Bug 401293

Application: plasmashell (5.13.5)

Qt Version: 5.11.1
Frameworks Version: 5.52.0
Operating System: Linux 4.18.18-200.fc28.x86_64 x86_64
Distribution: "Fedora release 28 (Twenty Eight)"

-- Information about the crash:
- What I was doing when the application crashed:  I was attempting to open Xsane via the start menu but accidentally selected the Internet program group rather than Graphics.  When I attempted to switch to graphics Plasma crashed just as I was about to hover over the Graphics menu entry.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f10c657d080 (LWP 3049))]

Thread 6 (Thread 0x7f10061e3700 (LWP 3806)):
#0  0x00007ffcf66f1b04 in clock_gettime ()
#1  0x00007f10d1349a16 in clock_gettime () at /lib64/libc.so.6
#2  0x00007f10d21e6ab5 in qt_gettime() () at /lib64/libQt5Core.so.5
#3  0x00007f10d21e558d in QTimerInfoList::updateCurrentTime() () at /lib64/libQt5Core.so.5
#4  0x00007f10d21e6e9f in timerSourceCheckHelper(GTimerSource*) () at /lib64/libQt5Core.so.5
#5  0x00007f10c99cd5e1 in g_main_context_check () at /lib64/libglib-2.0.so.0
#6  0x00007f10c99cdb70 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#7  0x00007f10c99cdcf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#8  0x00007f10d21e72ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#9  0x00007f10d2195b7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#10 0x00007f10d1ffd6b6 in QThread::exec() () at /lib64/libQt5Core.so.5
#11 0x00007f1008b9d5fb in KCupsConnection::run() () at /lib64/libkcupslib.so
#12 0x00007f10d2006b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#13 0x00007f10d067c594 in start_thread () at /lib64/libpthread.so.0
#14 0x00007f10d133be6f in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f101c016700 (LWP 3609)):
#0  0x00007ffcf66f1b04 in clock_gettime ()
#1  0x00007f10d1349a16 in clock_gettime () at /lib64/libc.so.6
#2  0x00007f10d21e6ab5 in qt_gettime() () at /lib64/libQt5Core.so.5
#3  0x00007f10d21e558d in QTimerInfoList::updateCurrentTime() () at /lib64/libQt5Core.so.5
#4  0x00007f10d21e5999 in QTimerInfoList::timerWait(timespec&) () at /lib64/libQt5Core.so.5
#5  0x00007f10d21e6f64 in timerSourcePrepareHelper(GTimerSource*, int*) () at /lib64/libQt5Core.so.5
#6  0x00007f10d21e7012 in timerSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#7  0x00007f10c99cd109 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#8  0x00007f10c99cdafb in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#9  0x00007f10c99cdcf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#10 0x00007f10d21e72ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#11 0x00007f10d2195b7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#12 0x00007f10d1ffd6b6 in QThread::exec() () at /lib64/libQt5Core.so.5
#13 0x00007f10d6014a4a in QQuickPixmapReader::run() () at /lib64/libQt5Quick.so.5
#14 0x00007f10d2006b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#15 0x00007f10d067c594 in start_thread () at /lib64/libpthread.so.0
#16 0x00007f10d133be6f in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f10add69700 (LWP 3590)):
#0  0x00007f10d068251c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f10d83aa9ba in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007f10d83aaa25 in  () at /lib64/libQt5Script.so.5
#3  0x00007f10d067c594 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f10d133be6f in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f10affff700 (LWP 3462)):
#0  0x00007ffcf66f1b04 in clock_gettime ()
#1  0x00007f10d1349a16 in clock_gettime () at /lib64/libc.so.6
#2  0x00007f10d21e6ab5 in qt_gettime() () at /lib64/libQt5Core.so.5
#3  0x00007f10d21e558d in QTimerInfoList::updateCurrentTime() () at /lib64/libQt5Core.so.5
#4  0x00007f10d21e5999 in QTimerInfoList::timerWait(timespec&) () at /lib64/libQt5Core.so.5
#5  0x00007f10d21e6f64 in timerSourcePrepareHelper(GTimerSource*, int*) () at /lib64/libQt5Core.so.5
