[Dovecot] Index corruption ?

[Geoffroy Desvernay]

Hi,

We are using dovecot for some times (a little before 1.0), for IMAP and
(a little for the moment) deliver.

We have ~20000 logins/day, Maildirs are over NFS (with indexes too, for
the moment...)

Up to 1.0.5, we sometime have this error in maillog:
________________________________________________________________________
Nov  1 13:55:41 tic dovecot: IMAP(login): file mail-index-view-sync.c:
line 666 (mail_index_view_sync_end): assertion failed:
(view->log_file_offset >= view->map->hdr.log_file_int_offset)
________________________________________________________________________

I didn't find any bits on google, nor on this list's archive...


# gdb (without debug, I may do it if required)
________________________________________________________________________
Program terminated with signal 6, Aborted.
Reading symbols from /usr/local/lib/libiconv.so.3...(no debugging
symbols found)...done.
Loaded symbols for /usr/local/lib/libiconv.so.3
Reading symbols from /lib/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /libexec/ld-elf.so.1...(no debugging symbols
found)...done.
Loaded symbols for /libexec/ld-elf.so.1
#0  0x182ad51f in kill () from /lib/libc.so.6
(gdb) bt
#0  0x182ad51f in kill () from /lib/libc.so.6
#1  0x182ad4be in raise () from /lib/libc.so.6
#2  0x182ac0e8 in abort () from /lib/libc.so.6
#3  0x080a85da in i_set_failure_syslog ()
#4  0x080a80e1 in data_stack_deinit ()
#5  0x08092c97 in mail_index_view_sync_end ()
#6  0x0808229e in index_mailbox_sync_next ()
#7  0x0000001c in ?? ()
#8  0xbfbfe7e8 in ?? ()
#9  0x080d3140 in ?? ()
#10 0x080d8044 in ?? ()
#11 0x0000001c in ?? ()
#12 0xbfbfe828 in ?? ()
#13 0x08060761 in imap_sync_deinit ()
Previous frame inner to this frame (corrupt stack?)
____________________________________________________________________


dovecot -n
# 1.0.5: /usr/local/etc/dovecot.conf
ssl_ca_file: /etc/ssl/cacert.pem
ssl_cert_file: /etc/ssl/private/imaps.ec-marseille.fr.pem
ssl_key_file: /etc/ssl/private/imaps.ec-marseille.fr.key
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable: /usr/local/libexec/dovecot/imap-login
login_greeting: IMAP Centrale ready.
login_greeting_capability: yes
login_process_size: 64
login_processes_count: 20
login_max_processes_count: 512
valid_chroot_dirs: /users:/home
max_mail_processes: 2048
verbose_proctitle: yes
first_valid_uid: 1000
last_valid_uid: 55000
first_valid_gid: 999
last_valid_gid: 55000
mail_extra_groups: mail
mail_location: maildir:%h/Maildir/
mmap_disable: yes
lock_method: flock
maildir_stat_dirs: yes
maildir_copy_with_hardlinks: yes
mail_drop_priv_before_exec: yes
mail_executable: /usr/local/libexec/dovecot/imap_convert
imap_client_workarounds: delay-newmail outlook-idle netscape-eoh
tb-extra-mailbox-sep
auth default:
  verbose: yes
  worker_max_count: 60
  passdb:
    driver: pam
    args: imap
  passdb:
    driver: ldap
    args: /usr/local/etc/dovecot-ldap.conf
  userdb:
    driver: passwd
  userdb:
    driver: ldap
    args: /usr/local/etc/dovecot-uldap.conf
  socket:
    type: listen
    client:
      path: /var/spool/postfix/private/auth
      mode: 432
      user: postfix
      group: postfix
    master:
      path: /var/run/dovecot/auth-master
      mode: 384
plugin:
  quota: fs

___________________________________________________________________
# dovecot-ldap.conf (dovecot-uldap.conf is a symlink)
___________________________________________________________________
hosts = ldapr.serv.int:389  ldap:389
dn = <our binddn>
dnpass = <our pass>
auth_bind = yes
ldap_version = 3
base = ou=People,<our_basedn>
deref = never
scope = onelevel
user_attrs = homeDirectory=home,uidNumber=uid,gidNumber=gid,uid=system_user
user_filter =
(&(objectClass=inetLocalMailRecipient)(|(uid=%u)(mail=%u)(mail=%n@<our_primary_domain>)))
pass_attrs = uid=user
pass_filter =
(&(objectClass=inetLocalMailRecipient)(|(uid=%u)(mail=%u)(mail=%n@<our_primary_domain>)))
____________________________________________________________________


-- 
         ___________________________________________________________
        /     Geoffroy DESVERNAY       |                            \
       /\        `Service info`        | Tel: (+33|0)4 91 05 45 24  /\
       \/ Ecole Centrale de Marseille  | Fax: (+33|0)4 91 05 45 98  \/
        \         (ex-EGIM)            | Mail: dgeo at ec-marseille.fr /
         -----------------------------------------------------------


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