InnoDB shutdown sometimes hangs

innodb.row_format_redundant 'innodb'     w1 [ fail ]

        Test ended at 2017-10-13 18:14:11

CURRENT_TEST: innodb.row_format_redundant

mysqltest: At line 74: query 'SELECT COUNT(*) FROM t1' failed: 1286: Unknown storage engine 'InnoDB'

The result from queries just before the failure was:

< snip >

insert into t1 select * from t1;

insert into t1 select * from t1;

insert into t1 select * from t1;

insert into t1 select * from t1;

insert into t1 select * from t1;

insert into t1 select * from t1;

insert into t1 select * from t1;

insert into t1 select * from t1;

SET GLOBAL innodb_file_per_table=OFF;

create table t2 (a int not null, d varchar(15) not null, b

varchar(198) not null, c char(156), fulltext ftsic(c)) engine=InnoDB

row_format=redundant;

insert into t2 select * from t1;

create table t3 (a int not null, d varchar(15) not null, b varchar(198),

c varchar(150), index k1(c(99), b(56)), index k2(b(5), c(10))) engine=InnoDB

row_format=redundant;

insert into t3 values(444, 'dddd', 'bbbbb', 'aaaaa');

insert into t3 values(555, 'eeee', 'ccccc', 'aaaaa');

SET GLOBAL innodb_fast_shutdown=0;

SELECT COUNT(*) FROM t1;

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

worker[1] > Restart  - not started

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

Attempting backtrace. You can use the following information to find out

2017-10-13 18:14:10 0 [Warning] InnoDB: innodb_read_only prevents crash recovery

2017-10-13 18:14:10 0 [ERROR] InnoDB: Plugin initialization aborted with error Read only transaction

2017-10-13 18:14:10 0 [ERROR] Plugin 'InnoDB' init function returned error.

2017-10-13 18:14:10 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.