#6  0x00007f10d21e7012 in timerSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#7  0x00007f10c99cd109 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#8  0x00007f10c99cdafb in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#9  0x00007f10c99cdcf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#10 0x00007f10d21e72ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#11 0x00007f10d2195b7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#12 0x00007f10d1ffd6b6 in QThread::exec() () at /lib64/libQt5Core.so.5
#13 0x00007f10d5d7fd09 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#14 0x00007f10d2006b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#15 0x00007f10d067c594 in start_thread () at /lib64/libpthread.so.0
#16 0x00007f10d133be6f in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f10b60ed700 (LWP 3075)):
#0  0x00007f10c9a14520 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x00007f10c99cdad0 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f10c99cdcf0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f10d21e72ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f10d2195b7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f10d1ffd6b6 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f10d3cd37b9 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#7  0x00007f10d2006b4b in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f10d067c594 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f10d133be6f in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f10c657d080 (LWP 3049)):
[KCrash Handler]
#6  0x0000000000000020 in  ()
#7  0x00007f10d21bf4cb in QMetaObject::activate(QObject*, int, void**) () at /lib64/libQt5Core.so.5
#8  0x00007f10d5b70870 in non-virtual thunk to VDMModelDelegateDataType::notify(QQmlAdaptorModel const&, QList<QQmlDelegateModelItem*> const&, int, int, QVector<int> const&) const () at /lib64/libQt5Qml.so.5
#9  0x00007f10d5dc0c9e in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () at /lib64/libQt5Qml.so.5
#10 0x00007f10d5dc7a7c in QQmlDelegateModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /lib64/libQt5Qml.so.5
#11 0x00007f10d5dc7d63 in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () at /lib64/libQt5Qml.so.5
#12 0x00007f10d21beec7 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#13 0x00007f10d21524d0 in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () at /lib64/libQt5Core.so.5
#14 0x00007f10197e1174 in FunnelModel::setSourceModel(QAbstractItemModel*) () at /usr/lib64/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#15 0x00007f10197fe5a3 in ForwardingModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /usr/lib64/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#16 0x00007f101980183b in ForwardingModel::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib64/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#17 0x00007f10d5ccfc76 in QQmlVMEMetaObject::metaCall(QObject*, QMetaObject::Call, int, void**) () at /lib64/libQt5Qml.so.5
#18 0x00007f10d5ce6866 in QQmlPropertyData::writeProperty(QObject*, void*, QFlags<QQmlPropertyData::WriteFlag>) const () at /lib64/libQt5Qml.so.5
#19 0x00007f10d5ce3a9a in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyData::WriteFlag>) () at /lib64/libQt5Qml.so.5
#20 0x00007f10d5c98bcd in QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData*, QV4::Value const&) () at /lib64/libQt5Qml.so.5
#21 0x00007f10d5c9958e in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&) () at /lib64/libQt5Qml.so.5
#22 0x00007f10d5c9968c in QV4::QObjectWrapper::put(QV4::Managed*, QV4::String*, QV4::Value const&) () at /lib64/libQt5Qml.so.5
#23 0x00007f10d5cacd70 in QV4::Runtime::method_storeProperty(QV4::ExecutionEngine*, QV4::Value const&, int, QV4::Value const&) () at /lib64/libQt5Qml.so.5
#24 0x00007f10d5cb88cd in storePropertyHelper(QV4::Function*, QV4::Value const&, int, QV4::Value const&) () at /lib64/libQt5Qml.so.5
#25 0x00007f0ffc38e48f in  ()
#26 0x00007f10b42694f8 in  ()
#27 0x00007f10b4269508 in  ()
#28 0x000055dbb76104c0 in  ()
#29 0x0000000000000000 in  ()

Reported using DrKonqi