kolab2.1 cyrus errors

[rajnish kumar]

Dear friends
                      Now a days i find some cyrus DB error in my
Kolab2.1 servers. Have any one has opinion   about this imap.log file
is like this



Jan 09 11:36:49 indo <error> imap[3800]: DBERROR: opening
/kolab/var/imapd/mailboxes.db: cyrusdb error
Jan 09 11:36:49 indo <error> imap[3800]: Fatal error: can't read mailboxes file
Jan 09 11:36:49 indo <debug> imap[3802]: executed
Jan 09 11:36:49 indo <warning> imap[3802]: DBERROR db4: Logging region
out of memory; you may need to increase its size
Jan 09 11:36:49 indo <error> imap[3802]: DBERROR: opening
/kolab/var/imapd/mailboxes.db: Cannot allocate memory
Jan 09 11:36:49 indo <error> imap[3802]: DBERROR: opening
/kolab/var/imapd/mailboxes.db: cyrusdb error
Jan 09 11:36:49 indo <error> imap[3802]: Fatal error: can't read mailboxes file
Jan 09 11:36:49 indo <debug> imap[3804]: executed


with regds
rajnish