dovecot - Feb 2009 - dovecot 1.2.beta1: Fatal: io_loop_handle_add: epoll_ctl(1, 11): Bad file descriptor

I'm currently trying out 1.2.beta1 and get the following error in
'mail.err' log file as soon as I stop dovecot:

    Feb 11 20:28:30 server dovecot: Fatal: io_loop_handle_add: epoll_ctl(1, 11):
Bad file descriptor

Is that anything critical?

Thanks,
e-frog
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>: dovecot -n
# 1.2.beta1: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.27-11-server i686 Ubuntu 8.10
log_timestamp: %Y-%m-%d %H:%M:%S
protocols: imap managesieve
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable(default): /usr/lib/dovecot/imap-login
login_executable(imap): /usr/lib/dovecot/imap-login
login_executable(managesieve): /usr/lib/dovecot/managesieve-login
mail_privileged_group: mail
mail_location: maildir:~/.mail
mail_executable(default): /usr/lib/dovecot/imap
mail_executable(imap): /usr/lib/dovecot/imap
mail_executable(managesieve): /usr/lib/dovecot/managesieve
mail_plugins(default): quota imap_quota expire fts fts_squat
mail_plugins(imap): quota imap_quota expire fts fts_squat
mail_plugins(managesieve):
mail_plugin_dir(default): /usr/lib/dovecot/modules/imap
mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap
mail_plugin_dir(managesieve): /usr/lib/dovecot/modules/managesieve
auth default:
  passdb:
    driver: pam
  userdb:
    driver: passwd
  socket:
    type: listen
    client:
      path: /var/run/dovecot/auth-client
      mode: 432
      user: dovecot
      group: Debian-exim
    master:
      path: /var/run/dovecot/auth-master
      mode: 384
plugin:
  quota: maildir
  quota_rule: *:storage=1GB
  quota_rule2: Trash:storage=10%%
  expire: Trash 10
  expire_dict: proxy::expiredict
  sieve: ~/.dovecot.sieve
  sieve_dir: ~/.sieve
  fts: squat
  fts_squat: partial=4 full=10
dict:
  expiredict: mysql:/etc/dovecot/dovecot-dict-sql.conf