Comment 3 for bug 43154

Created an attachment (id=4010)
Demo program

This small program is suffering from the described bug. It should display two
rotating triangles (blue and white) but it hangs instead. I've made a program
intentionally simple (no real textures - just autogenerated plain color, no GLU
calls for mipmapping etc) so it has minimum GL calls. To make the program work,
one should either change mipmapping mode or render texture on both triangles.
You will find the comments on which line to remove/modify inside the file. The
bug is highly reproducable with this program but in rare cases you may need to
run the program several times before it hang the computer.