[vbox-dev] Minimalist OpenGL program crashing

[Michael Thayer]

Hello Otacílio,

10.11.2016 13:07, Otacílio wrote:
> I'm using this minimalist program to test OpenGL. When running on a true
> machine (FreeBSD 11, clang 3.8.0) this program runs fine. But, when
> compiling and running in a Virtualbox guest with
> virtualbox-ose-additions-5.1.8 installed (FreeBSD 11, clang 3.8.0,
> OpenGL enabled)  I'm getting a core dump when the program exits. So its
> not clear to me if this is a FreeBSD port problem or not. So, please, I
> wold like ask you to compile and running in your's guest machine running
> Linux or FreeBSD and report to me the results.

I can confirm that this affects Linux guests too.  Unfortunately we do 
not have time to investigate X11 guest 3D issues for the foreseeable 
future, so your best bet is probably to debug it yourself.  If you can 
clearly locate the problem (as in understanding it) chances are good 
that we will fix it.

Regards,

Michael

>
> Program:
>
> #include <stdio.h>
> #include <GL/glew.h>
> #include <GL/gl.h>
> #include <GL/glu.h>
> #include <GL/glut.h>
> #include <GL/glext.h>
>
> int main(int argc, char **argv) {
>
>         glutInit(&argc, argv);
>         glutCreateWindow("GLUT");
>         glewInit();
>
>         printf("OpenGL version supported by this platform (%s): \n",
>         glGetString(GL_VERSION));
>
>         fprintf(stdout, "Exiting...\n");
>         fflush(stdout);
>
>         return 0;
> }
>
>
> Compiler command:
>
> cc -I/usr/local/include -L/usr/local/lib -o testegl testegl.c -lGL
> -lGLEW -lGLU   -lglut
>
>
> My results in a guest machine:
>
> [ota at nostromo /usr/home/ota/Desktop]$ ./testegl
> OpenGL version supported by this platform (2.1 Chromium 1.9):
> Exiting...
> Segmentation fault (imagem do núcleo gravada)
>
>
> Thanks a lot!
>
> []'s
>
> -Otacilio
>
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> vbox-dev at virtualbox.org
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-- 
Michael Thayer | VirtualBox engineer
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