Home/ Questions/Q 72783
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-10T20:05:55+00:00

I have an application that is built against OpenSceneGraph (2.6.1) and therefore indirectly OpenGL.

  • 0

I have an application that is built against OpenSceneGraph (2.6.1) and therefore indirectly OpenGL. The application initializes and begins to run, but then I get the following exception ‘attempt was made to execute an invalid lock sequence’ in OpenGL32.dll. When I re-run it, I sometimes get this exception, and sometimes an exception about a ‘privileged instruction’. The call stack looks like it is corrupted, so I can’t really tell exactly where the exception is being thrown from. I ran the app quite a bit a couple of days ago and never saw this behavior. Since then I have added an else clause to a couple of ifs, and that is all. My app is a console application, is built with Visual Studio 2008, and it sets OpenScenGraph to SingleThreaded mode. Anybody seen this before? Any debugging tips?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Can you reproduce it with one of the standard examples?
    Can you create a minimal app that causes this?
    Do you have a machine with a different brand video card you can test it on (eg Nvidia vs. ATI) there are some issues with openscenegraph and bad OpenGL drivers.

    Have you tried posting to osg-users@lists.openscenegraph.org

    • 0