Bug 376832

Application: plasmashell (5.9.2)

Qt Version: 5.8.0
Frameworks Version: 5.31.0
Operating System: Linux 4.4.48-1-MANJARO x86_64
Distribution: "Manjaro Linux"

-- Information about the crash:
- What I was doing when the application crashed:
I clicked on Default button from Desktop and the plasmashell crashed

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 0x7fa040714800 (LWP 4647))]

Thread 8 (Thread 0x7f9f74540700 (LWP 10405)):
#0  0x00007fa039de86b4 in clock_gettime () at /usr/lib/libc.so.6
#1  0x00007fa03a6f5201 in  () at /usr/lib/libQt5Core.so.5
#2  0x00007fa03a6f39c9 in QTimerInfoList::updateCurrentTime() () at /usr/lib/libQt5Core.so.5
#3  0x00007fa03a6f59c5 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007fa034bf0179 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#5  0x00007fa034bf0724 in  () at /usr/lib/libglib-2.0.so.0
#6  0x00007fa034bf089c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#7  0x00007fa03a6f606b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#8  0x00007fa03a69f89a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#9  0x00007fa03a4c1a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#10 0x00007f9f76e120a7 in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#11 0x00007fa03a4c66d8 in  () at /usr/lib/libQt5Core.so.5
#12 0x00007fa039391454 in start_thread () at /usr/lib/libpthread.so.0
#13 0x00007fa039ddb7df in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f9f8824f700 (LWP 8740)):
#0  0x00007fa039dce4ed in read () at /usr/lib/libc.so.6
#1  0x00007fa034c34a10 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fa034bf0235 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007fa034bf0724 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fa034bf089c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007fa03a6f606b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fa03a69f89a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007fa03a4c1a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007fa03e1aefd6 in  () at /usr/lib/libQt5Quick.so.5
#9  0x00007fa03a4c66d8 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007fa039391454 in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007fa039ddb7df in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7fa012a54700 (LWP 8049)):
#0  0x00007fa03939710f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fa03fea3234 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007fa03fea3279 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007fa039391454 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fa039ddb7df in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fa0208c3700 (LWP 8003)):
#0  0x00007fa034c35db9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fa034bf076b in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fa034bf089c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fa03a6f606b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fa03a69f89a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fa03a4c1a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fa03d5fb025 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007fa03a4c66d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fa039391454 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fa039ddb7df in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fa022323700 (LWP 6099)):
#0  0x00007fa03a4bdc75 in QMutex::unlock() () at /usr/lib/libQt5Core.so.5
#1  0x00007fa03a6f57f1 in  () at /usr/lib/libQt5Core.so.5
#2  0x00007fa034befc89 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#3  0x00007fa034bf06ab in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fa034bf089c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007fa03a6f606b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fa03a69f89a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007fa03a4c1a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007fa03d5fb025 in  () at /usr/lib/libQt5Qml.so.5
#9  0x00007fa03a4c66d8 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007fa039391454 in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007fa039ddb7df in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fa023d6b700 (LWP 4693)):
#0  0x00007fa034c35db9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fa034befc95 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007fa034bf06ab in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007fa034bf089c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007fa03a6f606b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fa03a69f89a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fa03a4c1a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007fa03ab0b125 in  () at /usr/lib/libQt5DBus.so.5
#8  0x00007fa03a4c66d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007fa039391454 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fa039ddb7df in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fa0299f6700 (LWP 4680)):
#0  0x00007fa039dd248d in poll () at /usr/lib/libc.so.6
#1  0x00007fa03edc98e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007fa03edcb679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007fa02b935239 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fa03a4c66d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fa039391454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fa039ddb7df in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fa040714800 (LWP 4647)):
[KCrash Handler]
#6  0x00007fa03e259de1 in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /usr/lib/libQt5Quick.so.5
#7  0x00007fa03e259dea in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /usr/lib/libQt5Quick.so.5
#8  0x00007fa03e259f44 in QQuickItem::setVisible(bool) () at /usr/lib/libQt5Quick.so.5
#9  0x00007fa0401d708c in  () at /usr/lib/libKF5PlasmaQuick.so.5
#10 0x00007fa0401d88c6 in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/libKF5PlasmaQuick.so.5
#11 0x00007fa03b60f34c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#12 0x00007fa03b616b61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#13 0x00007fa03a6a1440 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#14 0x00007fa03ae8478e in QWindow::setVisible(bool) () at /usr/lib/libQt5Gui.so.5
#15 0x00007fa0401d497c in PlasmaQuick::Dialog::setVisible(bool) () at /usr/lib/libKF5PlasmaQuick.so.5
#16 0x00007fa0401d7818 in  () at /usr/lib/libKF5PlasmaQuick.so.5
#17 0x00007fa0401d907b in PlasmaQuick::Dialog::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib/libKF5PlasmaQuick.so.5
#18 0x00007fa03d56eac9 in  () at /usr/lib/libQt5Qml.so.5
#19 0x00007fa03d56d498 in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#20 0x00007fa03d537b7b in QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData*, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#21 0x00007fa03d538390 in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#22 0x00007fa03d5384a6 in QV4::QObjectWrapper::put(QV4::Managed*, QV4::String*, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#23 0x00007fa03d548f56 in QV4::Runtime::method_setProperty(QV4::ExecutionEngine*, QV4::Value const&, int, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#24 0x00007f9f91ed4f42 in  ()
#25 0x000000000137ac90 in  ()
#26 0x00007f9f91ed5504 in  ()
#27 0x000000000125ea90 in  ()
#28 0x0003400000000001 in  ()
#29 0x00000000000004fa in  ()
#30 0x0003400000000000 in  ()
#31 0x00007ffd04634440 in  ()
#32 0x0000000000000000 in  ()

Reported using DrKonqi