Hi list, I am running postfix-2.2.10 with cyrus-imap-2.2.12 on Redhat Enterprise Linux 4 update 4 on s390x (IBM Z series). After installing cyrus-imap & I am receving the following error in /var/log/maillog : P.S. - I have tried this on two different instances of RHEL4U4 for S390X running on IBM Z series (Z9) but I observed the same errors are coming on both of them immediately after installing cyrus-imapd. --------------------------------------------------------------------------------------------------------------- Sep 12 13:09:50 linux08 imaps[16727]: DBERROR: critical database situation Sep 12 13:09:50 linux08 master[16728]: about to exec /usr/lib64/cyrus-imapd/pop3d Sep 12 13:09:50 linux08 pop3[16728]: DBERROR: invalid berkeley_cachesize value, using internal default Sep 12 13:09:50 linux08 pop3[16728]: DBERROR db4: PANIC: fatal region error detected; run recovery Sep 12 13:09:50 linux08 pop3[16728]: DBERROR: critical database situation Sep 12 13:09:50 linux08 master[16729]: about to exec /usr/lib64/cyrus-imapd/pop3d Sep 12 13:09:50 linux08 pop3s[16729]: DBERROR: invalid berkeley_cachesize value, using internal default Sep 12 13:09:50 linux08 pop3s[16729]: DBERROR db4: PANIC: fatal region error detected; run recovery Sep 12 13:09:50 linux08 pop3s[16729]: DBERROR: critical database situation ---------------------------------------------------------------------------------------------------------------- I tried with "ctl_cyrusdb -r" but it did not work. ------------------------------------------------------------------------------ My /etc/cyrus.conf - # standard standalone server implementation START { # do not delete this entry! recover cmd="ctl_cyrusdb -r" # this is only necessary if using idled for IMAP IDLE # idled cmd="idled" } # UNIX sockets start with a slash and are put into /var/lib/imap/sockets SERVICES { # add or remove based on preferences imap cmd="imapd" listen="imap" prefork=5 imaps cmd="imapd -s" listen="imaps" prefork=1 pop3 cmd="pop3d" listen="pop3" prefork=3 pop3s cmd="pop3d -s" listen="pop3s" prefork=1 sieve cmd="timsieved" listen="sieve" prefork=0 # these are only necessary if receiving/exporting usenet via NNTP # nntp cmd="nntpd" listen="nntp" prefork=3 # nntps cmd="nntpd -s" listen="nntps" prefork=1 # at least one LMTP is required for delivery # lmtp cmd="lmtpd" listen="lmtp" prefork=0 lmtpunix cmd="lmtpd" listen="/var/lib/imap/socket/lmtp" prefork=1 # this is only necessary if using notifications # notify cmd="notifyd" listen="/var/lib/imap/socket/notify" proto="udp" prefork=1 } EVENTS { # this is required # checkpoint cmd="ctl_cyrusdb -c" period=30 checkpoint cmd="ctl_cyrusdb -c" period=5 # this is only necessary if using duplicate delivery suppression, # Sieve or NNTP delprune cmd="cyr_expire -E 3" at=0400 # this is only necessary if caching TLS sessions tlsprune cmd="tls_prune" at=0400 } ----------------------------------------------------------------------------------- My /etc/imapd.conf - configdirectory: /var/lib/imap partition-default: /var/spool/imap admins: cyrus sievedir: /var/lib/imap/sieve sendmail: /usr/sbin/sendmail hashimapspool: true sasl_pwcheck_method: saslauthd sasl_mech_list: PLAIN tls_cert_file: /usr/share/ssl/certs/cyrus-imapd.pem tls_key_file: /usr/share/ssl/certs/cyrus-imapd.pem tls_ca_file: /usr/share/ssl/certs/ca-bundle.crt ---------------------------------------------------------------------------------- Pls suggest how to fix this problem. My cyrus imap server is not coming up at all. Let me know if this is a known issue in RHEL4U4 for S390X ? Thanks in advance, Somnath