How to avoid "too big header" issue?

[stalkercn]

fastcgi_buffer doesn't work,I tried proxy method,it seems working for
me,but slowly:

nginx.log
2011/04/29 11:02:57 [debug] 33323#0: kevent timer: 61402, changes: 0
2011/04/29 11:03:02 [debug] 33323#0: kevent events: 1

When nginx handle one file,the time between two lines is 5 secs,why
here?

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,192785,194392#msg-194392