--source include/have_debug.inc
--source include/have_debug_sync.inc

--echo #
--echo # Bug#20872655 XA ROLLBACK IS NOT CRASH-SAFE
--echo #

CREATE TABLE t(a INT PRIMARY KEY, b INT UNIQUE) ENGINE=INNODB;
connect (con1,localhost,root);
XA START 'zombie';
insert into t(a) values (0);
update t set b=a;
SELECT COUNT(*) FROM t;
XA END 'zombie';
XA PREPARE 'zombie';
SET DEBUG_SYNC='trx_xa_rollback SIGNAL s1 WAIT_FOR s2';
--send XA ROLLBACK 'zombie'
connection default;
SET DEBUG_SYNC='now WAIT_FOR s1';
# Ensure that the state change from XA PREPARE to ACTIVE gets flushed
# to the redo log. Without this, it could be that we will recover to
# a state that precedes the start of the XA ROLLBACK.
SET GLOBAL innodb_log_checkpoint_now=ON;
--source include/kill_and_restart_mysqld.inc
disconnect con1;
--error ER_XAER_NOTA
XA COMMIT 'zombie';
SELECT COUNT(*) FROM t;
DROP TABLE t;