Sporadic "arr->n_reserved == 0" assertion failures in debug builds

[Alexey Kopytov]

The compact_compressed test sporadically fails in debug builds as follows:

130703 20:10:51 InnoDB: Assertion failure in thread 140684768057120 in file sync/sync0arr.c line 269
InnoDB: Failing assertion: arr->n_reserved == 0
InnoDB: We intentionally generate a memory trap.
InnoDB: Submit a detailed bug report to http://bugs.mysql.com.
InnoDB: If you get repeated assertion failures or crashes, even
InnoDB: immediately after the mysqld startup, there may be
InnoDB: corruption in the InnoDB tablespace. Please refer to
InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-innodb-recovery.html
InnoDB: about forcing recovery.
innobackupex: Error:
innobackupex: ibbackup failed at /mnt/workspace/percona-xtrabackup-2.1-param/BUILD_TYPE/debug/Host/centos6-64/xtrabackuptarget/innodb51/innobackupex line

http://jenkins.percona.com/view/XtraBackup/job/percona-xtrabackup-2.1-param/360/BUILD_TYPE=debug,Host=centos6-64,xtrabackuptarget=innodb51/testReport/junit/%28root%29/t_compact_compressed/sh/

[Alexey Kopytov (akopytov)]

Also occurs for the compact.sh test:

130924 18:23:35 InnoDB: Assertion failure in thread 140572104214304 in file sync/sync0arr.c line 269
InnoDB: Failing assertion: arr->n_reserved == 0

http://jenkins.percona.com/view/XtraBackup/job/percona-xtrabackup-2.2-param/13/BUILD_TYPE=debug,Host=debian6-64,xtrabackuptarget=innodb51/testReport/junit/%28root%29/t_compact/sh/

[Alexey Kopytov (akopytov)]

Also occurs in other tests, e.g. bug759701.sh: http://jenkins.percona.com/view/XtraBackup/job/percona-xtrabackup-2.1-param/466/BUILD_TYPE=debug,Host=ubuntu-lucid-64bit,xtrabackuptarget=innodb51/testReport/junit/%28root%29/t_bug759701/sh/

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PXB-647