Nginx not implemented error using 1.5.3

compile.sh

./configure --prefix=/var/lib/nginx --sbin-path=/usr/local/sbin --conf-path=/etc/nginx/nginx.conf --pid-path=/var/run/nginx/nginx.pid --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --without-http-cache

make

make install

Log

2013/08/02 17:01:11 [warn] 26#0: *7 a client request body is buffered to a temporary file /var/lib/nginx/client_body_temp/0000000001, client: 172.16.42.1, server: , request: "POST /tenants/cwstest/stunts/51fbe5d696bb27002d000001/uploads/51fbe5d796bb27002d000002/encrypt HTTP/1.1", host: "localhost:49172"

2013/08/02 17:01:11 [crit] 26#0: *7 writev() "/var/lib/nginx/client_body_temp/0000000001" failed (38: Function not implemented), client: 172.16.42.1, server: , request: "POST /tenants/cwstest/stunts/51fbe5d696bb27002d000001/uploads/51fbe5d796bb27002d000002/encrypt HTTP/1.1", host: "localhost:49172"

nginx.conf

worker_processes 1;
daemon off;
#master_process off;

events {
  worker_connections 1024;
}

http {
  include       /etc/nginx/mime.types;
  default_type  application/octet-stream;
  client_max_body_size 200M;

  server {
    listen 80 default_server;

    location / {
      proxy_pass http://unix:/var/run/app/unicorn.sock:/;
      proxy_set_header  X-Forwarded-Host   "$http_x_forwarded_host, $http_host";
      proxy_set_header  X-Forwarded-For    "$proxy_add_x_forwarded_for";
      proxy_set_header  X-Forwarded-Prefix "$http_x_forwarded_prefix";
    }
  } 
}

post.sh

curl -i -F name=test -F filedata=@localfile.jpg http://localhost:49172/tenants/cwstest/stunts/51fbe5d696bb27002d000001/uploads/51fbe5d796bb27002d000002/encrypt