On Thu, Sep 10, 2009 at 11:26:14AM +0200, Dinh Pham wrote:

> Hi all,
>
> I installed Nginx 0.8.14 to try out a new feature: AIO support. Also, I
> compiled Nginx with --with-file-aio
>
> However, Nginx show warnings that it does not support AIO:
>
> Starting nginx: [emerg]: unknown directive "aio" in
> /usr/local/nginx/nginx.conf:46
>
> Here is my configuration
>
> location ~* ^\/files\/(.+) {
> alias /home/files/$1;
> internal;
> aio on;
> # sendfile off;
> directio 512;
> }
>
> Is this feature experimental and withdrawn?

Could you show this ./configure line:
checking for Linux AIO support ...
?

Probabaly, your kernel does not support eventfd(), it's available since
2.6.22 only.

BTW, instead of

location ~* ^\/files\/(.+) {
alias /home/files/$1;

it's better to use just

location /files/ {
root /home;


--
Igor Sysoev
http://sysoev.ru/en/