<div dir="ltr"><div>Can you test this? diff --git a/src/mesa/state_tracker/st_draw.c b/src/mesa/state_tracker/st_draw.c index b95a2522b2e..73f936bb4a9 100644 --- a/src/mesa/state_tracker/st_draw.c +++ b/src/mesa/state_tracker/st_draw.c @@ -173,6 +173,13 @@ st_draw_vbo(struct gl_context *ctx, /* indices are in a real VBO */ info.has_user_indices = false; info.index.resource = st_buffer_object(bufobj)->buffer; + + /* Return if the bound element array buffer doesn't have any backing + * storage. (nothing to do) + */ + if (!info.index.resource) + return; + start = pointer_to_offset(ib->ptr) / info.index_size; } else { /* indices are in user space memory */ </div>Marek </div><div class="gmail_extra"> <div class="gmail_quote">On Mon, Mar 19, 2018 at 4:22 PM, Clemens Eisserer <<a href="mailto:linuxhippy@gmail.com" target="_blank">linuxhippy@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Marek and Roman, > Set this environment variable to disable multithreading: > GALLIUM_THREAD=0 Thanks, so at least I get now a proper stacktrace (at the bottom). I am no OpenGL expert, the only thing I find suspicious is that the last function before entering mesa code actually has a parameter indexbuf set to 0x555558b32b18, while in si_draw_vbo indexbuf=0. However, those two might be completly unrelated indexbuf variables of course. Best regards, Clemens Thread 1 "kwin" received signal SIGSEGV, Segmentation fault. si_draw_vbo (ctx=0x5555590ed3e0, info=0x7fffffffd020) at si_state_draw.c:1372 1372 } else if (sctx->b.chip_class <= CIK && #0 0x00007fffc37fa890 in si_draw_vbo (ctx=0x5555590ed3e0, info=0x7fffffffd020) at si_state_draw.c:1372 sctx = 0x5555590ed3e0 rs = <optimized out> indexbuf = 0x0 dirty_tex_counter = <optimized out> rast_prim = <optimized out> index_size = 2 index_offset = 0 #1 0x00007fffc352180c in u_vbuf_draw_vbo (mgr=0x5555584c57a0, info=<optimized out>) at util/u_vbuf.c:1142 pipe = 0x5555590ed3e0 start_vertex = <optimized out> min_index = <optimized out> num_vertices = <optimized out> unroll_indices = 0 '\000' used_vb_mask = <optimized out> user_vb_mask = <optimized out> incompatible_vb_mask = 0 new_info = {index_size = 10 '\n', mode = PIPE_PRIM_POINTS, primitive_restart = 0, has_user_indices = 0, vertices_per_patch = 0 '\000', start = 0, count = 16, start_instance = 0, instance_count = 16, drawid = 0, index_bias = 1486497808, min_index = 21845, max_index = 1494143968, restart_index = 21845, index = {resource = 0x7fffc37cf21c <si_set_constant_buffer+572>, user = 0x7fffc37cf21c <si_set_constant_buffer+572>}, indirect = 0x100000001, count_from_stream_output = 0x10} #2 0x00007fffc32aeb9f in st_draw_vbo (ctx=<optimized out>, prims=0x7fffffffd100, nr_prims=<optimized out>, ib=0x7fffffffd0e0, index_bounds_valid=<optimized out>, min_index=<optimized out>, max_index=<optimized out>, tfb_vertcount=0x0, stream=0, indirect=0x0) at state_tracker/st_draw.c:227 st = 0x555558be7170 info = {index_size = 2 '\002', mode = PIPE_PRIM_TRIANGLE_STRIP, primitive_restart = 0, has_user_indices = 0, vertices_per_patch = 3 '\003', start = 1, count = 4, start_instance = 0, instance_count = 1, drawid = 0, index_bias = 0, min_index = 0, max_index = 4294967295, restart_index = 21845, index = {resource = 0x0, user = 0x0}, indirect = 0x0, count_from_stream_output = 0x0} i = <optimized out> start = 1 #3 0x00007fffc3271d58 in vbo_validated_drawrangeelements (ctx=ctx@entry=0x5555589e1280, mode=mode@entry=5, index_bounds_valid=index_bounds_valid@entry=0 '\000', start=start@entry=0, end=end@entry=4294967295, count=count@entry=4, type=5123, indices=0x2, basevertex=0, numInstances=1, baseInstance=0) at vbo/vbo_exec_array.c:925 vbo = <optimized out> ib = {count = 4, index_size = 2, obj = 