set @old_dbug=@@global.debug_dbug;
set global debug_dbug='+d,auth_disconnect';
create user 'bad' identified by 'worse';
set global debug_dbug=@old_dbug;
drop user bad;
set global debug_dbug='+d,auth_invalid_plugin';
create user 'bad' identified by 'worse';
ERROR 1045 (28000): Plugin foo/bar could not be loaded: invalid plugin name
set global debug_dbug=@old_dbug;
drop user bad;
set global debug_dbug='+d,increase_srv_handshake_scramble_len';
connect(localhost,root,,test,MASTER_MYPORT,MYSQL_TMP_DIR/mysqld.1.sock);
connect con1,localhost,root;
ERROR HY000: Received malformed packet
set global debug_dbug=@old_dbug;
set global debug_dbug='+d,poison_srv_handshake_scramble_len';
connect(localhost,root,,test,MASTER_MYPORT,MYSQL_TMP_DIR/mysqld.1.sock);
connect con2,localhost,root;
ERROR HY000: Received malformed packet
set global debug_dbug=@old_dbug;