Index: modules/ssl/ssl_engine_io.c
===================================================================
--- modules/ssl/ssl_engine_io.c	(revision 1230051)
+++ modules/ssl/ssl_engine_io.c	(working copy)
@@ -472,6 +472,11 @@
                                    AP_MODE_READBYTES, block,
                                    inl);
 
+        ap_log_cerror(APLOG_MARK, APLOG_TRACE7, inctx->rc, inctx->f->c,
+                      "read of %d bytes => %d, mode = %sblocking, brigade is %sempty",
+                      inlen, inctx->rc, block == APR_NONBLOCK_READ ? "non-" : "",
+                      APR_BRIGADE_EMPTY(inctx->bb) ? "" : "non-");
+
         /* If the read returns EAGAIN or success with an empty
          * brigade, return an error after setting the retry flag;
          * SSL_read() will then return -1, and SSL_get_error() will