[osg-users] How to debug this SIGSEGV

[OpenSceneGraph Users]

Also, when I do *not* get the crash, I do get the following warning:

Warning: detected OpenGL error 'invalid value' at after RenderBin::draw(..)

Maybe there's some connection? How do I go about finding the invalid value 
that is mentioned here?

Thank you!

On Friday, May 22, 2020 at 4:53:26 PM UTC-5, Erik Hensens wrote:
>
> Hello! I am totally at a loss and I hope someone can help me. I've got a 
> Gtk application running on Ubuntu that uses osgGtk to display the scene. 
> The crash does not happen every time I do the same operation, only 
> sometimes. As you can see, the crash is in libosg. I guess that I'm doing 
> something wrong in an Osg call somewhere and the crash is just happening 
> asynchronously? Either way I have absolutely no idea how to approach fixing 
> this crash. Please help me! Here's a typical backtrace. Does anyone have 
> any ideas? Thank you all so much in advance!
>
> - Erik
>
> #0  0x00007fffd2e90eea in ?? () from 
> /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
> #1  0x00007fffd2d2f5e0 in ?? () from 
> /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
> #2  0x00007fffd2e9ddb0 in ?? () from 
> /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
> #3  0x00007ffff55af488 in 
> osg::Geometry::drawImplementation(osg::RenderInfo&) const () from 
> /usr/lib/x86_64-linux-gnu/libosg.so.100
> #4  0x00007ffff47d1380 in osgUtil::RenderLeaf::render(osg::RenderInfo&, 
> osgUtil::RenderLeaf*) () from /usr/lib/x86_64-linux-gnu/libosgUtil.so.100
> #5  0x00007ffff47cb695 in 
> osgUtil::RenderBin::drawImplementation(osg::RenderInfo&, 
> osgUtil::RenderLeaf*&) () from /usr/lib/x86_64-linux-gnu/libosgUtil.so.100
> #6  0x00007ffff47cb6d4 in 
> osgUtil::RenderBin::drawImplementation(osg::RenderInfo&, 
> osgUtil::RenderLeaf*&) () from /usr/lib/x86_64-linux-gnu/libosgUtil.so.100
> #7  0x00007ffff47d6ed7 in 
> osgUtil::RenderStage::drawImplementation(osg::RenderInfo&, 
> osgUtil::RenderLeaf*&) () from /usr/lib/x86_64-linux-gnu/libosgUtil.so.100
> #8  0x00007ffff47d5cd2 in 
> osgUtil::RenderStage::drawInner(osg::RenderInfo&, osgUtil::RenderLeaf*&, 
> bool&) () from /usr/lib/x86_64-linux-gnu/libosgUtil.so.100
> #9  0x00007ffff47d7c7f in osgUtil::RenderStage::draw(osg::RenderInfo&, 
> osgUtil::RenderLeaf*&) () from /usr/lib/x86_64-linux-gnu/libosgUtil.so.100
> #10 0x00007ffff47dfdb7 in osgUtil::SceneView::draw() () from 
> /usr/lib/x86_64-linux-gnu/libosgUtil.so.100
> #11 0x00007ffff443545f in osgViewer::Renderer::cull_draw() () from 
> /usr/lib/x86_64-linux-gnu/libosgViewer.so.100
> #12 0x00007ffff55cfd49 in osg::GraphicsContext::runOperations() () from 
> /usr/lib/x86_64-linux-gnu/libosg.so.100
> #13 0x00007ffff446c6c4 in osgViewer::ViewerBase::renderingTraversals() () 
> from /usr/lib/x86_64-linux-gnu/libosgViewer.so.100
> #14 0x0000000000a7c73e in 
> osgViewer::ViewerGtk::on_graphics_window_expose_event (widget=0x31134b0, 
> event=0x7fffffffdf10, data=0x456ba50) at Main3D/osgGtk/ViewerGtk.cpp:220
> #15 0x00007ffff78beaec in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
> #16 0x00007ffff6904fa5 in g_closure_invoke () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #17 0x00007ffff6916fc1 in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #18 0x00007ffff691f7f9 in g_signal_emit_valist () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #19 0x00007ffff692008f in g_signal_emit () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #20 0x00007ffff79d693c in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
> #21 0x00007ffff78bd7dd in gtk_main_do_event () from 
> /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
> #22 0x00007ffff7518b9f in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
> #23 0x00007ffff7515671 in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
> #24 0x00007ffff7515fa8 in gdk_window_process_all_updates () from 
> /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
> #25 0x00007ffff7842971 in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
> #26 0x00007ffff74f4d57 in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
> #27 0x00007ffff662e04a in g_main_context_dispatch () from 
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #28 0x00007ffff662e3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #29 0x00007ffff662e712 in g_main_loop_run () from 
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #30 0x00007ffff78bc697 in gtk_main () from 
> /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
> #31 0x000000000130f9a6 in main (argc=1, argv=0x7fffffffe398) at 
> Main/main.cpp:3889
>
>
>
>

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