hi all

Modify nginx.conf

error_log /data0/logs/nginx_error.log notice;
#error_log /data0/logs/nginx_error.log debug;

log are as follows

web download normal
wifi download normal
mobile 3G (WCDMA) download frequently interrupted

2011/09/08 19:54:49 [info] 20098#0: *1137837 client closed prematurely connection while reading client request line, client: 59.108.246.154, server: static.nduoa.com
2011/09/08 19:54:49 [info] 20098#0: *1137838 client closed prematurely connection while reading client request line, client: 59.108.246.154, server: static.nduoa.com
2011/09/08 19:54:49 [info] 20099#0: *1130906 client closed prematurely connection while sending response to client, client: 120.196.170.2, server: static.nduoa.com, request: "GET /apk/22/22881/com.popcap.pvz.apk HTTP/1.1", host: "static.nduoa.com"