diff -ru a/sql/sql_connect.cc b/sql/sql_connect.cc
--- a/sql/sql_connect.cc	2009-02-14 09:56:08.000000000 +0900
+++ b/sql/sql_connect.cc	2009-03-13 18:42:38.000000000 +0900
@@ -336,6 +336,9 @@
   {
     my_error(ER_NOT_SUPPORTED_AUTH_MODE, MYF(0));
     general_log_print(thd, COM_CONNECT, ER(ER_NOT_SUPPORTED_AUTH_MODE));
+    statistic_increment(aborted_connects,&LOCK_status);
+    if (!thd->killed && thd->variables.log_warnings > 1)
+      sql_print_warning(ER(ER_NOT_SUPPORTED_AUTH_MODE));
     DBUG_RETURN(1);
   }
   if (passwd_len != 0 &&
@@ -366,6 +369,8 @@
       general_log_print(thd, COM_CONNECT, ER(ER_SERVER_IS_IN_SECURE_AUTH_MODE),
                         thd->main_security_ctx.user,
                         thd->main_security_ctx.host_or_ip);
+      if (!thd->killed && thd->variables.log_warnings > 1)
+        sql_print_warning(ER(ER_SERVER_IS_IN_SECURE_AUTH_MODE));
       DBUG_RETURN(1);
     }
     /* We have to read very specific packet size */
@@ -479,6 +484,8 @@
   {
     my_error(ER_NOT_SUPPORTED_AUTH_MODE, MYF(0));
     general_log_print(thd, COM_CONNECT, ER(ER_NOT_SUPPORTED_AUTH_MODE));
+    if (!thd->killed && thd->variables.log_warnings > 1)
+      sql_print_warning(ER(ER_NOT_SUPPORTED_AUTH_MODE));
     DBUG_RETURN(1);
   }
   my_error(ER_ACCESS_DENIED_ERROR, MYF(0),
@@ -489,6 +496,13 @@
                     thd->main_security_ctx.user,
                     thd->main_security_ctx.host_or_ip,
                     passwd_len ? ER(ER_YES) : ER(ER_NO));
+  if (!thd->killed && thd->variables.log_warnings > 1)
+  {
+    sql_print_warning(ER(ER_ACCESS_DENIED_ERROR),
+                      thd->main_security_ctx.user,
+                      thd->main_security_ctx.host_or_ip,
+                      passwd_len ? ER(ER_YES) : ER(ER_NO));
+  }
   DBUG_RETURN(1);
 #endif /* NO_EMBEDDED_ACCESS_CHECKS */
 }
@@ -917,7 +931,6 @@
   {
     close_connection(thd, ER_OUT_OF_RESOURCES, 1);
     statistic_increment(aborted_connects,&LOCK_status);
-    thread_scheduler.end_thread(thd, 0);
     return 1;                                   // Error
   }
   return 0;
diff -ru a/sql/sql_db.cc b/sql/sql_db.cc
--- a/sql/sql_db.cc	2009-02-14 09:56:08.000000000 +0900
+++ b/sql/sql_db.cc	2009-03-13 18:42:51.000000000 +0900
@@ -1620,6 +1620,9 @@
              new_db_file_name.str);
     general_log_print(thd, COM_INIT_DB, ER(ER_DBACCESS_DENIED_ERROR),
                       sctx->priv_user, sctx->priv_host, new_db_file_name.str);
+    if (!thd->killed && thd->variables.log_warnings > 1)
+      sql_print_warning(ER(ER_DBACCESS_DENIED_ERROR),
+                        sctx->priv_user, sctx->priv_host, new_db_file_name.str);
     my_free(new_db_file_name.str, MYF(0));
     DBUG_RETURN(TRUE);
   }
diff -ru a/sql/sql_show.cc b/sql/sql_show.cc
--- a/sql/sql_show.cc	2009-02-14 09:56:10.000000000 +0900
+++ b/sql/sql_show.cc	2009-03-13 18:43:03.000000000 +0900
@@ -709,6 +709,9 @@
              sctx->priv_user, sctx->host_or_ip, dbname);
     general_log_print(thd,COM_INIT_DB,ER(ER_DBACCESS_DENIED_ERROR),
                       sctx->priv_user, sctx->host_or_ip, dbname);
+    if (!thd->killed && thd->variables.log_warnings > 1)
+      sql_print_warning(ER(ER_DBACCESS_DENIED_ERROR),
+                        sctx->priv_user, sctx->host_or_ip, dbname);
     DBUG_RETURN(TRUE);
   }
 #endif