[Bug 20669] Certain objects found in game cause EQ2 to crash.

http://bugs.winehq.org/show_bug.cgi?id=20669

--- Comment #12 from Henri Verbeet   2010-03-04 06:37:54 ---
(In reply to comment #11)
> The buffer_map entry TRACE is printed, but the one where it prints the returned
> address isn't. So it is crashing somewhere in this function. The backtrace
> doesn't contain any helpful infos.

Well, it's clearly dereferencing a NULL pointer, possibly inside libGL.

Since the game seems to be doing quite a bit of cleanup at this point, the
first thing you want to check is if you've got a *valid* GL context. You may
also want to explicitly check if you return from the GL_EXTCALL's.