percona_extended_innodb_status test is unstable

[Laurynas Biveinis]

Test percona_extended_innodb_status sometimes fails with

innodb.percona_extended_innodb_status w4 [ fail ]
        Test ended at 2016-07-27 14:24:17

CURRENT_TEST: innodb.percona_extended_innodb_status
--- /mnt/workspace/percona-server-5.5-trunk/BUILD_TYPE/release/Host/centos5-32/mysql-test/suite/innodb/r/percona_extended_innodb_status.result 2016-06-30 21:03:06.743156797 +0300
+++ /mnt/workspace/percona-server-5.5-trunk/BUILD_TYPE/release/Host/centos5-32/mysql-test/suite/innodb/r/percona_extended_innodb_status.reject 2016-07-27 21:24:17.642521132 +0300
@@ -24,7 +24,7 @@
 UPDATE t SET value = 1 WHERE id = 3;
 connection default
 "Record lock" found
-n = 4
+n = 10
 ROLLBACK;
 connection con1
 ROLLBACK;
@@ -38,7 +38,7 @@
 UPDATE t SET value = 1 WHERE id = 3;
 connection default
 "Record lock" found
-n = 12
+n = 18
 ROLLBACK;
 connection con1
 ROLLBACK;
@@ -52,7 +52,7 @@
 UPDATE t SET value = 1 WHERE id = 3;
 connection default
 "Record lock" found
-n = 4
+n = 10
 too many locks printed
 ROLLBACK;
 connection con1
@@ -67,7 +67,7 @@
 UPDATE t SET value = 1 WHERE id = 3;
 connection default
 "Record lock" found
-n = 4
+n = 10
 ROLLBACK;
 connection con1
 ROLLBACK;

mysqltest: Result content mismatch

[Laurynas Biveinis (laurynas-biveinis)]

    https://github.com/percona/percona-server/pull/726
    https://github.com/percona/percona-server/pull/727
    https://github.com/percona/percona-server/pull/728

[Laurynas Biveinis (laurynas-biveinis)]

     https://github.com/percona/percona-server/pull/766
     https://github.com/percona/percona-server/pull/767
     https://github.com/percona/percona-server/pull/768

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-2162