Application: plasmashell (5.17.4)

Qt Version: 5.14.0
Frameworks Version: 5.65.0
Operating System: Linux 5.4.6-arch1-1 x86_64
Distribution: "Arch Linux"

-- Information about the crash:
- What I was doing when the application crashed:
I updated the system via "pacman -Syu", then rebooted, logged in, just after applications started, kde applications cracked, then taskbar disappeared.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fafa9a17cc0 (LWP 1733))]

Thread 7 (Thread 0x7faf81db0700 (LWP 2207)):
#0  0x00007fafad4e1c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fafae0a0cc4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007fafae0a0da2 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007fafafe0c18b in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007fafafe0c41b in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007fafae09afd6 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007fafad4db4cf in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007fafadd1d2d3 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7faf8d7fe700 (LWP 2107)):
#0  0x00007fafadd0e42c in read () at /usr/lib/libc.so.6
#1  0x00007fafac52d9f0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fafac57b9e1 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007fafac57d0c8 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fafac57d1f1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007fafae2cdcdc in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fafae27439c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007fafae099e62 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007fafafd46e9b in  () at /usr/lib/libQt5Quick.so.5
#9  0x00007fafae09afd6 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007fafad4db4cf in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007fafadd1d2d3 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7faf99275700 (LWP 2087)):
#0  0x00007fafad4e1c45 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fafae0a0cc4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007fafae0a0da2 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007fafafe0c18b in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007fafafe0c41b in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007fafae09afd6 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007fafad4db4cf in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007fafadd1d2d3 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fafa2d78700 (LWP 1811)):
#0  0x00007fafadd129ef in poll () at /usr/lib/libc.so.6
#1  0x00007fafac57d120 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fafac57d1f1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fafae2cdcdc in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fafae27439c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fafae099e62 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fafafaa3249 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007fafae09afd6 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fafad4db4cf in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fafadd1d2d3 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fafa3fff700 (LWP 1757)):
#0  0x00007fafadd0e42c in read () at /usr/lib/libc.so.6
#1  0x00007fafac52d9f0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fafac57b9e1 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007fafac57d0c8 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fafac57d1f1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007fafae2cdcdc in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fafae27439c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007fafae099e62 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007fafaec22b28 in  () at /usr/lib/libQt5DBus.so.5
#9  0x00007fafae09afd6 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007fafad4db4cf in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007fafadd1d2d3 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fafa8c49700 (LWP 1754)):
#0  0x00007fafadd129ef in poll () at /usr/lib/libc.so.6
#1  0x00007fafb024f630 in  () at /usr/lib/libxcb.so.1
#2  0x00007fafb02512db in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007fafa95fba01 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fafae09afd6 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fafad4db4cf in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fafadd1d2d3 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fafa9a17cc0 (LWP 1733)):
[KCrash Handler]
#6  0x00007faf833397b6 in  () at /usr/lib/qt/qml/org/kde/plasma/calendar/libcalendarplugin.so
#7  0x00007faf83335e21 in  () at /usr/lib/qt/qml/org/kde/plasma/calendar/libcalendarplugin.so
#8  0x00007faf833367eb in  () at /usr/lib/qt/qml/org/kde/plasma/calendar/libcalendarplugin.so
#9  0x00007fafaf9dd809 in QQmlVMEMetaObject::metaCall(QObject*, QMetaObject::Call, int, void**) () at /usr/lib/libQt5Qml.so.5
#10 0x00007fafaf91208c in  () at /usr/lib/libQt5Qml.so.5
#11 0x00007fafaf91360e in QV4::QObjectWrapper::virtualResolveLookupGetter(QV4::Object const*, QV4::ExecutionEngine*, QV4::Lookup*) () at /usr/lib/libQt5Qml.so.5
#12 0x00007fafaf932027 in  () at /usr/lib/libQt5Qml.so.5
#13 0x00007fafaf93730f in  () at /usr/lib/libQt5Qml.so.5
#14 0x00007fafaf8c8340 in QV4::Function::call(QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext const*) () at /usr/lib/libQt5Qml.so.5
#15 0x00007fafafa59030 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () at /usr/lib/libQt5Qml.so.5
#16 0x00007fafafa5edf0 in QQmlBinding::evaluate(bool*) () at /usr/lib/libQt5Qml.so.5
#17 0x00007fafafa63a9a in  () at /usr/lib/libQt5Qml.so.5
#18 0x00007fafafa600ec in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#19 0x00007fafafa71aae in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at /usr/lib/libQt5Qml.so.5
#20 0x00007fafaf9fab0b in  () at /usr/lib/libQt5Qml.so.5
#21 0x00007fafaf9fb053 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /usr/lib/libQt5Qml.so.5
#22 0x00007fafaf9f79e2 in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) () at /usr/lib/libQt5Qml.so.5
#23 0x00007fafb01595ac in KDeclarative::QmlObject::createObjectFromComponent(QQmlComponent*, QQmlContext*, QHash<QString, QVariant> const&) () at /usr/lib/libKF5Declarative.so.5
#24 0x00007fafb0646c9f in  () at /usr/lib/libKF5PlasmaQuick.so.5
#25 0x00007fafb0646eab in  () at /usr/lib/libKF5PlasmaQuick.so.5
#26 0x00007fafb06473e2 in  () at /usr/lib/libKF5PlasmaQuick.so.5
#27 0x00007fafae2af143 in  () at /usr/lib/libQt5Core.so.5
#28 0x00007fafae2a3055 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#29 0x00007fafaee96472 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#30 0x00007fafaee9fc89 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#31 0x00007fafae275832 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#32 0x00007fafae2cd05d in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#33 0x00007fafae2cd92a in  () at /usr/lib/libQt5Core.so.5
#34 0x00007fafac57b39e in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#35 0x00007fafac57d1b1 in  () at /usr/lib/libglib-2.0.so.0
#36 0x00007fafac57d1f1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#37 0x00007fafae2cdcc0 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#38 0x00007fafae27439c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#39 0x00007fafae27c3a6 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#40 0x000055e32da48dc9 in  ()
#41 0x00007fafadc45153 in __libc_start_main () at /usr/lib/libc.so.6
#42 0x000055e32da4922e in _start ()
[Inferior 1 (process 1733) detached]

The reporter indicates this bug may be a duplicate of or related to bug 415356, bug 415296, bug 415239, bug 415122.

Possible duplicates by query: bug 415492, bug 415459, bug 415451, bug 415445, bug 415433.

Reported using DrKonqi