nginx error.log看看
2013/07/01 20:21:53 [error] 4325#0: *1212 upstream prematurely closed connection while reading response header from upstream, client: 192.168.139.119, server: localhost, request: "GET ", upstream: "http://127.0.0.1:6080/hm.gif?cc=1&ck=1&cl=24-bit&ds=1440x900&ep=1919952%2C709&et=3&fl=11.6&ja=1&ln=zh-CN&lo=0<=1372678939&nv=0&rnd=185782742&si=f8d418c6b1c41368e6178f76d1276e53&st=4&su=http%3A%2F%2Fbbs.bccn.net%2Flogging.php%3Faction%3Dlogin%26loginsubmit%3Dtrue&v=1.0.45&lv=3&u=http%3A%2F%2Fbbs.bccn.net%2F", host: "hm.baidu.com", referrer: "http://bbs.bccn.net/\" target=\"_blank\">https://hm.baidu.com/hm.gif?cc=1&ck=1&cl=24-bit&ds=1440x900&ep=1919952%2C709&et=3&fl=11.6&ja=1&ln=zh-CN&lo=0<=1372678939&nv=0&rnd=185782742&si=f8d418c6b1c41368e6178f76d1276e53&st=4&su=http%3A%2F%2Fbbs.bccn.net%2Flogging.php%3Faction%3Dlogin%26loginsubmit%3Dtrue&v=1.0.45&lv=3&u=http%3A%2F%2Fbbs.bccn.net%2F HTTP/1.1", upstream: "http://127.0.0.1:6080/hm.gif?cc=1&ck=1&cl=24-bit&ds=1440x900&ep=1919952%2C709&et=3&fl=11.6&ja=1&ln=zh-CN&lo=0<=1372678939&nv=0&rnd=185782742&si=f8d418c6b1c41368e6178f76d1276e53&st=4&su=http%3A%2F%2Fbbs.bccn.net%2Flogging.php%3Faction%3Dlogin%26loginsubmit%3Dtrue&v=1.0.45&lv=3&u=http%3A%2F%2Fbbs.bccn.net%2F", host: "hm.baidu.com", referrer: "http://bbs.bccn.net/"