[Dovecot] pop3-login: Fatal: io_loop_handle_add: epoll_ctl(1, 5):

[Marco Nenciarini]

Mark Sapiro ha scritto:
> I have been running Dovecot 1.2.5 since Sept 14. Beginning at about
> 03:28 on Sept 21 for no apparent (to me) reason and continuing through
> the present, I am seeing log messages like the following and am
> experiencing delays logging in.
> 

Same problem here, after about the same time from last server re start.

Last restart log is:

Sep 14 19:05:07 server dovecot: Dovecot v1.2.5 starting up (core dumps 
disabled)

First failure is:

Sep 23 06:26:14 server dovecot: pop3-login: Fatal: io_loop_handle_add: 
epoll_ctl(1, 5): Operation not permitted

After the attached piece of log, the mail log is full of the same 
failure, and no customer can login using pop3 (imap works with no problems)

After a server restart the problem was vanished.

May be there is some kind of resource leakage.

Marco

P.S: This is my configuration is

# 1.2.5: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.26-2-xen-amd64 x86_64 Debian 5.0.3
log_timestamp: %Y-%m-%d %H:%M:%S
protocols: imap imaps pop3 pop3s managesieve
ssl_cert_file: /etc/ssl/certs/server.pem
ssl_key_file: /etc/ssl/private/server.key
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(pop3): /usr/lib/dovecot/pop3-login
login_executable(managesieve): /usr/lib/dovecot/managesieve-login
first_valid_uid: 2000
last_valid_uid: 2000
first_valid_gid: 2000
last_valid_gid: 2000
mail_privileged_group: mail
mail_location: maildir:~/Maildir
mbox_write_locks: fcntl dotlock
mail_executable(default): /usr/lib/dovecot/imap
mail_executable(imap): /usr/lib/dovecot/imap
mail_executable(pop3): /usr/lib/dovecot/pop3
mail_executable(managesieve): /usr/lib/dovecot/managesieve
mail_plugins(default): quota imap_quota expire trash
mail_plugins(imap): quota imap_quota expire trash
mail_plugins(pop3): quota expire
mail_plugins(managesieve):
mail_plugin_dir(default): /usr/lib/dovecot/modules/imap
mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap
mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3
mail_plugin_dir(managesieve): /usr/lib/dovecot/modules/managesieve
imap_client_workarounds(default): delay-newmail
imap_client_workarounds(imap): delay-newmail
imap_client_workarounds(pop3):
imap_client_workarounds(managesieve):
pop3_save_uidl(default): no
pop3_save_uidl(imap): no
pop3_save_uidl(pop3): yes
pop3_save_uidl(managesieve): no
pop3_uidl_format(default): %08Xu%08Xv
pop3_uidl_format(imap): %08Xu%08Xv
pop3_uidl_format(pop3): %f
pop3_uidl_format(managesieve): %08Xu%08Xv
pop3_client_workarounds(default):
pop3_client_workarounds(imap):
pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh
pop3_client_workarounds(managesieve):
namespace:
   type: private
   separator: .
   inbox: yes
   list: yes
   subscriptions: yes
namespace:
   type: private
   separator: .
   prefix: INBOX.
   hidden: yes
   list: no
   subscriptions: yes
lda:
   postmaster_address: postmaster at xcon.it
   mail_plugins: quota sieve expire
   auth_socket_path: /var/run/dovecot/auth-master
auth default:
   mechanisms: plain login
   passdb:
     driver: sql
     args: /etc/dovecot/dovecot-sql.conf
   userdb:
     driver: prefetch
   userdb:
     driver: sql
     args: /etc/dovecot/dovecot-sql.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
       user: vmail
       group: vmail
plugin:
   quota: dict:user::proxy::quota
   quota2: dict:domain:%d:proxy::quota_domain
   trash: /etc/dovecot/dovecot-trash.conf
   expire: Trash 7 Trash/* 7 Cestino 7 Cestino/* 7 Junk 30 Spam 30
   expire_dict: proxy::expire
   sieve: ~/.dovecot.sieve
   sieve_dir: ~/sieve
dict:
   quota: pgsql:/etc/dovecot/dovecot-dict-quota.conf
   quota_domain: pgsql:/etc/dovecot/dovecot-dict-quota-domain.conf
   expire: pgsql:/etc/dovecot/dovecot-dict-expire.conf


-- 
---------------------------------------------------------------------
|    Marco Nenciarini    | Debian/GNU Linux Developer - Plug Member |
| mnencia at prato.linux.it | http://www.prato.linux.it/~mnencia       |
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Key fingerprint = FED9 69C7 9E67 21F5 7D95  5270 6864 730D F095 E5E4

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