Application: plasmashell (5.11.4)

Qt Version: 5.10.0
Frameworks Version: 5.41.0
Operating System: Linux 4.14.5-1-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
- What I was doing when the application crashed:
Click the App Launcher icon

- Custom settings of the application:

I thinks it has something to do with Activities, as now KDE doesn't show them.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f707b045800 (LWP 7371))]

Thread 9 (Thread 0x7f6f9b51b700 (LWP 8509)):
#0  0x00007f7073de16cd in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7074c27ec1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7074c23d91 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f7074c26b2d in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f7073ddb08a in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f707452e42f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f6fb0960700 (LWP 7837)):
#0  0x00007f7074523f2b in poll () at /usr/lib/libc.so.6
#1  0x00007f706ede8ed3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f706ede8fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7074e6f6b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f7074e1182b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7074c2178e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f6fb32ff1aa in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#7  0x00007f7074c26b2d in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f7073ddb08a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f707452e42f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f6fc540a700 (LWP 7603)):
#0  0x00007f706ede8784 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#1  0x00007f706ede8df6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f706ede8fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7074e6f6b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f7074e1182b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7074c2178e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f70789e7bcb in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007f7074c26b2d in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f7073ddb08a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f707452e42f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f7054ab4700 (LWP 7553)):
#0  0x00007f7073de138d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f707a738f77 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f707a738fb9 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f7073ddb08a in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f707452e42f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f7056b5f700 (LWP 7543)):
#0  0x00007f7074523f2b in poll () at /usr/lib/libc.so.6
#1  0x00007f706ede8ed3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f706ede8fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7074e6f6b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f7074e1182b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7074c2178e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f7077e2ba19 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f7074c26b2d in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f7073ddb08a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f707452e42f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f705c9e1700 (LWP 7455)):
#0  0x00007f706ee105f9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f706ede8e96 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f706ede8fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7074e6f6b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f7074e1182b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7074c2178e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f7077e2ba19 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f7074c26b2d in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f7073ddb08a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f707452e42f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f705e42a700 (LWP 7416)):
#0  0x00007f706ee10664 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f706ede8761 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007f706ede8df6 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f706ede8fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f7074e6f6b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7074e1182b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f7074c2178e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f7075291416 in  () at /usr/lib/libQt5DBus.so.5
#8  0x00007f7074c26b2d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f7073ddb08a in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f707452e42f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f706483f700 (LWP 7395)):
#0  0x00007f7074523f2b in poll () at /usr/lib/libc.so.6
#1  0x00007f70796368e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f7079638679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f7066fca7aa in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f7074c26b2d in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f7073ddb08a in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f707452e42f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f707b045800 (LWP 7371)):
[KCrash Handler]
#5  0x00007f707446c860 in raise () at /usr/lib/libc.so.6
#6  0x00007f707446dec9 in abort () at /usr/lib/libc.so.6
#7  0x00007f7074c108c8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f6fbfb56227 in  () at /usr/lib/libKF5ActivitiesStats.so.1
#9  0x00007f6fbfb39d84 in KActivities::Stats::ResultSet::ResultSet(KActivities::Stats::Query) () at /usr/lib/libKF5ActivitiesStats.so.1
#10 0x00007f6fbfdae870 in  () at /usr/lib/qt/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#11 0x00007f6fbfda84ac in  () at /usr/lib/qt/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#12 0x00007f6fbfddd35a in  () at /usr/lib/qt/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#13 0x00007f6fbfddfee0 in  () at /usr/lib/qt/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#14 0x00007f7077ddc6ba in  () at /usr/lib/libQt5Qml.so.5
#15 0x00007f7077d555c6 in  () at /usr/lib/libQt5Qml.so.5
#16 0x00007f7077d56d3f in  () at /usr/lib/libQt5Qml.so.5
#17 0x00007f7077d578ea in QV4::QObjectMethod::callInternal(QV4::CallData*, QV4::Scope&) const () at /usr/lib/libQt5Qml.so.5
#18 0x00007f7077d70afb in QV4::Runtime::method_callProperty(QV4::ExecutionEngine*, int, QV4::CallData*) () at /usr/lib/libQt5Qml.so.5
#19 0x00007f6fc41d6d6a in  ()
#20 0x00007f7055b20408 in  ()
#21 0x0003800000000000 in  ()
#22 0x00007f7050040db8 in  ()
#23 0x0003400000000001 in  ()
#24 0x0000561bb1fcf750 in  ()
#25 0x00000003af0089e0 in  ()
#26 0x00007ffd65299b60 in  ()
#27 0x0000561bafbe8c20 in  ()
#28 0x0000561bafbe8c20 in  ()
#29 0x0000000000000000 in  ()

Reported using DrKonqi