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f0b4d76c771 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#7  0x00007f0b4d76cdf6 in  () at /usr/lib/libglib-2.0.so.0
#8  0x00007f0b4d76cfae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#9  0x00007f0b5356af54 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#10 0x00007f0b5350e6eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#11 0x00007f0b53326fce in QThread::exec() () at /usr/lib/libQt5Core.so.5
#12 0x00007f0b5649bcf9 in  () at /usr/lib/libQt5Qml.so.5
#13 0x00007f0b5332bf1b in  () at /usr/lib/libQt5Core.so.5
#14 0x00007f0b524e408a in start_thread () at /usr/lib/libpthread.so.0
#15 0x00007f0b52c3747f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f0a78997700 (LWP 8479)):
#0  0x00007f0b524ea38d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f0b5332d3ac in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f0b570ca0ba in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f0b570ca544 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f0b5332bf1b in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f0b524e408a in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f0b52c3747f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f0a7a025700 (LWP 8476)):
#0  0x00007f0b524ea38d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f0b5332d3ac in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f0b570ca0ba in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f0b570ca544 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f0b5332bf1b in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f0b524e408a in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f0b52c3747f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f0a7aa26700 (LWP 8475)):
#0  0x00007f0b524ea38d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f0b5332d3ac in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f0b570ca0ba in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f0b570ca544 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f0b5332bf1b in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f0b524e408a in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f0b52c3747f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f0a844d0700 (LWP 8471)):
#0  0x00007f0b52c2cf7b in poll () at /usr/lib/libc.so.6
#1  0x00007f0b4d76ced3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f0b4d76cfae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f0b5356af54 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f0b5350e6eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f0b53326fce in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f0a86e6f1aa in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#7  0x00007f0b5332bf1b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f0b524e408a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f0b52c3747f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f0aa1b16700 (LWP 8307)):
#0  0x00007f0b524ea38d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f0b5332d3ac in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f0b570ca0ba in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f0b570ca544 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f0b5332bf1b in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f0b524e408a in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f0b52c3747f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f0aa40b7700 (LWP 8304)):
#0  0x00007f0b52c28a98 in read () at /usr/lib/libc.so.6
#1  0x00007f0b4d794521 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f0b4d76b90b in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f0b4d76ce76 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f0b4d76cfae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f0b5356af54 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f0b5350e6eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f0b53326fce in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f0b57048c1b in  () at /usr/lib/libQt5Quick.so.5
#9  0x00007f0b5332bf1b in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f0b524e408a in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f0b52c3747f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f0b3934d700 (LWP 8285)):
#0  0x00007f0b524ea38d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f0b58d71ef7 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f0b58d71f39 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f0b524e408a in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f0b52c3747f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f0b3bfff700 (LWP 8226)):
#0  0x00007f0b52c2cf7b in poll () at /usr/lib/libc.so.6
#1  0x00007f0b4d76ced3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f0b4d76cfae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f0b5356af54 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f0b5350e6eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f0b53326fce in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f0b5649bcf9 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f0b5332bf1b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f0b524e408a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f0b52c3747f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f0b420f6700 (LWP 8222)):
#0  0x00007f0b52c2cf7b in poll () at /usr/lib/libc.so.6
#1  0x00007f0b4d76ced3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f0b4d76cfae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f0b5356af54 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f0b5350e6eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f0b53326fce in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f0b5649bcf9 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f0b5332bf1b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f0b524e408a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f0b52c3747f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f0b43b30700 (LWP 8214)):
#0  0x00007f0b52c2cf7b in poll () at /usr/lib/libc.so.6
#1  0x00007f0b4d76ced3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f0b4d76cfae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f0b5356af54 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f0b5350e6eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f0b53326fce in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f0b53986376 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f0b5332bf1b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f0b524e408a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f0b52c3747f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f0b59624500 (LWP 8182)):
[KCrash Handler]
#5  0x00007f0b53513741 in QCoreApplication::postEvent(QObject*, QEvent*, int) () at /usr/lib/libQt5Core.so.5
#6  0x00007f0a884151ae in  () at /usr/lib/libpackagekitqt5.so.0
#7  0x00007f0a8840e830 in  () at /usr/lib/libpackagekitqt5.so.0
#8  0x00007f0b5353fe76 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#9  0x00007f0b539df220 in QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () at /usr/lib/libQt5DBus.so.5
#10 0x00007f0b535408c2 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#11 0x00007f0b544b7f5c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#12 0x00007f0b544bfa36 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#13 0x00007f0b535102c0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#14 0x00007f0b53512b16 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#15 0x00007f0b5356b944 in  () at /usr/lib/libQt5Core.so.5
#16 0x00007f0b4d76b270 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#17 0x00007f0b4d76cf69 in  () at /usr/lib/libglib-2.0.so.0
#18 0x00007f0b4d76cfae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#19 0x00007f0b5356af31 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#20 0x00007f0b5350e6eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#21 0x00007f0b53517738 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#22 0x0000559ef47288a3 in  ()
#23 0x00007f0b52b61f6a in __libc_start_main () at /usr/lib/libc.so.6
#24 0x0000559ef4728c5a in _start ()

Reported using DrKonqi