nginx 504 Gateway Time-out???

arkue

# lsb_release -a
LSB Version:    core-2.0-noarch:core-3.0-noarch:core-2.0-x86_64:core-3.0-x86_64:desktop-3.1-amd64:desktop-3.1-noarch:graphics-2.0-amd64:graphics-2.0-noarch:graphics-3.1-amd64:graphics-3.1-noarch
Distributor ID: SUSE LINUX
Description:    SUSE Linux Enterprise Server 10 (x86_64)
Release:        10
Codename:       n/a


nginx/1.0.4
504 Gateway Time-out

# tail /var/log/nginx/error.log
2012/03/21 10:20:04 [error] 13646#0: *71238 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 127.0.0.1, server: localhost, request: "GET /favicon.ico HTTP/1.0", upstream: "http://127.0.0.1:80/favicon.ico", host: "ip"


如何解决呢？