storage_engine.xa_recovery fails sporadically with "Server failed to dissapear" on server restart

storage_engine/trx-myisam.xa_recovery    [ fail ]

        Test ended at 2014-04-17 01:29:26

CURRENT_TEST: storage_engine/trx-myisam.xa_recovery

mysqltest: In included file "./include/wait_until_disconnected.inc": 

included from c:/buildbot/win-rqg-se/build-debug/mysql-test/suite/storage_engine/trx/xa_recovery.test at line 63:

At line 24: Server failed to dissapear

The result from queries just before the failure was:

< snip >

# If XA should be supported, check the data in Information Schema.

# ---------------------------------------------------------------------------

call mtr.add_suppression("Found 2 prepared XA transactions");

FLUSH TABLES;

DROP TABLE IF EXISTS t1;

connect  con1,localhost,root,,;

connect  con2,localhost,root,,;

connection con1;

CREATE TABLE t1 (a <INT_COLUMN>) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;

XA START 'xa1';

INSERT INTO t1 (a) VALUES (1),(2);

XA END 'xa1';

XA PREPARE 'xa1';

connection con2;

XA START 'xa2';

INSERT INTO t1 (a) VALUES (3);

INSERT INTO t1 (a) VALUES (4);

XA END 'xa2';

XA PREPARE 'xa2';

connection default;

More results from queries before failure can be found in c:\buildbot\win-rqg-se\build-debug\mysql-test\var\log\xa_recovery.log