0x555558fab6e0, ptr = 0x2} prim = {mode = 5, indexed = 1, begin = 1, end = 1, weak = 0, no_current_update = 0, is_indirect = 0, pad = 0, start = 0, count = 4, basevertex = 0, num_instances = 1, base_instance = 0, draw_id = 0, indirect_offset = 1} #4 0x00007fffc32724cf in vbo_exec_DrawElements (mode=5, count=4, type=5123, indices=0x2) at vbo/vbo_exec_array.c:1075 ctx = 0x5555589e1280 #5 0x00007ffff5ec9d5f in QOpenGLFunctions::glDrawElements(unsigned int, int, unsigned int, void const*) (indices=<optimized out>, type=5123, count=<optimized out>, mode=<optimized out>, this=0x5555591f09b8) at /usr/include/qt5/QtGui/qopenglfunctions.h:752 offset = <optimized out> i = 0 gn = <optimized out> sms = 0x55555932aed0 attrNames = 0x7ffff6382e10 <QSGOpaqueTextureMaterialShader::attributeNames() const::attr> e = <optimized out> dirty = <optimized out> indexBase = 0x0 indexBuf = 0x555558b32b18 material = <optimized out> program = <optimized out> batch = 0x555558b32ae0 this = 0x5555591f08e0 #6 0x00007ffff5ec9d5f in QSGBatchRenderer::Renderer::renderMergedBatch(QSGBatchRenderer::Batch const*) (this=0x5555591f08e0, batch=0x555558b32ae0) at scenegraph/coreapi/qsgbatchrenderer.cpp:2360 offset = <optimized out> i = 0 gn = <optimized out> sms = 0x55555932aed0 attrNames = 0x7ffff6382e10 <QSGOpaqueTextureMaterialShader::attributeNames() const::attr> e = <optimized out> dirty = <optimized out> indexBase = 0x0 indexBuf = 0x555558b32b18 material = <optimized out> program = <optimized out> batch = 0x555558b32ae0 this = 0x5555591f08e0 #7 0x00007ffff5ecafa5 in QSGBatchRenderer::Renderer::renderBatches() (this=this@entry=0x5555591f08e0) at scenegraph/coreapi/qsgbatchrenderer.cpp:2569 b = <optimized out> i = 2 r = {x1 = <optimized out>, y1 = <optimized out>, x2 = <optimized out>, y2 = 2159} renderOpaque = <optimized out> renderAlpha = 255 #8 0x00007ffff5ed06f4 in QSGBatchRenderer::Renderer::render() (this=<optimized out>) at scenegraph/coreapi/qsgbatchrenderer.cpp:2763 timer = {t1 = -9223372036854775808, t2 = -9223372036854775808} timeRenderLists = 0 timePrepareOpaque = 0 timePrepareAlpha = 0 timeSorting = 0 timeUploadOpaque = 0 timeUploadAlpha = 0 largestVBO = <optimized out> largestIBO = 1512 #9 0x00007ffff5ec1070 in QSGRenderer::renderScene(QSGBindable const&) (this=0x5555591f08e0, bindable=...) at scenegraph/coreapi/qsgrenderer.cpp:243 bindTime = 0 renderTime = 0 this = 0x5555591f08e0 bindable = <optimized out> #10 0x00007ffff5ec152b in QSGRenderer::renderScene(unsigned int) (this=<optimized out>, fboId=<optimized out>) at scenegraph/coreapi/qsgrenderer.cpp:196 bindable = warning: RTTI symbol not found for class 'QSGRenderer::renderScene(unsigned int)::B' {<QSGBindable> = {_vptr.QSGBindable = 0x7ffff638b418 <vtable for QSGRenderer::renderScene(unsigned int)::B+16>}, <No data fields>} #11 0x00007ffff5efb870 in QSGDefaultRenderContext::renderNextFrame(QSGRenderer*, unsigned int) (this=0x5555586f3ba0, renderer=0x5555591f08e0, fboId=<optimized out>) at scenegraph/qsgdefaultrendercontext.cpp:181 #12 0x00007ffff5f59468 in QQuickWindowPrivate::renderSceneGraph(QSize const&) (this=this@entry=0x5555592c4bc0, size=...) at items/qquickwindow.cpp:474 fboId = <optimized out> devicePixelRatio = 1 _qml_memory_scope = {static state = QQmlMemoryScope::Failed, pushed = false} #13 0x00007ffff5eeddc9 in QSGGuiThreadRenderLoop::renderWindow(QQuickWindow*) (this=0x55555840a640, window=<optimized out>) at scenegraph/qsgrenderloop.cpp:429 current = <optimized out> alsoSwap = true lastDirtyWindow = <optimized out> i = <optimized out> renderTimer = {t1 = -9223372036854775808, t2 = -9223372036854775808} renderTime = 0 syncTime = 0 polishTime = 0 swapTime = <optimized out> #14 0x00007ffff5f63036 in