innodb.group_commit_crash failed in buildbot with "Unknown storage engine 'InnoDB'"

innodb.group_commit_crash 'innodb'       w2 [ fail ]

        Test ended at 2017-09-30 20:52:50

CURRENT_TEST: innodb.group_commit_crash

mysqltest: At line 74: query 'SELECT * FROM t1 ORDER BY id' failed: 1286: Unknown storage engine 'InnoDB'

The result from queries just before the failure was:

< snip >

SET binlog_format= mixed;

RESET MASTER;

START TRANSACTION;

insert into t1 select * from t2;

call setcrash(5);

COMMIT;

Got one of the listed errors

SELECT * FROM t1 ORDER BY id;

a	b	c	d	id

SHOW BINLOG EVENTS LIMIT 4,1;

Log_name	Pos	Event_type	Server_id	End_log_pos	Info

delete from t1;

SET binlog_format= mixed;

RESET MASTER;

START TRANSACTION;

insert into t1 select * from t2;

call setcrash(4);

COMMIT;

Got one of the listed errors

SELECT * FROM t1 ORDER BY id;

More results from queries before failure can be found in /opt/buildbot-slave/mariadb/starfsmenn1/build/mysql-test/var/2/log/group_commit_crash.log

 - skipping '/opt/buildbot-slave/mariadb/starfsmenn1/build/mysql-test/var/2/log/innodb.group_commit_crash-innodb/'

Retrying test innodb.group_commit_crash, attempt(2/3)...

worker[2] > Restart  - not started

***Warnings generated in error logs during shutdown after running tests: innodb.group_commit_crash

2017-09-30 20:52:49 140315928561536 [ERROR] InnoDB: Checksum mismatch in datafile: ./test/t2.ibd, Space ID:5, Flags: 33. Please refer to http://dev.mysql.com/doc/refman/5.7/en/innodb-troubleshooting-datadict.html for how to resolve the issue.

2017-09-30 20:52:49 140315928561536 [ERROR] InnoDB: Datafile './test/t2.ibd' is corrupted. Cannot determine the space ID from the first 64 pages.

2017-09-30 20:52:49 140315928561536 [ERROR] InnoDB: Tablespace 5 was not found at ./test/t2.ibd.

2017-09-30 20:52:49 140315928561536 [ERROR] InnoDB: Set innodb_force_recovery=1 to ignore this and to permanently lose all changes to the tablespace.

2017-09-30 20:52:49 140315928561536 [ERROR] InnoDB: Plugin initialization aborted at srv0start.cc[2229] with error Tablespace not found

2017-09-30 20:52:50 140315928561536 [ERROR] Plugin 'InnoDB' init function returned error.

2017-09-30 20:52:50 140315928561536 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.