Bug 383953

Application: plasmashell (5.10.5)

Qt Version: 5.9.1
Frameworks Version: 5.37.0
Operating System: Linux 4.12.8-1-hardened x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
Crashes every 6-8 hours when i am away from machine.  It never happens when I am actively using the machine. Sometimes its just a black screen with latte dock still running, other times plasmashell reloads

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 0x60f273bffc80 (LWP 19094))]

Thread 9 (Thread 0x60f1ac4cb700 (LWP 19111)):
[KCrash Handler]
#5  0x000060f1ac5cef70 in  () at /usr/lib/libQt5XmlPatterns.so.5
#6  0x000060f1ac5cecf7 in  () at /usr/lib/libQt5XmlPatterns.so.5
#7  0x000060f1ac5cde56 in  () at /usr/lib/libQt5XmlPatterns.so.5
#8  0x000060f1ac5b2fac in  () at /usr/lib/libQt5XmlPatterns.so.5
#9  0x000060f1ac5c4f3e in QXmlQuery::setQuery(QIODevice*, QUrl const&) () at /usr/lib/libQt5XmlPatterns.so.5
#10 0x000060f1ac5c62aa in QXmlQuery::setQuery(QString const&, QUrl const&) () at /usr/lib/libQt5XmlPatterns.so.5
#11 0x000060f1acaf4ae9 in  () at /usr/lib/qt/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#12 0x000060f1acaf5f65 in  () at /usr/lib/qt/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#13 0x000060f1acaf6b6f in  () at /usr/lib/qt/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#14 0x000060f1acaf6bcd in  () at /usr/lib/qt/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#15 0x000060f26ea15e4c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#16 0x000060f26ea1d926 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#17 0x000060f26da63bd0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#18 0x000060f26da66426 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#19 0x000060f26dabea74 in  () at /usr/lib/libQt5Core.so.5
#20 0x000060f267aaaa57 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#21 0x000060f267aaac88 in  () at /usr/lib/libglib-2.0.so.0
#22 0x000060f267aaad1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#23 0x000060f26dabe061 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#24 0x000060f26da61ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#25 0x000060f26d87b40e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#26 0x000060f1acaf6c3a in  () at /usr/lib/qt/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#27 0x000060f26d88015b in  () at /usr/lib/libQt5Core.so.5
#28 0x000060f26ca49049 in start_thread () at /usr/lib/libpthread.so.0
#29 0x000060f26d193f0f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x60f1b6931700 (LWP 19103)):
#0  0x000060f267aefa84 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x000060f267aaa138 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x000060f267aaab3b in  () at /usr/lib/libglib-2.0.so.0
#3  0x000060f267aaad1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x000060f26dabe084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x000060f26da61ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x000060f26d87b40e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x000060f2715b496b in  () at /usr/lib/libQt5Quick.so.5
#8  0x000060f26d88015b in  () at /usr/lib/libQt5Core.so.5
#9  0x000060f26ca49049 in start_thread () at /usr/lib/libpthread.so.0
#10 0x000060f26d193f0f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x60f1bd7e4700 (LWP 19102)):
#0  0x000060f267aa7b5a in  () at /usr/lib/libglib-2.0.so.0
#1  0x000060f267aaa07b in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x000060f267aaab3b in  () at /usr/lib/libglib-2.0.so.0
#3  0x000060f267aaad1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x000060f26dabe084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x000060f26da61ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x000060f26d87b40e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x000060f26d88015b in  () at /usr/lib/libQt5Core.so.5
#8  0x000060f26ca49049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x000060f26d193f0f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x60f24d72b700 (LWP 19099)):
#0  0x000060f26ca4f1ad in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x000060f2732dbb04 in  () at /usr/lib/libQt5Script.so.5
#2  0x000060f2732dbb49 in  () at /usr/lib/libQt5Script.so.5
#3  0x000060f26ca49049 in start_thread () at /usr/lib/libpthread.so.0
#4  0x000060f26d193f0f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x60f24f78f700 (LWP 19098)):
#0  0x000060f267aefa84 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x000060f267aaaabd in  () at /usr/lib/libglib-2.0.so.0
