[Bug 92103] [G45] Segmentation fault in get_stencil_miptree

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92103

--- Comment #6 from Bernd Buschinski <b.buschinski at googlemail.com> ---
I also run into this problem with Plasma 5.8.5.
using mesa-13.0.2, kernel 4.9.0, xorg-server-1.18.4 and using dri3.

Plasma crashes under some conditions when trying to render a preview, it is not
100% reproduceable.

GlxInfo stuff:

Extended renderer info (GLX_MESA_query_renderer):
    Vendor: Intel Open Source Technology Center (0x8086)
    Device: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2)  (0x1916)
    Version: 13.0.2
    Accelerated: yes
    Video memory: 3072MB
    Unified memory: yes
    Preferred profile: core (0x1)
    Max core profile version: 4.5
    Max compat profile version: 3.0
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.2
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2) 
OpenGL core profile version string: 4.5 (Core Profile) Mesa 13.0.2
OpenGL core profile shading language version string: 4.50




Backtrace:

Thread 1 (Thread 0x7fca8d3e9780 (LWP 6440)):
[KCrash Handler]
#6  0x00007fc9dbb6099f in get_stencil_miptree (irb=<optimized out>) at
/var/tmp/portage/media-libs/mesa-13.0.2/work/mesa-13.0.2/src/mesa/drivers/dri/i965/brw_misc_state.c:229
#7  brw_workaround_depthstencil_alignment (brw=brw at entry=0x14cfa78,
clear_mask=clear_mask at entry=50) at
/var/tmp/portage/media-libs/mesa-13.0.2/work/mesa-13.0.2/src/mesa/drivers/dri/i965/brw_misc_state.c:245
#8  0x00007fc9dbb44c87 in brw_clear (ctx=0x14cfa78, mask=50) at
/var/tmp/portage/media-libs/mesa-13.0.2/work/mesa-13.0.2/src/mesa/drivers/dri/i965/brw_clear.c:233
#9  0x00007fca8b60aa5a in QSGBatchRenderer::Renderer::renderBatches() () from
/usr/lib64/libQt5Quick.so.5
#10 0x00007fca8b610354 in QSGBatchRenderer::Renderer::render() () from
/usr/lib64/libQt5Quick.so.5
#11 0x00007fca8b61b9af in QSGRenderer::renderScene(QSGBindable const&) () from
/usr/lib64/libQt5Quick.so.5
#12 0x00007fca8b61c06b in QSGRenderer::renderScene(unsigned int) () from
/usr/lib64/libQt5Quick.so.5
#13 0x00007fca8b62bc7e in QSGRenderContext::renderNextFrame(QSGRenderer*,
unsigned int) () from /usr/lib64/libQt5Quick.so.5
#14 0x00007fca8b675719 in QQuickWindowPrivate::renderSceneGraph(QSize const&)
() from /usr/lib64/libQt5Quick.so.5
#15 0x00007fca8b642935 in ?? () from /usr/lib64/libQt5Quick.so.5
#16 0x00007fca8b643b68 in ?? () from /usr/lib64/libQt5Quick.so.5
#17 0x00007fca88993085 in QWindow::event(QEvent*) () from
/usr/lib64/libQt5Gui.so.5
#18 0x00007fca8b67fec5 in QQuickWindow::event(QEvent*) () from
/usr/lib64/libQt5Quick.so.5
#19 0x00007fca8cf7eafb in PlasmaQuick::Dialog::event(QEvent*) () from
/usr/lib64/libKF5PlasmaQuick.so.5
#20 0x00007fc9d83d67ac in ?? () from
/usr/lib64/qt5/qml/org/kde/plasma/core/libcorebindingsplugin.so
#21 0x00007fca88e88acc in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib64/libQt5Widgets.so.5
#22 0x00007fca88e9046e in QApplication::notify(QObject*, QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#23 0x00007fca88654c8a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib64/libQt5Core.so.5
#24 0x00007fca88988c4d in
QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*)
() from /usr/lib64/libQt5Gui.so.5
#25 0x00007fca8898987d in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() from /usr/lib64/libQt5Gui.so.5
#26 0x00007fca8896a6cb in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /usr/lib64/libQt5Gui.so.5
#27 0x00007fca765ba030 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#28 0x00007fca83bb75fd in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#29 0x00007fca83bb78e0 in ?? () from /usr/lib64/libglib-2.0.so.0
#30 0x00007fca83bb798c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#31 0x00007fca886a20af in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/libQt5Core.so.5
#32 0x00007fca88653c3a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQt5Core.so.5
#33 0x00007fca8865b64c in QCoreApplication::exec() () from
/usr/lib64/libQt5Core.so.5
#34 0x000000000041ca98 in ?? ()
#35 0x00007fca87c99650 in __libc_start_main (main=0x41bf30, argc=2,
argv=0x7ffcb2204f28, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffcb2204f18) at ../csu/libc-start.c:289
#36 0x000000000041ce19 in _start ()

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