Guys did you see that Passenger 3.0.8 was released today, with this in the changelog: Added the options passenger_buffer_size, passenger_buffers and passenger_busy_buffers_size. These options are similar to proxy_module’s similarly named options. You can use these to e.g. increase the maximum header size limit.by pqdbr - Nginx Mailing List - English
We are having the same problem, only today 106 errors like this registered in our log. If anyone has any insights about this, please post a reply, we're desperate to fix this.by pqdbr - Nginx Mailing List - English