--- mod_nss-1.0.3.orig/nss_engine_io.c	2006-04-07 16:17:12.000000000 -0400
+++ mod_nss-1.0.3/nss_engine_io.c	2009-02-17 22:51:44.000000000 -0500
@@ -259,7 +259,8 @@
          */
         if (APR_STATUS_IS_EAGAIN(inctx->rc) || APR_STATUS_IS_EINTR(inctx->rc)
                || (inctx->rc == APR_SUCCESS && APR_BRIGADE_EMPTY(inctx->bb))) {
-            return 0;
+            PR_SetError(PR_WOULD_BLOCK_ERROR, 0);
+            return -1;
         }
 
         if (inctx->rc != APR_SUCCESS) {