Application: kwin_x11 (5.8.7)

Qt Version: 5.6.2
Frameworks Version: 5.32.0
Operating System: Linux 4.4.76-1-default x86_64
Distribution: "openSUSE Leap 42.3"

-- Information about the crash:
- What I was doing when the application crashed:Downloading videos and at the same time copying files to USB stick

The crash can be reproduced sometimes.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0a99eba940 (LWP 2401))]

Thread 4 (Thread 0x7f0a72ffe700 (LWP 2519)):
#0  0x00007f0a998f50bf in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f0a95c7a93b in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007f0a95c7a969 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007f0a998f0744 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f0a9962eaad in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f0a73fff700 (LWP 2517)):
#0  0x00007f0a99627873 in select () at /lib64/libc.so.6
#1  0x00007f0a96cfa6c9 in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () at /usr/lib64/libQt5Core.so.5
#2  0x00007f0a96cfbf43 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () at /usr/lib64/libQt5Core.so.5
#3  0x00007f0a96cfc3a7 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f0a96cabbfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f0a96ae6f5a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f0a9169a3d8 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f0a96aeba29 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f0a998f0744 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f0a9962eaad in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f0a82d7f700 (LWP 2439)):
#0  0x00007f0a998f7d2d in read () at /lib64/libpthread.so.0
#1  0x00007f0a8f92e750 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f0a8f8ede49 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f0a8f8ee2a8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f0a8f8ee42c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f0a96cfe1ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f0a96cabbfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f0a96ae6f5a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007f0a90870295 in  () at /usr/lib64/libQt5DBus.so.5
#9  0x00007f0a96aeba29 in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007f0a998f0744 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f0a9962eaad in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f0a99eba940 (LWP 2401)):
[KCrash Handler]
#6  0x00007f09e3e13968 in  () at /usr/lib64/dri/i965_dri.so
#7  0x00007f09e3df98ac in  () at /usr/lib64/dri/i965_dri.so
#8  0x00007f0a91d34838 in QSGBatchRenderer::Renderer::renderBatches() () at /usr/lib64/libQt5Quick.so.5
#9  0x00007f0a91d3ad94 in QSGBatchRenderer::Renderer::render() () at /usr/lib64/libQt5Quick.so.5
#10 0x00007f0a91d465e2 in QSGRenderer::renderScene(QSGBindable const&) () at /usr/lib64/libQt5Quick.so.5
#11 0x00007f0a91d46dfb in QSGRenderer::renderScene(unsigned int) () at /usr/lib64/libQt5Quick.so.5
#12 0x00007f0a91d55b6e in QSGRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () at /usr/lib64/libQt5Quick.so.5
#13 0x00007f0a91d9c1f9 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib64/libQt5Quick.so.5
#14 0x00007f0a91d6bfd1 in  () at /usr/lib64/libQt5Quick.so.5
#15 0x00007f0a91d6d440 in  () at /usr/lib64/libQt5Quick.so.5
#16 0x00007f0a97203ace in QWindow::event(QEvent*) () at /usr/lib64/libQt5Gui.so.5
#17 0x00007f0a91da58e5 in QQuickWindow::event(QEvent*) () at /usr/lib64/libQt5Quick.so.5
#18 0x00007f09e4e9868b in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib64/libKF5PlasmaQuick.so.5
#19 0x00007f0a979ae28c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#20 0x00007f0a979b28ea in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#21 0x00007f0a96cadbe5 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#22 0x00007f0a971f9591 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /usr/lib64/libQt5Gui.so.5
#23 0x00007f0a971fa07d in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib64/libQt5Gui.so.5
#24 0x00007f0a971dbeab in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Gui.so.5
#25 0x00007f0a80a90e46 in  () at /usr/lib64/libQt5XcbQpa.so.5
#26 0x00007f0a96cabbfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#27 0x00007f0a96cb3ae6 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#28 0x00007f0a99b0e9cc in kdemain () at /usr/lib64/libkdeinit5_kwin_x11.so
#29 0x00007f0a995656e5 in __libc_start_main () at /lib64/libc.so.6
#30 0x0000000000400809 in _start ()

Reported using DrKonqi