--- a/modules/fcgid/fcgid_bridge.c	2013-06-07 14:44:23.000000000 +1000
+++ a/modules/fcgid/fcgid_bridge.c	2013-06-07 14:51:23.000000000 +1000
@@ -580,6 +580,18 @@ 
                                           "temporary file");
                             return HTTP_INTERNAL_SERVER_ERROR;
                         }
+                        /* The version of APR bundled width Apache 2.2.3 as used in  */
+                        /* RHEL/CentOS 5 doesn't properly seek in apr_file_trunc     */
+                        /* so do it manually, worst case should be a redundant lseek */
+                        /* and if we don't we break Keep-Alive POSTs that are larger */
+                        /* than FcgidMaxRequestInMem on RHEL/CentOS 5.x              */
+                        apr_off_t zero = 0;
+                        if (rv = apr_file_seek(fd, SEEK_SET, &zero) != APR_SUCCESS) {
+                            ap_log_rerror(APLOG_MARK, APLOG_WARNING, rv, r,
+                                          "mod_fcgid: can't seek to start of "
+                                          "temporary file");
+                            return HTTP_INTERNAL_SERVER_ERROR;
+                        }
                     }
                 }