> I'll plan to work on this and related problems at the start of
> next year.
>

Hi, is this still somewhere on the priority list ?
The upload_buffer patch attached to this thread does not apply to 1.6.x without changes

It would be a great addition to this cool server.
When dealing with big file uploads there are a lot of problems to deal with if this is not implemented. (client timeout while nginx copies request to proxy, session timeouts during uploads in backend server, since he does not know a transfer is going on, ...)