Client tests (main.mysql_client_test, main.mysql_client_test_nonblock, main.mysql_client_test_comp) fail in buildbot on Power

main.mysql_client_test                   w1 [ fail ]

        Test ended at 2016-09-25 05:37:51

CURRENT_TEST: main.mysql_client_test

mysqltest: At line 19: exec of '/home/buildbot/maria-slave/p8-rhel6-bintar/build/tests/mysql_client_test --defaults-file=/home/buildbot/maria-slave/p8-rhel6-bintar/build/mysql-test/var/1/my.cnf --testcase --vardir=/home/buildbot/maria-slave/p8-rhel6-bintar/build/mysql-test/var/1 --getopt-ll-test=25600M >> /home/buildbot/maria-slave/p8-rhel6-bintar/build/mysql-test/var/1/log/mysql_client_test.out.log 2>&1' failed, error: 256, status: 1, errno: 2

Output from before failure:

call mtr.add_suppression(" Error reading file './client_test_db/test_frm_bug.frm'");

The result from queries just before the failure was:

SET @old_general_log= @@global.general_log;

SET @old_slow_query_log= @@global.slow_query_log;

call mtr.add_suppression(" Error reading file './client_test_db/test_frm_bug.frm'");