Sporadic innodb_plugin.percona_changed_page_bmp failures in Jenkins

http://jenkins.percona.com/view/PS%205.1/job/percona-server-5.1-param/367/BUILD_TYPE=debug,Host=ubuntu-lucid-32bit/testReport/junit/%28root%29/innodb_plugin/percona_changed_page_bmp/

...
Version: '5.1.63-debug-log' socket: '/tmp/FL0re8a_g4/2/mysqld.1.sock' port: 13000 Source distribution
SIGKILL myself
----------SERVER LOG END-------------

Logfile:
CURRENT_TEST: innodb_plugin.percona_changed_page_bmp
mysqltest: At line 100: query 'DROP TABLE t1, t2' failed: 2013: Lost connection to MySQL server during query

The result from queries just before the failure was:
< snip >
CREATE TABLE t1 (x INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1),(2),(3),(4),(5);
INSERT INTO t1 SELECT x FROM t1;
INSERT INTO t1 SELECT x FROM t1;
INSERT INTO t1 SELECT x FROM t1;
INSERT INTO t1 SELECT x FROM t1;
INSERT INTO t1 SELECT x FROM t1;
INSERT INTO t1 SELECT x FROM t1;
INSERT INTO t1 SELECT x FROM t1;
INSERT INTO t1 SELECT x FROM t1;
INSERT INTO t1 SELECT x FROM t1;
INSERT INTO t1 SELECT x FROM t1;
INSERT INTO t1 SELECT x FROM t1;
INSERT INTO t1 SELECT x FROM t1;
CREATE TABLE t2 (x INT) ENGINE=InnoDB;
INSERT INTO t2 VALUES (1),(2),(3),(4),(5);
INSERT INTO t1 SELECT x FROM t1;
SET GLOBAL INNODB_FAST_SHUTDOWN=2;
call mtr.add_suppression("InnoDB: Warning: truncated block detected.*");

More results from queries before failure can be found in /home/jenkins/workspace/percona-server-5.1-param/BUILD_TYPE/debug/Host/ubuntu-lucid-32bit/Percona-Server/mysql-test/var/2/log/percona_changed_page_bmp.log
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