From b316011ab5e63ae72ccd2ebd41ace853d8d3882f Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Wed, 22 Jul 2009 13:06:27 +0000
Subject: [PATCH] fix r2972, it caused "zero size buf" alert.

---
 src/http/ngx_http_request.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index a0fcd717f..f07472b33 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -2715,6 +2715,7 @@ ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
             b->last_buf = 1;
 
         } else {
+            b->sync = 1;
             b->last_in_chain = 1;
         }
     }