#2  0x000060f267aaad1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x000060f26dabe084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x000060f26da61ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x000060f26d87b40e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x000060f270a033d9 in  () at /usr/lib/libQt5Qml.so.5
#7  0x000060f26d88015b in  () at /usr/lib/libQt5Core.so.5
#8  0x000060f26ca49049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x000060f26d193f0f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x60f255cb3700 (LWP 19097)):
#0  0x000060f26d189e9d in poll () at /usr/lib/libc.so.6
#1  0x000060f267aaac09 in  () at /usr/lib/libglib-2.0.so.0
#2  0x000060f267aaad1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x000060f26dabe084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x000060f26da61ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x000060f26d87b40e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x000060f270a033d9 in  () at /usr/lib/libQt5Qml.so.5
#7  0x000060f26d88015b in  () at /usr/lib/libQt5Core.so.5
#8  0x000060f26ca49049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x000060f26d193f0f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x60f2576fd700 (LWP 19096)):
#0  0x000060f267aefa84 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x000060f267aaa138 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x000060f267aaab3b in  () at /usr/lib/libglib-2.0.so.0
#3  0x000060f267aaad1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x000060f26dabe084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x000060f26da61ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x000060f26d87b40e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x000060f26dedd396 in  () at /usr/lib/libQt5DBus.so.5
#8  0x000060f26d88015b in  () at /usr/lib/libQt5Core.so.5
#9  0x000060f26ca49049 in start_thread () at /usr/lib/libpthread.so.0
#10 0x000060f26d193f0f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x60f25d813700 (LWP 19095)):
#0  0x000060f26d189e9d in poll () at /usr/lib/libc.so.6
#1  0x000060f2721e78e0 in  () at /usr/lib/libxcb.so.1
#2  0x000060f2721e9679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x000060f25fd8972a in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x000060f26d88015b in  () at /usr/lib/libQt5Core.so.5
#5  0x000060f26ca49049 in start_thread () at /usr/lib/libpthread.so.0
#6  0x000060f26d193f0f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x60f273bffc80 (LWP 19094)):
#0  0x000060f26ca4f1ad in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x000060f2721e7b57 in  () at /usr/lib/libxcb.so.1
#2  0x000060f2721e939f in  () at /usr/lib/libxcb.so.1
#3  0x000060f2721e9511 in xcb_wait_for_reply64 () at /usr/lib/libxcb.so.1
#4  0x000060f2724464d8 in _XReply () at /usr/lib/libX11.so.6
#5  0x000060f264b5827a in XSyncQueryCounter () at /usr/lib/libXext.so.6
#6  0x000060f1a874b1f5 in  () at /usr/lib/qt/plugins/kf5/org.kde.kidletime.platforms/KF5IdleTimeXcbPlugin0.so
#7  0x000060f1a8fdc5be in  () at /usr/lib/qt/plugins/plasma/dataengine/plasma_engine_powermanagement.so
#8  0x000060f271d501e9 in  () at /usr/lib/libKF5Plasma.so.5
#9  0x000060f26da93786 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#10 0x000060f271d49013 in Plasma::DataContainer::updateRequested(Plasma::DataContainer*) () at /usr/lib/libKF5Plasma.so.5
#11 0x000060f271d68159 in  () at /usr/lib/libKF5Plasma.so.5
#12 0x000060f26da9418b in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#13 0x000060f26ea15e4c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#14 0x000060f26ea1d926 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#15 0x000060f26da63bd0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#16 0x000060f26dabd4a8 in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#17 0x000060f26dabdca2 in  () at /usr/lib/libQt5Core.so.5
#18 0x000060f267aaaa57 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#19 0x000060f267aaac88 in  () at /usr/lib/libglib-2.0.so.0
#20 0x000060f267aaad1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#21 0x000060f26dabe061 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#22 0x000060f26da61ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#23 0x000060f26da6b048 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#24 0x00000d7bc11b773b in  ()
#25 0x000060f26d0c64ca in __libc_start_main () at /usr/lib/libc.so.6
#26 0x00000d7bc11b7ada in _start ()

Reported using DrKonqi