nginx-0.3.42-RELEASE importrelease-0.3.42

    *) Feature: the "bind" option of the "listen" directive in IMAP/POP3
       proxy.

    *) Bugfix: if the same capture in the "rewrite" directive was used more
       then once.

    *) Bugfix: the $sent_http_content_type, $sent_http_content_length,
       $sent_http_last_modified, $sent_http_connection,
       $sent_http_keep_alive, and $sent_http_transfer_encoding variables
       were not written to access log.

    *) Bugfix: the $sent_http_cache_control returned value of the single
       "Cache-Control" response header line.

1 files changed, 16 insertions, 0 deletions

diff --git a/src/http/ngx_http_postpone_filter_module.c b/src/http/ngx_http_postpone_filter_module.c
index 20a78a00c..76deaa4c8 100644
--- a/src/http/ngx_http_postpone_filter_module.c
+++ b/src/http/ngx_http_postpone_filter_module.c
@@ -89,6 +89,22 @@ ngx_http_postpone_filter(ngx_http_request_t *r, ngx_chain_t *in)
             return NGX_ERROR;
         }
 
+#if 1
+        {
+        ngx_chain_t  *cl;
+        ngx_buf_t    *b = NULL;
+        for (cl = pr->out; cl; cl = cl->next) {
+            if (cl->buf == b) {
+                ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
+                              "the same buf was used in postponed");
+                ngx_debug_point();
+                return NGX_ERROR;
+            }
+            b = cl->buf;
+        }
+        }
+#endif
+
         if (r != r->connection->data || r->postponed->request) {
             return NGX_AGAIN;
         }