--- lighttpd-1.4.26/src/http_auth.c.bak	2010-05-24 21:54:12.000000000 +0200
+++ lighttpd-1.4.26/src/http_auth.c	2010-05-24 22:11:52.000000000 +0200
@@ -869,7 +869,7 @@
 		if (AUTH_BACKEND_UNSET == p->conf.auth_backend) {
 			log_error_write(srv, __FILE__, __LINE__, "s", "auth.backend is not set");
 		} else {
-			log_error_write(srv, __FILE__, __LINE__, "s", "get_password failed");
+			log_error_write(srv, __FILE__, __LINE__, "ss", "get_password failed, IP:", inet_ntop_cache_get_ip(srv, &(con->dst_addr)));
 		}
 
 		return 0;