openGL: pbuffer in thread and nvidia

[ZHawk]

noone got any idea ?

[Statix]

How are you updating the pbuffer from other threads, specifically, are you trying to allocate textures in those other threads and render to the pbuffer because it may be something specific with pbuffers and nvidia's opengl impl where things which receive device id's such as texture id's or glx ids can only be created in the main thread but manipulated from others, if you are creating them from other threads typically this crashes the thread.

[ZHawk]

the pbuffer is created and initialized with oGL settings in the main thread. it is also bound to a dynamic texture in the main thread.
the thread does:
- switch context to pbuffer (main thread will not get context until rendering is done: locked)
- render scene
- update dynamic texture (if auto update is not available) (also tried to force an update)

once the thread is done the main thread will print the scene:
- switch context to main
- print dynamic texture

btw:
the thread never crashes