dovecot - Feb 2017 - pop3 login core dump

Hello!

Sorry for my newbie question, I've notied some lines in my logfile
like this:

Feb 13 16:05:54 pop3-login: Fatal: master: service(pop3-login): child 10660
killed with signal 11 (core not dumped - add -D parameter to service pop3-login
{ executable } ...

where am I supposed to add the -D option in order to get the core file
dumped so I can examine it?

Thanks to all,

luciano.
-- 
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On Mon, 13 Feb 2017 16:45:21 +0100
Luciano Mannucci <luciano at vespaperitivo.it> wrote:
> where am I supposed to add the -D option in order to get the core file
> dumped so I can examine it?
Ops, forgotten to post my doveconf.

Here is it:

# 2.2.27 (c0f36b0): /usr/local/etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.15 (97b3da0)
# OS: Linux 3.0.101-105-pae i686 openSUSE 11.4 (i586) ext3
auth_cache_size = 3 k
auth_debug = yes
auth_debug_passwords = yes
auth_mechanisms = plain login
auth_verbose = yes
default_client_limit = 1228
default_vsz_limit = 712 M
disable_plaintext_auth = no
first_valid_gid = 0
first_valid_uid = 100
info_log_path = /var/log/dovecot/logfile.info
listen = *
log_path = /var/log/dovecot/logfile
login_greeting = Dovecot at Baobab ready.
login_trusted_networks = 127.0.0.0/8 212.45.144.0/24 192.168.134.0/24
mail_location =
mbox:/var/spool/mailboxes/%u:INBOX=/var/spool/mail/%u:DIRNAME=mbox:INDEX=/var/dovecot_indexes/%u
maildir_copy_with_hardlinks = no
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character
vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy
include variables body enotify environment mailbox date index ihave duplicate
mime foreverypart extracttext
namespace {
  inbox = yes
  location = 
  prefix = 
  separator = .
  type = private
}
passdb {
  driver = pam
}
plugin {
  mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename
  mail_log_fields = uid box msgid size
}
protocols = pop3 imap
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0660
    user = postfix
  }
  user = root
}
service imap-login {
  inet_listener imaps {
    address = *
  }
  process_limit = 512
}
service pop3-login {
  inet_listener pop3s {
    address = *
  }
  process_limit = 512
}
ssl_ca = </etc/ssl/ca.crt
ssl_cert = </etc/ssl/certs/dovecot.pem
ssl_key =  # hidden, use -P to show it
userdb {
  driver = passwd
}
version_ignore = yes
protocol imap {
  imap_client_workarounds = delay-newmail
  mail_plugins = mail_log notify
}
protocol pop3 {
  pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
  pop3_enable_last = yes
}
protocol lda {
  info_log_path = /var/log/dovecot/lda.log
  log_path = /var/log/dovecot/lda-errors.log
  postmaster_address = postmaster at mcs.it
}

Luciano.
-- 
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 \ /  ASCII RIBBON CAMPAIGN / PHONE : +39 2 485781 FAX: +39 2 48578250
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On Mon, 13 Feb 2017 16:45:21 +0100
Luciano Mannucci <luciano at vespaperitivo.it> wrote:
> where am I supposed to add the -D option in order to get the core file
> dumped so I can examine it?
I think I've got it. I've set my config to:

service pop3-login {
  executable = pop3-login -D
  inet_listener pop3s {
    address = *
  }
  process_limit = 512
}

Now I have to wait till next SIGSEV...

Luciano.
-- 
 /"\                         /Via A. Salaino, 7 - 20144 Milano (Italy)
 \ /  ASCII RIBBON CAMPAIGN / PHONE : +39 2 485781 FAX: +39 2 48578250
  X   AGAINST HTML MAIL    /  E-MAIL: posthamster at sublink.sublink.ORG
 / \  AND POSTINGS        /   WWW: http://www.lesassaie.IT/