QQuickWindow::event(QEvent*) (this=this@entry=0x555556211b70, e=e@entry=0x7fffffffdb10) at items/qquickwindow.cpp:1588 #15 0x00007ffef81941c3 in PlasmaQuick::Dialog::event(QEvent*) (this=0x555556211b70, event=0x7fffffffdb10) at /usr/src/debug/kf5-plasma-5.44.0-1.fc27.x86_64/src/plasmaquick/dialog.cpp:1305 #16 0x00007fffee71292c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x55555578bd20, receiver=receiver@entry=0x555556211b70, e=e@entry=0x7fffffffdb10) at kernel/qapplication.cpp:3722 consumed = <optimized out> #17 0x00007fffee71a174 in QApplication::notify(QObject*, QEvent*) (this=0x7fffffffe1d0, receiver=0x555556211b70, e=0x7fffffffdb10) at kernel/qapplication.cpp:3481 w = 0x555556211b70 extra = <optimized out> isProxyWidget = <optimized out> res = false #18 0x00007fffed8a1be7 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=receiver@entry=0x555556211b70, event=event@entry=0x7fffffffdb10) at kernel/qcoreapplication.cpp:1016 selfRequired = true result = false cbdata = {0x555556211b70, 0x7fffffffdb10, 0x7fffffffdabf} d = <optimized out> threadData = 0x555555761330 scopeLevelCounter = {threadData = 0x555555761330} #19 0x00007fffeddffe91 in QCoreApplication::sendEvent(QObject*, QEvent*) (event=0x7fffffffdb10, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233 request = {_vptr.QEvent = 0x7fffedcede10 <vtable for QEvent+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7fffed9f91a0 <qt_meta_stringdata_QEvent>, data = 0x7fffed9f8be0 <qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}, d = 0x0, t = 77, posted = 0, spont = 0, m_accept = 1, reserved = 2756} #20 0x00007fffeddffe91 in QWindowPrivate::deliverUpdateRequest() (this=this@entry=0x5555592c4bc0) at kernel/qwindow.cpp:2305 request = {_vptr.QEvent = 0x7fffedcede10 <vtable for QEvent+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7fffed9f91a0 <qt_meta_stringdata_QEvent>, data = 0x7fffed9f8be0 <qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}, d = 0x0, t = 77, posted = 0, spont = 0, m_accept = 1, reserved = 2756} #21 0x00007fffede003a9 in QWindow::event(QEvent*) (this=this@entry=0x555556211b70, ev=ev@entry=0x7fffffffdf40) at kernel/qwindow.cpp:2276 #22 0x00007ffff5f62fd5 in QQuickWindow::event(QEvent*) (this=this@entry=0x555556211b70, e=e@entry=0x7fffffffdf40) at items/qquickwindow.cpp:1607 #23 0x00007ffef81941c3 in PlasmaQuick::Dialog::event(QEvent*) (this=0x555556211b70, event=0x7fffffffdf40) at /usr/src/debug/kf5-plasma-5.44.0-1.fc27.x86_64/src/plasmaquick/dialog.cpp:1305 #24 0x00007fffee71292c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x55555578bd20, receiver=receiver@entry=0x555556211b70, e=e@entry=0x7fffffffdf40) at kernel/qapplication.cpp:3722 consumed = <optimized out> #25 0x00007fffee71a174 in QApplication::notify(QObject*, QEvent*) (this=0x7fffffffe1d0, receiver=0x555556211b70, e=0x7fffffffdf40) at kernel/qapplication.cpp:3481 w = 0x555556211b70 extra = <optimized out> isProxyWidget = <optimized out> res = false #26 0x00007fffed8a1be7 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x555556211b70, event=event@entry=0x7fffffffdf40) at kernel/qcoreapplication.cpp:1016 selfRequired = true result = false cbdata = {0x555556211b70, 0x7fffffffdf40, 0x7fffffffdecf} d = <optimized out> threadData = 0x555555761330 scopeLevelCounter = {threadData = 0x555555761330} #27 0x00007fffed8f1f5b in QCoreApplication::sendEvent(QObject*, QEvent*) (event=0x7fffffffdf40, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233 e = {<QEvent> = {_vptr.QEvent = 0x7fffedcede30 <vtable for QTimerEvent+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7fffed9f91a0 <qt_meta_stringdata_QEvent>, data = 0x7fffed9f8be0 <qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}, d = 0x0, t = 1, posted = 0, spont = 0, m_accept = 1, reserved = 0}, id = 14} currentTimerInfo = 0x0 n_act = 2 maxCount = <optimized out> currentTime = {tv_sec = 506, tv_nsec = 958280107} #28 0x00007fffed8f1f5b in QTimerInfoList::activateTimers() (this=this@entry=0x5555557e1f80) at kernel/qtimerinfo_unix.cpp:643 e = {<QEvent> = {_vptr.QEvent = 0x7fffedcede30 <vtable for QTimerEvent+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7fffed9f91a0 <qt_meta_stringdata_QEvent>, data = 0x7fffed9f8be0 <qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}, d = 0x0, t = 1, posted = 0, spont = 0, m_accept = 1, reserved = 0}, id = 14} currentTimerInfo = 0x0 n_act = 2 maxCount = <optimized out> currentTime = {tv_sec = 506, tv_nsec = 958280107} #29 0x00007fffed8ef31c in QEventDispatcherUNIXPrivate::activateTimers() (this=this@entry=0x5555557e1ee0) at kernel/qeventdispatcher_unix.cpp:249 #30 0x00007fffed8f02d8 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=<optimized out>, flags=...) at kernel/qeventdispatcher_unix.cpp:514 d = 0x5555557e1ee0 include_timers = true canWait = <optimized out> tm = <optimized out> wait_tm = {tv_sec = 0, tv_nsec = 0} nevents = 1 #31 0x00007fffd6b16f6d in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=<optimized out>, flags=...) at qunixeventdispatcher.cpp:68 didSendEvents = <optimized out> #32 0x00007fffed8a096a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fffffffe0e0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212 d = 0x5555557edc30 locker = {val = 93824994387632} ref = {d = 0x5555557edc30, locker = @0x7fffffffe068, exceptionCaught = true} #33 0x00007fffed8a9094 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1289 threadData = 0x555555761330 eventLoop = {<QObject> = {_vptr.QObject = 0x7fffedcedbc8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7fffed9fd6c0 <qt_meta_stringdata_QObject>, data = 0x7fffed9fd5a0 <qt_meta_data_QObject>, static_metacall = 0x7fffed8d20d0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x5555557edc30}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7fffeda00360 <qt_meta_stringdata_Qt>, data = 0x7fffed9fd7e0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7fffedce6280 <QObject::staticMetaObject>, stringdata = 0x7fffed9f82c0 <qt_meta_stringdata_QEventLoop>, data = 0x7fffed9f8260 <qt_meta_data_QEventLoop>, static_metacall = 0x7fffed8a0660 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}} returnCode = <optimized out> #34 0x00007ffff7bd317b in kdemain(int, char**) (argc=<optimized out>, argv=0x7fffffffe368) at /usr/src/debug/kwin-5.12.2-1.fc27.x86_64/main_x11.cpp:468 primaryScreen = 0 c = 0x0 number_of_screens = <optimized out> a = {<KWin::Application> = {<No data fields>}, static staticMetaObject = {d = {superdata = 0x7ffff7bbfb40 <KWin::Application::staticMetaObject>, stringdata = 0x7ffff7bd5020 <qt_meta_stringdata_KWin__ApplicationX11>, data = 0x7ffff7bd4fc0 <qt_meta_data_KWin__ApplicationX11>, static_metacall = 0x7ffff7bd45f0 <KWin::ApplicationX11::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, owner = {d = 0x5555557ec1e0}, m_replace = false} replaceOption = {d = {d = 0x5555557e5f60}} parser = {d = 0x5555557c7cc0} noActivitiesOption = {d = {d = 0x5555557f3970}} plugins = {d = 0x5555557f2f20} helper = <incomplete type> #35 0x00007fffec9d2f2a in __libc_start_main () at /lib64/libc.so.6 #36 0x0000555555554c1a in _start () <div class="HOEnZb"><div class="h5">_______________________________________________ mesa-dev mailing list <a href="mailto:mesa-dev@lists.freedesktop.org">mesa-dev@lists.freedesktop.org</a> <a href="https://lists.freedesktop.org/mailman/listinfo/mesa-dev" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/mesa-dev</a> </div></div></blockquote></div> </div>