Application: kwin_x11 (5.8.4)

Qt Version: 5.7.0
Frameworks Version: 5.28.0
Operating System: Linux 4.8.11-1-ck-haswell x86_64
Distribution: "Arch Linux"

-- Information about the crash:
- What I was doing when the application crashed: Google Chrome was loading after being opened via launcher icon. I clicked on its icon in the task area of the bottom panel while it was loading. It didn't come up instantly, so (impatiently), I clicked the icon a few times in rapid succession.

- Unusual behavior I noticed: When Chrome finally came up, it had some strange black artifacts in the title bar decoration until I clicked the window into focus.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa6705a1840 (LWP 780))]

Thread 6 (Thread 0x7fa64d50e700 (LWP 1788)):
#0  0x00007fa66ffe3551 in ppoll () at /usr/lib/libc.so.6
#1  0x00007fa66d690ac9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007fa66d6923b8 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007fa66d63f23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fa66d4620f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007fa667fd82d5 in  () at /usr/lib/libQt5Qml.so.5
#6  0x00007fa66d466d78 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fa66927a454 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fa66ffec7df in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fa63895a700 (LWP 1164)):
#0  0x00007fa66928010f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fa66c5d6ac4 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007fa66c5d6b09 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007fa66927a454 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fa66ffec7df in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fa64e50f700 (LWP 1099)):
#0  0x00007fa66ffe3551 in ppoll () at /usr/lib/libc.so.6
#1  0x00007fa66d690ac9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007fa66d6923b8 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007fa66d63f23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fa66d4620f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007fa667fd82d5 in  () at /usr/lib/libQt5Qml.so.5
#6  0x00007fa66d466d78 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fa66927a454 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fa66ffec7df in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fa654d8e700 (LWP 883)):
#0  0x00007fa66ffe3551 in ppoll () at /usr/lib/libc.so.6
#1  0x00007fa66d690ac9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007fa66d6923b8 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007fa66d63f23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fa66d4620f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007fa6671a2e55 in  () at /usr/lib/libQt5DBus.so.5
#6  0x00007fa66d466d78 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fa66927a454 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fa66ffec7df in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fa656eb5700 (LWP 818)):
#0  0x00007fa66ffe348d in poll () at /usr/lib/libc.so.6
#1  0x00007fa66f1238e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007fa66f125679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007fa657d8d449 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fa66d466d78 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fa66927a454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fa66ffec7df in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fa6705a1840 (LWP 780)):
[KCrash Handler]
#6  0x000000004029293b in  ()
#7  0x00007fa63b40ef34 in  () at /usr/lib/libnvidia-glcore.so.375.20
#8  0x00007fa63b4141f8 in  () at /usr/lib/libnvidia-glcore.so.375.20
#9  0x00007fa63afe8838 in  () at /usr/lib/libnvidia-glcore.so.375.20
#10 0x00007fa66dea6ec4 in QOpenGLTextureGlyphCache::resizeTextureData(int, int) () at /usr/lib/libQt5Gui.so.5
#11 0x00007fa66de46ea6 in QTextureGlyphCache::fillInPendingGlyphs() () at /usr/lib/libQt5Gui.so.5
#12 0x00007fa668688d38 in  () at /usr/lib/libQt5Quick.so.5
#13 0x00007fa668686bf4 in  () at /usr/lib/libQt5Quick.so.5
#14 0x00007fa66870de07 in QQuickTextNode::addGlyphs(QPointF const&, QGlyphRun const&, QColor const&, QQuickText::TextStyle, QColor const&, QSGNode*) () at /usr/lib/libQt5Quick.so.5
#15 0x00007fa668712a54 in  () at /usr/lib/libQt5Quick.so.5
#16 0x00007fa66870ed2c in QQuickTextNode::addTextLayout(QPointF const&, QTextLayout*, QColor const&, QQuickText::TextStyle, QColor const&, QColor const&, QColor const&, QColor const&, int, int, int, int) () at /usr/lib/libQt5Quick.so.5
#17 0x00007fa66870d7ea in QQuickText::updatePaintNode(QSGNode*, QQuickItem::UpdatePaintNodeData*) () at /usr/lib/libQt5Quick.so.5
#18 0x00007fa6686cb190 in QQuickWindowPrivate::updateDirtyNode(QQuickItem*) () at /usr/lib/libQt5Quick.so.5
#19 0x00007fa6686cb9ab in QQuickWindowPrivate::updateDirtyNodes() () at /usr/lib/libQt5Quick.so.5
#20 0x00007fa6686cca1e in QQuickWindowPrivate::syncSceneGraph() () at /usr/lib/libQt5Quick.so.5
#21 0x00007fa6687b038a in QQuickRenderControl::sync() () at /usr/lib/libQt5Quick.so.5
#22 0x00007fa64e74d080 in  () at /usr/lib/qt/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#23 0x00007fa66d66c9ce in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#24 0x00007fa66d6796d8 in QTimer::timerEvent(QTimerEvent*) () at /usr/lib/libQt5Core.so.5
#25 0x00007fa66d66d473 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#26 0x00007fa66e320e0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#27 0x00007fa66e328581 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#28 0x00007fa66d640de0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#29 0x00007fa66d6946ae in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#30 0x00007fa66d692618 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#31 0x00007fa657e0617d in  () at /usr/lib/libQt5XcbQpa.so.5
#32 0x00007fa66d63f23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#33 0x00007fa66d64773c in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#34 0x00007fa6702ab495 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so
#35 0x00007fa66ff24291 in __libc_start_main () at /usr/lib/libc.so.6
#36 0x000000000040069a in _start ()

Reported using DrKonqi