call mtr.add_suppression("InnoDB: Difficult to find free blocks in the buffer pool");
SET @saved_debug = @@SESSION.debug_dbug;
SET SESSION debug_dbug="+d,ib_lru_force_no_free_page";
CREATE TABLE t1 (j LONGBLOB) ENGINE = InnoDB;
BEGIN;
INSERT INTO t1 VALUES (repeat('abcdefghijklmnopqrstuvwxyz',200));
COMMIT;
SET debug_dbug = @saved_debug;
DROP TABLE t1;
FOUND 1 /InnoDB: Difficult to find free blocks / in mysqld.1.err