Bug 360078

Application: plasmashell (5.5.4)

Qt Version: 5.5.1
Operating System: Linux 4.4.3-300.fc23.x86_64 x86_64
Distribution: "Fedora release 23 (Twenty Three)"

-- Information about the crash:
- What I was doing when the application crashed:

I left the computer to idle, with screen saver disabled (because a while ago it started to freeze and the only option to unfreeze the computer was to log in by ssh from another pc and use sudo init 3 and then sudo init 5 or reboot).

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7efd9b859940 (LWP 13667))]

Thread 9 (Thread 0x7efd78ecb700 (LWP 13706)):
#0  0x00007efd8e7631a7 in g_source_iter_next () at /lib64/libglib-2.0.so.0
#1  0x00007efd8e7656ab in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007efd8e76609b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007efd8e76627c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007efd94080ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007efd94027eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007efd93e44434 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007efd981919b5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007efd93e493de in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007efd9258460a in start_thread () at /lib64/libpthread.so.0
#10 0x00007efd9324ca4d in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7efd70e1e700 (LWP 13733)):
#0  0x00007efd8e7aa719 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x00007efd8e765719 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007efd8e76609b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007efd8e76627c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007efd94080ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007efd94027eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007efd93e44434 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007efd981919b5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007efd93e493de in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007efd9258460a in start_thread () at /lib64/libpthread.so.0
#10 0x00007efd9324ca4d in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7efd6a1e3700 (LWP 13734)):
#0  0x00007efd93240fdd in poll () at /lib64/libc.so.6
#1  0x00007efd8e76616c in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007efd8e76627c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007efd94080ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007efd94027eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007efd93e44434 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007efd981919b5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007efd93e493de in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007efd9258460a in start_thread () at /lib64/libpthread.so.0
#9  0x00007efd9324ca4d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7efd6899a700 (LWP 13735)):
#0  0x00007efd92589b10 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007efd9afea514 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007efd9afea559 in  () at /lib64/libQt5Script.so.5
#3  0x00007efd9258460a in start_thread () at /lib64/libpthread.so.0
#4  0x00007efd9324ca4d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7efd62598700 (LWP 13737)):
#0  0x00007efd9325aca5 in clock_gettime () at /lib64/libc.so.6
#1  0x00007efd93ef9956 in qt_gettime() () at /lib64/libQt5Core.so.5
#2  0x00007efd9407e949 in QTimerInfoList::updateCurrentTime() () at /lib64/libQt5Core.so.5
#3  0x00007efd9407eeb5 in QTimerInfoList::timerWait(timespec&) () at /lib64/libQt5Core.so.5
#4  0x00007efd940802ae in timerSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#5  0x00007efd8e76570d in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#6  0x00007efd8e76609b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#7  0x00007efd8e76627c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#8  0x00007efd94080ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#9  0x00007efd94027eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#10 0x00007efd93e44434 in QThread::exec() () at /lib64/libQt5Core.so.5
#11 0x00007efd62bab9f5 in QQuickXmlQueryEngine::run() () at /usr/lib64/qt5/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#12 0x00007efd93e493de in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#13 0x00007efd9258460a in start_thread () at /lib64/libpthread.so.0
#14 0x00007efd9324ca4d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7efd61d97700 (LWP 13738)):
#0  0x00007efd93240fdd in poll () at /lib64/libc.so.6
#1  0x00007efd8e76616c in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007efd8e76627c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007efd94080ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007efd94027eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007efd93e44434 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007efd93e493de in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007efd9258460a in start_thread () at /lib64/libpthread.so.0
#8  0x00007efd9324ca4d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7efcd7b39700 (LWP 13743)):
#0  0x00007efd8e765751 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007efd8e76609b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007efd8e76627c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007efd94080ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007efd94027eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007efd93e44434 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007efd98d3f8d6 in QQuickPixmapReader::run() () at /lib64/libQt5Quick.so.5
#7  0x00007efd93e493de in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007efd9258460a in start_thread () at /lib64/libpthread.so.0
#9  0x00007efd9324ca4d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7efcc1cce700 (LWP 13803)):
#0  0x00007efd93240fdd in poll () at /lib64/libc.so.6
#1  0x00007efd8e76616c in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007efd8e76627c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007efd94080ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007efd94027eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007efd93e44434 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007efcc3907547 in KCupsConnection::run() () at /lib64/libkcupslib.so
#7  0x00007efd93e493de in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007efd9258460a in start_thread () at /lib64/libpthread.so.0
#9  0x00007efd9324ca4d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7efd9b859940 (LWP 13667)):
[KCrash Handler]
#4  0x00007efd7d8b755c in QXcbScreen::mapFromNative(QPoint const&) const () at /lib64/libQt5XcbQpa.so.5
#5  0x00007efd7d8bf9ba in QXcbWindow::handleEnterNotifyEvent(xcb_enter_notify_event_t const*) () at /lib64/libQt5XcbQpa.so.5
#6  0x00007efd7d8a8afd in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /lib64/libQt5XcbQpa.so.5
#7  0x00007efd7d8a9433 in QXcbConnection::processXcbEvents() () at /lib64/libQt5XcbQpa.so.5
#8  0x00007efd9405a161 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#9  0x00007efd955de41c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#10 0x00007efd955e38e6 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#11 0x00007efd9402a73b in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#12 0x00007efd9402cb36 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#13 0x00007efd94080aa3 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#14 0x00007efd8e765e3a in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#15 0x00007efd8e7661d0 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#16 0x00007efd8e76627c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#17 0x00007efd94080eaf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#18 0x00007efd94027eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#19 0x00007efd9402ffac in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#20 0x00005638e8c0608a in main ()

Possible duplicates by query: bug 359799, bug 358370, bug 356408, bug 355585, bug 355583.

Reported using DrKonqi