Bug 360900

Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.5-200.fc22.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
hovering over the taskbar with the popup-view seems to cause this everytime.  this is a possible duplicate.

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 0x7f534d0a1900 (LWP 1820))]

Thread 8 (Thread 0x7f5345d40700 (LWP 1857)):
#0  0x0000003a36af757d in poll () from /lib64/libc.so.6
#1  0x0000003a3b20a182 in _xcb_conn_wait () from /lib64/libxcb.so.1
#2  0x0000003a3b20bc77 in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007f53463c1da9 in QXcbEventReader::run() () from /lib64/libQt5XcbQpa.so.5
#4  0x0000003d030a33de in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x0000003a36e07555 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003a36b02ded in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f533f5ef700 (LWP 1909)):
#0  0x0000003a36af323d in read () from /lib64/libc.so.6
#1  0x0000003a38a8db00 in g_wakeup_acknowledge () from /lib64/libglib-2.0.so.0
#2  0x0000003a38a498b4 in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x0000003a38a49d60 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#4  0x0000003a38a49ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x0000003d032daecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x0000003d03281eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#7  0x0000003d0309e434 in QThread::exec() () from /lib64/libQt5Core.so.5
#8  0x0000003d112d99b5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#9  0x0000003d030a33de in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#10 0x0000003a36e07555 in start_thread () from /lib64/libpthread.so.0
#11 0x0000003a36b02ded in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f53346fd700 (LWP 1923)):
#0  0x0000003a38a8eee4 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#1  0x0000003a38a49c6d in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x0000003a38a49ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x0000003d032daecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x0000003d03281eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x0000003d0309e434 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x0000003d112d99b5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x0000003d030a33de in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x0000003a36e07555 in start_thread () from /lib64/libpthread.so.0
#9  0x0000003a36b02ded in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f5332d0a700 (LWP 1973)):
#0  0x0000003a36af757d in poll () from /lib64/libc.so.6
#1  0x0000003a38a49dbc in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x0000003a38a49ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x0000003d032daecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x0000003d03281eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x0000003d0309e434 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x0000003d112d99b5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x0000003d030a33de in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x0000003a36e07555 in start_thread () from /lib64/libpthread.so.0
#9  0x0000003a36b02ded in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f533139b700 (LWP 1974)):
#0  0x0000003a36e0c540 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000003d13585514 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQt5Script.so.5
#2  0x0000003d13585559 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQt5Script.so.5
#3  0x0000003a36e07555 in start_thread () from /lib64/libpthread.so.0
#4  0x0000003a36b02ded in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f532a6bb700 (LWP 2142)):
#0  0x0000003a38a8eee4 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#1  0x0000003a38a49639 in g_main_context_query () from /lib64/libglib-2.0.so.0
#2  0x0000003a38a49d37 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x0000003a38a49ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x0000003d032daecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x0000003d03281eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x0000003d0309e434 in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x0000003d11cf68d6 in QQuickPixmapReader::run() () from /lib64/libQt5Quick.so.5
#8  0x0000003d030a33de in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#9  0x0000003a36e07555 in start_thread () from /lib64/libpthread.so.0
#10 0x0000003a36b02ded in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f5299d64700 (LWP 2217)):
#0  0x0000003a36e0d350 in pthread_getspecific () from /lib64/libpthread.so.0
#1  0x0000003a38a71550 in g_thread_self () from /lib64/libglib-2.0.so.0
#2  0x0000003a38a49ebd in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x0000003d032daecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x0000003d03281eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x0000003d0309e434 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f529acc7397 in KCupsConnection::run() () from /lib64/libkcupslib.so
#7  0x0000003d030a33de in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x0000003a36e07555 in start_thread () from /lib64/libpthread.so.0
#9  0x0000003a36b02ded in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f534d0a1900 (LWP 1820)):
[KCrash Handler]
#5  0x0000003a36b590a0 in __memmove_ssse3_back () from /lib64/libc.so.6
#6  0x00007f533c80de5d in drisw_update_tex_buffer () from /usr/lib64/dri/swrast_dri.so
#7  0x00007f533c80ca65 in dri_set_tex_buffer2 () from /usr/lib64/dri/swrast_dri.so
#8  0x00007f533dfcdb2a in Plasma::WindowThumbnail::windowToTextureGLX(Plasma::WindowTextureNode*) () from /usr/lib64/qt5/qml/org/kde/plasma/core/libcorebindingsplugin.so
#9  0x00007f533dfce629 in Plasma::WindowThumbnail::windowToTexture(Plasma::WindowTextureNode*) () from /usr/lib64/qt5/qml/org/kde/plasma/core/libcorebindingsplugin.so
#10 0x00007f533dfceb94 in Plasma::WindowThumbnail::updatePaintNode(QSGNode*, QQuickItem::UpdatePaintNodeData*) () from /usr/lib64/qt5/qml/org/kde/plasma/core/libcorebindingsplugin.so
#11 0x0000003d11d941c8 in QQuickWindowPrivate::updateDirtyNode(QQuickItem*) () from /lib64/libQt5Quick.so.5
#12 0x0000003d11d94a4b in QQuickWindowPrivate::updateDirtyNodes() () from /lib64/libQt5Quick.so.5
#13 0x0000003d11d94bc0 in QQuickWindowPrivate::syncSceneGraph() () from /lib64/libQt5Quick.so.5
#14 0x0000003d11d6392c in QSGGuiThreadRenderLoop::renderWindow(QQuickWindow*) () from /lib64/libQt5Quick.so.5
#15 0x0000003d11d64aa1 in QSGGuiThreadRenderLoop::event(QEvent*) () from /lib64/libQt5Quick.so.5
#16 0x0000003d0615441c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#17 0x0000003d061598e6 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#18 0x0000003d0328473b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#19 0x0000003d032d9ccd in QTimerInfoList::activateTimers() () from /lib64/libQt5Core.so.5
#20 0x0000003d032da1d1 in timerSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5Core.so.5
#21 0x0000003a38a49a8a in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#22 0x0000003a38a49e20 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#23 0x0000003a38a49ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#24 0x0000003d032daeaf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#25 0x0000003d03281eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#26 0x0000003d03289fac in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#27 0x00000000004314da in main ()

Possible duplicates by query: bug 360496, bug 359825, bug 359648, bug 359256, bug 359253.

Reported using DrKonqi